[appengine-java] Re: DisplayTag JSP
If you have any objects in that resultset which are lazily loaded, then closing the entity manager before you've looped through the resultset will produce an exception and the route to the data store to retrieve the data has been closed. You have two options: 1) Aggressively fetch the data which you're looping through, so that all data is retrieved from the data store before you iterate over it. 2) Close the entity manager after you've looped through the required data. On Nov 16, 3:51 am, YONG yongkia...@gmail.com wrote: Hi, I want to know what is the different of this code when compiling and execute in GAE. % EntityManager em = EMF.getInstance().createEntityManager(); ListUser users = (ListUser) em.createQuery( SELECT FROM + User.class.getName()).getResultList(); request.setAttribute(rs, users); em.close(); % display:table requestURI=displaytag.jsp name=rs export=true sort=list pagesize=10 class=display display:column property=id title=User ID sortable=true headerClass=sortable / display:column property=name title=User Name sortable=true headerClass=sortable / display:column property=gender title=Gender / display:column property=aboutYou title=About You / display:column property=country title=Country / display:column property=mailingList title=JOIN? / /display:table The above code is giving error code HTTP 500. However, when I change to % EntityManager em = EMF.getInstance().createEntityManager(); ListUser users = (ListUser) em.createQuery( SELECT FROM + User.class.getName()).getResultList(); request.setAttribute(rs, users); // em.close(); // just comment this line and move it down % display:table requestURI=displaytag.jsp name=rs export=true sort=list pagesize=10 class=display display:column property=id title=User ID sortable=true headerClass=sortable / display:column property=name title=User Name sortable=true headerClass=sortable / display:column property=gender title=Gender / display:column property=aboutYou title=About You / display:column property=country title=Country / display:column property=mailingList title=JOIN? / /display:table % em.close(); % Then the JSP is running and show the result in displaytag table. Anyone can explain why? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Won't get values of an array inside POJO
Hi all, I don't know why for any kind of array (List or Object[]) inside my Pojo app engine fails to get correct values and get always null. I already check out at local dataviewer, and as a matter fact values seems to be saved succesfull. Anyone can help me? Thanks in advance -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Email .csv attachment in UTF-8 charset
Hi all, I am trying to send an email with an attachment having Content-Type text/comma-separated-values; charset=UTF-8. The attachment is sent, but it comes out in encoding base64(US-ASCII). I do something like this: import javax.mail.Multipart; import javax.mail.internet.MimeBodyPart; import javax.mail.internet.MimeMultipart; // ... String htmlBody;// ... String attachmentData; // ... Multipart mp = new MimeMultipart(); MimeBodyPart htmlPart = new MimeBodyPart(); htmlPart.setContent(htmlBody, text/html); mp.addBodyPart(htmlPart); MimeBodyPart attachment = new MimeBodyPart(); attachment.setFileName(data.csv); attachment.setContent(attachmentData, text/comma-separated- values; charset=UTF-8); mp.addBodyPart(attachment); message.setContent(mp); But the attachment comes out in us-ascii. I've als tried with setting headers, but to no avail. I probably need to approach this differently. So, any pointers greatly appreciated. Thanks! Robert -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Re: Won't get values of an array inside POJO
Perhaps you don't have it in the fetch plan? as per the DataNucleus docs, or many many posts on this forum -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] XMPP and JID
Hello I am using XMPP API. It looks that JID of a google account user does not remain constant. If a user is using gmail, then his JID is mai...@gmail.com/gmail.SOME_NO and when he is using gtalk JID is mai...@gmail.com/talk.SOME_DIFF_NO. I need to have something (for example mail id) which remains constant every time a user uses my website. I didn't find any function to extract constant part of JID. I tried using Users Service of Google App engine by including import com.google.appengine.api.users.User; import com.google.appengine.api.users.UserService; import com.google.appengine.api.users.UserServiceFactory;*** *but user remains null. Is their any way to get constant part from all Types of JID's. * *Regards Sahil* * -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] case sensitivity
Is there any way to perform a JDO query on google app engine using a case insensitive string comparison? e.g. For example, Query query = pm.newQuery(User.class, userName.toLowerCase() == user password == pass); query.declareParameters(String user, String pass); query.setUnique(true); User user = (User) query.execute(userName.toLowerCase(), password); Of course GAE does not support the usage of toLowerCase() in the filter string. There's probably a terribly simple way to do this that I'm just not aware of. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Re: updating object doesn't work anymore
Anyone? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Re: Email .csv attachment in UTF-8 charset
Hi, As an another way. How about this technique ? 1. import import javax.mail.util.ByteArrayDataSource; import javax.activation.DataHandler; import javax.activation.DataSource; 2.modify //attachment.setContent(attachmentData, text/comma-separated-values; charset=UTF-8); ByteArrayDataSource byteArrayDataSource = new ByteArrayDataSource (attachmentData, text/comma-separated-values; charset=UTF-8); attachment.setDataHandler(new DataHandler(byteArrayDataSource)); thanks. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
Re: [appengine-java] case sensitivity
The recommended approach is to store the userName in all lower case, as an additional field/column, and then do the toLowerCase on the incoming parameter user name when you do the query and use that field/column that was stored in lower case. Kris wrote: Is there any way to perform a JDO query on google app engine using a case insensitive string comparison? e.g. For example, Query query = pm.newQuery(User.class, userName.toLowerCase() == user password == pass); query.declareParameters(String user, String pass); query.setUnique(true); User user = (User) query.execute(userName.toLowerCase(), password); Of course GAE does not support the usage of toLowerCase() in the filter string. There's probably a terribly simple way to do this that I'm just not aware of. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Embedded objects come back null in unit tests
Hi All,
I have followed the instructions on how to create the appropriate
classes for JUnit testing and have a fairly simple object hierarchy. I
have one class that includes a few embedded objects, they are all
correctly annotated with JDO annotations (i have compared them
directly to the example jdo classes that ship with GAE). I create an
instance of the parent object, set all the fields including the
embedded ones, then used the PersistenceManager to make the instance
persisted. When i query for all instances of the class, I get back the
right number of instances, the non-embedded fields are there, but all
of the embedded fields have null values.
I also tried writing a simple test using the AddressBookEntry class,
and see the same behavior when looking in the debugger, that code is
as follows:
@Test
public void testAddy(){
AddressBookUtils.insertNew
(John,Doe,Hart,CT,8448445);
PersistenceManager pm = PMF.get().getPersistenceManager();
Query q = pm.newQuery(AddressBookEntry.class);
List l = (List) q.execute();
}
Anyone have any pointers on how to resolve this?
Thanks!
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[appengine-java] EntityGroup getting all children of a parent
Hello,
I tried to do a little test and wrote two classes:
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Tenant {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private String name;
public Tenant(String name){
this.name = name;
}
public String getName(){
return this.name;
}
public void setKey(Key key) {
this.key = key;
}
public Key getKey(){
return this.key;
}
}
and
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Account {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private String name;
@Persistent
private String description;
@Persistent
private String address;
...
}
I generate a set of Accounts, which belong to a tenant with this code:
PersistenceManager pm = PMF.get().getPersistenceManager();
KeyFactory.Builder keyBuilder = new KeyFactory.Builder
(Tenant.class.getSimpleName(), TenantX121); Key key =
keyBuilder.getKey();
Tenant tenant = new Tenant(TenantX121);
tenant.setKey(key);
pm.makePersistent(tenant);
for(int i = 1; i 1001; i++){
keyBuilder = new
KeyFactory.Builder(Tenant.class.getSimpleName
(), TenantX121);
keyBuilder.addChild(Account.class.getSimpleName(),
acctid+i);
Key acckey = keyBuilder.getKey();
Account acct = new Account(name, description,
address, ...);
acct.setKey(acckey);
pm.makePersistent(acct);
}
Now I want to query all Accounts that belong to a tenant:
PersistenceManager pm = PMF.get().getPersistenceManager();
Transaction tx = pm.currentTransaction();
try {
tx.begin();
Key k = KeyFactory.createKey(Tenant.class.getSimpleName(),
TenantX121);
//Tenant e = pm.getObjectById(Tenant.class, k);
Query query = pm.newQuery(Account.class);
query.setFilter(Key == keyParam);
query.declareParameters(Key keyParam);
ListAccount accounts = (ListAccount)query.execute(k);
But unfortunately this doesn't work. In the documentation
http://code.google.com/appengine/docs/java/datastore/transactions.html
example they query on parent-pk, but it is not clear, what parent-pk
is (is it an attribute or a metadatafield). Of course I also tried to
query on parent-pk, but whatever I do, I receive this error:
javax.jdo.JDOException: Key
at
org.datanucleus.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException
(NucleusJDOHelper.java:475)
...
NestedThrowablesStackTrace:
Key
org.datanucleus.exceptions.ClassNotResolvedException: Key
at org.datanucleus.util.Imports.resolveClassDeclaration(Imports.java:
194)
I've also tried to add
@Persistent
@Extension(vendorName=datanucleus, key=gae.parent-pk,
value=true)
private Key customerKey;
to my Accountclass, but this would only be used if I would like
appengine to generate the Primarykey of the child objects itself I
suppose.
What am I doing wrong?
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[appengine-java] How to design data model
Hi, I am developing the following app: user logs in and see list of items, e.g. list of cars. Each item has a few parameters, for car item it can be speed, color and manufacturer. User can add, edit and delete items. Most importantly, user can change the item type - so for example he can modify the car type in this way: remove speed parameter and add price and weight parameters. Users should also be able to filter the items by parameters. This should be possible in my app: user creates Books I have read item type with Title, Date and Rating parameters, adds several books and then searches (filters) all books with rating greater than 3. How should I design the datastore data model? Is this even possible in App Engine? Thanks -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] JDO not saved (commit) when using spring @ModelAttribute
Dear All
I use JDO with spring
and when i add @ModelAttribute(countries)
All things go fine except the data not saved without any exception
When query from another datastore
@Controller
public class PortController {
private static final String FORM_MODEL_KEY = ports;
private static final String FORM_UPDATE_KEY = port/Edit;
private static final String REDIRECT_LIST_VIEW_KEY = redirect:/port/
home.htm ;
@Autowired
private PortDAO portDAO;
@Autowired
private CountryDAO countryDAO;
public PortController() {}
@InitBinder
protected void initBinder(HttpServletRequest request,
ServletRequestDataBinder binder) throws Exception {
binder.registerCustomEditor(String.class, new
StringTrimmerEditor(false));
binder.registerCustomEditor
(com.xesolution.domain.Country.class, new CountryEditor(countryDAO));
}
@RequestMapping(value=/port/home.htm)
public ModelMap list() {
return new ModelMap(FORM_MODEL_KEY,portDAO.readAll());
}
@RequestMapping(value=/port/new.htm)
public ModelAndView create(){
Port port = new Port();
return new ModelAndView(FORM_UPDATE_KEY,FORM_MODEL_KEY,port);
}
@RequestMapping(value=/port/update.htm)
public ModelAndView update(@RequestParam(id) String id) {
Port result = portDAO.read(id);
return new ModelAndView(FORM_UPDATE_KEY,FORM_MODEL_KEY, result);
}
@RequestMapping(value=/port/save.htm, method = RequestMethod.POST)
public ModelAndView save(@ModelAttribute(FORM_MODEL_KEY) Port port,
BindingResult result, SessionStatus status) {
new PortValidator().validate(port, result);
if (result.hasErrors())
{
return new ModelAndView(FORM_UPDATE_KEY, FORM_MODEL_KEY,
port);
}
else
{
portDAO.persist(port);
return new ModelAndView(FORM_UPDATE_KEY, FORM_MODEL_KEY, port);
return new ModelAndView(REDIRECT_LIST_VIEW_KEY, list());
}
}
@ModelAttribute(countries)
public List? populateCountry() {
//this make data not saved
return countryDAO.readAll();
//But this make the data saved
//return portDAO.readAll();
}
public void setPortDAO(PortDAO portDAO) {
this.portDAO = portDAO;
}
}
and this is jsp line which display the form select
form:select path=country items=${countries} itemLabel=name
itemValue=id/
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[appengine-java] how to find list of subscribed users for XMPP service?
Can I get all contacts those subscribed to my application? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Datastore: is numeric ID unique for all entities of one type?
Good day. As far as documentation states, The key value includes the key of the entity group parent (if any) and either the app-assigned string ID or the system-generated numeric ID. To create the object with an app- assigned string ID, you create the Key value with the ID and set the field to the value. To create the object with a system-assigned numeric ID, you leave the key field null. Is this the id that can be accessed via Key#getId() call? I assume it is. My main question is: is this numeric ID guaranteed to be unique for all entities of the same type? If yes, how do you retrieve the entity using this id? I tried using PersistenceManager#getObjectById(), but it does not find my entity. I guess this is related to the fact that my entity is child in an entity group, thus its keys' string representation would not be MyClass (10) (which is created when I use KeyFactory to create key from an entity type and a numeric ID) but MyParent(20)/MyClass(10). Thanks in advance, Evgeny. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Re: batik
I would like to know the answer to this too as I can't seem to make it work. Best wishes, Dan On Nov 7, 8:53 pm, black_13 jjosb...@gmail.com wrote: Can the batik library for svg be used with the GAE java? regards, black_13 -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Re: case sensitivity
I'm more concerned about the proper way to do this generically. I can't realistically store duplicates of every string based field that I may want to search for. On Nov 16, 11:36 am, Rusty Wright rwright.li...@gmail.com wrote: The recommended approach is to store the userName in all lower case, as an additional field/column, and then do the toLowerCase on the incoming parameter user name when you do the query and use that field/column that was stored in lower case. Kris wrote: Is there any way to perform a JDO query on google app engine using a case insensitive string comparison? e.g. For example, Query query = pm.newQuery(User.class, userName.toLowerCase() == user password == pass); query.declareParameters(String user, String pass); query.setUnique(true); User user = (User) query.execute(userName.toLowerCase(), password); Of course GAE does not support the usage of toLowerCase() in the filter string. There's probably a terribly simple way to do this that I'm just not aware of. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/google-appengine-java?hl=. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
Re: [appengine-java] Re: Delete task queue
Peter, File a bug if you can. Even though it's experimental, it's been released to the public and we can use all the help we can get when prioritizing issues. Thanks! On Mon, Nov 16, 2009 at 7:52 AM, Peter Ondruska peter.ondru...@gmail.comwrote: OK, seems like a bug to me. Does it make sense to file an issue for this as it is experimental feature or shall I wait until it is more mature? Peter On Nov 13, 9:20 am, Peter Ondruska peter.ondru...@gmail.com wrote: Ikai, the application id is kaibo-www On 11 lis, 22:31, Peter Ondruska peter.ondru...@gmail.com wrote: Ikai, I have updated_queues (queue.xml follows) but thequeueis still there. ?xml version=1.0 encoding=UTF-8? queue-entries xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance; xsi:noNamespaceSchemaLocation=http://googleappengine.googlecode.com/ svn/trunk/java/docs/queue.xsd !--queue nameipn-queue/name rate5/s/rate bucket-size5/bucket-size /queue-- /queue-entries On 10 lis, 23:58, Ikai L (Google) ika...@google.com wrote: Peter, Were you able todeletethe taskqueue? One thing you can try is using the update_queue command line tool with your XML file: ./appengine-java-sdk/bin/appcfg.sh update_queues myapp/war This is described here: http://code.google.com/appengine/docs/java/config/queue.html This should take a few minutes to propagate. Ikai On Tue, Nov 10, 2009 at 8:24 AM, Peter Ondruska peter.ondru...@gmail.comwrote: Actually I am not sure, so I deleted the other version. But thisqueue still exists. I will wait one more day. Thanks On 9 lis, 23:41, victor victoraco...@gmail.com wrote: You might have a previous version of the app that still refers to the oldqueue.Deletethose versions. On Nov 9, 7:29 am, Peter Ondruska peter.ondru...@gmail.com wrote: I have defined taskqueueusingqueue.xml but later decided not to use it. It still appears inqueuelist in app engine. How do Ideletethis taskqueue? Uploadingqueue.xml with empty queue-entries? Thanks, Peter -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Re: EntityGroup getting all children of a parent
Query query = pm.newQuery(Account.class); org.datanucleus.exceptions.ClassNotResolvedException: Key at org.datanucleus.util.Imports.resolveClassDeclaration(Imports.java: As the message says ... Key is not resolved to be a class. It certainly isn't a field, but you do have a field with lowercase k if that is what you meant to type. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Re: EntityGroup getting all children of a parent
sorry, was just a typo. of course it is query.setFilter(key == keyParam); but the error is the same On Nov 16, 10:15 pm, datanucleus andy_jeffer...@yahoo.com wrote: Query query = pm.newQuery(Account.class); org.datanucleus.exceptions.ClassNotResolvedException: Key at org.datanucleus.util.Imports.resolveClassDeclaration(Imports.java: As the message says ... Key is not resolved to be a class. It certainly isn't a field, but you do have a field with lowercase k if that is what you meant to type. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[appengine-java] Re: Can't send mail with attachment using JavaMail API
Hi Ikai, thanx for you help.
I've copy pasted your code on my webapp (webwinewatch), I've no error
but the mail isn't correctly relayed, all attachements are removed.
I've just modified the sender, from and recipient lines :
message.setSender(new InternetAddress(myaddress@gmail.com, Relay
account));
message.setFrom(message.getSender());
message.setRecipient(Message.RecipientType.TO, message.getSender());
Do you have any clue ?
You can test it, sending an email to : contact-
t...@webwinewatch.appspotmail.com
Thanx again for your help.
On 16 nov, 21:35, Ikai L (Google) ika...@google.com wrote:
I couldn't reproduce your exact error, but I was able to put together a
working example of an inbound email handler to relay messages. I'm going to
expand the documentation about processing inbound emails. Here's some
working code:http://pastie.org/701517
Does this example help any? Code is also pasted below, but it'll be easier
for you to look at the Pastie.
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletException;
import javax.mail.*;
import javax.mail.util.ByteArrayDataSource;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.InternetAddress;
import javax.activation.DataHandler;
import java.io.IOException;
import java.io.InputStream;
import java.util.logging.Logger;
import java.util.Properties;
public class MailHandlerServlet extends HttpServlet {
private static final Logger log =
Logger.getLogger(MailHandlerServlet.class.getName());
private static final String RECIPIENT = recipi...@gmail.com;
private static final String SENDER = sen...@google.com;
protected void doPost(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
Properties props = new Properties();
Session session = Session.getDefaultInstance(props, null);
try {
MimeMessage message = new MimeMessage(session,
request.getInputStream());
Object content = message.getContent(); // You could also
probably just use message.getInputStream() here
// and avoid the
conditional type check
if (content instanceof String) {
log.info(Received a string);
} else if (content instanceof InputStream) {
// My somewhat limited testing indicates that this is always
getting returned as an
// InputStream
InputStream inputStream = (InputStream) content;
ByteArrayDataSource inboundDataSource = new
ByteArrayDataSource(inputStream, message.getContentType());
Multipart inboundMultipart = new
MimeMultipart(inboundDataSource);
// Set the body with whatever text you want
Multipart outboundMultipart = new MimeMultipart();
MimeBodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText(Set your body here);
outboundMultipart.addBodyPart(messageBodyPart);
// Loop over the multipart message coming in and
// append them to the outbound Multipart object
for (int i = 0; i inboundMultipart.getCount(); i++) {
BodyPart part = inboundMultipart.getBodyPart(i);
/*
The content-disposition header is optional:
http://www.ietf.org/rfc/rfc1806.txt
This header specifies the filename and type of
a MIME part.
*/
if(part.getDisposition() == null) {
// This is just a plain text email
} else {
// We have something interesting. Let's parse it.
// Create a new ByteArrayDataSource with this part
MimeBodyPart inboundMimeBodyPart = (MimeBodyPart)
part;
InputStream is = part.getInputStream();
ByteArrayDataSource mimePartDataSource = new
ByteArrayDataSource(is, inboundMimeBodyPart.getContentType());
// Create a new outbound MimeBodyPart and set this
as the handler
MimeBodyPart outboundMimeBodyPart = new
MimeBodyPart();
outboundMimeBodyPart.setDataHandler(new
DataHandler(mimePartDataSource));
outboundMimeBodyPart.setFileName(inboundMimeBodyPart.getFileName());
outboundMultipart.addBodyPart(outboundMimeBodyPart);
}
}
message.setContent(outboundMultipart);
}
message.setFrom(new
Re: [appengine-java] Problems with large request/response headers
Matt, This looks like it may be a JeTTy issue: http://jira.codehaus.org/browse/JETTY-336 That being said, I'm curious as to what data you are storing in the cookie. Less than 1.5% of sites pass cookies larger than 1501 bytes, and there are performance implications for passing large amounts of cookies: http://yuiblog.com/blog/2007/03/01/performance-research-part-3 Is this data you can store in the session instead? On Fri, Nov 13, 2009 at 12:05 PM, Matthew McGinty mcgin...@gmail.comwrote: I'm using the GAE Java Dev Server (i.e. Jetty). When I request a page that sends a large amount of cookie data to the browser and then re-request the page (so that the browser sends the cookies back to the server) I get this stacktrace: == Nov 13, 2009 6:35:13 PM com.google.apphosting.utils.jetty.JettyLogger warn WARNING: handle failed java.io.IOException: FULL head at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:276) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at org.mortbay.io.nio.SelectChannelEndPoint.run (SelectChannelEndPoint.java:396) at org.mortbay.thread.BoundedThreadPool$PoolThread.run (BoundedThreadPool.java:442) == The behavior I see is that the browser receives what seems to be a completely empty response body, and the access log does not show the request at all (likely because the request/response protocol was halted when the exception occured). If I configure my browser to send its requests through a diagnostic proxy tool, I can see that the request headers being sent are about 5k total. But the response takes 2-3 minutes to come. Once it does, the proxy tool shows me only response headers (no response body): === HTTP/1.1 200 OK Content-Type: text/html; charset=utf-8 Expires: Thu, 01 Jan 1970 00:00:00 GMT Set-Cookie: cookie name 1=cookie value 1 Set-Cookie: cookie name 2=cookie value 2 Set-Cookie: cookie name 3=cookie value 3 Transfer-Encoding: chunked Server: Jetty(6.1.x) === which I suppose explains why the browser renders it as an empty response. I found a clue here: http://mail-archives.apache.org/mod_mbox/geronimo-dev/200711.mbox/%3c8189103.1194033655205.javamail.j...@brutus%3e I've confirmed that if I delete the cookies from my browser and re- request... the problem does not occur for that request. In other words the problem only occurs when the browser is sending a large amount of request headers (In my case cookies it already received from a previous request to the test page). However the solution given is to switch from Jetty to Tomcat, which is not something that can be done when using GAE Java Dev server. So... does anyone know if the Jetty that's bundled with GAE Java Dev Server can be configured to use a larger buffer for the *request* headers? And if so... how? A JVM System property perhaps... passed in the WEB-INF/appengine- web.xml file? I also ran the same test/request on regular (non-Google App Engine) Jetty (v 6.1.16) and get the same observed behavior (empty response received) however the stacktrace is quite different suggesting that the problem is now with the size of the buffer used for the *response* headers: = java.lang.ArrayIndexOutOfBoundsException: 4096 at org.mortbay.io.ByteArrayBuffer.poke(ByteArrayBuffer.java: 268) at org.mortbay.io.AbstractBuffer.put(AbstractBuffer.java:456) at org.mortbay.jetty.HttpFields$Field.put(HttpFields.java: 1384) at org.mortbay.jetty.HttpGenerator.completeHeader (HttpGenerator.java:523 ) at org.mortbay.jetty.HttpConnection.commitResponse (HttpConnection.java:6 11) at org.mortbay.jetty.HttpConnection$Output.flush (HttpConnection.java:946 ) at org.mortbay.jetty.AbstractGenerator$OutputWriter.flush (AbstractGenera tor.java:733) at java.io.PrintWriter.flush(Unknown Source) = I once again configured my browser to send all its requests through my diagnostic proxy tool. The tool shows me that the response that comes from Jetty (after 2-3 minutes) is: HTTP/1.1 413 FULL head Connection: close Server: Jetty(6.1.16) The 413 Response status code means Request Entity Too Large and the HTTP spec says that the server may close the connection in that case. Once again I used my proxy tool to confirm that the size of the request headers is about 5k. In all cases it is a simple GET request so there is no request body (i.e. payload). Can't Jetty take more than 5k of request headers??? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to
Re: [appengine-java] Querying sub objects with JDOQL in GAE/J
Can you post the queries you have attempted as well as the errors?
On Tue, Nov 10, 2009 at 10:40 PM, enthusiast itzraj...@gmail.com wrote:
I have a very basic question about JDOQL with GAE/J. Hope someone can
shine light on this:
I have modeled two persistent objects Employee and ContactInfo such
that Employee contains an instance of ContactInfo, as follows:
ContactInfo.java
import com.google.appengine.api.datastore.Key;
// ... imports ...
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class ContactInfo {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private String city;
// ...
}
Employee.java
import ContactInfo;
// ... imports ...
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Employee {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private Integer salary;
@Persistent
private ContactInfo contactInfo;
Integer getSalary() {
return salary;
}
void setSalary(Integer salary) {
this.salary = salary;
}
ContactInfo getContactInfo() {
return contactInfo;
}
void setContactInfo(ContactInfo contactInfo) {
this.contactInfo = contactInfo;
}
// ...
}
I am able to create instances of Employee with relevant ContactInfo
objects. However, I am not able to query for Employee which uses a
field on the ContactInfo object. E.g. If I want to retrieve only those
employees whose salary 1 AND ContactInfo.city == New York, how
do I construct such a query?
If I just want to query on the field in the Employee object, I get the
results, but when I use a field in the sub-object of Employee (i.e.
ContactInfo) I get an error.
Any help???
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[appengine-java] Re: jdo autorefer table
Solved.
I remove the (serialized = true) from the list and add
pm.detacheCopy when I return data from the entity user.
Now it's work fine.
On Nov 16, 11:14 pm, ale aleee...@gmail.com wrote:
Hello,
I have an entity and I want to menage some contacts, so I think to
include a list of contact in the entity, the list of contats are a
list of PrimiryKey of other User.
It is all ok eccept whene I try to delete a contact. I don't receive
error, but the contact will not delete.
this is the user:
class UserDAO {
@Persistent
@PrimaryKey
private String emailKey;
@Persistent(serialized = true)
private ListString contacts; // in the list other emailKey...
}
in the business class
@Override
public void removeContact(User user, User contact) {
PersistenceManager pm = PMF.get().getPersistenceManager();
try {
UserDAO userDao = pm.getObjectById(UserDAO.class,
user.getEmailKey
());
userDao.getContacts().remove(contact.getEmailKey());
pm.makePersistent(userDao);
} finally {
pm.close();
}
}
I don't understand where is the mistake... (the similar method
addContact work fine...)
thanks!
Ale
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Re: [appengine-java] Re: case sensitivity
http://groups.google.com/group/google-appengine-java/search?group=google-appengine-javaq=lowercase+queryqt_g=Search+this+group Kris wrote: I'm more concerned about the proper way to do this generically. I can't realistically store duplicates of every string based field that I may want to search for. On Nov 16, 11:36 am, Rusty Wright rwright.li...@gmail.com wrote: The recommended approach is to store the userName in all lower case, as an additional field/column, and then do the toLowerCase on the incoming parameter user name when you do the query and use that field/column that was stored in lower case. Kris wrote: Is there any way to perform a JDO query on google app engine using a case insensitive string comparison? e.g. For example, Query query = pm.newQuery(User.class, userName.toLowerCase() == user password == pass); query.declareParameters(String user, String pass); query.setUnique(true); User user = (User) query.execute(userName.toLowerCase(), password); Of course GAE does not support the usage of toLowerCase() in the filter string. There's probably a terribly simple way to do this that I'm just not aware of. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/google-appengine-java?hl=. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
Re: [appengine-java] JDO not saved (commit) when using spring @ModelAttribute
Forgot to add; here's how I used it in my web.xml:
filter
filter-name
OpenPersistenceManagerInViewFilter
/filter-name
filter-class
org.springframework.orm.jdo.support.OpenPersistenceManagerInViewFilter
/filter-class
/filter
filter-mapping
filter-name
OpenPersistenceManagerInViewFilter
/filter-name
url-pattern/*/url-pattern
/filter-mapping
The other thing you could do is use the persistenceManager's detachCopy method
on anything you're sending out to the web view layer.
Ibrahim Hamza wrote:
Dear All
I use JDO with spring
and when i add @ModelAttribute(countries)
All things go fine except the data not saved without any exception
When query from another datastore
@Controller
public class PortController {
private static final String FORM_MODEL_KEY = ports;
private static final String FORM_UPDATE_KEY = port/Edit;
private static final String REDIRECT_LIST_VIEW_KEY = redirect:/port/
home.htm ;
@Autowired
private PortDAO portDAO;
@Autowired
private CountryDAO countryDAO;
public PortController() {}
@InitBinder
protected void initBinder(HttpServletRequest request,
ServletRequestDataBinder binder) throws Exception {
binder.registerCustomEditor(String.class, new
StringTrimmerEditor(false));
binder.registerCustomEditor
(com.xesolution.domain.Country.class, new CountryEditor(countryDAO));
}
@RequestMapping(value=/port/home.htm)
public ModelMap list() {
return new ModelMap(FORM_MODEL_KEY,portDAO.readAll());
}
@RequestMapping(value=/port/new.htm)
public ModelAndView create(){
Port port = new Port();
return new ModelAndView(FORM_UPDATE_KEY,FORM_MODEL_KEY,port);
}
@RequestMapping(value=/port/update.htm)
public ModelAndView update(@RequestParam(id) String id) {
Port result = portDAO.read(id);
return new ModelAndView(FORM_UPDATE_KEY,FORM_MODEL_KEY, result);
}
@RequestMapping(value=/port/save.htm, method = RequestMethod.POST)
public ModelAndView save(@ModelAttribute(FORM_MODEL_KEY) Port port,
BindingResult result, SessionStatus status) {
new PortValidator().validate(port, result);
if (result.hasErrors())
{
return new ModelAndView(FORM_UPDATE_KEY, FORM_MODEL_KEY,
port);
}
else
{
portDAO.persist(port);
return new ModelAndView(FORM_UPDATE_KEY, FORM_MODEL_KEY, port);
return new ModelAndView(REDIRECT_LIST_VIEW_KEY, list());
}
}
@ModelAttribute(countries)
public List? populateCountry() {
//this make data not saved
return countryDAO.readAll();
//But this make the data saved
//return portDAO.readAll();
}
public void setPortDAO(PortDAO portDAO) {
this.portDAO = portDAO;
}
}
and this is jsp line which display the form select
form:select path=country items=${countries} itemLabel=name
itemValue=id/
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[appengine-java] Ancestor queries in JPQL? / Getting Key of parameter value does not have a parent
Test app to reproduce: http://ancestortest.latest.duh-test.appspot.com/ Source code: http://ancestortest.latest.duh-test.appspot.com/src/ancestortest/AncestorTestServlet.java http://ancestortest.latest.duh-test.appspot.com/src/ancestortest/UserAccount.java http://ancestortest.latest.duh-test.appspot.com/src/ancestortest/UserAccountModification.java This sample code basically creates two UserAccount objects and attaches a UserAccountModification to one of them. Then, a query (which, unless the datastore is really slow, should return an empty list): = Query q = em.createQuery(select m from UserAccountModification m where m.modTime :newest and m.owner = :owner order by modTime desc); q.setParameter(newest, System.currentTimeMillis() - 1L); q.setParameter(owner, user1); ListUserAccountModification mods = q.getResultList(); = I get the following exception: javax.persistence.PersistenceException: SELECT FROM UserAccountModification m WHERE m.modTime :newest and m.owner = :owner ORDER BY modTime desc: Key of parameter value does not have a parent. at org.datanucleus.jpa.NucleusJPAHelper.getJPAExceptionForNucleusException (NucleusJPAHelper.java:264) at org.datanucleus.jpa.JPAQuery.getResultList(JPAQuery.java:179) at ancestortest.AncestorTestServlet.doGet(AncestorTestServlet.java: 46) I must be missing something here. The docs for GAE talk about ensuring the use of ancestor filters when inside a transaction, for instance, and there's the ANCESTOR IS operator in GQL. However, I can't seem to figure out how properly to express this in JPQL (as ANCESTOR IS is a syntax error there), and there's no docs that I can find on doing this in JPA. The query is meant to find UserAccountModification objects all residing under a given owner, which happens to be the ancestor of those objects. Is there a proper expression for this using JPQL? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
Re: [appengine-java] 500 Internal Server Error, when update appl
The problem is not fixed , i can't upload update. The happened only with my account? On Mon, Nov 16, 2009 at 11:59 PM, Ikai L (Google) ika...@google.com wrote: Have you been able to update this application? On Wed, Nov 11, 2009 at 11:53 PM, Jackroz jrozn...@gmail.com wrote: Hi Team, Last two day i can't update appl, what is wrong? Please see detail log: Unable to update: java.io.IOException: Error posting to URL: http://appengine.google.com/api/appversion/cloneblobs?app_id=aapcoreversion=2; 500 Internal Server Error Server Error (500) A server error has occurred. at com.google.appengine.tools.admin.ServerConnection.send (ServerConnection.java:143) at com.google.appengine.tools.admin.ServerConnection.post (ServerConnection.java:81) at com.google.appengine.tools.admin.AppVersionUpload.send (AppVersionUpload.java:427) at com.google.appengine.tools.admin.AppVersionUpload.cloneFiles (AppVersionUpload.java:293) at com.google.appengine.tools.admin.AppVersionUpload.beginTransaction (AppVersionUpload.java:255) at com.google.appengine.tools.admin.AppVersionUpload.doUpload (AppVersionUpload.java:98) at com.google.appengine.tools.admin.AppAdminImpl.update (AppAdminImpl.java:56) at com.google.appengine.tools.admin.AppCfg$UpdateAction.execute (AppCfg.java:521) at com.google.appengine.tools.admin.AppCfg.init(AppCfg.java:130) at com.google.appengine.tools.admin.AppCfg.init(AppCfg.java:58) at com.google.appengine.tools.admin.AppCfg.main(AppCfg.java:54) com.google.appengine.tools.admin.AdminException: Unable to update app: Error posting to URL: http://appengine.google.com/api/appversion/cloneblobs?app_id=aapcoreversion=2; 500 Internal Server Error Server Error (500) A server error has occurred. at com.google.appengine.tools.admin.AppAdminImpl.update (AppAdminImpl.java:62) at com.google.appengine.tools.admin.AppCfg$UpdateAction.execute (AppCfg.java:521) at com.google.appengine.tools.admin.AppCfg.init(AppCfg.java:130) at com.google.appengine.tools.admin.AppCfg.init(AppCfg.java:58) at com.google.appengine.tools.admin.AppCfg.main(AppCfg.java:54) Caused by: java.io.IOException: Error posting to URL: http://appengine.google.com/api/appversion/cloneblobs?app_id=aapcoreversion=2; 500 Internal Server Error Server Error (500) A server error has occurred. at com.google.appengine.tools.admin.ServerConnection.send (ServerConnection.java:143) at com.google.appengine.tools.admin.ServerConnection.post (ServerConnection.java:81) at com.google.appengine.tools.admin.AppVersionUpload.send (AppVersionUpload.java:427) at com.google.appengine.tools.admin.AppVersionUpload.cloneFiles (AppVersionUpload.java:293) at com.google.appengine.tools.admin.AppVersionUpload.beginTransaction (AppVersionUpload.java:255) at com.google.appengine.tools.admin.AppVersionUpload.doUpload (AppVersionUpload.java:98) at com.google.appengine.tools.admin.AppAdminImpl.update (AppAdminImpl.java:56) ... 4 more -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=. -- Best regards, Yakov Liskoff Mobile: 972-54-4512963 Email: jrozn...@gmail.com Web: http://www.vcomm.co.nr IM: jackobl (Skype) - The contents of this email and any attachments are confidential. It is intended for the named recipient(s) only. - -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.
[google-appengine] Python webapp framework and REST API
Hi all, We are writing an app with Python AppEngine and Closure. I am trying to follow a few articles I found on how to write your own REST services (properly). What I have gathered from reading these documents is that when using PUT or POST I should send back formed data say in XML or JSON. I am sending this as part of the POST or PUT data. The webapp framework seems to want to parse the input into name value pairs (which makes sense), how do I access this whole string from the request? Thanks for any pointers. -- The secret impresses no-one, the trick you use it for is everything - Alfred Borden (The Prestiege) -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Unable to appcfg.py update to my app
2009-11-16 17:07:09,967 ERROR appcfg.py:1235 An unexpected error occurred. Aborting. Traceback (most recent call last): File D:\gae\google\appengine\tools\appcfg.py, line 1213, in DoUpload missing_files = self.Begin() File D:\gae\google\appengine\tools\appcfg.py, line 1009, in Begin version=self.version, payload=self.config.ToYAML()) File D:\gae\google\appengine\tools\appengine_rpc.py, line 303, in Send f = self.opener.open(req) File C:\PYTHON25\LIB\urllib2.py, line 387, in open response = meth(req, response) File C:\PYTHON25\LIB\urllib2.py, line 498, in http_response 'http', request, response, code, msg, hdrs) File C:\PYTHON25\LIB\urllib2.py, line 425, in error return self._call_chain(*args) File C:\PYTHON25\LIB\urllib2.py, line 360, in _call_chain result = func(*args) File C:\PYTHON25\LIB\urllib2.py, line 506, in http_error_default raise HTTPError(req.get_full_url(), code, msg, hdrs, fp) HTTPError: HTTP Error 500: Internal Server Error Error 500: --- begin server output --- htmlhead meta http-equiv=content-type content=text/html;charset=utf-8 title500 Server Error/title /head body text=#00 bgcolor=#ff h1Error: Server Error/h1 h2The server encountered an error and could not complete your request.pIf the problem persists, please A HREF= http://code.google.com/appengine/support/ report/A your problem and mention this error message and the query that caused it./h2 h2/h2 /body/html --- end server output --- Regards Tom Wu -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: How to design data model
Unfortunately, I'm not using Python... is there a way to make this work in Java? On Nov 16, 5:38 am, niklasr nikla...@gmail.com wrote: On Nov 15, 5:48 pm, fhucho fhu...@gmail.com wrote: Hi, I am developing a web app, where users should be able to (in this order): 1) create their item type (item type can be everything - car, book, movie..., item type has some user defined parameters, like price, rating) 2) add items of their type - e.g. they can create book type (with title, author, rating parameters) and then add books 3) view, filter (at least by one parameter), delete, edit their items How should I design the data model? Is this even posible in App Engine? Thanks in advance django has impressive builtin editor for our models with djangoforms.ModelForm seen onhttp://code.google.com/appengine/articles/djangoforms.html Theoretically the create CRUD and/or factory patternhttp://en.wikipedia.org/wiki/Factory_method_pattern I recommend and use for likewise. The categoryproperty.dbhttp://code.google.com/appengine/docs/python/datastore/typesandproper... seems obvious choice which needs documention how it differs from a word. app I maintain has similar function, create item, add item, edit, view, filter by longitude latitude and/or category (www.koolbusiness.com/ai) sourced montao.googlecode.com Sincerely Nick RTZ -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Unable to appcfg.py update again !
2009-11-16 20:53:09,890 ERROR appcfg.py:1235 An unexpected error occurred. Aborting. Traceback (most recent call last): File D:\gae\google\appengine\tools\appcfg.py, line 1213, in DoUpload missing_files = self.Begin() File D:\gae\google\appengine\tools\appcfg.py, line 1009, in Begin version=self.version, payload=self.config.ToYAML()) File D:\gae\google\appengine\tools\appengine_rpc.py, line 303, in Send f = self.opener.open(req) File C:\PYTHON25\LIB\urllib2.py, line 387, in open response = meth(req, response) File C:\PYTHON25\LIB\urllib2.py, line 498, in http_response 'http', request, response, code, msg, hdrs) File C:\PYTHON25\LIB\urllib2.py, line 425, in error return self._call_chain(*args) File C:\PYTHON25\LIB\urllib2.py, line 360, in _call_chain result = func(*args) File C:\PYTHON25\LIB\urllib2.py, line 506, in http_error_default raise HTTPError(req.get_full_url(), code, msg, hdrs, fp) HTTPError: HTTP Error 500: Internal Server Error Error 500: --- begin server output --- htmlhead meta http-equiv=content-type content=text/html;charset=utf-8 title500 Server Error/title /head body text=#00 bgcolor=#ff h1Error: Server Error/h1 h2The server encountered an error and could not complete your request.pIf the problem persists, please A HREF= http://code.google.com/appengine/support/ report/A your problem and mention this error message and the query that caused it./h2 h2/h2 /body/html --- end server output --- -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Limit on image size very low
Hi, the imaging service limitation of 1MB for the maximum image size seems very low. Most cameras create bigger images by now. Any chance of increasing that limit? It would be nice if people could upload images to my app without having to go through a photo editor first. In fact avoiding the photo editor was one of the reasons I started to program the app. Unfortunately I saw the 1MB only in the midst of coding, as it is not listed together with the other quotas. Thanks! Björn -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Quota on number of entity types / kinds?
A couple of quota questions: 1) Mainly: I'm looking to develop an application that has an *unbounded* number of entity types / kinds (by using the low level Java API). Is this possible, or is there some limit to the number of entity types / kinds that an application may have? 2) Any limit on the number of entries for a single entity type / kind? Thanks, Ryan -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] ViewDoesNotExist at /join No module named atom.service
Hello, I have been trying to setup jaiku microblogging engine on appengine. I could successfully load the homepage. However, when I click on 'Join' button it is giving the below pasted error. I can furnish the complete stack trace if it would help. Please help me with this. Regards, Cage Request Method: GET Request URL:http://inchara01.appspot.com/join Exception Type: ViewDoesNotExist Exception Value: Could not import join.views. Error was: No module named atom.service Exception Location: /base/data/home/apps/ inchara01/1.337765706044725588/django.zip/django/core/urlresolvers.py in _get_callback, line 132 Python Executable: /base/ Python Version: 2.5.2 Python Path:['/base/data/home/apps/inchara01/1.337765706044725588', 'atom.zip', 'cleanliness.zip', 'oauth.zip', 'elementtree.zip', 'beautifulsoup.zip', 'simplejson.zip', 'markdown.zip', 'wsgiref.zip', 'epydoc.zip', 'django.zip', 'gdata.zip', '/base/data/home/apps/ inchara01/1.337765706044725588/django.zip', '/base/python_dist/lib/ python25.zip', '/base/python_lib/versions/third_party/django-0.96', '/ base/python_dist/lib/python2.5/', '/base/python_dist/lib/python2.5/ plat-linux2', '/base/python_dist/lib/python2.5/lib-tk', '/base/ python_dist/lib/python2.5/lib-dynload', '/base/python_lib/versions/1', '/base/data/home/apps/inchara01/1.337765706044725588/'] Server time:Sun, 15 Nov 2009 08:58:23 + -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Naked domains: why is it not supported?
I'm so disapointed with Google at the moment. I'm about to deploy a short url service to Google App Engine and find out that naked domains are not supported. I really really want to know the reason that this decision was made, is Google listening in this discussion group? Please tell us why it's not supported. Also I would like to know more about the 4 IP addresses that existing short url services (ur.ly, urlborg.com) use, the IP adresses that are used are; 216.239.32.21 216.239.34.21 216.239.36.21 216.239.38.21 I've just setup these IP Adresses, but get a The requested URL / was not found on this server error -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Naked domains: why is it not supported?
I'm so disapointed with Google at the moment. I'm about to deploy a short url service to Google App Engine and find out that naked domains are not supported. I really really want to know the reason that this decision was made, is Google listening in this discussion group? Please tell us why it's not supported. Also I would like to know more about the 4 IP addresses that existing short url services (ur.ly, urlborg.com) use, the IP adresses that are used are; 216.239.32.21 216.239.34.21 216.239.36.21 216.239.38.21 I've just setup these IP Adresses, but get a The requested URL / was not found on this server error -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Can't get owned relationship working with JDO and subclass
I'm trying to persist a simple class relationship using JDO. My code
is listed below and here's a brief overview of what I'm trying to do:
I have 3 classes:
Person, Customer (extends Person), and Address (referenced from
Person). If I create a Person instance and an Address instance and
call setAddress() on Person, then call
PersistenceManager.makePersistent(), the objects get saved correctly.
However, if I create a Customer instance and an Address instance, I
get the following error message:
java.lang.IllegalArgumentException: can't operate on multiple entity
groups in a single transaction. found both Element {
type: Customer
id: 1
}
and Element {
type: Address
id: 2
}
I am doing this from within a JDO transaction.
Here's the code:
First, the server-side code that attempts to create and persist the
objects:
---
PersistenceManager pm = PMF.get().getPersistenceManager();
Transaction txn = pm.currentTransaction();
try {
txn.begin();
Address a = new Address(15 Post Road, , Anytown,
New York,
USA, 03801);
Customer c = new Customer();
c.setAddress(a);
c.setFirstName(John);
c.setLastName(Doe);
pm.makePersistent(c);
txn.commit();
} finally {
if (txn.isActive()) {
txn.rollback();
}
pm.close();
}
Person:
---
@PersistenceCapable(identityType = IdentityType.APPLICATION)
@Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE)
public abstract class Person implements Serializable {
public static enum PERSON_KEYS {
firstName,
lastName,
workEmail,
phoneNbr
}
static final long serialVersionUID = 100L;
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
@Extension(vendorName = datanucleus, key = gae.encoded-pk,
value=true)
private String key;
private String firstName;
private String lastName;
private String middleInitial;
private String workEmail;
private String homeEmail;
private String phoneNbr;
@Persistent
private Address address = new Address();
private String salutation;
public Person() {
}
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
public String getWorkEmail() {
return (this.workEmail);
}
public void setWorkEmail(String workEmail) {
this.workEmail = workEmail;
}
public String getHomeEmail() {
return homeEmail;
}
public void setHomeEmail(String homeEmail) {
this.homeEmail = homeEmail;
}
@NotPersistent
public String getEmailAddress() {
String emailAddr = getWorkEmail();
if ((emailAddr == null) || (emailAddr.length() ==0))
emailAddr = getHomeEmail();
return emailAddr;
}
public void setEmailAddress(String emailAddress) {
setWorkEmail(emailAddress);
}
@NotPersistent
public String getFullName() {
StringBuffer sb = new StringBuffer();
if (getFirstName() != null) {
sb.append(getFirstName());
sb.append( );
}
if ((getMiddleInitial() != null)
(getMiddleInitial().length()
0)) {
sb.append(getMiddleInitial());
sb.append( );
}
if (getLastName() != null) {
sb.append(getLastName());
}
return sb.toString();
}
public String getFirstName() {
return (this.firstName);
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return (this.lastName);
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Address getAddress() {
public void setAddress(Address address) {
this.address = address;
}
public String getMiddleInitial() {
return middleInitial;
}
public void setMiddleInitial(String middleInitial) {
this.middleInitial = middleInitial;
}
public String getPhoneNbr() {
return
[google-appengine] Struggling to Upload a CSV file to AppEngine Datastore
Bear with me here. I have never used python at the *commandline* before. Ever. I have a .CSV file containing the database I would like to upload to my GAE datastore. I have followed the documentation provided, but the python shell keeps returning errors (syntax: update_data). Please can someone step me through how to import the CSV file into AppEngine. Thankyou for any help you can give, which - I promise - is greatly appreciated. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: Upload data to development server
Next worked for me: - removing the line login:admin from app.yaml - Updating app cofig: appcfg.py update [app-id] - (Re)starting local server: appserver [app-id] - Upload data: appcfg.py upload_data --config_file=album_loader.py --filename album_data.csv --kind Album --url=http://localhost:8080/remote_api ../ [app-id] When ask for mail and password type anything -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: Problem with SMS verification
Hi Ikai, I added myself to the waitlist. Do you know how long it takes to hear back? I'm going to be participating in a Google Wave hackathon on Saturday (Nov. 21) and was hoping to be able to deploy at least one robot to App Engine. Thanks, Matt On Nov 11, 1:33 pm, Ikai L (Google) ika...@google.com wrote: Barna, If you are having issues with SMS, you can add yourself to the verification waitlist: http://appengine.google.com/waitlist/sms_issues On Wed, Nov 11, 2009 at 5:36 AM, barnix2001 barnix2...@gmail.com wrote: Hi, I am also having problems with SMS account verification. Best regards, Barna Otvos barnix2...@gmail.com -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: Possible to download code once uploaded?
You should look into Git or Subversion or Sourcesafe or CVS or some other revision control systems. On Nov 9, 3:34 am, Martin Shaw mshaw1...@googlemail.com wrote: Hi, After I have uploaded my code for my appengine, by using the appcfg.py update myapp/ command, is it then possible to download the myapp/ directory? I work on projects from several locations and it is a hassle to send my project to myself every time i want to work on it. Thanks in advance, Martin Shaw -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Can I be the owner-proprietary but not the person who pay?
Hi all? I'm just wandering if exist a way that someone pay my the rent of the App Engine but I keep the ownership of the application. I mean, somebody pay, but I have full control so when I want change the person who is paying or pay my selft, no problem. Cheers Frank Abel -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
Re: [google-appengine] Limit on image size very low
I haven't used the Image api.. but.. do you mean the limit of 1MB for storing entities in the Datastore? Or, does it just throw errors if you try to manipulate an image in memory that is over 1MB? If you're just trying to get a 1MB image into the datastore, you could break it up into 1mb chunks before sticking it in the datastore. On Sun, Nov 15, 2009 at 8:58 PM, Bjoern bjoer...@googlemail.com wrote: Hi, the imaging service limitation of 1MB for the maximum image size seems very low. Most cameras create bigger images by now. Any chance of increasing that limit? It would be nice if people could upload images to my app without having to go through a photo editor first. In fact avoiding the photo editor was one of the reasons I started to program the app. Unfortunately I saw the 1MB only in the midst of coding, as it is not listed together with the other quotas. Thanks! Björn -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
Re: [google-appengine] Python webapp framework and REST API
POST PUT data is in request body: http://code.google.com/intl/en/appengine/docs/python/tools/webapp/requestclass.html#Request_body 2009/11/16 Devraj Mukherjee dev...@gmail.com: Hi all, We are writing an app with Python AppEngine and Closure. I am trying to follow a few articles I found on how to write your own REST services (properly). What I have gathered from reading these documents is that when using PUT or POST I should send back formed data say in XML or JSON. I am sending this as part of the POST or PUT data. The webapp framework seems to want to parse the input into name value pairs (which makes sense), how do I access this whole string from the request? Thanks for any pointers. -- The secret impresses no-one, the trick you use it for is everything - Alfred Borden (The Prestiege) -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
Re: [google-appengine] Panama App Engine Developers Shut Out?
It looks like Panama is not in the list of supported carriers: http://code.google.com/appengine/kb/supported_carriers.html If you required SMS verification, please add yourself to the SMS waitlist here: https://appengine.google.com/waitlist/sms_issues. We'll go through this and enable you manually. Ikai On Fri, Nov 13, 2009 at 5:42 AM, Dunster gregory.corco...@gmail.com wrote: Hi, I was very excited about Google App Engine but I could not verify my account because I live in Panama and its not supported for verification. We have the +507 country code here. There are four main cell phone providers: Cable Wireless Movistar Digicel Clarocom Can somebody at Google please enable this country? Thanks, Dunster -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: Struggling to Upload a CSV file to AppEngine Datastore
what was the exact error or symptom? i'm reluctant to repeat the how- to guide. http://code.google.com/appengine/docs/python/tools/uploadingdata.html i've uploaded bulk elements via csv multiple times and the instructions worked perfectly. the sections you actually have to implement are: 1. setting up remote_api 2. creating loader classes 3. preparing your data then issue the following from the command line... appcfg.py upload_data --config_file=your loader script from step 2.py --filename=your CSV file.csv --kind=your db.Model class name app-directory On Nov 16, 11:43 am, Benjamin Mayo wondersofthebr...@googlemail.com wrote: Bear with me here. I have never used python at the *commandline* before. Ever. I have a .CSV file containing the database I would like to upload to my GAE datastore. I have followed the documentation provided, but the python shell keeps returning errors (syntax: update_data). Please can someone step me through how to import the CSV file into AppEngine. Thankyou for any help you can give, which - I promise - is greatly appreciated. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: property value is not multi-line
On Nov 16, 9:00 am, SivaTumma sivatu...@gmail.com wrote: You need to declare the property 'url_title' in your model class like this: url_property = db.StringProperty(multiline=True) It indicates that a multilne string ( when copied and pasted from html pages, it happens some times. ) should also be stored in the datastore. Thanks, for you reply SivaTumma. It helped. Guri On Nov 14, 9:00 am, Guri sgurmin...@gmail.com wrote: Hi, I am using Beautiful soupwww.crummy.com/software/BeautifulSoupto fetch title of a url and storing it in datastore as StringProperty . It works with most of them but likewww.code.google.com/itthrows an exception while storing in datastore. Exception BadValueError: Property value url_title is not multilne Any pointers please. Thanks, Guri -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: Problem with SMS verification
Hi Ikai, I'm not sure if you helped expedite the process, but I've now been manually verified. If you did help it along, thanks very much! Thanks, Matt On Nov 16, 12:08 pm, Matt Passell mpass...@grovehillsoftware.com wrote: Hi Ikai, I added myself to the waitlist. Do you know how long it takes to hear back? I'm going to be participating in a Google Wave hackathon on Saturday (Nov. 21) and was hoping to be able to deploy at least one robot to App Engine. Thanks, Matt On Nov 11, 1:33 pm, Ikai L (Google) ika...@google.com wrote: Barna, If you are having issues withSMS, you can add yourself to the verification waitlist: http://appengine.google.com/waitlist/sms_issues On Wed, Nov 11, 2009 at 5:36 AM, barnix2001 barnix2...@gmail.com wrote: Hi, I am also having problems withSMSaccount verification. Best regards, Barna Otvos barnix2...@gmail.com -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
Re: [google-appengine] ApiProxy$UnknownException
Lucian, what environment are you getting this in? I'm assuming this is on your development machine. Can you post your OS, Java and SDK versions? On Thu, Nov 12, 2009 at 6:10 AM, Lucian Baciu lucianba...@gmail.com wrote: I keep getting this error: com.google.apphosting.api.ApiProxy$UnknownException: An error occurred for the API request datastore_v3.RunQuery(). at com.google.apphosting.runtime.ApiProxyImpl.doSyncCall (ApiProxyImpl.java:198) at com.google.apphosting.runtime.ApiProxyImpl.access$000 (ApiProxyImpl.java:37) at com.google.apphosting.runtime.ApiProxyImpl$1.run(ApiProxyImpl.java: 75) at com.google.apphosting.runtime.ApiProxyImpl$1.run(ApiProxyImpl.java: 71) at java.security.AccessController.doPrivileged(Native Method) at com.google.apphosting.runtime.ApiProxyImpl.makeSyncCall (ApiProxyImpl.java:71) at com.google.apphosting.runtime.ApiProxyImpl.makeSyncCall (ApiProxyImpl.java:37) at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:79) at com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall (DatastoreApiHelper.java:52) at com.google.appengine.api.datastore.DatastoreServiceImpl $PreparedQueryImpl.runQuery(DatastoreServiceImpl.java:346) at com.google.appengine.api.datastore.DatastoreServiceImpl $PreparedQueryImpl.access$100(DatastoreServiceImpl.java:272) at com.google.appengine.api.datastore.DatastoreServiceImpl $PreparedQueryImpl$1.iterator(DatastoreServiceImpl.java:306) at org.datanucleus.store.appengine.DatastoreElementContainerStoreSpecialization.getChildren (DatastoreElementContainerStoreSpecialization.java:99) at org.datanucleus.store.appengine.DatastoreFKListStore.listIterator (DatastoreFKListStore.java:47) at org.datanucleus.store.mapped.scostore.AbstractListStore.listIterator (AbstractListStore.java:84) at org.datanucleus.store.mapped.scostore.AbstractListStore.iterator (AbstractListStore.java:74) at org.datanucleus.sco.backed.List.loadFromStore(List.java:241) at org.datanucleus.sco.backed.List.toArray(List.java:591) at org.datanucleus.store.mapped.mapping.CollectionMapping.postInsert (CollectionMapping.java:106) at org.datanucleus.store.appengine.DatastoreRelationFieldManager.runPostInsertMappingCallbacks (DatastoreRelationFieldManager.java:225) at org.datanucleus.store.appengine.DatastoreRelationFieldManager.access $300(DatastoreRelationFieldManager.java:49) at org.datanucleus.store.appengine.DatastoreRelationFieldManager $1.apply(DatastoreRelationFieldManager.java:112) at org.datanucleus.store.appengine.DatastoreRelationFieldManager.storeRelations (DatastoreRelationFieldManager.java:80) at org.datanucleus.store.appengine.DatastoreFieldManager.storeRelations (DatastoreFieldManager.java:795) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPostProcess (DatastorePersistenceHandler.java:288) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects (DatastorePersistenceHandler.java:241) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObject (DatastorePersistenceHandler.java:225) at org.datanucleus.state.JDOStateManagerImpl.internalMakePersistent (JDOStateManagerImpl.java:3185) at org.datanucleus.state.JDOStateManagerImpl.makePersistent (JDOStateManagerImpl.java:3161) at org.datanucleus.ObjectManagerImpl.persistObjectInternal (ObjectManagerImpl.java:1298) at org.datanucleus.ObjectManagerImpl.persistObject (ObjectManagerImpl.java:1175) at org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent (JDOPersistenceManager.java:669) at org.datanucleus.jdo.JDOPersistenceManager.makePersistent (JDOPersistenceManager.java:694) at com.timetonote.server.services.ContactsServiceImpl.addPerson (ContactsServiceImpl.java:254) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.google.apphosting.runtime.security.shared.intercept.java.lang.reflect.Method_ $3.run(Method_.java:164) at java.security.AccessController.doPrivileged(Native Method) at com.google.apphosting.runtime.security.shared.intercept.java.lang.reflect.Method_.privilegedInvoke (Method_.java:162) at com.google.apphosting.runtime.security.shared.intercept.java.lang.reflect.Method_.invoke_ (Method_.java:131) at com.google.apphosting.runtime.security.shared.intercept.java.lang.reflect.Method_.invoke (Method_.java:40) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse (RPC.java:527) at
Re: [google-appengine] Re: Application Timeouts - More than usual
Arun, Which actions are triggering the DeadlineExceededError? What are you trying to do in these actions? On Fri, Nov 13, 2009 at 5:43 AM, Arun Shanker Prasad arunshankerpra...@gmail.com wrote: Hi Ikai, I had replied with the application id. I am still getting these errors at random, were you able to have a look. class 'google.appengine.runtime.DeadlineExceededError' Thanks, Arun Shanker Prasad. On Nov 11, 3:52 am, Ikai L (Google) ika...@google.com wrote: Arun, Are you still seeing these issues? Please let us know your application ID if you are. On Mon, Nov 9, 2009 at 7:30 AM, Arun Shanker Prasad arunshankerpra...@gmail.com wrote: Hi, My application seems to be throwing a lot of DeadLine exceeded errors this morning. There was no changes uploaded. This seems to have cropped up suddenly this morning. Anyone else facing this? Or is it just me? Thanks, Arun Shanker Prasad. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
Re: [google-appengine] Keyword search in TextProperty
There are a few projects that do this. Here's one on Github called Whoosh: http://github.com/tallstreet/Whoosh-AppEngine There's also an open ticket for this under our issue tracker. You'll want to star this so that we can prioritize it for a future release: http://code.google.com/p/googleappengine/issues/detail?id=217 On Mon, Nov 16, 2009 at 2:56 PM, bvelasquez bvelasq...@gmail.com wrote: Hello, I have an existing TextProperty, and I would like to implement keyword search. Can anyone suggest a method or point me to an article on the best way to achieve this using GAE. Thanks in advance. Barry -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
Re: [google-appengine] Re: Only ancestor queries are allowed inside transactions
Thanks Eli. Your solution solves one issue. But ideally, I want the 2nd concurrent request, after waiting, pick up the next item in queue and process, without complicating the code. After all, that's what a transaction is designed for. Reading another post, it seems one has to create a dummy parent entity for those entities you want to query in a transaction. What I'm looking for is a guide with good examples for querying (otherwise) root entities in a transaction. Will On Sun, Nov 15, 2009 at 1:57 PM, Eli Jones eli.jo...@gmail.com wrote: Nevermind, I see what you mean. So you want a lock on the entity once you know it exists (and satisfies your where clause). ..since something might have come along and updated the p1 column from None to Something before your transaction began.. and thus the key would refer to an entity that does not satisfy your where clause anymore. If you were willing to let whoever got to it first to update the p1 column.. you could have your transaction verify that p1 was still None once it got the entity inside of the transaction. If p1 had changed.. then just do nothing since another transaction already won the race. I think that would work just the same. Because, assume you have two processes looking for an entity where p1 = None and p2 = Today.. and they each really, really want to update p1 to some value. One of the processes must win in your scenario.. you just don't want the other one to re-update the entity since it has already been updated.. and p1 None. Now, you still need the transaction of course.. but just add a check after grabbing the entity to verify that p1 = None before doing any updates. On Sun, Nov 15, 2009 at 12:20 AM, Eli Jones eli.jo...@gmail.com wrote: you should read the section here: http://code.google.com/appengine/docs/python/datastore/functions.html#run_in_transaction where they show an example of iterating a counter in a transaction. If you don't already know the key for the object... then you sort of need to get it to run your transaction. In the decrement example, they grab the entity first so that they can send the entity key to the decrement function. Now, if you want to modify their decrement function to see if it works by getting the key inside of the transaction.. then just try that.. it's only a few lines of code. On Sat, Nov 14, 2009 at 10:29 PM, Will vocalster@gmail.com wrote: I want to find that particular entity, change it and save it back. When one request is doing this, I don't want another request pick up the same entity and modify it again. In short, I want the 'seek-change-save' to be serialized, as one reason the GAE transaction is designed for. Finding out the key of the entity first out of a transaction and then using the key inside the transaction defeats the purpose. Will On Sat, Nov 14, 2009 at 1:24 PM, 风笑雪 kea...@gmail.com wrote: Why you need a transaction to update just one entity? Just save it and you may get an exception when update failed. BTW, DateTimeProperty has an parameter auto_now, you can use it to automatic update its time by datastore. And if you really want a transaction, you need fetch it before start the transaction: item = C1.gql(WHERE p1 = :a AND p2 :b ORDER BY p2, a = None, b = today).get() if item: key = item.key() def update_time(key) item = C1.get(key) if item: item.p1 = now item.put() db.run_in_transaction(update_time, key) 2009/11/14 Will vocalster@gmail.com: Yes, I've read the document. I'm looking for some examples. As I said, I have a class, C1, whose entities have no ancestors. I want to query a particular entity from it, modify, and put it back, for example, item = C1.gql(WHERE p1 = :a AND p2 :b ORDER BY p2, a = None, b = today).fetch(1) item.p1 = now item.put() Both p1 and p2 are datetime. How can I build this into a transaction? Is there a way I can give the entities a 'place holder' ancestor so I can later use an 'ancestor filter' in the query to satisfy the requirement? Thanks, Will On Fri, Nov 13, 2009 at 9:44 PM, Stephen sdea...@gmail.com wrote: On Nov 13, 2:27 am, Will vocalster@gmail.com wrote: Can you give me some examples of 'ancestor queries'? If possible, I'd like to change the existing ones into 'ancestor queries' and fit the whole into a transaction, because that is exactly what a transaction designed for. http://code.google.com/appengine/docs/python/datastore/transactions.html#What_Can_Be_Done_In_a_Transaction -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at
[google-appengine] Re: Is it possible to obtain list of all users or groups of Google Apps domain?
Hi,Wooble! Thanks a lot for teaching! Sincerely. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
