[DBUTILS] BeanHandler plus Blob
Hi,
have a class
public class Person {
private Blob image;
public void setImage(Blob image) { this.image = image; }
public Blob getImage() { return image; }
}
Now I want to load the Person-class with BeanHandler-class
ResultSetHandlerPerson h = new BeanHandlerPerson(Person.class);
Person person = runner.query(select image from ..., h);
Works so far :-) Now what not works:
person.getImage();
ObjectInputStream ois = null;
ois = new ObjectInputStream(blob.getBinaryStream());
ImageIcon icon = (ImageIcon) ois.readObject();
- Exception
You cannot invoke other java.sql.Clob/java.sql.Blob methods after calling
the free() method or after the Blob/Clob's transaction has been committed
or rolled back.
Do the query myself, or and write a own BeanHandler...
But shouldn't there a solution to just say
1.) write blob data in a stream x
2.) write blob data to an object x
OR ... go the other way, means change Person class to have an object let's
say instead Blob and ImageIcon and tell dbutils how to map from blob to
ImageIcon...
thanks for any response in advance ;)
greetings manuel
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Re: when use FTPClient to do server to server file transfer's append failed
On 15 October 2010 02:00, chenxuejie chen_xue...@nec.cn wrote:
Hi all
The action is server to which the client is connected to append to a given
file on the other server
The result is the new file replaced the remote file.
I think FTPClient.java should change as follows:
public boolean remoteAppend(String filename) throws IOException
{
if (__dataConnectionMode == ACTIVE_REMOTE_DATA_CONNECTION_MODE ||
__dataConnectionMode == PASSIVE_REMOTE_DATA_CONNECTION_MODE)
// return FTPReply.isPositivePreliminary(stor(filename));
return FTPReply.isPositivePreliminary(appe(filename));
return false;
}
thanks
Thanks for the report; the code will be changed as you suggest.
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Re: when use FTPClient to do server to server file transfer's append failed
On 15 October 2010 09:53, sebb seb...@gmail.com wrote:
On 15 October 2010 02:00, chenxuejie chen_xue...@nec.cn wrote:
Hi all
The action is server to which the client is connected to append to a given
file on the other server
The result is the new file replaced the remote file.
I think FTPClient.java should change as follows:
public boolean remoteAppend(String filename) throws IOException
{
if (__dataConnectionMode == ACTIVE_REMOTE_DATA_CONNECTION_MODE ||
__dataConnectionMode == PASSIVE_REMOTE_DATA_CONNECTION_MODE)
// return FTPReply.isPositivePreliminary(stor(filename));
return FTPReply.isPositivePreliminary(appe(filename));
return false;
}
thanks
Thanks for the report; the code will be changed as you suggest.
I created the following JIRA issue to track this:
https://issues.apache.org/jira/browse/NET-341
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RE: How can I get Commons-net-2.1 Source and Binaries
陳雪傑 wrote: Hi Jörg You cannot, since it was never officially released. So, yes, there is a tag in Subversion, but nobody knows, who spread it into public, what it actually contains and you're on your own using this code. Therefore you cannot download any binaries or tar balls, it has no direct support here. Actually you should use version 2.0 until we release the next version which will be 2.2. Do you know the version 2.2 release date? No, sorry. Does 2.0 not work for you? - Jörg - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
Commons Upload: Can not read parameters if input type file is empty ...
Hello developers,
i try to use the upload function. I use a form with a text Field, a
Textare and some checkoxs and an input Type of file. If write somthing in
these fields and choose a file to upload the behavior is good. The Upload
will be executed. When i write only somthing to the other input elements
(file choose is empty) I get an exception like this:
Processing of multipart/form-data request failed. Stream ended
unexpectedly
This happens only if no file is choosen. Only the values of the other
fields will be submitted. This Part of code throw the exception.
items = upload.parseRequest(request);
Perhaps i make somthing wrong ...
Perhaps it is a bug
I don't now
Best regards
Michael Laube
Source of the form:
form action=/xxx/CentralControl method=post class=admin enctype=
multipart/form-data
fieldset class=admin
legendNews/legend
label class=adminUuml;berschrift:/label
input type=text name=ueberschrift value=
${hN.ueberschrift} size=68/br/
label class=adminInhalt/label
textarea class=admin name=neuigkeit rows=30
cols=60${hN.text_aktuelles}/textarea
label class=adminDatei hochladen:/label
INPUT name=userfile1 type=file/
label class=adminPublizieren/label
%if(hN.getVeroeffentlich_status()!=null){ %
input type=checkbox class=admin name=
publizieren value=1 checked=checked/br/
%}
else{
%
input type=checkbox class=admin name=
publizieren value=1 /br/
%} %
label class=adminNews Bw /label
%if(hN.getNewsbw()!=null){ %
input type=checkbox class=admin name=newsbw
value=1 checked=checked/
%}
else{
%
input type=checkbox class=admin name=newsbw
value=1/
%} %
label class=adminNews UAN/label
%if(hN.getNewsuan()!=null){ %
input type=checkbox class=admin name=
newsuan value=1 checked=checked/
%}else{ %
input type=checkbox class=admin name=
newsuan value=1/
%} %
label class=adminLöschkennzeichen: /label
%if(hN.getLoeschkennzeichen()!=null){ %
input type=checkbox class=admin name=
loeschkennzeichen value=1 checked=checked/
%}else{ %
input type=checkbox class=admin name=
loeschkennzeichen value=1 /
%} %
label class=adminE-Mail Nachricht: /label
input type=checkbox class=admin name=
newsuansendmail value=1/
input type=hidden name=hiddenNewsId value=
${hN.id} /
/fieldset
fieldset class=button
input type=hidden name=servletName value=
saveNews/
input type=hidden name=jsessionid value=%=
session.getId()%/
input type=submit name=sendIt value=
Speichern/
/fieldset
/form
Source of Servlet Logic:
System.out.println(Multi Form Data Parameter auslesen ---:);
PrintWriter pw = response.getWriter();
String n=;String v=;
FileItemFactory factory = new
DiskFileItemFactory();
ServletFileUpload upload = new
ServletFileUpload(factory);
upload.setFileSizeMax(5000);
upload.setSizeMax(-1);
List items = null;
try {
items = upload.parseRequest(request);
}
catch (FileUploadException e) {
System.out.println(e.getMessage());
System.out.println(Exception:-)
-);
}
if(items!=null){
System.out.println(Nach Try Upload ...
---);
Iterator itr = items.iterator();
while (itr.hasNext()) {
FileItem item = (FileItem) itr.next();
if (item.isFormField()){
n=item.getFieldName();
Re: [Math] Exponential curve fitting problem
Thanks for the provided info! If I understand it correctly, then in order to apply the least square method for regression analysis the data should be mapped to a linear model in order to get better results? Converting the data to ln y indeed gives better results, but is still not a perfect fit like I have for instance with polynomial functions. Are there other methods available for curve fitting which don't have this requirement? regards, Christiaan -- View this message in context: http://apache-commons.680414.n4.nabble.com/Math-Exponential-curve-fitting-problem-tp2995629p2996928.html Sent from the Commons - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
Re: Commons Upload: Can not read parameters if input type file is empty ...
Before you call parseRequest I would first check to make sure you're
dealing with a multipart post - in cases when you're not uploading a
file calling parseRequest may not be the right way to go and that
exception being thrown is FileUpload's way of telling you, hey I don't
see any file data to handle thus the Stream ended unexpectedly.
That's my best guess. Try something like this
// Check that we have a file upload request
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
if (isMultipart) {
// do your parseRequest here since you know they uploaded a file
} else {
// no file uploaded this time, try retrieving non-file form
parameter values old fashioned way, request.getParameter(foo) etc...
}
// operate on retrieved form data here
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Re: Commons Upload: Can not read parameters if input type file is empty ...
The code and HTML look good. I've gotten that message a number of times and
what it generally means is that the request body isn't properly formatted. More
specifically, when the MultipartStream is asking the underlying stream (in this
case the ServletInputStream) for more bytes it returns -1 signifying the end of
the body.
Is anything else touching the InputStream before your code does? That could
cause issues.
Another thing I would try is to read in the request body and output to stdout.
This will help you determine if it looks like properly formatted multipart
body. You could also post that output to the list and we can take a look as
well.
-bp
On Oct 15, 2010, at 4:38 AM, michael.la...@hilgmbh.de wrote:
Hello developers,
i try to use the upload function. I use a form with a text Field, a
Textare and some checkoxs and an input Type of file. If write somthing in
these fields and choose a file to upload the behavior is good. The Upload
will be executed. When i write only somthing to the other input elements
(file choose is empty) I get an exception like this:
Processing of multipart/form-data request failed. Stream ended
unexpectedly
This happens only if no file is choosen. Only the values of the other
fields will be submitted. This Part of code throw the exception.
items = upload.parseRequest(request);
Perhaps i make somthing wrong ...
Perhaps it is a bug
I don't now
Best regards
Michael Laube
Source of the form:
form action=/xxx/CentralControl method=post class=admin enctype=
multipart/form-data
fieldset class=admin
legendNews/legend
label class=adminUuml;berschrift:/label
input type=text name=ueberschrift value=
${hN.ueberschrift} size=68/br/
label class=adminInhalt/label
textarea class=admin name=neuigkeit rows=30
cols=60${hN.text_aktuelles}/textarea
label class=adminDatei hochladen:/label
INPUT name=userfile1 type=file/
label class=adminPublizieren/label
%if(hN.getVeroeffentlich_status()!=null){ %
input type=checkbox class=admin name=
publizieren value=1 checked=checked/br/
%}
else{
%
input type=checkbox class=admin name=
publizieren value=1 /br/
%} %
label class=adminNews Bw /label
%if(hN.getNewsbw()!=null){ %
input type=checkbox class=admin name=newsbw
value=1 checked=checked/
%}
else{
%
input type=checkbox class=admin name=newsbw
value=1/
%} %
label class=adminNews UAN/label
%if(hN.getNewsuan()!=null){ %
input type=checkbox class=admin name=
newsuan value=1 checked=checked/
%}else{ %
input type=checkbox class=admin name=
newsuan value=1/
%} %
label class=adminLöschkennzeichen: /label
%if(hN.getLoeschkennzeichen()!=null){ %
input type=checkbox class=admin name=
loeschkennzeichen value=1 checked=checked/
%}else{ %
input type=checkbox class=admin name=
loeschkennzeichen value=1 /
%} %
label class=adminE-Mail Nachricht: /label
input type=checkbox class=admin name=
newsuansendmail value=1/
input type=hidden name=hiddenNewsId value=
${hN.id} /
/fieldset
fieldset class=button
input type=hidden name=servletName value=
saveNews/
input type=hidden name=jsessionid value=%=
session.getId()%/
input type=submit name=sendIt value=
Speichern/
/fieldset
/form
Source of Servlet Logic:
System.out.println(Multi Form Data Parameter auslesen ---:);
PrintWriter pw = response.getWriter();
String n=;String v=;
FileItemFactory factory = new
DiskFileItemFactory();
ServletFileUpload upload = new
ServletFileUpload(factory);
upload.setFileSizeMax(5000);
upload.setSizeMax(-1);
List items = null;
try {
items =
[configuration] ini files containing only a global section supported by HierarchicalINIConfiguration?
Are ini files containing only a global section allowed to be used with commons
configuration, especially the HierachicalINIConfiguration class?
I found no advice in the javadocs that ini files should contain more than just
a global section but it seems HierachicalINIConfiguration can read those files
just fine but is not able to save them.
This is due to HierachicalINIConfiguration#getSections() can't really deal with
those files.
The current code:
Set sections = new ListOrderedSet();
boolean globalSection = false;
for (Iterator it = getRootNode().getChildren().iterator();
it.hasNext();)
{
ConfigurationNode node = (ConfigurationNode) it.next();
if (isSectionNode(node))
{
if (globalSection)
{
sections.add(null);
globalSection = false;
}
sections.add(node.getName());
}
else
{
globalSection = true;
}
}
return sections;
This code only acknowledges a global section when at least one other named
section is present.
HierachicalINIConfiguration#save() call this functions and only saves sections
returned by getSections() so if there is only a global section and no other
sections nothing gets saved.
Is this on purpose or could getSections() be changed to something like this?:
Set sections = new ListOrderedSet();
for (Iterator it = getRootNode().getChildren().iterator();
it.hasNext();)
{
ConfigurationNode node = (ConfigurationNode) it.next();
if (isSectionNode(node))
{
sections.add(node.getName());
}
else
{
sections.add(null);
}
}
return sections;
--
André WeiheZengel Medizintechnik GmbH
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Re: [configuration] ini files containing only a global section supported by HierarchicalINIConfiguration?
Hi Andre,
Am 15.10.2010 17:49, schrieb Andre Weihe:
Are ini files containing only a global section allowed to be used with commons
configuration, especially the HierachicalINIConfiguration class?
I found no advice in the javadocs that ini files should contain more than just
a global section but it seems HierachicalINIConfiguration can read those files
just fine but is not able to save them.
This is due to HierachicalINIConfiguration#getSections() can't really deal with
those files.
The current code:
Set sections = new ListOrderedSet();
boolean globalSection = false;
for (Iterator it = getRootNode().getChildren().iterator();
it.hasNext();)
{
ConfigurationNode node = (ConfigurationNode) it.next();
if (isSectionNode(node))
{
if (globalSection)
{
sections.add(null);
globalSection = false;
}
sections.add(node.getName());
}
else
{
globalSection = true;
}
}
return sections;
This code only acknowledges a global section when at least one other named
section is present.
HierachicalINIConfiguration#save() call this functions and only saves sections
returned by getSections() so if there is only a global section and no other
sections nothing gets saved.
Is this on purpose or could getSections() be changed to something like this?:
Set sections = new ListOrderedSet();
for (Iterator it = getRootNode().getChildren().iterator();
it.hasNext();)
{
ConfigurationNode node = (ConfigurationNode) it.next();
if (isSectionNode(node))
{
sections.add(node.getName());
}
else
{
sections.add(null);
}
}
return sections;
This behavior is surely not by intention. With other words: it is a bug.
Could you please file a bug report in our tracking system [1], so that
this issue won't get lost.
Thanks.
Oliver
[1] http://commons.apache.org/configuration/issue-tracking.html
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AW: [configuration] ini files containing only a global section supported by HierarchicalINIConfiguration?
Von: Oliver Heger [mailto:oliver.he...@oliver-heger.de] [Description of current behaviour and proposed fix] This behavior is surely not by intention. With other words: it is a bug. Could you please file a bug report in our tracking system [1], so that this issue won't get lost. Filed as https://issues.apache.org/jira/browse/CONFIGURATION-424 Set priority to Critical because of the potential data loss. The bug is AFAIK still present in the HEAD version in the SVN as I checked some hours before but I don't know since when it's present. https://issues.apache.org/jira/browse/CONFIGURATION-325 reports a similar bug in the deprecated INIConfiguration that was supposed to be fixed in the HierarchicalINIConfiguration so I guess this is when the bug crept in. -- André WeiheZengel Medizintechnik GmbH - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
Re: [DBUTILS] BeanHandler plus Blob
Hi,
just if some else have similar problem... found the solution myself.
Overwrite BeanProcessor
public class MyBeanProcessor extends BeanProcessor {
@Override
rotected Object processColumn(ResultSet rs, int index, Class?
propType) throws SQLException {
if (propType.equals(ImageIcon.class)) {
return getImageIcon(rs.getBlob(index));
}
return super.processColumn(rs, index, propType);
}
}
Create ResultSetHandler like that:
ResultSetHandlerPerson h = new BeanHandlerPerson(Person.class, new
BasicRowProcessor(new MyBeanProcessor()));
That would do the job, now you can map a blob to an ImageIcon.
You can implement other special type the same way!
Greetings Manuel
Am Fr, 15.10.2010, 09:06 schrieb Manuel:
Hi,
have a class
public class Person {
private Blob image;
public void setImage(Blob image) { this.image = image; }
public Blob getImage() { return image; }
}
Now I want to load the Person-class with BeanHandler-class
ResultSetHandlerPerson h = new BeanHandlerPerson(Person.class);
Person person = runner.query(select image from ..., h);
Works so far :-) Now what not works:
person.getImage();
ObjectInputStream ois = null;
ois = new ObjectInputStream(blob.getBinaryStream());
ImageIcon icon = (ImageIcon) ois.readObject();
- Exception
You cannot invoke other java.sql.Clob/java.sql.Blob methods after calling
the free() method or after the Blob/Clob's transaction has been committed
or rolled back.
Do the query myself, or and write a own BeanHandler...
But shouldn't there a solution to just say
1.) write blob data in a stream x
2.) write blob data to an object x
OR ... go the other way, means change Person class to have an object let's
say instead Blob and ImageIcon and tell dbutils how to map from blob to
ImageIcon...
thanks for any response in advance ;)
greetings manuel
-
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