Re: Ajax Servlet Deployment
If you are aren't on a recent version of Wonder, you need to be for this to
work - Ajax in servlet. Probably fixed about a year ago.
On Tue, May 19, 2015 at 4:14 PM Kevin Hinkson k...@coralstone.co wrote:
Hi,
I am attempting to deploy a web page where the page uses an
AjaxFlexibleFileUpload component. This works in the development setup.
However, once the page with the AjaxFlexibleFileUpload loads on the server
the two XHRs that run come back with 200 responses but they are completely
empty of content. This results in no file dialog appearing when a user
attempts to select an image for upload.
The errors that show in the browser JS console are
JSONRpcClientException: error parsing result”, ReferenceError: Can't find
variable: jsonrpc_0 and ReferenceError: Can't find variable: jsonrpc_1.
My local development setup is a (reverse) proxy through NGINX. The
deployment is to a AWS Elastic Beanstalk, in Tomcat 7, Java 7 which uses
Apache as a reverse proxy.
I’ll admit I know very little about WebObjects and Ajax. It is not clear
to me that I have all the correct steps for using Ajax components. One
thing I did was to override pageWithName in the Application class.
@Override
public WOComponent pageWithName(String name, WOContext context)
{
log.error(application pageWithName + name + + context);
WOComponent page = super.pageWithName(name, context);
log.error(got page + page);
return page;
}
I noticed that when run locally there is nothing in the logs for the XHR
requests because they load fine. However, when deployed to a Beanstalk
instance I get the following.
ERROR 20:32:35 (com.adnero.finance.web.Application:?) -application
pageWithName null er.extensions.appserver.ERXWOServletContext contextID=0
requestSenderID=0.17.1.1.1.0.1 elementID=null
sessionID=GpMB9KKAiBu1Rdv4MqVNu0
request=er.extensions.appserver.ERXRequest
(er.extensions.appserver.ERXRequest httpVersion=HTTP/1.0
headers={accept=[*/*], accept-encoding=[gzip, deflate],
accept-language=[en-us], connection=[Keep-Alive], content-length=[50],
content-type=[text/plain],
cookie=[JSESSIONID=727EEEFD467421EFD51BB2A65A0707BF], dnt=[1],
host=[replaced.host.url], origin=[http://replaced.host.url], referer=[
http://replaced.host.url/WebObjects/AdneroWeb.woa/wo/0.0.0.17.1],
remote_addr=[104.200.104.189], user-agent=[Mozilla/5.0 (Macintosh; Intel
Mac OS X 10_10_3) AppleWebKit/600.6.3 (KHTML, like Gecko) Version/8.0.6
Safari/600.6.3], x-forwarded-host=[replaced.host.url],
x-forwarded-server=[ip-172-31-26-217.ec2.internal],
x-requested-with=[XMLHttpRequest], x-webobjects-adaptor-version=[5.2],
x-webobjects-servlet-server-name=[replaced.host.url],
x-webobjects-servlet-server-port=[80]} content-length=50 cookies=null
userInfo={ServletConfig=org.apache.catalina.core.StandardWrapperFacade@7f127e0,
ServletContext=org.apache.catalina.core.ApplicationContextFacade@6970e732,
HttpServletRequest=org.apache.catalina.connector.RequestFacade@2b18fb03,
HttpServletResponse=org.apache.catalina.connector.ResponseFacade@7507980f}
storePageInBacktrackCache=true ) method=POST
uri=/WebObjects/AdneroWeb.woa/ajax/0.0.17.1.1.1.0.1
defaultFormValueEncoding=UTF-8 formValueEncodingDetectionEnabled=NO
formValueEncoding=UTF-8 formValues={WOIsmapCoords =
({id:1,method:system.listMethods,params:[]}); } response=null
pageElement=null pageComponent=null currentComponent=null
url=/WebObjects/AdneroWeb.woa urlApplicationNumber=-1
distributionEnabled=false pageChanged=false pageReplaced=false
ERROR 20:32:35 (com.adnero.finance.web.Application:?) -got page
com.adnero.finance.web.pages.Main name: com.adnero.finance.web.pages.Main
subcomponents: null
I am guessing that this differences means that the ajax requests are not
being handled by the Ajax Handler but are getting caught by the default
handler or that they are falling back to pageWithName, (which then falls
back to Main.class) when they should not be?
My apache config for the proxy looks like this:
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/WebObjects/Frameworks/ [NC]
RewriteRule ^/WebObjects/Frameworks/(.+)$
/WebServerResources/Frameworks/$1 [PT]
RewriteCond %{REQUEST_URI} ^/WebObjects/Contents/ [NC]
RewriteRule ^/WebObjects/Contents/(.+)$ /WebServerResources/Contents/$1
[PT]
RewriteCond %{REQUEST_URI}
^/WebObjects/AdneroWeb.woa/Contents/WebServerResources/ [NC]
RewriteRule ^/WebObjects/AdneroWeb.woa/Contents/WebServerResources/(.+)$
/WebServerResources/Contents/WebServerResources/$1 [PT]
RewriteCond %{REQUEST_URI} ^/ishealthy$ [NC]
RewriteRule ^/ishealthy$
/WebObjects/AdneroWeb.woa/ra/Healthcheck/ishealthy [PT]
Proxy *
Order deny,allow
Allow from all
/Proxy
ProxyPass / http://localhost:8080/ retry=0
ProxyPassReverse / http://localhost:8080/
ProxyPreserveHost on
LogFormat %h (%{X-Forwarded-For}i) %l %u %t \%r\ %s %b \%{Referer}i\
\%{User-Agent}i\
ErrorLog /var/log/httpd/elasticbeanstalk-error_log
strange SELECT results in postgresql slave
Hi, I know many of you work with PostgreSQL so I'll try this here. I have a strange case where a SELECT for a primary key returns 0 rows on one slave, while it returns the correct 1 row on another slave and on the master. It does however return that row on all slaves when queried with LIKE and trailing or leading wildcard. psql version is 9.3.5, because that's what comes with Ubuntu 14.04 LTS Master runs Ubuntu 14.04 LTS Slave 1 runs also Ubuntu 14.04 LTS Slave 2 runs Mac OS X 10.7, pgsql installed via homebrew Both slaves are configured with streaming replication, and I've been using that setup for years, starting with psql 9.1, with no problems so far. Suspecting some weird problem, I already re-initialized slave 2 with a fresh backup and started replication from the beginning, so the database is fresh from a master copy, and is verified to be current. 2015-05-19 20:53:43.937 CEST LOG: entering standby mode 2015-05-19 20:53:43.974 CEST LOG: redo starts at 31/3F28 2015-05-19 20:53:45.522 CEST LOG: consistent recovery state reached at 31/40CCE6E8 2015-05-19 20:53:45.523 CEST LOG: database system is ready to accept read only connections 2015-05-19 20:53:45.604 CEST LOG: started streaming WAL from primary at 31/4100 on timeline 1 So here's the query. SELECT * FROM MyTable WHERE email = 'f...@example.com'; This returns 1 row on master and slave 1, but 0 on slave 2, while this query: SELECT * FROM MyTable WHERE email LIKE 'f...@example.com%'; or this one SELECT * FROM MyTable WHERE email LIKE '%f...@example.com'; returns the correct 1 row on all three systems. Note that this works with the wildcard on either end, or also somewhere in the middle, doesn't matter. Note: email is the primary key on this table. This behaviour is the same with any address to be queried, and is also the same on a similar second table. This does NOT occur on any other table, which all have integer primary keys. There is also no problem when I select for other attributes on these tables. Does anyone have a hint? Thanks Maik ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: WOSession serialisation redux
Can you just mark it as transient and re-create it on a lazy creation basis?
I've not looked but that seems like an appropriate use of transient.
Chuck
On 2015-05-20, 6:45 PM, Paul Hoadley wrote:
On 20 May 2015, at 9:21 am, Paul Hoadley
pa...@logicsquad.netmailto:pa...@logicsquad.net wrote:
On 20 May 2015, at 1:53 am, Ramsey Gurley
rgur...@smarthealth.commailto:rgur...@smarthealth.com wrote:
On May 19, 2015, at 4:03 AM, Paul Hoadley
pa...@logicsquad.netmailto:pa...@logicsquad.net wrote:
I've had a look at Ramsey's ERPersistentSessionStorage.framework, and my
intention was to create something similar backed by memcached. I got it
working to the proof-of-concept level on a trivial app, but using native Java
serialisation seems brittle. (By which I mean it falls over pretty fast when
you throw a serialisation-based approach into a substantial application.)
I'm curious about the falls over pretty fast part. What sort of problems do
you have?
Serialization failures. (To be clear, I'm talking about testing with my own
memcached-based approach, but it's really only some very minor changes to your
work to use memcached instead of the database as the back-end.) Initially it
was my own classes, which I could fix, but then I started hitting weirdness
like this:
Caused by: java.io.NotSerializableException: java.lang.reflect.Field
It's not obvious to me where that's coming from, or how to fix it.
Having just discovered this:
-Dsun.io.serialization.extendedDebugInfo=true
I can report that the java.lang.reflect.Field is in an ERXDisplayGroup. And
here it is:
public class ERXDisplayGroupT extends WODisplayGroup {
private Field displayedObjectsField;
So is ERXDisplayGroup simply not serializable, and hence I'd need to pull it
from any application that wanted to use ERPersistentSessionStorage.framework?
--
Paul Hoadley
http://logicsquad.net/
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RE: strange SELECT results in postgresql slave
Well the obvious fix is to run PostgreSQL on the same OS and version of OS + PostgreSQL. :) 1. Have you verified that the PK index was built successfully during the restore? Or, if you used pgbasebackup, then since it is physical not logical replication something may be mismatched. Tried re-indexing the PK on server2? If the pk index is broken for some reason on server 2, then this could explain it because Pg may not use indexes at all when doing LIKEs ... even with the % at the end ...if your locale isn't appropriate. So the explain analyze may show that the LIKEs are not using the index even if LIKE 'xyz%'. 2. Aside from a bug with Postgres on the Mac, it may possibly be due to a locale/encoding problem so that's the second thing I'd check. Maybe the @ sign is throwing it off for the locale? (since the problems seem to be around the email addresses on slave 2). Not sure why LIKE seems to work though in the case. 3. Make sure Pg is the same version on all three. select version(); Good luck. (But I would not do streaming replication across different OSs like this.) Sent from my Verizon Wireless 4G LTE smartphone Original message From: Musall Maik m...@selbstdenker.ag Date: 05/20/2015 8:25 AM (GMT-05:00) To: WebObjects-Dev Apple webobjects-dev@lists.apple.com Subject: strange SELECT results in postgresql slave Hi, I know many of you work with PostgreSQL so I'll try this here. I have a strange case where a SELECT for a primary key returns 0 rows on one slave, while it returns the correct 1 row on another slave and on the master. It does however return that row on all slaves when queried with LIKE and trailing or leading wildcard. psql version is 9.3.5, because that's what comes with Ubuntu 14.04 LTS Master runs Ubuntu 14.04 LTS Slave 1 runs also Ubuntu 14.04 LTS Slave 2 runs Mac OS X 10.7, pgsql installed via homebrew Both slaves are configured with streaming replication, and I've been using that setup for years, starting with psql 9.1, with no problems so far. Suspecting some weird problem, I already re-initialized slave 2 with a fresh backup and started replication from the beginning, so the database is fresh from a master copy, and is verified to be current. 2015-05-19 20:53:43.937 CEST LOG: entering standby mode 2015-05-19 20:53:43.974 CEST LOG: redo starts at 31/3F28 2015-05-19 20:53:45.522 CEST LOG: consistent recovery state reached at 31/40CCE6E8 2015-05-19 20:53:45.523 CEST LOG: database system is ready to accept read only connections 2015-05-19 20:53:45.604 CEST LOG: started streaming WAL from primary at 31/4100 on timeline 1 So here's the query. SELECT * FROM MyTable WHERE email = 'f...@example.com'; This returns 1 row on master and slave 1, but 0 on slave 2, while this query: SELECT * FROM MyTable WHERE email LIKE 'f...@example.com%'; or this one SELECT * FROM MyTable WHERE email LIKE '%f...@example.com'; returns the correct 1 row on all three systems. Note that this works with the wildcard on either end, or also somewhere in the middle, doesn't matter. Note: email is the primary key on this table. This behaviour is the same with any address to be queried, and is also the same on a similar second table. This does NOT occur on any other table, which all have integer primary keys. There is also no problem when I select for other attributes on these tables. Does anyone have a hint? Thanks Maik ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/mcassidy%40escholar.com This email sent to mcass...@escholar.com ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: WOSession serialisation redux
On 20 May 2015, at 9:21 am, Paul Hoadley pa...@logicsquad.net wrote:
On 20 May 2015, at 1:53 am, Ramsey Gurley rgur...@smarthealth.com wrote:
On May 19, 2015, at 4:03 AM, Paul Hoadley pa...@logicsquad.net wrote:
I’ve had a look at Ramsey’s ERPersistentSessionStorage.framework, and my
intention was to create something similar backed by memcached. I got it
working to the proof-of-concept level on a trivial app, but using native
Java serialisation seems brittle. (By which I mean it falls over pretty
fast when you throw a serialisation-based approach into a substantial
application.)
I’m curious about the falls over pretty fast part. What sort of problems
do you have?
Serialization failures. (To be clear, I’m talking about testing with my own
memcached-based approach, but it’s really only some very minor changes to
your work to use memcached instead of the database as the back-end.)
Initially it was my own classes, which I could fix, but then I started
hitting weirdness like this:
Caused by: java.io.NotSerializableException: java.lang.reflect.Field
It’s not obvious to me where that’s coming from, or how to fix it.
Having just discovered this:
-Dsun.io.serialization.extendedDebugInfo=true
I can report that the java.lang.reflect.Field is in an ERXDisplayGroup. And
here it is:
public class ERXDisplayGroupT extends WODisplayGroup {
private Field displayedObjectsField;
So is ERXDisplayGroup simply not serializable, and hence I’d need to pull it
from any application that wanted to use ERPersistentSessionStorage.framework?
--
Paul Hoadley
http://logicsquad.net/
___
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Re: WOSession serialisation redux
On 21 May 2015, at 11:17 am, Chuck Hill ch...@gevityinc.com wrote: Can you just mark it as transient and re-create it on a lazy creation basis? I’ve not looked but that seems like an appropriate use of transient. Yep, that works. Thanks Chuck. -- Paul Hoadley http://logicsquad.net/ ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Ajax Servlet Deployment
Hi John,
Thanks for the tip. I tried that and it wasn’t the issue per say. I also tried
re-ordering the frameworks.
I did finally figure it out. The local development environment used an https
connection and the ElasticBeanstalk one did not. Combined with the secure
cookie property being on in Wonder this meant that the session was not
available to the browser. This seems to have caused the issue.
Thanks for your help.
On May 20, 2015, at 9:23 AM, John Huss johnth...@gmail.com wrote:
If you are aren't on a recent version of Wonder, you need to be for this to
work - Ajax in servlet. Probably fixed about a year ago.
On Tue, May 19, 2015 at 4:14 PM Kevin Hinkson k...@coralstone.co
mailto:k...@coralstone.co wrote:
Hi,
I am attempting to deploy a web page where the page uses an
AjaxFlexibleFileUpload component. This works in the development setup.
However, once the page with the AjaxFlexibleFileUpload loads on the server
the two XHRs that run come back with 200 responses but they are completely
empty of content. This results in no file dialog appearing when a user
attempts to select an image for upload.
The errors that show in the browser JS console are JSONRpcClientException:
error parsing result”, ReferenceError: Can't find variable: jsonrpc_0 and
ReferenceError: Can't find variable: jsonrpc_1.
My local development setup is a (reverse) proxy through NGINX. The deployment
is to a AWS Elastic Beanstalk, in Tomcat 7, Java 7 which uses Apache as a
reverse proxy.
I’ll admit I know very little about WebObjects and Ajax. It is not clear to
me that I have all the correct steps for using Ajax components. One thing I
did was to override pageWithName in the Application class.
@Override
public WOComponent pageWithName(String name, WOContext context)
{
log.error(application pageWithName + name + + context);
WOComponent page = super.pageWithName(name, context);
log.error(got page + page);
return page;
}
I noticed that when run locally there is nothing in the logs for the XHR
requests because they load fine. However, when deployed to a Beanstalk
instance I get the following.
ERROR 20:32:35 (com.adnero.finance.web.Application:?) -application
pageWithName null er.extensions.appserver.ERXWOServletContext contextID=0
requestSenderID=0.17.1.1.1.0.1 elementID=null
sessionID=GpMB9KKAiBu1Rdv4MqVNu0 request=er.extensions.appserver.ERXRequest
(er.extensions.appserver.ERXRequest httpVersion=HTTP/1.0
headers={accept=[*/*], accept-encoding=[gzip, deflate],
accept-language=[en-us], connection=[Keep-Alive], content-length=[50],
content-type=[text/plain],
cookie=[JSESSIONID=727EEEFD467421EFD51BB2A65A0707BF], dnt=[1],
host=[replaced.host.url], origin=[http://replaced.host.url
http://replaced.host.url/],
referer=[http://replaced.host.url/WebObjects/AdneroWeb.woa/wo/0.0.0.17.1
http://replaced.host.url/WebObjects/AdneroWeb.woa/wo/0.0.0.17.1],
remote_addr=[104.200.104.189], user-agent=[Mozilla/5.0 (Macintosh; Intel Mac
OS X 10_10_3) AppleWebKit/600.6.3 (KHTML, like Gecko) Version/8.0.6
Safari/600.6.3], x-forwarded-host=[replaced.host.url],
x-forwarded-server=[ip-172-31-26-217.ec2.internal],
x-requested-with=[XMLHttpRequest], x-webobjects-adaptor-version=[5.2],
x-webobjects-servlet-server-name=[replaced.host.url],
x-webobjects-servlet-server-port=[80]} content-length=50 cookies=null
userInfo={ServletConfig=org.apache.catalina.core.StandardWrapperFacade@7f127e0,
ServletContext=org.apache.catalina.core.ApplicationContextFacade@6970e732,
HttpServletRequest=org.apache.catalina.connector.RequestFacade@2b18fb03,
HttpServletResponse=org.apache.catalina.connector.ResponseFacade@7507980f}
storePageInBacktrackCache=true ) method=POST
uri=/WebObjects/AdneroWeb.woa/ajax/0.0.17.1.1.1.0.1
defaultFormValueEncoding=UTF-8 formValueEncodingDetectionEnabled=NO
formValueEncoding=UTF-8 formValues={WOIsmapCoords =
({id:1,method:system.listMethods,params:[]}); } response=null
pageElement=null pageComponent=null currentComponent=null
url=/WebObjects/AdneroWeb.woa urlApplicationNumber=-1
distributionEnabled=false pageChanged=false pageReplaced=false
ERROR 20:32:35 (com.adnero.finance.web.Application:?) -got page
com.adnero.finance.web.pages.Main name: com.adnero.finance.web.pages.Main
subcomponents: null
I am guessing that this differences means that the ajax requests are not
being handled by the Ajax Handler but are getting caught by the default
handler or that they are falling back to pageWithName, (which then falls back
to Main.class) when they should not be?
My apache config for the proxy looks like this:
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/WebObjects/Frameworks/ [NC]
RewriteRule ^/WebObjects/Frameworks/(.+)$ /WebServerResources/Frameworks/$1
[PT]
RewriteCond %{REQUEST_URI} ^/WebObjects/Contents/ [NC]
RewriteRule ^/WebObjects/Contents/(.+)$
