[JBoss JIRA] Created: (JBESB-193) Need support for notification generatoin from within ActionProcessor.process method
by Tom Fennelly (JIRA)
Need support for notification generatoin from within ActionProcessor.process method
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Key: JBESB-193
URL: http://jira.jboss.com/jira/browse/JBESB-193
Project: JBoss ESB
Issue Type: Task
Security Level: Public (Everyone can see)
Affects Versions: 4.1
Reporter: Tom Fennelly
Assigned To: Mark Little
Fix For: 4.1
In version 4.0, the Action Processing pipeline management code raises notifications in response to an exception from the ActionProcessor.process method. The pipeline managemnt code calls the getOkNotification (no exception) or getErrorNotification (exception) to get the notification message.
For many reasons, this is a very flawed model. Notifications should be raised from within the process method by means of attaching the notifications (error or otherwise) to the message (the mechanism is a design issue). Once the process method returns, the pipline processing management code can check the message for notifications. If there are errors, it can/should (?) abort the message processing, send the error notification (by whatever notification options are configured on the listener) and signal the failure to the calling process (by whatever failure config is configured on the listener).
The getOk and getErro methods can then be removed.
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1 month
[JBoss JIRA] Created: (JGRP-457) Optimization: make threads return immediately if NAKACK has another active thread for the same sender
by Bela Ban (JIRA)
Optimization: make threads return immediately if NAKACK has another active thread for the same sender
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Key: JGRP-457
URL: http://jira.jboss.com/jira/browse/JGRP-457
Project: JGroups
Issue Type: Feature Request
Reporter: Bela Ban
Assigned To: Bela Ban
Priority: Minor
Fix For: 2.5
In NAKACK, when a thread places a message for sender S into the NakReceiverWindow NRW, it subsequently acquires a lock on NRW (lock by sender) and removes as many messages as possible and passes them up.
If many threads do this at the same time, all threads but one are blocked, and - when finally unblocked - usually return. This causes context switches and possibly cache flushing, so a better way would be to have the threads check whether another thread is already removing messages using a CAS operation *before* acquiring the lock.
The effect should be that no threads will wait on the lock unnecessarily, and thus fewer context switches, and more threads available to the pool.
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4 months, 1 week
[JBoss JIRA] Created: (JBRULES-1829) Nested From Tag Not Supported in Drools
by Nagarajan Shanmugam (JIRA)
Nested From Tag Not Supported in Drools
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Key: JBRULES-1829
URL: https://jira.jboss.org/jira/browse/JBRULES-1829
Project: JBoss Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-compiler
Affects Versions: 5.0.0.M2
Environment: Windows XP, Eclipse 3.3.
Reporter: Nagarajan Shanmugam
Assignee: Mark Proctor
HI i have Created one rule file that have two From tag. Using XmlDumper I create Xml rule file. When i try to parse that Xml rule file its throwing Error. And also the parsed Xml files also Wrong.
Exception in thread "main" org.drools.compiler.DroolsParserException: org.xml.sax.SAXParseException: <from> may not be nested
at com.drools.service.ConvertDrlToXml.main(ConvertDrlToXml.java:47)
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13 years, 3 months
[JBoss JIRA] Created: (JBRULES-1009) Can't execute rules twice with a second classloader
by aaron dixon (JIRA)
Can't execute rules twice with a second classloader
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Key: JBRULES-1009
URL: http://jira.jboss.com/jira/browse/JBRULES-1009
Project: JBoss Rules
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: Reteoo
Affects Versions: 4.0.0.MR3
Reporter: aaron dixon
Assigned To: Mark Proctor
Priority: Minor
Attachments: drools-test.zip
I am trying to sequentially perform two rules executions using two
different classloaders in the same VM. I create completely new state
for each execution, yet I still fail on the second execution (the first execution succeeds). I
believe this has to do with some internal static cached state that
JBossRules is maintaining. An integration test is attached as an archived Eclipse project (zip).
Exception thrown:
Exception in thread "main" java.lang.ClassCastException: test.drools.classloader.FooShadowProxy
at org.drools.base.test.drools.classloader.Foo$getName.getValue(Unknown Source)
at org.drools.base.ClassFieldExtractor.getValue(ClassFieldExtractor.java:94)
at org.drools.base.evaluators.StringFactory$StringEqualEvaluator.evaluate(StringFactory.java:85)
at org.drools.rule.LiteralRestriction.isAllowed(LiteralRestriction.java:61)
at org.drools.rule.LiteralConstraint.isAllowed(LiteralConstraint.java:82)
at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:121)
at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:20)
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:159)
at org.drools.reteoo.Rete.assertObject(Rete.java:175)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:190)
at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:70)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:772)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:584)
at org.drools.reteoo.ReteooStatelessSession.execute(ReteooStatelessSession.java:63)
at test.drools.classloader.Driver.testRules(Driver.java:49)
at test.drools.classloader.Driver.go(Driver.java:35)
at test.drools.classloader.Driver.main(Driver.java:19)
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13 years, 3 months