July 2006 - jboss-user - Jboss List Archives

[EJB 3.0] - Improvement for org.jboss.ejb3.embedded.EJB3StandaloneBootst

by jc7442

When we start scanClasspath method, EJB3StandaloneBoostrap class defines a set of ignoredJars. These jars are not scan for deploy. ignoredJars is public static, consequently we can add some of our jars in the list (such as junit, jdbc driver, ...) When using build tools such as maven jars are named with - for example junit-3.8.2.jar. If we have added junit-3.8.2.jar in the set of jar to ignore, when we will migrate to next junit version we will have to update the set. When we have a lot of dependency the risk is to forget some librairies. A nice features will be that list of jars to ignore contains regular expression for jar (such has junit*.jar: ".*.junit-\\d.\\d.\\d.jar"). Then it will be possible to list all our jars without taking care about the release. And when we will change the release of our components, it will not affect our list of jar to ignore. Code may looks like: protected boolean accept(String file) { | for (String pattern : ignoredJars) { | if (file.matches(pattern)) { | return false; | } | } | return true; | } | | public static HashSet<String> ignoredJars = new HashSet<String>(); | | static { | ignoredJars.add(".*.junit.*.jar"); | ignoredJars.add(".*.commons-.*.jar"); | ignoredJars.add(".*.jboss-.*.jar"); | ... | } | public static void scanClasspath() | { | //if (ignoredJars.contains(fp.getName())) continue; | if (!accept(fp.getName())) continue; | ... | | ...} | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961503#3961503 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961503

19 years, 9 months

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[JBoss Messaging] - Re: Removing a MessageListener doesn't remove its associated

by davidrh

Just showing a colleague and realised that setting the listener to null on the consumer does make a difference. If you do this, only 40 threads get created. If I then pause the above sample, the threads get cleaned up, so I assume there is some sort of thread pooling and cleanup going on. Will have to check out our app server again, but we had over 1,400 threads most of which were message listeners. BTW - we were seeing this behaviour in 1.0.1 CR2, so I might try CR3 next week. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961502#3961502 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961502

19 years, 9 months

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[Management, JMX/JBoss] - [JBOSS 4] Pb Schedulers

by bobunny

Hi every one, I don't know if it's the good group to post my problem ... Anyway, I have migrated from a Jboss application Server 3.0.3 release to a 4.0.3 release and i encountered some troubles in my applications. To give a simple example, I have severals schedulers. We can take 2 of them for example. In the release 3.0.3, the different schedulers runs independently, due to the use of distinct thread i think. Now with the 4.0.3 release, they run one by one. So it's a problem for me because i need them to run simulneously. I don't know how to configure that. Here some logs from the 3.0.3 release : | 2006-07-27 18:15:00,004 INFO [jpea.dataimport.equilend.CompareReport] [Thread-35] No remote file found | 2006-07-27 18:16:00,003 INFO [jpea.dataimport.equilend.CompareReport] [Thread-32] No remote file found | 2006-07-27 18:17:00,004 INFO [jpea.dataimport.equilend.CompareReport] [Thread-30] No remote file found | 2006-07-27 18:18:00,005 INFO [jpea.dataimport.equilend.CompareReport] [Thread-31] No remote file found We can notice that for each call, a different thread is used [Thread-XX]. So i suppose that a pool of thread is used here. Now in the 4.0.3 release, i have something like this : 2006-07-27 18:15:35,802 INFO [jpea.dataimport.equilend.CompareReport] [Timer-2] No remote file found | 2006-07-27 18:16:35,762 INFO [jpea.dataimport.triparty.jpmorgan.JPMorganFileImporter] [Timer-2] No remote file. 0 local file(s). | 2006-07-27 18:16:35,813 INFO [jpea.dataimport.equilend.CompareReport] [Timer-2] No remote file found Here we can notice [Timer-2]. So when 2 process must be launched at the same time, [Timer-2] runs the first of them, and once finished, runs the second. Does anyone know how to configure JBOSS 4.0.3 to use different threads to run my schedulers? Thanks for your help View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961501#3961501 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961501

19 years, 9 months

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[Beginners Corner] - Integrating ActiveMQ with Jboss4

by cosjav

Hi, I am relatively new to JMS and have been looking to migrate our current JBossMQ implementation of JMS to ActiveMQ and at the same time move from using JBoss 3.2.3 to JBoss 4.0.4. Our product is deployed over two servers whereby MDBs deployed on server1 will write to queues located on server2 which server2 will then read from. Server2 also writes to queues located on itself that server1 will read from. Finally server1 also has some local queues that it writes to and reads from (accessed by server1 only). This above-mentioned setup is working perfectly fine with the JBossMQ implementation of JMS and the only reason why we are migrating to ActiveMQ is because JBossMQ doesnt support indexing on message selectors (i.e. when a queue that has multiple receivers, which receive messages based on a msg selector, grows large with messages that dont match a particular receiver, performance degrades significantly). Now the question I'm asking is a newbie one in relation to MDBs reading from remote JMS queues. It was my understanding that to achieve this one would have to follow something similar to: http://wiki.jboss.org/wiki/Wiki.jsp?page=HowDoIConfigureAnMDBToTalkToARem... Which is pretty much identical to the way we have set up with JBossMQ. But when it comes to ActiveMQ I couldnt find any samples that show me how to do this (the ActiveMQ Jboss Integration Guide seems to take a different approach thats not for remote queue access). Does this mean there is another way to do it? (btw, I will also post this on the ActiveMQ forums but wanted to get an idea from the Jboss community as to whether there are better/different ways of doing this) I will appreciate any guidance (even RTFM advice but with references please). Like what should I read first, and what comes next, etc... because at the moment there seems to be loads of information that I cant make much sense of in terms what links with what. Thanks, cosjav P.S the attempts I have made so far are shown below: I changed the server1 JMSProviderLoader (contained in a file named jms-providers-service.xml in deploy/jms) details from: <server> |  | <mbean code="org.jboss.jms.jndi.JMSProviderLoader" | name="jboss.mq:service=JMSProviderLoader,name=RemoteJBossMQProvider_server2"> | <attribute name="ProviderName">RemoteJMSProvider_server2</attribute> | <attribute name="ProviderUrl">jnp://server2:1099</attribute> | <attribute name="ProviderAdapterClass">org.jboss.jms.jndi.JBossMQProvider</attribute> | <attribute name="QueueFactoryRef">UIL2XAConnectionFactory</attribute> | <attribute name="TopicFactoryRef">UIL2XAConnectionFactory</attribute> | </mbean> | | </server> to <server> |  | <mbean code="org.jboss.jms.jndi.JMSProviderLoader" | name="jboss.mq:service=JMSProviderLoader,name=RemoteActiveMQProvider_server2,server=server2"> | <attribute name="ProviderName">RemoteJMSProvider_indium</attribute> | <attribute name="ProviderAdapterClass">org.jboss.jms.jndi.JNDIProviderAdapter</attribute> |  | <attribute name="QueueFactoryRef">ActiveMQConnectionFactory</attribute> | <attribute name="TopicFactoryRef">ActiveMQConnectionFactory</attribute> | <attribute name="Properties"> | java.naming.factory.initial=org.apache.activemq.jndi.ActiveMQInitialContextFactory | java.naming.factory.url.pkgs=org.jnp.interfaces | java.naming.provider.url=server2:1099 | </attribute> | </mbean> | </server> | (I think I have set the connection factory incorrectly above because I'm getting exceptions saying "javax.naming.NameNotFoundException: ActiveMQConnectionFactory") Then I changed jms-ds.xml (in deploy/jms) on server1 from: <tx-connection-factory> | <jndi-name>RemoteJmsXA_server2</jndi-name> | <xa-transaction/> | <track-connection-by-tx>true</track-connection-by-tx> | <adapter-display-name>JMS Adapter</adapter-display-name> | <config-property name="JmsProviderAdapterJNDI" type="java.lang.String">java:/RemoteJMSProvider_server2</config-property> | <config-property name="SessionDefaultType" type="java.lang.String">javax.jms.Queue</config-property> | <security-domain-and-application>RemoteJmsXA_server2_Realm</security-domain-and-application> | <max-pool-size>100</max-pool-size> | </tx-connection-factory> | to <tx-connection-factory> | <jndi-name>RemoteJmsXA_server2</jndi-name> | <xa-transaction/> | <track-connection-by-tx/> | <adapter-display-name>JMS Adapter</adapter-display-name> | <config-property name="JmsProviderAdapterJNDI" type="java.lang.String">java:/RemoteJMSProvider_server2</config-property> | <config-property name="SessionDefaultType" type="java.lang.String">javax.jms.Queue</config-property> | <security-domain-and-application>RemoteJmsXA_server2_Realm</security-domain-and-application> | <max-pool-size>100</max-pool-size> | <rar-name>activemq-ra-4.0.1.rar</rar-name> | <connection-definition>javax.jms.QueueConnectionFactory</connection-definition> | </tx-connection-factory> | (this was changed based on the ActiveMQ sample) Finally I changed a the queue definitons from: <mbean code="org.jboss.mq.server.jmx.Queue" | name="jboss.mq.destination:service=Queue,name=queue1"> | <depends optional-attribute-name="DestinationManager">jboss.mq:service=DestinationManager</depends> | </mbean> to <mbean code="org.jboss.resource.deployment.AdminObject" name="activemq.queue:name=queue1"> | <attribute name="JNDIName">queue/queue1</attribute> | | <depends optional-attribute-name="RARName">jboss.jca:service=RARDeployment,name='activemq-ra-4.0.1.rar'</depends> | <attribute name="Type">javax.jms.Queue</attribute> | <attribute name="Properties">PhysicalName=queue.queue1</attribute> | </mbean> | I fiddled around with some other configs too but it'll make my post too long if I show all those... I'm clearly missing a link somewhere because after all these changes I am getting: java.lang.ClassCastException | at org.jboss.mq.SpyQueueReceiver.<init>(SpyQueueReceiver.java:42) | at org.jboss.mq.SpySession.createReceiver(SpySession.java:689) | whenever I try to create a receiver (and I think its the same for creating a sender too) Thanks again... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961500#3961500 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961500

19 years, 9 months

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[JBoss Portal] - Re: User Input Req for 2.6 Usability and UI enhancements

by wtff

yeah, I see your point. As you mentioned, putting libs into the app is the easiest way. What I am proposing is that JBoss provides guidance on how to deal with the shared lib approach for those developers who want to go the other way. Let's say that there was one howto on how to install SEAM, Facelets, JSF, Tomawhak, Trinidat and jBPM into Jboss as shared libs and then deploy a portlet app which makes use of these technologies. In this case, the effort of finding out how to do this was invested only once and the knowledge made available to all developers who then wouldn't have to find out for themselves one by one. Stripping this configuration down can then be done easily I suppose because moving part of the libs from a shared mode into apps will probably not break anything. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961499#3961499 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961499

19 years, 9 months

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[Installation, Configuration & Deployment] - Re: Problem with system.getproperties(

by jaikiran

You need not place the property file outside your application. You can package this property file as part of your application(may be in the same jar/war in which your servlet is present) and later on in your code of servlet, you can retrieve the same as follows: Servlet { | | init() { | InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream("yourPropertiesFileName.properties"); | java.util.Properties props = new Properties(); | props.load(inputStream); | } | | } You will find more information on this here: http://www.javaworld.com/javaworld/javaqa/2003-08/01-qa-0808-property.html View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961498#3961498 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961498

19 years, 9 months

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[JBoss Portal] - Database connectivity with Oracle9i

by anurudh

Please tell me how to do database connectivity with Oracle9i. I have created a class DAO and jst write the code for opening the connection and executed a query to check the validity of a user and then close the connection. This class is working fine when i run it indipendently but when i try to run it through portlet by passing the username and password, it won't work. So do i need to make some other changes in any other file..........??? Thanks......!!!! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961497#3961497 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961497

19 years, 9 months

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[JBoss jBPM] - Retriving task list

by dlipski

Hi I'm wondering if it is possible to get user task list meeting some criteria. For example when I create process instance I add to process context some variable ('var1'). Then when I retrive task instances for user i want only tasks which belongs to process instances with var1 = 10. I don't want to retrive all task instances and filter them in Java. What is the simplest way to achieve this ? Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961496#3961496 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961496

19 years, 9 months

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[EJB 3.0] - Re: Can you change the context root of a deployed ear?

by apill

Yes the issues is http://jira.jboss.com/jira/browse/EJBTHREE-617[/url] View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961495#3961495 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961495

19 years, 9 months

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[Beginners Corner] - Re: Properties file with the same name in separate JAR

by jaikiran

Are these 2 jars part of the same application? If yes, then why are the properties files having the same name. Is there any problem in giving two different names to the properties file and using the appropriate one through your code? The reason i ask these questions is that the properties file is picked by the classloader and if you want to maintain 2 property files with the same name in 2 jars of the *SAME* application, then i dont think thats possible. I believe classloader isolation is possible at application level and not jar level. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961494#3961494 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961494

19 years, 9 months

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jboss-user July 2006