FWIW you can always use the <spring:bean class="com.acme.MyPlugin"/>
as an alternative to <myPlugin/>
I guess your classpath (assembly) must have a jar with an old version
of the XBean stuff (in the file
META-INF/services/org/apache/xbean/spring/http/activemq.org/config/1.0
inside a jar). It might be worth noodling in some of your
jars/classpath to see if you've another activemq jar without your
generated jar.
e.g. I'd recommend from the activemq directory doing
mvn -o clean install -Dmaven.test.skip=true
then trying your assembly, just to make sure maven didn't download
some newer built snapshot; and to ensure the assembly is properly
built etc.
On 4/4/07, davidmc <[EMAIL PROTECTED]> wrote:
Hello all,
I am trying to develop a simple interceptor plugin for ActiveMQ.
For now I'm just writing a "dummy plugin" in order to integrate it with the
rest of ActiveMQ.
In the end I want to do something similar to the LoggingBrokerPlugin class.
My code so far is:
[java code]
package org.apache.activemq.myPlugin;
import org.apache.activemq.broker.BrokerPluginSupport;
import org.apache.activemq.broker.ProducerBrokerExchange;
import org.apache.activemq.command.Message;
/**
* Test plugin
*
* @org.apache.xbean.XBean element="myPlugin"
*
*/
public class MyPlugin extends BrokerPluginSupport{
@Override
public void start() throws Exception {
System.err.println("hello");
super.start();
}
@Override
public void stop() throws Exception {
System.err.println("goodbye");
super.stop();
}
@Override
public void send(ProducerBrokerExchange producerExchange, Message
messageSend) throws Exception {
System.err.println("message sent");
super.send(producerExchange, messageSend);
}
}
[/ java code]
I want to load the plugin by writing in the activemq.xml file the following:
[activemq.xml file]
<!-- START SNIPPET: xbean -->
<beans>
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"/>
<broker useJmx="true" xmlns="http://activemq.org/config/1.0";
persistent="false">
<transportConnectors>
<transportConnector uri="tcp://localhost:61616"/>
</transportConnectors>
<plugins>
<myPlugin/>
</plugins>
</broker>
</beans>
<!-- END SNIPPET: xbean -->
[/activemq.xml file]
I have run maven on the activemq-core files so that it generates files such
as
activemq-core/target/xbean/META-INF/services/org/apache/xbean/spring/http/activemq.org/config/1.0
, activemq-core/target/xbean/activemq.xsd, etc. from the
@org.apache.xbean.XBean tag.
My plugin "myPlugin" does indeed appear in the 1.0 file.
However, I still get this exception when I launch the broker with
activemq-console/src/main/java/org/apache/activemq/console/Main start :
[broker log]
ACTIVEMQ_HOME: ..\.
ACTIVEMQ_BASE: ..\.
Loading message broker from: xbean:activemq.xml
Now attempting to figure out the type of resource: activemq.xml
( ... usual stuff ... )
2007-04-04 17:54:16,921 [main ] DEBUG
anBeanDefinitionDocumentReader - Loading bean definitions
2007-04-04 17:54:16,968 [main ] DEBUG
anBeanDefinitionParserDelegate - Neither XML 'id' nor 'name' specified -
using generated bean name
[org.springframework.beans.factory.config.PropertyPlaceholderConfigurer]
2007-04-04 17:54:16,984 [main ] DEBUG XBeanNamespaceHandler
- Could not find resource:
META-INF/services/org/apache/xbean/spring/http/activemq.org/config/1.0/broker
2007-04-04 17:54:17,046 [main ] DEBUG
anBeanDefinitionParserDelegate - Neither XML 'id' nor 'name' specified -
using generated bean name [org.apache.activemq.xbean.XBeanBrokerService]
2007-04-04 17:54:17,046 [main ] DEBUG XBeanNamespaceHandler
- Could not find resource:
META-INF/services/org/apache/xbean/spring/http/activemq.org/config/1.0/transportConnector
2007-04-04 17:54:17,062 [main ] DEBUG
anBeanDefinitionParserDelegate - Neither XML 'id' nor 'name' specified -
using generated bean name [org.apache.activemq.broker.TransportConnector]
2007-04-04 17:54:17,078 [main ] DEBUG XBeanNamespaceHandler
- Could not find resource:
META-INF/services/org/apache/xbean/spring/http/activemq.org/config/1.0/loggingBrokerPlugin
2007-04-04 17:54:17,109 [main ] DEBUG
anBeanDefinitionParserDelegate - Neither XML 'id' nor 'name' specified -
using generated bean name
[org.apache.activemq.broker.util.LoggingBrokerPlugin]
2007-04-04 17:54:17,109 [main ] DEBUG XBeanNamespaceHandler
- Could not find resource:
META-INF/services/org/apache/xbean/spring/http/activemq.org/config/1.0/myPlugin
ERROR: java.lang.RuntimeException: Failed to execute start task. Reason:
org.springframework.beans.factory.BeanDefinitionStoreException: Unrecognized
xbean element mapping: myPlugin in namespace http://activemq.org/config/1.0
java.lang.RuntimeException: Failed to execute start task. Reason:
org.springframework.beans.factory.BeanDefinitionStoreException: Unrecognized
xbean element mapping: myPlugin in namespace http://activemq.org/config/1.0
at
org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:70)
at
org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:50)
at
org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand.java:105)
at
org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:50)
at
org.apache.activemq.console.command.ShellCommand.main(ShellCommand.java:77)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.activemq.console.Main.runTaskClass(Main.java:213)
at org.apache.activemq.console.Main.main(Main.java:102)
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException:
Unrecognized xbean element mapping: myPlugin in namespace
http://activemq.org/config/1.0
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parseBeanFromExtensionElement(XBeanNamespaceHandler.java:258)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parse(XBeanNamespaceHandler.java:152)
at
org.apache.xbean.spring.context.v2.XBeanNamespaceHandler.parse(XBeanNamespaceHandler.java:49)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1147)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseNestedCustomElement(BeanDefinitionParserDelegate.java:1185)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.xbean.spring.context.v2c.XBeanBeanDefinitionParserDelegate.internalParseNestedCustomElement(XBeanBeanDefinitionParserDelegate.java:94)
at
org.apache.xbean.spring.context.v2c.XBeanBeanDefinitionParserDelegate.parsePropertySubElement(XBeanBeanDefinitionParserDelegate.java:51)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseListElement(BeanDefinitionParserDelegate.java:935)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parseListElement(XBeanNamespaceHandler.java:584)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parseNestedPropertyViaIntrospection(XBeanNamespaceHandler.java:577)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.tryParseNestedPropertyViaIntrospection(XBeanNamespaceHandler.java:546)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.addNestedPropertyElements(XBeanNamespaceHandler.java:515)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parseBeanFromExtensionElement(XBeanNamespaceHandler.java:211)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parseBeanFromExtensionElement(XBeanNamespaceHandler.java:256)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parse(XBeanNamespaceHandler.java:152)
at
org.apache.xbean.spring.context.v2.XBeanNamespaceHandler.parse(XBeanNamespaceHandler.java:49)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1147)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1137)
at
org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:145)
at
org.apache.xbean.spring.context.v2.XBeanBeanDefinitionDocumentReader.parseBeanDefinitions(XBeanBeanDefinitionDocumentReader.java:63)
at
org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:89)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:499)
at
org.apache.xbean.spring.context.v2.XBeanXmlBeanDefinitionReader.registerBeanDefinitions(XBeanXmlBeanDefinitionReader.java:79)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:407)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:357)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.loadBeanDefinitions(ResourceXmlApplicationContext.java:111)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.loadBeanDefinitions(ResourceXmlApplicationContext.java:104)
at
org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:94)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:294)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:64)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:52)
at
org.apache.activemq.xbean.XBeanBrokerFactory.createApplicationContext(XBeanBrokerFactory.java:91)
at
org.apache.activemq.xbean.XBeanBrokerFactory.createBroker(XBeanBrokerFactory.java:49)
at
org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:65)
at
org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:51)
at
org.apache.activemq.console.command.StartCommand.startBroker(StartCommand.java:82)
at
org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:47)
... 10 more
ERROR: java.lang.Exception:
org.springframework.beans.factory.BeanDefinitionStoreException: Unrecognized
xbean element mapping: myPlugin in namespace http://activemq.org/config/1.0
java.lang.Exception:
org.springframework.beans.factory.BeanDefinitionStoreException: Unrecognized
xbean element mapping: myPlugin in namespace http://activemq.org/config/1.0
at
org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:71)
at
org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:50)
at
org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand.java:105)
at
org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:50)
at
org.apache.activemq.console.command.ShellCommand.main(ShellCommand.java:77)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.activemq.console.Main.runTaskClass(Main.java:213)
at org.apache.activemq.console.Main.main(Main.java:102)
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException:
Unrecognized xbean element mapping: myPlugin in namespace
http://activemq.org/config/1.0
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parseBeanFromExtensionElement(XBeanNamespaceHandler.java:258)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parse(XBeanNamespaceHandler.java:152)
at
org.apache.xbean.spring.context.v2.XBeanNamespaceHandler.parse(XBeanNamespaceHandler.java:49)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1147)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseNestedCustomElement(BeanDefinitionParserDelegate.java:1185)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.xbean.spring.context.v2c.XBeanBeanDefinitionParserDelegate.internalParseNestedCustomElement(XBeanBeanDefinitionParserDelegate.java:94)
at
org.apache.xbean.spring.context.v2c.XBeanBeanDefinitionParserDelegate.parsePropertySubElement(XBeanBeanDefinitionParserDelegate.java:51)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseListElement(BeanDefinitionParserDelegate.java:935)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parseListElement(XBeanNamespaceHandler.java:584)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parseNestedPropertyViaIntrospection(XBeanNamespaceHandler.java:577)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.tryParseNestedPropertyViaIntrospection(XBeanNamespaceHandler.java:546)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.addNestedPropertyElements(XBeanNamespaceHandler.java:515)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parseBeanFromExtensionElement(XBeanNamespaceHandler.java:211)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parseBeanFromExtensionElement(XBeanNamespaceHandler.java:256)
at
org.apache.xbean.spring.context.v2c.XBeanNamespaceHandler.parse(XBeanNamespaceHandler.java:152)
at
org.apache.xbean.spring.context.v2.XBeanNamespaceHandler.parse(XBeanNamespaceHandler.java:49)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1147)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1137)
at
org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:145)
at
org.apache.xbean.spring.context.v2.XBeanBeanDefinitionDocumentReader.parseBeanDefinitions(XBeanBeanDefinitionDocumentReader.java:63)
at
org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:89)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:499)
at
org.apache.xbean.spring.context.v2.XBeanXmlBeanDefinitionReader.registerBeanDefinitions(XBeanXmlBeanDefinitionReader.java:79)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:407)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:357)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.loadBeanDefinitions(ResourceXmlApplicationContext.java:111)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.loadBeanDefinitions(ResourceXmlApplicationContext.java:104)
at
org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:94)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:294)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:64)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:52)
at
org.apache.activemq.xbean.XBeanBrokerFactory.createApplicationContext(XBeanBrokerFactory.java:91)
at
org.apache.activemq.xbean.XBeanBrokerFactory.createBroker(XBeanBrokerFactory.java:49)
at
org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:65)
at
org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:51)
at
org.apache.activemq.console.command.StartCommand.startBroker(StartCommand.java:82)
at
org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:47)
... 10 more
[/broker log]
I am using ActiveMQ 4.2 trunk, building from source with maven
eclipse:eclipse and eclipse.
What am I missing so that my plugin is recognized in the activemq.xml file?
I have read the docs at http://activemq.apache.org/developing-plugins.html
and http://activemq.apache.org/interceptors.html and others, looked in the
forum, but so far no luck :(
I would be very grateful if you had some tip :)
Thank you in advance for your help :)
David
--
View this message in context:
http://www.nabble.com/Plugin-development-question-tf3524712s2354.html#a9833560
Sent from the ActiveMQ - Dev mailing list archive at Nabble.com.
--
James
-------
http://radio.weblogs.com/0112098/
