Include in cache configuration?

Question

I would like to define a "corporate" cache configuration file that later can be included and extended by project cache configuration files. I have seen some hints that this is supported by the Common package in the incubator but I have not seen any examples or documentation about how to do it. I know that I must specify the ExtensibleEnvironment as initialisation handler but what does the XML required look like? Can (should) both the included and the including cache configuration files be complete cache configuration files (verifyable against the XML schema) or should the included file just be a fragment that is legal to include at the point where it is inserted?
Any links or examples are very much appreciated!
Note I am not an XML guru so try to keep the explanation simple and try to provide complete examples not just "snippets" - to get all the new schema XML stuff to just validate without the added complexity of commons name spaces is a challenge to me :-)
/Magnus
Edited by: MagnusE on Jul 13, 2011 6:04 PM

Answer 1

Hi user738616,
I have the same MagnusE problem,
but in my case I have both the coherence-common jar inside my classpath and both the introduce namespace correctly defined inside my configuration file:
Here is my cache config file, named "poc-coherence-cache-config.xml":
<cache-config
     xmlns:introduce="class://com.oracle.coherence.environment.extensible.namespaces.IntroduceNamespaceContentHandler"
     >
     <introduce:config file="coherence-messagingpattern-cache-config.xml"/>
     <caching-scheme-mapping>
     </caching-scheme-mapping>
     <caching-schemes>
     </caching-schemes>
</cache-config>Which I load using defining the system property to load this override file:"poc-tangosol-coherence-override.xml", which is as follows:
<?xml version='1.0'?>
<coherence>
     <configurable-cache-factory-config>
          <class-name>com.oracle.coherence.environment.extensible.ExtensibleEnvironment
          </class-name>
          <init-params>
               <init-param>
                    <param-type>java.lang.String</param-type>
                    <param-value system-property="tangosol.coherence.cacheconfig">
                    poc-coherence-cache-config.xml</param-value>
               </init-param>
          </init-params>
     </configurable-cache-factory-config>
     <cluster-config>
          <member-identity>
               <cluster-name system-property="tangosol.coherence.cluster">
                    Coherence_PoC_Cluster
               </cluster-name>
          </member-identity>
          <multicast-listener>
               <time-to-live system-property="tangosol.coherence.ttl">1</time-to-live>
               <join-timeout-milliseconds>5000</join-timeout-milliseconds>
               <address system-property="tangosol.coherence.clusteraddress">239.1.5.0</address> <!-- 224.13.16.10 -->
               <port system-property="tangosol.coherence.clusterport">3030</port>
          </multicast-listener>
     </cluster-config>
     <logging-config>
          <destination system-property="tangosol.coherence.log">log4j</destination>
          <severity-level system-property="tangosol.coherence.log.level">10</severity-level>
          <character-limit system-property="tangosol.coherence.log.limit">0</character-limit>
     </logging-config>
</coherence>But I still get the same exception:
2011-08-03 11:48:54,416 INFO [Logger@8079107 3.7.0.0] Coherence [Log4j.CDB:3] 2011-08-03 11:48:54.320/2.246 Oracle Coherence 3.7.0.0 <Info> (thread=main, member=n/a): Loaded operational configuration from "jar:file:/C:/Users/.../.m2/repository/com/oracle/oracle-coherence/3.7.0/oracle-coherence-3.7.0.jar!/tangosol-coherence.xml"
2011-08-03 11:48:54,417 INFO [Logger@8079107 3.7.0.0] Coherence [Log4j.CDB:3] 2011-08-03 11:48:54.322/2.248 Oracle Coherence 3.7.0.0 <Info> (thread=main, member=n/a): Loaded operational overrides from "file:/C:/.../coherence-config/target/classes/poc-tangosol-coherence-override.xml"
2011-08-03 11:48:54,498 INFO [Logger@8079107 3.7.0.0] Coherence [Log4j.CDB:3] 2011-08-03 11:48:54.494/2.420 Oracle Coherence GE 3.7.0.0 <Info> (thread=main, member=n/a): Loaded cache configuration from "file:/C:/.../coherence-config/target/classes/poc-coherence-cache-config.xml"
Exception in thread "main" (Wrapped: Failed to load the factory) (Wrapped: Missing or inaccessible constructor "com.oracle.coherence.environment.extensible.ExtensibleEnvironment(String)"
<configurable-cache-factory-config>
  <class-name>com.oracle.coherence.environment.extensible.ExtensibleEnvironment</class-name>
  <init-params>
    <init-param>
      <param-type>java.lang.String</param-type>
      <param-value>poc-coherence-cache-config.xml</param-value>
    </init-param>
  </init-params>
</configurable-cache-factory-config>) java.lang.reflect.InvocationTargetException
     at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)
     at com.tangosol.net.ScopedCacheFactoryBuilder.getDefaultFactory(ScopedCacheFactoryBuilder.java:308)
     at com.tangosol.net.DefaultCacheFactoryBuilder.getSingletonFactory(DefaultCacheFactoryBuilder.java:48)
     at com.tangosol.net.DefaultCacheFactoryBuilder.getFactory(DefaultCacheFactoryBuilder.java:121)
     at com.tangosol.net.ScopedCacheFactoryBuilder.getConfigurableCacheFactory(ScopedCacheFactoryBuilder.java:109)
     at com.tangosol.net.CacheFactory.getConfigurableCacheFactory(CacheFactory.java:126)
     at com.tangosol.net.CacheFactory.getCache(CacheFactory.java:204)
     at com.tangosol.net.CacheFactory.getCache(CacheFactory.java:181)
     at poc.datagrid.coherence.impl.PartitionCoherence.<init>(PartitionCoherence.java:26)
     at poc.datagrid.coherence.impl.GridCoherence.get(GridCoherence.java:14)
     at poc.eventcollector.jmx.TournamentBean.<init>(TournamentBean.java:19)
     at poc.eventcollector.main.EventCollectorMain.main(EventCollectorMain.java:52)
Caused by: (Wrapped: Missing or inaccessible constructor "com.oracle.coherence.environment.extensible.ExtensibleEnvironment(String)"
<configurable-cache-factory-config>
  <class-name>com.oracle.coherence.environment.extensible.ExtensibleEnvironment</class-name>
  <init-params>
    <init-param>
      <param-type>java.lang.String</param-type>
      <param-value>poc-coherence-cache-config.xml</param-value>
    </init-param>
  </init-params>
</configurable-cache-factory-config>) java.lang.reflect.InvocationTargetException
     at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)
     at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2608)
     at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2492)
     at com.tangosol.net.ScopedCacheFactoryBuilder.getDefaultFactory(ScopedCacheFactoryBuilder.java:270)
     ... 10 more
Caused by: java.lang.reflect.InvocationTargetException
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
     at com.tangosol.util.ClassHelper.newInstance(ClassHelper.java:694)
     at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2567)
     ... 12 more
Caused by: java.lang.RuntimeException: Can't instantiate the NamespaceContentHandler [com.oracle.coherence.environment.extensible.namespaces.IntroduceNamespaceContentHandler] as the class is not found
     at com.oracle.coherence.environment.extensible.DefaultConfigurationContext$Scope.establishNamespaceContentHandlerFor(DefaultConfigurationContext.java:1145)
     at com.oracle.coherence.environment.extensible.DefaultConfigurationContext.ensureNamespaceContentHandler(DefaultConfigurationContext.java:119)
     at com.oracle.coherence.environment.extensible.DefaultConfigurationContext.processElement(DefaultConfigurationContext.java:282)
     at com.oracle.coherence.environment.extensible.DefaultConfigurationContext.processDocument(DefaultConfigurationContext.java:230)
     at com.oracle.coherence.environment.extensible.ExtensibleEnvironment.setConfig(ExtensibleEnvironment.java:469)
     at com.tangosol.net.DefaultConfigurableCacheFactory.<init>(DefaultConfigurableCacheFactory.java:190)
     at com.tangosol.net.DefaultConfigurableCacheFactory.<init>(DefaultConfigurableCacheFactory.java:176)
     at com.tangosol.net.DefaultConfigurableCacheFactory.<init>(DefaultConfigurableCacheFactory.java:152)
     at com.oracle.coherence.environment.extensible.ExtensibleEnvironment.<init>(ExtensibleEnvironment.java:155)
     ... 18 more
Caused by: java.lang.ClassNotFoundException: com.oracle.coherence.environment.extensible.namespaces.IntroduceNamespaceContentHandler
     at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:169)
     at com.tangosol.util.ExternalizableHelper.loadClass(ExternalizableHelper.java:3056)
     at com.oracle.coherence.environment.extensible.DefaultConfigurationContext$Scope.establishNamespaceContentHandlerFor(DefaultConfigurationContext.java:1109)
     ... 26 moreDo you have any ideas ?