TUSCANY-4034: Move the freeing up of contribution resources to a helper method that can be shared and have that called from remove in Contribution Listener

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1332662 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 62 insertions, 0 deletions

diff --git a/sca-java-2.x/trunk/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/ContributionHelper.java b/sca-java-2.x/trunk/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/ContributionHelper.java
new file mode 100644
index 0000000000..5f45e62036
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/ContributionHelper.java
@@ -0,0 +1,62 @@
+package org.apache.tuscany.sca.impl;

+

+import java.net.URLClassLoader;

+

+import org.apache.tuscany.sca.common.xml.dom.DOMHelper;

+import org.apache.tuscany.sca.contribution.Contribution;

+import org.apache.tuscany.sca.contribution.java.impl.ClassLoaderModelResolver;

+import org.apache.tuscany.sca.contribution.resolver.ClassReference;

+import org.apache.tuscany.sca.contribution.resolver.ExtensibleModelResolver;

+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;

+import org.apache.tuscany.sca.core.ExtensionPointRegistry;

+import org.apache.tuscany.sca.core.FactoryExtensionPoint;

+import org.apache.tuscany.sca.core.UtilityExtensionPoint;

+import org.apache.tuscany.sca.core.invocation.ProxyFactory;

+import org.apache.tuscany.sca.core.invocation.ProxyFactoryExtensionPoint;

+import org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper;

+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;

+

+import sun.misc.ClassLoaderUtil;

+

+public class ContributionHelper {

+

+	public static void close(Contribution contribution, ExtensionPointRegistry extensionPointRegistry) {

+        ClassLoader contributionClassloader = contribution.getClassLoader();  

+

+        if (contributionClassloader == null && contribution.getModelResolver() instanceof ExtensibleModelResolver) {

+            ModelResolver o = ((ExtensibleModelResolver)contribution.getModelResolver()).getModelResolverInstance(ClassReference.class);

+            if (o instanceof ClassLoader) {

+            	contributionClassloader = (ClassLoader)o;        

+            	contribution.setClassLoader(contributionClassloader);

+            }

+        }

+        

+        UtilityExtensionPoint utilityExtensionPoint = extensionPointRegistry.getExtensionPoint(UtilityExtensionPoint.class);

+        FactoryExtensionPoint factoryExtensionPoint = extensionPointRegistry.getExtensionPoint(FactoryExtensionPoint.class);

+

+        JAXBContextHelper jaxbContextHelper = utilityExtensionPoint.getUtility(JAXBContextHelper.class);

+        jaxbContextHelper.removeJAXBContextForContribution(contributionClassloader);

+        

+        JavaInterfaceFactory javaInterfaceFactory = factoryExtensionPoint.getFactory(JavaInterfaceFactory.class);

+        javaInterfaceFactory.removeInterfacesForContribution(contributionClassloader);

+        

+        ProxyFactoryExtensionPoint proxyFactoryExtensionPoint = extensionPointRegistry.getExtensionPoint(ProxyFactoryExtensionPoint.class);

+        ProxyFactory interfaceProxyFactory = proxyFactoryExtensionPoint.getInterfaceProxyFactory();

+        interfaceProxyFactory.removeProxiesForContribution(contributionClassloader);

+

+        DOMHelper.getInstance(extensionPointRegistry).stop();

+        java.beans.Introspector.flushCaches();

+

+        if (contributionClassloader instanceof URLClassLoader) {

+            ClassLoaderUtil.releaseLoader((URLClassLoader)contributionClassloader);

+        }

+

+        if (contributionClassloader instanceof ClassLoaderModelResolver) {

+        	ClassLoaderModelResolver clmr = (ClassLoaderModelResolver) contributionClassloader;

+        	clmr.clear();

+        }

+

+        contribution.setClassLoader(null);

+	}

+	

+}