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Diffstat (limited to 'branches/sca-java-1.2/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java')
-rw-r--r-- | branches/sca-java-1.2/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/branches/sca-java-1.2/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java b/branches/sca-java-1.2/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java deleted file mode 100644 index 4946002b14..0000000000 --- a/branches/sca-java-1.2/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java +++ /dev/null @@ -1,134 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.contribution.java.impl; - -import java.lang.ref.WeakReference; -import java.lang.reflect.Constructor; -import java.util.HashMap; -import java.util.Map; - -import org.apache.tuscany.sca.contribution.Contribution; -import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; -import org.apache.tuscany.sca.contribution.resolver.ClassReference; -import org.apache.tuscany.sca.contribution.resolver.ModelResolver; - -/** - * A Model Resolver for ClassReferences. - * - * @version $Rev: 557916 $ $Date: 2007-07-20 01:04:40 -0700 (Fri, 20 Jul 2007) $ - */ -public class ClassReferenceModelResolver implements ModelResolver { - private Contribution contribution; - private WeakReference<ClassLoader> classLoader; - private Map<String, ClassReference> map = new HashMap<String, ClassReference>(); - - private ModelResolver osgiResolver; - - public ClassReferenceModelResolver(Contribution contribution, ModelFactoryExtensionPoint modelFactories) { - this.contribution = contribution; - if (this.contribution != null) { - ClassLoader cl = contribution.getClassLoader(); - if (contribution.getClassLoader() == null) { - cl = new ContributionClassLoader(contribution, null); - contribution.setClassLoader(cl); - } - this.classLoader = new WeakReference<ClassLoader>(cl); - } else { - // This path should be used only for unit testing. - this.classLoader = new WeakReference<ClassLoader>(this.getClass().getClassLoader()); - } - - try { - Class<?> osgiResolverClass = - Class.forName("org.apache.tuscany.sca.contribution.osgi.impl.OSGiClassReferenceModelResolver"); - if (osgiResolverClass != null) { - Constructor constructor = - osgiResolverClass.getConstructor(Contribution.class, ModelFactoryExtensionPoint.class); - this.osgiResolver = (ModelResolver)constructor.newInstance(contribution, modelFactories); - } - } catch (Throwable e) { - // Ignore error, non-OSGi classloading is used in this case - } - } - - public void addModel(Object resolved) { - ClassReference clazz = (ClassReference)resolved; - map.put(clazz.getClassName(), clazz); - } - - public Object removeModel(Object resolved) { - return map.remove(((ClassReference)resolved).getClassName()); - } - - - - public <T> T resolveModel(Class<T> modelClass, T unresolved) { - if (!(unresolved instanceof ClassReference)) { - return unresolved; - } - Object resolved = map.get(((ClassReference)unresolved).getClassName()); - - if (resolved != null) { - return modelClass.cast(resolved); - } - - //Load a class on demand - Class clazz = null; - - if (osgiResolver != null) { - resolved = osgiResolver.resolveModel(modelClass, unresolved); - clazz = ((ClassReference)resolved).getJavaClass(); - } - - if (clazz == null) { - try { - // Search contribution classloader (which has visibility of classes in the contribution - // as well as explicitly imported packages from other contributions) - clazz = Class.forName(((ClassReference)unresolved).getClassName(), true, classLoader.get()); - } catch (ClassNotFoundException e) { - } catch (NoClassDefFoundError e) { - } - } - - if (clazz != null) { - //if we load the class - // Store a new ClassReference wrappering the loaded class - ClassReference classReference = new ClassReference(clazz); - map.put(clazz.getName(), classReference); - - // Return the resolved ClassReference - return modelClass.cast(classReference); - } else { - return unresolved; - } - - } - - - /*************** - * Helper methods - ***************/ - - private String getPackageName(ClassReference clazz) { - int pos = clazz.getClassName().lastIndexOf("."); - return clazz.getClassName().substring(0, pos); - } - -} |