diff options
Diffstat (limited to 'tags/java/sca/2.0-M3-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java')
| -rw-r--r-- | tags/java/sca/2.0-M3-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/tags/java/sca/2.0-M3-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java b/tags/java/sca/2.0-M3-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java deleted file mode 100644 index 11e13ced11..0000000000 --- a/tags/java/sca/2.0-M3-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java +++ /dev/null @@ -1,159 +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.security.AccessController;
-import java.security.PrivilegedAction;
-import java.util.HashMap;
-import java.util.Map;
-
-import org.apache.tuscany.sca.contribution.Contribution;
-import org.apache.tuscany.sca.contribution.resolver.ClassReference;
-import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
-import org.apache.tuscany.sca.core.FactoryExtensionPoint;
-import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
-
-/**
- * A Model Resolver for ClassReferences.
- * @deprecated Use ClassLoaderModelResolver instead
- * @version $Rev: 557916 $ $Date: 2007-07-20 01:04:40 -0700 (Fri, 20 Jul 2007) $
- */
-@Deprecated()
-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(final Contribution contribution, FactoryExtensionPoint modelFactories) {
- this.contribution = contribution;
- if (this.contribution != null) {
- // Allow privileged access to get ClassLoader. Requires RuntimePermission in security policy.
- // ClassLoader cl = contribution.getClassLoader();
- ClassLoader cl = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
- public ClassLoader run() {
- return contribution.getClassLoader();
- }
- });
-
- if (cl == null) {
- // Allow privileged access to get ClassLoader. Requires RuntimePermission in security policy.
- //ClassLoader contextClassLoader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
- // public ClassLoader run() {
- // return Thread.currentThread().getContextClassLoader();
- // }
- //});
- ClassLoader contextClassLoader = ServiceDiscovery.getInstance().getServiceDiscoverer().getClass().getClassLoader();
- cl = new ContributionClassLoader(contribution, contextClassLoader);
- contribution.setClassLoader(cl);
- }
- this.classLoader = new WeakReference<ClassLoader>(cl);
- } else {
- // This path should be used only for unit testing.
- // Allow privileged access to get ClassLoader. Requires RuntimePermission in security policy.
- // this.classLoader = new WeakReference<ClassLoader>(this.getClass().getClassLoader());
- ClassLoader cl = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
- public ClassLoader run() {
- return this.getClass().getClassLoader();
- }
- });
- this.classLoader = new WeakReference<ClassLoader>( cl );
- }
-
- try {
- Class<?> osgiResolverClass =
- Class.forName("org.apache.tuscany.sca.contribution.osgi.impl.OSGiClassReferenceModelResolver");
- if (osgiResolverClass != null) {
- Constructor<?> constructor =
- osgiResolverClass.getConstructor(Contribution.class, FactoryExtensionPoint.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 wrapping 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);
- }
-
-}
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