diff options
author | antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68> | 2009-10-30 12:18:56 +0000 |
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committer | antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68> | 2009-10-30 12:18:56 +0000 |
commit | 7abf5a347d0f5dc9a54cd6c443daafae9f4976fc (patch) | |
tree | 99776d825d680d1f9ee4403336018ce9740b8be2 /tags/java/sca/2.0-M4-RC1/modules/implementation-java/src/main/java/org/apache/tuscany/sca/implementation/java/impl/JavaImplementationFactoryImpl.java | |
parent | b003942c4e5046a2a480d1db7d49f1936c4e0f6c (diff) |
Re-tag 2.0-M4 RC1 release
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@831279 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'tags/java/sca/2.0-M4-RC1/modules/implementation-java/src/main/java/org/apache/tuscany/sca/implementation/java/impl/JavaImplementationFactoryImpl.java')
-rw-r--r-- | tags/java/sca/2.0-M4-RC1/modules/implementation-java/src/main/java/org/apache/tuscany/sca/implementation/java/impl/JavaImplementationFactoryImpl.java | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M4-RC1/modules/implementation-java/src/main/java/org/apache/tuscany/sca/implementation/java/impl/JavaImplementationFactoryImpl.java b/tags/java/sca/2.0-M4-RC1/modules/implementation-java/src/main/java/org/apache/tuscany/sca/implementation/java/impl/JavaImplementationFactoryImpl.java new file mode 100644 index 0000000000..aefc5c7e6b --- /dev/null +++ b/tags/java/sca/2.0-M4-RC1/modules/implementation-java/src/main/java/org/apache/tuscany/sca/implementation/java/impl/JavaImplementationFactoryImpl.java @@ -0,0 +1,136 @@ +/* + * 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.implementation.java.impl; + +import java.io.IOException; +import java.lang.reflect.Constructor; +import java.util.ArrayList; +import java.util.Collection; +import java.util.List; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.extensibility.ServiceDeclaration; +import org.apache.tuscany.sca.extensibility.ServiceDiscovery; +import org.apache.tuscany.sca.implementation.java.IntrospectionException; +import org.apache.tuscany.sca.implementation.java.JavaImplementation; +import org.apache.tuscany.sca.implementation.java.JavaImplementationFactory; +import org.apache.tuscany.sca.implementation.java.introspect.JavaClassVisitor; + + +/** + * A factory for the Java model. + * + * @version $Rev$ $Date$ + */ +public abstract class JavaImplementationFactoryImpl implements JavaImplementationFactory { + + private List<JavaClassVisitor> visitors = new ArrayList<JavaClassVisitor>(); + private JavaClassIntrospectorImpl introspector; + private boolean loaded; + protected ExtensionPointRegistry registry; + + public JavaImplementationFactoryImpl(ExtensionPointRegistry registry) { + this.registry = registry; + } + + public JavaImplementation createJavaImplementation() { + JavaImplementation javaImplementation = new JavaImplementationImpl(); + return javaImplementation; + } + + public JavaImplementation createJavaImplementation(Class<?> implementationClass) throws IntrospectionException { + JavaImplementation javaImplementation = createJavaImplementation(); + getIntrospector().introspectClass(javaImplementation, implementationClass); + return javaImplementation; + } + + public void createJavaImplementation(JavaImplementation javaImplementation, Class<?> implementationClass) throws IntrospectionException { + getIntrospector().introspectClass(javaImplementation, implementationClass); + } + + public void addClassVisitor(JavaClassVisitor visitor) { + for (JavaClassVisitor tmpVisitor : visitors){ + if (tmpVisitor.getClass() == visitor.getClass()){ + // trying to add a duplicate visitor so + // ignore it + return; + } + } + visitors.add(visitor); + } + + public void removeClassVisitor(JavaClassVisitor visitor) { + visitors.remove(visitor); + } + + public List<JavaClassVisitor> getClassVisitors() { + loadVisitors(); + return visitors; + } + + /** + * Load visitors declared under META-INF/services + */ + @SuppressWarnings("unchecked") + private synchronized void loadVisitors() { + if (loaded) + return; + + // Get the databinding service declarations + Collection<ServiceDeclaration> visitorDeclarations; + try { + visitorDeclarations = registry.getServiceDiscovery().getServiceDeclarations(JavaClassVisitor.class, true); + } catch (IOException e) { + throw new IllegalStateException(e); + } + + // Load data bindings + for (ServiceDeclaration visitorDeclaration: visitorDeclarations) { + JavaClassVisitor visitor = null; + try { + Class<JavaClassVisitor> visitorClass = (Class<JavaClassVisitor>)visitorDeclaration.loadClass(); + + try { + Constructor<JavaClassVisitor> constructor = visitorClass.getConstructor(ExtensionPointRegistry.class); + visitor = constructor.newInstance(registry); + } catch (NoSuchMethodException e) { + visitor = visitorClass.newInstance(); + } + + + } catch (Exception e) { + IllegalStateException ie = new IllegalStateException(e); + throw ie; + } + + addClassVisitor(visitor); + } + + loaded = true; + } + + private synchronized JavaClassIntrospectorImpl getIntrospector() { + if (introspector != null) { + return introspector; + } + introspector = new JavaClassIntrospectorImpl(getClassVisitors()); + return introspector; + } + +} |