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-rw-r--r-- | branches/sca-java-2.0-M2/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/DefaultJavaInterfaceFactory.java | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/branches/sca-java-2.0-M2/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/DefaultJavaInterfaceFactory.java b/branches/sca-java-2.0-M2/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/DefaultJavaInterfaceFactory.java new file mode 100644 index 0000000000..97513fefd9 --- /dev/null +++ b/branches/sca-java-2.0-M2/modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/DefaultJavaInterfaceFactory.java @@ -0,0 +1,99 @@ +/* + * 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.interfacedef.java; + +import java.io.IOException; +import java.util.List; +import java.util.Set; + +import org.apache.tuscany.sca.core.FactoryExtensionPoint; +import org.apache.tuscany.sca.extensibility.ServiceDeclaration; +import org.apache.tuscany.sca.extensibility.ServiceDiscovery; +import org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceFactoryImpl; +import org.apache.tuscany.sca.interfacedef.java.impl.PolicyJavaInterfaceVisitor; +import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor; +import org.apache.tuscany.sca.policy.PolicyFactory; + +/** + * A factory for the Java interface model. + * + * @version $Rev$ $Date$ + */ +public class DefaultJavaInterfaceFactory extends JavaInterfaceFactoryImpl implements JavaInterfaceFactory { + private FactoryExtensionPoint modelFactoryExtensionPoint; + private boolean loadedVisitors; + + public DefaultJavaInterfaceFactory() { + } + + public DefaultJavaInterfaceFactory(FactoryExtensionPoint modelFactoryExtensionPoint) { + this.modelFactoryExtensionPoint = modelFactoryExtensionPoint; + } + + @Override + public List<JavaInterfaceVisitor> getInterfaceVisitors() { + loadVisitors(); + return super.getInterfaceVisitors(); + } + + /** + * Load visitors declared under META-INF/services + */ + @SuppressWarnings("unchecked") + private synchronized void loadVisitors() { + if (loadedVisitors) + return; + + if (modelFactoryExtensionPoint != null) { + PolicyFactory policyFactory = modelFactoryExtensionPoint.getFactory(PolicyFactory.class); + if (policyFactory != null) { + addInterfaceVisitor(new PolicyJavaInterfaceVisitor(policyFactory)); + } + } + + // Get the databinding service declarations + Set<ServiceDeclaration> visitorDeclarations; + try { + visitorDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations(JavaInterfaceVisitor.class.getName()); + } catch (IOException e) { + throw new IllegalStateException(e); + } + + // Load data bindings + for (ServiceDeclaration visitorDeclaration: visitorDeclarations) { + JavaInterfaceVisitor visitor; + try { + Class<JavaInterfaceVisitor> visitorClass = (Class<JavaInterfaceVisitor>)visitorDeclaration.loadClass(); + visitor = visitorClass.newInstance(); + } catch (ClassNotFoundException e) { + throw new IllegalArgumentException(e); + } catch (InstantiationException e) { + throw new IllegalArgumentException(e); + } catch (IllegalAccessException e) { + throw new IllegalArgumentException(e); + } + addInterfaceVisitor(visitor); + } + + loadedVisitors = true; + } + + + +} |