diff options
Diffstat (limited to 'branches/2.0-M2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaCallbackRuntimeWireProcessor.java')
-rw-r--r-- | branches/2.0-M2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaCallbackRuntimeWireProcessor.java | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/branches/2.0-M2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaCallbackRuntimeWireProcessor.java b/branches/2.0-M2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaCallbackRuntimeWireProcessor.java new file mode 100644 index 0000000000..ef4e67d79a --- /dev/null +++ b/branches/2.0-M2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaCallbackRuntimeWireProcessor.java @@ -0,0 +1,106 @@ +/* + * 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.invocation; + +import java.util.logging.Level; +import java.util.logging.Logger; + +import org.apache.tuscany.sca.assembly.Contract; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.core.invocation.CallbackInterfaceInterceptor; +import org.apache.tuscany.sca.implementation.java.JavaImplementation; +import org.apache.tuscany.sca.interfacedef.Interface; +import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper; +import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException; +import org.apache.tuscany.sca.interfacedef.java.JavaInterface; +import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory; +import org.apache.tuscany.sca.invocation.InvocationChain; +import org.apache.tuscany.sca.invocation.Phase; +import org.apache.tuscany.sca.runtime.EndpointReference; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentReference; +import org.apache.tuscany.sca.runtime.RuntimeWire; +import org.apache.tuscany.sca.runtime.RuntimeWireProcessor; + +/** + * @version $Rev$ $Date$ + */ +public class JavaCallbackRuntimeWireProcessor implements RuntimeWireProcessor { + private static final Logger logger = Logger.getLogger(JavaCallbackRuntimeWireProcessor.class.getName()); + private InterfaceContractMapper interfaceContractMapper; + private JavaInterfaceFactory javaInterfaceFactory; + + /** + * @param interfaceContractMapper + * @param javaInterfaceFactory + */ + public JavaCallbackRuntimeWireProcessor(InterfaceContractMapper interfaceContractMapper, + JavaInterfaceFactory javaInterfaceFactory) { + super(); + this.interfaceContractMapper = interfaceContractMapper; + this.javaInterfaceFactory = javaInterfaceFactory; + } + + public void process(RuntimeWire wire) { + addCallbackInterfaceInterceptors(wire); + } + + private void addCallbackInterfaceInterceptors(RuntimeWire wire) { + Contract contract = wire.getSource().getContract(); + if (!(contract instanceof RuntimeComponentReference)) { + return; + } + RuntimeComponent component = wire.getSource().getComponent(); + Implementation implementation = component.getImplementation(); + if (!(implementation instanceof JavaImplementation)) { + return; + } + JavaImplementation javaImpl = (JavaImplementation)implementation; + EndpointReference callbackEndpoint = wire.getSource().getCallbackEndpoint(); + if (callbackEndpoint != null) { + Interface iface = callbackEndpoint.getContract().getInterfaceContract().getInterface(); + if (!supportsCallbackInterface(iface, javaImpl)) { + // callback to this impl is not possible, so ensure a callback object is set + for (InvocationChain chain : wire.getInvocationChains()) { + chain.addInterceptor(Phase.REFERENCE, new CallbackInterfaceInterceptor()); + } + } + } + } + + private boolean supportsCallbackInterface(Interface iface, JavaImplementation impl) { + if (iface instanceof JavaInterface) { + Class<?> ifaceClass = ((JavaInterface)iface).getJavaClass(); + if (ifaceClass.isAssignableFrom(impl.getJavaClass())) { + return true; + } + } + try { + Interface implType = javaInterfaceFactory.createJavaInterface(impl.getJavaClass()); + // Ignore the remotable/conversational testing + implType.setRemotable(iface.isRemotable()); + implType.setConversational(iface.isConversational()); + return interfaceContractMapper.isCompatible(iface, implType); + } catch (InvalidInterfaceException e) { + logger.log(Level.WARNING, e.getMessage(), e); + return false; + } + } +} |