diff options
author | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:26:33 +0000 |
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committer | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:26:33 +0000 |
commit | a40e527938d76ba71f211da7e327adb50384ba69 (patch) | |
tree | cb8f99f1727122b040a3f0fbb6649292b6a74302 /sca-java-1.x/tags/1.3.2/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationInvoker.java | |
parent | 968721109881107520d7aefa91d7fcc0519d7739 (diff) |
Moving 1.x tags
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835157 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sca-java-1.x/tags/1.3.2/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationInvoker.java')
-rw-r--r-- | sca-java-1.x/tags/1.3.2/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationInvoker.java | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.3.2/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationInvoker.java b/sca-java-1.x/tags/1.3.2/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationInvoker.java new file mode 100644 index 0000000000..87333c61f6 --- /dev/null +++ b/sca-java-1.x/tags/1.3.2/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationInvoker.java @@ -0,0 +1,68 @@ +/* + * 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 pojo.provider; + +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; + +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; +import org.osoa.sca.ServiceRuntimeException; + +/** + * Implements an invoker for POJO component implementations. + * + * The invoker is responsible for handling invocations of a business operation. + * Input business data is passed to the invoke method in a Message object. + * The invoke method is responsible for handling the invocation and returning a Message with + * the output business data. + * + * In this example we are simply delegating the operation invocations to the + * corresponding methods on the POJO implementation class using Java reflection. + * + * Depending on the type of implementation being handled, more sophisticated invokers can + * use other techniques to delegate the invocation to the implementation artifact directly, call a + * runtime engine like a BPEL engine or an XQuery engine (this is what the Tuscany + * implementation-bpel and implementation-xquery extensions do) or just completely handle the + * invocation in the invoker itself if the implementation has a fixed behavior for example. + */ +class POJOImplementationInvoker implements Invoker { + + private Object pojoInstance; + private Method method; + + POJOImplementationInvoker(Object pojoInstance, Operation operation, Method method) { + this.pojoInstance = pojoInstance; + this.method = method; + } + + public Message invoke(Message msg) { + try { + msg.setBody(method.invoke(pojoInstance, (Object[])msg.getBody())); + } catch (InvocationTargetException e) { + msg.setFaultBody(e); + } catch (Exception e) { + throw new ServiceRuntimeException(e); + } + return msg; + } + +} |