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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta2/samples/extending-tuscany/implementation-sample/src/main/java/sample/impl/SampleWSDLInvoker.java | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta2/samples/extending-tuscany/implementation-sample/src/main/java/sample/impl/SampleWSDLInvoker.java b/sca-java-2.x/tags/2.0-Beta2/samples/extending-tuscany/implementation-sample/src/main/java/sample/impl/SampleWSDLInvoker.java new file mode 100644 index 0000000000..5c76cfd90a --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta2/samples/extending-tuscany/implementation-sample/src/main/java/sample/impl/SampleWSDLInvoker.java @@ -0,0 +1,134 @@ +/* + * 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 sample.impl; + +import java.io.FileInputStream; +import java.io.FileOutputStream; +import java.io.ObjectInputStream; +import java.io.ObjectOutputStream; +import java.lang.reflect.Method; + +import org.apache.tuscany.sca.core.invocation.AsyncResponseInvoker; +import org.apache.tuscany.sca.core.invocation.InterceptorAsyncImpl; +import org.apache.tuscany.sca.interfacedef.wsdl.WSDLOperation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; +import org.apache.tuscany.sca.runtime.RuntimeEndpoint; +import org.oasisopen.sca.ServiceRuntimeException; +import org.w3c.dom.Element; + +/** + * Invoker for Sample components that implement a WSDL interface using a generic + * call method. + * + * @version $Rev$ $Date$ + */ +class SampleWSDLInvoker extends InterceptorAsyncImpl { + final String name; + final Object instance; + final Method method; + + SampleWSDLInvoker(final WSDLOperation op, final Class<?> clazz, final Object instance) throws SecurityException, NoSuchMethodException { + this.name = op.getName(); + this.instance = instance; + this.method = clazz.getMethod("call", String.class, Element.class); + } + + public Invoker getNext() { + // Can't get next for an implementation invoker + return null; + } + + public Message invoke(final Message msg) { + return processRequest(msg); + } + + public void invokeAsyncRequest(Message msg) { + if (msg.getOperation().getName().equals("upper")){ + // Retrieve the async callback information + AsyncResponseInvoker respInvoker = (AsyncResponseInvoker)msg.getHeaders().get("ASYNC_RESPONSE_INVOKER"); + if( respInvoker == null ) throw new ServiceRuntimeException("Async Implementation invoked with no response invoker"); + + Message responseMsg = processRequest(msg); + + // in this sample programming model we make the async + // response from the implementation provider. The + // component implementation itself doesn't get a chance to + // do async responses. + + // At this point we could serialize the AsyncResponseInvoker and pick it up again + // later to send the async response + + try { + FileOutputStream fos = new FileOutputStream("ari.dat"); + ObjectOutputStream oos = new ObjectOutputStream(fos); + oos.writeObject(respInvoker); + oos.close(); + respInvoker.invokeAsyncResponse(responseMsg); + } catch (Exception ex) { + ex.printStackTrace(); + } + + } else if (msg.getOperation().getName().equals("upper2")){ + Message responseMsg = processRequest(msg); + + // read the async response invoker back in and call it + FileInputStream fis = null; + ObjectInputStream ois = null; + try { + fis = new FileInputStream("ari.dat"); + ois = new ObjectInputStream(fis); + AsyncResponseInvoker respInvoker = (AsyncResponseInvoker) ois.readObject(); + ois.close(); + respInvoker.invokeAsyncResponse(responseMsg); + } catch (Exception ex) { + ex.printStackTrace(); + } + } else { + // Retrieve the async callback information + AsyncResponseInvoker respInvoker = (AsyncResponseInvoker)msg.getHeaders().get("ASYNC_RESPONSE_INVOKER"); + if( respInvoker == null ) throw new ServiceRuntimeException("Async Implementation invoked with no response invoker"); + + Message responseMsg = processRequest(msg); + + if (responseMsg.getBody() != null){ + respInvoker.invokeAsyncResponse(responseMsg); + } + } + + } // end method invokeAsyncRequest + + public Message processRequest(Message msg) { + try { + //AsyncHeader asyncHeader = (String) message.getHeaders().get("ASYNC-HEADER"); + // Invoke the generic call method + Object response = method.invoke(instance, name, ((Object[])msg.getBody())[0]); + msg.setBody(response); + } catch(Exception e) { + e.printStackTrace(); + msg.setFaultBody(e.getCause()); + } + return msg; + } + + public Message processResponse(Message msg) { + return msg; + } +} |