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/*
* 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 sampleasync.impl;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import java.util.Map;
import org.apache.tuscany.sca.assembly.EndpointReference;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.invocation.Constants;
import org.apache.tuscany.sca.interfacedef.Interface;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.invocation.MessageFactory;
import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
import org.w3c.dom.Element;
import sample.api.WSDLReference;
/**
* Proxy used to call operations on WSDL references.
*/
class SampleWSDLProxy implements WSDLReference {
final RuntimeEndpointReference repr;
final Map<String, Operation> ops;
final ExtensionPointRegistry ep;
final MessageFactory mf;
Map<String, Object> asyncMessageMap;
SampleWSDLProxy(Map<String, Object> asyncMessageMap, EndpointReference epr, Interface wi, ExtensionPointRegistry ep) {
this.asyncMessageMap = asyncMessageMap;
this.ep = ep;
mf = ep.getExtensionPoint(MessageFactory.class);
repr = (RuntimeEndpointReference)epr;
ops = new HashMap<String, Operation>();
for(Operation o: wi.getOperations())
ops.put(o.getName(), o);
}
@Override
public Element call(String op, Element e) {
try {
// Invoke the named operation on the endpoint reference
return (Element)repr.invoke(ops.get(op), new Object[] {e});
} catch(InvocationTargetException ex) {
throw new RuntimeException(ex);
}
}
@Override
public void callAsync(String op, Element e) {
// Asynchronously invoke the named operation on the endpoint reference
Message message = mf.createMessage();
message.setBody(new Object[]{e});
// We could MESSAGE_ID here if required. If not the infrastructure
// will generate a UUID
String messageID = "myuniqueid";
message.getHeaders().put(Constants.MESSAGE_ID, messageID);
// save the message id ready for when we process the response
asyncMessageMap.put(messageID, op);
// We could add implementation specific headers here if required
//message.getHeaders().put(Constants.???, ???);
try {
repr.invokeAsync(ops.get(op), message);
} catch (Throwable ex) {
ex.printStackTrace();
}
// if we don't provide a message id we can get the one the
// infrastructure generates
//String messageID = (String) message.getHeaders().get(Constants.MESSAGE_ID);
//asyncMessageMap.put(messageID, op);
}
}
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