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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 org.apache.tuscany.sca.binding.event.impl;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.invocation.DataExchangeSemantics;
import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
/**
* Event binding invoker
* @version $$
*/
public class EventBindingInvoker implements Invoker, DataExchangeSemantics {
private Invoker baseInvoker;
/**
* Construct a EventBindingInvoker that delegates to the service invocation chain
* @param chain
*/
public EventBindingInvoker(ReferenceBindingProvider baseBindingProvider, Operation operation) {
super();
// TODO: Should we match producer event types with the event types of the operation?
baseInvoker = baseBindingProvider.createInvoker(operation);
}
/**
* @see org.apache.tuscany.sca.invocation.Invoker#invoke(org.apache.tuscany.sca.invocation.Message)
*/
public Message invoke(Message msg) {
if (baseInvoker != null) {
return baseInvoker.invoke(msg);
}
else {
msg.setBody(null);
return msg;
}
}
/**
* @see org.apache.tuscany.sca.invocation.DataExchangeSemantics#allowsPassByReference()
*/
public boolean allowsPassByReference() {
return true;
}
}
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