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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.sca.provider;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.UtilityExtensionPoint;
import org.apache.tuscany.sca.interfacedef.InterfaceContract;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.provider.EndpointReferenceAsyncProvider;
import org.apache.tuscany.sca.provider.EndpointReferenceProvider;
import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
import org.apache.tuscany.sca.provider.SCABindingMapper;
import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
/**
* The sca reference binding provider mediates between the twin requirements of
* local sca bindings and remote sca bindings. In the local case is does
* very little. When the sca binding model is set as being remote (because a
* reference target can't be resolved in the current model) this binding will
* try and create a remote connection to it
*
* @version $Rev$ $Date$
*/
public class RuntimeSCAReferenceBindingProvider implements EndpointReferenceAsyncProvider {
private RuntimeEndpointReference endpointReference;
private boolean started = false;
private ReferenceBindingProvider delegatingBindingProvider;
private SCABindingMapper scaBindingMapper;
public RuntimeSCAReferenceBindingProvider(ExtensionPointRegistry extensionPoints,
RuntimeEndpointReference endpointReference) {
this.endpointReference = endpointReference;
UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
this.scaBindingMapper = utilities.getUtility(SCABindingMapper.class);
getDelegatingProvider();
}
private ReferenceBindingProvider getDelegatingProvider() {
if (delegatingBindingProvider == null) {
delegatingBindingProvider = new DelegatingSCAReferenceBindingProvider(endpointReference, scaBindingMapper);
}
return delegatingBindingProvider;
}
public InterfaceContract getBindingInterfaceContract() {
return delegatingBindingProvider.getBindingInterfaceContract();
}
public boolean supportsOneWayInvocation() {
return delegatingBindingProvider.supportsOneWayInvocation();
}
public Invoker createInvoker(Operation operation) {
return delegatingBindingProvider.createInvoker(operation);
}
public void start() {
if (started) {
return;
}
getDelegatingProvider().start();
started = true;
}
public void stop() {
if (!started) {
return;
}
try {
getDelegatingProvider().stop();
} finally {
started = false;
}
}
public void configure() {
if (getDelegatingProvider() instanceof EndpointReferenceProvider) {
((EndpointReferenceProvider)getDelegatingProvider()).configure();
}
}
public boolean supportsNativeAsync() {
return ((EndpointReferenceAsyncProvider)delegatingBindingProvider).supportsNativeAsync();
}
public RuntimeEndpointReference getDelegateEndpointReference(){
return ((DelegatingSCAReferenceBindingProvider)delegatingBindingProvider).getDelegateEndpointReference();
}
}
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