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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.client.impl;
import java.util.Iterator;
import java.util.List;
import org.apache.tuscany.sca.assembly.ComponentService;
import org.apache.tuscany.sca.assembly.Endpoint;
import org.apache.tuscany.sca.assembly.SCABinding;
import org.apache.tuscany.sca.runtime.DomainRegistry;
import org.oasisopen.sca.NoSuchServiceException;
import org.oasisopen.sca.ServiceRuntimeException;
public class DefaultEndpointFinder implements EndpointFinder {
protected boolean onlySCABinding;
@Override
public Endpoint findEndpoint(DomainRegistry domainRegistry, String serviceName) throws NoSuchServiceException {
List<Endpoint> eps = domainRegistry.findEndpoint(serviceName);
if (eps == null || eps.size() < 1) {
throw new NoSuchServiceException(serviceName);
}
// remove any callback services from the array as we aren't
// expecting SCA clients to connect to callback service
Iterator<Endpoint> iterator = eps.iterator();
while (iterator.hasNext()){
Endpoint ep = iterator.next();
if (ep.getService().isForCallback()){
iterator.remove();
}
}
// If lookup is by component name only and there are multiple matches, verify all matches
// are from the same service. Otherwise it is ambiguous which service the client wants.
if (serviceName.indexOf('/') == -1 && eps.size() > 1) {
ComponentService firstService = eps.get(0).getService();
for (int i=1; i<eps.size(); i++) {
if (firstService != eps.get(i).getService())
throw new ServiceRuntimeException("More than one service is declared on component " + serviceName
+ ". Service name is required to get the service.");
}
}
// If there is an Endpoint using the SCA binding use that
for (Endpoint ep : eps) {
if (SCABinding.TYPE.equals(ep.getBinding().getType())) {
return ep;
}
}
if (onlySCABinding) {
throw new NoSuchServiceException(serviceName + " not found using binding.sca");
}
// There either is a single matching endpoint, or there are multiple endpoints (bindings)
// under a single service. Just choose the first one
return eps.get(0);
}
}
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