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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.net.URI;
import java.util.List;
import org.apache.tuscany.sca.node.Node;
import org.apache.tuscany.sca.node.NodeFinder;
import org.oasisopen.sca.NoSuchDomainException;
import org.oasisopen.sca.NoSuchServiceException;
import org.oasisopen.sca.ServiceUnavailableException;
import org.oasisopen.sca.client.SCAClient;
public class SCAClientImpl implements SCAClient {
public <T> T getService(Class<T> serviceInterface, String serviceName, URI domainURI)
throws NoSuchServiceException, NoSuchDomainException {
if (domainURI == null) {
domainURI = URI.create(Node.DEFAULT_DOMAIN_URI);
}
List<Node> nodes = NodeFinder.getNodes(domainURI);
if (nodes == null || nodes.size() < 1) {
throw new NoSuchDomainException(domainURI.toString());
}
for (Node n : nodes) {
try {
return n.getService(serviceInterface, serviceName);
} catch(ServiceUnavailableException e) {
// Ingore and continue
}
}
throw new NoSuchServiceException(serviceName);
}
}
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