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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.jms.policy;
import java.net.URI;
import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedExceptionAction;
import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint;
import org.apache.tuscany.sca.contribution.service.ContributionReadException;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.definitions.SCADefinitions;
import org.apache.tuscany.sca.provider.SCADefinitionsProvider;
import org.apache.tuscany.sca.provider.SCADefinitionsProviderException;
/**
* Provider for Policy Intents and PolicySet definitions for the JMS binding
*
* @version $Rev$ $Date$
*/
public class JMSBindingDefinitionsProvider implements SCADefinitionsProvider {
private String definitionsFile = "org/apache/tuscany/sca/binding/jms/policy/definitions.xml";
URLArtifactProcessor urlArtifactProcessor = null;
public JMSBindingDefinitionsProvider(ExtensionPointRegistry registry) {
URLArtifactProcessorExtensionPoint documentProcessors = registry.getExtensionPoint(URLArtifactProcessorExtensionPoint.class);
urlArtifactProcessor = (URLArtifactProcessor)documentProcessors.getProcessor(SCADefinitions.class);
}
public SCADefinitions getSCADefinition() throws SCADefinitionsProviderException {
final URL definitionsFileUrl = getClass().getClassLoader().getResource(definitionsFile);
SCADefinitions scaDefn = null;
try {
final URI uri = new URI(definitionsFile);
// Allow bindings to read properties. Requires PropertyPermission read in security policy.
scaDefn = AccessController.doPrivileged(new PrivilegedExceptionAction<SCADefinitions>() {
public SCADefinitions run() throws ContributionReadException {
return (SCADefinitions)urlArtifactProcessor.read(null, uri, definitionsFileUrl);
}
});
} catch (Exception e) {
throw new SCADefinitionsProviderException(e);
}
return scaDefn;
}
}
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