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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.assembly.xml;
import java.util.HashMap;
import java.util.Map;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.assembly.ConstrainingType;
import org.apache.tuscany.sca.contribution.Contribution;
import org.apache.tuscany.sca.contribution.Import;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.contribution.namespace.NamespaceImport;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
/**
* A Model Resolver for ConstrainingType models.
*
* @version $Rev$ $Date$
*/
public class ConstrainingTypeModelResolver implements ModelResolver {
private Contribution contribution;
private Map<QName, ConstrainingType> map = new HashMap<QName, ConstrainingType>();
public ConstrainingTypeModelResolver(Contribution contribution, ModelFactoryExtensionPoint modelFactories) {
this.contribution = contribution;
}
public void addModel(Object resolved) {
ConstrainingType composite = (ConstrainingType)resolved;
map.put(composite.getName(), composite);
}
public Object removeModel(Object resolved) {
return map.remove(((ConstrainingType)resolved).getName());
}
public <T> T resolveModel(Class<T> modelClass, T unresolved) {
// Lookup a definition for the given namespace
QName qname = ((ConstrainingType)unresolved).getName();
ConstrainingType resolved = (ConstrainingType) map.get(qname);
if (resolved != null) {
return modelClass.cast(resolved);
}
// No definition found, delegate the resolution to the imports
for (Import import_ : this.contribution.getImports()) {
if (import_ instanceof NamespaceImport) {
NamespaceImport namespaceImport = (NamespaceImport)import_;
if (namespaceImport.getNamespace().equals(qname.getNamespaceURI())) {
// Delegate the resolution to the import resolver
resolved = namespaceImport.getModelResolver().resolveModel(ConstrainingType.class, (ConstrainingType)unresolved);
if (!resolved.isUnresolved()) {
return modelClass.cast(resolved);
}
}
}
}
return (T)unresolved;
}
}
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