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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.contribution.resource.impl;
import java.util.HashMap;
import java.util.Map;
import org.apache.tuscany.sca.contribution.Artifact;
import org.apache.tuscany.sca.contribution.Contribution;
import org.apache.tuscany.sca.contribution.Import;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.contribution.resource.ResourceImport;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
/**
* A Model Resolver for contribution artifacts.
*
* @version $Rev$ $Date$
*/
public class ArtifactModelResolver implements ModelResolver {
private Contribution contribution;
private Map<String, Artifact> map = new HashMap<String, Artifact>();
public ArtifactModelResolver(Contribution contribution, FactoryExtensionPoint modelFactories) {
this.contribution = contribution;
}
public void addModel(Object resolved, ProcessorContext context) {
Artifact artifact = (Artifact)resolved;
map.put(artifact.getURI(), artifact);
}
public Object removeModel(Object resolved, ProcessorContext context) {
return map.remove(((Artifact)resolved).getURI());
}
public <T> T resolveModel(Class<T> modelClass, T unresolved, ProcessorContext context) {
// Get the artifact URI
String uri = ((Artifact)unresolved).getURI();
if (uri == null) {
return (T)unresolved;
}
// Lookup the artifact
Artifact resolved = (Artifact) map.get(uri);
if (resolved != null) {
return modelClass.cast(resolved);
}
// If not found, delegate the resolution to the imports (in this case based on the resource imports)
for (Import import_ : this.contribution.getImports()) {
if (import_ instanceof ResourceImport) {
ResourceImport resourceImport = (ResourceImport)import_;
//check the import location against the computed package name from the componentType URI
if ((resourceImport.getURI().equals(uri)) &&
(resourceImport.getModelResolver() != null)){
// Delegate the resolution to the import resolver
resolved = resourceImport.getModelResolver().resolveModel(Artifact.class, (Artifact)unresolved, context);
if (!resolved.isUnresolved()) {
return modelClass.cast(resolved);
}
}
}
}
return (T)unresolved;
}
}
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