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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.resolver;
import java.util.HashMap;
import java.util.Map;
import org.apache.tuscany.sca.contribution.Contribution;
import org.apache.tuscany.sca.contribution.DefaultImport;
import org.apache.tuscany.sca.contribution.Import;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
/**
* A default implementation of a model resolver based on a map.
*
* @version $Rev$ $Date$
*/
public class DefaultModelResolver implements ModelResolver {
private Contribution contribution;
private Map<Object, Object> map = new HashMap<Object, Object>();
public DefaultModelResolver() {
}
public DefaultModelResolver(Contribution contribution, FactoryExtensionPoint modelFactories) {
this.contribution = contribution;
}
public <T> T resolveModel(Class<T> modelClass, T unresolved, ProcessorContext context) {
Object resolved = map.get(unresolved);
if (resolved != null) {
// Return the resolved object
return modelClass.cast(resolved);
} else {
// by default try and resolve through a default import
// if there is one.
if (contribution != null){
for (Import _import : contribution.getImports()){
if (_import instanceof DefaultImport){
resolved = _import.getModelResolver().resolveModel(modelClass, unresolved, context);
if (resolved != unresolved){
return modelClass.cast(resolved);
}
}
}
}
// Return the unresolved object
return unresolved;
}
}
public void addModel(Object resolved, ProcessorContext context) {
map.put(resolved, resolved);
}
public Object removeModel(Object resolved, ProcessorContext context) {
return map.remove(resolved);
}
// FIXME: TUSCANY-2499: temporarily give access to the models to get the jms binding
// use of definitions.xml working while the definitions.xml processing is being refactored
public Map<Object, Object> getModels() {
return map;
}
}
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