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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.List;
import org.apache.tuscany.sca.assembly.Base;
import org.apache.tuscany.sca.contribution.Contribution;
import org.apache.tuscany.sca.contribution.Export;
import org.apache.tuscany.sca.contribution.Import;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
/**
* A model resolver implementation that considers Exports in a list of contributions.
*
* @version $Rev$ $Date$
*/
public class DefaultImportAllModelResolver implements ModelResolver {
private Import import_;
private List<Contribution> contributions;
public DefaultImportAllModelResolver(Import import_, List<Contribution> contributions) {
this.import_ = import_;
this.contributions = contributions;
}
public void addModel(Object resolved, ProcessorContext context) {
throw new IllegalStateException();
}
public Object removeModel(Object resolved, ProcessorContext context) {
throw new IllegalStateException();
}
public <T> T resolveModel(Class<T> modelClass, T unresolved, ProcessorContext context) {
//TODO optimize and cache results of the resolution later
// Go over all available contributions
for (Contribution contribution : contributions) {
// Go over all exports in the contribution
for (Export export : contribution.getExports()) {
// If the export matches the export, try to resolve the model object
if (import_.match(export)) {
Object resolved = export.getModelResolver().resolveModel(modelClass, unresolved, context);
// Return the resolved model object
if (resolved instanceof Base) {
if (!((Base)resolved).isUnresolved()) {
return modelClass.cast(resolved);
}
}
}
}
}
// Model object was not resolved
return unresolved;
}
}
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