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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.builder.impl;
import java.util.ArrayList;
import java.util.List;
import org.apache.tuscany.sca.assembly.Component;
import org.apache.tuscany.sca.assembly.Composite;
import org.apache.tuscany.sca.assembly.Implementation;
import org.apache.tuscany.sca.assembly.builder.BuilderContext;
import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
/**
* A composite builder that clones nested composites.
*
* @version $Rev$ $Date$
*/
public class CompositeCloneBuilderImpl implements CompositeBuilder {
public CompositeCloneBuilderImpl() {
}
public Composite build(Composite composite, BuilderContext context)
throws CompositeBuilderException {
if (Composite.DOMAIN_COMPOSITE.equals(composite.getName())) {
// Try to avoid clone for top-level composites that are added to the domain composite
for (Composite included : composite.getIncludes()) {
cloneIncludes(included);
cloneCompositeImplementations(included);
}
} else {
// Clone the includes
cloneIncludes(composite);
cloneCompositeImplementations(composite);
}
return composite;
}
private void cloneIncludes(Composite composite) {
List<Composite> includes = new ArrayList<Composite>();
for (Composite included : composite.getIncludes()) {
try {
includes.add((Composite)included.clone());
} catch (CloneNotSupportedException e) {
throw new UnsupportedOperationException(e);
}
}
composite.getIncludes().clear();
composite.getIncludes().addAll(includes);
}
public String getID() {
return "org.apache.tuscany.sca.assembly.builder.CompositeCloneBuilder";
}
/**
* Clone composite component implementations
*
* @param composite
* @param problems
*/
private void cloneCompositeImplementations(Composite composite) {
for (Component component : composite.getComponents()) {
Implementation implementation = component.getImplementation();
if (implementation instanceof Composite) {
Composite compositeImplementation = (Composite)implementation;
try {
// Please note the clone method is recursive
Composite clone = (Composite)compositeImplementation.clone();
component.setImplementation(clone);
} catch (CloneNotSupportedException e) {
throw new UnsupportedOperationException(e);
}
}
}
}
}
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