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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.implementation.java.injection;
import java.lang.reflect.Array;
import java.util.List;
import org.apache.tuscany.sca.core.factory.ObjectCreationException;
import org.apache.tuscany.sca.core.factory.ObjectFactory;
/**
* Resolves targets configured in a multiplicity by delegating to object factories and returning an <code>Array</code>
* containing object instances
*
* @version $Rev$ $Date$
*/
public class ArrayMultiplicityObjectFactory implements ObjectFactory<Object> {
private ObjectFactory[] factories;
private Class interfaceType;
public ArrayMultiplicityObjectFactory(Class interfaceType, List<ObjectFactory<?>> factories) {
assert interfaceType != null : "Interface type was null";
assert factories != null : "Object factories were null";
this.interfaceType = interfaceType;
this.factories = factories.toArray(new ObjectFactory[factories.size()]);
}
public Object getInstance() throws ObjectCreationException {
Object array = Array.newInstance(interfaceType, factories.length);
for (int i = 0; i < factories.length; i++) {
Array.set(array, i, factories[i].getInstance());
}
return array;
}
}
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