/*
 * Copyright 2005-2010 the original author or authors.
 * 
 * Licensed 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.wamblee.system.adapters;

import org.wamblee.system.core.AbstractComponent;
import org.wamblee.system.core.DefaultProvidedInterface;
import org.wamblee.system.core.ProvidedInterface;
import org.wamblee.system.core.RequiredInterface;
import org.wamblee.system.core.Scope;

/**
 * An adapter class that adapts an existing object to a component.
 * 
 * @author Erik Brakkee
 */
public class ObjectAdapter extends AbstractComponent<Object> {
    private ObjectConfiguration objectConfig;

    private Object object;

    /**
     * Creates a new ObjectAdapter object.
     * 
     */
    public ObjectAdapter(String aName, Object aObject,
        ObjectConfiguration aObjectConfig) {
        super(aName, new ProvidedInterface[] { new DefaultProvidedInterface(
            aName, aObject.getClass()) }, aObjectConfig.getRequiredInterfaces()
            .toArray(new RequiredInterface[0]));
        objectConfig = aObjectConfig;
        object = aObject;
    }

    @Override
    protected Object doStart(Scope aScope) {
        objectConfig.inject(aScope, object);

        for (ProvidedInterface provided : getProvidedInterfaces()) {
            addInterface(provided, object, aScope);
        }

        return object;
    }

    @Override
    protected void doStop(Object aRuntime) {
        // Empty.
    }
}