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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.wink.common.internal.lifecycle;

import org.apache.wink.common.annotations.Scope;
import org.apache.wink.common.annotations.Scope.ScopeType;

/**
 * Implements a LifecycleManager that creates objects based on the Scope
 * annotation.
 * 
 * @param 
 * @see Scope
 */
public class ScopeLifecycleManager implements LifecycleManager {

    public ObjectFactory createObjectFactory(T object) {

        if (object == null) {
            return null;
        }

        @SuppressWarnings("unchecked")
        final Class cls = (Class)object.getClass();
        Scope scope = cls.getAnnotation(Scope.class);

        if (scope != null) {
            if (scope.value() == ScopeType.SINGLETON) {
                return LifecycleManagerUtils.createSingletonObjectFactory(object);
            } else if (scope.value() == ScopeType.PROTOTYPE) {
                // It's a prototype
                return LifecycleManagerUtils.createPrototypeObjectFactory(cls);
            }
        }
        // has no Scope annotation, do nothing
        return null;
    }

    public ObjectFactory createObjectFactory(Class cls) {

        if (cls == null) {
            return null;
        }

        Scope scope = cls.getAnnotation(Scope.class);
        if (scope != null) {
            if (scope.value() == ScopeType.SINGLETON) {
                return LifecycleManagerUtils.createSingletonObjectFactory(cls);
            } else if (scope.value() == ScopeType.PROTOTYPE) {
                return LifecycleManagerUtils.createPrototypeObjectFactory(cls);
            }
        }
        // has no Scope annotation, do nothing
        return null;
    }

}