/*
 * Copyright 2005-2008 Les Hazlewood
 *
 * 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.jsecurity.util;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jsecurity.JSecurityException;

/**
 * @author Les Hazlewood
 * @since 0.2
 */
public abstract class LifecycleUtils {

    protected static transient final Log log = LogFactory.getLog(LifecycleUtils.class);

    public static void init(Object o) throws JSecurityException {
        if (o instanceof Initializable) {
            init((Initializable) o);
        }
    }

    public static void init(Initializable initializable) throws JSecurityException {
        initializable.init();
    }

    public static void destroy(Object o) {
        if (o instanceof Destroyable) {
            destroy((Destroyable) o);
        }
    }

    public static void destroy(Destroyable d) {
        if (d != null) {
            try {
                d.destroy();
            } catch (Throwable t) {
                if (log.isDebugEnabled()) {
                    String msg = "Unable to cleanly destroy instance [" + d + "] of type [" + d.getClass().getName() + "].";
                    log.debug(msg, t);
                }
            }
        }
    }
}