kr.debop4j.core.pool.AbstractPool.java Source code

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/*
 * Copyright 2011-2013 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 kr.debop4j.core.pool;

import lombok.extern.slf4j.Slf4j;
import org.apache.commons.pool.PoolableObjectFactory;
import org.apache.commons.pool.impl.GenericObjectPool;

/**
 * Apache common pool? Generic Pool (Jedis ? JedisPool   ?)
 *
 * @author ? ( sunghyouk.bae@gmail.com )
 * @since 13. 4. 8.  12:41
 */
@Slf4j
@SuppressWarnings("unchecked")
public abstract class AbstractPool<T> implements AutoCloseable {

    protected GenericObjectPool pool;

    protected AbstractPool() {
    }

    public AbstractPool(final GenericObjectPool.Config poolConfig, PoolableObjectFactory<T> factory) {
        log.info(" pool ? ?... config=[{}]", poolConfig);

        pool = new GenericObjectPool<T>(factory, poolConfig);
    }

    /** ?  . */
    public T getResource() {

        log.trace("Pool? resource  ...");

        try {
            T result = (T) pool.borrowObject();

            log.trace("Pool? resource  . resource=[{}]", result);

            return result;

        } catch (Exception e) {
            log.error("Pool?  ??? .", e);
            throw new RuntimeException(e);
        }
    }

    /** ?  ?  . */
    public void returnResource(final T resource) {
        returnResourceObject(resource);
    }

    @SuppressWarnings("unchecked")
    protected void returnResourceObject(final Object resource) {

        log.trace("Pool? resource  ... resource=[{}]", resource);
        try {
            pool.returnObject(resource);
        } catch (Exception e) {
            log.error(" Pool ? . resource=" + resource, e);
            throw new RuntimeException(e);
        }
    }

    /**     ???? . */
    public void returnBrokenResource(final T resource) {
        returnBrokenResourceObject(resource);
    }

    @SuppressWarnings("unchecked")
    protected void returnBrokenResourceObject(final Object resource) {
        try {
            pool.invalidateObject(resource);
        } catch (Exception e) {
            log.error("???     ? .", e);
            throw new RuntimeException(e);
        }
    }

    /** ? . ?    . */
    public void destroy() {
        log.trace("Pool? ...");
        try {
            pool.close();
            pool = null;
        } catch (Exception e) {
            log.error("pool? ? .", e);
            throw new RuntimeException(e);
        }
        log.info("Pool? .");
    }

    public void close() throws Exception {
        destroy();
    }
}