com.liferay.portal.webcache.WebCachePoolImpl Maven / Gradle / Ivy

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.webcache;

import com.liferay.portal.kernel.cache.PortalCache;
import com.liferay.portal.kernel.cache.PortalCacheHelperUtil;
import com.liferay.portal.kernel.cache.PortalCacheManagerNames;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.Time;
import com.liferay.portal.kernel.webcache.WebCacheException;
import com.liferay.portal.kernel.webcache.WebCacheItem;
import com.liferay.portal.kernel.webcache.WebCachePool;

/**
 * @author Brian Wing Shun Chan
 */
public class WebCachePoolImpl implements WebCachePool {

	public void afterPropertiesSet() {
		_portalCache = PortalCacheHelperUtil.getPortalCache(
			PortalCacheManagerNames.SINGLE_VM, _CACHE_NAME);
	}

	@Override
	public void clear() {
		_portalCache.removeAll();
	}

	@Override
	public Object get(String key, WebCacheItem webCacheItem) {
		Object object = _portalCache.get(key);

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

		try {
			object = webCacheItem.convert(key);

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

			int timeToLive = (int)(webCacheItem.getRefreshTime() / Time.SECOND);

			if (timeToLive > 0) {
				_portalCache.put(key, object, timeToLive);
			}
		}
		catch (WebCacheException webCacheException) {
			if (_log.isWarnEnabled()) {
				Throwable throwable = webCacheException.getCause();

				if (throwable != null) {
					_log.warn(throwable, throwable);
				}
				else {
					_log.warn(webCacheException);
				}
			}
		}

		return object;
	}

	@Override
	public void remove(String key) {
		_portalCache.remove(key);
	}

	private static final String _CACHE_NAME = WebCachePool.class.getName();

	private static final Log _log = LogFactoryUtil.getLog(
		WebCachePoolImpl.class);

	private PortalCache _portalCache;

}