/**
* Copyright (c) 2000-2005 Liferay, LLC. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.liferay.portal.ejb;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import com.dotcms.repackage.org.apache.commons.collections.map.LRUMap;
import com.dotcms.repackage.EDU.oswego.cs.dl.util.concurrent.SyncMap;
import com.dotcms.repackage.EDU.oswego.cs.dl.util.concurrent.WriterPreferenceReadWriteLock;
import com.dotmarketing.util.Logger;
import com.liferay.portal.model.Image;
import com.liferay.portal.util.ImageKey;
import com.liferay.portal.util.PropsUtil;
/**
* <a href="ImageLocalUtil.java.html"><b><i>View Source</i></b></a>
*
* @author Brian Wing Shun Chan
* @author Michael Weisser
* @version $Revision: 1.13 $
*
*/
public class ImageLocalUtil {
public static Image get(String id) {
ImageLocalUtil imageLocalUtil = _getInstance();
Image image = imageLocalUtil._get(id);
if (image == null) {
try {
image = ImageManagerUtil.getImage(id);
}
catch (Exception e) {
Logger.error(ImageLocalUtil.class,e.getMessage(),e);
}
imageLocalUtil._put(id, image);
}
return image;
}
public static byte[] getDefaultBytes() {
return _getInstance()._getDefaultBytes();
}
public static void put(String id, byte[] bytes) {
ImageLocalUtil imageLocalUtil = _getInstance();
ImageKey.generateNewKey(id);
Image image = null;
try {
image = ImageManagerUtil.updateImage(id, bytes);
}
catch (Exception e) {
Logger.error(ImageLocalUtil.class,e.getMessage(),e);
}
imageLocalUtil._put(id, image);
}
public static Image remove(String id) {
ImageLocalUtil imageLocalUtil = _getInstance();
try {
ImageManagerUtil.deleteImage(id);
}
catch (Exception e) {
}
return imageLocalUtil._remove(id);
}
private static ImageLocalUtil _getInstance() {
if (_instance == null) {
synchronized (ImageLocalUtil.class) {
if (_instance == null) {
_instance = new ImageLocalUtil();
}
}
}
return _instance;
}
private ImageLocalUtil() {
_imagePool = new SyncMap(
new LRUMap(Image.MAX_SIZE), new WriterPreferenceReadWriteLock());
}
private Image _get(String id) {
return (Image)_imagePool.get(id);
}
private byte[] _getDefaultBytes() {
byte[] defaultBytes = (byte[])_imagePool.get(PropsUtil.IMAGE_DEFAULT);
if (defaultBytes == null) {
try {
InputStream is =
getClass().getClassLoader().getResourceAsStream(
PropsUtil.get(PropsUtil.IMAGE_DEFAULT));
if (is != null) {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
byte[] bytes = new byte[512];
for (int i = is.read(bytes, 0, 512); i != -1;
i = is.read(bytes, 0, 512)) {
buffer.write(bytes, 0, i);
}
defaultBytes = buffer.toByteArray();
is.close();
buffer.close();
_imagePool.put(PropsUtil.IMAGE_DEFAULT, defaultBytes);
}
}
catch (IOException ioe) {
Logger.error(ImageLocalUtil.class,ioe.getMessage(),ioe);
}
}
return defaultBytes;
}
private void _put(String id, Image image) {
_imagePool.put(id, image);
}
private Image _remove(String id) {
return (Image)_imagePool.remove(id);
}
private static ImageLocalUtil _instance;
private Map _imagePool;
}