/*******************************************************************************
* Copyright 2011-2014 Sergey Tarasevich
*
* 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 com.nostra13.universalimageloader.utils;
import com.nostra13.universalimageloader.cache.disc.DiskCache;
import java.io.File;
/**
* Utility for convenient work with disk cache.<br />
* <b>NOTE:</b> This utility works with file system so avoid using it on application main thread.
*
* @author Sergey Tarasevich (nostra13[at]gmail[dot]com)
* @since 1.8.0
*/
public final class DiskCacheUtils {
private DiskCacheUtils() {
}
/** Returns {@link File} of cached image or <b>null</b> if image was not cached in disk cache */
public static File findInCache(String imageUri, DiskCache diskCache) {
File image = diskCache.get(imageUri);
return image != null && image.exists() ? image : null;
}
/**
* Removed cached image file from disk cache (if image was cached in disk cache before)
*
* @return <b>true</b> - if cached image file existed and was deleted; <b>false</b> - otherwise.
*/
public static boolean removeFromCache(String imageUri, DiskCache diskCache) {
File image = diskCache.get(imageUri);
return image != null && image.exists() && image.delete();
}
}
