com.nostra13.universalimageloader.core.DefaultConfigurationFactory Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2011-2013 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.core;
import android.content.Context;
import android.graphics.Bitmap;
import android.os.Build;
import com.nostra13.universalimageloader.cache.disc.DiscCacheAware;
import com.nostra13.universalimageloader.cache.disc.impl.FileCountLimitedDiscCache;
import com.nostra13.universalimageloader.cache.disc.impl.TotalSizeLimitedDiscCache;
import com.nostra13.universalimageloader.cache.disc.impl.UnlimitedDiscCache;
import com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator;
import com.nostra13.universalimageloader.cache.disc.naming.HashCodeFileNameGenerator;
import com.nostra13.universalimageloader.cache.memory.MemoryCacheAware;
import com.nostra13.universalimageloader.cache.memory.impl.LRULimitedMemoryCache;
import com.nostra13.universalimageloader.cache.memory.impl.LruMemoryCache;
import com.nostra13.universalimageloader.core.assist.QueueProcessingType;
import com.nostra13.universalimageloader.core.assist.deque.LIFOLinkedBlockingDeque;
import com.nostra13.universalimageloader.core.decode.BaseImageDecoder;
import com.nostra13.universalimageloader.core.decode.ImageDecoder;
import com.nostra13.universalimageloader.core.display.BitmapDisplayer;
import com.nostra13.universalimageloader.core.display.SimpleBitmapDisplayer;
import com.nostra13.universalimageloader.core.download.BaseImageDownloader;
import com.nostra13.universalimageloader.core.download.ImageDownloader;
import com.nostra13.universalimageloader.utils.StorageUtils;
import java.io.File;
import java.util.concurrent.*;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Factory for providing of default options for {@linkplain ImageLoaderConfiguration configuration}
*
* @author Sergey Tarasevich (nostra13[at]gmail[dot]com)
* @since 1.5.6
*/
public class DefaultConfigurationFactory {
/** Creates default implementation of task executor */
public static Executor createExecutor(int threadPoolSize, int threadPriority, QueueProcessingType tasksProcessingType) {
boolean lifo = tasksProcessingType == QueueProcessingType.LIFO;
BlockingQueue taskQueue = lifo ? new LIFOLinkedBlockingDeque() : new LinkedBlockingQueue();
return new ThreadPoolExecutor(threadPoolSize, threadPoolSize, 0L, TimeUnit.MILLISECONDS, taskQueue, createThreadFactory(threadPriority));
}
/** Creates {@linkplain HashCodeFileNameGenerator default implementation} of FileNameGenerator */
public static FileNameGenerator createFileNameGenerator() {
return new HashCodeFileNameGenerator();
}
/** Creates default implementation of {@link DiscCacheAware} depends on incoming parameters */
public static DiscCacheAware createDiscCache(Context context, FileNameGenerator discCacheFileNameGenerator, int discCacheSize, int discCacheFileCount) {
if (discCacheSize > 0) {
File individualCacheDir = StorageUtils.getIndividualCacheDirectory(context);
return new TotalSizeLimitedDiscCache(individualCacheDir, discCacheFileNameGenerator, discCacheSize);
} else if (discCacheFileCount > 0) {
File individualCacheDir = StorageUtils.getIndividualCacheDirectory(context);
return new FileCountLimitedDiscCache(individualCacheDir, discCacheFileNameGenerator, discCacheFileCount);
} else {
File cacheDir = StorageUtils.getCacheDirectory(context);
return new UnlimitedDiscCache(cacheDir, discCacheFileNameGenerator);
}
}
/** Creates reserve disc cache which will be used if primary disc cache becomes unavailable */
public static DiscCacheAware createReserveDiscCache(File cacheDir) {
File individualDir = new File(cacheDir, "uil-images");
if (individualDir.exists() || individualDir.mkdir()) {
cacheDir = individualDir;
}
return new TotalSizeLimitedDiscCache(cacheDir, 2 * 1024 * 1024); // limit - 2 Mb
}
/**
* Creates default implementation of {@link MemoryCacheAware} depends on incoming parameters:
* {@link LruMemoryCache} (for API >= 9) or {@link LRULimitedMemoryCache} (for API < 9).
* Default cache size = 1/8 of available app memory.
*/
public static MemoryCacheAware createMemoryCache(int memoryCacheSize) {
if (memoryCacheSize == 0) {
memoryCacheSize = (int) (Runtime.getRuntime().maxMemory() / 8);
}
MemoryCacheAware memoryCache;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
memoryCache = new LruMemoryCache(memoryCacheSize);
} else {
memoryCache = new LRULimitedMemoryCache(memoryCacheSize);
}
return memoryCache;
}
/** Creates default implementation of {@link ImageDownloader} - {@link BaseImageDownloader} */
public static ImageDownloader createImageDownloader(Context context) {
return new BaseImageDownloader(context);
}
/** Creates default implementation of {@link ImageDecoder} - {@link BaseImageDecoder} */
public static ImageDecoder createImageDecoder(boolean loggingEnabled) {
return new BaseImageDecoder(loggingEnabled);
}
/** Creates default implementation of {@link BitmapDisplayer} - {@link SimpleBitmapDisplayer} */
public static BitmapDisplayer createBitmapDisplayer() {
return new SimpleBitmapDisplayer();
}
/** Creates default implementation of {@linkplain ThreadFactory thread factory} for task executor */
private static ThreadFactory createThreadFactory(int threadPriority) {
return new DefaultThreadFactory(threadPriority);
}
private static class DefaultThreadFactory implements ThreadFactory {
private static final AtomicInteger poolNumber = new AtomicInteger(1);
private final ThreadGroup group;
private final AtomicInteger threadNumber = new AtomicInteger(1);
private final String namePrefix;
private final int threadPriority;
DefaultThreadFactory(int threadPriority) {
this.threadPriority = threadPriority;
SecurityManager s = System.getSecurityManager();
group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup();
namePrefix = "uil-pool-" + poolNumber.getAndIncrement() + "-thread-";
}
@Override
public Thread newThread(Runnable r) {
Thread t = new Thread(group, r, namePrefix + threadNumber.getAndIncrement(), 0);
if (t.isDaemon()) t.setDaemon(false);
t.setPriority(threadPriority);
return t;
}
}
}