Faruq Rasid
2015-12-31 10:14:30 +08:00
parent 1d6b5a35bd
commit f8ab7b8e13
450 changed files with 6859 additions and 101095 deletions

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package com.limelight.grid.assets;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.widget.ImageView;
import com.limelight.nvstream.http.ComputerDetails;
import com.limelight.nvstream.http.NvApp;
import java.io.IOException;
import java.io.InputStream;
import java.lang.ref.WeakReference;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class CachedAppAssetLoader {
private static final int MAX_CONCURRENT_DISK_LOADS = 3;
private static final int MAX_CONCURRENT_NETWORK_LOADS = 3;
private static final int MAX_CONCURRENT_CACHE_LOADS = 1;
private static final int MAX_PENDING_CACHE_LOADS = 100;
private static final int MAX_PENDING_NETWORK_LOADS = 40;
private static final int MAX_PENDING_DISK_LOADS = 40;
private final ThreadPoolExecutor cacheExecutor = new ThreadPoolExecutor(
MAX_CONCURRENT_CACHE_LOADS, MAX_CONCURRENT_CACHE_LOADS,
Long.MAX_VALUE, TimeUnit.DAYS,
new LinkedBlockingQueue<Runnable>(MAX_PENDING_CACHE_LOADS),
new ThreadPoolExecutor.DiscardOldestPolicy());
private final ThreadPoolExecutor foregroundExecutor = new ThreadPoolExecutor(
MAX_CONCURRENT_DISK_LOADS, MAX_CONCURRENT_DISK_LOADS,
Long.MAX_VALUE, TimeUnit.DAYS,
new LinkedBlockingQueue<Runnable>(MAX_PENDING_DISK_LOADS),
new ThreadPoolExecutor.DiscardOldestPolicy());
private final ThreadPoolExecutor networkExecutor = new ThreadPoolExecutor(
MAX_CONCURRENT_NETWORK_LOADS, MAX_CONCURRENT_NETWORK_LOADS,
Long.MAX_VALUE, TimeUnit.DAYS,
new LinkedBlockingQueue<Runnable>(MAX_PENDING_NETWORK_LOADS),
new ThreadPoolExecutor.DiscardOldestPolicy());
private final ComputerDetails computer;
private final double scalingDivider;
private final NetworkAssetLoader networkLoader;
private final MemoryAssetLoader memoryLoader;
private final DiskAssetLoader diskLoader;
private final Bitmap placeholderBitmap;
public CachedAppAssetLoader(ComputerDetails computer, double scalingDivider,
NetworkAssetLoader networkLoader, MemoryAssetLoader memoryLoader,
DiskAssetLoader diskLoader, Bitmap placeholderBitmap) {
this.computer = computer;
this.scalingDivider = scalingDivider;
this.networkLoader = networkLoader;
this.memoryLoader = memoryLoader;
this.diskLoader = diskLoader;
this.placeholderBitmap = placeholderBitmap;
}
public void cancelBackgroundLoads() {
Runnable r;
while ((r = cacheExecutor.getQueue().poll()) != null) {
cacheExecutor.remove(r);
}
}
public void cancelForegroundLoads() {
Runnable r;
while ((r = foregroundExecutor.getQueue().poll()) != null) {
foregroundExecutor.remove(r);
}
while ((r = networkExecutor.getQueue().poll()) != null) {
networkExecutor.remove(r);
}
}
public void freeCacheMemory() {
memoryLoader.clearCache();
}
private Bitmap doNetworkAssetLoad(LoaderTuple tuple, LoaderTask task) {
// Try 3 times
for (int i = 0; i < 3; i++) {
// Check again whether we've been cancelled or the image view is gone
if (task != null && (task.isCancelled() || task.imageViewRef.get() == null)) {
return null;
}
InputStream in = networkLoader.getBitmapStream(tuple);
if (in != null) {
// Write the stream straight to disk
diskLoader.populateCacheWithStream(tuple, in);
// Close the network input stream
try {
in.close();
} catch (IOException ignored) {}
// If there's a task associated with this load, we should return the bitmap
if (task != null) {
// If the cached bitmap is valid, return it. Otherwise, we'll try the load again
Bitmap bmp = diskLoader.loadBitmapFromCache(tuple, (int) scalingDivider);
if (bmp != null) {
return bmp;
}
}
else {
// Otherwise it's a background load and we return nothing
return null;
}
}
// Wait 1 second with a bit of fuzz
try {
Thread.sleep((int) (1000 + (Math.random() * 500)));
} catch (InterruptedException e) {
return null;
}
}
return null;
}
private class LoaderTask extends AsyncTask<LoaderTuple, Void, Bitmap> {
private final WeakReference<ImageView> imageViewRef;
private final boolean diskOnly;
private LoaderTuple tuple;
public LoaderTask(ImageView imageView, boolean diskOnly) {
this.imageViewRef = new WeakReference<ImageView>(imageView);
this.diskOnly = diskOnly;
}
@Override
protected Bitmap doInBackground(LoaderTuple... params) {
tuple = params[0];
// Check whether it has been cancelled or the image view is gone
if (isCancelled() || imageViewRef.get() == null) {
return null;
}
Bitmap bmp = diskLoader.loadBitmapFromCache(tuple, (int) scalingDivider);
if (bmp == null) {
if (!diskOnly) {
// Try to load the asset from the network
bmp = doNetworkAssetLoad(tuple, this);
} else {
// Report progress to display the placeholder and spin
// off the network-capable task
publishProgress();
}
}
// Cache the bitmap
if (bmp != null) {
memoryLoader.populateCache(tuple, bmp);
}
return bmp;
}
@Override
protected void onProgressUpdate(Void... nothing) {
// Do nothing if cancelled
if (isCancelled()) {
return;
}
// If the current loader task for this view isn't us, do nothing
final ImageView imageView = imageViewRef.get();
if (getLoaderTask(imageView) == this) {
// Set off another loader task on the network executor
LoaderTask task = new LoaderTask(imageView, false);
AsyncDrawable asyncDrawable = new AsyncDrawable(imageView.getResources(), placeholderBitmap, task);
imageView.setAlpha(1.0f);
imageView.setImageDrawable(asyncDrawable);
task.executeOnExecutor(networkExecutor, tuple);
}
}
@Override
protected void onPostExecute(Bitmap bitmap) {
// Do nothing if cancelled
if (isCancelled()) {
return;
}
final ImageView imageView = imageViewRef.get();
if (getLoaderTask(imageView) == this) {
// Set the bitmap
if (bitmap != null) {
imageView.setImageBitmap(bitmap);
}
// Show the view
imageView.setAlpha(1.0f);
}
}
}
static class AsyncDrawable extends BitmapDrawable {
private final WeakReference<LoaderTask> loaderTaskReference;
public AsyncDrawable(Resources res, Bitmap bitmap,
LoaderTask loaderTask) {
super(res, bitmap);
loaderTaskReference = new WeakReference<LoaderTask>(loaderTask);
}
public LoaderTask getLoaderTask() {
return loaderTaskReference.get();
}
}
private static LoaderTask getLoaderTask(ImageView imageView) {
if (imageView == null) {
return null;
}
final Drawable drawable = imageView.getDrawable();
// If our drawable is in play, get the loader task
if (drawable instanceof AsyncDrawable) {
final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
return asyncDrawable.getLoaderTask();
}
return null;
}
private static boolean cancelPendingLoad(LoaderTuple tuple, ImageView imageView) {
final LoaderTask loaderTask = getLoaderTask(imageView);
// Check if any task was pending for this image view
if (loaderTask != null && !loaderTask.isCancelled()) {
final LoaderTuple taskTuple = loaderTask.tuple;
// Cancel the task if it's not already loading the same data
if (taskTuple == null || !taskTuple.equals(tuple)) {
loaderTask.cancel(true);
} else {
// It's already loading what we want
return false;
}
}
// Allow the load to proceed
return true;
}
public void queueCacheLoad(NvApp app) {
final LoaderTuple tuple = new LoaderTuple(computer, app);
if (memoryLoader.loadBitmapFromCache(tuple) != null) {
// It's in memory which means it must also be on disk
return;
}
// Queue a fetch in the cache executor
cacheExecutor.execute(new Runnable() {
@Override
public void run() {
// Check if the image is cached on disk
if (diskLoader.checkCacheExists(tuple)) {
return;
}
// Try to load the asset from the network and cache result on disk
doNetworkAssetLoad(tuple, null);
}
});
}
public void populateImageView(NvApp app, ImageView view) {
LoaderTuple tuple = new LoaderTuple(computer, app);
// If there's already a task in progress for this view,
// cancel it. If the task is already loading the same image,
// we return and let that load finish.
if (!cancelPendingLoad(tuple, view)) {
return;
}
// First, try the memory cache in the current context
Bitmap bmp = memoryLoader.loadBitmapFromCache(tuple);
if (bmp != null) {
// Show the bitmap immediately
view.setAlpha(1.0f);
view.setImageBitmap(bmp);
return;
}
// If it's not in memory, create an async task to load it. This task will be attached
// via AsyncDrawable to this view.
final LoaderTask task = new LoaderTask(view, true);
final AsyncDrawable asyncDrawable = new AsyncDrawable(view.getResources(), placeholderBitmap, task);
view.setAlpha(0.0f);
view.setImageDrawable(asyncDrawable);
// Run the task on our foreground executor
task.executeOnExecutor(foregroundExecutor, tuple);
}
public class LoaderTuple {
public final ComputerDetails computer;
public final NvApp app;
public LoaderTuple(ComputerDetails computer, NvApp app) {
this.computer = computer;
this.app = app;
}
@Override
public boolean equals(Object o) {
if (!(o instanceof LoaderTuple)) {
return false;
}
LoaderTuple other = (LoaderTuple) o;
return computer.uuid.equals(other.computer.uuid) && app.getAppId() == other.app.getAppId();
}
@Override
public String toString() {
return "("+computer.uuid+", "+app.getAppId()+")";
}
}
}

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package com.limelight.grid.assets;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import com.limelight.LimeLog;
import com.limelight.utils.CacheHelper;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class DiskAssetLoader {
// 5 MB
private final long MAX_ASSET_SIZE = 5 * 1024 * 1024;
private final File cacheDir;
public DiskAssetLoader(File cacheDir) {
this.cacheDir = cacheDir;
}
public boolean checkCacheExists(CachedAppAssetLoader.LoaderTuple tuple) {
return CacheHelper.cacheFileExists(cacheDir, "boxart", tuple.computer.uuid.toString(), tuple.app.getAppId() + ".png");
}
public Bitmap loadBitmapFromCache(CachedAppAssetLoader.LoaderTuple tuple, int sampleSize) {
InputStream in = null;
Bitmap bmp = null;
try {
// Make sure the cached asset doesn't exceed the maximum size
if (CacheHelper.getFileSize(cacheDir, "boxart", tuple.computer.uuid.toString(), tuple.app.getAppId() + ".png") > MAX_ASSET_SIZE) {
LimeLog.warning("Removing cached tuple exceeding size threshold: "+tuple);
CacheHelper.deleteCacheFile(cacheDir, "boxart", tuple.computer.uuid.toString(), tuple.app.getAppId() + ".png");
return null;
}
in = CacheHelper.openCacheFileForInput(cacheDir, "boxart", tuple.computer.uuid.toString(), tuple.app.getAppId() + ".png");
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = sampleSize;
options.inPreferredConfig = Bitmap.Config.RGB_565;
bmp = BitmapFactory.decodeStream(in, null, options);
} catch (IOException ignored) {
} finally {
if (in != null) {
try {
in.close();
} catch (IOException ignored) {}
}
}
if (bmp != null) {
LimeLog.info("Disk cache hit for tuple: "+tuple);
}
return bmp;
}
public void populateCacheWithStream(CachedAppAssetLoader.LoaderTuple tuple, InputStream input) {
OutputStream out = null;
boolean success = false;
try {
out = CacheHelper.openCacheFileForOutput(cacheDir, "boxart", tuple.computer.uuid.toString(), tuple.app.getAppId() + ".png");
CacheHelper.writeInputStreamToOutputStream(input, out, MAX_ASSET_SIZE);
success = true;
} catch (IOException e) {
e.printStackTrace();
} finally {
if (out != null) {
try {
out.close();
} catch (IOException ignored) {}
}
if (!success) {
LimeLog.warning("Unable to populate cache with tuple: "+tuple);
CacheHelper.deleteCacheFile(cacheDir, "boxart", tuple.computer.uuid.toString(), tuple.app.getAppId() + ".png");
}
}
}
}

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package com.limelight.grid.assets;
import android.graphics.Bitmap;
import android.util.LruCache;
import com.limelight.LimeLog;
public class MemoryAssetLoader {
private static final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
private static final LruCache<String, Bitmap> memoryCache = new LruCache<String, Bitmap>(maxMemory / 16) {
@Override
protected int sizeOf(String key, Bitmap bitmap) {
// Sizeof returns kilobytes
return bitmap.getByteCount() / 1024;
}
};
private static String constructKey(CachedAppAssetLoader.LoaderTuple tuple) {
return tuple.computer.uuid.toString()+"-"+tuple.app.getAppId();
}
public Bitmap loadBitmapFromCache(CachedAppAssetLoader.LoaderTuple tuple) {
Bitmap bmp = memoryCache.get(constructKey(tuple));
if (bmp != null) {
LimeLog.info("Memory cache hit for tuple: "+tuple);
}
return bmp;
}
public void populateCache(CachedAppAssetLoader.LoaderTuple tuple, Bitmap bitmap) {
memoryCache.put(constructKey(tuple), bitmap);
}
public void clearCache() {
memoryCache.evictAll();
}
}

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package com.limelight.grid.assets;
import android.content.Context;
import com.limelight.LimeLog;
import com.limelight.binding.PlatformBinding;
import com.limelight.nvstream.http.ComputerDetails;
import com.limelight.nvstream.http.NvHTTP;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
public class NetworkAssetLoader {
private final Context context;
private final String uniqueId;
public NetworkAssetLoader(Context context, String uniqueId) {
this.context = context;
this.uniqueId = uniqueId;
}
public InputStream getBitmapStream(CachedAppAssetLoader.LoaderTuple tuple) {
NvHTTP http = new NvHTTP(getCurrentAddress(tuple.computer), uniqueId, null, PlatformBinding.getCryptoProvider(context));
InputStream in = null;
try {
in = http.getBoxArt(tuple.app);
} catch (IOException ignored) {}
if (in != null) {
LimeLog.info("Network asset load complete: " + tuple);
}
else {
LimeLog.info("Network asset load failed: " + tuple);
}
return in;
}
private static InetAddress getCurrentAddress(ComputerDetails computer) {
if (computer.reachability == ComputerDetails.Reachability.LOCAL) {
return computer.localIp;
}
else {
return computer.remoteIp;
}
}
}