Code improvements
* Replace unchecked casts with checked casts * remove Utility.finViewById * Fix return activity checking * Create UserAction enum * Fix typos * Add instrumented test for error info * ErrorInfo make fields final * Log exception using logger * Add inherited annotations * Resolve deprecation warnings * Remove unused methods from utility * Reformat code * Remove unused methods from Utility and improve getFileExt * Create OnScrollBelowItemsListener
This commit is contained in:
Coffeemakr
parent
40213b2d6a
commit
b03723c3fb
40 changed files with 2077 additions and 1981 deletions
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@ -18,311 +18,315 @@ import us.shandian.giga.util.Utility;
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import static org.schabi.newpipe.BuildConfig.DEBUG;
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public class DownloadMission
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{
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private static final String TAG = DownloadMission.class.getSimpleName();
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public class DownloadMission {
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private static final String TAG = DownloadMission.class.getSimpleName();
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public interface MissionListener {
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HashMap<MissionListener, Handler> handlerStore = new HashMap<>();
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void onProgressUpdate(DownloadMission downloadMission, long done, long total);
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void onFinish(DownloadMission downloadMission);
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void onError(DownloadMission downloadMission, int errCode);
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}
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public static final int ERROR_SERVER_UNSUPPORTED = 206;
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public static final int ERROR_UNKNOWN = 233;
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public interface MissionListener {
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HashMap<MissionListener, Handler> handlerStore = new HashMap<>();
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/**
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* The filename
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*/
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public String name;
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void onProgressUpdate(DownloadMission downloadMission, long done, long total);
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/**
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* The url of the file to download
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*/
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public String url;
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void onFinish(DownloadMission downloadMission);
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/**
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* The directory to store the download
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*/
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public String location;
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void onError(DownloadMission downloadMission, int errCode);
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}
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/**
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* Number of blocks the size of {@link DownloadManager#BLOCK_SIZE}
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*/
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public long blocks;
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public static final int ERROR_SERVER_UNSUPPORTED = 206;
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public static final int ERROR_UNKNOWN = 233;
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/**
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* Number of bytes
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*/
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public long length;
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/**
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* Number of bytes downloaded
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*/
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public long done;
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public int threadCount = 3;
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public int finishCount;
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private List<Long> threadPositions = new ArrayList<Long>();
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public final Map<Long, Boolean> blockState = new HashMap<Long, Boolean>();
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public boolean running;
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public boolean finished;
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public boolean fallback;
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public int errCode = -1;
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public long timestamp;
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public transient boolean recovered;
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private transient ArrayList<WeakReference<MissionListener>> mListeners = new ArrayList<WeakReference<MissionListener>>();
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private transient boolean mWritingToFile;
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private static final int NO_IDENTIFIER = -1;
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private long db_identifier = NO_IDENTIFIER;
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public DownloadMission() {
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}
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public DownloadMission(String name, String url, String location) {
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if(name == null) throw new NullPointerException("name is null");
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if(name.isEmpty()) throw new IllegalArgumentException("name is empty");
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if(url == null) throw new NullPointerException("url is null");
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if(url.isEmpty()) throw new IllegalArgumentException("url is empty");
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if(location == null) throw new NullPointerException("location is null");
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if(location.isEmpty()) throw new IllegalArgumentException("location is empty");
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this.url = url;
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this.name = name;
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this.location = location;
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}
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private void checkBlock(long block) {
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if(block < 0 || block >= blocks) {
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throw new IllegalArgumentException("illegal block identifier");
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}
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}
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/**
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* Check if a block is reserved
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* @param block the block identifier
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* @return true if the block is reserved and false if otherwise
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/**
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* The filename
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*/
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public boolean isBlockPreserved(long block) {
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checkBlock(block);
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return blockState.containsKey(block) ? blockState.get(block) : false;
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}
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public void preserveBlock(long block) {
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checkBlock(block);
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synchronized (blockState) {
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blockState.put(block, true);
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}
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}
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public String name;
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/**
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* Set the download position of the file
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* @param threadId the identifier of the thread
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* @param position the download position of the thread
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/**
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* The url of the file to download
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*/
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public void setPosition(int threadId, long position) {
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threadPositions.set(threadId, position);
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}
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public String url;
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/**
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* Get the position of a thread
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* @param threadId the identifier of the thread
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* @return the position for the thread
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/**
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* The directory to store the download
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*/
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public long getPosition(int threadId) {
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return threadPositions.get(threadId);
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}
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public synchronized void notifyProgress(long deltaLen) {
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if (!running) return;
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if (recovered) {
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recovered = false;
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}
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done += deltaLen;
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if (done > length) {
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done = length;
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}
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if (done != length) {
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writeThisToFile();
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}
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for (WeakReference<MissionListener> ref: mListeners) {
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final MissionListener listener = ref.get();
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if (listener != null) {
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MissionListener.handlerStore.get(listener).post(new Runnable() {
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@Override
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public void run() {
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listener.onProgressUpdate(DownloadMission.this, done, length);
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}
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});
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}
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}
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}
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public String location;
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/**
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* Called by a download thread when it finished.
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*/
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public synchronized void notifyFinished() {
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if (errCode > 0) return;
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finishCount++;
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if (finishCount == threadCount) {
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onFinish();
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}
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}
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/**
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* Called when all parts are downloaded
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*/
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private void onFinish() {
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if (errCode > 0) return;
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if (DEBUG) {
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Log.d(TAG, "onFinish");
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}
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running = false;
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finished = true;
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deleteThisFromFile();
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for (WeakReference<MissionListener> ref : mListeners) {
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final MissionListener listener = ref.get();
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if (listener != null) {
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MissionListener.handlerStore.get(listener).post(new Runnable() {
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@Override
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public void run() {
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listener.onFinish(DownloadMission.this);
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}
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});
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}
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}
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}
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public synchronized void notifyError(int err) {
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errCode = err;
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writeThisToFile();
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for (WeakReference<MissionListener> ref : mListeners) {
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final MissionListener listener = ref.get();
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MissionListener.handlerStore.get(listener).post(new Runnable() {
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@Override
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public void run() {
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listener.onError(DownloadMission.this, errCode);
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}
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});
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}
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}
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public synchronized void addListener(MissionListener listener) {
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Handler handler = new Handler(Looper.getMainLooper());
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MissionListener.handlerStore.put(listener, handler);
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mListeners.add(new WeakReference<MissionListener>(listener));
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}
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public synchronized void removeListener(MissionListener listener) {
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for (Iterator<WeakReference<MissionListener>> iterator = mListeners.iterator();
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iterator.hasNext(); ) {
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WeakReference<MissionListener> weakRef = iterator.next();
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if (listener!=null && listener == weakRef.get())
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{
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iterator.remove();
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}
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}
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}
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/**
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* Start downloading with multiple threads.
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*/
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public void start() {
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if (!running && !finished) {
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running = true;
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if (!fallback) {
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for (int i = 0; i < threadCount; i++) {
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if (threadPositions.size() <= i && !recovered) {
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threadPositions.add((long) i);
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}
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new Thread(new DownloadRunnable(this, i)).start();
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}
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} else {
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// In fallback mode, resuming is not supported.
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threadCount = 1;
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done = 0;
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blocks = 0;
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new Thread(new DownloadRunnableFallback(this)).start();
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}
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}
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}
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public void pause() {
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if (running) {
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running = false;
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recovered = true;
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// TODO: Notify & Write state to info file
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// if (err)
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}
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}
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/**
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* Removes the file and the meta file
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*/
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public void delete() {
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deleteThisFromFile();
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new File(location, name).delete();
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}
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/**
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* Write this {@link DownloadMission} to the meta file asynchronously
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* if no thread is already running.
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*/
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public void writeThisToFile() {
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if (!mWritingToFile) {
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mWritingToFile = true;
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new Thread() {
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@Override
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public void run() {
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doWriteThisToFile();
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mWritingToFile = false;
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}
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}.start();
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}
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}
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/**
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* Write this {@link DownloadMission} to the meta file.
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*/
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private void doWriteThisToFile() {
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synchronized (blockState) {
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Utility.writeToFile(getMetaFilename(), new Gson().toJson(this));
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}
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}
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private void deleteThisFromFile() {
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new File(getMetaFilename()).delete();
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}
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/**
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* Get the path of the meta file
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* @return the path to the meta file
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/**
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* Number of blocks the size of {@link DownloadManager#BLOCK_SIZE}
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*/
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private String getMetaFilename() {
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return location + "/" + name + ".giga";
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}
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public long blocks;
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public File getDownloadedFile() {
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return new File(location, name);
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}
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/**
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* Number of bytes
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*/
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public long length;
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/**
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* Number of bytes downloaded
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*/
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public long done;
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public int threadCount = 3;
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public int finishCount;
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private List<Long> threadPositions = new ArrayList<Long>();
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public final Map<Long, Boolean> blockState = new HashMap<Long, Boolean>();
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public boolean running;
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public boolean finished;
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public boolean fallback;
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public int errCode = -1;
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public long timestamp;
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public transient boolean recovered;
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private transient ArrayList<WeakReference<MissionListener>> mListeners = new ArrayList<WeakReference<MissionListener>>();
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private transient boolean mWritingToFile;
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private static final int NO_IDENTIFIER = -1;
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private long db_identifier = NO_IDENTIFIER;
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public DownloadMission() {
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}
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public DownloadMission(String name, String url, String location) {
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if (name == null) throw new NullPointerException("name is null");
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if (name.isEmpty()) throw new IllegalArgumentException("name is empty");
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if (url == null) throw new NullPointerException("url is null");
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if (url.isEmpty()) throw new IllegalArgumentException("url is empty");
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if (location == null) throw new NullPointerException("location is null");
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if (location.isEmpty()) throw new IllegalArgumentException("location is empty");
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this.url = url;
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this.name = name;
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this.location = location;
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}
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private void checkBlock(long block) {
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if (block < 0 || block >= blocks) {
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throw new IllegalArgumentException("illegal block identifier");
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}
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}
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/**
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* Check if a block is reserved
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*
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* @param block the block identifier
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* @return true if the block is reserved and false if otherwise
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*/
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public boolean isBlockPreserved(long block) {
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checkBlock(block);
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return blockState.containsKey(block) ? blockState.get(block) : false;
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}
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public void preserveBlock(long block) {
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checkBlock(block);
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synchronized (blockState) {
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blockState.put(block, true);
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}
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}
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/**
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* Set the download position of the file
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*
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* @param threadId the identifier of the thread
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* @param position the download position of the thread
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*/
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public void setPosition(int threadId, long position) {
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threadPositions.set(threadId, position);
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}
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/**
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* Get the position of a thread
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*
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* @param threadId the identifier of the thread
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* @return the position for the thread
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*/
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public long getPosition(int threadId) {
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return threadPositions.get(threadId);
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}
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public synchronized void notifyProgress(long deltaLen) {
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if (!running) return;
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if (recovered) {
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recovered = false;
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}
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done += deltaLen;
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if (done > length) {
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done = length;
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}
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if (done != length) {
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writeThisToFile();
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}
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for (WeakReference<MissionListener> ref : mListeners) {
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final MissionListener listener = ref.get();
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if (listener != null) {
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MissionListener.handlerStore.get(listener).post(new Runnable() {
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@Override
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public void run() {
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listener.onProgressUpdate(DownloadMission.this, done, length);
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}
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});
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}
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}
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}
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/**
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* Called by a download thread when it finished.
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*/
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public synchronized void notifyFinished() {
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if (errCode > 0) return;
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finishCount++;
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if (finishCount == threadCount) {
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onFinish();
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}
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}
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/**
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* Called when all parts are downloaded
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*/
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private void onFinish() {
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if (errCode > 0) return;
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if (DEBUG) {
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Log.d(TAG, "onFinish");
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}
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running = false;
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finished = true;
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deleteThisFromFile();
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for (WeakReference<MissionListener> ref : mListeners) {
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final MissionListener listener = ref.get();
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if (listener != null) {
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MissionListener.handlerStore.get(listener).post(new Runnable() {
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@Override
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public void run() {
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listener.onFinish(DownloadMission.this);
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}
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});
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}
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}
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}
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public synchronized void notifyError(int err) {
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errCode = err;
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writeThisToFile();
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for (WeakReference<MissionListener> ref : mListeners) {
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final MissionListener listener = ref.get();
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MissionListener.handlerStore.get(listener).post(new Runnable() {
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@Override
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public void run() {
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listener.onError(DownloadMission.this, errCode);
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}
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});
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}
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}
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public synchronized void addListener(MissionListener listener) {
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Handler handler = new Handler(Looper.getMainLooper());
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MissionListener.handlerStore.put(listener, handler);
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mListeners.add(new WeakReference<MissionListener>(listener));
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}
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public synchronized void removeListener(MissionListener listener) {
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for (Iterator<WeakReference<MissionListener>> iterator = mListeners.iterator();
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iterator.hasNext(); ) {
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WeakReference<MissionListener> weakRef = iterator.next();
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if (listener != null && listener == weakRef.get()) {
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iterator.remove();
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}
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}
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}
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/**
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* Start downloading with multiple threads.
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*/
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public void start() {
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if (!running && !finished) {
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running = true;
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if (!fallback) {
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for (int i = 0; i < threadCount; i++) {
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if (threadPositions.size() <= i && !recovered) {
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threadPositions.add((long) i);
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}
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new Thread(new DownloadRunnable(this, i)).start();
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}
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} else {
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// In fallback mode, resuming is not supported.
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threadCount = 1;
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done = 0;
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blocks = 0;
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new Thread(new DownloadRunnableFallback(this)).start();
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}
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}
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}
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public void pause() {
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if (running) {
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running = false;
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recovered = true;
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// TODO: Notify & Write state to info file
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// if (err)
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}
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}
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/**
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* Removes the file and the meta file
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*/
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public void delete() {
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deleteThisFromFile();
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new File(location, name).delete();
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}
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/**
|
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* Write this {@link DownloadMission} to the meta file asynchronously
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* if no thread is already running.
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*/
|
||||
public void writeThisToFile() {
|
||||
if (!mWritingToFile) {
|
||||
mWritingToFile = true;
|
||||
new Thread() {
|
||||
@Override
|
||||
public void run() {
|
||||
doWriteThisToFile();
|
||||
mWritingToFile = false;
|
||||
}
|
||||
}.start();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Write this {@link DownloadMission} to the meta file.
|
||||
*/
|
||||
private void doWriteThisToFile() {
|
||||
synchronized (blockState) {
|
||||
Utility.writeToFile(getMetaFilename(), new Gson().toJson(this));
|
||||
}
|
||||
}
|
||||
|
||||
private void deleteThisFromFile() {
|
||||
new File(getMetaFilename()).delete();
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the path of the meta file
|
||||
*
|
||||
* @return the path to the meta file
|
||||
*/
|
||||
private String getMetaFilename() {
|
||||
return location + "/" + name + ".giga";
|
||||
}
|
||||
|
||||
public File getDownloadedFile() {
|
||||
return new File(location, name);
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue