public int copy(InputStream input, RandomAccessFile out, TTask.Task task)
throws Exception, IOException {
this.mBuffer = new byte[8192];
BufferedInputStream in = new BufferedInputStream(input, 8192);
TLog.v(this.TAG, "length" + out.length());
out.seek(out.length());
int count = 0;
int byteCount = 0;
long errorBlockTimePreviousTime = -1L;
long expireTime = 0L;
try {
while (!task.isCancel()) {
byteCount = in.read(this.mBuffer, 0, 8192);
if (byteCount == -1) {
break;
}
out.write(this.mBuffer, 0, byteCount);
count += byteCount;
if (!TMDownloadManager.getInstance().isOnline()) {
task.stopTask();
setErrorCode(2);
break;
}
if (this.mSpeed == 0L) {
if (errorBlockTimePreviousTime > 0L) {
expireTime = System.currentTimeMillis() - errorBlockTimePreviousTime;
if (expireTime > 30000L) {
setErrorCode(2);
task.stopTask();
}
} else {
errorBlockTimePreviousTime = System.currentTimeMillis();
}
} else {
expireTime = 0L;
errorBlockTimePreviousTime = -1L;
}
}
} finally {
try {
out.close();
} catch (IOException e) {
setErrorCode(3);
TLog.e(this.TAG, e.getMessage());
}
try {
in.close();
} catch (IOException e) {
setErrorCode(3);
TLog.e(this.TAG, e.getMessage());
}
}
this.mBuffer = null;
return count;
}
private long downloadFile(TTask.Task task) throws Exception {
this.mAndroidHttpClient = AndroidHttpClient.newInstance(this.TAG);
HttpGet httpGet = new HttpGet(this.mUrl);
HttpResponse response = this.mAndroidHttpClient.execute(httpGet);
this.mTotalSize = response.getEntity().getContentLength();
File file = new File(this.mFilePath, this.mFileName);
if ((file.length() > 0L) && (this.mTotalSize > 0L) && (this.mTotalSize > file.length())) {
httpGet.addHeader("Range", "bytes=" + file.length() + "-");
this.mPreviousFileSize = file.length();
this.mAndroidHttpClient.close();
this.mAndroidHttpClient = AndroidHttpClient.newInstance("DownloadTask");
response = this.mAndroidHttpClient.execute(httpGet);
TLog.v(this.TAG, "File is not complete, .");
TLog.v(
this.TAG, "download now,File length:" + file.length() + " totalSize:" + this.mTotalSize);
} else if ((file.exists()) && (this.mTotalSize == file.length())) {
TLog.v(this.TAG, "Output file already exists. Skipping download.");
return 0L;
}
long storage = TStorageUtils.getAvailableStorage();
TLog.i(this.TAG, "storage:" + storage + " totalSize:" + this.mTotalSize);
if (this.mTotalSize - file.length() > storage) {
setErrorCode(1);
task.stopTask();
this.mAndroidHttpClient.close();
return 0L;
}
try {
this.mRandomAccessFile = new ProgressReportingRandomAccessFile(file, "rw");
} catch (FileNotFoundException e) {
TLog.v(this.TAG, "OutputStream Error");
}
InputStream input = null;
try {
input = response.getEntity().getContent();
} catch (IOException ex) {
setErrorCode(3);
this.mAndroidHttpClient.close();
TLog.v(this.TAG, "InputStream Error" + ex.getMessage());
return 0L;
}
int bytesCopied = copy(input, this.mRandomAccessFile, task);
if ((this.mPreviousFileSize + bytesCopied != this.mTotalSize)
&& (this.mTotalSize != -1L)
&& (!task.isCancel())) {
throw new IOException("Download incomplete: " + bytesCopied + " != " + this.mTotalSize);
}
this.mRandomAccessFile.close();
this.mAndroidHttpClient.close();
this.mAndroidHttpClient = null;
this.mRandomAccessFile = null;
TLog.v(this.TAG, "Download completed successfully.");
return bytesCopied;
}