/*
* Copyright (c) 2015 [1076559197@qq.com | tchen0707@gmail.com]
*
* 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.youku.service.download;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.SocketException;
import java.net.SocketTimeoutException;
import java.net.URL;
import android.app.NotificationManager;
import android.content.Context;
import android.content.Intent;
import com.baseproject.utils.Logger;
import com.baseproject.utils.Util;
import com.decapi.DecAPI;
import com.youku.player.YoukuPlayerApplication;
import com.youku.player.util.PlayerUtil;
/**
* FileDownloadThread.下载线程处理
*
* @author 刘仲男 qq81595157@126.com
* @version v3.5
* @created time 2012-11-5 下午1:16:02
*/
public final class FileDownloadThread extends Thread {
private static final String TAG = "Download_Thread";
private static final int BUFFER_SIZE = 1024 * 4;// 缓冲大小
private DownloadInfo info;
private DownloadServiceManager download;
/** 重试次数 */
private int retryCount = 0;
private boolean cancel = false;
private boolean pause = false;
public FileDownloadThread(DownloadInfo di) {
super("FileDownloadThread");
info = di;
download = DownloadServiceManager.getInstance();
Logger.d("DownloadFlow","FileDownloadThread: download_info: " + di);
}
public void pause() {
pause = true;
}
public void goOn() {
pause = false;
}
public void cancel() {
cancel = true;
pause = false;
}
public boolean isStop() {
return cancel;
}
public String getTaskId() {
if (info != null) {
return info.taskId;
}
return null;
}
@Override
public void run() {
super.run();
Logger.d("DownloadFlow","FileDownloadThread: run()");
Logger.d(TAG, "FileDownloadThread start run");
info.setState(DownloadInfo.STATE_DOWNLOADING);
Logger.d(TAG, info.toString());
// 检查info文件完整性
if (info.segCount == 0 || info.segsSize == null
|| info.segsSize.length == 0 || info.segsSize[0] == 0) {
if (refreshData(info) == false) {// 重新取数据
return;
}
}
while (cancel == false && info.segId <= info.segCount
&& info.getState() != DownloadInfo.STATE_FINISH
&& info.getState() != DownloadInfo.STATE_CANCEL) {
if (downloadSegment(info) == false)
break;
if (info.segId == info.segCount) {
if (info.segsSize[info.segId - 1] <= info.segDownloadedSize) {
// 全部下载完成
cancel = true;
download.getDownloadingData().remove(info.taskId);
info.setState(DownloadInfo.STATE_FINISH);
info.segUrl = null;
break;
}
} else {
// 缓存下一个分片
info.segId += 1;
info.segDownloadedSize = 0;
}
info.segUrl = null;
}
cancel = true;
}
/**
* 下载分片
*
* @param info
* @return true下载完成；false下载失败或取消下载
*/
private boolean downloadSegment(DownloadInfo info) {
Logger.d("DownloadFlow","FileDownloadThread: downloadSegment()");
File f = checkAndGetFile(info);
if (f == null) {
cancel = true;
info.setState(DownloadInfo.STATE_EXCEPTION);
return false;
}
final long endPosition = info.segsSize[info.segId - 1];// 当前分片的结束位置
long curPosition = info.segDownloadedSize;// 当前分片的下载进度位置
if (curPosition >= endPosition) {
// 当前分片已下载完成
return true;
}
InputStream is = getInputStreamFromURL(info, download.canUseAcc());
if (is == null) {
cancel = true;
info.setState(DownloadInfo.STATE_EXCEPTION);
return false;
}
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
bis = new BufferedInputStream(is);
bos = new BufferedOutputStream(new FileOutputStream(f, true));
int len = 0;
byte[] buf = new byte[BUFFER_SIZE];
while (cancel == false && curPosition < endPosition
&& info.getState() == DownloadInfo.STATE_DOWNLOADING
&& (len = bis.read(buf, 0, BUFFER_SIZE)) != -1
&& cancel == false
&& info.getState() == DownloadInfo.STATE_DOWNLOADING) {// 因为read（）是耗时操作，所以需要二次判断
bos.write(buf, 0, len);
curPosition += len;
if (curPosition > endPosition) {
Logger.d(TAG, "curPosition > endPosition,curPosition："
+ curPosition + ",endPosition:" + endPosition);
info.segDownloadedSize += (len
- (curPosition - endPosition) + 1);
info.downloadedSize += (len - (curPosition - endPosition) + 1);
} else {
info.segDownloadedSize = curPosition;
info.downloadedSize += len;
}
info.setProgress(((double) info.downloadedSize * 100)
/ info.size);
if (info.retry != 0)
info.retry = 0;
while (pause) {
try {
sleep(500L);
} catch (InterruptedException e) {
}
}
}
if (curPosition >= endPosition)
return true;
} catch (SocketTimeoutException e) {
Logger.e("DownloadFlow","FileDownloadThread: downloadSegment(): " + e.toString());
Logger.e(TAG, e);
if (info.getState() != DownloadInfo.STATE_PAUSE
&& info.getState() != DownloadInfo.STATE_CANCEL) {
if (Util.hasInternet()) {
info.setExceptionId(DownloadInfo.EXCEPTION_TIMEOUT);
if (info.retry == 0){
PlayerUtil.showTips(info.getExceptionInfo());
}
} else {
info.setExceptionId(DownloadInfo.EXCEPTION_NO_NETWORK);
}
cancel = true;
info.setState(DownloadInfo.STATE_EXCEPTION);
}
} catch (SocketException e) {
Logger.e("DownloadFlow","FileDownloadThread: downloadSegment(): " + e.toString());
Logger.e(TAG, e);
if (info.getState() != DownloadInfo.STATE_PAUSE
&& info.getState() != DownloadInfo.STATE_CANCEL) {
if (Util.hasInternet()) {
info.setExceptionId(DownloadInfo.EXCEPTION_TIMEOUT);
if (info.retry == 0){
PlayerUtil.showTips(info.getExceptionInfo());
}
} else {
info.setExceptionId(DownloadInfo.EXCEPTION_NO_NETWORK);
}
cancel = true;
info.setState(DownloadInfo.STATE_EXCEPTION);
}
} catch (FileNotFoundException e) {// SD卡被拔出
Logger.e("DownloadFlow","FileDownloadThread: downloadSegment(): " + e.toString());
Logger.e(TAG, e);
NotificationManager nm = (NotificationManager) YoukuPlayerApplication.context
.getSystemService(Context.NOTIFICATION_SERVICE);
nm.cancel(IDownload.NOTIFY_ID);
} catch (IOException e) {
Logger.e("DownloadFlow","FileDownloadThread: downloadSegment(): " + e.toString());
Logger.e(TAG, e);
if (info.getState() != DownloadInfo.STATE_PAUSE
&& info.getState() != DownloadInfo.STATE_CANCEL) {
// if (info.createTime < DownloadManager222.deleteAllTimestamp)
// {
// 如果删除后立马又创建了该视频，则需要重新删掉
// download.deleteCache(info);
// } else {
String[] temp = info.savePath.split(YoukuPlayerApplication.getDownloadPath());
SDCardManager m = new SDCardManager(temp[0]);
if (!m.exist()) {
info.setExceptionId(DownloadInfo.EXCEPTION_NO_SDCARD);
PlayerUtil.showTips(info.getExceptionInfo());
} else if (m.getFreeSize() - info.size <= 0) {
info.setExceptionId(DownloadInfo.EXCEPTION_NO_SPACE);
PlayerUtil.showTips(info.getExceptionInfo());
}
cancel = true;
info.setState(DownloadInfo.STATE_EXCEPTION);
// }
}
} finally {
try {
if (bos != null)
bos.close();
if (bis != null)
bis.close();
if (is != null)
is.close();
} catch (IOException e) {
}
}
return false;
}
/**
* 检查文件&获得文件对象
*
* @param info
* @throws IOException
*/
private File checkAndGetFile(DownloadInfo info) {
File f = new File(info.savePath + info.segId + "."
+ DownloadInfo.FORMAT_POSTFIX[info.format]);
Logger.d("DownloadFlow","FileDownloadThread: checkAndGetFile(): " + f.getName());
if (f.exists() && f.isFile()) {
long len = f.length();
if (info.segDownloadedSize != len) {
info.segDownloadedSize = len;
long size = len;
for (int i = 0; i < (info.segId - 1); i++) {
size += info.segsSize[i];
}
info.downloadedSize = size;
} else if (info.segCount == 1 && info.downloadedSize != len) {
info.downloadedSize = len;
}
} else {
// 文件损坏，重新生成数据
if (f.isDirectory())
PlayerUtil.deleteFile(f);
try {
f.createNewFile();
} catch (IOException e) {
return null;
}
info.segDownloadedSize = 0;
long size = 0;
for (int i = 0; i < (info.segId - 1); i++) {
size += info.segsSize[i];
}
info.downloadedSize = size;
}
return f;
}
/**
* 根据URL得到输入流
*
* @param info
* @return
*/
private InputStream getInputStreamFromURL(DownloadInfo info, boolean openP2P) {
Logger.d(TAG, "segId:" + info.segId);
String url = getUrl(info, openP2P);
Logger.d("DownloadFlow","FileDownloadThread: getInputStreamFromURL(): download_url: " + url);
Logger.d(TAG, "locationUrl:" + url);
if (url != null && url.length() != 0) {
HttpURLConnection con;
try {
con = (HttpURLConnection) new URL(url).openConnection();
con.setConnectTimeout(YoukuPlayerApplication.TIMEOUT);
con.setReadTimeout(YoukuPlayerApplication.TIMEOUT);
con.setAllowUserInteraction(true);
con.setRequestProperty("Range", "bytes="
+ info.segDownloadedSize + "-");
con.connect();
int rcode = con.getResponseCode();
Logger.d(TAG, "responseCode:" + rcode);
// 如果所存的url地址不可用404，则重新获取url地址并重新从0%下载;403为CMCC网络不可用
if (rcode != HttpURLConnection.HTTP_NOT_FOUND
&& rcode != HttpURLConnection.HTTP_FORBIDDEN) {
InputStream is = con.getInputStream();
retryCount = 0;
return is;
}
} catch (IOException e) {
Logger.e("DownloadFlow","FileDownloadThread: getInputStreamFromURL(): error: " + e.toString());
Logger.e(TAG, "getInputStreamFromURL()", e);
if (retryCount < 1) {// 重试一次
retryCount++;
if (openP2P && download.isAccAvailable()) {
Logger.d(TAG, "P2P加速地址不可用，切换使用CDN地址重试一次");
} else {
Logger.d(TAG, "getInputStreamFromURL（）CDN地址重试一次");
}
return getInputStreamFromURL(info, false);
}
}
}
retryCount = 0;
return null;
}
/**
* 获得下载地址
*
* @param info
* @return
*/
private String getUrl(DownloadInfo info, boolean openP2P) {
Logger.d("DownloadFlow" ,"FileDownloadThread: getUrl()");
if (info.segsfileId == null
|| info.segsUrl == null
|| info.segCount != info.segsUrl.length
|| (System.currentTimeMillis() - info.getUrlTime) > 2.5 * 60 * 60 * 1000) {
if (refreshData(info) == false) {
return null;
}
}
String segUrl = info.segsUrl[info.segId - 1];
String segfileId = info.segsfileId[info.segId - 1];
Logger.d("DownloadFlow" ,"FileDownloadThread: #0");
segUrl = DecAPI.getEncreptUrl(segUrl, segfileId, info.token, info.oip,info.sid, 0);
Logger.d("DownloadFlow" ,"FileDownloadThread: #1 : " + segUrl);
String url = null;
if (openP2P && download.isAccAvailable()) {
segUrl += download.getAccPort();
Logger.d(TAG, "downloadUrl:" + segUrl);
url = DownloadUtils.getLocation(segUrl);
if (url == null || url.length() == 0) {
if (refreshData(info) == false) {
return null;
}
segUrl = info.segsUrl[info.segId - 1];
segfileId = info.segsfileId[info.segId - 1];
segUrl = DecAPI.getEncreptUrl(segUrl, segfileId, info.token,
info.oip, info.sid, 0);
segUrl += download.getAccPort();
Logger.d(TAG, "downloadUrl:" + segUrl);
url = DownloadUtils.getLocation(segUrl);
if (url != null && url.length() != 0) {
url += "?ua=mp&st=down";
}
} else {
url += "?ua=mp&st=down";
}
} else {
url = DownloadUtils.getLocation(segUrl);
if (url == null || url.length() == 0) {
if (refreshData(info) == false) {
return null;
}
segUrl = info.segsUrl[info.segId - 1];
segfileId = info.segsfileId[info.segId - 1];
segUrl = DecAPI.getEncreptUrl(segUrl, segfileId, info.token,
info.oip, info.sid, 0);
Logger.d(TAG, "downloadUrl:" + segUrl);
url = DownloadUtils.getLocation(segUrl);
}
}
info.segUrl = url;
accSatae(openP2P && download.isAccAvailable());
return url;
}
/**
* p2p埋点
* @param isUseP2P 是否使用p2p
*/
private void accSatae(boolean isUseP2P) {
int accState = download.getAccState();
int state = 0;
if (accState == 1) {// 可用
state = 0;
} else if (accState == 0) {// 暂停
state = 3;
} else {// 不可用
state = 1;
}
int source;
if (!isUseP2P) {
source = 1;
} else {
source = 2;
}
Intent i = new Intent("android.intent.action.DOWNLOAD_TRACKER");
i.putExtra("vid", info.videoid);
i.putExtra("state", state);
i.putExtra("source", source);
YoukuPlayerApplication.context.sendBroadcast(i);
}
/**
* 重新取接口数据
*
* @return 是否取成功
*/
private boolean refreshData(DownloadInfo info) {
if (!DownloadUtils.getDownloadData(info)) {
info.setState(DownloadInfo.STATE_WAITING);
PlayerUtil.showTips(info.getExceptionInfo());
return false;
}
return true;
}
}