package org.mortbay.ijetty.network;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import org.mortbay.ijetty.AppConstants;
import org.mortbay.ijetty.MainApplication;
import org.mortbay.ijetty.R;
import org.mortbay.ijetty.util.FileUtil;
import android.os.AsyncTask;
import android.os.Environment;
import android.os.SystemClock;
import android.util.Log;
import android.widget.Toast;
public class DownloadManager {
private static DownloadManager INSTANCE = new DownloadManager();
private Map<String, String> mDownload;
private DownloadManager() {
mDownload = new HashMap<String, String>();
}
public static DownloadManager getInstance() {
return INSTANCE;
}
private static int mThreadCount = 0;
public static int getDownloadThreadCount() {
return mThreadCount;
}
private void submitDownloadInfo(String pUrl, String pSavePath , boolean state) {
File vFile = new File(pSavePath);
if(!vFile.exists()) {
vFile = new File(pSavePath.replace(".tmp", ""));
}
InterfaceOp.protoSubmmitDownloadInfo(pUrl, vFile.length()+"" , state ? "1" : "0");
}
class DownloadTask extends AsyncTask<String, String, Boolean> {
String mKey;
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
mThreadCount++;
super.onPreExecute();
// Toast.makeText(MainApplication.getInstance(), "开始下载",
// Toast.LENGTH_SHORT).show();
}
@Override
protected Boolean doInBackground(String... params) {
// TODO Auto-generated method stub
mKey = params[0];
boolean vResult = download(params[0], params[1]);
submitDownloadInfo(params[0], params[1], vResult); //提交下载信息
return vResult;
}
@Override
protected void onPostExecute(Boolean result) {
// TODO Auto-generated method stub
mThreadCount--;
super.onPostExecute(result);
String vHint = "";
if (result) {
vHint = "下载完成";
} else {
vHint = "下载失败,或文件已存在！";
}
// Toast.makeText(MainApplication.getInstance(), vHint,
// Toast.LENGTH_SHORT).show();
mDownload.remove(mKey);
}
}
public void startDownload(String pUrl, String pSavePath) {
// Log.e("gary", "Downloading filename: "+pSavePath);
if (AppConstants.IS_MEDIA_MOUNTED || FileUtil.checkSDMounted()) {
if (mDownload.containsKey(pUrl)) {
// Toast.makeText(MainApplication.getInstance(), "正在下载中",
// Toast.LENGTH_SHORT).show();
} else {
mDownload.put(pUrl, pSavePath);
new DownloadTask().execute(pUrl, pSavePath);
}
return;
}
Toast.makeText(MainApplication.getInstance(), R.string.input_sd, Toast.LENGTH_LONG)
.show();
File vDelFile = new File(AppConstants.getMediaSdFolder());
File[] vFiles = vDelFile.listFiles();
if(vFiles != null && vFiles.length > 0) {
for(File vFile : vDelFile.listFiles()) {
vFile.delete();
}
}
vDelFile.delete();
}
private void recurseMkDirs(File file) {
if (file.getParentFile().exists()) {
file.mkdir();
} else {
recurseMkDirs(file.getParentFile());
file.mkdir();
}
}
public boolean download(String pUrl, String pSavePath) {
HttpURLConnection vConn = null;
byte[] vBuffer = new byte[2048];
InputStream vIs = null;
RandomAccessFile vRaf = null;
try {
long vCurrPos = 0;
long vTotalSize = 0;
vConn = getHttpURLConnection(pUrl, "GET");
File vSaveFile = new File(pSavePath);
// 循环创建父目录
File vParentDir = vSaveFile.getParentFile();
if (!vParentDir.exists()) {
recurseMkDirs(vParentDir);
}
if (vSaveFile.exists()) {
vCurrPos = vSaveFile.length();
vConn.setRequestProperty("Range", "bytes=" + vCurrPos + "-");
// if(vConn.getContentLength() == vCurrPos) return false;
Log.e("gary",
"vConn.getContentLength(): " + vConn.getContentLength());
if (vConn.getContentLength() == -1) {
// long filesize = getFileSize(pUrl);
// if (filesize == -1)
// return false;
// if (filesize == vCurrPos) {
NetworkUtil.sendDownloadCompleteBroadcase(pSavePath);
return true;
// } else{
// vSaveFile.delete();
// return false;
// }
}
}
if (vConn.getResponseCode() == HttpURLConnection.HTTP_OK
|| vConn.getResponseCode() == HttpURLConnection.HTTP_PARTIAL) {
vTotalSize = vConn.getContentLength() + vCurrPos;
int vCount;
int vCurrProgress = 0;
int vLastProgress = 0;
vIs = vConn.getInputStream();
vRaf = new RandomAccessFile(pSavePath, "rw");
vRaf.seek(vCurrPos);
long vLastTime = 0, vCurTime = 0;
while (-1 != (vCount = vIs.read(vBuffer, 0, vBuffer.length))) {
vRaf.write(vBuffer, 0, vCount);
vCurrPos += vCount;
if ((vCurTime = SystemClock.uptimeMillis()) - vLastTime > 1500) {
// if((vCurTime = System.currentTimeMillis())-vLastTime
// > 1500){
vCurrProgress = (int) (vCurrPos * 100 / vTotalSize);
if (vCurrProgress > vLastProgress) {
vLastTime = vCurTime;
vLastProgress = vCurrProgress;
// LogUtil.log("vCurrProgress:" + vCurrProgress);
}
}
}
NetworkUtil.sendDownloadCompleteBroadcase(pSavePath);
return true;
}
} catch (java.net.UnknownHostException e) {
e.printStackTrace();
return false;
} catch (SocketTimeoutException e) {
e.printStackTrace();
return false;
} catch (IOException e) {
e.printStackTrace();
return false;
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
if (vRaf != null) {
try {
vRaf.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (vIs != null)
try {
vIs.close();
} catch (IOException e) {
e.printStackTrace();
}
if (vConn != null) {
vConn.disconnect();
}
vBuffer = null;
System.gc();
}
return false;
}
private HttpURLConnection getHttpURLConnection(String pUrl, String pMethod)
throws IOException {
HttpURLConnection vConn = null;
URL vUrl = new URL(pUrl);
vConn = (HttpURLConnection) vUrl.openConnection();
// httpURLConnection.setRequestProperty("X-Online-Host", "*/*");
vConn.setInstanceFollowRedirects(true);
vConn.setConnectTimeout(150 * 1000);
vConn.setReadTimeout(5 * 1000); // 读取流超时时间
vConn.setRequestMethod(pMethod);
vConn.setRequestProperty("Accept",
"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
vConn.setRequestProperty("Connection", "Keep-Alive");
return vConn;
}
public static String getFileName(String url) {
return url.substring(url.lastIndexOf('/') + 1);
}
public long getFileSize(String urlStr) {
URL url = null;
long filesize = -1L;
HttpURLConnection conn = null;
try {
url = new URL(urlStr);
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(AppConstants.TIMEOUT_FETCH_CONNECTION);
conn.setRequestMethod("GET");
conn.setRequestProperty(
"Accept",
"image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*");
conn.setRequestProperty("Accept-Language", "zh-CN");
conn.setRequestProperty("Referer", urlStr);
conn.setRequestProperty("Charset", "UTF-8");
conn.setRequestProperty(
"User-Agent",
"Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.connect();
if (conn.getResponseCode() == 200) {
filesize = conn.getContentLength();
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (ProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (OutOfMemoryError e) {
e.printStackTrace();
System.gc();
} finally {
if (conn != null)
conn.disconnect();
}
return filesize;
}
}