@Override
public void onDestroy() {
mSuccessHandler.removeAllObserver();
mFailedHandler.removeAllObserver();
synchronized (mRequestList) {
mRequestList.clear();
}
synchronized (mListenerList) {
mListenerList.clear();
}
}
public boolean postRequest(DownloadRequest request, DownloadListener l) {
if (mRequestList == null
|| request == null
|| TextUtils.isEmpty(request.mDownloadUrl)
|| l == null) {
return false;
}
DownloadListenerObj downloadObj = new DownloadListenerObj(request.mDownloadUrl, l);
boolean contain = false;
synchronized (mListenerList) {
for (DownloadListenerObj obj : mListenerList) {
if (downloadObj.equals(obj)) {
contain = true;
}
}
if (!contain) {
mListenerList.add(downloadObj);
}
}
// 检查是否已经下载过此request对应的文件
String cachedFile = checkFromCache(request);
if (!TextUtils.isEmpty(cachedFile)) {
File file = new File(cachedFile);
if (file.exists()) {
DownloadResponse response = tryToHandleDownloadFile(cachedFile, request);
if (response != null) {
mSuccessHandler.notifyAll(-1, -1, response);
handleProcess(request.mDownloadUrl, (int) file.length(), (int) file.length());
if (l != null) {
handleResponseByListener(DOWNLOAD_SUCCESS, request.mDownloadUrl, response, false);
}
}
return true;
}
}
return postRequest(request);
}
@Override
public void run() {
while (!bIsStop) {
waitforUrl();
if (DEBUG) {
CommonUtilsConfig.LOGD_WITH_TIME("<<<<< [[run]] >>>>>");
}
synchronized (mRequestList) {
if (mRequestList.size() == 0) {
// bIsRunning = false;
bIsStop = true;
break;
}
}
if (DEBUG) {
CommonUtilsConfig.LOGD_WITH_TIME("<<<<< [[run]] end synchronized (mRequestList) >>>>>");
}
DownloadRequest request = null;
try {
request = findRequestCanOperate(mRequestList);
if (request == null) {
bIsStop = true;
}
if (request != null && request.mStatus != DownloadRequest.STATUS_CANCEL) {
if (DEBUG) {
CommonUtilsConfig.LOGD(
"================ <<" + Thread.currentThread().getName() + ">> working on : ");
CommonUtilsConfig.LOGD("begin operate one request : " + request.toString());
CommonUtilsConfig.LOGD("============================================");
}
String cacheFile =
InternetUtils.requestBigResourceWithCache(
mContext, request.mDownloadUrl, request.getHeaders());
if (DEBUG) {
CommonUtilsConfig.LOGD("----- after get the cache file : " + cacheFile + " =======");
}
if (!TextUtils.isEmpty(cacheFile)) {
// 将文件移动到下载完成的页面
String filePath = mvFileToDownloadedDir(cacheFile, request.mFileExtension);
if (!TextUtils.isEmpty(filePath)) {
// notify success
// 将文件移动到下载完成的页面
DownloadResponse response = tryToHandleDownloadFile(filePath, request);
if (response != null) {
mSuccessHandler.notifyAll(-1, -1, response);
handleResponseByListener(DOWNLOAD_SUCCESS, request.mDownloadUrl, response, false);
removeRequest(request);
continue;
} else {
handleResponseByListener(DOWNLOAD_FAILED, request.mDownloadUrl, request, false);
mFailedHandler.notifyAll(-1, -1, request);
continue;
}
} else {
handleResponseByListener(DOWNLOAD_FAILED, request.mDownloadUrl, request, false);
mFailedHandler.notifyAll(-1, -1, request);
continue;
}
}
if (request.getmStatus() != DownloadRequest.STATUS_CANCEL) {
handleResponseByListener(DOWNLOAD_FAILED, request.mDownloadUrl, request, false);
mFailedHandler.notifyAll(-1, -1, request);
} else {
handleResponseByListener(DOWNLOAD_FAILED, request.mDownloadUrl, request, true);
}
if (DEBUG) {
CommonUtilsConfig.LOGD("success end operate one request : " + request);
}
}
} catch (Exception e) {
e.printStackTrace();
if (DEBUG) {
CommonUtilsConfig.LOGD("Exception : ", e);
CommonUtilsConfig.LOGD("exception end operate one request : " + request);
CommonUtilsConfig.LOGD(e.getStackTrace().toString());
}
if (request.getmStatus() != DownloadRequest.STATUS_CANCEL) {
handleResponseByListener(DOWNLOAD_FAILED, request.mDownloadUrl, request, false);
mFailedHandler.notifyAll(-1, -1, request);
} else {
handleResponseByListener(DOWNLOAD_FAILED, request.mDownloadUrl, request, true);
}
}
removeRequest(request);
}
System.gc();
}
/**
* 新提交的request会默认
*
* @param request
* @return
*/
public boolean postRequest(DownloadRequest request) {
if (mRequestList == null || request == null || TextUtils.isEmpty(request.mDownloadUrl)) {
return false;
}
if (DEBUG) {
CommonUtilsConfig.LOGD_WITH_TIME(
"<<<<< [[postRequest]] >>>>> ::::::::: " + request.toString());
}
// 检查是否已经下载过此request对应的文件
String cachedFile = checkFromCache(request);
if (!TextUtils.isEmpty(cachedFile)) {
File file = new File(cachedFile);
if (file.exists()) {
DownloadResponse response = tryToHandleDownloadFile(cachedFile, request);
if (response != null) {
mSuccessHandler.notifyAll(-1, -1, response);
handleProcess(request.mDownloadUrl, (int) file.length(), (int) file.length());
}
return true;
}
}
synchronized (mRequestList) {
boolean contain = false;
for (DownloadRequest r : mRequestList) {
if (r.mUrlHashCode == request.mUrlHashCode) {
contain = true;
break;
}
}
if (!contain) {
// mRequestList.add(request);
// 将最新添加的任务放在下载队列的最前面
if (mLastInFirstDownload) {
mRequestList.add(0, request);
} else {
mRequestList.add(request);
}
if (DEBUG) {
CommonUtilsConfig.LOGD(
"postRequest, add request : " + request.toString() + " into download list");
}
}
bIsStop = false;
ThreadPoolSnapShot tss =
CustomThreadPool.getInstance()
.getSpecialThreadSnapShot(FileDownloader.class.getSimpleName());
if (tss == null) {
return false;
} else {
if (tss.taskCount < tss.ALLOWED_MAX_TAKS) {
if (DEBUG) {
CommonUtilsConfig.LOGD("entry into [[postRequest]] to start process ");
}
processWorks();
}
}
}
if (DEBUG) {
CommonUtilsConfig.LOGD_WITH_TIME(
"<<<<< [[postRequest]] end synchronized (mRequestList) >>>>>");
}
synchronized (objLock) {
if (bIsWaiting) {
bIsWaiting = false;
if (DEBUG) {
CommonUtilsConfig.LOGD("try to notify download process begin");
}
objLock.notify();
}
}
if (DEBUG) {
CommonUtilsConfig.LOGD_WITH_TIME("<<<<< [[postRequest]] end synchronized (objLock) >>>>>");
}
return true;
}
public void unRegisteFailedHandler(Handler handler) {
mFailedHandler.unRegisteObserver(handler);
}
public void unRegisteSuccessHandler(Handler handler) {
mSuccessHandler.unRegisteObserver(handler);
}