boolean updateKeepAhead(final MessageSnapshot snapshot) {
if (!FileDownloadStatus.isKeepAhead(getStatus(), snapshot.getStatus())) {
if (FileDownloadLog.NEED_LOG) {
FileDownloadLog.d(
this,
"can't update status change by keep ahead, %d, but the" + " current status is %d, %d",
status,
getStatus(),
getId());
}
return false;
}
update(snapshot);
return true;
}
boolean updateKeepFlow(final MessageSnapshot snapshot) {
final int currentStatus = getStatus();
final int nextStatus = snapshot.getStatus();
if (FileDownloadStatus.paused == currentStatus && FileDownloadStatus.isIng(nextStatus)) {
if (FileDownloadLog.NEED_LOG) {
/**
* Occur such situation, must be the running-status waiting for turning up in flow thread
* pool(or binder thread) when there is someone invoked the {@link #pause()} .
*
* <p>High concurrent cause.
*/
FileDownloadLog.d(
this,
"High concurrent cause, callback pending, but has already" + " be paused %d",
getId());
}
return true;
}
if (!FileDownloadStatus.isKeepFlow(currentStatus, nextStatus)) {
if (FileDownloadLog.NEED_LOG) {
FileDownloadLog.d(
this,
"can't update status change by keep flow, %d, but the" + " current status is %d, %d",
status,
getStatus(),
getId());
}
return false;
}
update(snapshot);
return true;
}
private void update(final MessageSnapshot snapshot) {
setStatus(snapshot.getStatus());
this.isLargeFile = snapshot.isLargeFile();
switch (snapshot.getStatus()) {
case FileDownloadStatus.pending:
this.soFarBytes = snapshot.getLargeSofarBytes();
this.totalBytes = snapshot.getLargeTotalBytes();
// notify
getMessenger().notifyPending(snapshot);
break;
case FileDownloadStatus.started:
// notify
getMessenger().notifyStarted(snapshot);
break;
case FileDownloadStatus.connected:
this.totalBytes = snapshot.getLargeTotalBytes();
this.resuming = snapshot.isResuming();
this.etag = snapshot.getEtag();
markStartDownload();
// notify
getMessenger().notifyConnected(snapshot);
break;
case FileDownloadStatus.progress:
this.soFarBytes = snapshot.getLargeSofarBytes();
calcSpeed(snapshot.getLargeSofarBytes());
// notify
getMessenger().notifyProgress(snapshot);
break;
// case FileDownloadStatus.blockComplete:
/** Handled by {@link FileDownloadList#removeByCompleted(BaseDownloadTask)} */
// break;
case FileDownloadStatus.retry:
this.soFarBytes = snapshot.getLargeSofarBytes();
this.ex = snapshot.getThrowable();
_setRetryingTimes(snapshot.getRetryingTimes());
resetSpeed();
// notify
getMessenger().notifyRetry(snapshot);
break;
case FileDownloadStatus.error:
this.ex = snapshot.getThrowable();
this.soFarBytes = snapshot.getLargeSofarBytes();
calcAverageSpeed(this.soFarBytes);
// to FileDownloadList
FileDownloadList.getImpl().remove(this, snapshot);
break;
case FileDownloadStatus.paused:
/** Handled by {@link #pause()} */
break;
case FileDownloadStatus.completed:
this.isReusedOldFile = snapshot.isReusedDownloadedFile();
if (snapshot.isReusedDownloadedFile()) {
this.etag = snapshot.getEtag();
}
// only carry total data back
this.soFarBytes = snapshot.getLargeTotalBytes();
this.totalBytes = snapshot.getLargeTotalBytes();
calcAverageSpeed(this.soFarBytes);
// to FileDownloadList
FileDownloadList.getImpl().remove(this, snapshot);
break;
case FileDownloadStatus.warn:
resetSpeed();
final int count = FileDownloadList.getImpl().count(getId());
if (count <= 1) {
// 1. this progress kill by sys and relive,
// for add at least one listener
// or 2. pre downloading task has already completed/error/paused
// request status
final int currentStatus = _getStatusFromServer(downloadId);
FileDownloadLog.w(
this,
"warn, but no listener to receive progress, " + "switch to pending %d %d",
getId(),
currentStatus);
//noinspection StatementWithEmptyBody
if (FileDownloadStatus.isIng(currentStatus)) {
// ing, has callbacks
// keep and wait callback
setStatus(FileDownloadStatus.pending);
this.totalBytes = snapshot.getLargeTotalBytes();
this.soFarBytes = snapshot.getLargeSofarBytes();
markStartDownload();
((MessageSnapshot.IWarnMessageSnapshot) snapshot).turnToPending();
getMessenger().notifyPending(snapshot);
break;
} else {
// already over and no callback
}
}
// to FileDownloadList
FileDownloadList.getImpl().remove(this, snapshot);
break;
}
}