private void startNewDownloads() {
boolean isLimited = true;
int currentAllowedDownloadCount = 0;
{
final int allowedConcurrentDownloads =
Core.frostSettings.getIntValue(SettingsClass.DOWNLOAD_MAX_THREADS);
if (allowedConcurrentDownloads <= 0) {
isLimited = false;
} else {
int runningDownloads = 0;
for (final FrostDownloadItem dlItem : downloadModelItems.values()) {
if (!dlItem.isExternal() && dlItem.getState() == FrostDownloadItem.STATE_PROGRESS) {
runningDownloads++;
}
}
currentAllowedDownloadCount = allowedConcurrentDownloads - runningDownloads;
if (currentAllowedDownloadCount < 0) {
currentAllowedDownloadCount = 0;
}
}
}
{
while (!isLimited || currentAllowedDownloadCount > 0) {
final FrostDownloadItem dlItem =
FileTransferManager.inst().getDownloadManager().selectNextDownloadItem();
if (dlItem == null) {
break;
}
// start the download
if (startDownload(dlItem)) {
currentAllowedDownloadCount--;
}
}
}
}
public boolean startDownload(final FrostDownloadItem dlItem) {
if (dlItem == null || dlItem.getState() != FrostDownloadItem.STATE_WAITING) {
return false;
}
dlItem.setDownloadStartedTime(System.currentTimeMillis());
dlItem.setState(FrostDownloadItem.STATE_PROGRESS);
final String gqid = dlItem.getGqIdentifier();
final File targetFile = new File(dlItem.getDownloadFilename());
boolean isDda =
fcpTools.startPersistentGet(dlItem.getKey(), gqid, targetFile, dlItem.getPriority());
dlItem.setDirect(!isDda);
return true;
}
public void persistentRequestRemoved(final FcpPersistentGet downloadRequest) {
if (downloadModelItems.containsKey(downloadRequest.getIdentifier())) {
final FrostDownloadItem dlItem = downloadModelItems.get(downloadRequest.getIdentifier());
if (dlItem.isExternal()) {
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
List<FrostDownloadItem> itemList = new ArrayList<FrostDownloadItem>();
itemList.add(dlItem);
downloadModel.removeItems(itemList);
}
});
} else {
if (dlItem.isInternalRemoveExpected()) {
dlItem.setInternalRemoveExpected(false); // clear flag
} else if (dlItem.getState() != FrostDownloadItem.STATE_DONE) {
dlItem.setEnabled(false);
dlItem.setState(FrostDownloadItem.STATE_FAILED);
dlItem.setErrorCodeDescription("Disappeared from global queue");
}
}
}
}
/** Apply the states of FcpRequestGet to the FrostDownloadItem. */
private void applyState(final FrostDownloadItem dlItem, final FcpPersistentGet getReq) {
// when cancelled and we expect this, don't set failed; don't even set the old priority!
if (dlItem.isInternalRemoveExpected() && getReq.isFailed()) {
final int returnCode = getReq.getCode();
if (returnCode == 25) {
return;
}
}
applyPriority(dlItem, getReq);
if (dlItem.isDirect() != getReq.isDirect()) {
dlItem.setDirect(getReq.isDirect());
}
if (!getReq.isProgressSet() && !getReq.isSuccess() && !getReq.isFailed()) {
if (dlItem.getState() == FrostDownloadItem.STATE_WAITING) {
dlItem.setState(FrostDownloadItem.STATE_PROGRESS);
}
return;
}
if (getReq.isProgressSet()) {
final int doneBlocks = getReq.getDoneBlocks();
final int requiredBlocks = getReq.getRequiredBlocks();
final int totalBlocks = getReq.getTotalBlocks();
final boolean isFinalized = getReq.isFinalized();
if (totalBlocks > 0) {
dlItem.setDoneBlocks(doneBlocks);
dlItem.setRequiredBlocks(requiredBlocks);
dlItem.setTotalBlocks(totalBlocks);
dlItem.setFinalized(isFinalized);
dlItem.fireValueChanged();
}
if (dlItem.getState() != FrostDownloadItem.STATE_PROGRESS) {
dlItem.setState(FrostDownloadItem.STATE_PROGRESS);
}
}
if (getReq.isSuccess()) {
// maybe progress was not completely sent
dlItem.setFinalized(true);
if (dlItem.getTotalBlocks() > 0 && dlItem.getDoneBlocks() < dlItem.getRequiredBlocks()) {
dlItem.setDoneBlocks(dlItem.getRequiredBlocks());
dlItem.fireValueChanged();
}
if (dlItem.isExternal()) {
dlItem.setFileSize(getReq.getFilesize());
dlItem.setState(FrostDownloadItem.STATE_DONE);
} else {
if (dlItem.isDirect()) {
maybeEnqueueDirectGet(dlItem, getReq.getFilesize());
} else {
final FcpResultGet result = new FcpResultGet(true);
final File targetFile = new File(dlItem.getDownloadFilename());
FileTransferManager.inst()
.getDownloadManager()
.notifyDownloadFinished(dlItem, result, targetFile);
}
}
}
if (getReq.isFailed()) {
final String desc = getReq.getCodeDesc();
if (dlItem.isExternal()) {
dlItem.setState(FrostDownloadItem.STATE_FAILED);
dlItem.setErrorCodeDescription(desc);
} else {
final int returnCode = getReq.getCode();
final boolean isFatal = getReq.isFatal();
final String redirectURI = getReq.getRedirectURI();
final FcpResultGet result = new FcpResultGet(false, returnCode, desc, isFatal, redirectURI);
final File targetFile = new File(dlItem.getDownloadFilename());
final boolean retry =
FileTransferManager.inst()
.getDownloadManager()
.notifyDownloadFinished(dlItem, result, targetFile);
if (retry) {
fcpTools.removeRequest(getReq.getIdentifier());
startDownload(dlItem); // restart immediately
}
}
}
}