/**
* Decrease the segment count in the according row of the main window download table.
*
* @param filename The filename of the row to update in main window
*/
private void decrSegCount(final String filename) {
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
mainApp.decrSegCount(filename);
}
});
}
/**
* Update the progress bar of the currently downloaded file in main window. Only update if progess
* has at least increased by one percent of the total file size of the downloaded file.
*
* @param downloadedBytes The current amount of downloaded bytes
* @param lastProgBarUpdate The byte count at the last progress bar update
* @param file The download file
* @return The byte count at the last progress bar update
*/
private int updateProgressBar(int downloadedBytes, int lastProgBarUpdate, DownloadFile file) {
int totalSize = (int) file.getTotalFileSize();
// only update progess bar if progess has at least increased by one percent
int diff = downloadedBytes - lastProgBarUpdate;
int onePercent = (int) totalSize / 100;
if (diff >= onePercent) {
final String filename = file.getFilename();
final int db = downloadedBytes;
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
mainApp.updateDownloadQueue(filename, db);
}
});
return downloadedBytes; // prog bar updated, so return the new byte count
}
return lastProgBarUpdate; // no update, so return the previous byte count
}
/**
* This method is called when a whole download file has been finished downloading. It updates main
* application window and starts the decoding thread.
*
* @param dlFile The DownloadFile object that is finished
*/
private void handleFinishedDlFile(final DownloadFile dlFile) {
final String filename = dlFile.getFilename();
logger.msg("File downloading finished: " + filename, MyLogger.SEV_INFO);
// notify application that download has finished
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
mainApp.fileDownloadFinished(filename);
mainApp.setProgBarToDecoding(filename, dlFile.getSegCount());
}
});
// create result vector
Vector<byte[]> articleData = new Vector<byte[]>();
Vector<RspHandler> rspHandlers = dlFileRspHandlerMap.get(dlFile);
for (int i = 0; i < rspHandlers.size(); i++) {
byte[] tmpArray = removeFirstLine(rspHandlers.get(i).getData(true));
articleData.add(tmpArray);
rspHandlers.set(i, null); // free some memory
}
// call garbage collector
rspHandlers = null;
dlFileRspHandlerMap.remove(dlFile);
Runtime.getRuntime().gc();
logger.msg(
"First line(s) dump:\n" + HelloNzbToolkit.firstLineFromByteData(articleData.get(0), 2),
MyLogger.SEV_DEBUG);
// determine data encoding (yenc or UU)
String encoding = null;
boolean bHasData = false;
for (int i = 0; i < articleData.size(); i++) {
byte[] abyteHelp = articleData.get(i);
if (abyteHelp.length > 0) {
bHasData = true;
if (bytesEqualsString(abyteHelp, "=ybegin")) {
encoding = "yenc";
break;
} else if (bytesEqualsString(abyteHelp, "begin ")) {
encoding = "uu";
break;
}
}
}
if (encoding == null) {
if (bHasData) {
encoding = "yenc";
logger.msg(
"No suitable decoder (no data) found for downloaded file: "
+ dlFile.getFilename()
+ " -- Assuming yenc.",
MyLogger.SEV_WARNING);
} else {
// too bad, no decoder found for this file :(
logger.msg(
"No suitable decoder found for downloaded file (no data): " + dlFile.getFilename(),
MyLogger.SEV_ERROR);
// update main application window
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
mainApp.fileDecodingFinished(dlFile.getFilename());
}
});
return;
}
}
/*
* // determine data encoding String encoding = null;
* if(bytesEqualsString(articleData.get(0), "=ybegin")) encoding =
* "yenc"; else if(bytesEqualsString(articleData.get(0), "begin "))
* encoding = "uu"; else { // too bad, no decoder found for this file :(
* logger.msg("No suitable decoder found for downloaded file: " +
* dlFile.getFilename(), MyLogger.SEV_ERROR);
*
* // update main application window SwingUtilities.invokeLater(new
* Runnable() { public void run() {
* mainApp.fileDecodingFinished(dlFile.getFilename()); } } );
*
* return; }
*/
// start data decoding background thread
FileDecoder fileDecoder = new FileDecoder(mainApp, dlDir, dlFile, articleData, encoding);
Thread t = new Thread(fileDecoder);
t.start();
}