/** decode singlepart article */
public void decodeSinglepart(NntpArticleHeader header) {
header.setStatus(NntpArticleHeader.STATUS_DECODING);
YDecoder yDec = new YDecoder();
File cachefile =
new File(
cacheDir
+ File.separator
+ header.getServer()
+ "."
+ header.getGroup()
+ "."
+ header.getID());
try {
FileInputStream fis = new FileInputStream(cachefile);
if (!yDec.checkYenc(cachefile)) {
throw new NotYencException();
}
File path = new File(downloadDir + File.separator + header.getGroup());
checkPath(path);
File output = new File(path + File.separator + yDec.getFilename(cachefile));
FileOutputStream fos = new FileOutputStream(output);
yDec.setInputStream(fis);
yDec.setOutputStream(fos);
// now call decode
try {
yDec.decode();
fos.flush();
fos.close();
} catch (IOException ioe) {
log.warn("io exception: " + ioe.getMessage());
output.delete();
fos.close();
fis.close();
cleanupCache(header);
return;
}
} catch (NotYencException nye) {
File path = new File(downloadDir + File.separator + header.getGroup());
checkPath(path);
uudecodeSinglepart(header, cachefile);
} catch (IOException ioe) {
log.warn("IO Exception: " + ioe.getMessage());
ioe.printStackTrace();
return;
}
cleanupCache(header);
// header.setStatus(NntpArticleHeader.STATUS_READ);
// should generate HeaderChangeEvent here
log.debug("total memory after decoding " + Runtime.getRuntime().totalMemory());
}
/** decode multipart article */
public void decodeMultipart(NntpArticleHeader header) {
header.setStatus(NntpArticleHeader.STATUS_DECODING);
YDecoder yDec = new YDecoder();
try {
// order our parts
NntpArticlePartID[] ids = header.getParts();
int[] orderparts = new int[ids.length];
for (int x = 0; x < ids.length; x++) {
NntpArticlePartID partID = ids[x];
File myfile = this.getCacheFile(header, partID);
if (!yDec.checkYenc(myfile) || yDec.getPartNumber(myfile) == -1) {
throw new NotYencException();
}
orderparts[yDec.getPartNumber(myfile) - 1] = x;
}
// first part ?
NntpArticlePartID firstPart = ids[orderparts[0]];
File firstFile = this.getCacheFile(header, firstPart);
FileInputStream fis = new FileInputStream(firstFile);
// test if yEnc
if (yDec.getFilename(firstFile) == null) {
log.error("couldn't get yEnc filename");
throw new NotYencException();
}
String filename = yDec.getFilename(firstFile);
fis.close();
// create the path to our target
File path = new File(downloadDir + File.separator + header.getGroup());
checkPath(path);
// create the target file in the path
File target = new File(path + File.separator + filename);
FileOutputStream fos = new FileOutputStream(target);
yDec.setOutputStream(fos);
// now decode in order
// log.debug("decoding: " + header.getSubject());
long timer = System.currentTimeMillis();
for (int n = 0; n < orderparts.length; n++) {
NntpArticlePartID currentPart = ids[orderparts[n]];
File myfile = this.getCacheFile(header, currentPart);
fis = new FileInputStream(myfile);
yDec.setInputStream(fis);
try {
yDec.decode();
} catch (IOException ioe) {
log.error("io exception: " + ioe.getMessage());
cleanupCache(header);
target.delete();
return;
} catch (Exception wth) {
log.error("what the hell happened downloading article?" + wth.getMessage());
cleanupCache(header);
target.delete();
return;
} finally {
fis.close();
}
} // end of for
log.debug("decoded file in : " + ((System.currentTimeMillis() - timer) / 1000));
// log.info("finished downloading multipart article");
// close our target file resource
cleanupCache(header);
fos.flush();
fos.close();
header.setStatus(NntpArticleHeader.STATUS_READ);
} catch (NotYencException nye) {
log.debug("not a yEnc encoding, possibly uuencoded " + nye.toString());
long timer = System.currentTimeMillis();
uudecodeMultipart(header);
log.debug("decoded file in : " + ((System.currentTimeMillis() - timer) / 1000));
cleanupCache(header);
header.setStatus(NntpArticleHeader.STATUS_READ);
return;
} catch (IOException ioe) {
log.error("ioe exception caught " + ioe.getMessage());
cleanupCache(header);
return;
} catch (ArrayIndexOutOfBoundsException oobe) {
log.error("array oobe while sorting yenc parts: " + oobe.getMessage());
cleanupCache(header);
return;
}
}