public static synchronized void removeMetaInfo(String fileId) throws FileAccessException {
if (fileId == null) return;
removeMetaInfoInMem(fileId);
if (FileHelper.exist(
IPackagingConstants.PACKAGING_PATH, getSubPath(fileId), META_INFO_FILENAME))
FileHelper.delete(IPackagingConstants.PACKAGING_PATH, getSubPath(fileId), META_INFO_FILENAME);
}
/** This Constructor is used to create metaInfo during sending. */
private MetaInfo(
String fileId,
int blockSize,
int thresholdSize,
String transId,
String originalEventId,
int totalBlocks,
int lastBlockSize)
throws FileAccessException, ApplicationException {
_subPath = getSubPath(fileId);
if (FileHelper.exist(IPackagingConstants.PACKAGING_PATH, _subPath, META_INFO_FILENAME)) {
getMetaInfoFromFile(fileId);
checkMetaInfo(
fileId, blockSize, thresholdSize, transId, originalEventId, totalBlocks, lastBlockSize);
} else {
_fileId = fileId;
_transId = transId;
_blockSize = blockSize;
_thresholdSize = thresholdSize;
_originalEventId = originalEventId;
_totalBlocks = totalBlocks;
_lastBlockSize = lastBlockSize;
createMetaInfo();
storeMetaInfoIntoFile();
}
}
private synchronized void storeMetaInfoIntoFile() throws FileAccessException {
_timeLastAction = TimeUtil.localToUtc();
File tmpFile = new File(META_INFO_FILENAME);
FileWriter file = null;
BufferedWriter bw = null;
PrintWriter pw = null;
try {
file = new FileWriter(tmpFile);
bw = new BufferedWriter(file);
pw = new PrintWriter(bw);
pw.println(_blockSize);
pw.println(parseBlockReceivedToString());
pw.println(_totalBlocks);
pw.println(_fileId);
pw.println(_lastBlock);
pw.println(_lastBlockSent);
pw.println(_lastBlockSize);
pw.println(_subPath);
pw.println(_thresholdSize);
pw.println(_transId);
pw.println(parseBlockFilenameToString());
pw.println(_timeCreated);
pw.println(_originalEventId);
pw.println(_GNCI);
pw.println(_finishedOnce);
int originalDataLen = (_originalData == null) ? -1 : _originalData.length;
pw.println(originalDataLen);
for (int i = 0; i < originalDataLen; i++) {
if (_originalData[i] != null) pw.println(_originalData[i]);
else pw.println(NULL_DELIMITER);
}
pw.println(_timeLastAction);
close(pw);
if (FileHelper.exist(IPackagingConstants.PACKAGING_PATH, _subPath, META_INFO_FILENAME))
FileHelper.replace(
IPackagingConstants.PACKAGING_PATH, _subPath, META_INFO_FILENAME, tmpFile);
else
FileHelper.create(
IPackagingConstants.PACKAGING_PATH, _subPath, META_INFO_FILENAME, tmpFile);
tmpFile.delete();
} catch (IOException ioe) {
throw new FileAccessException("Unable to store meta info to file.");
} finally {
close(pw);
}
}
/** This Constructor is used to create metaInfo when receiving. */
private MetaInfo(String fileId, int totalBlocks)
throws FileAccessException, ApplicationException {
_subPath = getSubPath(fileId);
if (FileHelper.exist(IPackagingConstants.PACKAGING_PATH, _subPath, META_INFO_FILENAME)) {
getMetaInfoFromFile(fileId);
checkMetaInfo(fileId);
if (_totalBlocks < totalBlocks) {
_totalBlocks = totalBlocks; // new total Block value
storeMetaInfoIntoFile();
}
} else {
_fileId = fileId;
createMetaInfo();
if (_totalBlocks < totalBlocks) _totalBlocks = totalBlocks;
storeMetaInfoIntoFile();
}
}
private synchronized void getMetaInfoFromFile(String fileId) throws FileAccessException {
// String[] metaInfo = new String[6];
File fileDesc = null;
FileReader reader = null;
BufferedReader breader = null;
try {
fileDesc =
FileHelper.getFile(
IPackagingConstants.PACKAGING_PATH, getSubPath(fileId), META_INFO_FILENAME);
reader = new FileReader(fileDesc);
breader = new BufferedReader(reader);
_blockSize = Integer.parseInt(breader.readLine());
parseStringToBlockReceived(breader.readLine());
_totalBlocks = Integer.parseInt(breader.readLine());
_fileId = breader.readLine();
_lastBlock = Integer.parseInt(breader.readLine());
_lastBlockSent = Integer.parseInt(breader.readLine());
_lastBlockSize = Integer.parseInt(breader.readLine());
_subPath = breader.readLine();
_thresholdSize = Integer.parseInt(breader.readLine());
_transId = breader.readLine();
parseStringToBlockFilename(breader.readLine());
_timeCreated = breader.readLine();
_originalEventId = breader.readLine();
_GNCI = breader.readLine();
_finishedOnce = Boolean.valueOf(breader.readLine()).booleanValue();
int originalDataLen = Integer.parseInt(breader.readLine());
if (originalDataLen < 0) _originalData = null;
else {
_originalData = new String[originalDataLen];
for (int i = 0; i < originalDataLen; i++) {
_originalData[i] = breader.readLine();
if (NULL_DELIMITER.equals(_originalData[i])) _originalData[i] = null;
}
}
_timeLastAction = Long.valueOf(breader.readLine()).longValue();
} catch (IOException ioe) {
throw new FileAccessException("Unable to read meta info from file.", ioe);
} finally {
close(breader);
}
}
/** This Constructor is used to create metaInfo when receiving acknowledgement. */
private MetaInfo(String fileId) throws FileAccessException {
_subPath = getSubPath(fileId);
if (FileHelper.exist(IPackagingConstants.PACKAGING_PATH, _subPath, META_INFO_FILENAME))
getMetaInfoFromFile(fileId);
else throw new FileAccessException("Meta Info file not found!");
}