/** This method is used to retrieve metaInfo during sending. */
public static synchronized MetaInfo retrieveMetaInfo(
String fileId,
int blockSize,
int thresholdSize,
String transId,
String originalEventId,
int totalBlocks,
int lastBlockSize)
throws FileAccessException, ApplicationException {
if (fileId == null) throw new ApplicationException("FileId cannot null!");
if (transId == null) throw new ApplicationException("Transaction Id cannot null!");
if (originalEventId == null) throw new ApplicationException("Original event Id cannot null!");
if (allMetaInfo.containsKey(fileId)) {
MetaInfo meta = (MetaInfo) allMetaInfo.get(fileId);
meta.checkMetaInfo(
fileId, blockSize, thresholdSize, transId, originalEventId, totalBlocks, lastBlockSize);
return meta;
} else {
MetaInfo meta =
new MetaInfo(
fileId,
blockSize,
thresholdSize,
transId,
originalEventId,
totalBlocks,
lastBlockSize);
allMetaInfo.put(fileId, meta);
return meta;
}
}
/** This method is used to retrieve metaInfo when receiving file. */
public static synchronized MetaInfo retrieveMetaInfo(String fileId, int totalBlocks)
throws FileAccessException, ApplicationException {
if (fileId == null) throw new ApplicationException("FileId cannot null!");
if (allMetaInfo.containsKey(fileId)) {
MetaInfo meta = (MetaInfo) allMetaInfo.get(fileId);
meta.checkMetaInfo(fileId);
if (meta.getTotalBlocks() < totalBlocks) meta.setTotalBlocks(totalBlocks);
return meta;
} else {
MetaInfo meta = new MetaInfo(fileId, totalBlocks);
allMetaInfo.put(fileId, meta);
return meta;
}
}
public static synchronized void clearExpiredMetaInfoInMem() {
Enumeration fileIdList = allMetaInfo.keys();
Vector expiredFileIdList = new Vector();
MetaInfo metaInfo = null;
String fileId = null;
while (fileIdList.hasMoreElements()) {
fileId = (String) fileIdList.nextElement();
metaInfo = (MetaInfo) allMetaInfo.get(fileId);
if ((metaInfo.getTimeLastAction() + 300000) < TimeUtil.localToUtc())
expiredFileIdList.add(fileId);
}
for (int i = 0; i < expiredFileIdList.size(); i++) {
fileId = (String) expiredFileIdList.get(i);
removeMetaInfoInMem(fileId);
}
}