/**
* Add the checkpoint information of a file. The information is from the user <code>userId</code>.
*
* <p>This method is normally triggered from {@link tachyon.client.FileOutStream#close()} if and
* only if {@link tachyon.client.WriteType#isThrough()} is true. The current implementation of
* checkpointing is that through {@link tachyon.client.WriteType} operations write to {@link
* tachyon.UnderFileSystem} on the client's write path, but under a user temp directory (temp
* directory is defined in the worker as {@link #getUserUnderfsTempFolder(long)}).
*
* @param userId The user id of the client who send the notification
* @param fileId The id of the checkpointed file
* @throws FileDoesNotExistException
* @throws SuspectedFileSizeException
* @throws FailedToCheckpointException
* @throws BlockInfoException
* @throws TException
*/
public void addCheckpoint(long userId, int fileId)
throws FileDoesNotExistException, SuspectedFileSizeException, FailedToCheckpointException,
BlockInfoException, TException {
// TODO This part need to be changed.
String srcPath = CommonUtils.concat(getUserUnderfsTempFolder(userId), fileId);
String dstPath = CommonUtils.concat(COMMON_CONF.UNDERFS_DATA_FOLDER, fileId);
try {
if (!mUnderFs.rename(srcPath, dstPath)) {
throw new FailedToCheckpointException("Failed to rename " + srcPath + " to " + dstPath);
}
} catch (IOException e) {
throw new FailedToCheckpointException("Failed to rename " + srcPath + " to " + dstPath);
}
long fileSize;
try {
fileSize = mUnderFs.getFileSize(dstPath);
} catch (IOException e) {
throw new FailedToCheckpointException("Failed to getFileSize " + dstPath);
}
mMasterClient.addCheckpoint(mWorkerId, fileId, fileSize, dstPath);
}
