org.musicontroller.core.jobs
Class ImportJob

java.lang.Object
  org.musicontroller.core.jobs.ImportJob

public class ImportJob
extends java.lang.Object

The ImportJob is responsible for unpacking zip-files and placing unpacked files in the appropriate directories. The ImportJob is run every few seconds. It scans for files in the upload-directory. If there are files present, the first will be unpacked into the unpack-directory.

Author:

Varienaja

Field Summary

static java.lang.String	READY_FOR_INSPECTION
static java.lang.String	TRANSFERRING

Constructor Summary

ImportJob()

Method Summary

static void	addData(java.io.InputStream in, java.lang.String name) Call this method to add an inputstream to the TODO-list
int	execute() This method is to be executed periodically.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

READY_FOR_INSPECTION

public static final java.lang.String READY_FOR_INSPECTION

See Also:

Constant Field Values

TRANSFERRING

public static final java.lang.String TRANSFERRING

See Also:

Constant Field Values

Constructor Detail

ImportJob

public ImportJob()

Method Detail

addData

public static void addData(java.io.InputStream in,
                           java.lang.String name)

Call this method to add an inputstream to the TODO-list

Parameters:

in - An InputStream

name - A name (filename without path) for the InputStream

execute

public int execute()

This method is to be executed periodically. It checks for the presence of new 'todos', and if there is something to do, the file is moved (non-zip) or unpacked (zip) to the Unpackdir ( @see FileUtils). This method should not be run in parallel (avoid disk-thrashing unpacking many files at a time). Unpacked files are unpacked into a 'working'-directory. (busyunzipping) When the job is done, this directory is renamed to 'readyforinspection' to signal other processes they can read from the directory now. As long as the directory is still named busyunzipping, files can be in an incomplete state and should not be read.

Returns:

true if there was something done, alse if there was nothing to do.