com.atlassian.jira.util

Class Lock

java.lang.Object

com.atlassian.jira.util.Lock

public class Lock
extends Object

Used to lock resources using a file system file as a lock

Field Summary

Fields

Modifier and Type	Field and Description
static long	LOOP_WAIT_TIME

Constructor Summary

Constructors

Constructor and Description
Lock(String fileName)
Lock(String directoryName, String fileName)

Method Summary

Modifier and Type	Method and Description
String	getLockFilePath()
boolean	isLocked()
boolean	obtain()
boolean	obtain(long timeout) Try to obtain a lock, wait for timeout ms if necessary
void	release()

Methods inherited from class java.lang.Object

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

Field Detail

LOOP_WAIT_TIME

public static final long LOOP_WAIT_TIME

See Also:

Constant Field Values

Constructor Detail

Lock

public Lock(String fileName)

Lock

public Lock(String directoryName,
            String fileName)

Method Detail

obtain

public boolean obtain()
               throws IOException

Throws:

IOException

obtain

public boolean obtain(long timeout)
               throws IOException

Try to obtain a lock, wait for timeout ms if necessary

Parameters:

timeout - number of milliseconds to wait for (if necessary)

Returns:

try if the lock was successfully obtained, false otherwise

Throws:

IOException - if an error occurs creating the lock

release

public void release()

isLocked

public boolean isLocked()

getLockFilePath

public String getLockFilePath()