rapture.lock.mongodb

Class MongoLockHandler

java.lang.Object

rapture.lock.mongodb.MongoLockHandler

All Implemented Interfaces:

rapture.lock.ILockingHandler

public class MongoLockHandler
extends java.lang.Object
implements rapture.lock.ILockingHandler

An implementation of a lock strategy on Mongo. The idea is that we need to acquire a named lock, and then we release it later. If we fail to release it, it will automatically become available after secondsToHold. The lock in mongo is implemented by attempting to create a document that has the following characteristics { name = lockName, locked=true, freeTime=(some long time) }

Constructor Summary

Constructors

Constructor and Description
MongoLockHandler()

Method Summary

Modifier and Type	Method and Description
rapture.common.LockHandle	acquireLock(java.lang.String lockHolder, java.lang.String lockName, long secondsToWait, long secondsToHold)
java.lang.Boolean	forceReleaseLock(java.lang.String lockName)
protected com.mongodb.client.MongoCollection<org.bson.Document>	getLockCollection()
java.lang.Boolean	releaseLock(java.lang.String lockHolder, java.lang.String lockName, rapture.common.LockHandle lockHandle)
void	setConfig(java.util.Map<java.lang.String,java.lang.String> config)
void	setInstanceName(java.lang.String instanceName)

Methods inherited from class java.lang.Object

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

Constructor Detail

MongoLockHandler

public MongoLockHandler()

Method Detail

setInstanceName

public void setInstanceName(java.lang.String instanceName)

Specified by:

setInstanceName in interface rapture.lock.ILockingHandler

acquireLock

public rapture.common.LockHandle acquireLock(java.lang.String lockHolder,
                                             java.lang.String lockName,
                                             long secondsToWait,
                                             long secondsToHold)

Specified by:

acquireLock in interface rapture.lock.ILockingHandler

getLockCollection

protected com.mongodb.client.MongoCollection<org.bson.Document> getLockCollection()

releaseLock

public java.lang.Boolean releaseLock(java.lang.String lockHolder,
                                     java.lang.String lockName,
                                     rapture.common.LockHandle lockHandle)

Specified by:

releaseLock in interface rapture.lock.ILockingHandler

setConfig

public void setConfig(java.util.Map<java.lang.String,java.lang.String> config)

Specified by:

setConfig in interface rapture.lock.ILockingHandler

forceReleaseLock

public java.lang.Boolean forceReleaseLock(java.lang.String lockName)

Specified by:

forceReleaseLock in interface rapture.lock.ILockingHandler