Package org.cdlib.mrt.zk

Class MerrittLocks

java.lang.Object

org.cdlib.mrt.zk.MerrittLocks

public class MerrittLocks
extends Object

Static methods to set and release Merritt Locks. Object-level locks will be ephemeral. Queue and collection level locks will be persistent.

Constructor Summary

Constructors

Constructor	Description
MerrittLocks()

Method Summary

Modifier and Type	Method	Description
static boolean	checkLockCollection(org.apache.zookeeper.ZooKeeper client, String mnemonic)
static boolean	checkLockIngestQueue(org.apache.zookeeper.ZooKeeper client)
static boolean	checkLockLargeAccessQueue(org.apache.zookeeper.ZooKeeper client)
static boolean	checkLockObjectInventory(org.apache.zookeeper.ZooKeeper client, String ark)
static boolean	checkLockObjectStorage(org.apache.zookeeper.ZooKeeper client, String ark)
static boolean	checkLockSmallAccessQueue(org.apache.zookeeper.ZooKeeper client)
static void	initLocks(org.apache.zookeeper.ZooKeeper client)
static boolean	lockCollection(org.apache.zookeeper.ZooKeeper client, String mnemonic)
static boolean	lockIngestQueue(org.apache.zookeeper.ZooKeeper client)
static boolean	lockLargeAccessQueue(org.apache.zookeeper.ZooKeeper client)
static boolean	lockObjectInventory(org.apache.zookeeper.ZooKeeper client, String ark)
static boolean	lockObjectStorage(org.apache.zookeeper.ZooKeeper client, String ark)
static boolean	lockSmallAccessQueue(org.apache.zookeeper.ZooKeeper client)
static void	unlockCollection(org.apache.zookeeper.ZooKeeper client, String mnemonic)
static void	unlockIngestQueue(org.apache.zookeeper.ZooKeeper client)
static void	unlockLargeAccessQueue(org.apache.zookeeper.ZooKeeper client)
static void	unlockObjectInventory(org.apache.zookeeper.ZooKeeper client, String ark)
static void	unlockObjectStorage(org.apache.zookeeper.ZooKeeper client, String ark)
static void	unlockSmallAccessQueue(org.apache.zookeeper.ZooKeeper client)

Methods inherited from class java.lang.Object

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

Constructor Detail

MerrittLocks

public MerrittLocks()

Method Detail

initLocks

public static void initLocks(org.apache.zookeeper.ZooKeeper client)
                      throws org.apache.zookeeper.KeeperException,
                             InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

lockIngestQueue

public static boolean lockIngestQueue(org.apache.zookeeper.ZooKeeper client)

unlockIngestQueue

public static void unlockIngestQueue(org.apache.zookeeper.ZooKeeper client)
                              throws InterruptedException,
                                     org.apache.zookeeper.KeeperException

Throws:

InterruptedException

org.apache.zookeeper.KeeperException

checkLockIngestQueue

public static boolean checkLockIngestQueue(org.apache.zookeeper.ZooKeeper client)
                                    throws org.apache.zookeeper.KeeperException,
                                           InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

lockLargeAccessQueue

public static boolean lockLargeAccessQueue(org.apache.zookeeper.ZooKeeper client)

unlockLargeAccessQueue

public static void unlockLargeAccessQueue(org.apache.zookeeper.ZooKeeper client)
                                   throws InterruptedException,
                                          org.apache.zookeeper.KeeperException

Throws:

InterruptedException

org.apache.zookeeper.KeeperException

checkLockLargeAccessQueue

public static boolean checkLockLargeAccessQueue(org.apache.zookeeper.ZooKeeper client)
                                         throws org.apache.zookeeper.KeeperException,
                                                InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

lockSmallAccessQueue

public static boolean lockSmallAccessQueue(org.apache.zookeeper.ZooKeeper client)

unlockSmallAccessQueue

public static void unlockSmallAccessQueue(org.apache.zookeeper.ZooKeeper client)
                                   throws InterruptedException,
                                          org.apache.zookeeper.KeeperException

Throws:

InterruptedException

org.apache.zookeeper.KeeperException

checkLockSmallAccessQueue

public static boolean checkLockSmallAccessQueue(org.apache.zookeeper.ZooKeeper client)
                                         throws org.apache.zookeeper.KeeperException,
                                                InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

lockCollection

public static boolean lockCollection(org.apache.zookeeper.ZooKeeper client,
                                     String mnemonic)

unlockCollection

public static void unlockCollection(org.apache.zookeeper.ZooKeeper client,
                                    String mnemonic)
                             throws InterruptedException,
                                    org.apache.zookeeper.KeeperException

Throws:

InterruptedException

org.apache.zookeeper.KeeperException

checkLockCollection

public static boolean checkLockCollection(org.apache.zookeeper.ZooKeeper client,
                                          String mnemonic)
                                   throws org.apache.zookeeper.KeeperException,
                                          InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

lockObjectStorage

public static boolean lockObjectStorage(org.apache.zookeeper.ZooKeeper client,
                                        String ark)

unlockObjectStorage

public static void unlockObjectStorage(org.apache.zookeeper.ZooKeeper client,
                                       String ark)
                                throws InterruptedException,
                                       org.apache.zookeeper.KeeperException

Throws:

InterruptedException

org.apache.zookeeper.KeeperException

checkLockObjectStorage

public static boolean checkLockObjectStorage(org.apache.zookeeper.ZooKeeper client,
                                             String ark)
                                      throws org.apache.zookeeper.KeeperException,
                                             InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

lockObjectInventory

public static boolean lockObjectInventory(org.apache.zookeeper.ZooKeeper client,
                                          String ark)

unlockObjectInventory

public static void unlockObjectInventory(org.apache.zookeeper.ZooKeeper client,
                                         String ark)
                                  throws InterruptedException,
                                         org.apache.zookeeper.KeeperException

Throws:

InterruptedException

org.apache.zookeeper.KeeperException

checkLockObjectInventory

public static boolean checkLockObjectInventory(org.apache.zookeeper.ZooKeeper client,
                                               String ark)
                                        throws org.apache.zookeeper.KeeperException,
                                               InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException