Examples with GlobalLockImpl com.emc.storageos.db.client.impl.GlobalLockImpl used on opensource projects

Example 6 with GlobalLockImpl

use of com.emc.storageos.db.client.impl.GlobalLockImpl in project coprhd-controller by CoprHD.

the class DbGlobalLockTest method testVdcSharedGlobalLock.

@Test
public void testVdcSharedGlobalLock() throws Exception {
    // VdcShared MODE
    _logger.info("Starting vdc shared global lock test");
    DbClientImpl dbClient = (DbClientImpl) getDbClient();
    boolean flag;
    String vdc = "vdc1";
    String lockname = "testlock2";
    GlobalLockImpl glock = new GlobalLockImpl(dbClient, lockname, GlobalLock.GL_Mode.GL_VdcShared_MODE, 0, vdc);
    // acquire the lock
    flag = glock.acquire("vipr1");
    Assert.assertTrue(flag);
    // get lock owner
    String owner = null;
    owner = glock.getOwner();
    Assert.assertEquals(owner, vdc);
    // re-enter the lock again with the same owner
    flag = glock.acquire("vipr2");
    Assert.assertTrue(flag);
    // acquire the lock with a different local owner within the same Vdc
    GlobalLockImpl glock2 = new GlobalLockImpl(dbClient, lockname, GlobalLock.GL_Mode.GL_VdcShared_MODE, 0, vdc);
    flag = glock2.acquire("vipr2");
    Assert.assertTrue(flag);
    // try to acquire the lock from a different vdc
    GlobalLockImpl glock3 = new GlobalLockImpl(dbClient, lockname, GlobalLock.GL_Mode.GL_VdcShared_MODE, 0, "vdc2");
    flag = glock3.acquire("vipr2");
    Assert.assertFalse(flag);
    // release the lock from vipr2
    flag = glock2.release("vipr2");
    Assert.assertTrue(flag);
    // get lock owner
    owner = glock.getOwner();
    Assert.assertEquals(owner, vdc);
    // release the lock from vipr1
    flag = glock.release("vipr1");
    Assert.assertTrue(flag);
    // get lock owner again
    owner = glock.getOwner();
    Assert.assertEquals(owner, null);
}