Examples with Lock org.jumpmind.symmetric.model.Lock used on opensource projects

Example 1 with Lock

use of org.jumpmind.symmetric.model.Lock in project symmetric-ds by JumpMind.

the class FileSyncService method trackChangesFastScan.

protected void trackChangesFastScan(ProcessInfo processInfo, boolean useCrc) {
    boolean isLocked = engine.getClusterService().lock(ClusterConstants.FILE_SYNC_SCAN);
    Lock lock = engine.getClusterService().findLocks().get(ClusterConstants.FILE_SYNC_SCAN);
    log.debug("File tracker range of " + lock.getLastLockTime() + " to " + lock.getLockTime() + ", isLocked=" + isLocked);
    int maxRowsBeforeCommit = engine.getParameterService().getInt(ParameterConstants.DATA_LOADER_MAX_ROWS_BEFORE_COMMIT);
    try {
        List<FileTriggerRouter> fileTriggerRouters = getFileTriggerRoutersForCurrentNode();
        for (final FileTriggerRouter fileTriggerRouter : fileTriggerRouters) {
            if (fileTriggerRouter.isEnabled()) {
                FileAlterationObserver observer = new FileAlterationObserver(fileTriggerRouter.getFileTrigger().getBaseDir(), fileTriggerRouter.getFileTrigger().createIOFileFilter());
                FileTriggerFileModifiedListener listener = new FileTriggerFileModifiedListener(fileTriggerRouter, lock.getLastLockTime(), lock.getLockTime(), processInfo, useCrc, new FileModifiedCallback(maxRowsBeforeCommit) {

                    public void commit(DirectorySnapshot dirSnapshot) {
                        saveDirectorySnapshot(fileTriggerRouter, dirSnapshot);
                    }

                    public DirectorySnapshot getLastDirectorySnapshot(String relativeDir) {
                        return getDirectorySnapshot(fileTriggerRouter, relativeDir);
                    }
                }, engine);
                observer.addListener(listener);
                observer.checkAndNotify();
            }
        }
        engine.getClusterService().unlock(ClusterConstants.FILE_SYNC_SCAN);
    } catch (Exception ex) {
        log.error("Failed to track changes", ex);
    }
}

Example 2 with Lock

use of org.jumpmind.symmetric.model.Lock in project symmetric-ds by JumpMind.

the class ClusterService method unlockExclusive.

protected boolean unlockExclusive(final String action) {
    if (isClusteringEnabled()) {
        return sqlTemplate.update(getSql("releaseExclusiveLockSql"), new Object[] { action, TYPE_EXCLUSIVE }) == 1;
    } else {
        Lock lock = lockCache.get(action);
        if (lock != null) {
            synchronized (lock) {
                if (lock.getLockType().equals(TYPE_EXCLUSIVE)) {
                    lock.setLastLockingServerId(lock.getLockingServerId());
                    lock.setLockingServerId(null);
                    lock.setLastLockTime(lock.getLockTime());
                    lock.setLockTime(null);
                    return true;
                }
            }
        }
    }
    return false;
}

Example 3 with Lock

use of org.jumpmind.symmetric.model.Lock in project symmetric-ds by JumpMind.

the class ClusterService method lockShared.

protected boolean lockShared(final String action) {
    final Date timeout = DateUtils.addMilliseconds(new Date(), (int) -parameterService.getLong(ParameterConstants.LOCK_TIMEOUT_MS));
    if (isClusteringEnabled()) {
        return sqlTemplate.update(getSql("acquireSharedLockSql"), new Object[] { TYPE_SHARED, getServerId(), new Date(), action, TYPE_SHARED, timeout }) == 1;
    } else {
        Lock lock = lockCache.get(action);
        if (lock != null) {
            synchronized (lock) {
                if ((lock.getLockType().equals(TYPE_SHARED) || lock.getLockTime() == null || lock.getLockTime().before(timeout)) && (lock.isSharedEnable() || lock.getSharedCount() == 0)) {
                    lock.setLockType(TYPE_SHARED);
                    lock.setLockingServerId(getServerId());
                    lock.setLockTime(new Date());
                    if (lock.getSharedCount() == 0) {
                        lock.setSharedEnable(true);
                    }
                    lock.setSharedCount(lock.getSharedCount() + 1);
                    return true;
                }
            }
        }
    }
    return false;
}

Example 4 with Lock

use of org.jumpmind.symmetric.model.Lock in project symmetric-ds by JumpMind.

the class ClusterService method unlockCluster.

protected boolean unlockCluster(String action, String serverId) {
    if (isClusteringEnabled()) {
        return sqlTemplate.update(getSql("releaseClusterLockSql"), new Object[] { action, TYPE_CLUSTER, serverId }) > 0;
    } else {
        Lock lock = lockCache.get(action);
        if (lock != null) {
            synchronized (lock) {
                if (lock.getLockType().equals(TYPE_CLUSTER) && serverId.equals(lock.getLockingServerId())) {
                    lock.setLastLockingServerId(lock.getLockingServerId());
                    lock.setLockingServerId(null);
                    lock.setLastLockTime(lock.getLockTime());
                    lock.setLockTime(null);
                    return true;
                }
            }
        }
    }
    return false;
}

Example 5 with Lock

use of org.jumpmind.symmetric.model.Lock in project symmetric-ds by JumpMind.

the class ClusterService method unlockShared.

protected boolean unlockShared(final String action) {
    if (isClusteringEnabled()) {
        return sqlTemplate.update(getSql("releaseSharedLockSql"), new Object[] { action, TYPE_SHARED }) == 1;
    } else {
        Lock lock = lockCache.get(action);
        if (lock != null) {
            synchronized (lock) {
                if (lock.getLockType().equals(TYPE_SHARED)) {
                    lock.setLastLockTime(lock.getLockTime());
                    lock.setLastLockingServerId(lock.getLockingServerId());
                    if (lock.getSharedCount() == 1) {
                        lock.setSharedEnable(false);
                        lock.setLockingServerId(null);
                        lock.setLockTime(null);
                    }
                    if (lock.getSharedCount() > 1) {
                        lock.setSharedCount(lock.getSharedCount() - 1);
                    } else {
                        lock.setSharedCount(0);
                    }
                    return true;
                }
            }
        }
    }
    return false;
}