Java Code Examples for org.apache.atlas.AtlasErrorCode#FAILED_TO_OBTAIN_TYPE_UPDATE_LOCK

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Example 1
Source File: AtlasTypeRegistry.java    From atlas with Apache License 2.0 5 votes vote down vote up 
AtlasTransientTypeRegistry lockTypeRegistryForUpdate(int lockMaxWaitTimeInSeconds) throws AtlasBaseException {
    LOG.debug("==> lockTypeRegistryForUpdate()");

    boolean alreadyLockedByCurrentThread = typeRegistryUpdateLock.isHeldByCurrentThread();

    if (!alreadyLockedByCurrentThread) {
        if (lockedByThread != null) {
            LOG.info("lockTypeRegistryForUpdate(): waiting for lock to be released by thread {}", lockedByThread);
        }
    } else {
        LOG.warn("lockTypeRegistryForUpdate(): already locked. currentLockCount={}",
                typeRegistryUpdateLock.getHoldCount());
    }

    try {
        boolean isLocked = typeRegistryUpdateLock.tryLock(lockMaxWaitTimeInSeconds, TimeUnit.SECONDS);

        if (!isLocked) {
            throw new AtlasBaseException(AtlasErrorCode.FAILED_TO_OBTAIN_TYPE_UPDATE_LOCK);
        }
    } catch (InterruptedException excp) {
        throw new AtlasBaseException(AtlasErrorCode.FAILED_TO_OBTAIN_TYPE_UPDATE_LOCK, excp);
    }

    if (!alreadyLockedByCurrentThread) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("lockTypeRegistryForUpdate(): wait over..got the lock");
        }

        typeRegistryUnderUpdate = new AtlasTransientTypeRegistry(typeRegistry);
        lockedByThread          = Thread.currentThread().getName();
    }

    LOG.debug("<== lockTypeRegistryForUpdate()");

    return typeRegistryUnderUpdate;
}
Example 2
Source File: AtlasTypeRegistry.java    From incubator-atlas with Apache License 2.0 5 votes vote down vote up 
AtlasTransientTypeRegistry lockTypeRegistryForUpdate(int lockMaxWaitTimeInSeconds) throws AtlasBaseException {
    LOG.debug("==> lockTypeRegistryForUpdate()");

    boolean alreadyLockedByCurrentThread = typeRegistryUpdateLock.isHeldByCurrentThread();

    if (!alreadyLockedByCurrentThread) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("lockTypeRegistryForUpdate(): waiting for lock to be released by thread {}", lockedByThread);
        }
    } else {
        LOG.warn("lockTypeRegistryForUpdate(): already locked. currentLockCount={}",
                typeRegistryUpdateLock.getHoldCount());
    }

    try {
        boolean isLocked = typeRegistryUpdateLock.tryLock(lockMaxWaitTimeInSeconds, TimeUnit.SECONDS);

        if (!isLocked) {
            throw new AtlasBaseException(AtlasErrorCode.FAILED_TO_OBTAIN_TYPE_UPDATE_LOCK);
        }
    } catch (InterruptedException excp) {
        throw new AtlasBaseException(AtlasErrorCode.FAILED_TO_OBTAIN_TYPE_UPDATE_LOCK, excp);
    }

    if (!alreadyLockedByCurrentThread) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("lockTypeRegistryForUpdate(): wait over..got the lock");
        }

        typeRegistryUnderUpdate = new AtlasTransientTypeRegistry(typeRegistry);
        lockedByThread          = Thread.currentThread().getName();
    }

    LOG.debug("<== lockTypeRegistryForUpdate()");

    return typeRegistryUnderUpdate;
}