Examples with DistributionRegionSyncer org.bboxdb.distribution.region.DistributionRegionSyncer used on opensource projects

Example 11 with DistributionRegionSyncer

use of org.bboxdb.distribution.region.DistributionRegionSyncer in project bboxdb by jnidzwetzki.

the class TestRegionSyncer method testEventTypes.

@Test(timeout = 10000)
public void testEventTypes() throws InterruptedException, ZookeeperException {
    final DistributionRegionSyncer distributionRegionSyncer = buildSyncer();
    final DistributionRegion root = distributionRegionSyncer.getRootNode();
    // Root node is changed on add and remove children
    final CountDownLatch changedLatch = new CountDownLatch(2);
    final DistributionRegionCallback rootNodeChangedCallback = (e, r) -> {
        if (e == DistributionRegionEvent.CHANGED && r.equals(root)) {
            changedLatch.countDown();
        }
    };
    distributionRegionSyncer.registerCallback(rootNodeChangedCallback);
    // Two new children will be added
    final CountDownLatch addedLatch = new CountDownLatch(2);
    final DistributionRegionCallback adddedCallback = (e, r) -> {
        if (e == DistributionRegionEvent.ADDED && !r.equals(root)) {
            addedLatch.countDown();
        }
    };
    distributionRegionSyncer.registerCallback(adddedCallback);
    // Two children will be removed
    final CountDownLatch removedLatch = new CountDownLatch(2);
    final DistributionRegionCallback removedCallback = (e, r) -> {
        if (e == DistributionRegionEvent.REMOVED && !r.equals(root)) {
            removedLatch.countDown();
        }
    };
    distributionRegionSyncer.registerCallback(removedCallback);
    // Mutate tree
    createSplittedRoot(distributionRegionSyncer, root);
    // Wait
    System.out.println("=== Wait for added latch");
    addedLatch.await();
    distributionRegionAdapter.deleteChild(root.getChildNumber(0));
    distributionRegionAdapter.deleteChild(root.getChildNumber(1));
    System.out.println("=== Wait for removed latch");
    removedLatch.await();
    System.out.println("=== Wait for changed latch");
    changedLatch.await();
    distributionRegionSyncer.unregisterCallback(rootNodeChangedCallback);
    distributionRegionSyncer.unregisterCallback(adddedCallback);
    distributionRegionSyncer.unregisterCallback(removedCallback);
}

Example 12 with DistributionRegionSyncer

use of org.bboxdb.distribution.region.DistributionRegionSyncer in project bboxdb by jnidzwetzki.

the class AbstractSpacePartitioner method getRootNode.

@Override
public DistributionRegion getRootNode() throws BBoxDBException {
    synchronized (this) {
        if (distributionRegionSyncer == null) {
            this.distributionRegionSyncer = new DistributionRegionSyncer(spacePartitionerContext);
            spacePartitionerContext.getDistributionRegionMapper().clear();
        }
    }
    if (!active) {
        throw new BBoxDBException("Get root node on a non active space partitoner called");
    }
    return distributionRegionSyncer.getRootNode();
}