Examples with Store co.paralleluniverse.galaxy.quasar.Store used on opensource projects

Example 1 with Store

use of co.paralleluniverse.galaxy.quasar.Store in project quasar by puniverse.

the class GlxGlobalRegistry method getOrRegisterActor0.

private CacheEntry getOrRegisterActor0(final String rootName, Callable<? extends ActorRef<?>> actorFactory) throws SuspendExecution, RuntimeException {
    final Store store = grid.store();
    final StoreTransaction txn = store.beginTransaction();
    try {
        try {
            final long root = store.getRoot(rootName, txn);
            final ActorRef<?> actor;
            final byte[] buf = store.getx(root, txn);
            long version = store.getVersion(root);
            if (buf == null || buf.length == 0) {
                try {
                    actor = actorFactory.call();
                } catch (Exception e) {
                    throw new RuntimeException("Exception while creating actor", e);
                }
                LOG.debug("Store returned null for root {}. Registering actor {} at rootId  {}", rootName, actor, root);
                store.set(root, Serialization.getInstance().write(actor), txn);
                version = store.getVersion(root);
            } else
                actor = deserActor(rootName, buf);
            store.commit(txn);
            return new CacheEntry(actor, root, version);
        } catch (TimeoutException e) {
            LOG.error("Getting actor {} failed due to timeout", rootName);
            store.rollback(txn);
            store.abort(txn);
            throw new RuntimeException("Actor discovery/registration failed");
        }
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
}

Example 2 with Store

use of co.paralleluniverse.galaxy.quasar.Store in project quasar by puniverse.

the class GlxGlobalRegistry method getActor0.

private CacheEntry getActor0(final String rootName, long timeout, TimeUnit unit) throws SuspendExecution, RuntimeException, InterruptedException {
    final long deadline = unit != null ? System.nanoTime() + unit.toNanos(timeout) : 0;
    final Store store = grid.store();
    final long root;
    final ReentrantLock lck0 = new ReentrantLock();
    final Condition cond = lck0.newCondition();
    boolean listening = false;
    final StoreTransaction txn = store.beginTransaction();
    try {
        root = store.getRoot(rootName, txn);
        final CacheListener listener = new AbstractCacheListener() {

            @Override
            public void evicted(Cache cache, long id) {
                invalidated(cache, id);
            }

            @Override
            public void invalidated(Cache cache, long id) {
                grid.getDelegate().store().getAsync(id);
            }

            @Override
            public void received(Cache cache, long id, long version, ByteBuffer data) {
                if (data != null && data.remaining() > 0) {
                    LOG.debug("Received root {} ({})", rootName, Long.toHexString(id));
                    lck0.lock();
                    try {
                        cond.signalAll();
                    } finally {
                        lck0.unlock();
                    }
                    store.setListener(root, null);
                }
            }
        };
        listening = (store.setListenerIfAbsent(root, listener) == listener);
        store.commit(txn);
    } catch (TimeoutException e) {
        LOG.error("Getting actor {} failed due to timeout", rootName);
        store.rollback(txn);
        store.abort(txn);
        throw new RuntimeException("Actor discovery failed");
    }
    try {
        byte[] buf = store.gets(root, null);
        long version = store.getVersion(root);
        store.release(root);
        if (listening) {
            lck0.lock();
            try {
                while (buf == null || buf.length == 0) {
                    LOG.debug("Store returned null for root {}", rootName);
                    if (deadline > 0) {
                        final long now = System.nanoTime();
                        if (now > deadline)
                            // throw new java.util.concurrent.TimeoutException();
                            return null;
                        cond.await(deadline - now, TimeUnit.NANOSECONDS);
                    } else
                        cond.await();
                    buf = store.gets(root, null);
                    version = store.getVersion(root);
                    store.release(root);
                }
            } finally {
                lck0.unlock();
            }
        } else
            assert buf != null && buf.length > 0;
        final ActorRef<?> actor = deserActor(rootName, buf);
        return new CacheEntry(actor, root, version);
    } catch (TimeoutException e) {
        LOG.error("Getting actor {} failed due to timeout", rootName);
        throw new RuntimeException("Actor discovery failed");
    }
}

Example 3 with Store

use of co.paralleluniverse.galaxy.quasar.Store in project quasar by puniverse.

the class GlxGlobalRegistry method register.

@Override
public <Message> void register(Actor<Message, ?> actor, ActorRef<Message> actorRef) throws SuspendExecution {
    final String rootName = actorRef.getName();
    LOG.info("Registering actor {} at root {}", actorRef, rootName);
    final Store store = grid.store();
    StoreTransaction txn = store.beginTransaction();
    lock.lock();
    try {
        try {
            Object globalId = getGlobalId(actor);
            final long root = store.getRoot(rootName, globalId != null ? (Long) globalId : -1, txn);
            // assert globalId == null || ((Long) globalId) == root; -- it's OK to replace the actor's globalId -- until it's too late
            setGlobalId(actor, root);
            store.getx(root, txn);
            store.set(root, Serialization.getInstance().write(actorRef), txn);
            final long version = store.getVersion(root);
            LOG.debug("Registered actor {} at rootId  {}", actorRef, Long.toHexString(root));
            store.commit(txn);
            // <--- comment out to test "distribution" on a single node
            updateCache(rootName, new CacheEntry(actorRef, root, version));
        } catch (TimeoutException e) {
            LOG.error("Registering actor {} at root {} failed due to timeout", actorRef, rootName);
            store.rollback(txn);
            store.abort(txn);
            throw new RuntimeException("Actor registration failed");
        }
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    } finally {
        lock.unlock();
    }
}

Example 4 with Store

use of co.paralleluniverse.galaxy.quasar.Store in project quasar by puniverse.

the class GlxGlobalRegistry method unregister0.

private void unregister0(ActorRef<?> actor) throws SuspendExecution {
    final String rootName = actor.getName();
    LOG.info("Unregistering {}", rootName);
    final Store store = grid.store();
    StoreTransaction txn = store.beginTransaction();
    try {
        try {
            final long root = store.getRoot(rootName, txn);
            store.set(root, (byte[]) null, txn);
            store.commit(txn);
        } catch (TimeoutException e) {
            LOG.error("Unregistering {} failed due to timeout", rootName);
            store.rollback(txn);
            store.abort(txn);
            throw new RuntimeException("Actor unregistration failed");
        }
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
}

Example 5 with Store

use of co.paralleluniverse.galaxy.quasar.Store in project quasar by puniverse.

the class GlxGlobalRegistry method tryGetActor0.

private CacheEntry tryGetActor0(final String rootName) throws SuspendExecution, RuntimeException {
    final Store store = grid.store();
    final StoreTransaction txn = store.beginTransaction();
    try {
        try {
            final long root = store.getRoot(rootName, txn);
            final byte[] buf = store.gets(root, txn);
            if (buf == null) {
                LOG.debug("Store returned null for root {}", rootName);
                return null;
            }
            final long version = store.getVersion(root);
            store.commit(txn);
            LOG.debug("Store returned a buffer ({} bytes) for root {}", buf.length, rootName);
            if (buf.length == 0)
                // TODO: Galaxy should return null
                return null;
            ActorRef<?> actor = deserActor(rootName, buf);
            return new CacheEntry(actor, root, version);
        } catch (TimeoutException e) {
            LOG.error("Getting actor {} failed due to timeout", rootName);
            store.rollback(txn);
            store.abort(txn);
            throw new RuntimeException("Actor discovery failed");
        }
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
}