Package org.modeshape.jcr.cache.change

Examples of org.modeshape.jcr.cache.change.ChangeSet

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        journal().shutdown();
    }

    protected void insertTestRecords() throws InterruptedException {
        // p1 has 4 changesets (sleep for 1 ms between them to make sure the timestamps are different
        ChangeSet process1Changes1 = TestChangeSet.create("j1", 5);
        journal().notify(process1Changes1);

        ChangeSet process1Changes2 = TestChangeSet.create("j1", 1);
        journal().notify(process1Changes2);

        ChangeSet process1Changes3 = TestChangeSet.create("j1", 1);
        journal().notify(process1Changes3);

        ChangeSet process1Changes4 = TestChangeSet.create("j1", 1);
        journal().notify(process1Changes4);
        timestamp1 = new org.joda.time.DateTime(process1Changes4.getTimestamp().getMilliseconds());

        // p2 has 2 changesets
        ChangeSet process2Changes1 = TestChangeSet.create("j2", 1);
        journal().notify(process2Changes1);

        ChangeSet process2Changes2 = TestChangeSet.create("j2", 1);
        journal().notify(process2Changes2);
        timestamp2 = new org.joda.time.DateTime(process2Changes2.getTimestamp().getMilliseconds());

        // p3 has 2 changesets
        ChangeSet process3Changes1 = TestChangeSet.create("j3", 2);
        journal().notify(process3Changes1);

        ChangeSet process3Changes2 = TestChangeSet.create("j3", 2);
        journal().notify(process3Changes2);
        timestamp3 = new org.joda.time.DateTime(process3Changes2.getTimestamp().getMilliseconds());

        ChangeSet process3Changes3 = TestChangeSet.create("j3", 0);
        journal().notify(process3Changes3);
    }
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    protected void save( PreSave preSaveOperation ) {
        if (!this.hasChanges()) {
            return;
        }

        ChangeSet events = null;
        Lock lock = this.lock.writeLock();
        Transaction txn = null;
        try {
            lock.lock();

            // Before we start the transaction, apply the pre-save operations to the new and changed nodes ...
            runPreSaveBeforeTransaction(preSaveOperation);

            final int numNodes = this.changedNodes.size();

            int repeat = txns.isCurrentlyInTransaction() ? 1 : MAX_REPEAT_FOR_LOCK_ACQUISITION_TIMEOUT;
            while (--repeat >= 0) {
                try {
                    // Start a ModeShape transaction (which may be a part of a larger JTA transaction) ...
                    txn = txns.begin();
                    assert txn != null;

                    // Lock the nodes in Infinispan
                    WorkspaceCache persistedCache = lockNodes(changedNodesInOrder);

                    // process after locking
                    runPreSaveAfterLocking(preSaveOperation, persistedCache);

                    // Now persist the changes ...
                    logChangesBeingSaved(this.changedNodesInOrder, this.changedNodes, null, null);
                    events = persistChanges(this.changedNodesInOrder, persistedCache);

                    // If there are any binary changes, add a function which will update the binary store
                    if (events.hasBinaryChanges()) {
                        txn.uponCommit(binaryUsageUpdateFunction(events.usedBinaries(), events.unusedBinaries()));
                    }

                    LOGGER.debug("Altered {0} node(s)", numNodes);

                    // Commit the transaction ...
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        // Try getting locks on both sessions ...
        final WritableSessionCache that = (WritableSessionCache)other.unwrap();
        Lock thisLock = this.lock.writeLock();
        Lock thatLock = that.lock.writeLock();

        ChangeSet events1 = null;
        ChangeSet events2 = null;
        Transaction txn = null;
        try {
            thisLock.lock();
            thatLock.lock();

            // Before we start the transaction, apply the pre-save operations to the new and changed nodes ...
            runPreSaveBeforeTransaction(preSaveOperation);

            final int numNodes = this.changedNodes.size() + that.changedNodes.size();

            int repeat = txns.isCurrentlyInTransaction() ? 1 : MAX_REPEAT_FOR_LOCK_ACQUISITION_TIMEOUT;
            while (--repeat >= 0) {
                try {
                    // Start a ModeShape transaction (which may be a part of a larger JTA transaction) ...
                    txn = txns.begin();
                    assert txn != null;

                    // Get a monitor via the transaction ...
                    try {
                        // Lock the nodes in Infinispan
                        WorkspaceCache thisPersistedCache = lockNodes(this.changedNodesInOrder);
                        WorkspaceCache thatPersistedCache = that.lockNodes(that.changedNodesInOrder);

                        // process after locking
                        runPreSaveAfterLocking(preSaveOperation, thisPersistedCache);

                        // Now persist the changes ...
                        logChangesBeingSaved(this.changedNodesInOrder, this.changedNodes, that.changedNodesInOrder,
                                             that.changedNodes);
                        events1 = persistChanges(this.changedNodesInOrder, thisPersistedCache);
                        // If there are any binary changes, add a function which will update the binary store
                        if (events1.hasBinaryChanges()) {
                            txn.uponCommit(binaryUsageUpdateFunction(events1.usedBinaries(), events1.unusedBinaries()));
                        }
                        events2 = that.persistChanges(that.changedNodesInOrder, thatPersistedCache);
                        if (events2.hasBinaryChanges()) {
                            txn.uponCommit(binaryUsageUpdateFunction(events2.usedBinaries(), events2.unusedBinaries()));
                        }
                    } catch (org.infinispan.util.concurrent.TimeoutException e) {
                        txn.rollback();
                        if (repeat <= 0) throw new TimeoutException(e.getMessage(), e);
                        --repeat;
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        // Try getting locks on both sessions ...
        final WritableSessionCache that = (WritableSessionCache)other.unwrap();
        Lock thisLock = this.lock.writeLock();
        Lock thatLock = that.lock.writeLock();

        ChangeSet events1 = null;
        ChangeSet events2 = null;
        Transaction txn = null;
        try {
            thisLock.lock();
            thatLock.lock();

            // Before we start the transaction, apply the pre-save operations to the new and changed nodes below the path ...
            final List<NodeKey> savedNodesInOrder = new LinkedList<NodeKey>();

            // Before we start the transaction, apply the pre-save operations to the new and changed nodes ...
            if (preSaveOperation != null) {
                SaveContext saveContext = new BasicSaveContext(context());
                for (MutableCachedNode node : this.changedNodes.values()) {
                    if (node == REMOVED || !toBeSaved.contains(node.getKey())) {
                        continue;
                    }
                    checkNodeNotRemovedByAnotherTransaction(node);
                    preSaveOperation.process(node, saveContext);
                    savedNodesInOrder.add(node.getKey());
                }
            }

            final int numNodes = savedNodesInOrder.size() + that.changedNodesInOrder.size();

            int repeat = txns.isCurrentlyInTransaction() ? 1 : MAX_REPEAT_FOR_LOCK_ACQUISITION_TIMEOUT;
            while (--repeat >= 0) {
                try {
                    // Start a ModeShape transaction (which may be a part of a larger JTA transaction) ...
                    txn = txns.begin();
                    assert txn != null;

                    try {
                        // Lock the nodes in Infinispan
                        WorkspaceCache thisPersistedCache = lockNodes(savedNodesInOrder);
                        WorkspaceCache thatPersistedCache = that.lockNodes(that.changedNodesInOrder);

                        // process after locking
                        // Before we start the transaction, apply the pre-save operations to the new and changed nodes ...
                        if (preSaveOperation != null) {
                            SaveContext saveContext = new BasicSaveContext(context());
                            for (MutableCachedNode node : this.changedNodes.values()) {
                                if (node == REMOVED || !toBeSaved.contains(node.getKey())) {
                                    continue;
                                }
                                preSaveOperation.processAfterLocking(node, saveContext, thisPersistedCache);
                            }
                        }

                        // Now persist the changes ...
                        logChangesBeingSaved(savedNodesInOrder, this.changedNodes, that.changedNodesInOrder, that.changedNodes);
                        events1 = persistChanges(savedNodesInOrder, thisPersistedCache);
                        // If there are any binary changes, add a function which will update the binary store
                        if (events1.hasBinaryChanges()) {
                            txn.uponCommit(binaryUsageUpdateFunction(events1.usedBinaries(), events1.unusedBinaries()));
                        }
                        events2 = that.persistChanges(that.changedNodesInOrder, thatPersistedCache);
                        if (events2.hasBinaryChanges()) {
                            txn.uponCommit(binaryUsageUpdateFunction(events2.usedBinaries(), events2.unusedBinaries()));
                        }
                    } catch (org.infinispan.util.concurrent.TimeoutException e) {
                        txn.rollback();
                        if (repeat <= 0) throw new TimeoutException(e.getMessage(), e);
                        --repeat;
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        listener1.expectChangeSet(1);
        listener2.expectChangeSet(0); // shutdown
        listener3.expectChangeSet(0); // shutdown

        // Send changeSet to one of the buses ...
        ChangeSet changeSet = new TestChangeSet("ws1");
        bus1.notify(changeSet);

        // Wait for the observers to be notified ...
        listener1.assertExpectedEventsCount();
        listener2.assertExpectedEventsCount();
        listener3.assertExpectedEventsCount();

        // Now verify that all of the observers received the notification ...
        assertThat(listener1.getObservedChangeSet().size(), is(1));
        assertThat(listener2.getObservedChangeSet().size(), is(0));
        assertThat(listener3.getObservedChangeSet().size(), is(0));
        assertThat(listener1.getObservedChangeSet().get(0), is(changeSet));

        // ------------------------------------
        // Create a second bus ...
        // ------------------------------------
        ClusteredChangeBus bus2 = startNewBus();
        bus2.register(listener2);

        // ------------------------------------
        // Send a change from the first bus ...
        // ------------------------------------

        // Set the observers to expect one event ...
        listener1.expectChangeSet(1);
        listener2.expectChangeSet(1);
        listener3.expectChangeSet(0); // shutdown

        // Send changeSet to one of the buses ...
        changeSet = new TestChangeSet("ws1");
        bus1.notify(changeSet);

        // Wait for the observers to be notified ...
        listener1.assertExpectedEventsCount();
        listener2.assertExpectedEventsCount();
        listener3.assertExpectedEventsCount();

        // Now verify that all of the observers received the notification ...
        assertThat(listener1.getObservedChangeSet().size(), is(1));
        assertThat(listener2.getObservedChangeSet().size(), is(1));
        assertThat(listener3.getObservedChangeSet().size(), is(0));
        assertThat(listener1.getObservedChangeSet().get(0), is(changeSet));
        assertThat(listener2.getObservedChangeSet().get(0), is(changeSet));

        // ------------------------------------
        // Send a change from the second bus ...
        // ------------------------------------

        // Set the observers to expect one event ...
        listener1.expectChangeSet(1);
        listener2.expectChangeSet(1);
        listener3.expectChangeSet(0); // shutdown

        // Send changeSet to one of the buses ...
        changeSet = new TestChangeSet("ws2");
        bus2.notify(changeSet);

        // Wait for the observers to be notified ...
        listener1.assertExpectedEventsCount();
        listener2.assertExpectedEventsCount();
        listener3.assertExpectedEventsCount();

        // Now verify that all of the observers received the notification ...
        assertThat(listener1.getObservedChangeSet().size(), is(1));
        assertThat(listener2.getObservedChangeSet().size(), is(1));
        assertThat(listener3.getObservedChangeSet().size(), is(0));
        assertThat(listener1.getObservedChangeSet().get(0), is(changeSet));
        assertThat(listener2.getObservedChangeSet().get(0), is(changeSet));

        // ------------------------------------
        // Create a third bus ...
        // ------------------------------------
        ClusteredChangeBus bus3 = startNewBus();
        bus3.register(listener3);
        // ------------------------------------
        // Send a change from the first bus ...
        // ------------------------------------

        // Set the observers to expect one event ...
        listener1.expectChangeSet(1);
        listener2.expectChangeSet(1);
        listener3.expectChangeSet(1);

        // Send changeSet to one of the buses ...
        changeSet = new TestChangeSet("ws1");
        bus1.notify(changeSet);

        // Wait for the observers to be notified ...
        listener1.assertExpectedEventsCount();
        listener2.assertExpectedEventsCount();
        listener3.assertExpectedEventsCount();

        // Now verify that all of the observers received the notification ...
        assertThat(listener1.getObservedChangeSet().size(), is(1));
        assertThat(listener2.getObservedChangeSet().size(), is(1));
        assertThat(listener3.getObservedChangeSet().size(), is(1));
        assertThat(listener1.getObservedChangeSet().get(0), is(changeSet));
        assertThat(listener2.getObservedChangeSet().get(0), is(changeSet));
        assertThat(listener3.getObservedChangeSet().get(0), is(changeSet));

        // -------------------------------------
        // Send a change from the second bus ...
        // -------------------------------------

        // Set the observers to expect one event ...
        listener1.expectChangeSet(1);
        listener2.expectChangeSet(1);
        listener3.expectChangeSet(1);

        // Send changeSet to one of the buses ...
        ChangeSet changeSet2 = new TestChangeSet("ws2");
        bus2.notify(changeSet2);

        // Wait for the observers to be notified ...
        listener1.assertExpectedEventsCount();
        listener2.assertExpectedEventsCount();
        listener3.assertExpectedEventsCount();

        // Now verify that all of the observers received the notification ...
        assertThat(listener1.getObservedChangeSet().size(), is(1));
        assertThat(listener2.getObservedChangeSet().size(), is(1));
        assertThat(listener3.getObservedChangeSet().size(), is(1));
        assertThat(listener1.getObservedChangeSet().get(0), is(changeSet2));
        assertThat(listener2.getObservedChangeSet().get(0), is(changeSet2));
        assertThat(listener3.getObservedChangeSet().get(0), is(changeSet2));

        // ------------------------------------
        // Send a change from the third bus ...
        // ------------------------------------

        // Set the observers to expect one event ...
        listener1.expectChangeSet(1);
        listener2.expectChangeSet(1);
        listener3.expectChangeSet(1);

        // Send changeSet to one of the buses ...
        ChangeSet changeSet3 = new TestChangeSet("ws3");
        bus3.notify(changeSet3);

        // Wait for the observers to be notified ...
        listener1.assertExpectedEventsCount();
        listener2.assertExpectedEventsCount();
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Related Classes of org.modeshape.jcr.cache.change.ChangeSet

  • org.modeshape.jcr.bus.ClusteredChangeBusTest
  • org.modeshape.jcr.cache.document.WritableSessionCache
  • org.modeshape.jcr.journal.LocalJournalTest
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