| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.ignite.internal.processors.platform.events; |
| |
| import org.apache.ignite.events.Event; |
| import org.apache.ignite.internal.GridKernalContext; |
| import org.apache.ignite.internal.binary.BinaryRawWriterEx; |
| import org.apache.ignite.internal.processors.platform.PlatformContext; |
| import org.apache.ignite.internal.processors.platform.PlatformEventFilterListener; |
| import org.apache.ignite.internal.processors.platform.memory.PlatformMemory; |
| import org.apache.ignite.internal.processors.platform.memory.PlatformOutputStream; |
| import org.apache.ignite.internal.processors.platform.utils.PlatformUtils; |
| |
| import java.io.Externalizable; |
| import java.io.IOException; |
| import java.io.ObjectInput; |
| import java.io.ObjectOutput; |
| import java.util.UUID; |
| |
| /** |
| * Platform event filter. Delegates apply to native platform. |
| */ |
| public class PlatformEventFilterListenerImpl implements PlatformEventFilterListener, Externalizable |
| { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** */ |
| private Object pred; |
| |
| /** Event types. */ |
| private int[] types; |
| |
| /** */ |
| private transient long hnd; |
| |
| /** */ |
| private transient PlatformContext ctx; |
| |
| /** |
| * {@link Externalizable} support. |
| */ |
| public PlatformEventFilterListenerImpl() { |
| // No-op. |
| } |
| |
| /** |
| * Constructor. |
| * |
| * @param hnd Handle in the native platform. |
| * @param ctx Context. |
| */ |
| public PlatformEventFilterListenerImpl(long hnd, PlatformContext ctx) { |
| assert ctx != null; |
| assert hnd != 0; |
| |
| this.hnd = hnd; |
| this.ctx = ctx; |
| |
| pred = null; |
| types = null; |
| } |
| |
| /** |
| * Constructor. |
| * |
| * @param pred .Net binary predicate. |
| */ |
| public PlatformEventFilterListenerImpl(Object pred, final int... types) { |
| assert pred != null; |
| |
| this.pred = pred; |
| this.types = types; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean apply(Event evt) { |
| return apply0(null, evt); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean apply(UUID uuid, Event evt) { |
| return apply0(uuid, evt); |
| } |
| |
| /** |
| * Apply impl. |
| * @param uuid Node if. |
| * @param evt Event. |
| * @return Result. |
| */ |
| private boolean apply0(final UUID uuid, final Event evt) { |
| if (!ctx.isEventTypeSupported(evt.type())) |
| return false; |
| |
| if (types != null) { |
| boolean match = false; |
| |
| for (int type : types) { |
| if (type == evt.type()) { |
| match = true; |
| break; |
| } |
| } |
| |
| if (!match) |
| return false; |
| } |
| |
| try (PlatformMemory mem = ctx.memory().allocate()) { |
| PlatformOutputStream out = mem.output(); |
| |
| BinaryRawWriterEx writer = ctx.writer(out); |
| |
| ctx.writeEvent(writer, evt); |
| |
| writer.writeUuid(uuid); |
| |
| out.synchronize(); |
| |
| int res = ctx.gateway().eventFilterApply(hnd, mem.pointer()); |
| |
| return res != 0; |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void onClose() { |
| ctx.gateway().eventFilterDestroy(hnd); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void initialize(GridKernalContext gridCtx) { |
| ctx = PlatformUtils.platformContext(gridCtx.grid()); |
| |
| try (PlatformMemory mem = ctx.memory().allocate()) { |
| PlatformOutputStream out = mem.output(); |
| |
| BinaryRawWriterEx writer = ctx.writer(out); |
| |
| writer.writeObjectDetached(pred); |
| |
| out.synchronize(); |
| |
| hnd = ctx.gateway().eventFilterCreate(mem.pointer()); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean equals(Object o) { |
| return this == o || o != null && o instanceof PlatformEventFilterListenerImpl && |
| hnd == ((PlatformEventFilterListenerImpl)o).hnd; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public int hashCode() { |
| return (int)(hnd ^ (hnd >>> 32)); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void writeExternal(ObjectOutput out) throws IOException { |
| out.writeObject(pred); |
| out.writeObject(types); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { |
| pred = in.readObject(); |
| types = (int[])in.readObject(); |
| } |
| } |