| /* |
| * 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; |
| |
| import java.io.Externalizable; |
| import java.nio.ByteBuffer; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.apache.ignite.lang.IgniteUuid; |
| import org.apache.ignite.plugin.extensions.communication.Message; |
| import org.apache.ignite.plugin.extensions.communication.MessageReader; |
| import org.apache.ignite.plugin.extensions.communication.MessageWriter; |
| |
| /** |
| * Request for cancelling tasks. |
| */ |
| public class GridTaskCancelRequest implements Message { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** */ |
| private IgniteUuid sesId; |
| |
| /** |
| * No-op constructor to support {@link Externalizable} interface. |
| * This constructor is not meant to be used for other purposes. |
| */ |
| public GridTaskCancelRequest() { |
| // No-op. |
| } |
| |
| /** |
| * @param sesId Task session ID. |
| */ |
| public GridTaskCancelRequest(IgniteUuid sesId) { |
| assert sesId != null; |
| |
| this.sesId = sesId; |
| } |
| |
| /** |
| * Gets execution ID of task to be cancelled. |
| * |
| * @return Execution ID of task to be cancelled. |
| */ |
| public IgniteUuid sessionId() { |
| return sesId; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void onAckReceived() { |
| // No-op. |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean writeTo(ByteBuffer buf, MessageWriter writer) { |
| writer.setBuffer(buf); |
| |
| if (!writer.isHeaderWritten()) { |
| if (!writer.writeHeader(directType(), fieldsCount())) |
| return false; |
| |
| writer.onHeaderWritten(); |
| } |
| |
| switch (writer.state()) { |
| case 0: |
| if (!writer.writeIgniteUuid("sesId", sesId)) |
| return false; |
| |
| writer.incrementState(); |
| |
| } |
| |
| return true; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean readFrom(ByteBuffer buf, MessageReader reader) { |
| reader.setBuffer(buf); |
| |
| if (!reader.beforeMessageRead()) |
| return false; |
| |
| switch (reader.state()) { |
| case 0: |
| sesId = reader.readIgniteUuid("sesId"); |
| |
| if (!reader.isLastRead()) |
| return false; |
| |
| reader.incrementState(); |
| |
| } |
| |
| return reader.afterMessageRead(GridTaskCancelRequest.class); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public short directType() { |
| return 5; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public byte fieldsCount() { |
| return 1; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(GridTaskCancelRequest.class, this); |
| } |
| } |