| /* |
| * 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.query.h2.twostep.messages; |
| |
| import java.nio.ByteBuffer; |
| import org.apache.ignite.cache.query.QueryCancelledException; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.apache.ignite.plugin.extensions.communication.Message; |
| import org.apache.ignite.plugin.extensions.communication.MessageReader; |
| import org.apache.ignite.plugin.extensions.communication.MessageWriter; |
| |
| /** |
| * Error message. |
| */ |
| public class GridQueryFailResponse implements Message { |
| /** General error failure type. */ |
| public static final byte GENERAL_ERROR = 0; |
| |
| /** Cancelled by originator failure type. */ |
| public static final byte CANCELLED_BY_ORIGINATOR = 1; |
| |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** */ |
| private long qryReqId; |
| |
| /** */ |
| private String errMsg; |
| |
| /** */ |
| private byte failCode; |
| |
| /** |
| * Default constructor. |
| */ |
| public GridQueryFailResponse() { |
| // No-op. |
| } |
| |
| /** |
| * @param qryReqId Query request ID. |
| * @param err Error. |
| */ |
| public GridQueryFailResponse(long qryReqId, Throwable err) { |
| this.qryReqId = qryReqId; |
| this.errMsg = err.getMessage(); |
| this.failCode = err instanceof QueryCancelledException ? CANCELLED_BY_ORIGINATOR : GENERAL_ERROR; |
| } |
| |
| /** |
| * @return Query request ID. |
| */ |
| public long queryRequestId() { |
| return qryReqId; |
| } |
| |
| /** |
| * @return Error. |
| */ |
| public String error() { |
| return errMsg; |
| } |
| |
| /** |
| * @return Fail code. |
| */ |
| public byte failCode() { |
| return failCode; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void onAckReceived() { |
| // No-op. |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(GridQueryFailResponse.class, this); |
| } |
| |
| /** {@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.writeString("errMsg", errMsg)) |
| return false; |
| |
| writer.incrementState(); |
| |
| case 1: |
| if (!writer.writeByte("failCode", failCode)) |
| return false; |
| |
| writer.incrementState(); |
| |
| case 2: |
| if (!writer.writeLong("qryReqId", qryReqId)) |
| 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: |
| errMsg = reader.readString("errMsg"); |
| |
| if (!reader.isLastRead()) |
| return false; |
| |
| reader.incrementState(); |
| |
| case 1: |
| failCode = reader.readByte("failCode"); |
| |
| if (!reader.isLastRead()) |
| return false; |
| |
| reader.incrementState(); |
| |
| case 2: |
| qryReqId = reader.readLong("qryReqId"); |
| |
| if (!reader.isLastRead()) |
| return false; |
| |
| reader.incrementState(); |
| |
| } |
| |
| return reader.afterMessageRead(GridQueryFailResponse.class); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public short directType() { |
| return 107; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public byte fieldsCount() { |
| return 3; |
| } |
| } |