jstorm-core/src/main/java/com/alibaba/jstorm/task/execute/spout/FailSpoutMsg.java

/**
 * 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 com.alibaba.jstorm.task.execute.spout;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import backtype.storm.spout.ISpout;

import com.alibaba.jstorm.client.spout.IFailValueSpout;
import com.alibaba.jstorm.task.TaskBaseMetric;
import com.alibaba.jstorm.task.comm.TupleInfo;

/**
 * Do the action after spout receive one failed tuple or sending tuple timeout
 * 
 * @author yannian/Longda
 * 
 */
public class FailSpoutMsg implements IAckMsg {
    private static Logger LOG = LoggerFactory.getLogger(FailSpoutMsg.class);
    private Object id;
    private ISpout spout;
    private TupleInfo tupleInfo;
    private TaskBaseMetric task_stats;
    private boolean isDebug = false;

    public FailSpoutMsg(Object id, ISpout _spout, TupleInfo _tupleInfo, TaskBaseMetric _task_stats, boolean _isDebug) {
        this.id = id;
        this.spout = _spout;
        this.tupleInfo = _tupleInfo;
        this.task_stats = _task_stats;
        this.isDebug = _isDebug;
    }

    public void run() {

        Object msg_id = tupleInfo.getMessageId();

        if (spout instanceof IFailValueSpout) {
            IFailValueSpout enhanceSpout = (IFailValueSpout) spout;
            enhanceSpout.fail(msg_id, tupleInfo.getValues());
        } else {
            spout.fail(msg_id);
        }

        task_stats.spout_failed_tuple(tupleInfo.getStream());

        if (isDebug) {
            LOG.info("Failed message rootId: {}, messageId:{} : {}", id, msg_id, tupleInfo.getValues().toString());
        }
    }

}