/**
 * 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 com.alibaba.jstorm.daemon.worker.JStormDebugger;
import com.alibaba.jstorm.metric.JStormMetrics;
import java.util.List;

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

import backtype.storm.spout.ISpout;
import backtype.storm.tuple.Tuple;
import backtype.storm.tuple.TupleExt;

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

/**
 * Called after spout receives an ack tuple
 *
 * @author yannian/Longda
 */
public class AckSpoutMsg implements IAckMsg {
    private static Logger LOG = LoggerFactory.getLogger(AckSpoutMsg.class);

    private Object id;
    private ISpout spout;
    private Tuple tuple;
    private TupleInfo tupleInfo;
    private Object msgId;
    private String stream;
    private List<Object> values;
    private TaskBaseMetric taskStats;

    public AckSpoutMsg(Object id, ISpout _spout, Tuple tuple, TupleInfo tupleInfo, TaskBaseMetric _task_stats) {
        this.id = id;
        this.taskStats = _task_stats;
        this.spout = _spout;
        this.msgId = tupleInfo.getMessageId();
        this.stream = tupleInfo.getStream();
        this.values = tupleInfo.getValues();
        this.tuple = tuple;
        this.tupleInfo = tupleInfo;
    }

    public void run() {
        if (JStormDebugger.isDebug(id)) {
            LOG.info("Acking message rootId:{}, messageId:{}", id, msgId);
        }

        if (spout instanceof IAckValueSpout) {
            IAckValueSpout ackValueSpout = (IAckValueSpout) spout;
            ackValueSpout.ack(msgId, values);
        } else {
            spout.ack(msgId);
        }

        long latencyStart = tupleInfo.getTimestamp(), lifeCycleStart = 0;
        if (latencyStart != 0 && JStormMetrics.enabled) {
            long endTime = System.currentTimeMillis();
            if (tuple != null && tuple instanceof TupleExt) {
                lifeCycleStart = ((TupleExt) tuple).getCreationTimeStamp();
            }
            taskStats.spout_acked_tuple(stream, latencyStart, lifeCycleStart, endTime);
        }
    }
}