content: /**
   * 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.common.metric;
  
  import com.alibaba.jstorm.metric.KVSerializable;
  import com.alibaba.jstorm.metric.MetricUtils;
  import com.alibaba.jstorm.utils.JStormUtils;
  
  import java.util.Date;
  
  /**
   * @author wange
   * @since 15/7/16
   */
  public class TaskTrack implements KVSerializable {
  
      private long id;
      private String clusterName;
      private String topologyId;
      private String component;
      private int taskId;
      private String host;
      private int port;
      private Date start;
      private Date end;
  
      public TaskTrack() {
      }
  
      public TaskTrack(String clusterName, String topologyId) {
          this.clusterName = clusterName;
          this.topologyId = topologyId;
      }
  
      public long getId() {
          return id;
      }
  
      public void setId(long id) {
          this.id = id;
      }
  
      public String getClusterName() {
          return clusterName;
      }
  
      public void setClusterName(String clusterName) {
          this.clusterName = clusterName;
      }
  
      public String getTopologyId() {
          return topologyId;
      }
  
      public void setTopologyId(String topologyId) {
          this.topologyId = topologyId;
      }
  
      public String getComponent() {
          return component;
      }
  
      public void setComponent(String component) {
          this.component = component;
      }
  
      public int getTaskId() {
          return taskId;
      }
  
      public void setTaskId(int taskId) {
          this.taskId = taskId;
      }
  
      public String getHost() {
          return host;
      }
  
      public void setHost(String host) {
          this.host = host;
      }
  
      public int getPort() {
          return port;
      }
  
      public void setPort(int port) {
          this.port = port;
      }
  
      public Date getStart() {
          return start;
      }
  
      public void setStart(Date start) {
          this.start = start;
      }
  
      public Date getEnd() {
          return end;
      }
  
      public void setEnd(Date end) {
          this.end = end;
      }
  
      /**
       * key: clusterName + topologyId + taskId + time
       */
      @Override
      public byte[] getKey() {
          StringBuilder sb = new StringBuilder(128);
          sb.append(clusterName).append(MetricUtils.AT).append(topologyId).append(MetricUtils.AT)
                  .append(taskId).append(MetricUtils.AT);
          if (start != null) {
              sb.append(start.getTime());
          } else {
              sb.append(end.getTime());
          }
          return sb.toString().getBytes();
      }
  
      /**
       * value: type + host + port
       * type: S/E (start/end)
       */
      @Override
      public byte[] getValue() {
          StringBuilder sb = new StringBuilder(32);
          if (start != null) {
              sb.append(KVSerializable.START);
          } else {
              sb.append(KVSerializable.END);
          }
          sb.append(MetricUtils.AT).append(host).append(MetricUtils.AT).append(port);
          return sb.toString().getBytes();
      }
  
      @Override
      public Object fromKV(byte[] key, byte[] value) {
          String[] keyParts = new String(key).split(MetricUtils.DELIM);
  
          String[] valueParts = new String(value).split(MetricUtils.DELIM);
          boolean isStart = false;
          if (valueParts.length >= 3){
              if (valueParts[0].equals(KVSerializable.START)) isStart = true;
              host = valueParts[1];
              port = JStormUtils.parseInt(valueParts[2]);
          }
  
          if (keyParts.length >= 4){
              clusterName = keyParts[0];
              topologyId = keyParts[1];
              taskId = JStormUtils.parseInt(keyParts[2]);
              long ts = JStormUtils.parseLong(keyParts[3]);
              if (isStart) start = new Date(ts);
              else end = new Date(ts);
          }
  
          return this;
      }
  
      public Date getTime() {
          return start != null ? start : end;
      }
  
      public String getIdentity(){
          StringBuilder sb = new StringBuilder();
          sb.append(clusterName).append(MetricUtils.AT).append(topologyId).append(MetricUtils.AT)
                  .append(taskId).append(MetricUtils.AT).append(host).append(MetricUtils.AT).append(port);
          return sb.toString();
      }
  
      public void merge(TaskTrack taskTrack){
          if (taskTrack.start != null && this.start == null){
              this.start = taskTrack.start;
          }
          if (taskTrack.end != null && this.end == null){
              this.end = taskTrack.end;
          }
      }
  }
  