io.druid.indexing.overlord.TaskRunnerWorkItem.java Source code

Introduction

Here is the source code for io.druid.indexing.overlord.TaskRunnerWorkItem.java

Source

/*
 * Druid - a distributed column store.
 * Copyright 2012 - 2015 Metamarkets Group Inc.
 *
 * Licensed 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 io.druid.indexing.overlord;

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.collect.ComparisonChain;
import com.google.common.util.concurrent.ListenableFuture;
import io.druid.indexing.common.TaskStatus;
import org.joda.time.DateTime;
import org.joda.time.DateTimeComparator;

/**
 * A holder for a task and different components associated with the task
 */
public class TaskRunnerWorkItem implements Comparable<TaskRunnerWorkItem> {
    private final String taskId;
    private final ListenableFuture<TaskStatus> result;
    private final DateTime createdTime;
    private final DateTime queueInsertionTime;

    public TaskRunnerWorkItem(String taskId, ListenableFuture<TaskStatus> result) {
        this(taskId, result, new DateTime(), new DateTime());
    }

    public TaskRunnerWorkItem(String taskId, ListenableFuture<TaskStatus> result, DateTime createdTime,
            DateTime queueInsertionTime) {
        this.taskId = taskId;
        this.result = result;
        this.createdTime = createdTime;
        this.queueInsertionTime = queueInsertionTime;
    }

    @JsonProperty
    public String getTaskId() {
        return taskId;
    }

    @JsonIgnore
    public ListenableFuture<TaskStatus> getResult() {
        return result;
    }

    @JsonProperty
    public DateTime getCreatedTime() {
        return createdTime;
    }

    @JsonProperty
    public DateTime getQueueInsertionTime() {
        return queueInsertionTime;
    }

    public TaskRunnerWorkItem withQueueInsertionTime(DateTime time) {
        return new TaskRunnerWorkItem(taskId, result, createdTime, time);
    }

    @Override
    public int compareTo(TaskRunnerWorkItem taskRunnerWorkItem) {
        return ComparisonChain.start()
                .compare(createdTime, taskRunnerWorkItem.getCreatedTime(), DateTimeComparator.getInstance())
                .compare(taskId, taskRunnerWorkItem.getTaskId()).result();
    }

    @Override
    public String toString() {
        return "TaskRunnerWorkItem{" + "taskId='" + taskId + '\'' + ", result=" + result + ", createdTime="
                + createdTime + ", queueInsertionTime=" + queueInsertionTime + '}';
    }
}