com.metamx.druid.merger.coordinator.TaskRunnerWorkItem.java Source code

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Here is the source code for com.metamx.druid.merger.coordinator.TaskRunnerWorkItem.java

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/*
 * Druid - a distributed column store.
 * Copyright (C) 2012  Metamarkets Group Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package com.metamx.druid.merger.coordinator;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.metamx.druid.merger.common.RetryPolicy;
import com.metamx.druid.merger.common.TaskCallback;
import com.metamx.druid.merger.common.task.Task;
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 Task task;
    private final TaskCallback callback;
    private final RetryPolicy retryPolicy;
    private final DateTime createdTime;

    private volatile DateTime queueInsertionTime;

    public TaskRunnerWorkItem(Task task, TaskCallback callback, RetryPolicy retryPolicy, DateTime createdTime) {
        this.task = task;
        this.callback = callback;
        this.retryPolicy = retryPolicy;
        this.createdTime = createdTime;
    }

    @JsonProperty
    public Task getTask() {
        return task;
    }

    public TaskCallback getCallback() {
        return callback;
    }

    public RetryPolicy getRetryPolicy() {
        return retryPolicy;
    }

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

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

    public TaskRunnerWorkItem withQueueInsertionTime(DateTime time) {
        this.queueInsertionTime = time;
        return this;
    }

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

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        TaskRunnerWorkItem that = (TaskRunnerWorkItem) o;

        if (callback != null ? !callback.equals(that.callback) : that.callback != null) {
            return false;
        }
        if (retryPolicy != null ? !retryPolicy.equals(that.retryPolicy) : that.retryPolicy != null) {
            return false;
        }
        if (task != null ? !task.equals(that.task) : that.task != null) {
            return false;
        }

        return true;
    }

    @Override
    public int hashCode() {
        int result = task != null ? task.hashCode() : 0;
        result = 31 * result + (callback != null ? callback.hashCode() : 0);
        result = 31 * result + (retryPolicy != null ? retryPolicy.hashCode() : 0);
        return result;
    }

    @Override
    public String toString() {
        return "TaskRunnerWorkItem{" + "task=" + task + ", callback=" + callback + ", retryPolicy=" + retryPolicy
                + ", createdTime=" + createdTime + '}';
    }
}