/*
* Druid - a distributed column store.
* Copyright (C) 2012, 2013 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 io.druid.indexing.worker;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Preconditions;
import io.druid.indexing.common.TaskStatus;
import io.druid.indexing.common.task.Task;
import io.druid.indexing.common.task.TaskResource;
/**
* Used by workers to announce the status of tasks they are currently running. This class is immutable.
*/
public class TaskAnnouncement
{
private final TaskStatus taskStatus;
private final TaskResource taskResource;
public static TaskAnnouncement create(Task task, TaskStatus status)
{
Preconditions.checkArgument(status.getId().equals(task.getId()), "task id == status id");
return new TaskAnnouncement(null, null, status, task.getTaskResource());
}
@JsonCreator
private TaskAnnouncement(
@JsonProperty("id") String taskId,
@JsonProperty("status") TaskStatus.Status status,
@JsonProperty("taskStatus") TaskStatus taskStatus,
@JsonProperty("taskResource") TaskResource taskResource
)
{
if (taskStatus != null) {
this.taskStatus = taskStatus;
} else {
// Can be removed when backwards compat is no longer needed
this.taskStatus = TaskStatus.fromCode(taskId, status);
}
this.taskResource = taskResource == null ? new TaskResource(this.taskStatus.getId(), 1) : taskResource;
}
// Can be removed when backwards compat is no longer needed
@JsonProperty("id")
@Deprecated
public String getTaskId()
{
return taskStatus.getId();
}
// Can be removed when backwards compat is no longer needed
@JsonProperty("status")
@Deprecated
public TaskStatus.Status getStatus()
{
return taskStatus.getStatusCode();
}
@JsonProperty("taskStatus")
public TaskStatus getTaskStatus()
{
return taskStatus;
}
@JsonProperty("taskResource")
public TaskResource getTaskResource()
{
return taskResource;
}
}