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Elasticsearch subproject :server
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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 org.elasticsearch.tasks;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import java.io.IOException;
/**
* Task id that consists of node id and id of the task on the node
*/
public final class TaskId implements Writeable {
public final static TaskId EMPTY_TASK_ID = new TaskId("", -1L);
private final String nodeId;
private final long id;
public TaskId(String nodeId, long id) {
this.nodeId = nodeId;
this.id = id;
}
public TaskId(String taskId) {
if (Strings.hasLength(taskId) && "unset".equals(taskId) == false) {
String[] s = Strings.split(taskId, ":");
if (s == null || s.length != 2) {
throw new IllegalArgumentException("malformed task id " + taskId);
}
this.nodeId = s[0];
try {
this.id = Long.parseLong(s[1]);
} catch (NumberFormatException ex) {
throw new IllegalArgumentException("malformed task id " + taskId, ex);
}
} else {
nodeId = "";
id = -1L;
}
}
public TaskId(StreamInput in) throws IOException {
nodeId = in.readString();
id = in.readLong();
}
public String getNodeId() {
return nodeId;
}
public long getId() {
return id;
}
public boolean isSet() {
return id != -1L;
}
@Override
public String toString() {
if (isSet()) {
return nodeId + ":" + id;
} else {
return "unset";
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeString(nodeId);
out.writeLong(id);
}
@Override
public TaskId readFrom(StreamInput in) throws IOException {
return new TaskId(in);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
TaskId taskId = (TaskId) o;
if (id != taskId.id) return false;
return nodeId.equals(taskId.nodeId);
}
@Override
public int hashCode() {
int result = nodeId.hashCode();
result = 31 * result + (int) (id ^ (id >>> 32));
return result;
}
}