hadoop TimelineDelegationTokenIdentifier 源码
haddop TimelineDelegationTokenIdentifier 代码
文件路径:/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/security/client/TimelineDelegationTokenIdentifier.java
/**
* 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 org.apache.hadoop.yarn.security.client;
import java.io.IOException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceAudience.Public;
import org.apache.hadoop.classification.InterfaceStability.Evolving;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.security.token.TokenRenewer;
import org.apache.hadoop.yarn.client.api.TimelineClient;
import org.apache.hadoop.yarn.exceptions.YarnException;
@Public
@Evolving
public class TimelineDelegationTokenIdentifier extends YARNDelegationTokenIdentifier {
public static final Text KIND_NAME = new Text("TIMELINE_DELEGATION_TOKEN");
public TimelineDelegationTokenIdentifier() {
}
/**
* Create a new timeline delegation token identifier
*
* @param owner the effective username of the token owner
* @param renewer the username of the renewer
* @param realUser the real username of the token owner
*/
public TimelineDelegationTokenIdentifier(Text owner, Text renewer,
Text realUser) {
super(owner, renewer, realUser);
}
@Override
public Text getKind() {
return KIND_NAME;
}
@InterfaceAudience.Private
public static class Renewer extends TokenRenewer {
@Override
public boolean handleKind(Text kind) {
return KIND_NAME.equals(kind);
}
@Override
public boolean isManaged(Token<?> token) throws IOException {
return true;
}
@SuppressWarnings("unchecked")
@Override
public long renew(Token<?> token, Configuration conf) throws IOException,
InterruptedException {
TimelineClient client = TimelineClient.createTimelineClient();
try {
client.init(conf);
client.start();
return client.renewDelegationToken(
(Token<TimelineDelegationTokenIdentifier>) token);
} catch (YarnException e) {
throw new IOException(e);
} finally {
client.stop();
}
}
@SuppressWarnings("unchecked")
@Override
public void cancel(Token<?> token, Configuration conf) throws IOException,
InterruptedException {
TimelineClient client = TimelineClient.createTimelineClient();
try {
client.init(conf);
client.start();
client.cancelDelegationToken(
(Token<TimelineDelegationTokenIdentifier>) token);
} catch (YarnException e) {
throw new IOException(e);
} finally {
client.stop();
}
}
}
}
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