/
GetTokenHandler.java
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/
GetTokenHandler.java
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/*
* 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.ozone.shell.token;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.ozone.client.OzoneClient;
import org.apache.hadoop.ozone.client.OzoneClientException;
import org.apache.hadoop.ozone.security.OzoneTokenIdentifier;
import org.apache.hadoop.ozone.shell.OzoneAddress;
import org.apache.hadoop.ozone.shell.Handler;
import org.apache.hadoop.ozone.shell.Shell;
import org.apache.hadoop.security.token.Token;
import picocli.CommandLine;
import picocli.CommandLine.Command;
import java.io.IOException;
import java.util.Objects;
/**
* Executes getDelegationToken api.
*/
@Command(name = "get",
description = "get a delegation token.")
public class GetTokenHandler extends Handler {
@CommandLine.Parameters(arity = "0..1",
description = Shell.OZONE_URI_DESCRIPTION)
private String uri;
@CommandLine.Mixin
private RenewerOption renewer;
@Override
protected OzoneAddress getAddress() throws OzoneClientException {
return new OzoneAddress(uri);
}
@Override
protected void execute(OzoneClient client, OzoneAddress address)
throws IOException, OzoneClientException {
if (securityEnabled("token get")) {
Token<OzoneTokenIdentifier> token = client.getObjectStore()
.getDelegationToken(new Text(renewer.getValue()));
if (Objects.isNull(token)) {
err().println("Error: Get delegation token operation failed. " +
"Check OzoneManager logs for more details.");
} else {
printObjectAsJson(token.encodeToUrlString());
}
}
}
}