hadoop ClientCredsTokenProvider 源码
haddop ClientCredsTokenProvider 代码
文件路径：/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/oauth2/ClientCredsTokenProvider.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.fs.azurebfs.oauth2;
import java.io.IOException;
import org.apache.hadoop.util.Preconditions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Provides tokens based on client credentials.
*/
public class ClientCredsTokenProvider extends AccessTokenProvider {
private final String authEndpoint;
private final String clientId;
private final String clientSecret;
private static final Logger LOG = LoggerFactory.getLogger(AccessTokenProvider.class);
public ClientCredsTokenProvider(final String authEndpoint,
final String clientId, final String clientSecret) {
Preconditions.checkNotNull(authEndpoint, "authEndpoint");
Preconditions.checkNotNull(clientId, "clientId");
Preconditions.checkNotNull(clientSecret, "clientSecret");
this.authEndpoint = authEndpoint;
this.clientId = clientId;
this.clientSecret = clientSecret;
}
@Override
protected AzureADToken refreshToken() throws IOException {
LOG.debug("AADToken: refreshing client-credential based token");
return AzureADAuthenticator.getTokenUsingClientCreds(authEndpoint, clientId, clientSecret);
}
}
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