hadoop SimpleKeyProvider 源码
haddop SimpleKeyProvider 代码
文件路径：/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/SimpleKeyProvider.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.services;
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.azurebfs.AbfsConfiguration;
import org.apache.hadoop.fs.azurebfs.constants.ConfigurationKeys;
import org.apache.hadoop.fs.azurebfs.contracts.exceptions.KeyProviderException;
import org.apache.hadoop.fs.azurebfs.contracts.exceptions.InvalidConfigurationValueException;
import org.apache.hadoop.fs.azurebfs.diagnostics.Base64StringConfigurationBasicValidator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Key provider that simply returns the storage account key from the
* configuration as plaintext.
*/
public class SimpleKeyProvider implements KeyProvider {
private static final Logger LOG = LoggerFactory.getLogger(SimpleKeyProvider.class);
@Override
public String getStorageAccountKey(String accountName, Configuration rawConfig)
throws KeyProviderException {
String key = null;
try {
AbfsConfiguration abfsConfig = new AbfsConfiguration(rawConfig, accountName);
key = abfsConfig.getPasswordString(ConfigurationKeys.FS_AZURE_ACCOUNT_KEY_PROPERTY_NAME);
// Validating the key.
validateStorageAccountKey(key);
} catch (IllegalAccessException | InvalidConfigurationValueException e) {
LOG.debug("Failure to retrieve storage account key for {}", accountName,
e);
throw new KeyProviderException("Failure to initialize configuration for "
+ accountName
+ " key =\"" + key + "\""
+ ": " + e, e);
} catch(IOException ioe) {
LOG.warn("Unable to get key for {} from credential providers. {}",
accountName, ioe, ioe);
}
return key;
}
/**
* A method to validate the storage key.
*
* @param key the key to be validated.
* @throws InvalidConfigurationValueException
*/
private void validateStorageAccountKey(String key)
throws InvalidConfigurationValueException {
Base64StringConfigurationBasicValidator validator = new Base64StringConfigurationBasicValidator(
ConfigurationKeys.FS_AZURE_ACCOUNT_KEY_PROPERTY_NAME, "", true);
validator.validate(key);
}
}
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