hadoop KeyProviderExtension 源码

haddop KeyProviderExtension 代码

文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/KeyProviderExtension.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.crypto.key;

import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.util.List;

/**
 * This is a utility class used to extend the functionality of KeyProvider, that
 * takes a KeyProvider and an Extension. It implements all the required methods
 * of the KeyProvider by delegating it to the provided KeyProvider.
 */
public abstract class KeyProviderExtension
<E extends KeyProviderExtension.Extension> extends KeyProvider {

  /**
   * A marker interface for the KeyProviderExtension subclass implement.
   */
  public static interface Extension {
  }

  private KeyProvider keyProvider;
  private E extension;

  public KeyProviderExtension(KeyProvider keyProvider, E extensions) {
    super(keyProvider.getConf());
    this.keyProvider = keyProvider;
    this.extension = extensions;
  }
  
  protected E getExtension() {
    return extension;
  }
  
  protected KeyProvider getKeyProvider() {
    return keyProvider;
  }

  @Override
  public boolean isTransient() {
    return keyProvider.isTransient();
  }

  @Override
  public Metadata[] getKeysMetadata(String... names) throws IOException {
    return keyProvider.getKeysMetadata(names);
  }

  @Override
  public KeyVersion getCurrentKey(String name) throws IOException {
    return keyProvider.getCurrentKey(name);
  }

  @Override
  public KeyVersion createKey(String name, Options options)
      throws NoSuchAlgorithmException, IOException {
    return keyProvider.createKey(name, options);
  }

  @Override
  public KeyVersion rollNewVersion(String name)
      throws NoSuchAlgorithmException, IOException {
    return keyProvider.rollNewVersion(name);
  }

  @Override
  public KeyVersion getKeyVersion(String versionName) throws IOException {
    return keyProvider.getKeyVersion(versionName);
  }

  @Override
  public List<String> getKeys() throws IOException {
    return keyProvider.getKeys();
  }

  @Override
  public List<KeyVersion> getKeyVersions(String name) throws IOException {
    return keyProvider.getKeyVersions(name);
  }

  @Override
  public Metadata getMetadata(String name) throws IOException {
    return keyProvider.getMetadata(name);
  }

  @Override
  public KeyVersion createKey(String name, byte[] material, Options options)
      throws IOException {
    return keyProvider.createKey(name, material, options);
  }

  @Override
  public void deleteKey(String name) throws IOException {
    keyProvider.deleteKey(name);
  }

  @Override
  public KeyVersion rollNewVersion(String name, byte[] material)
      throws IOException {
    return keyProvider.rollNewVersion(name, material);
  }

  @Override
  public void invalidateCache(String name) throws IOException {
    keyProvider.invalidateCache(name);
  }

  @Override
  public void flush() throws IOException {
    keyProvider.flush();
  }

  @Override
  public String toString() {
    return getClass().getSimpleName() + ": " + keyProvider.toString();
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop CachingKeyProvider 源码

hadoop JavaKeyStoreProvider 源码

hadoop KeyProvider 源码

hadoop KeyProviderCryptoExtension 源码

hadoop KeyProviderDelegationTokenExtension 源码

hadoop KeyProviderFactory 源码

hadoop KeyProviderTokenIssuer 源码

hadoop KeyShell 源码

hadoop UserProvider 源码

hadoop package-info 源码