001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.io.crypto.tls;
019
020import java.util.Objects;
021
022/**
023 * This file has been copied from the Apache ZooKeeper project.
024 * @see <a href=
025 *      "https://github.com/apache/zookeeper/blob/c74658d398cdc1d207aa296cb6e20de00faec03e/zookeeper-server/src/main/java/org/apache/zookeeper/common/FileKeyStoreLoaderBuilderProvider.java">Base
026 *      revision</a>
027 */
028final class FileKeyStoreLoaderBuilderProvider {
029  /**
030   * Returns a {@link FileKeyStoreLoader.Builder} that can build a loader which loads keys and certs
031   * from files of the given {@link KeyStoreFileType}.
032   * @param type the file type to load keys/certs from.
033   * @return a new Builder.
034   */
035  static FileKeyStoreLoader.Builder<? extends FileKeyStoreLoader>
036    getBuilderForKeyStoreFileType(KeyStoreFileType type) {
037    switch (Objects.requireNonNull(type)) {
038      case JKS:
039        return new JKSFileLoader.Builder();
040      case PEM:
041        return new PEMFileLoader.Builder();
042      case PKCS12:
043        return new PKCS12FileLoader.Builder();
044      case BCFKS:
045        return new BCFKSFileLoader.Builder();
046      default:
047        throw new AssertionError("Unexpected StoreFileType: " + type.name());
048    }
049  }
050
051  private FileKeyStoreLoaderBuilderProvider() {
052    // disabled
053  }
054}