| /* |
| * 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.shiro.crypto.hash; |
| |
| import org.apache.shiro.lang.util.ByteSource; |
| |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import static java.util.Collections.unmodifiableMap; |
| import static java.util.Objects.requireNonNull; |
| |
| /** |
| * Simple implementation of {@link HashRequest} that can be used when interacting with a {@link HashService}. |
| * |
| * @since 1.2 |
| */ |
| public class SimpleHashRequest implements HashRequest { |
| |
| private final ByteSource source; //cannot be null - this is the source to hash. |
| private final ByteSource salt; //null = no salt specified |
| private final String algorithmName; //null = let the HashService decide. |
| private final Map<String, Object> parameters = new ConcurrentHashMap<>(); |
| |
| /** |
| * Creates a new SimpleHashRequest instance. |
| * |
| * @param algorithmName the name of the hash algorithm to use. This is often null as the |
| * {@link HashService} implementation is usually configured with an appropriate algorithm name, but this |
| * can be non-null if the hash service's algorithm should be overridden with a specific one for the duration |
| * of the request. |
| * @param source the source to be hashed |
| * @param salt any public salt which should be used when computing the hash |
| * @param parameters e.g. the number of hash iterations to execute or other parameters. |
| * @throws NullPointerException if {@code source} is null or empty or {@code parameters} is {@code null}. |
| */ |
| public SimpleHashRequest(String algorithmName, ByteSource source, ByteSource salt, Map<String, Object> parameters) { |
| this.source = requireNonNull(source); |
| this.salt = salt; |
| this.algorithmName = algorithmName; |
| this.parameters.putAll(requireNonNull(parameters)); |
| } |
| |
| @Override |
| public ByteSource getSource() { |
| return this.source; |
| } |
| |
| @Override |
| public Optional<ByteSource> getSalt() { |
| return Optional.ofNullable(this.salt); |
| } |
| |
| |
| @Override |
| public Optional<String> getAlgorithmName() { |
| return Optional.ofNullable(algorithmName); |
| } |
| |
| @Override |
| public Map<String, Object> getParameters() { |
| return unmodifiableMap(this.parameters); |
| } |
| } |