com.scurrilous.circe.params.SimpleHashParameters Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2014 Trevor Robinson
*
* Licensed 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 com.scurrilous.circe.params;
import com.scurrilous.circe.HashParameters;
/**
* Hash parameters consisting only of an algorithm name. Includes instances
* describing some commonly used algorithms.
*/
public class SimpleHashParameters implements HashParameters {
private final String algorithm;
/**
* Constructs a {@link SimpleHashParameters} with the given algorithm name.
*
* @param algorithm the name of the hash algorithm
*/
public SimpleHashParameters(String algorithm) {
this.algorithm = algorithm;
}
@Override
public String algorithm() {
return algorithm;
}
@Override
public int hashCode() {
return algorithm.hashCode();
}
@Override
public boolean equals(Object obj) {
if (obj == this)
return true;
if (obj == null || obj.getClass() != SimpleHashParameters.class)
return false;
return algorithm.equals(((SimpleHashParameters) obj).algorithm);
}
@Override
public String toString() {
return algorithm;
}
/**
* Represents the MD5 (128-bit) hash algorithm.
*/
public static final SimpleHashParameters MD5 = new SimpleHashParameters("MD5");
/**
* Represents the SHA-1 (160-bit) hash algorithm.
*/
public static final SimpleHashParameters SHA1 = new SimpleHashParameters("SHA-1");
/**
* Represents the SHA-256 (256-bit) hash algorithm.
*/
public static final SimpleHashParameters SHA256 = new SimpleHashParameters("SHA-256");
/**
* Represents the SHA-384 (384-bit) hash algorithm.
*/
public static final SimpleHashParameters SHA384 = new SimpleHashParameters("SHA-384");
/**
* Represents the SHA-512 (512-bit) hash algorithm.
*/
public static final SimpleHashParameters SHA512 = new SimpleHashParameters("SHA-512");
}