de.retest.util.ChecksumCalculator Maven / Gradle / Ivy

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The domain model for both retest and recheck.

There is a newer version: 6.0.0

package de.retest.util;

import java.nio.charset.Charset;

import com.google.common.hash.HashFunction;
import com.google.common.hash.Hashing;

public class ChecksumCalculator {

	public static final int LENGTH_OF_SHA256 = 64;

	private static ChecksumCalculator instance;

	public static ChecksumCalculator getInstance() {
		if ( instance == null ) {
			instance = new ChecksumCalculator();
		}
		return instance;
	}

	private final HashFunction sha256 = Hashing.sha256();
	private final HashFunction md5 = Hashing.md5();

	public String sha256( final String input ) {
		return sha256.hashString( input, Charset.defaultCharset() ).toString();
	}

	public String sha256( final byte[] input ) {
		return sha256.hashBytes( input ).toString();
	}

	public String md5( final String input ) {
		return md5.hashString( input, Charset.defaultCharset() ).toString();
	}

	public String md5( final byte[] input ) {
		return md5.hashBytes( input ).toString();
	}

}