Generates a hash code for a given source code.
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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,
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"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.opentides.util;
import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Random;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
public class StringUtil {
private static Random random = new Random((new Date()).getTime());
/**
* Generates a hash code for a given source code.
* This method ignores whitespace in generating the hash code.
* @param source
* @return
*/
public static String hashSourceCode(String source) {
MessageDigest md;
try {
md = MessageDigest.getInstance("MD5");
md.update(source.getBytes());
return new sun.misc.BASE64Encoder().encode(md.digest());
} catch (NoSuchAlgorithmException e) {
//_log.error("Failed to generate hashcode.", e);
}
return null;
}
}
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