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/*
* 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.
*
*/
/**
* Various string manipulation methods that are more efficient then chaining
* string operations: all is done in the same buffer without creating a bunch of
* string objects.
*
* @author <a href="mailto:dev@labs.apache.org">Dungeon Project</a>
*/
public class Main {
/**
* Gets a hex string from byte array.
*
* @param res
* the byte array
* @return the hex string representing the binary values in the array
*/
public static final String toHexString( byte[] res )
{
StringBuffer buf = new StringBuffer( res.length << 1 );
for ( int ii = 0; ii < res.length; ii++ )
{
String digit = Integer.toHexString( 0xFF & res[ii] );
if ( digit.length() == 1 )
{
digit = '0' + digit;
}
buf.append( digit );
}
return buf.toString().toUpperCase();
}
}
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