Util.java Source code

Introduction

Here is the source code for Util.java

Source

/* infoScoop OpenSource
 * Copyright (C) 2010 Beacon IT Inc.
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * as published by the Free Software Foundation.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/lgpl-3.0-standalone.html>.
 */

/**
 * A utility class related to character string.
 * 
 * @author Eiichi Sakurai
 */

import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;

public class Util {

    /**
     * @param originalString Original character string
     * @param byteLength A necessary byte length
     * @param charset Because we use DB2, we fix "UTF-8".
     * @return
     * @throws UnsupportedEncodingException
     */
    public static String getTruncatedString(String originalString, int byteLength, String charset)
            throws UnsupportedEncodingException {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        byte[] originalBytes = originalString.getBytes(charset);
        if (originalBytes.length <= byteLength)
            return originalString;
        out.write(originalBytes, 0, byteLength + 1);
        String result = new String(out.toByteArray(), charset);
        return result.substring(0, result.length() - 1);
    }
}