Android OutputStream Write writeBom(OutputStream outputStream, String encoding)

Description

Writes the BOM(Byte Order Mark) to the file.

License

Apache License

Parameter

Parameter	Description
p_outputStream	a parameter
encoding	a parameter

Declaration

public static void writeBom(OutputStream outputStream, String encoding) 

Method Source Code

/**//from   w  w  w  .  j a  v  a2 s . c  om
 *  Copyright 2009 Welocalize, Inc. 
 *  
 *  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.
 *  
 */

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.log4j.Logger;

public class Main{
    static private final Logger logger = Logger.getLogger(FileUtil.class);
    static public final String UTF8 = "UTF-8";
    static public final String UTF16LE = "UTF-16LE";
    static public final String UTF16BE = "UTF-16BE";
    /**
     * Writes the BOM(Byte Order Mark) to the file.
     * 
     * @param p_outputStream
     * @param encoding
     */
    public static void writeBom(OutputStream outputStream, String encoding) {
        if (outputStream != null && encoding != null) {
            byte[] b = null;

            if (UTF8.equals(encoding)) {
                b = new byte[3];
                b[0] = (byte) 0xef;
                b[1] = (byte) 0xbb;
                b[2] = (byte) 0xbf;
            } else if (UTF16LE.equals(encoding)) {
                b = new byte[2];
                b[0] = (byte) 0xff;
                b[1] = (byte) 0xfe;
            } else if (UTF16BE.equals(encoding)) {
                b = new byte[2];
                b[0] = (byte) 0xfe;
                b[1] = (byte) 0xff;
            }

            if (b != null) {
                try {
                    outputStream.write(b);
                } catch (IOException e) {
                    logger.error(e.getMessage(), e);
                }
            }
        }
    }
}

Related

1. copy(String input, OutputStream output)
2. writeSInt24ToStream(final OutputStream destination, final int value)
3. copy(InputStream in, OutputStream out)
4. writeByte(final String str, final OutputStream out, Map cache)
5. uint32ToStream(long value, OutputStream stream)