Java ByteBuffer Print printData(ByteBuffer buffer, int len)

Description

print Data

License

Open Source License

Declaration

public static String printData(ByteBuffer buffer, int len) 

Method Source Code

//package com.java2s;
/*//from  w w w. ja v a2  s  .  co  m
 * This file is part of l2jserver2 <l2jserver2.com>.
 *
 * l2jserver2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * l2jserver2 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with l2jserver2.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.nio.ByteBuffer;

public class Main {
    public static String printData(ByteBuffer buffer, int len) {
        StringBuilder result = new StringBuilder();

        int counter = 0;
        int length = buffer.remaining();

        for (int i = 0; i < len; i++) {
            //         if (counter % 16 == 0) {
            //            result.append(fillHex(i, 4) + ": ");
            //         }

            //result.append(fillHex(buffer.get(i) & 0xff, 2) + " ");
            counter++;
            if (counter == 16) {
                //result.append("   ");

                int charpoint = i - 15;
                for (int a = 0; a < 16; a++) {
                    int t1 = buffer.get(charpoint++);
                    if (t1 > 0x1f && t1 < 0x80) {
                        result.append((char) t1);
                    } else {
                        result.append('.');
                    }
                }

                result.append('\n');
                counter = 0;
            }
        }

        int rest = length % 16;
        if (rest > 0) {
            for (int i = 0; i < 17 - rest; i++) {
                //result.append("   ");
            }

            int charpoint = length - rest;
            for (int a = 0; a < rest; a++) {
                int t1 = buffer.get(charpoint++);
                if (t1 > 0x1f && t1 < 0x80) {
                    result.append((char) t1);
                } else {
                    result.append('.');
                }
            }

            result.append('\n');
        }

        return result.toString();
    }
}

Related

1. printBuffer(ByteBuffer buffer)
2. printBuffer(ByteBuffer buffer)
3. printBuffer(String msg, ByteBuffer buffer)
4. printByteBuffer(ByteBuffer buf)
5. printData(ByteBuffer buf, int offset, int len)
6. printImageContentsSubset(ByteBuffer buf, int w, int h)
7. println(String string, ByteBuffer buffer)
8. printTraceHexData(PrintWriter trc, ByteBuffer buf, int startPos, int endPos)