Java ByteBuffer Size sizeOfBytesMap(Map m)

Description

size Of Bytes Map

License

Apache License

Declaration

public static int sizeOfBytesMap(Map<String, ByteBuffer> m) 

Method Source Code

//package com.java2s;
/*//ww  w.j  a  v a2  s .c om
 *      Copyright (C) 2012-2015 DataStax 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.nio.ByteBuffer;

import java.util.*;

public class Main {
    public static int sizeOfBytesMap(Map<String, ByteBuffer> m) {
        int size = 2;
        for (Map.Entry<String, ByteBuffer> entry : m.entrySet()) {
            size += sizeOfString(entry.getKey());
            size += sizeOfBytes(entry.getValue());
        }
        return size;
    }

    public static int sizeOfString(String str) {
        return 2 + encodedUTF8Length(str);
    }

    public static int sizeOfBytes(byte[] bytes) {
        return 2 + bytes.length;
    }

    public static int sizeOfBytes(ByteBuffer bytes) {
        return 2 + bytes.remaining();
    }

    private static int encodedUTF8Length(String st) {
        int strlen = st.length();
        int utflen = 0;
        for (int i = 0; i < strlen; i++) {
            int c = st.charAt(i);
            if ((c >= 0x0001) && (c <= 0x007F))
                utflen++;
            else if (c > 0x07FF)
                utflen += 3;
            else
                utflen += 2;
        }
        return utflen;
    }
}

Related

1. rescaleImage(BufferedImage img, int targetWidth, int targetHeight, Object hint)
2. rightSize(ByteBuffer in)
3. sameSize(BufferedImage im1, BufferedImage im2)
4. scanForDuplicates(BufferedImage leftImage, BufferedImage[] images, int i, int[] order, int width, int height)
5. sizeOfBytes(ByteBuffer bytes)
6. sizeOfValue(ByteBuffer bytes)
7. sizeP(ByteBuffer bb)
8. storeInt(ByteBuffer b, int fromIndex, int size, int value)
9. tileImage(Graphics g, BufferedImage tileImage, int width, int height)