Java ByteBuffer Read readVariableLength(ByteBuffer buf)

Description

read Variable Length

License

Open Source License

Declaration

public final static int readVariableLength(ByteBuffer buf) 

Method Source Code

//package com.java2s;
import java.io.InputStream;
import java.nio.ByteBuffer;

public class Main {
    public final static int readVariableLength(InputStream is) {
        int length = 0;
        int cur;//from  w  w w  .ja v a2 s. co  m
        try {
            do {
                cur = is.read();
                length |= (cur & 0x7F);
                if ((cur & 0x80) != 0)
                    length <<= 7;
            } while ((cur & 0x80) != 0);
            return length;
        } catch (Exception e) {
            return 0;
        }
    }

    public final static int readVariableLength(ByteBuffer buf) {
        int length = 0;
        int cur;
        if (buf.hasRemaining())
            do {
                cur = buf.get();
                length |= (cur & 0x7F);
                if ((cur & 0x80) != 0)
                    length <<= 7;
            } while ((cur & 0x80) != 0 && buf.hasRemaining());
        return length;
    }
}

Related

1. readSmart(ByteBuffer buffer)
2. readToBytes(ByteBuffer byteBuffer)
3. readTs(ByteBuffer is)
4. readTs(ByteBuffer is, int c)
5. readUUID(ByteBuffer buffer)
6. readVInt(ByteBuffer bb)
7. readVInt(ByteBuffer bb)
8. readVL(ByteBuffer byteBuffer)
9. readZeroTermStr(ByteBuffer bb)