Java ByteBuffer to Int getUnsignedInt(ByteBuffer buffer)

Description

Read an unsigned integer from the current position in the buffer, incrementing the position by 4 bytes

License

Open Source License

Return

The integer read, as a long to avoid signedness

Declaration

public static long getUnsignedInt(ByteBuffer buffer) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.nio.ByteBuffer;

import java.util.*;

public class Main {
    /**/*from   w w w.j a v  a2  s.  c  om*/
     * Read an unsigned integer from the current position in the buffer,
     * incrementing the position by 4 bytes
     *
     * @return The integer read, as a long to avoid signedness
     */
    public static long getUnsignedInt(ByteBuffer buffer) {
        return buffer.getInt() & 0xffffffffL;
    }

    /**
     * Read an unsigned integer from the given position without modifying
     * the buffers position
     *
     * @param index the index from which to read the integer
     * @return The integer read, as a long to avoid signedness
     */
    public static long getUnsignedInt(ByteBuffer buffer, int index) {
        return buffer.getInt(index) & 0xffffffffL;
    }

    public static int getInt(Properties props, String name) {
        if (props.containsKey(name)) {
            return getInt(props, name, -1);
        }
        throw new IllegalArgumentException("Missing required property '" + name + "'");
    }

    public static int getInt(Properties props, String name, int defaultValue) {
        return getIntInRange(props, name, defaultValue, Integer.MIN_VALUE, Integer.MAX_VALUE);
    }

    public static int getIntInRange(Properties props, String name, int defaultValue, int min, int max) {
        int v = defaultValue;
        if (props.containsKey(name)) {
            v = Integer.valueOf(props.getProperty(name));
        }
        if (v >= min && v <= max) {
            return v;
        }
        throw new IllegalArgumentException(name + " has value " + v + " which is not in the range");
    }
}

Related

1. getUnsignedByte(ByteBuffer bb)
2. getUnsignedByte(ByteBuffer buffer)
3. getUnsignedInt(ByteBuffer bb)
4. getUnsignedInt(ByteBuffer buffer)
5. getUnsignedInt(ByteBuffer buffer)
6. getUnsignedInt16LSBMSB(ByteBuffer byteBuffer)
7. getUnsignedLong(ByteBuffer buf)
8. getUnsignedLong(final ByteBuffer src)