copy Char Buffer - Java java.nio

Java examples for java.nio:CharBuffer

Description

copy Char Buffer

Demo Code

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//package com.java2s;

public class Main {
    public static java.nio.CharBuffer copyCharBuffer(
            java.nio.CharBuffer data) {
        if (data == null) {
            return null;
        }
        java.nio.CharBuffer buf = createDirectCharBuffer(convertCharBufferToArray(data));
        return buf;
    }

    public static java.nio.CharBuffer createDirectCharBuffer(char[] data) {
        if (data == null) {
            return null;
        }
        java.nio.CharBuffer buf = java.nio.ByteBuffer
                .allocateDirect((Character.SIZE / 8) * data.length)
                .order(java.nio.ByteOrder.nativeOrder()).asCharBuffer();
        buf.clear();
        buf.put(data);
        buf.flip();
        return buf;
    }

    public static char[] convertCharBufferToArray(java.nio.CharBuffer buf) {
        if (buf.hasArray()) {
            return buf.array();
        } else {
            buf.rewind();
            char[] array = new char[buf.remaining()];
            int index = 0;
            while (buf.hasRemaining()) {
                array[index++] = buf.get();
            }
            return array;
        }
    }
}

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