package org.openslx.dnbd3;

import java.nio.ByteBuffer;

public class DNBD3Header {

    public static final int ERROR_FILE_NOT_FOUND = 1;
    public static final int ERROR_IMAGE_ALREADY_EXISTS = 2;
    public static final int ERROR_CONFIG_FILE_PERMISSIONS = 3;
    public static final int ERROR_IMAGE_NOT_FOUND = 4;
    public static final int ERROR_RID = 5;
    public static final int ERROR_IMAGE_IN_USE = 6;
    public static final int ERROR_UNKNOWN = 10;

    private int cmd;
    private int size;
    private int error;

    public DNBD3Header(int cmd, int size, int error) {
        this.cmd = cmd;
        this.size = size;
        this.error = error;
    }

    public DNBD3Header(byte[] bytes) {
        ByteBuffer bb = ByteBuffer.wrap(bytes);
        this.cmd = bb.getInt();
        this.size = bb.getInt();
        this.error = bb.getInt();
    }

    public DNBD3Header() {

    }

    public byte[] toByteArray() {
        ByteBuffer bb = ByteBuffer.allocate(12);
        bb.putInt(cmd);
        bb.putInt(size);
        bb.putInt(error);
        return bb.array();
    }

    public void fromByteArray(byte[] bytes) {
        ByteBuffer bb = ByteBuffer.wrap(bytes);
        this.cmd = bb.getInt();
        this.size = bb.getInt();
        this.error = bb.getInt();
    }

    public int getCmd() {
        return cmd;
    }

    public void setCmd(int cmd) {
        this.cmd = cmd;
    }

    public int getSize() {
        return size;
    }

    public void setSize(int size) {
        this.size = size;
    }

    public int getError() {
        return error;
    }

    public void setError(int error) {
        this.error = error;
    }

}