com.nmote.ems.PortAddressingIE.java Source code

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Here is the source code for com.nmote.ems.PortAddressingIE.java

Source

/*
 * Copyright (c) Nmote d.o.o. 2003-2015. All rights reserved.
 * See LICENSE.txt for licensing information.
 */

package com.nmote.ems;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import org.apache.commons.lang3.builder.ToStringBuilder;

/**
 * PortAddressingIE
 */
public class PortAddressingIE extends IE {

    private static final long serialVersionUID = 1L;

    public PortAddressingIE(int identifier) {
        super(identifier);
        if (identifier == 4) {
            eightBit = true;
        } else if (identifier == 5) {
            eightBit = false;
        } else {
            throw new IllegalArgumentException();
        }
    }

    public int getDestinationPort() {
        return destinationPort;
    }

    @Override
    public byte getIdentifier() {
        return (byte) (eightBit ? 4 : 5);
    }

    @Override
    public int getLength() {
        return eightBit ? 2 : 4;
    }

    public int getOriginatorPort() {
        return originatorPort;
    }

    @Override
    public void load(InputStream in) throws IOException {
        if (eightBit) {
            setDestinationPort(readAndThrowEOF(in));
            setOriginatorPort(readAndThrowEOF(in));
        } else {
            setDestinationPort(read16AndThrowEOF(in));
            setOriginatorPort(read16AndThrowEOF(in));
        }
    }

    @Override
    public void save(OutputStream out) throws IOException {
        if (eightBit) {
            out.write(destinationPort);
            out.write(originatorPort);
        } else {
            write16(out, destinationPort);
            write16(out, originatorPort);
        }
    }

    public void setDestinationPort(int i) {
        if (i < 0 || i > 65535) {
            throw new IllegalArgumentException();
        }
        destinationPort = i;
        eightBit = destinationPort <= 255 && originatorPort <= 255;
    }

    public void setOriginatorPort(int i) {
        if (i < 0 || i > 65535) {
            throw new IllegalArgumentException();
        }
        originatorPort = i;
        eightBit = destinationPort <= 255 && originatorPort <= 255;
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this).append("dst", destinationPort).append("org", originatorPort).toString();
    }

    private int originatorPort;
    private int destinationPort;
    private boolean eightBit;
}