com.sun.grizzly.websockets.ClosingFrame Maven / Gradle / Ivy

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/*
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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package com.sun.grizzly.websockets;

import java.io.UnsupportedEncodingException;

public class ClosingFrame extends DataFrame {
    public static final byte[] EMPTY_BYTES = new byte[0];
    private int code;
    private String reason;

    public ClosingFrame() {
        code = -1;
        setType(FrameType.CLOSING);
    }

    public ClosingFrame(int code, String reason) {
        this.code = code;
        this.reason = reason;
        setType(FrameType.CLOSING);
    }

    public int getCode() {
        return code;
    }

    public String getReason() {
        return reason;
    }

    @Override
    public void setPayload(byte[] bytes) {
        if (bytes.length > 0) {
            code = (int) convert(bytes, 0, 2);
            if (bytes.length > 2) {
                try {
                    reason = new String(bytes, 2, bytes.length - 2, "UTF-8");
                } catch (UnsupportedEncodingException e) {
                    throw new FramingException(e.getMessage(), e);
                }
            }
        }
    }

    @Override
    public byte[] getBinaryPayload() {
        try {
            if (code == -1) {
                return EMPTY_BYTES;
            }

            final byte[] bytes = toArray(code);
            final byte[] reasonBytes = reason == null ? EMPTY_BYTES : reason.getBytes("UTF-8");
            final byte[] frameBytes = new byte[2 + reasonBytes.length];
            System.arraycopy(bytes, bytes.length - 2, frameBytes, 0, 2);
            System.arraycopy(reasonBytes, 0, frameBytes, 2, reasonBytes.length);

            return frameBytes;
        } catch (UnsupportedEncodingException e) {
            throw new FramingException(e.getMessage(), e);
        }
    }
}