/*

 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import static java.nio.charset.StandardCharsets.UTF_8;

public class GoAwayFrame extends ErrorFrame {

    private final int lastStream;

    private final byte[] debugData;

    public static final int TYPE = 0x7;

    public GoAwayFrame(int lastStream, int errorCode) {

        this(lastStream, errorCode, new byte[0]);

    }

    public GoAwayFrame(int lastStream, int errorCode, byte[] debugData) {

        super(0, 0, errorCode);

        this.lastStream = lastStream;

        this.debugData = debugData.clone();

    }

    @Override

    public int type() {

        return TYPE;

    }

    @Override

    int length() {

        return 8 + debugData.length;

    }

    @Override

    public String toString() {

        return super.toString() + " Debugdata: " + new String(debugData, UTF_8);

    }

    public int getLastStream() {

        return this.lastStream;

    }

    public byte[] getDebugData() {

        return debugData.clone();

    }

}