| // |
| // ======================================================================== |
| // Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.spdy.generator; |
| |
| import java.nio.ByteBuffer; |
| |
| import org.eclipse.jetty.io.ByteBufferPool; |
| import org.eclipse.jetty.spdy.api.SPDY; |
| import org.eclipse.jetty.spdy.frames.ControlFrame; |
| import org.eclipse.jetty.spdy.frames.GoAwayFrame; |
| import org.eclipse.jetty.util.BufferUtil; |
| |
| public class GoAwayGenerator extends ControlFrameGenerator |
| { |
| public GoAwayGenerator(ByteBufferPool bufferPool) |
| { |
| super(bufferPool); |
| } |
| |
| @Override |
| public ByteBuffer generate(ControlFrame frame) |
| { |
| GoAwayFrame goAway = (GoAwayFrame)frame; |
| |
| int frameBodyLength = 8; |
| int totalLength = ControlFrame.HEADER_LENGTH + frameBodyLength; |
| ByteBuffer buffer = getByteBufferPool().acquire(totalLength, Generator.useDirectBuffers); |
| BufferUtil.clearToFill(buffer); |
| generateControlFrameHeader(goAway, frameBodyLength, buffer); |
| |
| buffer.putInt(goAway.getLastStreamId() & 0x7F_FF_FF_FF); |
| writeStatusCode(goAway, buffer); |
| |
| buffer.flip(); |
| return buffer; |
| } |
| |
| private void writeStatusCode(GoAwayFrame goAway, ByteBuffer buffer) |
| { |
| switch (goAway.getVersion()) |
| { |
| case SPDY.V2: |
| break; |
| case SPDY.V3: |
| buffer.putInt(goAway.getStatusCode()); |
| break; |
| default: |
| throw new IllegalStateException(); |
| } |
| } |
| } |