| // |
| // ======================================================================== |
| // 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.http2.generator; |
| |
| import java.nio.ByteBuffer; |
| |
| import org.eclipse.jetty.http2.Flags; |
| import org.eclipse.jetty.http2.frames.Frame; |
| import org.eclipse.jetty.http2.frames.FrameType; |
| import org.eclipse.jetty.http2.frames.PingFrame; |
| import org.eclipse.jetty.io.ByteBufferPool; |
| import org.eclipse.jetty.util.BufferUtil; |
| |
| public class PingGenerator extends FrameGenerator |
| { |
| public PingGenerator(HeaderGenerator headerGenerator) |
| { |
| super(headerGenerator); |
| } |
| |
| @Override |
| public void generate(ByteBufferPool.Lease lease, Frame frame) |
| { |
| PingFrame pingFrame = (PingFrame)frame; |
| generatePing(lease, pingFrame.getPayload(), pingFrame.isReply()); |
| } |
| |
| public void generatePing(ByteBufferPool.Lease lease, byte[] payload, boolean reply) |
| { |
| if (payload.length != PingFrame.PING_LENGTH) |
| throw new IllegalArgumentException("Invalid payload length: " + payload.length); |
| |
| ByteBuffer header = generateHeader(lease, FrameType.PING, PingFrame.PING_LENGTH, reply ? Flags.ACK : Flags.NONE, 0); |
| |
| header.put(payload); |
| |
| BufferUtil.flipToFlush(header, 0); |
| lease.append(header, true); |
| } |
| } |