/** * Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior * University * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. You may obtain * a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. **/ package org.openflow.protocol; import org.jboss.netty.buffer.ChannelBuffer; import org.openflow.util.U16; /** * Represents an ofp_echo_request message * * @author Rob Sherwood (rob.sherwood@stanford.edu) */ public class OFEchoRequest extends OFMessage { public static int MINIMUM_LENGTH = 8; byte[] payload; public OFEchoRequest() { super(); this.type = OFType.ECHO_REQUEST; this.length = U16.t(MINIMUM_LENGTH); } @Override public void readFrom(ChannelBuffer bb) { super.readFrom(bb); int datalen = this.getLengthU() - MINIMUM_LENGTH; if (datalen > 0) { this.payload = new byte[datalen]; bb.readBytes(payload); } } /** * @return the payload */ public byte[] getPayload() { return payload; } /** * @param payload * the payload to set */ public void setPayload(byte[] payload) { this.payload = payload; } @Override public void writeTo(ChannelBuffer bb) { super.writeTo(bb); if (payload != null) bb.writeBytes(payload); } }