/* * Copyright 2016 Anton Tananaev (anton@traccar.org) * * 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.traccar.protocol; import java.nio.charset.StandardCharsets; import org.jboss.netty.buffer.ChannelBuffer; import org.jboss.netty.buffer.ChannelBuffers; import org.traccar.BaseProtocolEncoder; import org.traccar.helper.Log; import org.traccar.model.Command; public class GranitProtocolEncoder extends BaseProtocolEncoder { @Override protected Object encodeCommand(Command command) { String commandString = ""; switch (command.getType()) { case Command.TYPE_IDENTIFICATION: commandString = "BB+IDNT"; break; case Command.TYPE_REBOOT_DEVICE: commandString = "BB+RESET"; break; case Command.TYPE_POSITION_SINGLE: commandString = "BB+RRCD"; break; default: Log.warning(new UnsupportedOperationException(command.getType())); return null; } if (!commandString.isEmpty()) { ChannelBuffer commandBuf = ChannelBuffers.dynamicBuffer(); commandBuf.writeBytes(commandString.getBytes(StandardCharsets.US_ASCII)); GranitProtocolDecoder.appendChecksum(commandBuf, commandString.length()); return commandBuf; } return null; } }