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/*
* Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
*
* 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.ByteOrder;
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) {
ChannelBuffer commandString;
switch (command.getType()) {
case Command.TYPE_IDENTIFICATION:
commandString = ChannelBuffers.directBuffer(ByteOrder.LITTLE_ENDIAN, 12);
commandString.writeBytes("BB+IDNT".getBytes(StandardCharsets.US_ASCII));
GranitProtocolDecoder.appendChecksum(commandString, 7);
return commandString;
case Command.TYPE_REBOOT_DEVICE:
commandString = ChannelBuffers.directBuffer(ByteOrder.LITTLE_ENDIAN, 13);
commandString.writeBytes("BB+RESET".getBytes(StandardCharsets.US_ASCII));
GranitProtocolDecoder.appendChecksum(commandString, 8);
return commandString;
case Command.TYPE_POSITION_SINGLE:
commandString = ChannelBuffers.directBuffer(ByteOrder.LITTLE_ENDIAN, 12);
commandString.writeBytes("BB+RRCD".getBytes(StandardCharsets.US_ASCII));
GranitProtocolDecoder.appendChecksum(commandString, 7);
return commandString;
default:
Log.warning(new UnsupportedOperationException(command.getType()));
break;
}
return null;
}
}
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