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/*
* Copyright 2021 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 io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.traccar.BaseProtocolEncoder;
import org.traccar.Protocol;
import org.traccar.model.Command;
import java.nio.charset.StandardCharsets;
public class TopinProtocolEncoder extends BaseProtocolEncoder {
public TopinProtocolEncoder(Protocol protocol) {
super(protocol);
}
private ByteBuf encodeContent(int type, ByteBuf content) {
ByteBuf buf = Unpooled.buffer();
buf.writeByte(0x78);
buf.writeByte(0x78);
buf.writeByte(1 + content.readableBytes()); // message length
buf.writeByte(type);
buf.writeBytes(content);
content.release();
buf.writeByte('\r');
buf.writeByte('\n');
return buf;
}
@Override
protected Object encodeCommand(Command command) {
ByteBuf content = Unpooled.buffer();
switch (command.getType()) {
case Command.TYPE_SOS_NUMBER:
content.writeCharSequence(command.getString(Command.KEY_PHONE), StandardCharsets.US_ASCII);
return encodeContent(TopinProtocolDecoder.MSG_SOS_NUMBER, content);
default:
return null;
}
}
}
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