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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 com.fasterxml.jackson.annotation.JsonProperty;
import io.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.Context;
import org.traccar.NetworkMessage;
import org.traccar.Protocol;
import javax.json.Json;
import javax.json.JsonObject;
import java.io.StringReader;
import java.net.SocketAddress;
public class StbProtocolDecoder extends BaseProtocolDecoder {
public StbProtocolDecoder(Protocol protocol) {
super(protocol);
}
public static class Response {
@JsonProperty("msgType")
private int type;
@JsonProperty("devId")
private String deviceId;
@JsonProperty("result")
private int result;
@JsonProperty("txnNo")
private String transaction;
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
JsonObject root = Json.createReader(new StringReader((String) msg)).readObject();
Response response = new Response();
response.type = root.getInt("msgType") + 1;
response.deviceId = root.getString("devId");
response.result = 1;
response.transaction = root.getString("txnNo");
if (channel != null) {
channel.writeAndFlush(new NetworkMessage(
Context.getObjectMapper().writeValueAsString(response), remoteAddress));
}
return null;
}
}
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