package com.dji.sample.manage.handler;
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import com.dji.sample.component.mqtt.model.TopicStateReceiver;
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import com.dji.sample.manage.model.enums.StateDataEnum;
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import com.dji.sample.manage.model.receiver.DevicePayloadReceiver;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.JsonNode;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Qualifier;
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import org.springframework.stereotype.Service;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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/**
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* @author sean
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* @version 0.3
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* @date 2022/2/21
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*/
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@Service
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public class StatePayloadHandler extends AbstractStateTopicHandler {
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protected StatePayloadHandler(@Autowired @Qualifier("stateLiveCapacityHandler") AbstractStateTopicHandler handler) {
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super(handler);
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}
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@Override
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public TopicStateReceiver handleState(JsonNode dataNode, TopicStateReceiver stateReceiver, String sn) throws JsonProcessingException {
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String name = dataNode.fieldNames().next();
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JsonNode childNode = dataNode.findPath(name);
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// Determine if it is payload data based on name.
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if (name.equals(StateDataEnum.PAYLOADS.getDesc())) {
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List<DevicePayloadReceiver> payloadsList = new ArrayList<>();
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Iterator<JsonNode> payloadsNode = childNode.elements();
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while (payloadsNode.hasNext()) {
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DevicePayloadReceiver payloadReceiver = mapper.treeToValue(
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payloadsNode.next(), DevicePayloadReceiver.class);
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payloadReceiver.setDeviceSn(sn);
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payloadsList.add(payloadReceiver);
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}
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if (payloadsList.isEmpty()) {
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DevicePayloadReceiver payloadReceiver = new DevicePayloadReceiver();
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payloadReceiver.setDeviceSn(sn);
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payloadsList.add(payloadReceiver);
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}
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stateReceiver.setData(payloadsList);
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return stateReceiver;
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}
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return handler.handleState(dataNode, stateReceiver, sn);
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}
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}
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