package com.ruoyi.config;
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import java.math.BigDecimal;
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import java.time.Instant;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.TimeUnit;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.stereotype.Component;
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import com.alibaba.fastjson2.JSON;
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import com.alibaba.fastjson2.JSONArray;
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import com.alibaba.fastjson2.JSONObject;
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import com.ruoyi.device.simulator.BtsSimulatorStateStore;
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import com.ruoyi.device.model.DeviceWorkStatus;
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/** 将开发模拟器完整状态写入 Redis，主状态不设置普通 TTL。 */
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@Component
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public class RedisBtsSimulatorStateStore implements BtsSimulatorStateStore
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{
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static final String STATE_KEY = "dev:bts-simulator:state:v1";
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static final String RECENT_REQUESTS_KEY = "dev:bts-simulator:recent-requests:v1";
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private static final long RECENT_REQUESTS_TTL_HOURS = 1;
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private final RedisTemplate<Object, Object> redisTemplate;
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public RedisBtsSimulatorStateStore(RedisTemplate<Object, Object> redisTemplate)
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{
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this.redisTemplate = redisTemplate;
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}
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@Override
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public SimulatorState loadOrInitialize(SimulatorState defaultState)
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{
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Object stored = redisTemplate.opsForValue().get(STATE_KEY);
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if (stored != null) return parseState(stored);
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String initial = JSON.toJSONString(defaultState);
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if (Boolean.TRUE.equals(redisTemplate.opsForValue().setIfAbsent(STATE_KEY, initial))) return defaultState;
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stored = redisTemplate.opsForValue().get(STATE_KEY);
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if (stored == null) throw new IllegalStateException("BTS simulator state initialization lost in Redis");
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return parseState(stored);
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}
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@Override
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public void save(SimulatorState state)
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{
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redisTemplate.opsForValue().set(STATE_KEY, JSON.toJSONString(state));
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}
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@Override
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public List<RecentRequest> loadRecentRequests()
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{
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Object stored = redisTemplate.opsForValue().get(RECENT_REQUESTS_KEY);
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if (stored == null) return List.of();
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return List.copyOf(JSON.parseArray(stored.toString(), RecentRequest.class));
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}
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@Override
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public void saveRecentRequests(List<RecentRequest> requests)
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{
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redisTemplate.opsForValue().set(RECENT_REQUESTS_KEY, JSON.toJSONString(requests),
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RECENT_REQUESTS_TTL_HOURS, TimeUnit.HOURS);
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}
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@Override
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public void reset(SimulatorState defaultState)
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{
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redisTemplate.delete(RECENT_REQUESTS_KEY);
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save(defaultState);
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}
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private SimulatorState parseState(Object stored)
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{
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try
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{
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// 通用 RedisTemplate 在可执行包中可能将泛型数组恢复为 JSONObject，必须在存储边界逐层重建。
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JSONObject root = jsonObject(stored);
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Integer version = root.getInteger("version");
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if (version == null || version != CURRENT_VERSION)
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throw new IllegalStateException("Unsupported BTS simulator state version: " + version);
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List<DeviceState> devices = new ArrayList<>();
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requiredArray(root, "devices").forEach(item -> devices.add(deviceState(item)));
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List<CollectorState> collectors = new ArrayList<>();
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requiredArray(root, "collectors").forEach(item -> collectors.add(collectorState(item)));
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List<ChannelTombstone> tombstones = new ArrayList<>();
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requiredArray(root, "tombstones").forEach(item -> tombstones.add(channelTombstone(item)));
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return new SimulatorState(version, devices, collectors,
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requiredInteger(root, "nextDeviceId"), requiredInteger(root, "nextCollectorId"), tombstones);
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}
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catch (IllegalStateException exception)
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{
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throw exception;
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}
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catch (Exception exception)
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{
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throw new IllegalStateException("Invalid BTS simulator state in Redis", exception);
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}
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}
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private JSONObject jsonObject(Object value)
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{
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if (value instanceof JSONObject object) return object;
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if (value instanceof String text)
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{
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Object parsed = JSON.parse(text);
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if (parsed instanceof String nested) parsed = JSON.parse(nested);
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if (parsed instanceof JSONObject object) return object;
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return JSON.parseObject(JSON.toJSONString(parsed));
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}
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return JSON.parseObject(JSON.toJSONString(value));
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}
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private JSONArray requiredArray(JSONObject object, String field)
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{
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JSONArray array = object.getJSONArray(field);
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if (array == null) throw new IllegalStateException("Missing BTS simulator state field: " + field);
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return array;
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}
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private int requiredInteger(JSONObject object, String field)
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{
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Integer value = object.getInteger(field);
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if (value == null) throw new IllegalStateException("Missing BTS simulator state field: " + field);
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return value;
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}
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private DeviceState deviceState(Object value)
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{
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JSONObject object = jsonObject(value);
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List<ChannelState> channels = new ArrayList<>();
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requiredArray(object, "channels").forEach(item -> channels.add(channelState(item)));
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return new DeviceState(requiredInteger(object, "deviceId"), object.getString("ip"),
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object.getBooleanValue("online"), channels);
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}
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private CollectorState collectorState(Object value)
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{
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JSONObject object = jsonObject(value);
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int collectorId = requiredInteger(object, "collectorId");
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String deviceCode = object.getString("deviceCode");
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String ip = object.getString("ip");
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String mac = object.getString("mac");
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String name = object.getString("name");
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String manufacturer = object.getString("manufacturer");
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String model = object.getString("model");
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int channelCount = requiredInteger(object, "channelCount");
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boolean online = object.getBooleanValue("online");
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// Ticket04 状态只包含发现配置；首次恢复时以演示默认值补齐采样状态。
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if (!object.containsKey("sampleIntervalMs"))
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return new CollectorState(collectorId, deviceCode, ip, mac, name, manufacturer, model,
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channelCount, online);
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List<CollectorChannelState> channels = new ArrayList<>();
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requiredArray(object, "channels").forEach(item -> channels.add(collectorChannelState(item)));
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List<CollectorMeasurementRecord> history = new ArrayList<>();
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requiredArray(object, "history").forEach(item -> history.add(collectorMeasurementRecord(item)));
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List<CollectorRealtimeMeasurement> latestMeasurements = new ArrayList<>();
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JSONArray latest = object.getJSONArray("latestMeasurements");
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if (latest != null)
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latest.forEach(item -> latestMeasurements.add(collectorRealtimeMeasurement(item)));
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else
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latestMeasurements.addAll(latestMeasurementsFromLegacyHistory(history, channels));
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return new CollectorState(collectorId, deviceCode, ip, mac, name, manufacturer, model,
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channelCount, online, requiredInteger(object, "sampleIntervalMs"),
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requiredLong(object, "nextSequence"), optionalInstant(object, "lastSampledAt"),
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channels, latestMeasurements, history, collectorHistoryFaults(object.get("historyFaults")));
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}
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private CollectorChannelState collectorChannelState(Object value)
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{
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JSONObject object = jsonObject(value);
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List<CollectorMetricState> metrics = new ArrayList<>();
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requiredArray(object, "metrics").forEach(item -> metrics.add(collectorMetricState(item)));
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return new CollectorChannelState(object.getString("channelCode"), metrics);
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}
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private CollectorMetricState collectorMetricState(Object value)
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{
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JSONObject object = jsonObject(value);
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BigDecimal measurement = object.getBigDecimal("value");
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if (measurement == null) throw new IllegalStateException("Missing BTS simulator state field: value");
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return new CollectorMetricState(object.getString("metricCode"), measurement, object.getString("unit"));
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}
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private CollectorMeasurementRecord collectorMeasurementRecord(Object value)
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{
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JSONObject object = jsonObject(value);
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BigDecimal measurement = object.getBigDecimal("value");
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if (measurement == null) throw new IllegalStateException("Missing BTS simulator state field: value");
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return new CollectorMeasurementRecord(object.getString("adapterCode"), object.getString("collectorCode"),
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object.getString("channelCode"), requiredLong(object, "sequenceId"),
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requiredInstant(object, "deviceTime"), object.getString("deviceTimeRaw"),
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requiredInstant(object, "serverReceivedAt"), object.getString("metricCode"),
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measurement, object.getString("unit"));
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}
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private CollectorRealtimeMeasurement collectorRealtimeMeasurement(Object value)
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{
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JSONObject object = jsonObject(value);
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BigDecimal measurement = object.getBigDecimal("value");
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if (measurement == null) throw new IllegalStateException("Missing BTS simulator state field: value");
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return new CollectorRealtimeMeasurement(object.getString("adapterCode"), object.getString("collectorCode"),
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object.getString("channelCode"), requiredLong(object, "sequenceId"),
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requiredInstant(object, "deviceTime"), object.getString("deviceTimeRaw"),
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requiredInstant(object, "serverReceivedAt"), object.getString("metricCode"),
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measurement, object.getString("unit"));
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}
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/** 兼容 Ticket06 开发期间已写入但尚未拆分快照模型的状态。 */
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private List<CollectorRealtimeMeasurement> latestMeasurementsFromLegacyHistory(
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List<CollectorMeasurementRecord> history, List<CollectorChannelState> channels)
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{
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java.util.Set<String> configured = new java.util.HashSet<>();
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channels.forEach(channel -> channel.metrics().forEach(metric ->
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configured.add(channel.channelCode() + "\u0000" + metric.metricCode())));
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java.util.Map<String, CollectorRealtimeMeasurement> latest = new java.util.LinkedHashMap<>();
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for (CollectorMeasurementRecord record : history)
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{
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String key = record.channelCode() + "\u0000" + record.metricCode();
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if (configured.contains(key))
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latest.put(key, new CollectorRealtimeMeasurement(record.adapterCode(), record.collectorCode(),
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record.channelCode(), record.sequenceId(), record.deviceTime(), record.deviceTimeRaw(),
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record.serverReceivedAt(), record.metricCode(), record.value(), record.unit()));
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}
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return List.copyOf(latest.values());
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}
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private CollectorHistoryFaults collectorHistoryFaults(Object value)
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{
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if (value == null) return CollectorHistoryFaults.none();
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JSONObject object = jsonObject(value);
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List<Long> missing = new ArrayList<>();
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JSONArray values = object.getJSONArray("missingSequences");
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if (values != null) values.forEach(item -> missing.add(Long.valueOf(item.toString())));
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return new CollectorHistoryFaults(missing, object.getLong("duplicateSequence"),
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object.getLong("conflictingSequence"), object.getBooleanValue("outOfOrder"));
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}
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private ChannelState channelState(Object value)
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{
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JSONObject object = jsonObject(value);
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String workStatus = object.getString("workStatus");
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if (workStatus == null) throw new IllegalStateException("Missing BTS simulator state field: workStatus");
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return new ChannelState(requiredInteger(object, "channelId"), object.getBooleanValue("online"),
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DeviceWorkStatus.valueOf(workStatus));
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}
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private ChannelTombstone channelTombstone(Object value)
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{
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JSONObject object = jsonObject(value);
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return new ChannelTombstone(requiredInteger(object, "deviceId"), object.getString("ip"),
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requiredInteger(object, "channelId"), requiredInteger(object, "remainingDiscoveries"));
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}
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private long requiredLong(JSONObject object, String field)
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{
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Long value = object.getLong(field);
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if (value == null) throw new IllegalStateException("Missing BTS simulator state field: " + field);
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return value;
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}
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private Instant requiredInstant(JSONObject object, String field)
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{
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Instant value = optionalInstant(object, field);
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if (value == null) throw new IllegalStateException("Missing BTS simulator state field: " + field);
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return value;
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}
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private Instant optionalInstant(JSONObject object, String field)
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{
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String value = object.getString(field);
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return value == null ? null : Instant.parse(value);
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}
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}
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