yeg
2026-09-05 7259e265b9237286996b09da03038ea5a133e1e0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
package com.battery.device.simulator;
 
import java.io.IOException;
import java.io.StringReader;
import java.math.BigDecimal;
import java.time.Instant;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamReader;
import com.battery.device.api.model.DeviceWorkStatus;
import com.battery.device.api.model.DeviceConnectionStatus;
import com.battery.device.api.model.DeviceIdentity;
import com.battery.device.api.model.DeviceObservation;
import com.battery.device.api.model.DetectedChannel;
import com.battery.device.api.model.DetectedDeviceMetadata;
import com.battery.device.api.model.ChannelIdentity;
import com.battery.device.api.model.AdapterCapabilities;
import com.battery.device.api.DeviceObservationAdapter;
import com.battery.device.api.TestDataObservationAdapter;
import com.battery.device.simulator.BtsSimulatorStateStore;
import com.battery.device.simulator.BtsSimulatorStateStore.ChannelState;
import com.battery.device.simulator.BtsSimulatorStateStore.ChannelTombstone;
import com.battery.device.simulator.BtsSimulatorStateStore.CollectorChannelState;
import com.battery.device.simulator.BtsSimulatorStateStore.CollectorMetricState;
import com.battery.device.simulator.BtsSimulatorStateStore.CollectorRealtimeMeasurement;
import com.battery.device.simulator.BtsSimulatorStateStore.CollectorState;
import com.battery.device.simulator.BtsSimulatorStateStore.DeviceState;
import com.battery.device.simulator.BtsSimulatorStateStore.BtsDeviceProfile;
import com.battery.device.simulator.BtsSimulatorStateStore.RecentRequest;
import com.battery.device.simulator.BtsSimulatorStateStore.SimulatorState;
import com.battery.device.simulator.InMemoryBtsSimulatorStateStore;
import com.battery.device.simulator.DevelopmentCollectorSimulation;
import com.battery.device.simulator.DevelopmentCollectorSimulation.CollectorRealtimeSnapshot;
 
/** 提供由开发后端托管的临时只读 BTS 模拟端点。 */
public final class BtsDevelopmentSimulator implements TestDataObservationAdapter
{
    public static final String HOST = "127.0.0.1";
    public static final int DEFAULT_PORT = 15020;
    public static final String ADAPTER_CODE = "dev-sim";
    public static final String ADAPTER_NAME = "dev-sim BTS 模拟器";
    public static final int POLL_INTERVAL_MS = 5000;
    public static final String NEWARE_CT_4008T_5V6A_S1_F = "CT-4008T-5V6A-S1-F";
    public static final String NEWARE_CT_4008TN_5V12A_S1_F = "CT-4008Tn-5V12A-S1-F";
 
    private static final int MAX_CHANNEL_COUNT = 99;
    private static final int MAX_RECENT_REQUESTS = 20;
    private static final int TOMBSTONE_DISCOVERY_COUNT = 3;
 
    private final ScriptedBtsTcpSimulator simulator;
    private final BtsSimulatorStateStore stateStore;
    private SimulatorState state;
    private boolean running = true;
    private static final ZoneId DEVICE_ZONE = ZoneId.of("Asia/Hong_Kong");
    private static final DateTimeFormatter DEVICE_TIME = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS");
 
    @Override
    public String adapterCode()
    {
        return ADAPTER_CODE;
    }
 
    @Override
    public AdapterCapabilities capabilities()
    {
        return AdapterCapabilities.observeOnly();
    }
 
    /** 直接提供模拟器当前拓扑,供不需要 TCP/XML 的契约测试使用。 */
    @Override
    public synchronized List<DetectedChannel> discoverChannels()
    {
        List<DetectedChannel> result = new ArrayList<>();
        for (DeviceState device : state.devices())
        {
            BtsDeviceProfile profile = profileFor(device);
            for (ChannelState channel : device.channels())
            {
                ChannelIdentity identity = new ChannelIdentity(ADAPTER_CODE, profile.devtype(), device.deviceId(),
                        profile.subDeviceId(), channel.channelId());
                result.add(new DetectedChannel(identity, device.ip(), state.softwareAccessible() && device.online() && channel.online(),
                        new DetectedDeviceMetadata(profile.name(), profile.manufacturer(), profile.model(),
                                simulatorMac(profile.devtype(), device.deviceId()))));
            }
        }
        recordRequest("discover", ADAPTER_CODE, result.toString());
        return List.copyOf(result);
    }
 
    /** 直接提供模拟器观测;离线通道不保留上一次测量或工步事实。 */
    @Override
    public synchronized java.util.Map<ChannelIdentity, DeviceObservation> observe(
            java.util.Set<ChannelIdentity> channels)
    {
        if (channels == null || channels.isEmpty()) return java.util.Map.of();
        java.util.Map<ChannelIdentity, DeviceObservation> result = new java.util.LinkedHashMap<>();
        for (ChannelIdentity requested : channels) result.put(requested, observation(requested));
        recordRequest("observe", channels.toString(), result.toString());
        return java.util.Map.copyOf(result);
    }
 
    private DeviceObservation observation(ChannelIdentity requested)
    {
        DeviceState device = state.devices().stream().filter(item -> item.deviceId() == requested.devid())
                .findFirst().orElse(null);
        ChannelState channel = device == null ? null : device.channels().stream()
                .filter(item -> item.channelId() == requested.chlid()).findFirst().orElse(null);
        if (!state.softwareAccessible() || device == null || channel == null
                || !ADAPTER_CODE.equals(requested.adapterCode()) || !device.online() || !channel.online()
                || requested.devtype() != profileFor(device).devtype()
                || requested.subdevid() != profileFor(device).subDeviceId())
            return DeviceObservation.offline(requested, failureReason());
        return new DeviceObservation(new DeviceIdentity(ADAPTER_CODE, requested.devtype(), requested.devid(),
                requested.subdevid()), requested, DeviceConnectionStatus.ONLINE, channel.workStatus(),
                List.of(), null, java.util.Map.of(), null);
    }
 
    /** 启动仅监听 IPv4 本机回环地址的开发模拟器;传入 0 时由系统分配测试端口。 */
    public BtsDevelopmentSimulator(int port) throws IOException
    {
        this(port, new InMemoryBtsSimulatorStateStore());
    }
 
    /** 从长期状态恢复后再启动 TCP 服务,避免服务先暴露默认拓扑。 */
    public BtsDevelopmentSimulator(int port, BtsSimulatorStateStore stateStore) throws IOException
    {
        this.stateStore = stateStore;
        state = stateStore.loadOrInitialize(defaultState());
        validateRestoredState();
        simulator = ScriptedBtsTcpSimulator.responding(port, this::respond);
    }
 
    public int port()
    {
        return simulator.port();
    }
 
    /** 新增一台具有独立虚拟 IP 和通道数的开发设备。 */
    public synchronized int addDevice(String ip, int channelCount)
    {
        validateDeviceConfiguration(ip, channelCount, null);
        int deviceId = state.nextDeviceId();
        List<DeviceState> devices = new ArrayList<>(state.devices());
        devices.add(newDevice(deviceId, ip, BtsDeviceProfile.virtual(channelCount)));
        persist(new SimulatorState(BtsSimulatorStateStore.CURRENT_VERSION, devices, state.collectors(),
                deviceId + 1, state.nextCollectorId(), state.tombstones()));
        return deviceId;
    }
 
    /** 修改开发设备的虚拟地址、通道数和在线状态。 */
    public synchronized void updateDevice(int deviceId, String ip, int channelCount, boolean online)
    {
        DeviceState current = requireDevice(deviceId);
        validateDeviceConfiguration(ip, channelCount, deviceId);
        List<ChannelState> channels = new ArrayList<>(channelCount);
        for (int channelId = 1; channelId <= channelCount; channelId++)
        {
            channels.add(channelId <= current.channels().size()
                    ? current.channels().get(channelId - 1)
                    : new ChannelState(channelId, true, DeviceWorkStatus.STOPPED));
        }
        List<DeviceState> devices = replaceDevice(new DeviceState(deviceId, ip.trim(), online, channels,
                resizeProfile(current.profile(), channelCount)));
        List<ChannelTombstone> tombstones = new ArrayList<>(state.tombstones());
        for (int channelId = channelCount + 1; channelId <= current.channels().size(); channelId++)
            upsertTombstone(tombstones, current.deviceId(), current.ip(), channelId);
        tombstones.removeIf(item -> item.deviceId() == deviceId && item.channelId() <= channelCount);
        persist(new SimulatorState(state.version(), devices, state.collectors(), state.nextDeviceId(),
                state.nextCollectorId(), tombstones));
    }
 
    /** 使用现场确认的新威检测柜 profile 新增设备,型号之外的控制语义仍保持只读。 */
    public synchronized int addNewareDevice(String ip, String model)
    {
        BtsDeviceProfile profile = newareProfile(model);
        validateDeviceConfiguration(ip, profile.channelCount(), null);
        int deviceId = state.nextDeviceId();
        List<DeviceState> devices = new ArrayList<>(state.devices());
        devices.add(newDevice(deviceId, ip, profile));
        persist(new SimulatorState(state.version(), devices, state.collectors(), deviceId + 1,
                state.nextCollectorId(), state.tombstones()));
        return deviceId;
    }
 
    /** 将已有模拟设备切换为新威 profile,并按 profile 通道数调整拓扑。 */
    public synchronized void configureNewareProfile(int deviceId, String model)
    {
        DeviceState current = requireDevice(deviceId);
        BtsDeviceProfile profile = newareProfile(model);
        updateDeviceWithProfile(current, profile);
    }
 
    /** 删除指定开发设备;后续发现响应不再返回它。 */
    public synchronized void deleteDevice(int deviceId)
    {
        DeviceState removed = requireDevice(deviceId);
        List<DeviceState> devices = new ArrayList<>(state.devices());
        devices.removeIf(item -> item.deviceId() == deviceId);
        List<ChannelTombstone> tombstones = new ArrayList<>(state.tombstones());
        for (ChannelState channel : removed.channels())
        {
            upsertTombstone(tombstones, removed.deviceId(), removed.ip(), channel.channelId());
        }
        persist(new SimulatorState(state.version(), devices, state.collectors(), state.nextDeviceId(),
                state.nextCollectorId(), tombstones));
    }
 
    /** 修改指定开发设备的单个通道状态。 */
    public synchronized void updateChannel(int deviceId, int channelId, boolean online,
            DeviceWorkStatus workStatus)
    {
        requireControllableStatus(workStatus);
        DeviceState device = requireDevice(deviceId);
        if (channelId < 1 || channelId > device.channels().size())
            throw new IllegalArgumentException("channelId must be between 1 and " + device.channels().size());
        List<ChannelState> channels = new ArrayList<>(device.channels());
        channels.set(channelId - 1, new ChannelState(channelId, online, workStatus));
        persist(new SimulatorState(state.version(),
                replaceDevice(new DeviceState(deviceId, device.ip(), device.online(), channels, device.profile())), state.collectors(),
                state.nextDeviceId(), state.nextCollectorId(), state.tombstones()));
    }
 
    /** 新增一台与 BTS 检测柜拓扑隔离的开发采集器。 */
    public synchronized int addCollector(String ip, int channelCount)
    {
        validateCollectorConfiguration(ip, channelCount, null);
        int collectorId = state.nextCollectorId();
        List<CollectorState> collectors = new ArrayList<>(state.collectors());
        collectors.add(newCollector(collectorId, ip, channelCount));
        persist(new SimulatorState(state.version(), state.devices(), collectors, state.nextDeviceId(),
                collectorId + 1, state.tombstones()));
        return collectorId;
    }
 
    /** 修改开发采集器的虚拟地址、通道数和在线状态。 */
    public synchronized void updateCollector(int collectorId, String ip, int channelCount, boolean online)
    {
        validateCollectorConfiguration(ip, channelCount, collectorId);
        CollectorState current = requireCollector(collectorId);
        List<CollectorState> collectors = new ArrayList<>(state.collectors());
        collectors.replaceAll(item -> item.collectorId() == collectorId
                ? DevelopmentCollectorSimulation.resize(current, ip, channelCount, online, Instant.now())
                : item);
        persist(new SimulatorState(state.version(), state.devices(), collectors, state.nextDeviceId(),
                state.nextCollectorId(), state.tombstones()));
    }
 
    /** 删除指定开发采集器,不影响检测柜 TCP 发现结果。 */
    public synchronized void deleteCollector(int collectorId)
    {
        CollectorState collector = requireCollector(collectorId);
        List<CollectorState> collectors = new ArrayList<>(state.collectors());
        collectors.removeIf(item -> item.collectorId() == collectorId);
        SimulatorState next = new SimulatorState(state.version(), state.devices(), collectors, state.nextDeviceId(),
                state.nextCollectorId(), state.tombstones());
        persist(next);
    }
 
    /** 配置一个稳定 S 通道的固定或动态演示指标。 */
    public synchronized void configureCollectorChannel(int collectorId, String channelCode,
            List<CollectorMetricState> metrics)
    {
        CollectorState current = requireCollector(collectorId);
        replaceCollector(DevelopmentCollectorSimulation.configureChannel(current, channelCode, metrics));
    }
 
    /** 修改软件可访问性,不改变设备身份、在线配置或通道工作状态。 */
    public synchronized void setSoftwareAccessible(boolean accessible)
    {
        SimulatorState next = new SimulatorState(state.version(), state.devices(), state.collectors(),
                state.nextDeviceId(), state.nextCollectorId(), state.tombstones(), accessible, state.observationSequence());
        stateStore.save(next);
        state = next;
    }
 
    /** 批量修改设备在线事实,保留各通道工作状态。 */
    public synchronized void setAllDevicesPoweredOn(boolean poweredOn)
    {
        List<DeviceState> devices = state.devices().stream()
                .map(device -> new DeviceState(device.deviceId(), device.ip(), poweredOn, device.channels(), device.profile()))
                .toList();
        List<CollectorState> collectors = state.collectors().stream()
                .map(collector -> DevelopmentCollectorSimulation.resize(collector, collector.ip(),
                        collector.channelCount(), poweredOn, Instant.now())).toList();
        persist(new SimulatorState(state.version(), devices, collectors, state.nextDeviceId(),
                state.nextCollectorId(), state.tombstones()));
    }
 
    /** 修改采集器单个通道工作状态;不代表真实采集器控制能力。 */
    public synchronized void updateCollectorChannelStatus(int collectorId, String channelCode, DeviceWorkStatus status)
    {
        requireControllableStatus(status);
        replaceCollector(DevelopmentCollectorSimulation.configureStatus(requireCollector(collectorId), channelCode, status));
    }
 
    /** 返回固定的开发计划,不推进工步或生成历史。 */
    @Override
    public synchronized TestPlan testPlan(ChannelIdentity channel)
    {
        if (!canObserve(channel)) return null;
        return new TestPlan(1, 1, 1, List.of(new PlanRow("STEP", 1, 1, "恒流充电", 60d, 3.7d,
                requireDevice(channel.devid()).channels().get(channel.chlid() - 1).workStatus() == DeviceWorkStatus.FINISHED
                        ? "已完成" : "待执行", null, null)));
    }
 
    /** 请求当前检测柜测量;离线或无法观测时不返回缓存值。 */
    @Override
    public synchronized CabinetRealtime latestCabinet(ChannelIdentity channel)
    {
        CabinetRealtime result = canObserve(channel) ? cabinetMeasurement(channel) : null;
        recordRequest("cabinet-realtime", String.valueOf(channel),
                result == null ? failureReason() : result.toString());
        return result;
    }
 
    private CabinetRealtime cabinetMeasurement(ChannelIdentity identity)
    {
        DeviceState device = requireDevice(identity.devid());
        ChannelState channel = device.channels().get(identity.chlid() - 1);
        if (channel.workStatus() == DeviceWorkStatus.UNOBSERVABLE) return null;
        Instant now = Instant.now().truncatedTo(java.time.temporal.ChronoUnit.MILLIS);
        long sequence = nextObservationSequence();
        double wave = Math.sin((sequence + channel.channelId()) * 0.7d);
        BtsDeviceProfile profile = profileFor(device);
        double current = channel.workStatus() == DeviceWorkStatus.WORKING
                ? clamp(profile.currentMaxA().doubleValue() * (0.18d + wave * 0.02d),
                        profile.currentMinA().doubleValue(), profile.currentMaxA().doubleValue()) : 0d;
        double voltage = clamp(3.7d + wave * 0.01d, profile.voltageMinV().doubleValue(), profile.voltageMaxV().doubleValue());
        CabinetRealtime result = new CabinetRealtime(sequence, now, current, voltage, 1.2d, 4.44d,
                1, 1, "恒流充电", "cc", now, DEVICE_TIME.format(now.atZone(DEVICE_ZONE)), DEVICE_ZONE.getId());
        return result;
    }
 
    /** 请求采集器当前配置值;软件不可访问或设备离线时返回空测量。 */
    @Override
    public synchronized CollectorRealtime latestCollector(String collectorCode)
    {
        CollectorState collector = state.collectors().stream().filter(item -> item.deviceCode().equals(collectorCode))
                .findFirst().orElse(null);
        if (collector == null) return null;
        var snapshot = collectorRealtime(collector.collectorId());
        return new CollectorRealtime(snapshot.collectorCode(), snapshot.online(), snapshot.sampleIntervalMs(),
                snapshot.measurements().stream().map(item -> new CollectorMeasurement(item.channelCode(), item.sequenceId(),
                        item.deviceTime(), item.deviceTimeRaw(), item.serverReceivedAt(), item.metricCode(), item.value(),
                        item.unit())).toList(), DEVICE_ZONE.getId());
    }
 
    /** 模拟器不提供历史工步统计。 */
    @Override
    public List<StepRecord> stepRecords(ChannelIdentity channel) { return List.of(); }
 
    /** 模拟器不提供历史循环统计。 */
    @Override
    public List<CycleRecord> cycleRecords(ChannelIdentity channel) { return List.of(); }
 
    /** 使用后端正常持久化周期,不提供开发倍速。 */
    @Override
    public long persistenceIntervalMillis(ChannelIdentity channel) { return 60000L; }
 
    private boolean canObserve(ChannelIdentity channel)
    {
        // 完整来源身份限定数据归属;不可访问和离线只改变观测结果。
        return channel != null && observation(channel).connectionStatus() == DeviceConnectionStatus.ONLINE
                && observation(channel).workStatus() != DeviceWorkStatus.UNOBSERVABLE;
    }
 
    /** 请求采集器当前观测,读取状态页面本身不会触发此请求。 */
    public synchronized CollectorRealtimeSnapshot collectorRealtime(int collectorId)
    {
        CollectorState collector = requireCollector(collectorId);
        boolean available = state.softwareAccessible() && collector.online();
        if (available)
        {
            collector = DevelopmentCollectorSimulation.sample(collector, Instant.now(), nextObservationSequence());
            replaceCollector(collector);
        }
        var result = new CollectorRealtimeSnapshot(collector.deviceCode(), available, collector.sampleIntervalMs(),
                available ? collector.latestMeasurements() : List.of());
        recordRequest("collector-realtime", collector.deviceCode(), available ? result.toString() : failureReason());
        return result;
    }
 
    private String failureReason()
    {
        return state.softwareAccessible() ? "UNOBSERVABLE" : "SOFTWARE_UNAVAILABLE";
    }
 
    private long nextObservationSequence()
    {
        long sequence = Math.max(state.observationSequence() + 1, Instant.now().toEpochMilli());
        SimulatorState next = new SimulatorState(state.version(), state.devices(), state.collectors(),
                state.nextDeviceId(), state.nextCollectorId(), state.tombstones(), state.softwareAccessible(), sequence);
        stateStore.save(next);
        state = next;
        return sequence;
    }
 
    /** 返回控制页需要的运行状态快照。 */
    public synchronized StateSnapshot snapshot()
    {
        List<DeviceSnapshot> deviceSnapshots = state.devices().stream()
                .map(device -> new DeviceSnapshot(device.deviceId(), device.ip(), device.online(), device.profile(),
                        device.channels().stream()
                                .map(channel -> new ChannelSnapshot(channel.channelId(), channel.online(),
                                        channel.workStatus()))
                                .toList()))
                .toList();
        List<CollectorSnapshot> collectorSnapshots = state.collectors().stream()
                .map(collector -> new CollectorSnapshot(collector.collectorId(), collector.deviceCode(),
                        collector.ip(), collector.mac(), collector.name(), collector.manufacturer(),
                        collector.model(), collector.channelCount(), collector.online(), collector.sampleIntervalMs(),
                        collector.channels(), state.softwareAccessible() && collector.online() ? collector.latestMeasurements() : List.of()))
                .toList();
        return new StateSnapshot(running, state.softwareAccessible(), HOST + ":" + port(), deviceSnapshots, collectorSnapshots,
                stateStore.loadRecentRequests());
    }
 
    /** 人工恢复默认拓扑;这是正常运行中唯一清空长期模拟状态的入口。 */
    public synchronized void reset()
    {
        SimulatorState defaultState = defaultState();
        stateStore.reset(defaultState);
        state = defaultState;
    }
 
    private SimulatorState defaultState()
    {
        return new SimulatorState(BtsSimulatorStateStore.CURRENT_VERSION,
                List.of(newDevice(1, "127.0.0.2", 4)),
                List.of(newCollector(1, "127.0.1.2", 4)), 2, 2, List.of());
    }
 
    private DeviceState newDevice(int deviceId, String ip, int channelCount)
    {
        return newDevice(deviceId, ip, BtsDeviceProfile.virtual(channelCount));
    }
 
    private DeviceState newDevice(int deviceId, String ip, BtsDeviceProfile profile)
    {
        List<ChannelState> channels = new ArrayList<>(profile.channelCount());
        for (int channelId = 1; channelId <= profile.channelCount(); channelId++)
            channels.add(new ChannelState(channelId, true, DeviceWorkStatus.STOPPED));
        return new DeviceState(deviceId, ip.trim(), true, channels, profile);
    }
 
    private CollectorState newCollector(int collectorId, String ip, int channelCount)
    {
        return new CollectorState(collectorId, "dev-sim-collector-" + collectorId,
                ip.trim(), simulatorCollectorMac(collectorId), "dev-sim 采集器 " + collectorId,
                "开发模拟器", "Virtual Collector", channelCount, true);
    }
 
    private void replaceCollector(CollectorState replacement)
    {
        List<CollectorState> collectors = new ArrayList<>(state.collectors());
        collectors.replaceAll(item -> item.collectorId() == replacement.collectorId() ? replacement : item);
        persist(new SimulatorState(state.version(), state.devices(), collectors, state.nextDeviceId(),
                state.nextCollectorId(), state.tombstones()));
    }
 
    private synchronized String respond(String request)
    {
        String command = readCommand(request);
        String response = state.softwareAccessible() ? switch (command)
        {
            case "getdevinfo" -> deviceInfoResponse();
            case "inquire" -> observationResponse(request);
            default -> "<bts version=\"1.0\"><cmd>error</cmd></bts>";
        } : "<bts version=\"1.0\"><cmd>error</cmd></bts>";
        recordRequest(command, request, state.softwareAccessible() ? response : "SOFTWARE_UNAVAILABLE");
        return response;
    }
 
    private void recordRequest(String command, String request, String response)
    {
        List<RecentRequest> recentRequests = new ArrayList<>(stateStore.loadRecentRequests());
        recentRequests.add(0, new RecentRequest(Instant.now(), command, request, response));
        if (recentRequests.size() > MAX_RECENT_REQUESTS)
            recentRequests = new ArrayList<>(recentRequests.subList(0, MAX_RECENT_REQUESTS));
        stateStore.saveRecentRequests(recentRequests);
    }
 
    private String readCommand(String request)
    {
        try
        {
            XMLInputFactory factory = XMLInputFactory.newFactory();
            factory.setProperty(XMLInputFactory.SUPPORT_DTD, false);
            factory.setProperty("javax.xml.stream.isSupportingExternalEntities", false);
            XMLStreamReader reader = factory.createXMLStreamReader(new StringReader(request));
            while (reader.hasNext())
            {
                if (reader.next() == XMLStreamConstants.START_ELEMENT && "cmd".equals(reader.getLocalName()))
                    return reader.getElementText().trim();
            }
        }
        catch (Exception exception)
        {
            throw new IllegalArgumentException("Invalid BTS request XML", exception);
        }
        throw new IllegalArgumentException("BTS request does not contain cmd");
    }
 
    private synchronized String deviceInfoResponse()
    {
        int channelCount = state.devices().stream().mapToInt(device -> device.channels().size()).sum()
                + state.tombstones().size();
        StringBuilder response = new StringBuilder("<bts version=\"1.0\"><cmd>getdevinfo_resp</cmd>")
                .append("<serverip count=\"0\"/><middle count=\"").append(channelCount).append("\">");
        for (DeviceState device : state.devices())
        {
            for (ChannelState channel : device.channels())
            {
                boolean available = device.online() && channel.online();
                appendDiscoveredChannel(response, device.deviceId(), device.ip(), channel.channelId(), available);
            }
        }
        List<ChannelTombstone> remaining = new ArrayList<>();
        for (ChannelTombstone tombstone : state.tombstones())
        {
            appendDiscoveredChannel(response, tombstone.deviceId(), tombstone.ip(), tombstone.channelId(), false);
            if (tombstone.remainingDiscoveries() > 1)
                remaining.add(new ChannelTombstone(tombstone.deviceId(), tombstone.ip(), tombstone.channelId(),
                        tombstone.remainingDiscoveries() - 1));
        }
        if (!remaining.equals(state.tombstones()))
            persist(new SimulatorState(state.version(), state.devices(), state.collectors(), state.nextDeviceId(),
                    state.nextCollectorId(), remaining));
        return response.append("</middle></bts>").toString();
    }
 
    private void appendDiscoveredChannel(StringBuilder response, int deviceId, String ip, int channelId,
            boolean available)
    {
        // 展示元数据是开发模拟器扩展,不代表真实 BTS 协议必然提供这些属性。
        DeviceState device = state.devices().stream().filter(item -> item.deviceId() == deviceId).findFirst().orElse(null);
        BtsDeviceProfile profile = device == null ? BtsDeviceProfile.virtual(channelId) : profileFor(device);
        response.append("<channel ip=\"").append(ip).append("\" devtype=\"").append(profile.devtype())
                .append("\" devid=\"").append(deviceId).append("\" subdevid=\"").append(profile.subDeviceId())
                .append("\" Channelid=\"").append(channelId).append("\" name=\"").append(profile.name())
                .append("\" manufacturer=\"").append(profile.manufacturer()).append("\" model=\"")
                .append(profile.model()).append("\" serialNumber=\"").append(profile.serialNumber())
                .append("\" firmwareVersion=\"").append(profile.firmwareVersion()).append("\" mac=\"")
                .append(simulatorMac(profile.devtype(), deviceId)).append("\">")
                .append(available).append("</channel>");
    }
 
    private synchronized String observationResponse(String request)
    {
        java.util.Set<String> requested = requestedChannels(request);
        List<ObservedChannel> available = new ArrayList<>();
        for (DeviceState device : state.devices())
            for (ChannelState channel : device.channels())
                if (device.online() && channel.online() && channel.workStatus() != DeviceWorkStatus.UNOBSERVABLE
                        && requested.contains(profileFor(device).devtype() + ":" + device.deviceId()
                                + ":" + profileFor(device).subDeviceId() + ":" + channel.channelId()))
                    available.add(new ObservedChannel(device.deviceId(), channel));
 
        StringBuilder response = new StringBuilder("<bts version=\"1.0\"><cmd>inquire_resp</cmd><list count=\"")
                .append(available.size()).append("\">");
        for (ObservedChannel observed : available)
        {
            ChannelState channel = observed.channel();
            DeviceState device = requireDevice(observed.deviceId());
            BtsDeviceProfile profile = profileFor(device);
            CabinetRealtime measurement = cabinetMeasurement(new ChannelIdentity(ADAPTER_CODE, profile.devtype(),
                    device.deviceId(), profile.subDeviceId(), channel.channelId()));
            double current = measurement.currentA(), voltage = measurement.voltageV();
            double capacity = measurement.capacityAh(), energy = measurement.energyWh();
            int cycleNo = measurement.cycleNo(), stepNo = measurement.stepNo();
            String stepType = measurement.stepType();
            response.append("<inquire dev=\"").append(profile.devtype()).append('-').append(observed.deviceId())
                    .append('-').append(profile.subDeviceId()).append('-').append(channel.channelId())
                    .append("-0\" cycle_id=\"").append(cycleNo).append("\" step_id=\"").append(stepNo)
                    .append("\" step_type=\"").append(stepType).append("\" workstatus=\"")
                    .append(toBtsWorkStatus(channel.workStatus()))
                    .append("\" current=\"").append(decimal(current)).append("\" voltage=\"")
                    .append(decimal(voltage)).append("\" capacity=\"").append(decimal(capacity))
                    .append("\" energy=\"").append(decimal(energy)).append("\" totaltime=\"")
                    .append(0).append("\" relativetime=\"").append(0)
                    .append("\" open_or_close=\"0\" log_code=\"0\">")
                    // 模拟器返回当前设备方案,供统一观测模型展示;不代表真实 BTS 的完整方案字段。
                    .append("<plan><step step_no=\"").append(stepNo).append("\" step_type=\"")
                    .append(stepType).append("\" name=\"").append(stepType).append("\"/></plan></inquire>");
        }
        return response.append("</list></bts>").toString();
    }
 
    private java.util.Set<String> requestedChannels(String request)
    {
        java.util.Set<String> channels = new java.util.HashSet<>();
        try
        {
            XMLInputFactory factory = XMLInputFactory.newFactory();
            factory.setProperty(XMLInputFactory.SUPPORT_DTD, false);
            factory.setProperty("javax.xml.stream.isSupportingExternalEntities", false);
            XMLStreamReader reader = factory.createXMLStreamReader(new StringReader(request));
            while (reader.hasNext())
            {
                if (reader.next() == XMLStreamConstants.START_ELEMENT && "inquire".equals(reader.getLocalName()))
                {
                    String devid = reader.getAttributeValue(null, "devid");
                    String chlid = reader.getAttributeValue(null, "chlid");
                    String devtype = reader.getAttributeValue(null, "devtype");
                    String subdevid = reader.getAttributeValue(null, "subdevid");
                    if (devtype != null && devid != null && subdevid != null && chlid != null)
                        channels.add(devtype + ":" + devid + ":" + subdevid + ":" + chlid);
                }
            }
            return channels;
        }
        catch (Exception exception)
        {
            throw new IllegalArgumentException("Invalid BTS inquire XML", exception);
        }
    }
 
    private BtsDeviceProfile profileFor(DeviceState device)
    {
        return device.profile() == null ? BtsDeviceProfile.virtual(device.channels().size()) : device.profile();
    }
 
    private BtsDeviceProfile resizeProfile(BtsDeviceProfile profile, int channelCount)
    {
        return new BtsDeviceProfile(profile.devtype(), profile.subDeviceId(), profile.name(), profile.manufacturer(),
                profile.model(), profile.serialNumber(), profile.firmwareVersion(), channelCount,
                profile.currentMinA(), profile.currentMaxA(), profile.voltageMinV(), profile.voltageMaxV(),
                profile.sampleIntervalMs());
    }
 
    private void updateDeviceWithProfile(DeviceState current, BtsDeviceProfile profile)
    {
        int channelCount = profile.channelCount();
        List<ChannelState> channels = new ArrayList<>(channelCount);
        for (int channelId = 1; channelId <= channelCount; channelId++)
            channels.add(channelId <= current.channels().size() ? current.channels().get(channelId - 1)
                    : new ChannelState(channelId, true, DeviceWorkStatus.STOPPED));
        List<DeviceState> devices = replaceDevice(new DeviceState(current.deviceId(), current.ip(), current.online(),
                channels, profile));
        List<ChannelTombstone> tombstones = new ArrayList<>(state.tombstones());
        for (int channelId = channelCount + 1; channelId <= current.channels().size(); channelId++)
            upsertTombstone(tombstones, current.deviceId(), current.ip(), channelId);
        tombstones.removeIf(item -> item.deviceId() == current.deviceId() && item.channelId() <= channelCount);
        persist(new SimulatorState(state.version(), devices, state.collectors(), state.nextDeviceId(),
                state.nextCollectorId(), tombstones));
    }
 
    private BtsDeviceProfile newareProfile(String model)
    {
        if (NEWARE_CT_4008T_5V6A_S1_F.equals(model))
            return new BtsDeviceProfile(22, 1, "新威 CT-4008T", "新威", model, "SIM-CT4008T-5V6A",
                    "BTS7.5.4", 8, new BigDecimal("-6.000"), new BigDecimal("6.000"), BigDecimal.ZERO,
                    new BigDecimal("5.000"), 100);
        if (NEWARE_CT_4008TN_5V12A_S1_F.equals(model))
            return new BtsDeviceProfile(22, 1, "新威 CT-4008Tn", "新威", model, "SIM-CT4008TN-5V12A",
                    "BTS8.0", 8, new BigDecimal("-12.000"), new BigDecimal("12.000"), BigDecimal.ZERO,
                    new BigDecimal("5.000"), 100);
        throw new IllegalArgumentException("Unsupported Neware simulator model: " + model);
    }
 
    private double clamp(double value, double minimum, double maximum)
    {
        return Math.max(minimum, Math.min(maximum, value));
    }
 
    private String decimal(double value)
    {
        return String.format(java.util.Locale.ROOT, "%.3f", value);
    }
 
    private String toBtsWorkStatus(DeviceWorkStatus status)
    {
        return switch (status)
        {
            case STOPPED -> "stop";
            case WORKING -> "working";
            case PAUSED -> "pause";
            case FINISHED -> "finish";
            case PROTECTED -> "protect";
            default -> throw new IllegalArgumentException("Unsupported simulator work status: " + status);
        };
    }
 
    private void validateDeviceConfiguration(String ip, int channelCount, Integer currentDeviceId)
    {
        if (!isIpv4(ip)) throw new IllegalArgumentException("Simulator device IP must be a valid IPv4 address");
        if (channelCount < 1 || channelCount > MAX_CHANNEL_COUNT)
            throw new IllegalArgumentException("channelCount must be between 1 and " + MAX_CHANNEL_COUNT);
        boolean duplicate = state.devices().stream()
                .anyMatch(device -> device.ip().equals(ip.trim())
                        && device.deviceId() != (currentDeviceId == null ? -1 : currentDeviceId));
        duplicate = duplicate || state.collectors().stream().anyMatch(collector -> collector.ip().equals(ip.trim()));
        if (duplicate) throw new IllegalArgumentException("Simulator device IP must be unique");
    }
 
    private void validateCollectorConfiguration(String ip, int channelCount, Integer currentCollectorId)
    {
        if (!isIpv4(ip)) throw new IllegalArgumentException("Simulator collector IP must be a valid IPv4 address");
        if (channelCount < 1 || channelCount > MAX_CHANNEL_COUNT)
            throw new IllegalArgumentException("channelCount must be between 1 and " + MAX_CHANNEL_COUNT);
        boolean duplicate = state.collectors().stream()
                .anyMatch(collector -> collector.ip().equals(ip.trim())
                        && collector.collectorId() != (currentCollectorId == null ? -1 : currentCollectorId));
        duplicate = duplicate || state.devices().stream().anyMatch(device -> device.ip().equals(ip.trim()));
        if (duplicate) throw new IllegalArgumentException("Simulator collector IP must be unique");
    }
 
    private boolean isIpv4(String ip)
    {
        if (ip == null) return false;
        String[] parts = ip.trim().split("\\.", -1);
        if (parts.length != 4) return false;
        for (String part : parts)
        {
            try
            {
                int value = Integer.parseInt(part);
                if (part.isEmpty() || value < 0 || value > 255) return false;
            }
            catch (NumberFormatException exception)
            {
                return false;
            }
        }
        return true;
    }
 
    private DeviceState requireDevice(int deviceId)
    {
        return state.devices().stream().filter(item -> item.deviceId() == deviceId).findFirst()
                .orElseThrow(() -> new IllegalArgumentException("Unknown simulator device: " + deviceId));
    }
 
    private CollectorState requireCollector(int collectorId)
    {
        return state.collectors().stream().filter(item -> item.collectorId() == collectorId).findFirst()
                .orElseThrow(() -> new IllegalArgumentException("Unknown simulator collector: " + collectorId));
    }
 
    private List<DeviceState> replaceDevice(DeviceState replacement)
    {
        List<DeviceState> devices = new ArrayList<>(state.devices());
        devices.replaceAll(item -> item.deviceId() == replacement.deviceId() ? replacement : item);
        return devices;
    }
 
    private void upsertTombstone(List<ChannelTombstone> tombstones, int deviceId, String ip, int channelId)
    {
        tombstones.removeIf(item -> item.deviceId() == deviceId && item.channelId() == channelId);
        tombstones.add(new ChannelTombstone(deviceId, ip, channelId, TOMBSTONE_DISCOVERY_COUNT));
    }
 
    private void persist(SimulatorState nextState)
    {
        // 写穿失败时保留当前内存副本,避免控制页显示未持久化状态。
        SimulatorState configured = new SimulatorState(nextState.version(), nextState.devices(), nextState.collectors(),
                nextState.nextDeviceId(), nextState.nextCollectorId(), nextState.tombstones(),
                state.softwareAccessible(), state.observationSequence());
        stateStore.save(configured);
        state = configured;
    }
 
    private String simulatorMac(int devtype, int devid)
    {
        return String.format("02:44:%02X:%02X:%02X:%02X",
                (devtype >>> 8) & 0xFF, devtype & 0xFF, (devid >>> 8) & 0xFF, devid & 0xFF);
    }
 
    private String simulatorCollectorMac(int collectorId)
    {
        return String.format("02:43:00:00:%02X:%02X", (collectorId >>> 8) & 0xFF, collectorId & 0xFF);
    }
 
    private void requireControllableStatus(DeviceWorkStatus status)
    {
        if (status == null || (status != DeviceWorkStatus.STOPPED && status != DeviceWorkStatus.WORKING
                && status != DeviceWorkStatus.PAUSED && status != DeviceWorkStatus.FINISHED
                && status != DeviceWorkStatus.PROTECTED && status != DeviceWorkStatus.UNOBSERVABLE))
            throw new IllegalArgumentException("Unsupported simulator work status");
    }
 
    private void validateRestoredState()
    {
        java.util.Set<Integer> deviceIds = new java.util.HashSet<>();
        java.util.Set<Integer> collectorIds = new java.util.HashSet<>();
        java.util.Set<String> ips = new java.util.HashSet<>();
        int maximumDeviceId = 0;
        for (DeviceState device : state.devices())
        {
            if (device.deviceId() < 1 || !deviceIds.add(device.deviceId()) || !isIpv4(device.ip())
                    || !ips.add(device.ip()) || device.channels().isEmpty()
                    || device.channels().size() > MAX_CHANNEL_COUNT)
                throw new IllegalStateException("Invalid BTS simulator device state in Redis");
            if (profileFor(device).channelCount() != device.channels().size())
                throw new IllegalStateException("BTS simulator device profile channel count does not match topology");
            maximumDeviceId = Math.max(maximumDeviceId, device.deviceId());
            for (int index = 0; index < device.channels().size(); index++)
            {
                ChannelState channel = device.channels().get(index);
                if (channel.channelId() != index + 1)
                    throw new IllegalStateException("Invalid BTS simulator channel state in Redis");
                requireControllableStatus(channel.workStatus());
            }
        }
        int maximumCollectorId = 0;
        for (CollectorState collector : state.collectors())
        {
            if (collector.collectorId() < 1 || !collectorIds.add(collector.collectorId())
                    || !isIpv4(collector.ip()) || !ips.add(collector.ip())
                    || collector.channelCount() < 1 || collector.channelCount() > MAX_CHANNEL_COUNT)
                throw new IllegalStateException("Invalid BTS simulator collector state in Redis");
            DevelopmentCollectorSimulation.validate(collector);
            maximumCollectorId = Math.max(maximumCollectorId, collector.collectorId());
        }
        java.util.Set<String> tombstoneIds = new java.util.HashSet<>();
        boolean invalidTombstone = state.tombstones().stream().anyMatch(item -> item.deviceId() < 1
                || !isIpv4(item.ip()) || item.channelId() < 1 || item.channelId() > MAX_CHANNEL_COUNT
                || item.remainingDiscoveries() < 1 || item.remainingDiscoveries() > TOMBSTONE_DISCOVERY_COUNT
                || !tombstoneIds.add(item.deviceId() + ":" + item.channelId()));
        if (state.nextDeviceId() <= maximumDeviceId || state.nextCollectorId() <= maximumCollectorId
                || invalidTombstone)
            throw new IllegalStateException("Invalid BTS simulator numbering or tombstone state in Redis");
    }
 
    @Override
    public synchronized void close()
    {
        running = false;
        try
        {
            simulator.close();
        }
        catch (Exception exception)
        {
            throw new IllegalStateException("关闭开发模拟器失败", exception);
        }
    }
 
    private record ObservedChannel(int deviceId, ChannelState channel) { }
 
    public record StateSnapshot(boolean running, boolean softwareAccessible, String listenAddress, List<DeviceSnapshot> devices,
            List<CollectorSnapshot> collectors, List<RecentRequest> recentRequests) { }
 
    public record DeviceSnapshot(int deviceId, String ip, boolean online, BtsDeviceProfile profile,
            List<ChannelSnapshot> channels) { }
 
    public record ChannelSnapshot(int channelId, boolean online, DeviceWorkStatus workStatus) { }
 
    public record CollectorSnapshot(int collectorId, String deviceCode, String ip, String mac, String name,
            String manufacturer, String model, int channelCount, boolean online, int sampleIntervalMs,
            List<CollectorChannelState> channels, List<CollectorRealtimeMeasurement> latestMeasurements)
    {
        public CollectorSnapshot
        {
            channels = List.copyOf(channels);
            latestMeasurements = List.copyOf(latestMeasurements);
        }
    }
 
}