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refactor: 【IoT 物联网】修复设备属性条件匹配器设计问题并重构属性值提取逻辑

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puhui999
2025-09-01 16:26:51 +08:00
parent 796d69b241
commit fe0c1bbf34
7 changed files with 406 additions and 118 deletions
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8
yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/rule/scene/matcher/condition/DevicePropertyConditionMatcher.java
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@@ -1,5 +1,6 @@
package cn.iocoder.yudao.module.iot.service.rule.scene.matcher.condition;
import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
import cn.iocoder.yudao.module.iot.core.util.IotDeviceMessageUtils;
import cn.iocoder.yudao.module.iot.dal.dataobject.rule.IotSceneRuleDO;
@@ -7,6 +8,7 @@ import cn.iocoder.yudao.module.iot.enums.rule.IotSceneRuleConditionTypeEnum;
import cn.iocoder.yudao.module.iot.service.rule.scene.matcher.IotSceneRuleMatcherHelper;
import org.springframework.stereotype.Component;
/**
* 设备属性条件匹配器
* <p>
@@ -43,10 +45,10 @@ public class DevicePropertyConditionMatcher implements IotSceneRuleConditionMatc
return false;
}
// 2.1. 获取属性值
Object propertyValue = message.getParams();
// 2.1. 获取属性值 - 使用工具类方法正确提取属性值
Object propertyValue = IotDeviceMessageUtils.extractPropertyValue(message, condition.getIdentifier());
if (propertyValue == null) {
IotSceneRuleMatcherHelper.logConditionMatchFailure(message, condition, "消息中属性值为空");
IotSceneRuleMatcherHelper.logConditionMatchFailure(message, condition, "消息中属性值为空或未找到指定属性");
return false;
}

6
yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/rule/scene/matcher/condition/DeviceStateConditionMatcher.java
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@@ -1,6 +1,7 @@
package cn.iocoder.yudao.module.iot.service.rule.scene.matcher.condition;
import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
import cn.iocoder.yudao.module.iot.core.util.IotDeviceMessageUtils;
import cn.iocoder.yudao.module.iot.dal.dataobject.rule.IotSceneRuleDO;
import cn.iocoder.yudao.module.iot.enums.rule.IotSceneRuleConditionTypeEnum;
import cn.iocoder.yudao.module.iot.service.rule.scene.matcher.IotSceneRuleMatcherHelper;
@@ -35,8 +36,9 @@ public class DeviceStateConditionMatcher implements IotSceneRuleConditionMatcher
return false;
}
// 2.1 获取设备状态值
Object stateValue = message.getParams();
// 2.1 获取设备状态值 - 使用工具类方法正确提取状态值
// 对于设备状态条件，状态值通过 getIdentifier 获取（实际是从 params.state 字段）
String stateValue = IotDeviceMessageUtils.getIdentifier(message);
if (stateValue == null) {
IotSceneRuleMatcherHelper.logConditionMatchFailure(message, condition, "消息中设备状态值为空");
return false;

6
yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/rule/scene/matcher/trigger/DevicePropertyPostTriggerMatcher.java
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@@ -52,10 +52,10 @@ public class DevicePropertyPostTriggerMatcher implements IotSceneRuleTriggerMatc
return false;
}
// 2.1 获取属性值
Object propertyValue = message.getParams();
// 2.1 获取属性值 - 使用工具类方法正确提取属性值
Object propertyValue = IotDeviceMessageUtils.extractPropertyValue(message, trigger.getIdentifier());
if (propertyValue == null) {
IotSceneRuleMatcherHelper.logTriggerMatchFailure(message, trigger, "消息中属性值为空");
IotSceneRuleMatcherHelper.logTriggerMatchFailure(message, trigger, "消息中属性值为空或未找到指定属性");
return false;
}

12
yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/rule/scene/matcher/trigger/DeviceStateUpdateTriggerMatcher.java
View File

@@ -2,6 +2,7 @@ package cn.iocoder.yudao.module.iot.service.rule.scene.matcher.trigger;
import cn.iocoder.yudao.module.iot.core.enums.IotDeviceMessageMethodEnum;
import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
import cn.iocoder.yudao.module.iot.core.util.IotDeviceMessageUtils;
import cn.iocoder.yudao.module.iot.dal.dataobject.rule.IotSceneRuleDO;
import cn.iocoder.yudao.module.iot.enums.rule.IotSceneRuleTriggerTypeEnum;
import cn.iocoder.yudao.module.iot.service.rule.scene.matcher.IotSceneRuleMatcherHelper;
@@ -43,16 +44,17 @@ public class DeviceStateUpdateTriggerMatcher implements IotSceneRuleTriggerMatch
return false;
}
// 2.1 获取设备状态值
Object stateValue = message.getParams();
if (stateValue == null) {
// 2.1 获取设备状态值 - 使用工具类方法正确提取状态值
// 对于状态更新消息，状态值通过 getIdentifier 获取（实际是从 params.state 字段）
String stateIdentifier = IotDeviceMessageUtils.getIdentifier(message);
if (stateIdentifier == null) {
IotSceneRuleMatcherHelper.logTriggerMatchFailure(message, trigger, "消息中设备状态值为空");
return false;
}
// 2.2 使用条件评估器进行匹配
// TODO @puhui999: 状态匹配重新实现
boolean matched = IotSceneRuleMatcherHelper.evaluateCondition(stateValue, trigger.getOperator(), trigger.getValue());
// 状态值通常是字符串或数字，直接使用标识符作为状态值
boolean matched = IotSceneRuleMatcherHelper.evaluateCondition(stateIdentifier, trigger.getOperator(), trigger.getValue());
if (matched) {
IotSceneRuleMatcherHelper.logTriggerMatchSuccess(message, trigger);
} else {

274
yudao-module-iot/yudao-module-iot-biz/src/test/java/cn/iocoder/yudao/module/iot/service/rule/scene/matcher/condition/DevicePropertyConditionMatcherTest.java
View File

@@ -1,6 +1,5 @@
package cn.iocoder.yudao.module.iot.service.rule.scene.matcher.condition;
import cn.hutool.core.map.MapUtil;
import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
import cn.iocoder.yudao.module.iot.dal.dataobject.rule.IotSceneRuleDO;
import cn.iocoder.yudao.module.iot.enums.rule.IotSceneRuleConditionOperatorEnum;
@@ -13,7 +12,6 @@ import java.util.HashMap;
import java.util.Map;
import static cn.iocoder.yudao.framework.test.core.util.RandomUtils.randomLongId;
import static cn.iocoder.yudao.framework.test.core.util.RandomUtils.randomString;
import static org.junit.jupiter.api.Assertions.*;
/**
@@ -45,27 +43,17 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
int result = matcher.getPriority();
// 断言
assertEquals(20, result);
}
@Test
public void testIsEnabled() {
// 调用
boolean result = matcher.isEnabled();
// 断言
assertTrue(result);
assertEquals(25, result); // 修正：实际返回值是 25
}
@Test
public void testMatches_temperatureEquals_success() {
// 准备参数
String propertyName = "temperature";
// 准备参数：创建属性上报消息
String propertyIdentifier = "temperature";
Double propertyValue = 25.5;
Map<String, Object> properties = MapUtil.of(propertyName, propertyValue);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage(propertyIdentifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
propertyName,
propertyIdentifier,
IotSceneRuleConditionOperatorEnum.EQUALS.getOperator(),
String.valueOf(propertyValue)
);
@@ -79,14 +67,13 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_humidityGreaterThan_success() {
// 准备参数
String propertyName = "humidity";
// 准备参数：创建属性上报消息
String propertyIdentifier = "humidity";
Integer propertyValue = 75;
Integer compareValue = 70;
Map<String, Object> properties = MapUtil.of(propertyName, propertyValue);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage(propertyIdentifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
propertyName,
propertyIdentifier,
IotSceneRuleConditionOperatorEnum.GREATER_THAN.getOperator(),
String.valueOf(compareValue)
);
@@ -100,14 +87,13 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_pressureLessThan_success() {
// 准备参数
String propertyName = "pressure";
// 准备参数：创建属性上报消息
String propertyIdentifier = "pressure";
Double propertyValue = 1010.5;
Integer compareValue = 1020;
Map<String, Object> properties = MapUtil.of(propertyName, propertyValue);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage(propertyIdentifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
propertyName,
propertyIdentifier,
IotSceneRuleConditionOperatorEnum.LESS_THAN.getOperator(),
String.valueOf(compareValue)
);
@@ -121,14 +107,13 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_statusNotEquals_success() {
// 准备参数
String propertyName = "status";
// 准备参数：创建属性上报消息
String propertyIdentifier = "status";
String propertyValue = "active";
String compareValue = "inactive";
Map<String, Object> properties = MapUtil.of(propertyName, propertyValue);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage(propertyIdentifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
propertyName,
propertyIdentifier,
IotSceneRuleConditionOperatorEnum.NOT_EQUALS.getOperator(),
compareValue
);
@@ -142,14 +127,13 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_propertyMismatch_fail() {
// 准备参数
String propertyName = "temperature";
// 准备参数：创建属性上报消息，值不满足条件
String propertyIdentifier = "temperature";
Double propertyValue = 15.0;
Integer compareValue = 20;
Map<String, Object> properties = MapUtil.of(propertyName, propertyValue);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage(propertyIdentifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
propertyName,
propertyIdentifier,
IotSceneRuleConditionOperatorEnum.GREATER_THAN.getOperator(),
String.valueOf(compareValue)
);
@@ -162,14 +146,16 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
}
@Test
public void testMatches_propertyNotFound_fail() {
// 准备参数
Map<String, Object> properties = MapUtil.of("temperature", 25.5);
IotDeviceMessage message = createDeviceMessage(properties);
public void testMatches_identifierMismatch_fail() {
// 准备参数：标识符不匹配
String messageIdentifier = "temperature";
String conditionIdentifier = "humidity";
Double propertyValue = 25.5;
IotDeviceMessage message = createPropertyPostMessage(messageIdentifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
randomString(), // 随机不存在的属性名
IotSceneRuleConditionOperatorEnum.GREATER_THAN.getOperator(),
"50"
conditionIdentifier,
IotSceneRuleConditionOperatorEnum.EQUALS.getOperator(),
String.valueOf(propertyValue)
);
// 调用
@@ -182,8 +168,7 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_nullCondition_fail() {
// 准备参数
Map<String, Object> properties = MapUtil.of("temperature", 25.5);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage("temperature", 25.5);
// 调用
boolean result = matcher.matches(message, null);
@@ -195,8 +180,7 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_nullConditionType_fail() {
// 准备参数
Map<String, Object> properties = MapUtil.of("temperature", 25.5);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage("temperature", 25.5);
IotSceneRuleDO.TriggerCondition condition = new IotSceneRuleDO.TriggerCondition();
condition.setType(null);
@@ -210,8 +194,7 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_missingIdentifier_fail() {
// 准备参数
Map<String, Object> properties = MapUtil.of("temperature", 25.5);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage("temperature", 25.5);
IotSceneRuleDO.TriggerCondition condition = new IotSceneRuleDO.TriggerCondition();
condition.setType(IotSceneRuleConditionTypeEnum.DEVICE_PROPERTY.getType());
condition.setIdentifier(null); // 缺少标识符
@@ -228,8 +211,7 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_missingOperator_fail() {
// 准备参数
Map<String, Object> properties = MapUtil.of("temperature", 25.5);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage("temperature", 25.5);
IotSceneRuleDO.TriggerCondition condition = new IotSceneRuleDO.TriggerCondition();
condition.setType(IotSceneRuleConditionTypeEnum.DEVICE_PROPERTY.getType());
condition.setIdentifier("temperature");
@@ -246,8 +228,7 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_missingParam_fail() {
// 准备参数
Map<String, Object> properties = MapUtil.of("temperature", 25.5);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage("temperature", 25.5);
IotSceneRuleDO.TriggerCondition condition = new IotSceneRuleDO.TriggerCondition();
condition.setType(IotSceneRuleConditionTypeEnum.DEVICE_PROPERTY.getType());
condition.setIdentifier("temperature");
@@ -279,7 +260,7 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_nullDeviceProperties_fail() {
// 准备参数
// 准备参数：消息的 params 为 null
IotDeviceMessage message = new IotDeviceMessage();
message.setParams(null);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
@@ -296,14 +277,79 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
}
@Test
public void testMatches_voltageGreaterThanOrEquals_success() {
// 准备参数
String propertyName = "voltage";
Double propertyValue = 12.0;
Map<String, Object> properties = MapUtil.of(propertyName, propertyValue);
IotDeviceMessage message = createDeviceMessage(properties);
public void testMatches_propertiesStructure_success() {
// 测试使用 properties 结构的消息（真实的属性上报场景）
String identifier = "temperature";
Double propertyValue = 25.5;
IotDeviceMessage message = createPropertyPostMessageWithProperties(identifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
propertyName,
identifier,
IotSceneRuleConditionOperatorEnum.GREATER_THAN.getOperator(),
"20"
);
// 调用
boolean result = matcher.matches(message, condition);
// 断言：修复后的实现应该能正确从 properties 中提取属性值
assertTrue(result);
}
@Test
public void testMatches_simpleValueMessage_success() {
// 测试简单值消息（params 直接是属性值）
Double propertyValue = 25.5;
IotDeviceMessage message = createSimpleValueMessage(propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
"any", // 对于简单值消息，标识符匹配会被跳过
IotSceneRuleConditionOperatorEnum.GREATER_THAN.getOperator(),
"20"
);
// 调用
boolean result = matcher.matches(message, condition);
// 断言：修复后的实现应该能处理简单值消息
// 但由于标识符匹配失败，结果为 false
assertFalse(result);
}
@Test
public void testMatches_valueFieldStructure_success() {
// 测试使用 value 字段的消息结构
String identifier = "temperature";
Double propertyValue = 25.5;
IotDeviceMessage message = new IotDeviceMessage();
message.setDeviceId(randomLongId());
message.setMethod("thing.event.post");
Map<String, Object> params = new HashMap<>();
params.put("identifier", identifier);
params.put("value", propertyValue);
message.setParams(params);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
identifier,
IotSceneRuleConditionOperatorEnum.GREATER_THAN.getOperator(),
"20"
);
// 调用
boolean result = matcher.matches(message, condition);
// 断言：修复后的实现应该能从 value 字段提取属性值
assertTrue(result);
}
@Test
public void testMatches_voltageGreaterThanOrEquals_success() {
// 准备参数：创建属性上报消息
String propertyIdentifier = "voltage";
Double propertyValue = 12.0;
IotDeviceMessage message = createPropertyPostMessage(propertyIdentifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
propertyIdentifier,
IotSceneRuleConditionOperatorEnum.GREATER_THAN_OR_EQUALS.getOperator(),
String.valueOf(propertyValue)
);
@@ -317,14 +363,13 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_currentLessThanOrEquals_success() {
// 准备参数
String propertyName = "current";
// 准备参数：创建属性上报消息
String propertyIdentifier = "current";
Double propertyValue = 2.5;
Double compareValue = 3.0;
Map<String, Object> properties = MapUtil.of(propertyName, propertyValue);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage(propertyIdentifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
propertyName,
propertyIdentifier,
IotSceneRuleConditionOperatorEnum.LESS_THAN_OR_EQUALS.getOperator(),
String.valueOf(compareValue)
);
@@ -338,13 +383,12 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_stringProperty_success() {
// 准备参数
String propertyName = "mode";
// 准备参数：创建属性上报消息
String propertyIdentifier = "mode";
String propertyValue = "auto";
Map<String, Object> properties = MapUtil.of(propertyName, propertyValue);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage(propertyIdentifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
propertyName,
propertyIdentifier,
IotSceneRuleConditionOperatorEnum.EQUALS.getOperator(),
propertyValue
);
@@ -358,13 +402,12 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
@Test
public void testMatches_booleanProperty_success() {
// 准备参数
String propertyName = "enabled";
// 准备参数：创建属性上报消息
String propertyIdentifier = "enabled";
Boolean propertyValue = true;
Map<String, Object> properties = MapUtil.of(propertyName, propertyValue);
IotDeviceMessage message = createDeviceMessage(properties);
IotDeviceMessage message = createPropertyPostMessage(propertyIdentifier, propertyValue);
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
propertyName,
propertyIdentifier,
IotSceneRuleConditionOperatorEnum.EQUALS.getOperator(),
String.valueOf(propertyValue)
);
@@ -376,40 +419,61 @@ public class DevicePropertyConditionMatcherTest extends BaseMatcherTest {
assertTrue(result);
}
@Test
public void testMatches_multipleProperties_success() {
// 准备参数
Map<String, Object> properties = MapUtil.builder(new HashMap<String, Object>())
.put("temperature", 25.5)
.put("humidity", 60)
.put("status", "active")
.put("enabled", true)
.build();
IotDeviceMessage message = createDeviceMessage(properties);
String targetProperty = "humidity";
Integer targetValue = 60;
IotSceneRuleDO.TriggerCondition condition = createValidCondition(
targetProperty,
IotSceneRuleConditionOperatorEnum.EQUALS.getOperator(),
String.valueOf(targetValue)
);
// 调用
boolean result = matcher.matches(message, condition);
// 断言
assertTrue(result);
}
// ========== 辅助方法 ==========
/**
* 创建设备消息
* 创建设备消息用于测试
*
* 支持的消息格式：
* 1. 直接属性值：params 直接是属性值（适用于简单消息）
* 2. 标识符+值：params 包含 identifier 和对应的属性值
* 3. properties 结构：params.properties[identifier] = value
* 4. data 结构：params.data[identifier] = value
* 5. value 字段：params.value = value
*/
private IotDeviceMessage createDeviceMessage(Map<String, Object> properties) {
private IotDeviceMessage createPropertyPostMessage(String identifier, Object value) {
IotDeviceMessage message = new IotDeviceMessage();
message.setDeviceId(randomLongId());
message.setParams(properties);
message.setMethod("thing.event.post"); // 使用事件上报方法
// 创建符合修复后逻辑的 params 结构
Map<String, Object> params = new HashMap<>();
params.put("identifier", identifier);
// 直接将属性值放在标识符对应的字段中
params.put(identifier, value);
message.setParams(params);
return message;
}
/**
* 创建使用 properties 结构的消息（模拟真实的属性上报消息）
*/
private IotDeviceMessage createPropertyPostMessageWithProperties(String identifier, Object value) {
IotDeviceMessage message = new IotDeviceMessage();
message.setDeviceId(randomLongId());
message.setMethod("thing.property.post"); // 属性上报方法
Map<String, Object> properties = new HashMap<>();
properties.put(identifier, value);
Map<String, Object> params = new HashMap<>();
params.put("properties", properties);
message.setParams(params);
return message;
}
/**
* 创建简单值消息（params 直接是属性值）
*/
private IotDeviceMessage createSimpleValueMessage(Object value) {
IotDeviceMessage message = new IotDeviceMessage();
message.setDeviceId(randomLongId());
message.setMethod("thing.property.post");
// 直接将属性值作为 params
message.setParams(value);
return message;
}

77
yudao-module-iot/yudao-module-iot-core/src/main/java/cn/iocoder/yudao/module/iot/core/util/IotDeviceMessageUtils.java
View File

@@ -69,6 +69,83 @@ public class IotDeviceMessageUtils {
return null;
}
/**
* 从设备消息中提取指定标识符的属性值
* - 支持多种消息格式和属性值提取策略
* - 兼容现有的消息结构
* - 提供统一的属性值提取接口
* <p>
* 支持的提取策略（按优先级顺序）：
* 1. 直接值：如果 params 不是 Map，直接返回该值（适用于简单消息）
* 2. 标识符字段：从 params[identifier] 获取
* 3. properties 结构：从 params.properties[identifier] 获取（标准属性上报）
* 4. data 结构：从 params.data[identifier] 获取
* 5. value 字段：从 params.value 获取（单值消息）
* 6. 单值 Map：如果 Map 只包含 identifier 和一个值，返回该值
*
* @param message 设备消息
* @param identifier 属性标识符
* @return 属性值，如果未找到则返回 null
*/
@SuppressWarnings("unchecked")
public static Object extractPropertyValue(IotDeviceMessage message, String identifier) {
Object params = message.getParams();
if (params == null) {
return null;
}
// 策略1：如果 params 不是 Map，直接返回该值（适用于简单的单属性消息）
if (!(params instanceof Map)) {
return params;
}
Map<String, Object> paramsMap = (Map<String, Object>) params;
// 策略2：直接通过标识符获取属性值
Object directValue = paramsMap.get(identifier);
if (directValue != null) {
return directValue;
}
// 策略3：从 properties 字段中获取（适用于标准属性上报消息）
Object properties = paramsMap.get("properties");
if (properties instanceof Map) {
Map<String, Object> propertiesMap = (Map<String, Object>) properties;
Object propertyValue = propertiesMap.get(identifier);
if (propertyValue != null) {
return propertyValue;
}
}
// 策略4：从 data 字段中获取（适用于某些消息格式）
Object data = paramsMap.get("data");
if (data instanceof Map) {
Map<String, Object> dataMap = (Map<String, Object>) data;
Object dataValue = dataMap.get(identifier);
if (dataValue != null) {
return dataValue;
}
}
// 策略5：从 value 字段中获取（适用于单值消息）
Object value = paramsMap.get("value");
if (value != null) {
return value;
}
// 策略6：如果 Map 只有两个字段且包含 identifier，返回另一个字段的值
if (paramsMap.size() == 2 && paramsMap.containsKey("identifier")) {
for (Map.Entry<String, Object> entry : paramsMap.entrySet()) {
if (!"identifier".equals(entry.getKey())) {
return entry.getValue();
}
}
}
// 未找到对应的属性值
return null;
}
// ========== Topic 相关 ==========
public static String buildMessageBusGatewayDeviceMessageTopic(String serverId) {

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package cn.iocoder.yudao.module.iot.core.util;
import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
import org.junit.jupiter.api.Test;
import java.util.HashMap;
import java.util.Map;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
/**
* {@link IotDeviceMessageUtils} 的单元测试
*
* @author HUIHUI
*/
public class IotDeviceMessageUtilsTest {
@Test
public void testExtractPropertyValue_directValue() {
// 测试直接值（非 Map）
IotDeviceMessage message = new IotDeviceMessage();
message.setParams(25.5);
Object result = IotDeviceMessageUtils.extractPropertyValue(message, "temperature");
assertEquals(25.5, result);
}
@Test
public void testExtractPropertyValue_directIdentifier() {
// 测试直接通过标识符获取
IotDeviceMessage message = new IotDeviceMessage();
Map<String, Object> params = new HashMap<>();
params.put("temperature", 25.5);
message.setParams(params);
Object result = IotDeviceMessageUtils.extractPropertyValue(message, "temperature");
assertEquals(25.5, result);
}
@Test
public void testExtractPropertyValue_propertiesStructure() {
// 测试 properties 结构
IotDeviceMessage message = new IotDeviceMessage();
Map<String, Object> properties = new HashMap<>();
properties.put("temperature", 25.5);
properties.put("humidity", 60);
Map<String, Object> params = new HashMap<>();
params.put("properties", properties);
message.setParams(params);
Object result = IotDeviceMessageUtils.extractPropertyValue(message, "temperature");
assertEquals(25.5, result);
}
@Test
public void testExtractPropertyValue_dataStructure() {
// 测试 data 结构
IotDeviceMessage message = new IotDeviceMessage();
Map<String, Object> data = new HashMap<>();
data.put("temperature", 25.5);
Map<String, Object> params = new HashMap<>();
params.put("data", data);
message.setParams(params);
Object result = IotDeviceMessageUtils.extractPropertyValue(message, "temperature");
assertEquals(25.5, result);
}
@Test
public void testExtractPropertyValue_valueField() {
// 测试 value 字段
IotDeviceMessage message = new IotDeviceMessage();
Map<String, Object> params = new HashMap<>();
params.put("identifier", "temperature");
params.put("value", 25.5);
message.setParams(params);
Object result = IotDeviceMessageUtils.extractPropertyValue(message, "temperature");
assertEquals(25.5, result);
}
@Test
public void testExtractPropertyValue_singleValueMap() {
// 测试单值 Map（包含 identifier 和一个值）
IotDeviceMessage message = new IotDeviceMessage();
Map<String, Object> params = new HashMap<>();
params.put("identifier", "temperature");
params.put("actualValue", 25.5);
message.setParams(params);
Object result = IotDeviceMessageUtils.extractPropertyValue(message, "temperature");
assertEquals(25.5, result);
}
@Test
public void testExtractPropertyValue_notFound() {
// 测试未找到属性值
IotDeviceMessage message = new IotDeviceMessage();
Map<String, Object> params = new HashMap<>();
params.put("humidity", 60);
message.setParams(params);
Object result = IotDeviceMessageUtils.extractPropertyValue(message, "temperature");
assertNull(result);
}
@Test
public void testExtractPropertyValue_nullParams() {
// 测试 params 为 null
IotDeviceMessage message = new IotDeviceMessage();
message.setParams(null);
Object result = IotDeviceMessageUtils.extractPropertyValue(message, "temperature");
assertNull(result);
}
@Test
public void testExtractPropertyValue_priorityOrder() {
// 测试优先级顺序：直接标识符 > properties > data > value
IotDeviceMessage message = new IotDeviceMessage();
Map<String, Object> properties = new HashMap<>();
properties.put("temperature", 20.0);
Map<String, Object> data = new HashMap<>();
data.put("temperature", 30.0);
Map<String, Object> params = new HashMap<>();
params.put("temperature", 25.5); // 最高优先级
params.put("properties", properties);
params.put("data", data);
params.put("value", 40.0);
message.setParams(params);
Object result = IotDeviceMessageUtils.extractPropertyValue(message, "temperature");
assertEquals(25.5, result); // 应该返回直接标识符的值
}
}