287 lines
9.0 KiB
Java
287 lines
9.0 KiB
Java
package com.dongni.collisionavoidance.geofence.event;
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import com.dongni.collisionavoidance.geofence.model.entity.SpatialRule;
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import com.dongni.collisionavoidance.geofence.model.enums.RuleStatus;
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import lombok.Getter;
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import org.springframework.context.ApplicationEvent;
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import java.time.LocalDateTime;
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import java.util.Map;
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/**
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* 规则状态变更事件
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* 当规则状态发生变化时发布此事件
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*/
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@Getter
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public class RuleStateChangeEvent extends ApplicationEvent {
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/**
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* 相关规则
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*/
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private final SpatialRule rule;
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/**
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* 变更前状态
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*/
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private final RuleStatus previousStatus;
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/**
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* 变更后状态
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*/
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private final RuleStatus newStatus;
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/**
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* 状态变更时间
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*/
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private final LocalDateTime changeTimestamp;
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/**
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* 变更原因
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*/
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private final String changeReason;
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/**
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* 变更操作人
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*/
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private final String changedBy;
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/**
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* 事件源标识
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*/
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private final String eventSource;
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/**
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* 变更上下文信息
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*/
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private final Map<String, Object> changeContext;
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/**
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* 状态变更类型
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*/
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private final StateChangeType changeType;
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/**
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* 是否影响运行时规则
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*/
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private final boolean affectsRuntime;
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/**
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* 状态变更类型枚举
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*/
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public enum StateChangeType {
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ACTIVATION("激活", "规则被激活"),
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DEACTIVATION("停用", "规则被停用"),
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SUSPENSION("暂停", "规则被暂停"),
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RESUMPTION("恢复", "规则从暂停状态恢复"),
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CONFIGURATION_UPDATE("配置更新", "规则配置被更新"),
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EXPIRATION("过期", "规则因时间限制而过期"),
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MANUAL_CHANGE("手动变更", "管理员手动变更状态"),
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SYSTEM_CHANGE("系统变更", "系统自动变更状态"),
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ERROR_TRIGGERED("错误触发", "因错误导致的状态变更");
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private final String displayName;
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private final String description;
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StateChangeType(String displayName, String description) {
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this.displayName = displayName;
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this.description = description;
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}
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public String getDisplayName() {
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return displayName;
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}
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public String getDescription() {
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return description;
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}
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}
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/**
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* 完整构造函数
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*/
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public RuleStateChangeEvent(Object source, SpatialRule rule, RuleStatus previousStatus, RuleStatus newStatus,
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String changeReason, String changedBy, String eventSource,
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Map<String, Object> changeContext, StateChangeType changeType) {
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super(source);
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this.rule = rule;
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this.previousStatus = previousStatus;
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this.newStatus = newStatus;
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this.changeTimestamp = LocalDateTime.now();
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this.changeReason = changeReason;
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this.changedBy = changedBy;
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this.eventSource = eventSource;
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this.changeContext = changeContext;
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this.changeType = changeType;
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this.affectsRuntime = determineRuntimeImpact(previousStatus, newStatus);
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}
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/**
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* 简化构造函数
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*/
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public RuleStateChangeEvent(Object source, SpatialRule rule, RuleStatus previousStatus, RuleStatus newStatus,
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String changeReason, String changedBy) {
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this(source, rule, previousStatus, newStatus, changeReason, changedBy, "RuleManager",
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null, determineChangeType(previousStatus, newStatus));
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}
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/**
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* 规则激活事件工厂方法
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*/
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public static RuleStateChangeEvent ruleActivated(Object source, SpatialRule rule, String changedBy, String reason) {
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return new RuleStateChangeEvent(source, rule, rule.getStatus(), RuleStatus.ACTIVE,
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reason, changedBy, "RuleManager", null, StateChangeType.ACTIVATION);
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}
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/**
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* 规则停用事件工厂方法
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*/
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public static RuleStateChangeEvent ruleDeactivated(Object source, SpatialRule rule, String changedBy, String reason) {
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return new RuleStateChangeEvent(source, rule, rule.getStatus(), RuleStatus.SUSPENDED,
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reason, changedBy, "RuleManager", null, StateChangeType.DEACTIVATION);
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}
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/**
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* 规则暂停事件工厂方法
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*/
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public static RuleStateChangeEvent ruleSuspended(Object source, SpatialRule rule, String changedBy, String reason) {
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return new RuleStateChangeEvent(source, rule, rule.getStatus(), RuleStatus.SUSPENDED,
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reason, changedBy, "RuleManager", null, StateChangeType.SUSPENSION);
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}
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/**
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* 规则配置更新事件工厂方法
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*/
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public static RuleStateChangeEvent ruleConfigUpdated(Object source, SpatialRule rule, String changedBy,
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Map<String, Object> updateContext) {
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return new RuleStateChangeEvent(source, rule, rule.getStatus(), rule.getStatus(),
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"规则配置已更新", changedBy, "RuleManager", updateContext, StateChangeType.CONFIGURATION_UPDATE);
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}
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/**
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* 确定状态变更类型
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*/
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private static StateChangeType determineChangeType(RuleStatus previousStatus, RuleStatus newStatus) {
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if (previousStatus == newStatus) {
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return StateChangeType.CONFIGURATION_UPDATE;
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}
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if (newStatus == RuleStatus.ACTIVE) {
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return StateChangeType.ACTIVATION;
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} else if (newStatus == RuleStatus.SUSPENDED) {
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return StateChangeType.SUSPENSION;
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} else if (newStatus == RuleStatus.EXPIRED || newStatus == RuleStatus.DELETED) {
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return StateChangeType.DEACTIVATION;
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} else if (previousStatus == RuleStatus.SUSPENDED && newStatus == RuleStatus.ACTIVE) {
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return StateChangeType.RESUMPTION;
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} else {
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return StateChangeType.MANUAL_CHANGE;
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}
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}
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/**
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* 确定是否影响运行时
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*/
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private boolean determineRuntimeImpact(RuleStatus previousStatus, RuleStatus newStatus) {
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// 如果状态从ACTIVE变为非ACTIVE，或从非ACTIVE变为ACTIVE，都影响运行时
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if (previousStatus == null || newStatus == null) {
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return false;
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}
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boolean wasActive = (previousStatus == RuleStatus.ACTIVE);
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boolean isActive = (newStatus == RuleStatus.ACTIVE);
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return wasActive != isActive;
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}
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/**
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* 判断是否为激活状态变更
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*/
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public boolean isActivationChange() {
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return changeType == StateChangeType.ACTIVATION || changeType == StateChangeType.RESUMPTION;
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}
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/**
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* 判断是否为停用状态变更
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*/
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public boolean isDeactivationChange() {
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return changeType == StateChangeType.DEACTIVATION || changeType == StateChangeType.SUSPENSION;
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}
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/**
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* 判断是否为配置变更
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*/
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public boolean isConfigurationChange() {
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return changeType == StateChangeType.CONFIGURATION_UPDATE;
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}
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/**
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* 判断是否为系统自动变更
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*/
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public boolean isSystemTriggered() {
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return changeType == StateChangeType.SYSTEM_CHANGE ||
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changeType == StateChangeType.EXPIRATION ||
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changeType == StateChangeType.ERROR_TRIGGERED;
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}
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/**
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* 获取变更严重程度
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*/
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public int getChangeSeverity() {
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switch (changeType) {
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case ERROR_TRIGGERED:
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return 5; // 最高
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case EXPIRATION:
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return 4;
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case DEACTIVATION:
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case SUSPENSION:
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return 3;
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case ACTIVATION:
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case RESUMPTION:
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return 2;
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case CONFIGURATION_UPDATE:
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case MANUAL_CHANGE:
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case SYSTEM_CHANGE:
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default:
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return 1; // 最低
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}
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}
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/**
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* 获取事件描述
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*/
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public String getEventDescription() {
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return String.format("规则状态变更 - 规则ID: %s, %s -> %s, 变更类型: %s, 操作人: %s",
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rule.getRuleId(),
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previousStatus != null ? previousStatus.name() : "NULL",
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newStatus != null ? newStatus.name() : "NULL",
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changeType.getDisplayName(),
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changedBy != null ? changedBy : "SYSTEM");
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}
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/**
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* 判断是否需要通知
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*/
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public boolean requiresNotification() {
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return affectsRuntime || getChangeSeverity() >= 3;
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}
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@Override
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public String toString() {
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return String.format("RuleStateChangeEvent{" +
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"ruleId='%s', " +
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"previousStatus=%s, " +
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"newStatus=%s, " +
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"changeType=%s, " +
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"changedBy='%s', " +
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"affectsRuntime=%s, " +
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"timestamp=%s" +
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"}",
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rule.getRuleId(),
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previousStatus,
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newStatus,
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changeType.name(),
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changedBy,
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affectsRuntime,
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changeTimestamp);
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}
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} |