工作流模块提交

pqs-bpm/bpm-boot/src/main/java/com/njcn/bpm/config/BpmFlowableConfiguration.java

@@ -0,0 +1,91 @@
+package com.njcn.bpm.config;
+
+import cn.hutool.core.collection.ListUtil;
+import com.njcn.bpm.behavior.BpmActivityBehaviorFactory;
+import com.njcn.bpm.event.BpmProcessInstanceEventPublisher;
+import com.njcn.bpm.strategy.BpmTaskCandidateInvoker;
+import com.njcn.bpm.strategy.IBpmTaskCandidateStrategy;
+import com.njcn.user.api.UserFeignClient;
+import org.flowable.common.engine.api.delegate.event.FlowableEventListener;
+import org.flowable.spring.SpringProcessEngineConfiguration;
+import org.flowable.spring.boot.EngineConfigurationConfigurer;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.task.AsyncListenableTaskExecutor;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
+
+import java.util.List;
+
+/**
+ * BPM 模块的 Flowable 配置类
+ *
+ * @author jason
+ */
+@Configuration(proxyBeanMethods = false)
+public class BpmFlowableConfiguration {
+
+    /**
+     * 参考 {@link org.flowable.spring.boot.FlowableJobConfiguration} 类，创建对应的 AsyncListenableTaskExecutor Bean
+     *
+     * 如果不创建，会导致项目启动时，Flowable 报错的问题
+     */
+    @Bean(name = "applicationTaskExecutor")
+    @ConditionalOnMissingBean(name = "applicationTaskExecutor")
+    public AsyncListenableTaskExecutor taskExecutor() {
+        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
+        executor.setCorePoolSize(8);
+        executor.setMaxPoolSize(8);
+        executor.setQueueCapacity(100);
+        executor.setThreadNamePrefix("flowable-task-Executor-");
+        executor.setAwaitTerminationSeconds(30);
+        executor.setWaitForTasksToCompleteOnShutdown(true);
+        executor.setAllowCoreThreadTimeOut(true);
+        executor.initialize();
+        return executor;
+    }
+
+    /**
+     * BPM 模块的 ProcessEngineConfigurationConfigurer 实现类：
+     *
+     * 1. 设置各种监听器
+     * 2. 设置自定义的 ActivityBehaviorFactory 实现
+     */
+    @Bean
+    public EngineConfigurationConfigurer<SpringProcessEngineConfiguration> bpmProcessEngineConfigurationConfigurer(
+            ObjectProvider<FlowableEventListener> listeners,
+            BpmActivityBehaviorFactory bpmActivityBehaviorFactory) {
+        return configuration -> {
+            // 注册监听器，例如说 BpmActivityEventListener
+            configuration.setEventListeners(ListUtil.toList(listeners.iterator()));
+            // 设置 ActivityBehaviorFactory 实现类，用于流程任务的审核人的自定义
+            configuration.setActivityBehaviorFactory(bpmActivityBehaviorFactory);
+        };
+    }
+
+    // =========== 审批人相关的 Bean ==========
+
+    @Bean
+    public BpmActivityBehaviorFactory bpmActivityBehaviorFactory(BpmTaskCandidateInvoker bpmTaskCandidateInvoker) {
+        BpmActivityBehaviorFactory bpmActivityBehaviorFactory = new BpmActivityBehaviorFactory();
+        bpmActivityBehaviorFactory.setTaskCandidateInvoker(bpmTaskCandidateInvoker);
+        return bpmActivityBehaviorFactory;
+    }
+
+    @Bean
+    @SuppressWarnings("SpringJavaInjectionPointsAutowiringInspection") // adminUserApi 可以注入成功
+    public BpmTaskCandidateInvoker bpmTaskCandidateInvoker(List<IBpmTaskCandidateStrategy> strategyList,
+                                                           UserFeignClient adminUserApi) {
+        return new BpmTaskCandidateInvoker(strategyList, adminUserApi);
+    }
+
+    // =========== 自己拓展的 Bean ==========
+
+    @Bean
+    public BpmProcessInstanceEventPublisher processInstanceEventPublisher(ApplicationEventPublisher publisher) {
+        return new BpmProcessInstanceEventPublisher(publisher);
+    }
+
+}