ruanwenjun commented on code in PR #13948:
URL: 
https://github.com/apache/dolphinscheduler/pull/13948#discussion_r1176659131


##########
dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/task/blocking/BlockingLogicTask.java:
##########
@@ -0,0 +1,138 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dolphinscheduler.server.master.runner.task.blocking;
+
+import org.apache.dolphinscheduler.common.constants.Constants;
+import org.apache.dolphinscheduler.common.enums.BlockingOpportunity;
+import org.apache.dolphinscheduler.common.enums.WorkflowExecutionStatus;
+import org.apache.dolphinscheduler.common.utils.JSONUtils;
+import org.apache.dolphinscheduler.dao.entity.ProcessInstance;
+import org.apache.dolphinscheduler.dao.entity.TaskInstance;
+import org.apache.dolphinscheduler.dao.repository.ProcessInstanceDao;
+import org.apache.dolphinscheduler.dao.repository.TaskInstanceDao;
+import org.apache.dolphinscheduler.plugin.task.api.TaskExecutionContext;
+import org.apache.dolphinscheduler.plugin.task.api.enums.DependResult;
+import org.apache.dolphinscheduler.plugin.task.api.enums.TaskExecutionStatus;
+import org.apache.dolphinscheduler.plugin.task.api.model.DependentItem;
+import org.apache.dolphinscheduler.plugin.task.api.model.DependentTaskModel;
+import 
org.apache.dolphinscheduler.plugin.task.api.parameters.BlockingParameters;
+import 
org.apache.dolphinscheduler.plugin.task.api.parameters.DependentParameters;
+import org.apache.dolphinscheduler.plugin.task.api.utils.DependentUtils;
+import 
org.apache.dolphinscheduler.server.master.cache.ProcessInstanceExecCacheManager;
+import 
org.apache.dolphinscheduler.server.master.exception.MasterTaskExecuteException;
+import org.apache.dolphinscheduler.server.master.runner.task.BaseSyncLogicTask;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+import lombok.extern.slf4j.Slf4j;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+
+@Slf4j
+public class BlockingLogicTask extends BaseSyncLogicTask<BlockingParameters> {
+
+    public static final String TASK_TYPE = "BLOCKING";
+
+    private final ProcessInstanceExecCacheManager 
processInstanceExecCacheManager;
+
+    private final ProcessInstanceDao processInstanceDao;
+
+    private final TaskInstanceDao taskInstanceDao;
+
+    public BlockingLogicTask(TaskExecutionContext taskExecutionContext,
+                             ProcessInstanceExecCacheManager 
processInstanceExecCacheManager,
+                             ProcessInstanceDao processInstanceDao,
+                             TaskInstanceDao taskInstanceDao) {
+        super(taskExecutionContext,
+                JSONUtils.parseObject(taskExecutionContext.getTaskParams(), 
new TypeReference<BlockingParameters>() {
+                }));
+        this.processInstanceExecCacheManager = processInstanceExecCacheManager;
+        this.processInstanceDao = processInstanceDao;
+        this.taskInstanceDao = taskInstanceDao;
+    }
+
+    @Override
+    public void handle() throws MasterTaskExecuteException {
+        DependResult conditionResult = calculateConditionResult();
+        DependResult expected = taskParameters.getBlockingOpportunity()
+                .equals(BlockingOpportunity.BLOCKING_ON_SUCCESS.getDesc())
+                        ? DependResult.SUCCESS
+                        : DependResult.FAILED;
+        boolean isBlocked = (expected == conditionResult);
+        log.info("blocking opportunity: expected-->{}, actual-->{}", expected, 
conditionResult);
+        ProcessInstance workflowInstance = processInstanceExecCacheManager
+                
.getByProcessInstanceId(taskExecutionContext.getProcessInstanceId()).getProcessInstance();
+        workflowInstance.setBlocked(isBlocked);
+        if (isBlocked) {
+            
workflowInstance.setStateWithDesc(WorkflowExecutionStatus.READY_BLOCK, "ready 
block");
+        }
+        
taskExecutionContext.setCurrentExecutionStatus(TaskExecutionStatus.SUCCESS);
+    }
+
+    private DependResult calculateConditionResult() throws 
MasterTaskExecuteException {
+        // todo: Directly get the task instance from the cache
+        Map<Long, TaskInstance> completeTaskList = taskInstanceDao
+                
.findValidTaskListByProcessId(taskExecutionContext.getProcessInstanceId(),
+                        taskExecutionContext.getTestFlag())
+                .stream()
+                .collect(Collectors.toMap(TaskInstance::getTaskCode, 
Function.identity()));
+
+        // todo: we need to parse the task parameter from TaskExecutionContext
+        TaskInstance taskInstance =
+                
processInstanceExecCacheManager.getByProcessInstanceId(taskExecutionContext.getProcessInstanceId())
+                        
.getTaskInstance(taskExecutionContext.getTaskInstanceId())
+                        .orElseThrow(() -> new 
MasterTaskExecuteException("Task instance not found"));
+        DependentParameters dependentParameters = taskInstance.getDependency();
+
+        List<DependResult> tempResultList = new ArrayList<>();
+        for (DependentTaskModel dependentTaskModel : 
dependentParameters.getDependTaskList()) {
+            List<DependResult> itemDependResult = new ArrayList<>();
+            for (DependentItem item : dependentTaskModel.getDependItemList()) {
+                itemDependResult.add(getDependResultForItem(item, 
completeTaskList));
+            }
+            DependResult tempResult =
+                    
DependentUtils.getDependResultForRelation(dependentTaskModel.getRelation(), 
itemDependResult);
+            tempResultList.add(tempResult);
+        }
+        return 
DependentUtils.getDependResultForRelation(dependentParameters.getRelation(), 
tempResultList);
+    }
+
+    private DependResult getDependResultForItem(DependentItem item, Map<Long, 
TaskInstance> completeTaskList) {
+
+        DependResult dependResult = DependResult.SUCCESS;
+        if (!completeTaskList.containsKey(item.getDepTaskCode())) {
+            log.info("depend item: {} have not completed yet.", 
item.getDepTaskCode());
+            dependResult = DependResult.FAILED;

Review Comment:
   Right now, the block task is using dependent pojo... I don't want to 
refractory these in this pr, we need to remove these logic in the future.



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