WorkflowTask permissive property added, so various task types

can be permissive.

Author: ivakoleva

common/src/main/java/com/netflix/conductor/common/metadata/tasks/TaskType.java

@@ -23,7 +23,6 @@ public enum TaskType {
     DYNAMIC,
     FORK_JOIN,
     FORK_JOIN_DYNAMIC,
-    PERMISSIVE,
     DECISION,
     SWITCH,
     JOIN,
@@ -71,7 +70,6 @@ public enum TaskType {
     public static final String TASK_TYPE_JSON_JQ_TRANSFORM = "JSON_JQ_TRANSFORM";
     public static final String TASK_TYPE_SET_VARIABLE = "SET_VARIABLE";
     public static final String TASK_TYPE_FORK = "FORK";
-    public static final String TASK_TYPE_PERMISSIVE = "PERMISSIVE";
     public static final String TASK_TYPE_NOOP = "NOOP";
 
     private static final Set<String> BUILT_IN_TASKS = new HashSet<>();

common/src/main/java/com/netflix/conductor/common/metadata/workflow/WorkflowTask.java

@@ -153,6 +153,9 @@ public void setTasks(List<WorkflowTask> tasks) {
     @ProtoField(id = 28)
     private String expression;
 
+    @ProtoField(id = 29)
+    private boolean permissive = false;
+
     /**
      * @return the name
      */
@@ -548,6 +551,22 @@ public void setExpression(String expression) {
         this.expression = expression;
     }
 
+    /**
+     * @return If the task is permissive. When set to true, and the task is in failed status,
+     *     fail-fast does not occur. The workflow execution continues until reaching join or end of
+     *     workflow, allowing idempotent execution of other tasks.
+     */
+    public boolean isPermissive() {
+        return this.permissive;
+    }
+
+    /**
+     * @param permissive when set to true, the task is marked as permissive
+     */
+    public void setPermissive(boolean permissive) {
+        this.permissive = permissive;
+    }
+
     private Collection<List<WorkflowTask>> children() {
         Collection<List<WorkflowTask>> workflowTaskLists = new LinkedList<>();
 

core/src/main/java/com/netflix/conductor/core/execution/DeciderService.java

@@ -44,7 +44,6 @@
 import com.netflix.conductor.model.TaskModel;
 import com.netflix.conductor.model.WorkflowModel;
 
-import static com.netflix.conductor.common.metadata.tasks.TaskType.PERMISSIVE;
 import static com.netflix.conductor.common.metadata.tasks.TaskType.TERMINATE;
 import static com.netflix.conductor.common.metadata.tasks.TaskType.USER_DEFINED;
 import static com.netflix.conductor.model.TaskModel.Status.*;
@@ -209,9 +208,7 @@ private DeciderOutcome decide(final WorkflowModel workflow, List<TaskModel> preS
                     executedTaskRefNames.remove(retryTask.get().getReferenceTaskName());
                     outcome.tasksToBeUpdated.add(pendingTask);
                 } else if (!(pendingTask.getWorkflowTask() != null
-                        && TaskType.PERMISSIVE
-                                .name()
-                                .equals(pendingTask.getWorkflowTask().getType())
+                        && pendingTask.getWorkflowTask().isPermissive()
                         && !pendingTask.getWorkflowTask().isOptional())) {
                     pendingTask.setStatus(COMPLETED_WITH_ERRORS);
                 }
@@ -262,7 +259,7 @@ private DeciderOutcome decide(final WorkflowModel workflow, List<TaskModel> preS
             List<TaskModel> permissiveTasksTerminalNonSuccessful =
                     workflow.getTasks().stream()
                             .filter(t -> t.getWorkflowTask() != null)
-                            .filter(t -> PERMISSIVE.name().equals(t.getWorkflowTask().getType()))
+                            .filter(t -> t.getWorkflowTask().isPermissive())
                             .filter(t -> !t.getWorkflowTask().isOptional())
                             .collect(
                                     Collectors.toMap(
@@ -563,8 +560,7 @@ Optional<TaskModel> retry(
                 || TaskType.isBuiltIn(task.getTaskType())
                 || expectedRetryCount <= retryCount) {
             if (workflowTask != null
-                    && (workflowTask.isOptional()
-                            || TaskType.PERMISSIVE.name().equals(workflowTask.getType()))) {
+                    && (workflowTask.isOptional() || workflowTask.isPermissive())) {
                 return Optional.empty();
             }
             WorkflowModel.Status status;

core/src/main/java/com/netflix/conductor/core/execution/WorkflowExecutor.java

@@ -1832,7 +1832,7 @@ private static boolean isJoinOnFailedPermissive(List<String> joinOn, WorkflowMod
                 .map(workflow::getTaskByRefName)
                 .anyMatch(
                         t ->
-                                TaskType.PERMISSIVE.name().equals(t.getWorkflowTask().getType())
+                                t.getWorkflowTask().isPermissive()
                                         && !t.getWorkflowTask().isOptional()
                                         && t.getStatus().equals(FAILED));
     }

core/src/main/java/com/netflix/conductor/core/execution/mapper/PermissiveTaskMapper.java

@@ -24,7 +24,6 @@
 import com.netflix.conductor.model.TaskModel;
 import com.netflix.conductor.model.WorkflowModel;
 
-import static com.netflix.conductor.common.metadata.tasks.TaskType.PERMISSIVE;
 import static com.netflix.conductor.common.metadata.tasks.TaskType.TASK_TYPE_EXCLUSIVE_JOIN;
 
 @Component(TASK_TYPE_EXCLUSIVE_JOIN)
@@ -68,7 +67,7 @@ public boolean execute(
             foundExlusiveJoinOnTask = taskStatus.isTerminal();
             hasFailures =
                     !taskStatus.isSuccessful()
-                            && (!PERMISSIVE.name().equals(exclusiveTask.getWorkflowTask().getType())
+                            && (!exclusiveTask.getWorkflowTask().isPermissive()
                                     || joinOn.stream()
                                             .map(workflow::getTaskByRefName)
                                             .allMatch(t -> t.getStatus().isTerminal()));

core/src/main/java/com/netflix/conductor/core/execution/tasks/ExclusiveJoin.java

@@ -23,7 +23,6 @@
 import com.netflix.conductor.model.TaskModel;
 import com.netflix.conductor.model.WorkflowModel;
 
-import static com.netflix.conductor.common.metadata.tasks.TaskType.PERMISSIVE;
 import static com.netflix.conductor.common.metadata.tasks.TaskType.TASK_TYPE_JOIN;
 
 @Component(TASK_TYPE_JOIN)
@@ -61,7 +60,7 @@ public boolean execute(
             hasFailures =
                     !taskStatus.isSuccessful()
                             && !forkedTask.getWorkflowTask().isOptional()
-                            && (!PERMISSIVE.name().equals(forkedTask.getWorkflowTask().getType())
+                            && (!forkedTask.getWorkflowTask().isPermissive()
                                     || joinOn.stream()
                                             .map(workflow::getTaskByRefName)
                                             .allMatch(t -> t.getStatus().isTerminal()));

core/src/main/java/com/netflix/conductor/core/execution/tasks/Join.java

@@ -440,22 +440,21 @@ public void testOptional() {
                 outcome.tasksToBeScheduled.get(0).getReferenceTaskName());
     }
 
-    /** Similar to {@link #testOptional} */
     @Test
     public void testPermissive() {
         WorkflowDef def = new WorkflowDef();
         def.setName("test-permissive");
 
         WorkflowTask task1 = new WorkflowTask();
         task1.setName("task0");
-        task1.setType("PERMISSIVE");
+        task1.setPermissive(true);
         task1.setTaskReferenceName("t0");
         task1.getInputParameters().put("taskId", "${CPEWF_TASK_ID}");
         task1.setTaskDefinition(new TaskDef("task0"));
 
         WorkflowTask task2 = new WorkflowTask();
         task2.setName("task1");
-        task2.setType("PERMISSIVE");
+        task2.setPermissive(true);
         task2.setTaskReferenceName("t1");
         task2.setTaskDefinition(new TaskDef("task1"));
 

core/src/test/java/com/netflix/conductor/core/execution/TestDeciderOutcomes.java

@@ -1351,6 +1351,7 @@ public WorkflowTaskPb.WorkflowTask toProto(WorkflowTask from) {
         if (from.getExpression() != null) {
             to.setExpression( from.getExpression() );
         }
+        to.setPermissive( from.isPermissive() );
         return to.build();
     }
 
@@ -1396,6 +1397,7 @@ public WorkflowTask fromProto(WorkflowTaskPb.WorkflowTask from) {
         to.setRetryCount( from.getRetryCount() );
         to.setEvaluatorType( from.getEvaluatorType() );
         to.setExpression( from.getExpression() );
+        to.setPermissive( from.getPermissive() );
         return to;
     }