[flink] 01/02: [FLINK-21258] Add Canceling state for DeclarativeScheduler

[rm...@apache.org]

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rmetzger pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/flink.git

commit 39996236d6a591311e15ee58a367c9b7cf124c5d
Author: Till Rohrmann <tr...@apache.org>
AuthorDate: Tue Feb 9 10:28:05 2021 +0100

    [FLINK-21258] Add Canceling state for DeclarativeScheduler
---
 .../runtime/scheduler/declarative/Canceling.java   | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/flink-runtime/src/main/java/org/apache/flink/runtime/scheduler/declarative/Canceling.java b/flink-runtime/src/main/java/org/apache/flink/runtime/scheduler/declarative/Canceling.java
new file mode 100644
index 0000000..ea48ccd
--- /dev/null
+++ b/flink-runtime/src/main/java/org/apache/flink/runtime/scheduler/declarative/Canceling.java
@@ -0,0 +1,69 @@
+/*
+ * 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.flink.runtime.scheduler.declarative;
+
+import org.apache.flink.api.common.JobStatus;
+import org.apache.flink.runtime.executiongraph.ArchivedExecutionGraph;
+import org.apache.flink.runtime.executiongraph.ExecutionGraph;
+import org.apache.flink.runtime.executiongraph.TaskExecutionStateTransition;
+import org.apache.flink.runtime.scheduler.ExecutionGraphHandler;
+import org.apache.flink.runtime.scheduler.OperatorCoordinatorHandler;
+
+import org.slf4j.Logger;
+
+/** State which describes a job which is currently being canceled. */
+class Canceling extends StateWithExecutionGraph {
+
+    private final Context context;
+
+    Canceling(
+            Context context,
+            ExecutionGraph executionGraph,
+            ExecutionGraphHandler executionGraphHandler,
+            OperatorCoordinatorHandler operatorCoordinatorHandler,
+            Logger logger) {
+        super(context, executionGraph, executionGraphHandler, operatorCoordinatorHandler, logger);
+        this.context = context;
+    }
+
+    @Override
+    public void onEnter() {
+        getExecutionGraph().cancel();
+    }
+
+    @Override
+    public void cancel() {
+        // we are already in the state canceling
+    }
+
+    @Override
+    public void handleGlobalFailure(Throwable cause) {
+        // ignore global failures
+    }
+
+    @Override
+    boolean updateTaskExecutionState(TaskExecutionStateTransition taskExecutionStateTransition) {
+        return getExecutionGraph().updateState(taskExecutionStateTransition);
+    }
+
+    @Override
+    void onGloballyTerminalState(JobStatus globallyTerminalState) {
+        context.goToFinished(ArchivedExecutionGraph.createFrom(getExecutionGraph()));
+    }
+}