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https://issues.apache.org/jira/browse/FLINK-2314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14711480#comment-14711480
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ASF GitHub Bot commented on FLINK-2314:
---------------------------------------
Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/997#discussion_r37881537
--- Diff:
flink-staging/flink-streaming/flink-streaming-core/src/test/java/org/apache/flink/streaming/util/FileSourceFunctionTest.java
---
@@ -0,0 +1,208 @@
+/*
+ * 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.streaming.util;
+
+import org.apache.flink.api.common.ExecutionConfig;
+import org.apache.flink.api.common.accumulators.Accumulator;
+import org.apache.flink.api.common.functions.RuntimeContext;
+import org.apache.flink.api.common.io.FileInputFormat;
+import org.apache.flink.api.java.functions.KeySelector;
+import org.apache.flink.api.java.typeutils.TypeExtractor;
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.core.fs.FileInputSplit;
+import org.apache.flink.core.fs.Path;
+import org.apache.flink.core.io.InputSplit;
+import org.apache.flink.runtime.operators.testutils.MockEnvironment;
+import org.apache.flink.runtime.operators.testutils.MockInputSplitProvider;
+import org.apache.flink.runtime.state.LocalStateHandle;
+import org.apache.flink.streaming.api.functions.source.FileSourceFunction;
+import org.apache.flink.streaming.api.functions.source.SourceFunction;
+import org.apache.flink.streaming.api.watermark.Watermark;
+import org.apache.flink.streaming.runtime.tasks.StreamingRuntimeContext;
+import org.apache.flink.types.IntValue;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+public class FileSourceFunctionTest {
+ @Test
+ public void testFileSourceFunction() {
+ DummyFileInputFormat inputFormat = new DummyFileInputFormat();
+ RuntimeContext runtimeContext = new
StreamingRuntimeContext("MockTask", new MockEnvironment(3 * 1024 * 1024,
+ inputFormat.getDummyInputSplitProvider(),
1024), null, new ExecutionConfig(), new DummyModKey(2),
+ new
LocalStateHandle.LocalStateHandleProvider<Serializable>(), new HashMap<String,
Accumulator<?, ?>>());
+
+
inputFormat.setFilePath("file:///some/none/existing/directory/");
+ FileSourceFunction<IntValue> fileSourceFunction = new
FileSourceFunction<IntValue>(inputFormat,
TypeExtractor.getInputFormatTypes(inputFormat));
+
+ fileSourceFunction.setRuntimeContext(runtimeContext);
+ DummyContext<IntValue> ctx = new DummyContext<IntValue>();
+ try {
+ fileSourceFunction.open(new Configuration());
+ fileSourceFunction.run(ctx);
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ Assert.assertTrue(ctx.getData().size() == 200);
+ }
+
+ @Test
+ public void testFileSourceFunctionCheckpoint() {
+ DummyFileInputFormat inputFormat = new DummyFileInputFormat();
+ RuntimeContext runtimeContext = new
StreamingRuntimeContext("MockTask", new MockEnvironment(3 * 1024 * 1024,
+ inputFormat.getDummyInputSplitProvider(),
1024), null, new ExecutionConfig(), new DummyModKey(2),
+ new
LocalStateHandle.LocalStateHandleProvider<Serializable>(), new HashMap<String,
Accumulator<?, ?>>());
+
+
inputFormat.setFilePath("file:///some/none/existing/directory/");
+ FileSourceFunction<IntValue> fileSourceFunction = new
FileSourceFunction<IntValue>(inputFormat,
TypeExtractor.getInputFormatTypes(inputFormat));
+ fileSourceFunction.setRuntimeContext(runtimeContext);
+ DummyContext<IntValue> ctx = new DummyContext<IntValue>();
+ try {
+ fileSourceFunction.open(new Configuration());
+ fileSourceFunction.restoreState("100:1");
+ fileSourceFunction.run(ctx);
+ } catch (Exception e) {
+ e.printStackTrace();
--- End diff --
Same here as above.
> Make Streaming File Sources Persistent
> --------------------------------------
>
> Key: FLINK-2314
> URL: https://issues.apache.org/jira/browse/FLINK-2314
> Project: Flink
> Issue Type: Improvement
> Components: Streaming
> Affects Versions: 0.9
> Reporter: Stephan Ewen
> Assignee: Sheetal Parade
> Labels: easyfix, starter
>
> Streaming File sources should participate in the checkpointing. They should
> track the bytes they read from the file and checkpoint it.
> One can look at the sequence generating source function for an example of a
> checkpointed source.
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