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Posted to commits@flink.apache.org by mb...@apache.org on 2015/10/11 14:30:39 UTC
[2/2] flink git commit: [FLINK-2817] [streaming] FileMonitoring
function logs on empty location
[FLINK-2817] [streaming] FileMonitoring function logs on empty location
Instead of throwing NPE when location is empty
Closes #1251
Project: http://git-wip-us.apache.org/repos/asf/flink/repo
Commit: http://git-wip-us.apache.org/repos/asf/flink/commit/5dfc897b
Tree: http://git-wip-us.apache.org/repos/asf/flink/tree/5dfc897b
Diff: http://git-wip-us.apache.org/repos/asf/flink/diff/5dfc897b
Branch: refs/heads/master
Commit: 5dfc897beb99d2d8f6d7becba972ff5756b3fb19
Parents: 2475c82
Author: ehnalis <zo...@gmail.com>
Authored: Sat Oct 10 17:58:41 2015 +0200
Committer: mbalassi <mb...@apache.org>
Committed: Sun Oct 11 14:29:09 2015 +0200
----------------------------------------------------------------------
.../source/FileMonitoringFunction.java | 35 ++++++-----
.../source/FileMonitoringFunctionTest.java | 63 ++++++++++++++++++++
2 files changed, 83 insertions(+), 15 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/flink/blob/5dfc897b/flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/functions/source/FileMonitoringFunction.java
----------------------------------------------------------------------
diff --git a/flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/functions/source/FileMonitoringFunction.java b/flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/functions/source/FileMonitoringFunction.java
index 2c85650..a217923 100644
--- a/flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/functions/source/FileMonitoringFunction.java
+++ b/flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/functions/source/FileMonitoringFunction.java
@@ -17,13 +17,6 @@
package org.apache.flink.streaming.api.functions.source;
-import java.io.IOException;
-import java.net.URI;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
import org.apache.flink.api.java.tuple.Tuple3;
import org.apache.flink.core.fs.FileStatus;
import org.apache.flink.core.fs.FileSystem;
@@ -31,6 +24,13 @@ import org.apache.flink.core.fs.Path;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import java.io.IOException;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
public class FileMonitoringFunction implements SourceFunction<Tuple3<String, Long, Long>> {
private static final long serialVersionUID = 1L;
@@ -95,16 +95,21 @@ public class FileMonitoringFunction implements SourceFunction<Tuple3<String, Lon
FileStatus[] statuses = fileSystem.listStatus(new Path(path));
- for (FileStatus status : statuses) {
- Path filePath = status.getPath();
- String fileName = filePath.getName();
- long modificationTime = status.getModificationTime();
-
- if (!isFiltered(fileName, modificationTime)) {
- files.add(filePath.toString());
- modificationTimes.put(fileName, modificationTime);
+ if (statuses == null) {
+ LOG.warn("Path does not exist: {}", path);
+ } else {
+ for (FileStatus status : statuses) {
+ Path filePath = status.getPath();
+ String fileName = filePath.getName();
+ long modificationTime = status.getModificationTime();
+
+ if (!isFiltered(fileName, modificationTime)) {
+ files.add(filePath.toString());
+ modificationTimes.put(fileName, modificationTime);
+ }
}
}
+
return files;
}
http://git-wip-us.apache.org/repos/asf/flink/blob/5dfc897b/flink-staging/flink-streaming/flink-streaming-core/src/test/java/org/apache/flink/streaming/api/functions/source/FileMonitoringFunctionTest.java
----------------------------------------------------------------------
diff --git a/flink-staging/flink-streaming/flink-streaming-core/src/test/java/org/apache/flink/streaming/api/functions/source/FileMonitoringFunctionTest.java b/flink-staging/flink-streaming/flink-streaming-core/src/test/java/org/apache/flink/streaming/api/functions/source/FileMonitoringFunctionTest.java
new file mode 100644
index 0000000..2d9921a
--- /dev/null
+++ b/flink-staging/flink-streaming/flink-streaming-core/src/test/java/org/apache/flink/streaming/api/functions/source/FileMonitoringFunctionTest.java
@@ -0,0 +1,63 @@
+/*
+ * 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.api.functions.source;
+
+import org.apache.flink.api.java.tuple.Tuple3;
+import org.apache.flink.streaming.api.operators.Output;
+import org.apache.flink.streaming.api.operators.StreamSource;
+import org.apache.flink.streaming.api.watermark.Watermark;
+import org.apache.flink.streaming.runtime.streamrecord.StreamRecord;
+import org.junit.Test;
+
+/**
+ * Tests for the {@link org.apache.flink.streaming.api.functions.source.FileMonitoringFunction}.
+ */
+public class FileMonitoringFunctionTest {
+
+ @Test
+ public void testForEmptyLocation() throws Exception {
+ final FileMonitoringFunction fileMonitoringFunction
+ = new FileMonitoringFunction("?non-existing-path", 1L, FileMonitoringFunction.WatchType.ONLY_NEW_FILES);
+
+ new Thread() {
+ @Override
+ public void run() {
+ try {
+ Thread.sleep(1000L);
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ fileMonitoringFunction.cancel();
+ }
+ }.start();
+
+ fileMonitoringFunction.run(
+ new StreamSource.NonWatermarkContext<Tuple3<String, Long, Long>>(
+ new Object(),
+ new Output<StreamRecord<Tuple3<String, Long, Long>>>() {
+ @Override
+ public void emitWatermark(Watermark mark) { }
+ @Override
+ public void collect(StreamRecord<Tuple3<String, Long, Long>> record) { }
+ @Override
+ public void close() { }
+ })
+ );
+ }
+}
\ No newline at end of file