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https://issues.apache.org/jira/browse/BEAM-14471?focusedWorklogId=774198&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-774198
]
ASF GitHub Bot logged work on BEAM-14471:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 24/May/22 19:49
Start Date: 24/May/22 19:49
Worklog Time Spent: 10m
Work Description: ihji commented on code in PR #17674:
URL: https://github.com/apache/beam/pull/17674#discussion_r880779176
##########
examples/java/src/main/java/org/apache/beam/examples/multilang/PythonDataframeWordCount.java:
##########
@@ -0,0 +1,152 @@
+/*
+ * 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.beam.examples.multilang;
+
+import org.apache.beam.examples.common.ExampleUtils;
+import org.apache.beam.sdk.Pipeline;
+import org.apache.beam.sdk.extensions.python.PythonExternalTransform;
+import org.apache.beam.sdk.io.TextIO;
+import org.apache.beam.sdk.metrics.Counter;
+import org.apache.beam.sdk.metrics.Distribution;
+import org.apache.beam.sdk.metrics.Metrics;
+import org.apache.beam.sdk.options.Default;
+import org.apache.beam.sdk.options.Description;
+import org.apache.beam.sdk.options.PipelineOptions;
+import org.apache.beam.sdk.options.PipelineOptionsFactory;
+import org.apache.beam.sdk.options.Validation.Required;
+import org.apache.beam.sdk.schemas.Schema;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.MapElements;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.transforms.SimpleFunction;
+import org.apache.beam.sdk.util.PythonCallableSource;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.sdk.values.Row;
+
+/**
+ * An example that counts words in Shakespeare and utilizes a Python external
transform.
+ *
+ * <p>This class, {@link PythonDataframeWordCount}, uses Python
DataframeTransform to count words
+ * from the input text file. The Python expansion service provided by
--expansionService must allow
+ * the expansion of apache_beam.dataframe.transforms.DataframeTransform (which
can be done by
+ * passing --fully_qualified_name_glob commandline option when launching the
expansion service).
+ *
+ * <p>Note that, for using Dataflow Runner, you should specify the following
two additional
+ * arguments:
+ *
+ * <pre>{@code
+ * --experiments=use_runner_v2
+ *
--sdkHarnessContainerImageOverrides=.*python.*,gcr.io/apache-beam-testing/beam-sdk/beam_python3.8_sdk:latest
Review Comment:
Changed to use auto expansion service from PythonExternalTransform (However,
the example will not work without `--expansion_service` option until we release
a newer SDK version since PythonExternalTransform launches an expansion service
by installing a released SDK)
Issue Time Tracking
-------------------
Worklog Id: (was: 774198)
Time Spent: 7h 20m (was: 7h 10m)
> Adding testcases and examples for xlang Python DataframeTransform
> ------------------------------------------------------------------
>
> Key: BEAM-14471
> URL: https://issues.apache.org/jira/browse/BEAM-14471
> Project: Beam
> Issue Type: Improvement
> Components: cross-language, testing
> Reporter: Heejong Lee
> Assignee: Heejong Lee
> Priority: P2
> Time Spent: 7h 20m
> Remaining Estimate: 0h
>
> Adding testcases and examples for xlang Python DataframeTransform
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