[
https://issues.apache.org/jira/browse/BEAM-9894?focusedWorklogId=438719&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-438719
]
ASF GitHub Bot logged work on BEAM-9894:
----------------------------------------
Author: ASF GitHub Bot
Created on: 29/May/20 12:46
Start Date: 29/May/20 12:46
Worklog Time Spent: 10m
Work Description: purbanow commented on a change in pull request #11794:
URL: https://github.com/apache/beam/pull/11794#discussion_r432458477
##########
File path:
sdks/java/io/snowflake/src/main/java/org/apache/beam/sdk/io/snowflake/SnowflakeIO.java
##########
@@ -447,6 +494,346 @@ public void populateDisplayData(DisplayData.Builder
builder) {
}
}
+ /** Implementation of {@link #write()}. */
+ @AutoValue
+ public abstract static class Write<T> extends PTransform<PCollection<T>,
PDone> {
+ @Nullable
+ abstract SerializableFunction<Void, DataSource> getDataSourceProviderFn();
+
+ @Nullable
+ abstract String getTable();
+
+ @Nullable
+ abstract String getQuery();
+
+ @Nullable
+ abstract Location getLocation();
+
+ @Nullable
+ abstract String getFileNameTemplate();
+
+ @Nullable
+ abstract WriteDisposition getWriteDisposition();
+
+ @Nullable
+ abstract UserDataMapper getUserDataMapper();
+
+ @Nullable
+ abstract SnowflakeService getSnowflakeService();
+
+ abstract Builder<T> toBuilder();
+
+ @AutoValue.Builder
+ abstract static class Builder<T> {
+ abstract Builder<T> setDataSourceProviderFn(
+ SerializableFunction<Void, DataSource> dataSourceProviderFn);
+
+ abstract Builder<T> setTable(String table);
+
+ abstract Builder<T> setQuery(String query);
+
+ abstract Builder<T> setLocation(Location location);
+
+ abstract Builder<T> setFileNameTemplate(String fileNameTemplate);
+
+ abstract Builder<T> setUserDataMapper(UserDataMapper userDataMapper);
+
+ abstract Builder<T> setWriteDisposition(WriteDisposition
writeDisposition);
+
+ abstract Builder<T> setSnowflakeService(SnowflakeService
snowflakeService);
+
+ abstract Write<T> build();
+ }
+
+ /**
+ * Setting information about Snowflake server.
+ *
+ * @param config - An instance of {@link DataSourceConfiguration}.
+ */
+ public Write<T> withDataSourceConfiguration(final DataSourceConfiguration
config) {
+ return withDataSourceProviderFn(new
DataSourceProviderFromDataSourceConfiguration(config));
+ }
+
+ /**
+ * Setting function that will provide {@link DataSourceConfiguration} in
runtime.
+ *
+ * @param dataSourceProviderFn a {@link SerializableFunction}.
+ */
+ public Write<T> withDataSourceProviderFn(
+ SerializableFunction<Void, DataSource> dataSourceProviderFn) {
+ return toBuilder().setDataSourceProviderFn(dataSourceProviderFn).build();
+ }
+
+ /**
+ * A table name to be written in Snowflake.
+ *
+ * @param table - String with the name of the table.
+ */
+ public Write<T> to(String table) {
+ return toBuilder().setTable(table).build();
+ }
+
+ /**
+ * A query to be executed in Snowflake.
+ *
+ * @param query - String with query.
+ */
+ public Write<T> withQueryTransformation(String query) {
+ return toBuilder().setQuery(query).build();
+ }
+
+ /**
+ * A location object which contains connection config between Snowflake
and GCP.
+ *
+ * @param location - an instance of {@link Location}.
+ */
+ public Write<T> via(Location location) {
+ return toBuilder().setLocation(location).build();
+ }
+
+ /**
+ * A template name for files saved to GCP.
+ *
+ * @param fileNameTemplate - String with template name for files.
+ */
+ public Write<T> withFileNameTemplate(String fileNameTemplate) {
+ return toBuilder().setFileNameTemplate(fileNameTemplate).build();
+ }
+
+ /**
+ * User-defined function mapping user data into CSV lines.
+ *
+ * @param userDataMapper - an instance of {@link UserDataMapper}.
+ */
+ public Write<T> withUserDataMapper(UserDataMapper userDataMapper) {
+ return toBuilder().setUserDataMapper(userDataMapper).build();
+ }
+
+ /**
+ * A disposition to be used during writing to table phase.
+ *
+ * @param writeDisposition - an instance of {@link WriteDisposition}.
+ */
+ public Write<T> withWriteDisposition(WriteDisposition writeDisposition) {
+ return toBuilder().setWriteDisposition(writeDisposition).build();
+ }
+
+ /**
+ * A snowflake service which is supposed to be used. Note: Currently we
have {@link
+ * SnowflakeServiceImpl} with corresponding {@link
FakeSnowflakeServiceImpl} used for testing.
+ *
+ * @param snowflakeService - an instance of {@link SnowflakeService}.
+ */
+ public Write<T> withSnowflakeService(SnowflakeService snowflakeService) {
+ return toBuilder().setSnowflakeService(snowflakeService).build();
+ }
+
+ @Override
+ public PDone expand(PCollection<T> input) {
+ Location loc = getLocation();
+ checkArguments(loc);
+
+ String stagingBucketDir = String.format("%s/%s/",
loc.getStagingBucketName(), WRITE_TMP_PATH);
+
+ PCollection out = write(input, stagingBucketDir);
+ out.setCoder(StringUtf8Coder.of());
+
+ return PDone.in(out.getPipeline());
+ }
+
+ private void checkArguments(Location loc) {
+ checkArgument(loc != null, "via() is required");
+ checkArgument(
+ loc.getStorageIntegrationName() != null,
+ "location with storageIntegrationName is required");
Review comment:
Yes, it can be `nullable` for Write method. Thanks for spotting this :)
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Issue Time Tracking
-------------------
Worklog Id: (was: 438719)
Time Spent: 4h 50m (was: 4h 40m)
> Add batch SnowflakeIO.Write to Java SDK
> ---------------------------------------
>
> Key: BEAM-9894
> URL: https://issues.apache.org/jira/browse/BEAM-9894
> Project: Beam
> Issue Type: New Feature
> Components: io-ideas
> Reporter: Dariusz Aniszewski
> Assignee: Pawel Urbanowicz
> Priority: P2
> Time Spent: 4h 50m
> Remaining Estimate: 0h
>
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