[
https://issues.apache.org/jira/browse/BEAM-6841?focusedWorklogId=220130&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-220130
]
ASF GitHub Bot logged work on BEAM-6841:
----------------------------------------
Author: ASF GitHub Bot
Created on: 28/Mar/19 16:44
Start Date: 28/Mar/19 16:44
Worklog Time Spent: 10m
Work Description: kmjung commented on pull request #8061: [BEAM-6841] Add
support for reading query results using the BigQuery storage API.
URL: https://github.com/apache/beam/pull/8061#discussion_r270097309
##########
File path:
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/BigQueryStorageQuerySource.java
##########
@@ -0,0 +1,137 @@
+/*
+ * 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.sdk.io.gcp.bigquery;
+
+import static
org.apache.beam.vendor.guava.v20_0.com.google.common.base.Preconditions.checkNotNull;
+
+import com.google.api.services.bigquery.model.Table;
+import com.google.api.services.bigquery.model.TableReference;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.util.concurrent.atomic.AtomicReference;
+import javax.annotation.Nullable;
+import org.apache.beam.sdk.annotations.Experimental;
+import org.apache.beam.sdk.coders.Coder;
+import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO.TypedRead.QueryPriority;
+import org.apache.beam.sdk.options.PipelineOptions;
+import org.apache.beam.sdk.options.ValueProvider;
+import org.apache.beam.sdk.transforms.SerializableFunction;
+import org.apache.beam.sdk.transforms.display.DisplayData;
+
+/** A {@link org.apache.beam.sdk.io.Source} representing reading the results
of a query. */
+@Experimental(Experimental.Kind.SOURCE_SINK)
+public class BigQueryStorageQuerySource<T> extends
BigQueryStorageSourceBase<T> {
+
+ public static <T> BigQueryStorageQuerySource<T> create(
+ String stepUuid,
+ ValueProvider<String> queryProvider,
+ Boolean flattenResults,
+ Boolean useLegacySql,
+ QueryPriority priority,
+ @Nullable String location,
+ @Nullable String kmsKey,
+ SerializableFunction<SchemaAndRecord, T> parseFn,
+ Coder<T> outputCoder,
+ BigQueryServices bqServices) {
+ return new BigQueryStorageQuerySource<>(
+ stepUuid,
+ queryProvider,
+ flattenResults,
+ useLegacySql,
+ priority,
+ location,
+ kmsKey,
+ parseFn,
+ outputCoder,
+ bqServices);
+ }
+
+ private final String stepUuid;
+ private final ValueProvider<String> queryProvider;
+ private final Boolean flattenResults;
+ private final Boolean useLegacySql;
+ private final QueryPriority priority;
+ private final String location;
+ private final String kmsKey;
+
+ private transient AtomicReference<BigQueryQueryHelper> queryHelperReference;
+
+ private BigQueryStorageQuerySource(
+ String stepUuid,
+ ValueProvider<String> queryProvider,
+ Boolean flattenResults,
+ Boolean useLegacySql,
+ QueryPriority priority,
+ @Nullable String location,
+ @Nullable String kmsKey,
+ SerializableFunction<SchemaAndRecord, T> parseFn,
+ Coder<T> outputCoder,
+ BigQueryServices bqServices) {
+ super(null, parseFn, outputCoder, bqServices);
+ this.stepUuid = checkNotNull(stepUuid, "stepUuid");
+ this.queryProvider = checkNotNull(queryProvider, "queryProvider");
+ this.flattenResults = checkNotNull(flattenResults, "flattenResults");
+ this.useLegacySql = checkNotNull(useLegacySql, "useLegacySql");
+ this.priority = checkNotNull(priority, "priority");
+ this.location = location;
+ this.kmsKey = kmsKey;
+ this.queryHelperReference = new AtomicReference<>();
+ }
+
+ private void readObject(ObjectInputStream in) throws ClassNotFoundException,
IOException {
+ in.defaultReadObject();
Review comment:
Done.
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Issue Time Tracking
-------------------
Worklog Id: (was: 220130)
Time Spent: 4h 50m (was: 4h 40m)
> Support reading query results with the BigQuery storage API
> -----------------------------------------------------------
>
> Key: BEAM-6841
> URL: https://issues.apache.org/jira/browse/BEAM-6841
> Project: Beam
> Issue Type: New Feature
> Components: io-java-gcp
> Reporter: Kenneth Jung
> Assignee: Kenneth Jung
> Priority: Minor
> Time Spent: 4h 50m
> Remaining Estimate: 0h
>
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