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https://issues.apache.org/jira/browse/BEAM-12164?focusedWorklogId=704912&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-704912
]
ASF GitHub Bot logged work on BEAM-12164:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 07/Jan/22 05:41
Start Date: 07/Jan/22 05:41
Worklog Time Spent: 10m
Work Description: thiagotnunes commented on a change in pull request
#16203:
URL: https://github.com/apache/beam/pull/16203#discussion_r780039090
##########
File path:
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/spanner/changestreams/mapper/ChangeStreamRecordMapper.java
##########
@@ -0,0 +1,324 @@
+/*
+ * 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.spanner.changestreams.mapper;
+
+import com.google.cloud.Timestamp;
+import com.google.cloud.spanner.Struct;
+import java.util.HashSet;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import
org.apache.beam.sdk.io.gcp.spanner.changestreams.dao.ChangeStreamResultSetMetadata;
+import
org.apache.beam.sdk.io.gcp.spanner.changestreams.model.ChangeStreamRecord;
+import
org.apache.beam.sdk.io.gcp.spanner.changestreams.model.ChangeStreamRecordMetadata;
+import org.apache.beam.sdk.io.gcp.spanner.changestreams.model.ChildPartition;
+import
org.apache.beam.sdk.io.gcp.spanner.changestreams.model.ChildPartitionsRecord;
+import org.apache.beam.sdk.io.gcp.spanner.changestreams.model.ColumnType;
+import org.apache.beam.sdk.io.gcp.spanner.changestreams.model.DataChangeRecord;
+import org.apache.beam.sdk.io.gcp.spanner.changestreams.model.HeartbeatRecord;
+import org.apache.beam.sdk.io.gcp.spanner.changestreams.model.InitialPartition;
+import org.apache.beam.sdk.io.gcp.spanner.changestreams.model.Mod;
+import org.apache.beam.sdk.io.gcp.spanner.changestreams.model.ModType;
+import
org.apache.beam.sdk.io.gcp.spanner.changestreams.model.PartitionMetadata;
+import org.apache.beam.sdk.io.gcp.spanner.changestreams.model.TypeCode;
+import org.apache.beam.sdk.io.gcp.spanner.changestreams.model.ValueCaptureType;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Sets;
+
+/**
+ * This class is responsible for transforming a {@link Struct} to a {@link
List} of {@link
+ * ChangeStreamRecord} models.
+ */
+public class ChangeStreamRecordMapper {
+
+ private static final String DATA_CHANGE_RECORD_COLUMN = "data_change_record";
Review comment:
Good idea. We don't have public documentation at the moment, so I will
link to the private documentation for now.
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Issue Time Tracking
-------------------
Worklog Id: (was: 704912)
Time Spent: 5h 20m (was: 5h 10m)
> SpannerIO Change Stream Connector
> ---------------------------------
>
> Key: BEAM-12164
> URL: https://issues.apache.org/jira/browse/BEAM-12164
> Project: Beam
> Issue Type: New Feature
> Components: sdk-java-core
> Reporter: Thiago Nunes
> Priority: P3
> Time Spent: 5h 20m
> Remaining Estimate: 0h
>
> We would like to augment the existing Google Cloud SpannerIO connector
> ([https://github.com/apache/beam/blob/master/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/spanner/SpannerIO.java)]
> with the support for Spanner Change Streams (CDC). CDC support is just being
> implemented in Spanner and it will be exposed through a gRPC API. We will use
> such API to create a new SpannerIO.readChangeStream(...) implementation.
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