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https://issues.apache.org/jira/browse/BEAM-7557?focusedWorklogId=271209&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-271209
]
ASF GitHub Bot logged work on BEAM-7557:
----------------------------------------
Author: ASF GitHub Bot
Created on: 02/Jul/19 20:55
Start Date: 02/Jul/19 20:55
Worklog Time Spent: 10m
Work Description: iemejia commented on pull request #8987: [BEAM-7557] -
Migrate DynamoDBIO to AWS SDK for Java 2
URL: https://github.com/apache/beam/pull/8987#discussion_r299649344
##########
File path:
sdks/java/io/amazon-web-services2/src/main/java/org/apache/beam/sdk/io/aws2/dynamodb/AttributeValueCoder.java
##########
@@ -0,0 +1,159 @@
+/*
+ * 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.aws2.dynamodb;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.List;
+import java.util.stream.Collectors;
+import org.apache.beam.sdk.coders.AtomicCoder;
+import org.apache.beam.sdk.coders.BooleanCoder;
+import org.apache.beam.sdk.coders.ByteArrayCoder;
+import org.apache.beam.sdk.coders.Coder;
+import org.apache.beam.sdk.coders.CoderException;
+import org.apache.beam.sdk.coders.ListCoder;
+import org.apache.beam.sdk.coders.MapCoder;
+import org.apache.beam.sdk.coders.StringUtf8Coder;
+import software.amazon.awssdk.core.SdkBytes;
+import software.amazon.awssdk.services.dynamodb.model.AttributeValue;
+
+/** A {@link Coder} that serializes and deserializes the {@link
AttributeValue} objects. */
+public class AttributeValueCoder extends AtomicCoder<AttributeValue> {
+
+ /** Data type of each value type in AttributeValue object. */
+ private enum AttributeValueType {
+ s, // for String
+ n, // for Number
+ b, // for Byte
+ ss, // for List of String
+ ns, // for List of Number
+ bs, // for List of Byte
+ m, // for Map of String and AttributeValue
+ l, // for list of AttributeValue
+ bool, // for Boolean
+ nul, // for null
+ }
+
+ private static final AttributeValueCoder INSTANCE = new
AttributeValueCoder();
+
+ private static final ListCoder<String> LIST_STRING_CODER =
ListCoder.of(StringUtf8Coder.of());
+ private static final ListCoder<byte[]> LIST_BYTE_CODER =
ListCoder.of(ByteArrayCoder.of());
+
+ private static final ListCoder<AttributeValue> LIST_ATTRIBUTE_CODER =
+ ListCoder.of(AttributeValueCoder.of());
+ private static final MapCoder<String, AttributeValue> MAP_ATTRIBUTE_CODER =
+ MapCoder.of(StringUtf8Coder.of(), AttributeValueCoder.of());
+
+ private AttributeValueCoder() {}
+
+ public static AttributeValueCoder of() {
+ return INSTANCE;
+ }
+
+ @Override
+ public void encode(AttributeValue value, OutputStream outStream) throws
IOException {
+
Review comment:
remove whitespace
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Issue Time Tracking
-------------------
Worklog Id: (was: 271209)
Time Spent: 1h 10m (was: 1h)
> Migrate DynamoDBIO to AWS SDK for Java 2
> ----------------------------------------
>
> Key: BEAM-7557
> URL: https://issues.apache.org/jira/browse/BEAM-7557
> Project: Beam
> Issue Type: Sub-task
> Components: io-java-aws
> Reporter: Ismaël Mejía
> Assignee: Cam Mach
> Priority: Minor
> Labels: backward-incompatible
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> DynamoDBIO uses the old style API ScanRequestAPI, translating into the
> ScanSpec
> API can bring us improvements because we can eventually align Scans and
> Querys
> in the DynamoDBIO API. Also this is needed for migration to AWS SDK for Java
> 2.x.
> We should use for this the new ScanSpec API.
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