[jira] [Work logged] (BEAM-3925) Allow ValueProvider for KafkaIO

[ASF GitHub Bot (JIRA)]

     [ 
https://issues.apache.org/jira/browse/BEAM-3925?focusedWorklogId=95637&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-95637
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ASF GitHub Bot logged work on BEAM-3925:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 26/Apr/18 17:02
            Start Date: 26/Apr/18 17:02
    Worklog Time Spent: 10m 
      Work Description: rangadi commented on a change in pull request #5141: 
[BEAM-3925] Allow ValueProvider for KafkaIO so that we can create Beam 
Templates using KafkaIO
URL: https://github.com/apache/beam/pull/5141#discussion_r184173372
 
 

 ##########
 File path: 
sdks/java/io/kafka/src/main/java/org/apache/beam/sdk/io/kafka/KafkaIO.java
 ##########
 @@ -360,32 +387,85 @@
      * of how the partitions are distributed among the splits.
      */
     public Read<K, V> withTopicPartitions(List<TopicPartition> 
topicPartitions) {
-      checkState(getTopics().isEmpty(), "Only topics or topicPartitions can be 
set, not both");
-      return 
toBuilder().setTopicPartitions(ImmutableList.copyOf(topicPartitions)).build();
+      return 
withTopicPartitions(ValueProvider.StaticValueProvider.of(topicPartitions));
+    }
+
+    /**
+     * Like above but with a {@link ValueProvider 
ValueProvider&lt;List&lt;TopicPartition&gt;&gt;}.
+     *
+     */
+    public Read<K, V> withTopicPartitions(ValueProvider<List<TopicPartition>> 
topicPartitions) {
+      checkArgument(
+          getTopics().isAccessible(),
+          "Only topics or topicPartitions can be set, not both");
+      return toBuilder().setTopicPartitions(topicPartitions).build();
     }
 
     /**
-     * Sets a Kafka {@link Deserializer} to interpret key bytes read from 
Kafka.
+     * Sets a Kafka {@link Deserializer Deserializer&lt;K&gt;} for 
interpreting key bytes read.
+     * This uses the {@link String} provided to set the Deserializer
+     */
+    public Read<K, V> withKeyDeserializerClassName(String keyDeserializer) {
+      return 
withKeyDeserializerClassName(ValueProvider.StaticValueProvider.of(keyDeserializer));
+    }
+
+    /**
+     * Like above but with a {@link ValueProvider ValueProvider&lt;String&gt;}.
 
 Review comment:
   `{@link ValueProvider ValueProvider&lt;String&gt;}.` looks odd. Please fix 
these links every where in the PR.

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Issue Time Tracking
-------------------

    Worklog Id:     (was: 95637)

> Allow ValueProvider for KafkaIO
> -------------------------------
>
>                 Key: BEAM-3925
>                 URL: https://issues.apache.org/jira/browse/BEAM-3925
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-java-core
>            Reporter: Sameer Abhyankar
>            Assignee: Pramod Upamanyu
>            Priority: Major
>          Time Spent: 3h 50m
>  Remaining Estimate: 0h
>
> Add ValueProvider support for the various methods in KafkaIO. This would 
> allow us to use KafkaIO in reusable pipeline templates.



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