feat: Adding setting KeepAlive to JsonWriter sample (#2104)

* feat: Adding setting KeepAlive to JsonWriter sample

* .

* .

* 🦉 Updates from OwlBot post-processor

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README.md

@@ -50,7 +50,7 @@ If you are using Maven without the BOM, add this to your dependencies:
 If you are using Gradle 5.x or later, add this to your dependencies:
 
 ```Groovy
-implementation platform('com.google.cloud:libraries-bom:26.13.0')
+implementation platform('com.google.cloud:libraries-bom:26.14.0')
 
 implementation 'com.google.cloud:google-cloud-bigquerystorage'
 ```

samples/snippets/src/main/java/com/example/bigquerystorage/WriteToDefaultStream.java

@@ -28,6 +28,7 @@
 import com.google.cloud.bigquery.TableResult;
 import com.google.cloud.bigquery.storage.v1.AppendRowsResponse;
 import com.google.cloud.bigquery.storage.v1.BigQueryWriteClient;
+import com.google.cloud.bigquery.storage.v1.BigQueryWriteSettings;
 import com.google.cloud.bigquery.storage.v1.Exceptions;
 import com.google.cloud.bigquery.storage.v1.Exceptions.AppendSerializationError;
 import com.google.cloud.bigquery.storage.v1.Exceptions.StorageException;
@@ -156,6 +157,13 @@ public void initialize(TableName parentTable)
           JsonStreamWriter.newBuilder(parentTable.toString(), BigQueryWriteClient.create())
               .setExecutorProvider(
                   FixedExecutorProvider.create(Executors.newScheduledThreadPool(100)))
+              .setChannelProvider(
+                  BigQueryWriteSettings.defaultGrpcTransportProviderBuilder()
+                      .setKeepAliveTime(org.threeten.bp.Duration.ofMinutes(1))
+                      .setKeepAliveTimeout(org.threeten.bp.Duration.ofMinutes(1))
+                      .setKeepAliveWithoutCalls(true)
+                      .setChannelsPerCpu(2)
+                      .build())
               .build();
     }