Class PslSparkUtils (1.0.0)

public class PslSparkUtils

Inheritance

java.lang.Object > PslSparkUtils

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Methods

convertAttributesToSparkMap(ListMultimap<String,ByteString> attributeMap)

public static ArrayBasedMapData convertAttributesToSparkMap(ListMultimap<String,ByteString> attributeMap)

Parameter
Name	Description
`attributeMap`	`com.google.common.collect.ListMultimap<String,ByteString>`

Returns
Type	Description
`org.apache.spark.sql.catalyst.util.ArrayBasedMapData`

getSparkEndOffset(SparkSourceOffset headOffset, SparkSourceOffset startOffset, long maxMessagesPerBatch, long topicPartitionCount)

public static SparkSourceOffset getSparkEndOffset(SparkSourceOffset headOffset, SparkSourceOffset startOffset, long maxMessagesPerBatch, long topicPartitionCount)

Parameters
Name	Description
`headOffset`	`SparkSourceOffset`
`startOffset`	`SparkSourceOffset`
`maxMessagesPerBatch`	`long`
`topicPartitionCount`	`long`

Returns
Type	Description
`SparkSourceOffset`

toInternalRow(SequencedMessage msg, SubscriptionPath subscription, Partition partition)

public static InternalRow toInternalRow(SequencedMessage msg, SubscriptionPath subscription, Partition partition)

Parameters
Name	Description
`msg`	`com.google.cloud.pubsublite.SequencedMessage`
`subscription`	`com.google.cloud.pubsublite.SubscriptionPath`
`partition`	`com.google.cloud.pubsublite.Partition`

Returns
Type	Description
`org.apache.spark.sql.catalyst.InternalRow`

toPslPartitionOffset(SparkPartitionOffset sparkPartitionOffset)

public static PslPartitionOffset toPslPartitionOffset(SparkPartitionOffset sparkPartitionOffset)

Parameter
Name	Description
`sparkPartitionOffset`	`com.google.cloud.pubsublite.spark.SparkPartitionOffset`

Returns
Type	Description
`PslPartitionOffset`

toPslSourceOffset(SparkSourceOffset sparkSourceOffset)

public static PslSourceOffset toPslSourceOffset(SparkSourceOffset sparkSourceOffset)

Parameter
Name	Description
`sparkSourceOffset`	`SparkSourceOffset`

Returns
Type	Description
`PslSourceOffset`

toPubSubMessage(StructType inputSchema, InternalRow row)

public static Message toPubSubMessage(StructType inputSchema, InternalRow row)

Parameters
Name	Description
`inputSchema`	`org.apache.spark.sql.types.StructType`
`row`	`org.apache.spark.sql.catalyst.InternalRow`

Returns
Type	Description
`com.google.cloud.pubsublite.Message`

toSparkSourceOffset(PslSourceOffset pslSourceOffset)

public static SparkSourceOffset toSparkSourceOffset(PslSourceOffset pslSourceOffset)

Parameter
Name	Description
`pslSourceOffset`	`PslSourceOffset`

Returns
Type	Description
`SparkSourceOffset`

verifyWriteInputSchema(StructType inputSchema)

public static void verifyWriteInputSchema(StructType inputSchema)

Make sure data fields for publish have expected Spark DataType if they exist.

Parameter
Name	Description
`inputSchema`	`org.apache.spark.sql.types.StructType` input table schema to write to Pub/Sub Lite.

Constructors

PslSparkUtils()

public PslSparkUtils()