Package edu.stanford.slac.archiverappliance.plain.parquet

Class EpicsWriteSupport<T extends com.google.protobuf.Message>

java.lang.Object
org.apache.parquet.hadoop.api.WriteSupport<T>
edu.stanford.slac.archiverappliance.plain.parquet.EpicsWriteSupport<T>
Type Parameters:
T -
public class EpicsWriteSupport<T extends com.google.protobuf.Message> extends org.apache.parquet.hadoop.api.WriteSupport<T>
A Parquet write support for EPICS Archiver Appliance data.

  • Nested Class Summary

    Nested classes/interfaces inherited from class org.apache.parquet.hadoop.api.WriteSupport

    org.apache.parquet.hadoop.api.WriteSupport.FinalizedWriteContext, org.apache.parquet.hadoop.api.WriteSupport.WriteContext

  • Method Summary

    Modifier and Type
    Method
    Description
    org.apache.parquet.hadoop.api.WriteSupport.WriteContext
    init(org.apache.hadoop.conf.Configuration configuration)
    Initializes the write support.
    void
    prepareForWrite(org.apache.parquet.io.api.RecordConsumer recordConsumer)
    Closes the write support.
    void
    write(T record)
    Writes a record to the record consumer.

    Methods inherited from class org.apache.parquet.hadoop.api.WriteSupport

    finalizeWrite, getName, init

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Method Details

    • init

      public org.apache.parquet.hadoop.api.WriteSupport.WriteContext init(org.apache.hadoop.conf.Configuration configuration)
      Initializes the write support.
      Specified by:
      init in class org.apache.parquet.hadoop.api.WriteSupport<T extends com.google.protobuf.Message>
      Parameters:
      configuration - the job's configuration
      Returns:
      the write context

    • prepareForWrite

      public void prepareForWrite(org.apache.parquet.io.api.RecordConsumer recordConsumer)
      Closes the write support.
      Specified by:
      prepareForWrite in class org.apache.parquet.hadoop.api.WriteSupport<T extends com.google.protobuf.Message>
      Parameters:
      recordConsumer - the recordConsumer to write to

    • write

      public void write(T record)
      Writes a record to the record consumer.
      Specified by:
      write in class org.apache.parquet.hadoop.api.WriteSupport<T extends com.google.protobuf.Message>
      Parameters:
      record - one record to write to the previously provided record consumer