Class CsvSampleWriter

All Implemented Interfaces:
Closeable, AutoCloseable

public class CsvSampleWriter extends AbstractSampleWriter
Class to be used to write samples to a csv destination (OutputStream, Writer or a File).

This class handles csv header writing with the writeHeader method. This method has to be called by user for the header to be written.

Since:
3.0
  • Constructor Details

    • CsvSampleWriter

      public CsvSampleWriter(SampleMetadata metadata)
      The new instance has to be supplied with a Writer to work properly.
      Parameters:
      metadata - the description for data that this writer will write (metadata must not be null).
    • CsvSampleWriter

      public CsvSampleWriter(Writer output, SampleMetadata metadata)
      Parameters:
      output - the writer to write data to. (Must not be null)
      metadata - the description for data that this writer will write. ( metadata must not be null.)
    • CsvSampleWriter

      public CsvSampleWriter(OutputStream output, SampleMetadata metadata)
      Parameters:
      output - the output stream to write data to. (Must not be null)
      metadata - the description for data that this writer will write. ( metadata must not be null.)
    • CsvSampleWriter

      public CsvSampleWriter(File output, SampleMetadata metadata)
      Parameters:
      output - the output file to write data to. (Must not be null)
      metadata - the description for data that this writer will write. ( metadata must not be null.)
  • Method Details

    • setSeparator

      public void setSeparator(char separator)
      Set the char to use for separation of data in a line.
      Parameters:
      separator - to use
    • setWriter

      public void setWriter(Writer writer)
      Description copied from class: AbstractSampleWriter
      Set the new writer on which samples will be written by this sample writer.
      If any writer exists on the sample writer, it is flushed and closed before being replaced by the new one.
      Overrides:
      setWriter in class AbstractSampleWriter
      Parameters:
      writer - The destination writer where samples will be written by this sample writer
    • writeHeader

      public void writeHeader()
      Write the csv header. If samples have already been written then a row with header information will be written in the middle of the file.
    • write

      public long write(Sample sample)
      Description copied from class: SampleWriter
      Write a sample to the underlying destination
      Specified by:
      write in class SampleWriter
      Parameters:
      sample - The sample to be written (Must not be null)
      Returns:
      The number of samples written at this time to the underlying destination