Class AllWiseAsciiStarTable

java.lang.Object
uk.ac.starlink.table.AbstractStarTable
uk.ac.starlink.table.formats.StreamStarTable
uk.ac.starlink.ttools.example.AllWiseAsciiStarTable
All Implemented Interfaces:
Closeable, AutoCloseable, uk.ac.starlink.table.StarTable
public class AllWiseAsciiStarTable extends uk.ac.starlink.table.formats.StreamStarTable
StarTable implementation which can read data from the AllWise data release. At time of writing these files are available from http://irsadist.ipac.caltech.edu/wise-allwise/. The files are formatted as pipe-separated ASCII, and optionally compressed. The metadata is stored in an external schema table file.
Since:
6 Feb 2014
Author:
Mark Taylor

  • Field Summary

    Fields inherited from class uk.ac.starlink.table.formats.StreamStarTable

    END

  • Constructor Summary

    Constructors
    Constructor
    Description
    AllWiseAsciiStarTable(uk.ac.starlink.util.DataSource datsrc, URL schemaUrl, long nrow)
    Constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    protected uk.ac.starlink.table.formats.RowEvaluator.Metadata
    obtainMetadata()
    Obtains metadata for the table by reading the schema provided at construction time.
    protected List<String>
    readRow(PushbackInputStream in)
     
    protected uk.ac.starlink.table.formats.RowEvaluator.Metadata
    readSchema(uk.ac.starlink.util.DataSource datsrc)
    Given a PostgreSQL/2MASS-type schema file, works out what the column metadata will look like for each column of the table.

    Methods inherited from class uk.ac.starlink.table.formats.StreamStarTable

    getColumnCount, getColumnInfo, getInputStream, getRowCount, getRowSequence, init

    Methods inherited from class uk.ac.starlink.table.AbstractStarTable

    checkedLongToInt, close, getCell, getColumnAuxDataInfos, getName, getParameters, getRow, getRowAccess, getRowSplittable, getURL, isRandom, setName, setParameters, setURL

    Methods inherited from class Object

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

    Methods inherited from interface uk.ac.starlink.table.StarTable

    getParameterByName, setParameter

  • Constructor Details

    • AllWiseAsciiStarTable

      public AllWiseAsciiStarTable(uk.ac.starlink.util.DataSource datsrc, URL schemaUrl, long nrow) throws IOException
      Constructor. You have to supply the number of rows that getRowCount will report.
      Parameters:
      datsrc - input data source
      schemaUrl - URL for 'schema' table which describes data types
      nrow - reported number of rows in table, -1 if unknown
      Throws:
      IOException

  • Method Details

    • readRow

      protected List<String> readRow(PushbackInputStream in) throws uk.ac.starlink.table.TableFormatException, IOException
      Specified by:
      readRow in class uk.ac.starlink.table.formats.StreamStarTable
      Throws:
      uk.ac.starlink.table.TableFormatException
      IOException

    • obtainMetadata

      protected uk.ac.starlink.table.formats.RowEvaluator.Metadata obtainMetadata() throws IOException
      Obtains metadata for the table by reading the schema provided at construction time.
      Specified by:
      obtainMetadata in class uk.ac.starlink.table.formats.StreamStarTable
      Throws:
      IOException

    • readSchema

      protected uk.ac.starlink.table.formats.RowEvaluator.Metadata readSchema(uk.ac.starlink.util.DataSource datsrc) throws IOException
      Given a PostgreSQL/2MASS-type schema file, works out what the column metadata will look like for each column of the table.
      Parameters:
      datsrc - data source for schema file
      Returns:
      metadata object
      Throws:
      IOException

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