Package gorsat.process

Class NordIterator

  • All Implemented Interfaces:
    java.lang.AutoCloseable, java.util.Iterator<org.gorpipe.gor.model.Row>
    public class NordIterator
extends org.gorpipe.model.gor.iterators.RowSource

    Iterator to access data from a nor dictionary file.

    Nor dictionary file is a file to tag mapping where the iterator represents the data as a continuous stream. The nor dictionary iterator supports filtering from an input filter array. An empty filter array indicates no filter. Results from the nor dictionary iterator contains the original source plus a source column which contains the originating tag for the row. Filters can be silenced and a custom source column name can be applied. All files in the nor dictionary are relative to the dictionary file unless a full path is specified.

    Nor dictionary supports header which starts with #. All lines starting with # are ignored from the dictionary. All header entries starting with ##[key]=[value] are treated as key value pairs. Nord files support the 'Source' keyword for naming the source column. If no Source reference is set in the nor dictionary file or no source is set with the -s option, the source column is not shown.

    Example of a nor dictionary:

    ##Source=phenotype

    #Source\tTag\n

    ./nor/file1.tsv\tPatient_1\n

    ./nor/file2.tsv\tPatient_2\n

    ./nor/file3.tsv\tPatient_3\n

    #./nor/file4.tsv\tPatient_4\n -> Ignored

    Nor dictionaries do not support bucketization as there only one file open at a time.

    • Nested Class Summary

      • Nested classes/interfaces inherited from class org.gorpipe.gor.model.GenomicIterator

        org.gorpipe.gor.model.GenomicIterator.ChromoLookup

    • Constructor Summary

      Constructors 
      Constructor Description
      NordIterator​(java.lang.String nordFile, boolean useFilter, java.lang.String[] filterEntries, java.lang.String sourceColumnName, boolean ignoreMissingEntries, boolean forceReadOfHeader)
      Nor dictionary constructor.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()  
      boolean hasNext()  
      void init​(org.gorpipe.gor.session.GorSession session)  
      org.gorpipe.gor.model.Row next()  
      void setPosition​(java.lang.String seekChr, int seekPos)  

      • Methods inherited from class org.gorpipe.model.gor.iterators.RowSource

        bufferSize, bufferSize_$eq, clone, getAvgBasesPerMilliSecond, getAvgBatchSize, getAvgRowsPerMilliSecond, getAvgSeekTimeMilliSecond, getBufferSize, getCurrentBatchLoc, getCurrentBatchRow, getCurrentBatchSize, getEx, getGorHeader, getParent, isBuffered, moveToPosition, moveToPosition$default$3, next, parent, parent_$eq, seek, setBufferSize, setEx, setParent, terminateReading

      • Methods inherited from class org.gorpipe.gor.model.GenomicIterator

        decStat, filter, getColnum, getContext, getHeader, getLookup, getMonitor, getSourceName, incStat, initStats, isSourceAlreadyInserted, pushdownCalc, pushdownCmd, pushdownFilter, pushdownGor, pushdownSelect, pushdownTop, pushdownWrite, seek, select, selectHeader, setColnum, setContext, setHeader, setSourceAlreadyInserted, setSourceName

      • Methods inherited from class java.lang.Object

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

      • Methods inherited from interface java.util.Iterator

        forEachRemaining, remove

    • Constructor Detail

      • NordIterator

        public NordIterator​(java.lang.String nordFile,
                    boolean useFilter,
                    java.lang.String[] filterEntries,
                    java.lang.String sourceColumnName,
                    boolean ignoreMissingEntries,
                    boolean forceReadOfHeader)
        Nor dictionary constructor. Creates an instance of nor dictionary iterator, see class description.
        Parameters:
        nordFile - Nor dictionary file path
        filterEntries - Array of tags to be inclusively filtered.
        sourceColumnName - Name of the ouput source column
        ignoreMissingEntries - Indicates if missing entries should be ignored or not. Not ignoring missing entries will throw a parsing exception.
        forceReadOfHeader - Force the read of headers in the source files.

    • Method Detail

      • close

        public void close()
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in class org.gorpipe.model.gor.iterators.RowSource

      • hasNext

        public boolean hasNext()
        Specified by:
        hasNext in interface java.util.Iterator<org.gorpipe.gor.model.Row>
        Overrides:
        hasNext in class org.gorpipe.gor.model.GenomicIterator

      • next

        public org.gorpipe.gor.model.Row next()
        Specified by:
        next in interface java.util.Iterator<org.gorpipe.gor.model.Row>
        Overrides:
        next in class org.gorpipe.gor.model.GenomicIterator

      • setPosition

        public void setPosition​(java.lang.String seekChr,
                        int seekPos)
        Overrides:
        setPosition in class org.gorpipe.model.gor.iterators.RowSource

      • init

        public void init​(org.gorpipe.gor.session.GorSession session)
        Overrides:
        init in class org.gorpipe.gor.model.GenomicIterator