Package com.complexible.common.rdf.random

Class RandomStream

  • All Implemented Interfaces:
    RDFStream, java.io.Closeable, java.lang.AutoCloseable
    public class RandomStream
extends java.lang.Object
implements RDFStream

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static class  RandomStream.Factory  

    • Constructor Summary

      Constructors 
      Constructor Description
      RandomStream​(long seed, long cnt)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      long bytesRead()
      Supposed to return the number currently parsed.
      void close()  
      long estimatedCount()
      Estimated size of statements.
      Resource getContext()
      Returns the default context associated with this stream or null if there is no default context.
      java.lang.String getName()
      Returns the name of this stream.
      boolean hasContext()
      Returns true either if this stream has a non-null context or the statements generated by this stream has contexts.
      long length()  
      void parse​(RDFHandler handler)
      Parses the stream and passes the statements to the given handler.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • RandomStream

        public RandomStream​(long seed,
                    long cnt)

    • Method Detail

      • parse

        public void parse​(RDFHandler handler)
        Description copied from interface: RDFStream
        Parses the stream and passes the statements to the given handler.
        Specified by:
        parse in interface RDFStream

      • getContext

        public Resource getContext()
        Description copied from interface: RDFStream
        Returns the default context associated with this stream or null if there is no default context. Note that, the statements that will be sent to the handler may not be using this context and the user of this stream should make sure the context information is used correctly.
        Specified by:
        getContext in interface RDFStream

      • hasContext

        public boolean hasContext()
        Description copied from interface: RDFStream
        Returns true either if this stream has a non-null context or the statements generated by this stream has contexts.
        Specified by:
        hasContext in interface RDFStream

      • getName

        public java.lang.String getName()
        Description copied from interface: RDFStream
        Returns the name of this stream. If the stream is backed by a file this will return the file's name. Otherwise it might be an auto-generated name or some other (not necessarily unique) name.
        Specified by:
        getName in interface RDFStream

      • close

        public void close()
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable

      • bytesRead

        public long bytesRead()
        Description copied from interface: RDFStream
        Supposed to return the number currently parsed. Can be used for progress reporting from RDFHandler
        Specified by:
        bytesRead in interface RDFStream
        Returns:
        Number of bytes parsed

      • length

        public long length()
        Specified by:
        length in interface RDFStream
        Returns:
        Length in bytes of underlying data

      • estimatedCount

        public long estimatedCount()
        Description copied from interface: RDFStream
        Estimated size of statements. Might be accurate or calculate only from the data size. Given N bytes in an RDFStream, the estimated number of statements depends on the RDF format. RDF stream may or may not be compressed, which also impacts the bytes-to-statements ratio.
        Specified by:
        estimatedCount in interface RDFStream
        Returns:
        estimated size of statements.