Package es.uam.eps.ir.relison.io.graph

Class BinaryGraphReader

java.lang.Object
es.uam.eps.ir.relison.io.graph.BinaryGraphReader
All Implemented Interfaces:
GraphReader<java.lang.Long>
public class BinaryGraphReader
extends java.lang.Object
implements GraphReader<java.lang.Long>
Class for reading graph from binary files

  • Constructor Summary

    Constructors 
    Constructor Description
    BinaryGraphReader()  

  • Method Summary

    Modifier and Type Method Description
    Graph<java.lang.Long> read​(java.io.InputStream stream)
    Given an input stream, reads a file from it (for reading embedded graphs in greater files).
    Graph<java.lang.Long> read​(java.io.InputStream stream, boolean readWeights, boolean readTypes)
    Given an input stream, reads a file from it (for reading embedded graphs in greater files).
    Graph<java.lang.Long> read​(java.io.InputStream stream, boolean readWeights, boolean readTypes, Index<java.lang.Long> users)
    Given an input stream, reads a file from it (for reading embedded graphs in greater files).
    Graph<java.lang.Long> read​(java.lang.String file)
    Given a file, reads a graph.
    Graph<java.lang.Long> read​(java.lang.String file, boolean readWeights, boolean readTypes)
    Given a file, reads a graph.
    Graph<java.lang.Long> read​(java.lang.String file, boolean readWeights, boolean readTypes, Index<java.lang.Long> users)
    Given an file, reads a graph.
    private Graph<java.lang.Long> readMultiGraph​(java.io.InputStream stream, boolean directed, boolean weighted, boolean readWeights, boolean readTypes)
    Reads a multigraph from an input stream reading a binary file
    private Graph<java.lang.Long> readMultiGraph​(java.io.InputStream stream, boolean directed, boolean weighted, boolean readWeights, boolean readTypes, Index<java.lang.Long> users)
    Reads a multigraph from an input stream reading a binary file.
    private Graph<java.lang.Long> readSimpleGraph​(java.io.InputStream stream, boolean directed, boolean weighted, boolean readWeights, boolean readTypes)
    Reads a graph from an input stream reading a binary file.
    private Graph<java.lang.Long> readSimpleGraph​(java.io.InputStream stream, boolean directed, boolean weighted, boolean readWeights, boolean readTypes, Index<java.lang.Long> users)
    Reads a graph from an input stream reading a binary file.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

  • Method Details

    • read

      public Graph<java.lang.Long> read​(java.lang.String file)
      Description copied from interface: GraphReader
      Given a file, reads a graph.
      Specified by:
      read in interface GraphReader<java.lang.Long>
      Parameters:
      file - The file containing the nodes.
      Returns:
      the graph if everything goes ok, null otherwise.

    • read

      public Graph<java.lang.Long> read​(java.lang.String file, boolean readWeights, boolean readTypes)
      Description copied from interface: GraphReader
      Given a file, reads a graph.
      Specified by:
      read in interface GraphReader<java.lang.Long>
      Parameters:
      file - The file containing the graph.
      readWeights - True if the file contains weights, false otherwise.
      readTypes - True if the file contains types, false otherwise.
      Returns:
      the graph if everything goes ok, null otherwise.

    • read

      public Graph<java.lang.Long> read​(java.io.InputStream stream)
      Description copied from interface: GraphReader
      Given an input stream, reads a file from it (for reading embedded graphs in greater files). By default, assumes the graph contains information about weights, but not about types.
      Specified by:
      read in interface GraphReader<java.lang.Long>
      Parameters:
      stream - The input stream we read the graph from.
      Returns:
      the graph if everything goes ok, null otherwise.

    • read

      public Graph<java.lang.Long> read​(java.io.InputStream stream, boolean readWeights, boolean readTypes)
      Description copied from interface: GraphReader
      Given an input stream, reads a file from it (for reading embedded graphs in greater files).
      Specified by:
      read in interface GraphReader<java.lang.Long>
      Parameters:
      stream - The input stream we read the graph from.
      readWeights - True if the file contains weights, false otherwise.
      readTypes - True if the file contains graph types.
      Returns:
      the graph if everything goes ok, null otherwise.

    • readMultiGraph

      private Graph<java.lang.Long> readMultiGraph​(java.io.InputStream stream, boolean directed, boolean weighted, boolean readWeights, boolean readTypes)
      Reads a multigraph from an input stream reading a binary file
      Parameters:
      stream - the input stream
      directed - true if the graph is directed, false otherwise.
      weighted - true if the graph is weighted, false otherwise.
      readWeights - true if weights have to be read.
      readTypes - true if types have to be read.
      Returns:
      the multigraph.

    • readSimpleGraph

      private Graph<java.lang.Long> readSimpleGraph​(java.io.InputStream stream, boolean directed, boolean weighted, boolean readWeights, boolean readTypes) throws java.io.IOException
      Reads a graph from an input stream reading a binary file.
      Parameters:
      stream - the input stream.
      directed - true if the graph is directed, false otherwise.
      weighted - true if the graph is weighted, false otherwise.
      readWeights - true if weights have to be read.
      readTypes - true if types have to be read.
      Returns:
      the graph.
      Throws:
      java.io.IOException - if something fails during the reading.

    • read

      public Graph<java.lang.Long> read​(java.lang.String file, boolean readWeights, boolean readTypes, Index<java.lang.Long> users)
      Description copied from interface: GraphReader
      Given an file, reads a graph.
      Specified by:
      read in interface GraphReader<java.lang.Long>
      Parameters:
      file - The file containing the graph.
      readWeights - True if the file contains weights, false otherwise.
      readTypes - True if the file contains graph types.
      users - An index containing the nodes in the network.
      Returns:
      the graph if everything goes ok, null otherwise.

    • read

      public Graph<java.lang.Long> read​(java.io.InputStream stream, boolean readWeights, boolean readTypes, Index<java.lang.Long> users)
      Description copied from interface: GraphReader
      Given an input stream, reads a file from it (for reading embedded graphs in greater files).
      Specified by:
      read in interface GraphReader<java.lang.Long>
      Parameters:
      stream - The input stream we read the graph from.
      readWeights - True if the file contains weights, false otherwise.
      readTypes - True if the file contains graph types.
      users - An index containing the nodes in the network.
      Returns:
      the graph if everything goes ok, null otherwise.

    • readMultiGraph

      private Graph<java.lang.Long> readMultiGraph​(java.io.InputStream stream, boolean directed, boolean weighted, boolean readWeights, boolean readTypes, Index<java.lang.Long> users)
      Reads a multigraph from an input stream reading a binary file.
      Parameters:
      stream - the input stream
      directed - true if the graph is directed, false otherwise.
      weighted - true if the graph is weighted, false otherwise.
      readWeights - true if weights have to be read.
      readTypes - true if types have to be read.
      users - a user index.
      Returns:
      the multigraph.

    • readSimpleGraph

      private Graph<java.lang.Long> readSimpleGraph​(java.io.InputStream stream, boolean directed, boolean weighted, boolean readWeights, boolean readTypes, Index<java.lang.Long> users) throws java.io.IOException
      Reads a graph from an input stream reading a binary file.
      Parameters:
      stream - the input stream.
      directed - true if the graph is directed, false otherwise.
      weighted - true if the graph is weighted, false otherwise.
      readWeights - true if weights have to be read.
      readTypes - true if types have to be read.
      users - a user index.
      Returns:
      the graph.
      Throws:
      java.io.IOException - if something fails during the reading.