Class DotParser

  • All Implemented Interfaces:
    GraphConstants

    public class DotParser
    extends java.lang.Object
    implements GraphConstants
    This class parses input in DOT format, and builds the datastructures that are passed to it. It is NOT 100% compatible with the DOT format. The GraphNode and GraphEdge classes do not have any provision for dealing with different colours or shapes of nodes, there can however, be a different label and ID for a node. It also does not do anything for labels for edges. However, this class won't crash or throw an exception if it encounters any of the above attributes of an edge or a node. This class however, won't be able to deal with things like subgraphs and grouping of nodes.
    Version:
    $Revision: 7059 $ - 23 Apr 2003 - Initial version (Ashraf M. Kibriya)
    Author:
    Ashraf M. Kibriya (amk14@cs.waikato.ac.nz)
    • Constructor Detail

      • DotParser

        public DotParser​(java.io.Reader input,
                         FastVector nodes,
                         FastVector edges)
        Dot parser Constructor
        Parameters:
        input - - The input, if passing in a string then encapsulate that in String reader object
        nodes - - Vector to put in GraphNode objects, corresponding to the nodes parsed in from the input
        edges - - Vector to put in GraphEdge objects, corresponding to the edges parsed in from the input
    • Method Detail

      • parse

        public java.lang.String parse()
        This method parses the string or the InputStream that we passed in through the constructor and builds up the m_nodes and m_edges vectors
        Returns:
        - returns the name of the graph
      • writeDOT

        public static void writeDOT​(java.lang.String filename,
                                    java.lang.String graphName,
                                    FastVector nodes,
                                    FastVector edges)
        This method saves a graph in a file in DOT format. However, if reloaded in GraphVisualizer we would need to layout the graph again.
        Parameters:
        filename - - The name of the file to write in. (will overwrite)
        graphName - - The name of the graph
        nodes - - Vector containing all the nodes
        edges - - Vector containing all the edges