org.jgrapht.ext

Class DOTImporter<V,E>

java.lang.Object

org.jgrapht.ext.DOTImporter<V,E>

public class DOTImporter<V,E>
extends Object

Imports a graph from a DOT file.

For a description of the format see http://en.wikipedia.org/wiki/DOT_language and http://www.graphviz.org/doc/info/lang.html

state machine description (In dot format naturally):

 digraph G {
    1 [label="start" description="Entry point"];
    2 [label="header" description="Processing The header"];
    3 [label="next" description="work out what the type of the next node is"];
    4 [label="edge" description="process an edge entry"];
    5 [label="edge_quotes" description="process a section of an edge in quotes"];
    6 [label="node" description="process a node entry"];
    7 [label="node_quotes" description="process a section of a node in quotes"];
    8 [label="line_comment" description="process and ignore a line comment"];
    9 [label="block_comment" description="process and ignore a block comment"];
    10 [label="done" description="exit point"];
    1 -> 2;
    2 -> 3;
    3 -> 4;
    4 -> 3;
    4 -> 5;
    5 -> 4;
    3 -> 6;
    6 -> 3;
    6 -> 7;
    7 -> 6;
    3 -> 10;
    2 -> 8;
    8 -> 2;
    2 -> 9;
    9 -> 2;
    3 -> 8;
    8 -> 3;
    3 -> 9;
    9 -> 3;
    4 -> 8;
    8 -> 4;
    4 -> 9;
    9 -> 4;
    6 -> 8;
    8 -> 6;
    6 -> 9;
    9 -> 6;
 }

 

Author:

Wil Selwood

Constructor Summary

Constructors

Constructor and Description
DOTImporter(VertexProvider<V> vertexProvider, EdgeProvider<V,E> edgeProvider) Constructs a new DOTImporter with the given providers
DOTImporter(VertexProvider<V> vertexProvider, EdgeProvider<V,E> edgeProvider, VertexUpdater<V> updater) Constructs a new DOTImporter with the given providers

Method Summary

Methods

Modifier and Type	Method and Description
void	read(String input, AbstractBaseGraph<V,E> graph) Read a dot formatted string and populate the provided graph.

Methods inherited from class java.lang.Object

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

Constructor Detail

DOTImporter

public DOTImporter(VertexProvider<V> vertexProvider,
           EdgeProvider<V,E> edgeProvider)

Constructs a new DOTImporter with the given providers

Parameters:

vertexProvider - Provider to create a vertex

edgeProvider - Provider to create an edge

DOTImporter

public DOTImporter(VertexProvider<V> vertexProvider,
           EdgeProvider<V,E> edgeProvider,
           VertexUpdater<V> updater)

Constructs a new DOTImporter with the given providers

Parameters:

vertexProvider - Provider to create a vertex

edgeProvider - Provider to create an edge

updater - Method used to update an existing Vertex

Method Detail

read

public void read(String input,
        AbstractBaseGraph<V,E> graph)
          throws ImportException

Read a dot formatted string and populate the provided graph.

Parameters:

input - the content of a dot file.

graph - the graph to update.

Throws:

ImportException - if there is a problem parsing the file.