org.jgrapht.io.GraphImporter Maven / Gradle / Ivy
/*
* (C) Copyright 2016-2017, by Dimitrios Michail and Contributors.
*
* JGraphT : a free Java graph-theory library
*
* This program and the accompanying materials are dual-licensed under
* either
*
* (a) the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation, or (at your option) any
* later version.
*
* or (per the licensee's choosing)
*
* (b) the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation.
*/
package org.jgrapht.io;
import java.io.*;
import java.nio.charset.*;
import org.jgrapht.*;
/**
* Interface for graph importers
*
* @param the graph vertex type
* @param the graph edge type
*/
public interface GraphImporter
{
/**
* Import a graph
*
* @param g the graph
* @param in the input stream
* @throws ImportException in case any error occurs, such as I/O or parse error
*/
default void importGraph(Graph g, InputStream in)
throws ImportException
{
importGraph(g, new InputStreamReader(in, StandardCharsets.UTF_8));
}
/**
* Import a graph
*
* @param g the graph
* @param in the input reader
* @throws ImportException in case any error occurs, such as I/O or parse error
*/
void importGraph(Graph g, Reader in)
throws ImportException;
/**
* Import a graph
*
* @param g the graph
* @param file the file to read from
* @throws ImportException in case any error occurs, such as I/O or parse error
*/
default void importGraph(Graph g, File file)
throws ImportException
{
try {
importGraph(
g, new InputStreamReader(new FileInputStream(file), StandardCharsets.UTF_8));
} catch (IOException e) {
throw new ImportException(e);
}
}
}
// End GraphImporter.java