+++ /dev/null
-/*
- * Copyright (c) 2003-2005 The BISON Project
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-package peersim.dynamics;
-
-
-import java.io.IOException;
-import java.io.FileReader;
-import java.io.LineNumberReader;
-import java.util.StringTokenizer;
-import peersim.graph.Graph;
-import peersim.core.*;
-import peersim.config.Configuration;
-
-/**
-* Takes a {@link Linkable} protocol and adds connections that are stored in a
-* file. Note that no
-* connections are removed, they are only added. So it can be used in
-* combination with other initializers.
-* The format of the file is as follows. Each line begins with a node ID
-* (IDs start from 0) followed by a list of neighbors, separated by whitespace.
-* All node IDs larger than the actual network size will be discarded, but
-* it does not trigger an error. Lines starting with a "#" character and
-* empty lines are ignored.
-*/
-public class WireFromFile extends WireGraph {
-
-
-// ========================= fields =================================
-// ==================================================================
-
-
-/**
-* The filename to load links from.
-* @config
-*/
-private static final String PAR_FILE = "file";
-
-/**
-* The number of neighbors to be read from the file. If unset, the default
-* behavior is to read all links in the file. If set, then the first k
-* neighbors will be read only.
-* @config
-*/
-private static final String PAR_K = "k";
-
-private final String file;
-
-private final int k;
-
-// ==================== initialization ==============================
-// ==================================================================
-
-
-/**
- * Standard constructor that reads the configuration parameters.
- * Invoked by the simulation engine.
- * @param prefix the configuration prefix for this class
- */
-public WireFromFile(String prefix) {
-
- super(prefix);
- file = Configuration.getString(prefix+"."+PAR_FILE);
- k = Configuration.getInt(prefix + "." + PAR_K, Integer.MAX_VALUE);
-}
-
-
-// ===================== public methods ==============================
-// ===================================================================
-
-
-/**
-* Wires the graph from a file.
-* The format of the file is as follows. Each line begins with a node ID
-* (IDs start from 0) followed by a list of neighbors, separated by whitespace.
-* All node IDs larger than the actual network size will be discarded, but
-* it does not trigger an error. Lines starting with a "#" character and
-* empty lines are ignored.
-*/
-public void wire(Graph g) {
-try
-{
- FileReader fr = new FileReader(file);
- LineNumberReader lnr = new LineNumberReader(fr);
- String line;
- boolean wasOutOfRange=false;
- while((line=lnr.readLine()) != null)
- {
- if( line.startsWith("#") ) continue;
- StringTokenizer st = new StringTokenizer(line);
- if(!st.hasMoreTokens()) continue;
-
- final int from = Integer.parseInt(st.nextToken());
- if( from < 0 || from >= Network.size() )
- {
- wasOutOfRange = true;
- continue;
- }
-
- for(int i=0; i<k && st.hasMoreTokens(); ++i)
- {
- final int to = Integer.parseInt(st.nextToken());
- if( to < 0 || to >= Network.size() )
- wasOutOfRange = true;
- else
- g.setEdge(from,to);
- }
- }
-
- if( wasOutOfRange )
- System.err.println("WireFromFile warning: in "+file+" "+
- "some nodes were out of range and so ignored.");
- lnr.close();
-}
-catch( IOException e )
-{
- throw new RuntimeException(e);
-}
-}
-
-}
