2 * Copyright (c) 2003-2005 The BISON Project
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License version 2 as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU Lesser General Public License for more details.
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 package peersim.dynamics;
21 import peersim.graph.*;
22 import peersim.core.*;
23 import peersim.config.*;
26 * Takes a {@link Linkable} protocol and adds random connections. Note that no
27 * connections are removed, they are only added. So it can be used in
28 * combination with other initializers.
29 * @see GraphFactory#wireKOut
31 public class WireKOut extends WireGraph {
33 //--------------------------------------------------------------------------
35 //--------------------------------------------------------------------------
38 * The number of outgoing edges to generate from each node.
39 * Passed to {@link GraphFactory#wireKOut}.
40 * No loop edges are generated.
41 * In the undirected case, the degree
42 * of nodes will be on average almost twice as much because the incoming links
43 * also become links out of each node.
46 private static final String PAR_DEGREE = "k";
48 //--------------------------------------------------------------------------
50 //--------------------------------------------------------------------------
53 * The number of outgoing edges to generate from each node.
57 //--------------------------------------------------------------------------
59 //--------------------------------------------------------------------------
62 * Standard constructor that reads the configuration parameters.
63 * Invoked by the simulation engine.
64 * @param prefix the configuration prefix for this class
66 public WireKOut(String prefix)
69 k = Configuration.getInt(prefix + "." + PAR_DEGREE);
72 //--------------------------------------------------------------------------
74 //--------------------------------------------------------------------------
76 /** Calls {@link GraphFactory#wireKOut}. */
77 public void wire(Graph g) {
79 GraphFactory.wireKOut(g,k,CommonState.r);