/*
* Copyright 2006 - 2013
* Stefan Balev <stefan.balev@graphstream-project.org>
* Julien Baudry <julien.baudry@graphstream-project.org>
* Antoine Dutot <antoine.dutot@graphstream-project.org>
* Yoann Pigné <yoann.pigne@graphstream-project.org>
* Guilhelm Savin <guilhelm.savin@graphstream-project.org>
*
* This file is part of GraphStream <http://graphstream-project.org>.
*
* GraphStream is a library whose purpose is to handle static or dynamic
* graph, create them from scratch, file or any source and display them.
*
* This program is free software distributed under the terms of two licenses, the
* CeCILL-C license that fits European law, and the GNU Lesser General Public
* License. You can use, modify and/ or redistribute the software under the terms
* of the CeCILL-C license as circulated by CEA, CNRS and INRIA at the following
* URL <http://www.cecill.info> or under the terms of the GNU LGPL as published by
* the Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL-C and LGPL licenses and that you accept their terms.
*/
package org.graphstream.stream.netstream;
import java.io.IOException;
import java.net.UnknownHostException;
import org.graphstream.graph.Graph;
import org.graphstream.graph.implementations.MultiGraph;
import org.graphstream.stream.netstream.NetStreamReceiver;
import org.graphstream.stream.netstream.NetStreamSender;
import org.graphstream.stream.netstream.packing.Base64Packer;
import org.graphstream.stream.netstream.packing.Base64Unpacker;
import org.graphstream.stream.thread.ThreadProxyPipe;
/**
* A simple example of use of the NetStream sender and receiver.
* <p>
* This is a dummy example where the Java Sender and Receiver are used together.
* This is not the normal use of the NetStream, normally the receiver should be
* connected to a sender from another language or the opposite. For a
* java-to-java network communication other tools based on RMI are probably more
* suitable.
* </p>
* <p>
* In this class a basic receiver plugged to a displayed multigraph is created
* and waits for events on the "default" stream, on port 2001 at "localhost". In
* another thread, a Sender is created with a graph connected to its sink, so
* that any event from the graph will end-up to the sender. The sender connects
* to "localhost" on port 2001 and sends, on the default stream, any received
* event to the receiver, through the network, using the NetStream protocol.
* </p>
*
*
* ExampleWithViewer.java
* @since Aug 17, 2011
*
* @author Yoann Pigné
*/
public class ExampleWithViewer {
public static void main(String[] args) throws UnknownHostException,
IOException, InterruptedException {
// ----- On the receiver side -----
//
// - a graph that will display the received events
Graph g = new MultiGraph("G");
g.display();
// - the receiver that waits for events
NetStreamReceiver net = new NetStreamReceiver(2001);
net.setUnpacker(new Base64Unpacker());
net.setDebugOn(false);
// - received events end up in the "default" pipe
ThreadProxyPipe pipe = net.getDefaultStream();
// - plug the pipe to the sink of the graph
pipe.addSink(g);
// ----- The sender side (in another thread) ------
//
new Thread() {
public void run() {
// - the original graph from which events are generated
Graph g = new MultiGraph("G");
// - the sender
NetStreamSender nsc = null;
try {
nsc = new NetStreamSender(2001);
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
nsc.setPacker(new Base64Packer());
// - plug the graph to the sender so that graph events can be
// sent automatically
g.addSink(nsc);
// - generate some events on the client side
String style = "node{fill-mode:plain;fill-color:#567;size:6px;}";
g.addAttribute("stylesheet", style);
g.addAttribute("ui.antialias", true);
g.addAttribute("layout.stabilization-limit", 0);
for (int i = 0; i < 5000; i++) {
g.addNode(i + "");
if (i > 0) {
g.addEdge(i + "-" + (i - 1), i + "", (i - 1) + "");
g.addEdge(i + "--" + (i / 2), i + "", (i / 2) + "");
}
}
}
}.start();
// ----- Back to the receiver side -----
//
// -The receiver pro-actively checks for events on the ThreadProxyPipe
while (true) {
pipe.pump();
Thread.sleep(100);
}
}
}