source: trunk/source/visualization/VRML/g4vrmlview/g4vrmlview.java@ 1160

Last change on this file since 1160 was 834, checked in by garnier, 17 years ago

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File size: 6.5 KB
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[834]1//
2// ********************************************************************
3// * License and Disclaimer *
4// * *
5// * The Geant4 software is copyright of the Copyright Holders of *
6// * the Geant4 Collaboration. It is provided under the terms and *
7// * conditions of the Geant4 Software License, included in the file *
8// * LICENSE and available at http://cern.ch/geant4/license . These *
9// * include a list of copyright holders. *
10// * *
11// * Neither the authors of this software system, nor their employing *
12// * institutes,nor the agencies providing financial support for this *
13// * work make any representation or warranty, express or implied, *
14// * regarding this software system or assume any liability for its *
15// * use. Please see the license in the file LICENSE and URL above *
16// * for the full disclaimer and the limitation of liability. *
17// * *
18// * This code implementation is the result of the scientific and *
19// * technical work of the GEANT4 collaboration. *
20// * By using, copying, modifying or distributing the software (or *
21// * any work based on the software) you agree to acknowledge its *
22// * use in resulting scientific publications, and indicate your *
23// * acceptance of all terms of the Geant4 Software license. *
24// ********************************************************************
25//
26//
27// $Id: g4vrmlview.java,v 1.4 2006/06/29 21:25:17 gunter Exp $
28// GEANT4 tag $Name: $
29//
30import java.io.*;
31import java.net.*;
32
33//------------------//
34// class g4vrmlview //
35// ( main() ) //
36//------------------//
37public class g4vrmlview
38{
39 public static void main( String[] args )
40 {
41 try{
42 // CONST
43 final String VERSION = "1.00" ;
44 final String DATE = "August 19, 1997";
45
46 final int PORT_NO = 40801 ;
47 final String OUTPUT_FILE_HEAD = "g4" ;
48 final String OUTPUT_FILE_EXT = "wrl" ;
49 final int MAX_TRIAL = 10 ;
50
51 // local
52 int portNo = PORT_NO ;
53
54 // argument checking
55 if( args.length != 1 && args.length != 2 )
56 {
57 System.out.println( "-------------------------------");
58 System.out.println( " G4VRMLView version " + VERSION );
59 System.out.println( " " + DATE );
60 System.out.println( "-------------------------------");
61 System.out.println( "Usage: java g4vrmlview browser_name [port_number]");
62 System.out.println( " Browser_name: netscape, vrweb, etc, or NONE");
63 return ;
64 }
65
66 // VRML browser
67 String browser = new String ( args[0] ) ;
68
69 // port number
70 if( args.length == 2 )
71 {
72 portNo = Integer.parseInt( args[1] );
73 }
74
75 // make a server socket
76 ServerSocket ss = null ;
77 for ( int i = 0 ; i < MAX_TRIAL ; i++ )
78 {
79 try
80 {
81 ss = new ServerSocket( portNo );
82 System.out.println( "Waiting for requests at port " +portNo + " ...");
83 break ;
84 }
85 catch ( Exception e )
86 {
87 portNo++ ;
88 if( i >= MAX_TRIAL )
89 {
90 System.out.println( "Sockets are not available.");
91 return ;
92 }
93 }
94 } // for
95
96
97 // open connection and invoke thread
98 int nSpawn = 0 ;
99 while( true )
100 {
101 Socket socket = ss.accept(); nSpawn++ ;
102
103 System.out.println( "Connection accepted by thread " + nSpawn );
104
105 ( new g4vrmlviewThread( socket, OUTPUT_FILE_HEAD, OUTPUT_FILE_EXT , browser )).start() ;
106
107 } // while
108
109 }
110 catch ( Exception e )
111 {
112 System.out.println( e.toString() );
113 }
114 } // main()
115
116} // g4vrmlview
117
118
119//------------------------//
120// class g4vrmlviewThread //
121//------------------------//
122class g4vrmlviewThread extends Thread
123{
124 private final String NONE = "NONE" ; // no browser
125 private Socket m_socket ;
126 private String m_outputFile ;
127 private String m_browser ;
128
129 // constuctor
130 public g4vrmlviewThread( Socket socket ,
131 String outputFileHead ,
132 String outputFileExt ,
133 String browser )
134 {
135 m_socket = socket ;
136 SetOutputFileName ( outputFileHead , outputFileExt );
137 m_browser = new String ( browser );
138 }
139
140 private void SetOutputFileName( String outputFileHead,
141 String outputFileExt )
142 {
143 // temporary file name
144 String outputFile_tmp
145 = new String ( outputFileHead +
146 "." +
147 outputFileExt ) ;
148
149 // for modification of temporary filename
150 int n = 1 ;
151
152 // make a non-existing filename
153 while ( true )
154 {
155 File file = new File ( outputFile_tmp );
156
157 if ( !file.exists() )
158 {
159 break ;
160 } else {
161
162 outputFile_tmp
163 = new String ( outputFileHead +
164 "_" +
165 (n++) +
166 "." +
167 outputFileExt );
168 }
169
170 } // while
171
172 // set decided filename to data field
173 m_outputFile = new String ( outputFile_tmp );
174
175 } // g4vrmlviewThread::setOutputFileName()
176
177
178 // run ()
179 public void run ()
180 {
181 try{
182 // get input stream from socket
183 BufferedReader br
184 = new BufferedReader ( new InputStreamReader ( m_socket.getInputStream() ) ) ;
185
186 // get output stream to file
187 BufferedWriter bw
188 = new BufferedWriter ( new FileWriter ( m_outputFile ) ) ;
189
190 // socket ==> file
191 String line ;
192 while ( (line = br.readLine()) != null )
193 {
194 bw.write( line );
195 bw.newLine() ;
196 bw.flush () ;
197 }
198 System.out.println( "VRML data is saved to file " +m_outputFile );
199
200 // close streams and socket
201 br.close();
202 bw.close();
203 m_socket.close() ;
204
205 // invoke browser
206 if( !m_browser.equals(NONE) )
207 {
208 try
209 {
210
211 File file = new File ( m_outputFile );
212
213 // visualize created VRML file with browser
214 if ( file.exists() )
215 {
216 String outputFileAbs = new String ( file.getAbsolutePath() ) ;
217 String[] command = { m_browser, outputFileAbs };
218 System.out.println( "Command: " + command[0] + " " + command[1] );
219
220 Process exec_process = null ;
221
222 Runtime runtime = Runtime.getRuntime();
223 exec_process = runtime.exec( command );
224 exec_process.waitFor() ;
225 } else {
226 System.out.println( "Error: Failed to open file" + m_outputFile );
227 }
228 }
229 catch ( Exception e )
230 {
231 System.out.println( e.toString() );
232 }
233
234 }
235 else
236 {
237 System.out.println( "No browser was invoked" );
238 }
239
240 }
241 catch( Exception e )
242 {
243 System.out.println( e.toString() );
244 }
245 } // run()
246
247} // g4vrmlviewThread
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