Import Geant4 0.0.0 source tree

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+// This code implementation is the intellectual property of
+// the RD44 GEANT4 collaboration.
+//
+// By copying, distributing or modifying the Program (or any work
+// based on the Program) you indicate your acceptance of this statement,
+// and all its terms.
+//
+// $Id: g4vrmlview.java,v 2.1 1998/11/29 22:00:10 stanaka Exp $
+// GEANT4 tag $Name: geant4-00 $
+//
+import java.io.*;
+import java.net.*;
+
+//------------------//
+// class g4vrmlview //
+// ( main() )       // 
+//------------------//
+public class g4vrmlview
+{
+	public static void main( String[] args )
+	{
+	try{
+		// CONST 
+		final String VERSION             = "1.00"   ;
+		final String DATE                = "August 19, 1997";
+
+		final int    PORT_NO             = 40801    ;
+		final String OUTPUT_FILE_HEAD    = "g4"     ;
+		final String OUTPUT_FILE_EXT     = "wrl"    ;
+		final int    MAX_TRIAL           = 10       ;
+
+		// local
+		int          portNo              = PORT_NO  ; 
+
+		// argument checking
+		if(  args.length != 1 && args.length != 2 )
+		{
+			System.out.println( "-------------------------------");
+			System.out.println( " G4VRMLView version  " + VERSION );
+			System.out.println( "     " + DATE                   );
+			System.out.println( "-------------------------------");
+			System.out.println( "Usage: java g4vrmlview browser_name [port_number]");
+			System.out.println( "  Browser_name: netscape, vrweb, etc, or NONE");
+			return ;
+		}
+		
+		// VRML browser
+		String       browser = new String ( args[0] ) ;
+
+		// port number
+		if( args.length == 2 ) 
+		{
+			portNo = Integer.parseInt( args[1] );
+		}
+
+		// make a server socket
+		ServerSocket  ss = null ;
+		for ( int i = 0 ; i < MAX_TRIAL ; i++ )
+		{
+			try 
+			{
+				ss = new ServerSocket( portNo );
+				System.out.println( "Waiting for requests at port  " +portNo + " ...");
+				break ;
+			}
+			catch ( Exception e ) 
+			{
+				portNo++ ; 
+				if( i >= MAX_TRIAL ) 
+				{ 
+					System.out.println( "Sockets are not available.");
+					return ;
+				}
+			}
+		} // for 
+
+
+		// open connection and invoke thread
+		int nSpawn = 0 ;
+		while( true )
+		{
+			Socket socket = ss.accept();	nSpawn++ ;
+
+			System.out.println( "Connection accepted by thread " + nSpawn ); 
+
+			( new g4vrmlviewThread( socket, OUTPUT_FILE_HEAD, OUTPUT_FILE_EXT , browser )).start() ;
+
+		} // while
+
+	}
+	catch ( Exception e ) 
+	{
+		System.out.println( e.toString() );
+	}	
+	} // main()
+
+} // g4vrmlview
+
+
+//------------------------//
+// class g4vrmlviewThread //
+//------------------------//
+class g4vrmlviewThread extends Thread
+{
+	private final String NONE = "NONE" ; // no browser
+	private  Socket     m_socket     ;
+	private  String     m_outputFile     ;		
+	private  String     m_browser    ;
+
+	// constuctor
+	public g4vrmlviewThread(	Socket socket          , 
+					String outputFileHead  , 
+					String outputFileExt   , 
+					String browser     ) 
+	{
+		m_socket     = socket ;
+		SetOutputFileName ( outputFileHead  , outputFileExt );
+		m_browser    = new String ( browser    );
+	}
+
+	private void SetOutputFileName(	String outputFileHead,
+					String outputFileExt  )
+	{
+		// temporary file name
+		String  outputFile_tmp 
+		= new String (	outputFileHead + 
+				"."            +
+				outputFileExt   ) ; 
+
+		// for modification of temporary filename
+		int n = 1 ; 
+
+		// make a non-existing filename
+		while ( true )
+		{
+			File file = new File ( outputFile_tmp );
+
+			if ( !file.exists() ) 
+			{ 
+				break ; 
+			} else {
+
+				outputFile_tmp 
+				= new String (	outputFileHead + 
+						"_"            +
+						(n++)          +
+						"."            +
+						outputFileExt   ); 
+			}
+
+		} // while
+
+		// set decided filename to data field
+		m_outputFile = new String ( outputFile_tmp ); 
+
+	} // g4vrmlviewThread::setOutputFileName()
+
+
+	// run ()
+	public void run ()
+	{
+	try{
+		// get input stream from socket
+		BufferedReader br 
+		= new BufferedReader ( new InputStreamReader ( m_socket.getInputStream() ) ) ;
+
+		// get output stream to file
+		BufferedWriter bw 
+		= new BufferedWriter ( new FileWriter ( m_outputFile ) ) ;
+
+		// socket ==> file
+		String line ;
+		while ( (line = br.readLine()) != null )
+		{
+			bw.write( line );   
+			bw.newLine()    ;
+			bw.flush  ()    ;
+		}
+		System.out.println( "VRML data is saved to file " +m_outputFile );
+
+		// close streams and socket
+		br.close();
+		bw.close();
+		m_socket.close() ; 
+
+		// invoke browser
+		if( !m_browser.equals(NONE) )
+		{
+			try 
+			{
+
+				File file = new File ( m_outputFile );
+
+				// visualize created VRML file with browser	
+				if ( file.exists() ) 
+				{
+					String  outputFileAbs  = new String ( file.getAbsolutePath() ) ;
+					String[] command = { m_browser, outputFileAbs };
+					System.out.println( "Command: " + command[0] + " " + command[1] );
+
+					Process  exec_process    = null ;
+	
+					Runtime runtime = Runtime.getRuntime();
+					exec_process 	= runtime.exec( command );
+					exec_process.waitFor() ;
+				} else {
+						System.out.println( "Error: Failed to open file" + m_outputFile );
+				}
+			} 
+			catch ( Exception e ) 
+			{  
+				System.out.println( e.toString() );
+			}
+
+		} 
+		else 
+		{
+			System.out.println( "No browser was invoked" );
+		}
+
+	}
+	catch( Exception e ) 
+	{
+		System.out.println( e.toString() );
+	}	
+	} // run()
+
+} // g4vrmlviewThread