Chip 1997 October/Chip_1997-10_cd.bin/tema/sybase/powerj/samples.z/IURL_Poller.wxc

Text File | 1997-01-28 | 7KB | 241 lines

Save Format v2.0(1)
@begin ClassFile "IURL_Poller"
 Exported 0;
 Abstract 0;
 Interface 0;
 PackageName "";
 Language "Java";

 @begin UserFunction "IURL_Poller()"
  Compiler 1;
  GencodeSrcLine 13;
  FunctionName "IURL_Poller::IURL_Poller()";
 @end;

 @begin UserFunction "main(String args[])"
  Compiler 1;
  GencodeFunction 1;
  GencodeSrcLine 17;
  FunctionName "IURL_Poller::main(String args[])";
 @end;

 @begin UserFunction "CreateMainForm()"
  Compiler 1;
  GencodeFunction 1;
  GencodeSrcLine 24;
  FunctionName "IURL_Poller::CreateMainForm()";
 @end;

 @begin UserFunction "StartApp(String args[])"
  Compiler 1;
  GencodeSrcLine 27;
  FunctionName "IURL_Poller::StartApp(String args[])";
 @end;

 @begin UserFunction "RunApp(String args[])"
  Compiler 1;
  GencodeSrcLine 35;
  FunctionName "IURL_Poller::RunApp(String args[])";
 @end;

 @begin UserFunction "EndApp(String args[])"
  Compiler 1;
  GencodeSrcLine 141;
  FunctionName "IURL_Poller::EndApp(String args[])";
 @end;

 @begin HPPPrefixBlock
@begin-code HPPPrefix

// add your custom import statements here
import java.io.*;
import java.net.*;
import java.util.*;

@end-code;
  GencodeSrcLine 6;
 @end;

 @begin ClassContentsBlock
@begin-code ClassContents

    // add your data members here
    WebConnection server;

@end-code;
  GencodeSrcLine 144;
 @end;

@begin-code BaseClassList

extends Object

@end-code;

@begin-code GeneratedClassContents


@end-code;

@begin-code Code "IURL_Poller::IURL_Poller()"

    public @CLASSNAME@()
    {
        super();
    }

@end-code;

@begin-code Code "IURL_Poller::main(String args[])"

    public static void main(String args[])
    {
        @@CLASSNAME@ app = new @CLASSNAME@();
        app.StartApp(args);
        app.RunApp(args);
        app.EndApp(args);
    }

@end-code;

@begin-code Code "IURL_Poller::CreateMainForm()"

    public void CreateMainForm()
    {
    }

@end-code;

@begin-code Code "IURL_Poller::StartApp(String args[])"

    public void StartApp(String args[])
    {
        server = new WebConnection(args);
        if (! server.getConnected() ) {
            System.err.println("Connection to Server failed");
            System.exit(2);
        }
    }

@end-code;

@begin-code Code "IURL_Poller::RunApp(String args[])"

    public void RunApp(String args[])
    {
        //CreateMainForm();
        try {
            // Print out the headers and titles
            server.setResponseHeader( "Content-Type", "text/html" );
            server.writeln( "<CENTER><H1>Java ISAPI / NSAPI URL Poller Sample</H1></CENTER>" );
            server.writeln( "<P>\n<BR>\n<HR>\n<BR>" );

            URLList urlList = new URLList();

            // Get the URL to be added, as well as the time interval for polling
            String URLString = null;
            String pollInterval = null;
            if( server.getIsPostMethod() ) {
                URLString = server.getFormVariable( "url" );
                pollInterval = server.getFormVariable( "pollInterval" );
            } else {
                URLString = server.getQueryVariable( "url" );
                pollInterval = server.getQueryVariable( "pollInterval" );
            }

            // Get the polling interval; if none is specified, used the default
            long pollTime = 0;
            if( pollInterval != null ) {
                pollTime = ( new Long( pollInterval ) ).longValue();
                pollTime = pollTime * 60 * 1000;
            } else {
                pollTime = urlList.getPollInterval();
            }
            pollTime = ( pollTime / 1000 ) / 60;

            server.write( "<P>This server will poll the list of URLs every " );
            server.write( Long.toString( pollTime ) );
            server.writeln( " minute(s)." );
            server.write( "<P>Here is a current list of the URLs stored by the server" );
            server.writeln( " and their status since the last poll." );
            server.writeln( "<P>\n<BR>" );

            // If a URL was specified to be added, add it to the list
            if( URLString != null ) {
                urlList.addURL( URLString );
            }
            urlList.startPolling();

            // Print out a list of URLs currently stored by the server, as well
            // as their status since the last poll
            server.writeln( "<CENTER><TABLE BORDER=4 BGCOLOR=WHITE>" );
            server.writeln( "<TR>" );
            server.writeln( "<TH>URL</TH>" );
            server.writeln( "<TH>Status</TH>" );
            server.writeln( "</TR>" );

            for( Enumeration e = urlList.getURLs(); e.hasMoreElements(); ) {
                URLStatus oneItem = ( URLStatus ) e.nextElement();

                URL url = oneItem.getURL();
                int status = oneItem.getStatus();

                server.writeln( "<TR>" );

                // Print out the URL and make a link to it if it's new
                server.write( "<TD>" );
                if( status == URLStatus.NEW ) {
                    server.write( "<A HREF=\"" );
                    server.write( url.toString() );
                    server.write( "\">" );
                    server.write( url.toString() );
                    server.write( "</A>" );
                } else {
                    server.write( url.toString() );
                }
                server.writeln( "</TD>" );

                // Print out the status of this URL
                server.write( "<TD>" );
                switch( status ) {
                    case URLStatus.NEW: {
                        server.write( "<FONT COLOR=\"red\">" );
                        server.write( "NEW" );
                        server.write( "</FONT>" );
                        break;
                    } case URLStatus.UNCHANGED: {
                        server.write( "Unchanged" );
                        break;
                    } case URLStatus.UNKNOWN: {
                        server.write( "Unknown" );
                        break;
                    } default: {
                        server.write( "Error" );
                        break;
                    }
                }
                server.writeln( "</TD>" );
                server.writeln( "</TR>" );
            }
            server.writeln( "</TABLE></CENTER>" );
            server.writeln( "<P>\n<BR>\n<HR>\n<BR>" );

        } catch( WebServiceException e ) {
            server.writeln( "<H2>WebService Exception: " + e.getMessage() );
        } catch( Exception e ) {
            server.writeln( "<H2>Exception: " + e.getMessage() );
        }

    }

@end-code;

@begin-code Code "IURL_Poller::EndApp(String args[])"

    public void EndApp(String args[])
    {
    }

@end-code;
@end;