import java.io.*;

  
class GetEmailAddresses 
{  
   public static void main(String[] args) throws Exception 
   {
      if (args.length < 1)
      {
         System.out.println("Usage: java GetEmailAddresses searchSite");
         System.out.println("Example: java GetEmailAddresses http://community-info.org");
         System.out.println("The searchSite is where the search starts, but can wind up anywhere on the Internet.");
         System.exit(0);
      }
      //define a string for assigning to addresses to.      
      //open up file that stores to addresses      
      FileInputStream fstream = new FileInputStream("people.txt");
      DataInputStream in = new DataInputStream(fstream);
      BufferedReader br = new BufferedReader(new InputStreamReader(in));
      String to_addr = null;
      String CLStr = "Java SearchCrawler";
      String searchSite = args[0];
      File synchronicity = new File("IAmRunning"); 
      
      while ((to_addr = br.readLine()) != null)
      {
             System.out.println("Check to see if SearchCrawler is already running or not\n");
             while (synchronicity.exists())
             {
                 System.out.println("SearchCrawler is already running, wait a minute\n");
                 try
                 {
                    Thread.sleep(60000);  // check once a minute
                 }
                 catch (InterruptedException ie)
                 {
                    System.out.println(ie.getMessage());
                 }
             }        
             if (!(synchronicity.exists()))
             {
                System.out.println("Call SearchCrawler: ");
                String CLArg = CLStr + " " + '\"' + to_addr + '\"' + " " + searchSite;
                System.out.println(CLArg + "\n");
                Process myProcess = Runtime.getRuntime().exec(CLArg);
                System.out.println("Just made call\n");
                 try
                 {
                    Thread.sleep(60000);  // wait a minute
                 }
                 catch (InterruptedException ie)
                 {
                    System.out.println(ie.getMessage());
                 }

             }
      }
   }
}