ServerRecieve.java

import java.net.*;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.io.*;
public class ServerRecieve extends Thread
{
    Server server1;
    String[] args;
    public int newSize = 0;
    public long fileSize = 0;
    int fileSize2 = 0;
    int filePortNumber = 0;
    Socket servSocket;
    Socket fileSocket = new Socket();
    boolean m_bRunThread = true;
    boolean ServerOn = true;
    int gotPortNumber = 0;
    int once = 0;
    String fileNameGlobal = "";
    int fileSizeGlobal = 0;
    boolean startThreadOnce = false;
    public ServerRecieve(Socket s) throws FileNotFoundException
    {
        super();
        this.servSocket = s;
    }
    public void run()
    {
      try
      {
          //ServerConnect is supposed to be started somewhere in this file
          DataInputStream messagesFromServer = new DataInputStream(servSocket.getInputStream());
          DataOutputStream output = new DataOutputStream(servSocket.getOutputStream());

          boolean stop = false;
          while (!stop)
          {
             String response = messagesFromServer.readUTF();
             if(response!=null && !response.isEmpty())
             {
                 if(response.matches(".*\\d+.*"))
                 {
                     System.out.println("got a number, it is: " + response);
                 }
                else if(response.contains("`"))
                 {
                    String[] parts = response.split("`");
                    String part1 = parts[0];
                    //part1 contains file name....now send the file or file size

                    File file= new File(part1);
                    System.out.println("File exists: " +  file.exists());
                    System.out.println("File can be read: " +  file.canRead());
                    System.out.println("File file.canWrite(): " +  file.canWrite());
                    if ( file.exists() && file.canRead() )
                    {
                        // return the number of bytes in the file as a long int
                        long file_size= file.length();
                        System.out.println("File size is: " + file_size);
                        if ( file_size > 0 )
                        {
                            System.out.println("432211");
                            output.writeLong( file_size );
                            System.out.println("File size sent.");
                        }

                        else
                        {
                            output.writeLong( 0L );

                        }
                    }
                    else
                    {
                        output.writeLong( 0L );

                    }
                    FileInputStream file_input= new FileInputStream(file);
                    System.out.println( "Transmitting file: " + part1);
                    byte[] file_buffer= new byte[1500];
                    int number_read;
                    while( (number_read= file_input.read( file_buffer )) != -1 )
                        output.write( file_buffer, 0, number_read );
                    System.out.println("File " + part1 + " sent with " + number_read + " bytes read.");

                 }
                 else if(response.equals("x") || response.equals("X"))
                 {
                         stop = true;
                         System.exit(0);
                         break;
                 }
                 else if(!response.contains("`") && !response.equals("x") && !response.equals("X"))
                 {
                     System.out.println(response);
                 }
             }
             else if(response == null)
             {
                 stop = true;
                 System.exit(0);
                 break;
             }
          }
       }
       catch (IOException e)
       {
           e.printStackTrace();
       }
      finally
      {
      }
    }
    void OutputOptions()
    {
        System.out.println("Enter an option ('m', 'f', 'x'): ");
        System.out.println("(M)essage (send)");
        System.out.println("(F)ile (request) ");
        System.out.println("e(X)it ");
    }
    public void sendFileSize(Socket socket4, int fileSize)
    {
        try
        {
            OutputStream os = socket4.getOutputStream();
            OutputStreamWriter osw = new OutputStreamWriter(os);
            BufferedWriter bw = new BufferedWriter(osw);
            bw.write("File size is:" + fileSize);
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
        finally
        {

        }

    }
    public void findFile(String name,File file)
    {
        File[] list = file.listFiles();
        if(list!=null)
        for (File fil : list)
        {
            if (fil.isDirectory())
            {
                findFile(name,fil);
            }
            else if (name.equalsIgnoreCase(fil.getName()))
            {
                System.out.println(fil.getParentFile());
            }
        }
    }
     public int strToInt( String str )
     {
        int i = 0;
        int num = 0;
        boolean isNeg = false;
        if (str.charAt(0) == '-')
        {
            isNeg = true;
            i = 1;
        }
        while( i < str.length())
        {
            num *= 10;
            num += str.charAt(i++) - '0';
        }
        if (isNeg)
        {
            num = -num;
        }
        return num;
    }
}