Change your Java code to use socket factories

To use secure sockets layer (SSL) with your existing code, you must first change your code to use socket factories.

1. Add this line to your program to import the SocketFactory class:

   import javax.net.*;

2. Add a line that declares an instance of a SocketFactory object. For example:

   SocketFactory socketFactory

3. Initialize the SocketFactory instance by setting it equal to the method SocketFactory.getDefault(). For example:

   socketFactory = SocketFactory.getDefault();

   The whole declaration of the SocketFactory should look like this:

   SocketFactory socketFactory = SocketFactory.getDefault();

4. Initialize your existing sockets. Call the SocketFactory method createSocket(host,port) on your socket factory for each socket you declare.
   Your socket declarations should now look like this:

   Socket s = socketFactory.createSocket(host,port);

   Where:
   • s is the socket that is being created.
   • socketFactory is the SocketFactory that was created in step 2.
   • host is a string variable that represents the name of a host server.
   • port is an integer variable that represents the port number of the socket connection.

• Examples: Change your Java code to use server socket factories
  These examples show you how to change a simple socket class, named simpleSocketServer, so that it uses socket factories to create all of the sockets. The first example shows you the simpleSocketServer class without socket factories. The second example shows you the simpleSocketServer class with socket factories. In the second example, simpleSocketServer is renamed to factorySocketServer.
• Examples: Change your Java code to use client socket factories
  These examples show you how to change a simple socket class, named simpleSocketClient, so that it uses socket factories to create all of the sockets. The first example shows you the simpleSocketClient class without socket factories. The second example shows you the simpleSocketClient class with socket factories. In the second example, simpleSocketClient is renamed to factorySocketClient.