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  /*
  * JBoss, Home of Professional Open Source
  * Copyright 2005, JBoss Inc., and individual contributors as indicated
  * by the @authors tag. See the copyright.txt in the distribution for a
  * full listing of individual contributors.
  *
  * This is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as
  * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
 
 package org.jboss.remoting.samples.stream;
 
 import java.io.File;

Author(s):
Tom Elrod
 
 public class StreamingServer
 {
    // Default locator values
    private static String transport = "socket";
    private static String host = "localhost";
    private static int port = 5400;
 
    private String locatorURI =  + "://" +  + ":" + ;
    private Connector connector = null;
 
    public void setupServer() throws Exception
    {
       InvokerLocator locator = new InvokerLocator();
       ..println("Starting remoting server with locator uri of: " + );
        = new Connector();
       .setInvokerLocator(locator.getLocatorURI());
       .create();
 
       TestStreamInvocationHandler invocationHandler = new TestStreamInvocationHandler();
       // first parameter is sub-system name.  can be any String value.
       .addInvocationHandler("test_stream"invocationHandler);
 
       .start(true);
    }


   
Can pass transport and port to be used as parameters. Valid transports are 'rmi' and 'socket'.

Parameters:
args
 
    public static void main(String[] args)
    {
       if(args != null && args.length == 3)
       {
           = args[0];
           = args[1];
           = Integer.parseInt(args[2]);
       }
 
       StreamingServer server = new StreamingServer();
       try
       {
          server.setupServer();
 
          // wait forever, let the user kill us at any point (at which point, the client will detect we went down)
          while(true)
          {
             Thread.sleep(1000);
          }
 
       }
       catch(Exception e)
       {
          e.printStackTrace();
       }
    }

   
Simple invocation handler implementation.
   public static class TestStreamInvocationHandler implements StreamInvocationHandler
   {
      private long streamSize = 0;

      
takes the incoming stream and writes out to a file specified by the other param specified. will return the size of the file.

Parameters:
stream
param
Returns:
      public Object handleStream(InputStream streamInvocationRequest param)
      {
         try
         {
            String fileName = (String)param.getParameter();
            ..println("Received input stream from client to write out to file " + fileName);
            File newFile = new File(fileName);
            if(!newFile.exists())
            {
               newFile.createNewFile();
            }
            FileOutputStream out = new FileOutputStream(newFilefalse);
            byte buf[] = new byte[4096];
            while(true)
            {
               int c = stream.read(buf);
               if(c < 0)
               {
                  break;
               }
               out.write(buf, 0, c);
            }
            out.flush();
            out.close();
             = newFile.length();
            ..println("New file " + fileName + " has been written out to " + newFile.getAbsolutePath());
            ..println("Size of " + newFile.getAbsolutePath() + " is " + );
         }
         catch(Throwable e)
         {
            e.printStackTrace();
         }
         finally
         {
            try
            {
               stream.close();
            }
            catch(IOException e)
            {
               e.printStackTrace();
            }
         }
         return new Long();
      }

      
called to handle a specific invocation

Parameters:
invocation
Returns:
Throws:
java.lang.Throwable
      public Object invoke(InvocationRequest invocationthrows Throwable
      {
         // Print out the invocation request
         ..println("Invocation request is: " + invocation.getParameter());
         // Return the size of the file already streamed to the server (and written to disk).
         return new Long();
      }

      
Adds a callback handler that will listen for callbacks from the server invoker handler.

Parameters:
callbackHandler
      public void addListener(InvokerCallbackHandler callbackHandler)
      {
         // NO OP as do not handling callback listeners in this example
      }

      
Removes the callback handler that was listening for callbacks from the server invoker handler.

Parameters:
callbackHandler
      public void removeListener(InvokerCallbackHandler callbackHandler)
      {
         // NO OP as do not handling callback listeners in this example
      }

      
set the mbean server that the handler can reference

Parameters:
server
      public void setMBeanServer(MBeanServer server)
      {
         // NO OP as do not need reference to MBeanServer for this handler
      }

      
set the invoker that owns this handler

Parameters:
invoker
      public void setInvoker(ServerInvoker invoker)
      {
         // NO OP as do not need reference back to the server invoker
      }
   }
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