[Red5] Returning multiple values to Flash from Red5 app

[Bill Goulding]

Should this solution work for client code written in AS2 as well as AS3?
I am able to get this working in an AS3 client, but my project is coded in
AS2...

My AS2 client code is as follows:

var nc:NetConnection = new NetConnection();

nc.client = this;

// connect to the local Red5 server
nc.connect("rtmp://localhost:1935/myTest");

nc.onStatus = function(info){
trace(info.code);
if(info.code == "NetConnection.Connect.Success"){
nc.call("upload", new scriptMessage());
}
}

function scriptTrace(obj) {
trace("ping");
trace(obj.toString());
}

function scriptMessage() {
this.onResult = function(result) {
       trace(result)
   }
}



And my Java server code is as follows:


package org.red5.server.webapp.mytest;


import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import org.red5.server.api.Red5;

import org.red5.server.api.service.IServiceCapableConnection;


import org.red5.server.adapter.ApplicationAdapter;



public class Application extends ApplicationAdapter

{

 public String upload() throws IOException

{

// A Runtime object has methods for dealing with the OS

Runtime r = Runtime.getRuntime( );

Process p;             // Process tracks one external native process

BufferedReader is;    // reader for output of process

Object line;

 IServiceCapableConnection sc = (IServiceCapableConnection)
Red5.getConnectionLocal();

 p = r.exec("/Users/Bill/Desktop/upload.command");

 System.out.println("In Main after exec");


 // getInputStream gives an Input stream connected to

// the process p's standard output. Just use it to make

// a BufferedReader to readLine( ) what the program writes out.

is = new BufferedReader(new InputStreamReader(p.getInputStream( )));


 while ((line = is.readLine()) != null)

    {

System.out.println(line);

sc.invoke("scriptTrace", new Object[]{line});

    }

 System.out.println("In Main after EOF");

try {

    p.waitFor( );    // wait for process to complete

} catch (InterruptedException e) {

    return "error";

}

System.err.println("Process done, exit status was " + p.exitValue( ));

return ("Process done, exit status was " + p.exitValue( ));

}

}


AS3 client code that works is:


flash.events.NetStatusEvent;

// create our responder to pass to Red5 so it knows where

// to return the data

var responder:Responder = new Responder(scriptTrace, null);

// create basic netConnection object

var nc:NetConnection = new NetConnection();


// point the NetConnection's scope to this object

nc.client = this;

function onBWDone(...rest):void

{

// has to be present

}

// connect to the local Red5 server

nc.connect("rtmp://localhost:1935/myTest");

// add status event listener. When it's a success, you make the call

nc.addEventListener(NetStatusEvent.NET_STATUS, handleNetStatus);

function handleNetStatus(e:NetStatusEvent):void

{

trace(e.info.code);

switch(e.info.code)

{

case "NetConnection.Connect.Success":

//nc.call("addSomething", responder, 2, 3);

nc.call("upload", responder);

break;

}

}

function scriptTrace(obj:Object):void

{

if (obj != "script_completed"){

trace(obj.toString());

}

}

Thanks,

Bill



On Thu, Aug 21, 2008 at 5:09 PM, Bill Goulding <billgoulding at gmail.com>wrote:

> Thank-you so much for the example code Prabhu,
> I think that you just saved me a ton of time...
>
>
> On Thu, Aug 21, 2008 at 4:43 PM, Prabhu Tamilarasan (omNovia) <
> ptamilarasan at omnovia.com> wrote:
>
>>  If you want periodic updates as your shell script runs, instead of
>> returning a value, call a function on the client passing one line of output
>> at a time.
>>
>>
>>
>> IServiceCapableConnection sc = (IServiceCapableConnection)
>> Red5.getConnectionLocal();
>>
>>
>>
>> while ((line = is.readLine( )) != null)
>>
>> {
>>
>> System.out.println(line);
>>
>> sc.invoke("shellOutput", new Object[]{line});
>>
>> }
>>
>>
>>  ------------------------------
>>
>>
>>
>> [image: http://www.omnovia.com/images/mailicon.gif]
>> next generation web conferencing
>>
>> Prabhu Tamilarasan
>> Senior Software Engineer
>>
>> 675 Bering Drive, Suite 290
>> Houston, TX 77057 USA
>> www.omnovia.com
>>
>> ptamilarasan at omnovia.com
>>
>> T +1.281.500.4065 x 731
>>    ------------------------------
>>
>>
>>
>> *From:* red5-bounces at osflash.org [mailto:red5-bounces at osflash.org] *On
>> Behalf Of *Bill Goulding
>> *Sent:* Thursday, August 21, 2008 2:50 PM
>> *To:* red5 at osflash.org
>> *Subject:* Re: [Red5] Returning multiple values to Flash from Red5 app
>>
>>
>>
>> Thanks,
>>
>>
>>
>> I might end up doing this - I was hoping that I could trigger a bash
>> script once, and then provide responses back to flash as they occured...
>>
>> On Thu, Aug 21, 2008 at 3:31 PM, Andy Shaules <bowljoman at hotmail.com>
>> wrote:
>>
>> Hello,
>>
>>
>>
>> Try using an array, and push, or ArrayCollection and return it loaded with
>> the values.
>>
>>   ----- Original Message -----
>>
>> *From:* Bill Goulding <billgoulding at gmail.com>
>>
>> *To:* red5 at osflash.org
>>
>> *Sent:* Thursday, August 21, 2008 12:27 PM
>>
>> *Subject:* [Red5] Returning multiple values to Flash from Red5 app
>>
>>
>>
>> Hi All,
>>
>>
>>
>> I am a Java novice that is trying to connect a Flash SWF with the Bash
>> Shell via a local Red5 server on a Linux system (though OSX is my
>> development platform)
>>
>>
>>
>> Thus far, have successfully been able to get Flash to trigger shell
>> scripts on my local system (using a Red5 app given below)
>>
>>
>>
>> I also have been able to capture the output of these shell scripts via
>> Java's Process -> getInputStream in my Red5 app and pass them back to Flash
>> - sort of...
>>
>>
>>
>> I would like for my Red5 app to return multiple values to Flash as they
>> are processed, and presently I am am only able to return the first value
>> that my script produces.
>>
>>
>>
>> I know that this is because I am using a 'Return' statement in the Red5
>> app to send the values back to Flash - 'Return' is terminating the Red5 app
>> after the first value sent.
>>
>>
>>
>> I have been going through the Red5 API trying to suss out the method for
>> sending multiple messages from a Red5 app to a client, and haven't been
>> having any luck.
>>
>>
>>
>> My Java code is as follows:
>>
>>
>>
>> package org.red5.server.webapp.mytest;
>>
>>
>>
>> import java.io.BufferedReader;
>>
>> import java.io.IOException;
>>
>> import java.io.InputStreamReader;
>>
>>
>>
>> import org.red5.server.adapter.ApplicationAdapter;
>>
>>
>>
>>
>>
>> public class Application extends ApplicationAdapter
>>
>> {
>>
>> public String launchSomething() throws IOException
>>
>> {
>>
>> // A Runtime object has methods for dealing with the OS
>>
>> Runtime r = Runtime.getRuntime( );
>>
>> Process p;             // Process tracks one external native process
>>
>> BufferedReader is;    // reader for output of process
>>
>> String line;
>>
>>
>>
>> p = r.exec("/Users/Bill/Desktop/timezone.command");
>>
>>
>>
>> System.out.println("In Main after exec");
>>
>>
>>
>> // getInputStream gives an Input stream connected to
>>
>> // the process p's standard output. Just use it to make
>>
>> // a BufferedReader to readLine( ) what the program writes out.
>>
>> is = new BufferedReader(new InputStreamReader(p.getInputStream( )));
>>
>>
>>
>> while ((line = is.readLine( )) != null)
>>
>>     {
>>
>> System.out.println(line);
>>
>> return line;//How else do I return these values to Flash?
>>
>>     }
>>
>>
>>
>> System.out.println("In Main after EOF");
>>
>> try {
>>
>>     p.waitFor( );    // wait for process to complete
>>
>> } catch (InterruptedException e) {
>>
>>     return null;
>>
>> }
>>
>> System.err.println("Process done, exit status was " + p.exitValue( ));
>>
>> return null;
>>
>> }
>>
>> }
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Bill
>>
>>
>>    ------------------------------
>>
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>>
>>
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>>
>>
>>
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>>
>>
>
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