Take a look at the Adobe documentation on XMLSocket, it may be possible to
just send
null terminated strings instead of well formed XML. I recall something like
that is possible.
On Thu, May 8, 2008 at 10:02 AM, Evaldas Taroza <[EMAIL PROTECTED]> wrote:
> Thanks for the code, it gave me initial idea on where to start. Still, the
> code is showing XMLSocket, so it assumes that I am receiving XML data. But
> As I mentioned previously, the incoming data (at least in the beginning) is
> not well formed XML and should be treated as a simple string...
>
> So I suppose there is some Flash API for that, isn't there?
>
> How does it work technically that OL can communicate to Flash using
> Javascript?
>
> Evaldas
>
> Henry Minsky wrote:
>
>> We do something similar with the remote debug protocol.
>>
>> if you look at the file WEB-INF/lps/lfc/debugger/platform/swf/LzRemote.as
>> you will see the usage
>> of the Flash APIs. They can be accessed as normal Javascript for the most
>> part.
>>
>> For example the code to open and send a message looks like
>>
>> Debug.sockOpen = function (port) {
>> var url = LzBrowser.getLoadURLAsLzURL();
>> // Security requires us to talk back to the server we were loaded from
>> var host = url.host;
>> this.xsock = new XMLSocket();
>> this.xsock.onClose = this.brokensocket;
>> this.xsock.onXML = this.socketXMLAvailable;
>> if (! this.xsock.connect(host, port)) {
>> Debug.log("remote debugger could not connect to listener " + host + ":"
>> + port);
>> }
>> this.writeInitMessage();
>> }
>>
>>
>> /**
>> * @access private
>> */
>> Debug.writeInitMessage = function () {
>> var filename = LzBrowser.getLoadURLAsLzURL();
>> var myXML = new XML();
>> var init = myXML.createElement("init");
>> myXML.appendChild(init);
>> init.attributes.filename = filename;
>> init.attributes.language = "LZX";
>> init.attributes.protocol_version = "1.0";
>> init.attributes.build = canvas.lpsbuild;
>> init.attributes.lpsversion = canvas.lpsversion;
>> init.attributes.lpsrelease = canvas.lpsrelease;
>> init.attributes.runtime = canvas.runtime;
>> init.attributes.appid = "0";
>> this.xsock.send(myXML);
>> }
>>
>>
>> and the code to hook into the callback for received XML looks like
>>
>> Debug.socketXMLAvailable = function (doc) {
>> var e = doc.firstChild;
>> var rloader = Debug.rdbloader;
>> if (e != null) {
>> // clear warnings history
>> Debug.resetWarningHistory();
>> Debug.inEvalRequest = true;
>> var seqnum = e.attributes['seq'];
>> if (seqnum == null) {
>> seqnum = Debug.seqnum++;
>> }
>>
>> if (e.nodeName == "exec") {
>> var expr = e.firstChild.nodeValue;
>> rloader.request( { lz_load : false,
>> lzt : "eval",
>> proxied: true,
>> lzrdbseq : seqnum,
>> lz_script : "#file evalString\n#line 0\n" + expr
>> } );
>> } else if (e.nodeName == "eval") {
>> var expr = e.firstChild.nodeValue;
>> rloader.request( { lz_load : false,
>> lzt : "eval",
>> proxied: true,
>> &n bsp; lzrdbseq : seqnum,
>> lz_script : "#file evalString\n#line 0\n" +
>> expr } );
>> } else if (e.nodeName == "inspect") {
>> Debug.inEvalRequest = false;
>> var id = e.attributes.id <http://e.attributes.id>;
>> Debug.sockWriteAsXML(Debug.ObjectForID(id), seqnum);
>> } else {
>> Debug.inEvalRequest = false;
>> Debug.sockWrite("<response seq='"+seqnum+"'><error msg='unknown
>> remote debug command'>"+e.nodeName+"</error></response>");
>> }
>> } else {
>> Debug.inEvalRequest = false;
>> Debug.sockWrite("<response seq='-1'><error msg='null remote debug
>> command'/></response>");
>> }
>> }
>>
>>
>>
>>
>> You may want to put some of that code into a <script when="immediate">
>> block
>>
>> On Thu, May 8, 2008 at 9:30 AM, Evaldas Taroza <[EMAIL PROTECTED]<mailto:
>> [EMAIL PROTECTED]>> wrote:
>>
>> Hello,
>>
>> Thanks Henry for the pointer. Indeed I need a TCP socket. Normal
>> Dataset will not do the job, I think.
>>
>> When you say to use Flash API, how do I do it? I mean, in Flash I
>> suppose there is another programing language, like ActionScript, so
>> how do I do it from within OL then?
>>
>> And when you say that Flash API is not officially supported by OL
>> can it be that my app will eventually break, when you change
>> somethings inside OL?
>>
>> A bit about my problems:
>> As I told you I am taking my first steps with OL. So I decided to
>> write some simple chat program, which would support a very small
>> subset of XMPP. So as a start I need to send to the chat server the
>> following text:
>> <?xml version='1.0' encoding='UTF-8'?>
>> <stream:stream
>> to='localhost'
>> xmlns='jabber:client'
>> xmlns:stream='http://etherx.jabber.org/streams'
>> version='1.0'>
>>
>> And the server responds to something similar as well. As you can see
>> it is not a well-formed XML document, so I need to treat it as text
>> and parse it. All the subsequent communication happens with
>> well-formed XML snippets.
>>
>> Do you think it's possible?
>>
>> Evaldas
>>
>> Henry Minsky wrote:
>>
>> For streaming I/O to a TCP socket, if you restrict your self to
>> the Flash runtime, you can use the Flash XMLSocket API , which
>> has some restrictions, such as it must use TCP ports above 1024
>> I think.
>>
>> The API can be found in the Flash reference manual, it is not
>> officially a supported API in OpelLaszlo though.
>>
>> We used this API for one of the remote debugger protocols at one
>> point. There is still some code in the debugger implementation
>> for it I think, which could be used as an example.
>>
>>
>> On Thu, May 8, 2008 at 12:35 AM, Evaldas Taroza
>> <[EMAIL PROTECTED]
>> <mailto:[EMAIL PROTECTED]>
>> <mailto:[EMAIL PROTECTED]
>> <mailto:[EMAIL PROTECTED]>>> wrote:
>>
>> Dear OL users,
>>
>> I am pretty new to OL. What I am trying to achieve is to open a
>> socket to a host (crossdomain) and read incoming textual data.
>>
>> Incoming data will most likely be an XML document, but I
>> don't want
>> to read the whole document, I rather need to deal with it as it
>> comes, in a streaming manner. How can I achieve this?
>>
>> Thank you very much for help!
>>
>> Evaldas
>>
>> -- +41 79 616 53 76
>> www.linkedin.com/in/taroza
>> <http://www.linkedin.com/in/taroza>
>> <http://www.linkedin.com/in/taroza>
>>
>> Optaros - www.optaros.com <http://www.optaros.com>
>> <http://www.optaros.com>
>>
>>
>>
>>
>> -- Henry Minsky
>> Software Architect
>> [EMAIL PROTECTED]
>> <mailto:[EMAIL PROTECTED]>
>> <mailto:[EMAIL PROTECTED]
>> <mailto:[EMAIL PROTECTED]>>
>>
>>
>>
>>
>> -- +41 79 616 53 76
>> www.linkedin.com/in/taroza <http://www.linkedin.com/in/taroza>
>>
>> Optaros - www.optaros.com <http://www.optaros.com>
>>
>>
>>
>>
>> --
>> Henry Minsky
>> Software Architect
>> [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
>>
>>
>
>
> --
> +41 79 616 53 76
> www.linkedin.com/in/taroza
>
> Optaros - www.optaros.com
>
>
--
Henry Minsky
Software Architect
[EMAIL PROTECTED]
