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Posted to users@activemq.apache.org by cmoulliard <cm...@gmail.com> on 2008/10/21 15:57:25 UTC
Where the Message object (javascript) of amq.js is defined ?
Hi,
I would like to know where the javascript object Message used by
AJAX/ActiveMq in a HTML page is defined ? I see in the portfolio example
that we can use the following method "message.getAttribute('stock')" to
access part of the xml message returned by the queue engine through the
MessageListenerServlet but I would like to know what are the methods /
variables available for this message object (which is normally a mirror of
the jax.jms.Message object) ?
KR,
Charles Moulliard
-----
Enterprise Architect
Xpectis
12, route d'Esch
L-1470 Luxembourg
Phone +352 25 10 70 470
Mobile +352 621 45 36 22
e-mail : cmoulliard@xpectis.com
web site : www.xpectis.com www.xpectis.com
My Blog : http://cmoulliard.blogspot.com/ http://cmoulliard.blogspot.com/
--
View this message in context: http://www.nabble.com/Where-the-Message-object-%28javascript%29-of-amq.js-is-defined---tp20090852p20090852.html
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Re: Where the Message object (javascript) of amq.js is defined ?
Posted by Dejan Bosanac <de...@ttmsolutions.com>.
I've just added some explanation about this.
Cheers
--
Dejan Bosanac
http://www.ttmsolutions.com - get a free ActiveMQ user guide
ActiveMQ in Action - http://www.manning.com/snyder/
Scripting in Java - http://www.scriptinginjava.net
cmoulliard wrote:
> Many thanks Dejan.
>
> It could be interesting to update the ajax.html page with the above text in
> order to help all the users that we are ;)
>
> KR,
>
> Charles
>
>
> Dejan Bosanac-3 wrote:
>
>> Hi Charles,
>>
>> stock portfolio example sends XML in a text message to the Ajax client.
>> Therefore, you'll get the response like this (full body).
>>
>> <ajax-response>
>> <response id='stocks' destination='topic://STOCKS.*' ><price
>> stock='BEAS' bid='94.08395193508605' offer='94.17803588702112'
>> movement='up'/></response>
>> </ajax-response>
>>
>> the "message object" you see is just the <price ... /> xml text and
>> getAttribute() is JavaScript way of handling XML tag attributes.
>> So, there is no "definition" of message object, it's just what you send
>> to the broker; text if it is a TextMessage or object.toString in case of
>> object message.
>>
>> Also you can find _amq.js which contains the whole Ajax JavaScript logic
>> here
>>
>> http://svn.apache.org/viewvc/activemq/trunk/activemq-web/src/main/resources/org/apache/activemq/web/_amq.js?view=markup
>>
>> Cheers
>>
>> --
>> Dejan Bosanac
>>
>>
>> http://www.ttmsolutions.com - get a free ActiveMQ user guide
>>
>> ActiveMQ in Action - http://www.manning.com/snyder/
>> Scripting in Java - http://www.scriptinginjava.net
>>
>>
>>
>>
>> cmoulliard wrote:
>>
>>> Hi,
>>>
>>> Additional question : What is the javascript class of the message
>>> returned
>>> (DOM, XMLHTTPResuest, ....) ?
>>>
>>> The existing doc does not help us because in the two example, we saw that
>>> we
>>> can use message.getAttribute or message.getChildNodes[0], ... ?
>>>
>>> KR,
>>>
>>> Charles Moulliard
>>>
>>>
>>> cmoulliard wrote:
>>>
>>>
>>>> Hi,
>>>>
>>>> I would like to know where the javascript object Message used by
>>>> AJAX/ActiveMq in a HTML page is defined ? I see in the portfolio example
>>>> that we can use the following method "message.getAttribute('stock')" to
>>>> access part of the xml message returned by the queue engine through the
>>>> MessageListenerServlet but I would like to know what are the methods /
>>>> variables available for this message object (which is normally a mirror
>>>> of
>>>> the jax.jms.Message object) ?
>>>>
>>>> To be more precise, here is a copy/paste of the portfolio.js script of
>>>> the
>>>> example where message appears at the line _price: function(message)
>>>>
>>>> var priceHandler = {
>>>> _price: function(message) {
>>>> if (message != null) {
>>>> var price = parseFloat(message.getAttribute('bid'))
>>>> var symbol = message.getAttribute('stock')
>>>> var movement = message.getAttribute('movement')
>>>> if (movement == null) {
>>>> movement = 'up'
>>>> }
>>>>
>>>> var row = document.getElementById(symbol)
>>>> if (row) {
>>>> // perform portfolio calculations
>>>> var value = asFloat(find(row, 'amount')) * price
>>>> var pl = value - asFloat(find(row, 'cost'))
>>>>
>>>> // now lets update the HTML DOM
>>>> find(row, 'price').innerHTML = fixedDigits(price, 2)
>>>> find(row, 'value').innerHTML = fixedDigits(value, 2)
>>>> find(row, 'pl').innerHTML = fixedDigits(pl, 2)
>>>> find(row, 'price').className = movement
>>>> find(row, 'pl').className = pl >= 0 ? 'up' : 'down'
>>>> }
>>>> }
>>>> }
>>>> };
>>>>
>>>> function portfolioPoll(first)
>>>> {
>>>> if (first)
>>>> {
>>>> amq.addListener('stocks','topic://STOCKS.*',priceHandler._price);
>>>> }
>>>> }
>>>>
>>>> amq.addPollHandler(portfolioPoll);
>>>>
>>>> Remark : addtiaional question
>>>> - Who will cal the function portfolioPoll(first) function ?
>>>> - How is the parameter first which is a boolean setted ?
>>>>
>>>> KR,
>>>>
>>>> Charles Moulliard
>>>>
>>>>
>>>>
>>> -----
>>> Enterprise Architect
>>>
>>> Xpectis
>>> 12, route d'Esch
>>> L-1470 Luxembourg
>>>
>>> Phone +352 25 10 70 470
>>> Mobile +352 621 45 36 22
>>>
>>> e-mail : cmoulliard@xpectis.com
>>> web site : www.xpectis.com www.xpectis.com
>>> My Blog : http://cmoulliard.blogspot.com/
>>> http://cmoulliard.blogspot.com/
>>>
>>>
>>
>>
>>
>
>
> -----
> Enterprise Architect
>
> Xpectis
> 12, route d'Esch
> L-1470 Luxembourg
>
> Phone +352 25 10 70 470
> Mobile +352 621 45 36 22
>
> e-mail : cmoulliard@xpectis.com
> web site : www.xpectis.com www.xpectis.com
> My Blog : http://cmoulliard.blogspot.com/ http://cmoulliard.blogspot.com/
>
Re: Where the Message object (javascript) of amq.js is defined ?
Posted by cmoulliard <cm...@gmail.com>.
Many thanks Dejan.
It could be interesting to update the ajax.html page with the above text in
order to help all the users that we are ;)
KR,
Charles
Dejan Bosanac-3 wrote:
>
> Hi Charles,
>
> stock portfolio example sends XML in a text message to the Ajax client.
> Therefore, you'll get the response like this (full body).
>
> <ajax-response>
> <response id='stocks' destination='topic://STOCKS.*' ><price
> stock='BEAS' bid='94.08395193508605' offer='94.17803588702112'
> movement='up'/></response>
> </ajax-response>
>
> the "message object" you see is just the <price ... /> xml text and
> getAttribute() is JavaScript way of handling XML tag attributes.
> So, there is no "definition" of message object, it's just what you send
> to the broker; text if it is a TextMessage or object.toString in case of
> object message.
>
> Also you can find _amq.js which contains the whole Ajax JavaScript logic
> here
>
> http://svn.apache.org/viewvc/activemq/trunk/activemq-web/src/main/resources/org/apache/activemq/web/_amq.js?view=markup
>
> Cheers
>
> --
> Dejan Bosanac
>
>
> http://www.ttmsolutions.com - get a free ActiveMQ user guide
>
> ActiveMQ in Action - http://www.manning.com/snyder/
> Scripting in Java - http://www.scriptinginjava.net
>
>
>
>
> cmoulliard wrote:
>> Hi,
>>
>> Additional question : What is the javascript class of the message
>> returned
>> (DOM, XMLHTTPResuest, ....) ?
>>
>> The existing doc does not help us because in the two example, we saw that
>> we
>> can use message.getAttribute or message.getChildNodes[0], ... ?
>>
>> KR,
>>
>> Charles Moulliard
>>
>>
>> cmoulliard wrote:
>>
>>> Hi,
>>>
>>> I would like to know where the javascript object Message used by
>>> AJAX/ActiveMq in a HTML page is defined ? I see in the portfolio example
>>> that we can use the following method "message.getAttribute('stock')" to
>>> access part of the xml message returned by the queue engine through the
>>> MessageListenerServlet but I would like to know what are the methods /
>>> variables available for this message object (which is normally a mirror
>>> of
>>> the jax.jms.Message object) ?
>>>
>>> To be more precise, here is a copy/paste of the portfolio.js script of
>>> the
>>> example where message appears at the line _price: function(message)
>>>
>>> var priceHandler = {
>>> _price: function(message) {
>>> if (message != null) {
>>> var price = parseFloat(message.getAttribute('bid'))
>>> var symbol = message.getAttribute('stock')
>>> var movement = message.getAttribute('movement')
>>> if (movement == null) {
>>> movement = 'up'
>>> }
>>>
>>> var row = document.getElementById(symbol)
>>> if (row) {
>>> // perform portfolio calculations
>>> var value = asFloat(find(row, 'amount')) * price
>>> var pl = value - asFloat(find(row, 'cost'))
>>>
>>> // now lets update the HTML DOM
>>> find(row, 'price').innerHTML = fixedDigits(price, 2)
>>> find(row, 'value').innerHTML = fixedDigits(value, 2)
>>> find(row, 'pl').innerHTML = fixedDigits(pl, 2)
>>> find(row, 'price').className = movement
>>> find(row, 'pl').className = pl >= 0 ? 'up' : 'down'
>>> }
>>> }
>>> }
>>> };
>>>
>>> function portfolioPoll(first)
>>> {
>>> if (first)
>>> {
>>> amq.addListener('stocks','topic://STOCKS.*',priceHandler._price);
>>> }
>>> }
>>>
>>> amq.addPollHandler(portfolioPoll);
>>>
>>> Remark : addtiaional question
>>> - Who will cal the function portfolioPoll(first) function ?
>>> - How is the parameter first which is a boolean setted ?
>>>
>>> KR,
>>>
>>> Charles Moulliard
>>>
>>>
>>
>>
>> -----
>> Enterprise Architect
>>
>> Xpectis
>> 12, route d'Esch
>> L-1470 Luxembourg
>>
>> Phone +352 25 10 70 470
>> Mobile +352 621 45 36 22
>>
>> e-mail : cmoulliard@xpectis.com
>> web site : www.xpectis.com www.xpectis.com
>> My Blog : http://cmoulliard.blogspot.com/
>> http://cmoulliard.blogspot.com/
>>
>
>
>
>
-----
Enterprise Architect
Xpectis
12, route d'Esch
L-1470 Luxembourg
Phone +352 25 10 70 470
Mobile +352 621 45 36 22
e-mail : cmoulliard@xpectis.com
web site : www.xpectis.com www.xpectis.com
My Blog : http://cmoulliard.blogspot.com/ http://cmoulliard.blogspot.com/
--
View this message in context: http://www.nabble.com/Where-the-Message-object-%28javascript%29-of-amq.js-is-defined---tp20090852p20110798.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Re: Where the Message object (javascript) of amq.js is defined ?
Posted by Dejan Bosanac <de...@ttmsolutions.com>.
Hi Charles,
stock portfolio example sends XML in a text message to the Ajax client.
Therefore, you'll get the response like this (full body).
<ajax-response>
<response id='stocks' destination='topic://STOCKS.*' ><price
stock='BEAS' bid='94.08395193508605' offer='94.17803588702112'
movement='up'/></response>
</ajax-response>
the "message object" you see is just the <price ... /> xml text and
getAttribute() is JavaScript way of handling XML tag attributes.
So, there is no "definition" of message object, it's just what you send
to the broker; text if it is a TextMessage or object.toString in case of
object message.
Also you can find _amq.js which contains the whole Ajax JavaScript logic
here
http://svn.apache.org/viewvc/activemq/trunk/activemq-web/src/main/resources/org/apache/activemq/web/_amq.js?view=markup
Cheers
--
Dejan Bosanac
http://www.ttmsolutions.com - get a free ActiveMQ user guide
ActiveMQ in Action - http://www.manning.com/snyder/
Scripting in Java - http://www.scriptinginjava.net
cmoulliard wrote:
> Hi,
>
> Additional question : What is the javascript class of the message returned
> (DOM, XMLHTTPResuest, ....) ?
>
> The existing doc does not help us because in the two example, we saw that we
> can use message.getAttribute or message.getChildNodes[0], ... ?
>
> KR,
>
> Charles Moulliard
>
>
> cmoulliard wrote:
>
>> Hi,
>>
>> I would like to know where the javascript object Message used by
>> AJAX/ActiveMq in a HTML page is defined ? I see in the portfolio example
>> that we can use the following method "message.getAttribute('stock')" to
>> access part of the xml message returned by the queue engine through the
>> MessageListenerServlet but I would like to know what are the methods /
>> variables available for this message object (which is normally a mirror of
>> the jax.jms.Message object) ?
>>
>> To be more precise, here is a copy/paste of the portfolio.js script of the
>> example where message appears at the line _price: function(message)
>>
>> var priceHandler = {
>> _price: function(message) {
>> if (message != null) {
>> var price = parseFloat(message.getAttribute('bid'))
>> var symbol = message.getAttribute('stock')
>> var movement = message.getAttribute('movement')
>> if (movement == null) {
>> movement = 'up'
>> }
>>
>> var row = document.getElementById(symbol)
>> if (row) {
>> // perform portfolio calculations
>> var value = asFloat(find(row, 'amount')) * price
>> var pl = value - asFloat(find(row, 'cost'))
>>
>> // now lets update the HTML DOM
>> find(row, 'price').innerHTML = fixedDigits(price, 2)
>> find(row, 'value').innerHTML = fixedDigits(value, 2)
>> find(row, 'pl').innerHTML = fixedDigits(pl, 2)
>> find(row, 'price').className = movement
>> find(row, 'pl').className = pl >= 0 ? 'up' : 'down'
>> }
>> }
>> }
>> };
>>
>> function portfolioPoll(first)
>> {
>> if (first)
>> {
>> amq.addListener('stocks','topic://STOCKS.*',priceHandler._price);
>> }
>> }
>>
>> amq.addPollHandler(portfolioPoll);
>>
>> Remark : addtiaional question
>> - Who will cal the function portfolioPoll(first) function ?
>> - How is the parameter first which is a boolean setted ?
>>
>> KR,
>>
>> Charles Moulliard
>>
>>
>
>
> -----
> Enterprise Architect
>
> Xpectis
> 12, route d'Esch
> L-1470 Luxembourg
>
> Phone +352 25 10 70 470
> Mobile +352 621 45 36 22
>
> e-mail : cmoulliard@xpectis.com
> web site : www.xpectis.com www.xpectis.com
> My Blog : http://cmoulliard.blogspot.com/ http://cmoulliard.blogspot.com/
>
Re: Where the Message object (javascript) of amq.js is defined ?
Posted by cmoulliard <cm...@gmail.com>.
Hi,
Additional question : What is the javascript class of the message returned
(DOM, XMLHTTPResuest, ....) ?
The existing doc does not help us because in the two example, we saw that we
can use message.getAttribute or message.getChildNodes[0], ... ?
KR,
Charles Moulliard
cmoulliard wrote:
>
> Hi,
>
> I would like to know where the javascript object Message used by
> AJAX/ActiveMq in a HTML page is defined ? I see in the portfolio example
> that we can use the following method "message.getAttribute('stock')" to
> access part of the xml message returned by the queue engine through the
> MessageListenerServlet but I would like to know what are the methods /
> variables available for this message object (which is normally a mirror of
> the jax.jms.Message object) ?
>
> To be more precise, here is a copy/paste of the portfolio.js script of the
> example where message appears at the line _price: function(message)
>
> var priceHandler = {
> _price: function(message) {
> if (message != null) {
> var price = parseFloat(message.getAttribute('bid'))
> var symbol = message.getAttribute('stock')
> var movement = message.getAttribute('movement')
> if (movement == null) {
> movement = 'up'
> }
>
> var row = document.getElementById(symbol)
> if (row) {
> // perform portfolio calculations
> var value = asFloat(find(row, 'amount')) * price
> var pl = value - asFloat(find(row, 'cost'))
>
> // now lets update the HTML DOM
> find(row, 'price').innerHTML = fixedDigits(price, 2)
> find(row, 'value').innerHTML = fixedDigits(value, 2)
> find(row, 'pl').innerHTML = fixedDigits(pl, 2)
> find(row, 'price').className = movement
> find(row, 'pl').className = pl >= 0 ? 'up' : 'down'
> }
> }
> }
> };
>
> function portfolioPoll(first)
> {
> if (first)
> {
> amq.addListener('stocks','topic://STOCKS.*',priceHandler._price);
> }
> }
>
> amq.addPollHandler(portfolioPoll);
>
> Remark : addtiaional question
> - Who will cal the function portfolioPoll(first) function ?
> - How is the parameter first which is a boolean setted ?
>
> KR,
>
> Charles Moulliard
>
-----
Enterprise Architect
Xpectis
12, route d'Esch
L-1470 Luxembourg
Phone +352 25 10 70 470
Mobile +352 621 45 36 22
e-mail : cmoulliard@xpectis.com
web site : www.xpectis.com www.xpectis.com
My Blog : http://cmoulliard.blogspot.com/ http://cmoulliard.blogspot.com/
--
View this message in context: http://www.nabble.com/Where-the-Message-object-%28javascript%29-of-amq.js-is-defined---tp20090852p20106488.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.