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Posted to dev@commons.apache.org by Michael musset <mi...@gmail.com> on 2010/11/26 19:03:20 UTC
SCXML : send & transition doesn't work when they are in the same state.
Hi,
I'm having a problem in my scxml project :
<state id="STATE_START">
<onentry>
<send target="test" targettype="'x-csta'" xmlns:csta="
http://www.ecma.ch/standards/ecma-323/csta">
<EVENT TARGET="test" TAG="EVENT_HELLO">
<![CDATA[
my data
]]>
</EVENT>
</send>
</onentry>
<transition event="EVENT_TEST" target="STATE_1" cond="_eventdata.DATA1
eq 'ok'"/>
<transition event="EVENT_START" target="STATE_START" />
</state>
the send tag is recuperate properly by the the eventdispatcher ( I need what
is inside the send tag) , but I can't manage to change state into the
STATE_1.
And If I remove the all <send >... </send> tag , the transition is working,
I manage to change state into the STATE_1.
So what is wrong? I'm using JexlEvaluator and JexlContext for my engine.
Thanks in advance for the help !!!
Re: SCXML : send & transition doesn't work when they are in the same state.
Posted by Rahul Akolkar <ra...@gmail.com>.
On Sun, Nov 28, 2010 at 7:51 AM, Micka <mi...@gmail.com> wrote:
> Hi,
>
> The problem is happening when I initalize manually the state of my machine,
> and I trigger the event.
> do you think that initializing the state manullay is causing the problem ?
>
<snip/>
Initializing to the state manually as below seems fine. What such
initialization will not do, however, is cause the execution of the
<onentry> of said state, as the state machine is already considered to
be in that state. So, in the original example below, if "STATE_START"
is that persisted state which is restored the <oentry> and thereby the
contained <send> will not be executed.
I don't see anything unexpected in the EventDispatcher implementation.
-Rahul
> public class NEventDispatcher implements EventDispatcher {
> public NEventDispatcher() {
> }
> @Override
> public void cancel(String arg0) {
> }
> @SuppressWarnings("unused")
> @Override
> public void send(String sendId, String targe, String type, String event,
> Map params, Object hints, long delay, List externalNodes) {
> if (externalNodes == null || externalNodes.size() <= 0)
> return;
> // some stupid code here, i'm just inserting the information in my
> database
> }
> }
>
>
> The implementation of the machine that i use :
>
> tracer = new NTracer();
> nEventDispatcher=new NEventDispatcher();
> exec = new SCXMLExecutor(new JexlEvaluator(), nEventDispatcher,
> tracer);
> exec.setStateMachine(config);
> exec.addListener(config, tracer);
> map=new HashMap();
> jExlCtx = new JexlContext(map);
> exec.setRootContext(jExlCtx);
> exec.setErrorReporter(tracer);
>
> and how i'm initializing the state :
>
>
> @SuppressWarnings("unchecked")
> public void setInitialState(String idOfPersistedState)throws Exception {
> if (idOfPersistedState != null) {
> Map<String, State> allStates =
> exec.getStateMachine().getTargets();
> State state = allStates.get(idOfPersistedState);
> if (state == null) {
> throw new Exception("Unknown state "
> + idOfPersistedState);
> }
> // got the state, now set it
> @SuppressWarnings("rawtypes")
> Set states = exec.getCurrentStatus().getStates();
> states.clear();
> states.add(state);
> }
> }
>
>
> On Fri, Nov 26, 2010 at 7:14 PM, Rahul Akolkar <ra...@gmail.com>
> wrote:
>>
>> This is a post for the user list, but please see below first ...
>>
>> On Fri, Nov 26, 2010 at 1:03 PM, Michael musset <mi...@gmail.com>
>> wrote:
>> > Hi,
>> >
>> >
>> > I'm having a problem in my scxml project :
>> >
>> > <state id="STATE_START">
>> > <onentry>
>> > <send target="test" targettype="'x-csta'" xmlns:csta="
>> > http://www.ecma.ch/standards/ecma-323/csta">
>> > <EVENT TARGET="test" TAG="EVENT_HELLO">
>> > <![CDATA[
>> > my data
>> > ]]>
>> > </EVENT>
>> > </send>
>> > </onentry>
>> > <transition event="EVENT_TEST" target="STATE_1"
>> > cond="_eventdata.DATA1
>> > eq 'ok'"/>
>> > <transition event="EVENT_START" target="STATE_START" />
>> > </state>
>> >
>> > the send tag is recuperate properly by the the eventdispatcher ( I need
>> > what
>> > is inside the send tag) , but I can't manage to change state into the
>> > STATE_1.
>> > And If I remove the all <send >... </send> tag , the transition is
>> > working,
>> > I manage to change state into the STATE_1.
>> >
>> >
>> > So what is wrong? I'm using JexlEvaluator and JexlContext for my engine.
>> >
>> <snip/>
>>
>> We'll need to know what your EventDispatcher implementation is doing
>> that might disrupt processing the original event, which is why the
>> payload guard condition may no longer hold for the transition you
>> expect to be taken. Lets continue on the Commons User list, see:
>>
>> http://commons.apache.org/mail-lists.html
>>
>> -Rahul
>>
>>
>> >
>> >
>> > Thanks in advance for the help !!!
>> >
>>
>
>
> --
> Michael Musset,
> Tel: 06 26 06 29 89
>
>
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Re: SCXML : send & transition doesn't work when they are in the same state.
Posted by Micka <mi...@gmail.com>.
Hi,
The problem is happening when I initalize manually the state of my machine,
and I trigger the event.
do you think that initializing the state manullay is causing the problem ?
public class NEventDispatcher implements EventDispatcher {
public NEventDispatcher() {
}
@Override
public void cancel(String arg0) {
}
@SuppressWarnings("unused")
@Override
public void send(String sendId, String targe, String type, String event,
Map params, Object hints, long delay, List externalNodes) {
if (externalNodes == null || externalNodes.size() <= 0)
return;
// some stupid code here, i'm just inserting the information in my
database
}
}
The implementation of the machine that i use :
tracer = new NTracer();
nEventDispatcher=new NEventDispatcher();
exec = new SCXMLExecutor(new JexlEvaluator(), nEventDispatcher,
tracer);
exec.setStateMachine(config);
exec.addListener(config, tracer);
map=new HashMap();
jExlCtx = new JexlContext(map);
exec.setRootContext(jExlCtx);
exec.setErrorReporter(tracer);
and how i'm initializing the state :
@SuppressWarnings("unchecked")
public void setInitialState(String idOfPersistedState)throws Exception {
if (idOfPersistedState != null) {
Map<String, State> allStates =
exec.getStateMachine().getTargets();
State state = allStates.get(idOfPersistedState);
if (state == null) {
throw new Exception("Unknown state "
+ idOfPersistedState);
}
// got the state, now set it
@SuppressWarnings("rawtypes")
Set states = exec.getCurrentStatus().getStates();
states.clear();
states.add(state);
}
}
On Fri, Nov 26, 2010 at 7:14 PM, Rahul Akolkar <ra...@gmail.com>wrote:
> This is a post for the user list, but please see below first ...
>
> On Fri, Nov 26, 2010 at 1:03 PM, Michael musset <mi...@gmail.com>
> wrote:
> > Hi,
> >
> >
> > I'm having a problem in my scxml project :
> >
> > <state id="STATE_START">
> > <onentry>
> > <send target="test" targettype="'x-csta'" xmlns:csta="
> > http://www.ecma.ch/standards/ecma-323/csta">
> > <EVENT TARGET="test" TAG="EVENT_HELLO">
> > <![CDATA[
> > my data
> > ]]>
> > </EVENT>
> > </send>
> > </onentry>
> > <transition event="EVENT_TEST" target="STATE_1"
> cond="_eventdata.DATA1
> > eq 'ok'"/>
> > <transition event="EVENT_START" target="STATE_START" />
> > </state>
> >
> > the send tag is recuperate properly by the the eventdispatcher ( I need
> what
> > is inside the send tag) , but I can't manage to change state into the
> > STATE_1.
> > And If I remove the all <send >... </send> tag , the transition is
> working,
> > I manage to change state into the STATE_1.
> >
> >
> > So what is wrong? I'm using JexlEvaluator and JexlContext for my engine.
> >
> <snip/>
>
> We'll need to know what your EventDispatcher implementation is doing
> that might disrupt processing the original event, which is why the
> payload guard condition may no longer hold for the transition you
> expect to be taken. Lets continue on the Commons User list, see:
>
> http://commons.apache.org/mail-lists.html
>
> -Rahul
>
>
> >
> >
> > Thanks in advance for the help !!!
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@commons.apache.org
> For additional commands, e-mail: dev-help@commons.apache.org
>
>
--
Michael Musset,
Tel: 06 26 06 29 89
Re: SCXML : send & transition doesn't work when they are in the same state.
Posted by Rahul Akolkar <ra...@gmail.com>.
This is a post for the user list, but please see below first ...
On Fri, Nov 26, 2010 at 1:03 PM, Michael musset <mi...@gmail.com> wrote:
> Hi,
>
>
> I'm having a problem in my scxml project :
>
> <state id="STATE_START">
> <onentry>
> <send target="test" targettype="'x-csta'" xmlns:csta="
> http://www.ecma.ch/standards/ecma-323/csta">
> <EVENT TARGET="test" TAG="EVENT_HELLO">
> <![CDATA[
> my data
> ]]>
> </EVENT>
> </send>
> </onentry>
> <transition event="EVENT_TEST" target="STATE_1" cond="_eventdata.DATA1
> eq 'ok'"/>
> <transition event="EVENT_START" target="STATE_START" />
> </state>
>
> the send tag is recuperate properly by the the eventdispatcher ( I need what
> is inside the send tag) , but I can't manage to change state into the
> STATE_1.
> And If I remove the all <send >... </send> tag , the transition is working,
> I manage to change state into the STATE_1.
>
>
> So what is wrong? I'm using JexlEvaluator and JexlContext for my engine.
>
<snip/>
We'll need to know what your EventDispatcher implementation is doing
that might disrupt processing the original event, which is why the
payload guard condition may no longer hold for the transition you
expect to be taken. Lets continue on the Commons User list, see:
http://commons.apache.org/mail-lists.html
-Rahul
>
>
> Thanks in advance for the help !!!
>
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