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Posted to user@commons.apache.org by Guilherme Silveira <gu...@gmail.com> on 2016/01/22 17:58:47 UTC
SCXML project
Hi Folks
I am new to FSM and new to SCXML. On the other hand, I am expert in
Simulink, expert in Java and expert in model based systems engineering.
I am currently evaluating SCXML and I would like a*honest, non biased
opinion *on the status of SCXML project.
What I would like to assert if this project has a future, the number of
developers, if the SCXML specification will ever reach a stable
status....and so on
So far, I have noticed few integrations with proprietary softwares....
Simulink Stateflow does not export to SCXML, neither does IBM Rhapsody.
How difficult would it be to create custom tool for these integrations? And
most important, is it REALLY possible to implement in Java all the
functionalities of Simulink Stateflow, without any drawback, with a
friendly user experience and a steep learning curve?
ps: I am not from telecom industry
[SCXML] Re: SCXML project
Posted by Jacob Beard <jb...@cs.mcgill.ca>.
Hi Guilherme,
I have used SCXML for use cases outside of telecom, including to control hardware in industrial systems. Semantically, SCXML has most of the features of Statecharts, the language upon which Stateflow is based, and it works well for this use case.
Unlike Stateflow, SCXML does not have a dedicated graphical IDE. The development I have done has primarily involved editing SCXML by hand, and applying automated visualization using D3. I have heard of other SCXML developers doing the same. I believe MagicDraw <http://www.nomagic.com/products/magicdraw-addons/cameo-simulation-toolkit.html> supports SCXML, but I have not tried it.
There are also semantic difference between SCXML and Stateflow. For example, transition priority: Stateflow uses a graphical syntax, based on a clockwise <http://www.mathworks.com/help/stateflow/ug/evaluation-order-for-outgoing-transitions.html> ordering, while SCXML relies on document order of the transition nodes in the XML document.
It would be interesting to combine an SCXML engine with open source software for modeling system dynamics, such as Modelica <https://www.modelica.org/> Xcos <https://www.scilab.org/scilab/features/xcos>, or Minsky <http://sourceforge.net/projects/minsky/>, to create an open stack of simulation software.
Please feel free to reach me with any questions. Thank you,
Jacob Beard
> On Jan 22, 2016, at 11:58 AM, Guilherme Silveira <gu...@gmail.com> wrote:
>
> Hi Folks
>
> I am new to FSM and new to SCXML. On the other hand, I am expert in
> Simulink, expert in Java and expert in model based systems engineering.
>
> I am currently evaluating SCXML and I would like a*honest, non biased
> opinion *on the status of SCXML project.
>
> What I would like to assert if this project has a future, the number of
> developers, if the SCXML specification will ever reach a stable
> status....and so on
>
> So far, I have noticed few integrations with proprietary softwares....
> Simulink Stateflow does not export to SCXML, neither does IBM Rhapsody.
>
> How difficult would it be to create custom tool for these integrations? And
> most important, is it REALLY possible to implement in Java all the
> functionalities of Simulink Stateflow, without any drawback, with a
> friendly user experience and a steep learning curve?
>
> ps: I am not from telecom industry
RE: SCXML project
Posted by Martin Gainty <mg...@hotmail.com>.
> Subject: Re: SCXML project
> To: user@commons.apache.org
> From: ate@douma.nu
> Date: Mon, 1 Feb 2016 23:34:39 +0100
>
> Hi Martin,
>
> I've disabled JDK 8 javadoc doclint which should 'fix' your below problem.
>
> BTW: can you please use properly wrapped/formatted plain text for your email?
> Like your previous message, content below is pretty much unreadable ...
MG>this is a freebie emailer I picked up in 96 whose primary format is HtmL and not plain text
MG>for paying work I use mgaintynt@gmail.com (I also have mail username on my own site which supports plain text)
MG>Thanks Ate
>
> Ate
>
> On 2016-01-28 14:32, Martin Gainty wrote:
>> Hi Atecurrently testing what happens when log4j.properties or log4j.xml is missing (cured by inserting a working log4j.properties into scxml classpath)
>> I am currently experiencing this failure:
>> Javadoc failure with:
>>
>> Caused by: org.apache.maven.plugin.MojoExecutionException: Error generating maven-javadoc-plugin:2.10.3:javadoc:Exit code: 1 - \scxml\src\main\java\org\apache\commons\scxml2\SCInstanceObjectInputStream.java:80: error: unexpected end tag: *
>> Here is the code:
>> /** * Set custom class resolver callback, or null when no longer needed. * * Typically usage: * * private void readObject(ObjectInputStream in) throws IOException,ClassNotFoundException { * ClassResolver currentClassResolver = null; * try { * if (in instanceof SCInstanceObjectInputStream) { * currentClassResolver = ((SCInstanceObjectInputStream)in).setClassResolver(customClassResolver); * } * ... // read Object(s) * } * finally { * if (in instanceof SCInstanceObjectInputStream) { * ((SCInstanceObjectInputStream)in).setClassResolver(currentClassResolver); * } * } * } * *
* @see org.apache.commons.scxml2.env.groovy.GroovyContext#readObject(ObjectInputStream) * @param classResolver custom class resolver */ public ClassResolver setClassResolver(ClassResolver classResolver) {
> ClassResolver old = this.classResolver; this.classResolver = classResolver; return old; }
>> fubars javadoc and fails the build..for now i can comment out the and
inside comments to bypass
>>
>> Suggestions are welcomethanksMartin
>> ______________________________________________
>>
>>
>>
>>> Subject: Re: SCXML project
>>> To: user@commons.apache.org
>>> From: ate@douma.nu
>>> Date: Wed, 27 Jan 2016 22:10:50 +0100
>>>
>>> On 2016-01-26 22:36, Martin Gainty wrote:
>>>>
>>>> mvn package doesnt package (testcase fails) currently
>>>>
>>>>
>>>> java.lang.NullPointerException: null at
>>>> org.apache.commons.logging.impl.SLF4JLog.isDebugEnabled(SLF4JLog.java:49) at
>>>> org.apache.commons.scxml2.env.SimpleContext.setLocal(SimpleContext.java:178) at
>>>> org.apache.commons.scxml2.SCXMLExecutionContext.initializeIOProcessors(SCXMLExecutionContext.java:358) at
>>>> org.apache.commons.scxml2.SCXMLExecutionContext.attachInstance(SCXMLExecutionContext.java:397) at
>>>> org.apache.commons.scxml2.SCXMLExecutor.attachInstance(SCXMLExecutor.java:398) at
>>>> org.apache.commons.scxml2.SCXMLTestHelper.testInstanceSerializability(SCXMLTestHelper.java:258) at
>>>> org.apache.commons.scxml2.SCXMLExecutorTest.testSCXMLExecutorTransitions02Sample(SCXMLExecutorTest.java:139)
>>>>
>>>> correct this small bug lurking in org.apache.commons.scxml2.env.SimpleContext.java
>>>>
>>>> /**
>>>> * Assigns a new value to an existing variable or creates a new one.
>>>> * The method allows to shaddow a variable of the same name up the
>>>> * Context chain.
>>>> *
>>>> * @param name The variable name
>>>> * @param value The variable value
>>>> * @see org.apache.commons.scxml2.Context#setLocal(String, Object)
>>>> * as someone forgot to initialize log toss a System.out.println
>>>> */
>>>> public void setLocal(final String name, final Object value) {
>>>> getVars().put(name, value);
>>>> try {
>>>> if (log.isDebugEnabled()) {
>>>> log.debug(name + " = " + String.valueOf(value));
>>>> }
>>>> }
>>>> catch(NullPointerException npe) {
>>>> System.out.println("SimpleContext::setLocal log.isDebugEnabled() where log="+log+" name="+name+" throws NPE");
>>>> }
>>>> }
>>>>
>>>> *Obrigado Guilherme*
>>>> Martín
>>>
>>> AFAICT the above NPE only can occur when configuring an invalid/wrong logging
>>> class (like in the pom.xml for the maven-surefire-plugin) and/or through
>>> explicitly set the the Log instance to null in SimpleContext.java.
>>>
>>> When using a clean checkout/clone of the current SCXML git repository (master)
>>> this definitely is not the case, and mvn package works just fine.
>>>
>>> So possibly you have local modifications, either to the pom.xml logging
>>> configuration or otherwise causing this exception?
>>>
>>> Regards, Ate
>>>
>>>>
>>>>> Date: Mon, 25 Jan 2016 23:42:01 -0200
>>>>> Subject: Re: SCXML project
>>>>> From: guilhermecgsspam@gmail.com
>>>>> To: user@commons.apache.org
>>>>>
>>>>> Ok Folks,
>>>>>
>>>>>
>>>>> I will evaluate SCXML.
>>>>>
>>>>> BTW, I found these paper and it sounds interesting:
>>>>>
>>>>> http://cdn.intechopen.com/pdfs-wm/46457.pdf
>>>>>
>>>>> It looks like it exports Stateflow to SCXML
>>>>
>>>> MG>will Stateflow support Harel FSM?
>>>> MG>Please confirmMG>Obrigado!
>>>>>
>>>>> On Sun, Jan 24, 2016 at 10:32 AM, Martin Gainty wrote:
>>>>>
>>>>>> +1
>>>>>> Thanks Gary!
>>>>>> Martin Gainty
>>>>>> ______________________________________________
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Date: Sat, 23 Jan 2016 14:07:08 -0800
>>>>>>> Subject: Re: SCXML project
>>>>>>> From: garydgregory@gmail.com
>>>>>>> To: user@commons.apache.org
>>>>>>>
>>>>>>> Guilherme,
>>>>>>>
>>>>>>> I have not seen much activity. We are all volunteers here, if you want
>>>>>> the
>>>>>>> project to move forward, feel free to talk on this list, create Jiras,
>>>>>> and
>>>>>>> provide patches.
>>>>>>>
>>>>>>> Gary
>>>>>>> On Jan 22, 2016 8:58 AM, "Guilherme Silveira" <
>>>>>> guilhermecgsspam@gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Hi Folks
>>>>>>>>
>>>>>>>> I am new to FSM and new to SCXML. On the other hand, I am expert in
>>>>>>>> Simulink, expert in Java and expert in model based systems engineering.
>>>>>>>>
>>>>>>>> I am currently evaluating SCXML and I would like a*honest, non biased
>>>>>>>> opinion *on the status of SCXML project.
>>>>>>>>
>>>>>>>> What I would like to assert if this project has a future, the number of
>>>>>>>> developers, if the SCXML specification will ever reach a stable
>>>>>>>> status....and so on
>>>>>>>>
>>>>>>>> So far, I have noticed few integrations with proprietary softwares....
>>>>>>>> Simulink Stateflow does not export to SCXML, neither does IBM Rhapsody.
>>>>>>>>
>>>>>>>> How difficult would it be to create custom tool for these
>>>>>> integrations? And
>>>>>>>> most important, is it REALLY possible to implement in Java all the
>>>>>>>> functionalities of Simulink Stateflow, without any drawback, with a
>>>>>>>> friendly user experience and a steep learning curve?
>>>>>>>>
>>>>>>>> ps: I am not from telecom industry
>>>>>>>>
>>>>>>
>>>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
>>> For additional commands, e-mail: user-help@commons.apache.org
>>>
>>
>>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
> For additional commands, e-mail: user-help@commons.apache.org
>
Re: SCXML project
Posted by Ate Douma <at...@douma.nu>.
Hi Martin,
I've disabled JDK 8 javadoc doclint which should 'fix' your below problem.
BTW: can you please use properly wrapped/formatted plain text for your email?
Like your previous message, content below is pretty much unreadable ...
Ate
On 2016-01-28 14:32, Martin Gainty wrote:
> Hi Atecurrently testing what happens when log4j.properties or log4j.xml is missing (cured by inserting a working log4j.properties into scxml classpath)
> I am currently experiencing this failure:
> Javadoc failure with:
>
> Caused by: org.apache.maven.plugin.MojoExecutionException: Error generating maven-javadoc-plugin:2.10.3:javadoc:Exit code: 1 - \scxml\src\main\java\org\apache\commons\scxml2\SCInstanceObjectInputStream.java:80: error: unexpected end tag: </p> * </p>
> Here is the code:
> /** * Set custom class resolver callback, or null when no longer needed. * <p> * Typically usage: * <pre><code> * private void readObject(ObjectInputStream in) throws IOException,ClassNotFoundException { * ClassResolver currentClassResolver = null; * try { * if (in instanceof SCInstanceObjectInputStream) { * currentClassResolver = ((SCInstanceObjectInputStream)in).setClassResolver(customClassResolver); * } * ... // read Object(s) * } * finally { * if (in instanceof SCInstanceObjectInputStream) { * ((SCInstanceObjectInputStream)in).setClassResolver(currentClassResolver); * } * } * } * </code></pre> * </p> * @see org.apache.commons.scxml2.env.groovy.GroovyContext#readObject(ObjectInputStream) * @param classResolver custom class resolver */ public ClassResolver setClassResolver(ClassResolver classResolver) {
ClassResolver old = this.classResolver; this.classResolver = classResolver; return old; }
> fubars javadoc and fails the build..for now i can comment out the <p> and </p> inside comments to bypass
>
> Suggestions are welcomethanksMartin
> ______________________________________________
>
>
>
>> Subject: Re: SCXML project
>> To: user@commons.apache.org
>> From: ate@douma.nu
>> Date: Wed, 27 Jan 2016 22:10:50 +0100
>>
>> On 2016-01-26 22:36, Martin Gainty wrote:
>>>
>>> mvn package doesnt package (testcase fails) currently
>>> <testcase name="testSCXMLExecutorTransitions02Sample" classname="org.apache.commons.scxml2.SCXMLExecutorTest" time="0.03">
>>> <error type="java.lang.NullPointerException:">
>>> java.lang.NullPointerException: null at
>>> org.apache.commons.logging.impl.SLF4JLog.isDebugEnabled(SLF4JLog.java:49) at
>>> org.apache.commons.scxml2.env.SimpleContext.setLocal(SimpleContext.java:178) at
>>> org.apache.commons.scxml2.SCXMLExecutionContext.initializeIOProcessors(SCXMLExecutionContext.java:358) at
>>> org.apache.commons.scxml2.SCXMLExecutionContext.attachInstance(SCXMLExecutionContext.java:397) at
>>> org.apache.commons.scxml2.SCXMLExecutor.attachInstance(SCXMLExecutor.java:398) at
>>> org.apache.commons.scxml2.SCXMLTestHelper.testInstanceSerializability(SCXMLTestHelper.java:258) at
>>> org.apache.commons.scxml2.SCXMLExecutorTest.testSCXMLExecutorTransitions02Sample(SCXMLExecutorTest.java:139)
>>>
>>> correct this small bug lurking in org.apache.commons.scxml2.env.SimpleContext.java
>>>
>>> /**
>>> * Assigns a new value to an existing variable or creates a new one.
>>> * The method allows to shaddow a variable of the same name up the
>>> * Context chain.
>>> *
>>> * @param name The variable name
>>> * @param value The variable value
>>> * @see org.apache.commons.scxml2.Context#setLocal(String, Object)
>>> * as someone forgot to initialize log toss a System.out.println
>>> */
>>> public void setLocal(final String name, final Object value) {
>>> getVars().put(name, value);
>>> try {
>>> if (log.isDebugEnabled()) {
>>> log.debug(name + " = " + String.valueOf(value));
>>> }
>>> }
>>> catch(NullPointerException npe) {
>>> System.out.println("SimpleContext::setLocal log.isDebugEnabled() where log="+log+" name="+name+" throws NPE");
>>> }
>>> }
>>>
>>> *Obrigado Guilherme*
>>> Martín
>>
>> AFAICT the above NPE only can occur when configuring an invalid/wrong logging
>> class (like in the pom.xml for the maven-surefire-plugin) and/or through
>> explicitly set the the Log instance to null in SimpleContext.java.
>>
>> When using a clean checkout/clone of the current SCXML git repository (master)
>> this definitely is not the case, and mvn package works just fine.
>>
>> So possibly you have local modifications, either to the pom.xml logging
>> configuration or otherwise causing this exception?
>>
>> Regards, Ate
>>
>>>
>>>> Date: Mon, 25 Jan 2016 23:42:01 -0200
>>>> Subject: Re: SCXML project
>>>> From: guilhermecgsspam@gmail.com
>>>> To: user@commons.apache.org
>>>>
>>>> Ok Folks,
>>>>
>>>>
>>>> I will evaluate SCXML.
>>>>
>>>> BTW, I found these paper and it sounds interesting:
>>>>
>>>> http://cdn.intechopen.com/pdfs-wm/46457.pdf
>>>>
>>>> It looks like it exports Stateflow to SCXML
>>>
>>> MG>will Stateflow support Harel FSM?
>>> MG>Please confirmMG>Obrigado!
>>>>
>>>> On Sun, Jan 24, 2016 at 10:32 AM, Martin Gainty <mg...@hotmail.com> wrote:
>>>>
>>>>> +1
>>>>> Thanks Gary!
>>>>> Martin Gainty
>>>>> ______________________________________________
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> Date: Sat, 23 Jan 2016 14:07:08 -0800
>>>>>> Subject: Re: SCXML project
>>>>>> From: garydgregory@gmail.com
>>>>>> To: user@commons.apache.org
>>>>>>
>>>>>> Guilherme,
>>>>>>
>>>>>> I have not seen much activity. We are all volunteers here, if you want
>>>>> the
>>>>>> project to move forward, feel free to talk on this list, create Jiras,
>>>>> and
>>>>>> provide patches.
>>>>>>
>>>>>> Gary
>>>>>> On Jan 22, 2016 8:58 AM, "Guilherme Silveira" <
>>>>> guilhermecgsspam@gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Hi Folks
>>>>>>>
>>>>>>> I am new to FSM and new to SCXML. On the other hand, I am expert in
>>>>>>> Simulink, expert in Java and expert in model based systems engineering.
>>>>>>>
>>>>>>> I am currently evaluating SCXML and I would like a*honest, non biased
>>>>>>> opinion *on the status of SCXML project.
>>>>>>>
>>>>>>> What I would like to assert if this project has a future, the number of
>>>>>>> developers, if the SCXML specification will ever reach a stable
>>>>>>> status....and so on
>>>>>>>
>>>>>>> So far, I have noticed few integrations with proprietary softwares....
>>>>>>> Simulink Stateflow does not export to SCXML, neither does IBM Rhapsody.
>>>>>>>
>>>>>>> How difficult would it be to create custom tool for these
>>>>> integrations? And
>>>>>>> most important, is it REALLY possible to implement in Java all the
>>>>>>> functionalities of Simulink Stateflow, without any drawback, with a
>>>>>>> friendly user experience and a steep learning curve?
>>>>>>>
>>>>>>> ps: I am not from telecom industry
>>>>>>>
>>>>>
>>>>>
>>>
>>>
>>>
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
>> For additional commands, e-mail: user-help@commons.apache.org
>>
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
For additional commands, e-mail: user-help@commons.apache.org
RE: SCXML project
Posted by Martin Gainty <mg...@hotmail.com>.
Hi Atecurrently testing what happens when log4j.properties or log4j.xml is missing (cured by inserting a working log4j.properties into scxml classpath)
I am currently experiencing this failure:
Javadoc failure with:
Caused by: org.apache.maven.plugin.MojoExecutionException: Error generating maven-javadoc-plugin:2.10.3:javadoc:Exit code: 1 - \scxml\src\main\java\org\apache\commons\scxml2\SCInstanceObjectInputStream.java:80: error: unexpected end tag: </p> * </p>
Here is the code:
/** * Set custom class resolver callback, or null when no longer needed. * <p> * Typically usage: * <pre><code> * private void readObject(ObjectInputStream in) throws IOException,ClassNotFoundException { * ClassResolver currentClassResolver = null; * try { * if (in instanceof SCInstanceObjectInputStream) { * currentClassResolver = ((SCInstanceObjectInputStream)in).setClassResolver(customClassResolver); * } * ... // read Object(s) * } * finally { * if (in instanceof SCInstanceObjectInputStream) { * ((SCInstanceObjectInputStream)in).setClassResolver(currentClassResolver); * } * } * } * </code></pre> * </p> * @see org.apache.commons.scxml2.env.groovy.GroovyContext#readObject(ObjectInputStream) * @param classResolver custom class resolver */ public ClassResolver setClassResolver(ClassResolver classResolver) { ClassResolver old = this.classResolver; this.classResolver = classResolver; return old; }
fubars javadoc and fails the build..for now i can comment out the <p> and </p> inside comments to bypass
Suggestions are welcomethanksMartin
______________________________________________
> Subject: Re: SCXML project
> To: user@commons.apache.org
> From: ate@douma.nu
> Date: Wed, 27 Jan 2016 22:10:50 +0100
>
> On 2016-01-26 22:36, Martin Gainty wrote:
> >
> > mvn package doesnt package (testcase fails) currently
> > <testcase name="testSCXMLExecutorTransitions02Sample" classname="org.apache.commons.scxml2.SCXMLExecutorTest" time="0.03">
> > <error type="java.lang.NullPointerException:">
> > java.lang.NullPointerException: null at
> > org.apache.commons.logging.impl.SLF4JLog.isDebugEnabled(SLF4JLog.java:49) at
> > org.apache.commons.scxml2.env.SimpleContext.setLocal(SimpleContext.java:178) at
> > org.apache.commons.scxml2.SCXMLExecutionContext.initializeIOProcessors(SCXMLExecutionContext.java:358) at
> > org.apache.commons.scxml2.SCXMLExecutionContext.attachInstance(SCXMLExecutionContext.java:397) at
> > org.apache.commons.scxml2.SCXMLExecutor.attachInstance(SCXMLExecutor.java:398) at
> > org.apache.commons.scxml2.SCXMLTestHelper.testInstanceSerializability(SCXMLTestHelper.java:258) at
> > org.apache.commons.scxml2.SCXMLExecutorTest.testSCXMLExecutorTransitions02Sample(SCXMLExecutorTest.java:139)
> >
> > correct this small bug lurking in org.apache.commons.scxml2.env.SimpleContext.java
> >
> > /**
> > * Assigns a new value to an existing variable or creates a new one.
> > * The method allows to shaddow a variable of the same name up the
> > * Context chain.
> > *
> > * @param name The variable name
> > * @param value The variable value
> > * @see org.apache.commons.scxml2.Context#setLocal(String, Object)
> > * as someone forgot to initialize log toss a System.out.println
> > */
> > public void setLocal(final String name, final Object value) {
> > getVars().put(name, value);
> > try {
> > if (log.isDebugEnabled()) {
> > log.debug(name + " = " + String.valueOf(value));
> > }
> > }
> > catch(NullPointerException npe) {
> > System.out.println("SimpleContext::setLocal log.isDebugEnabled() where log="+log+" name="+name+" throws NPE");
> > }
> > }
> >
> > *Obrigado Guilherme*
> > Martín
>
> AFAICT the above NPE only can occur when configuring an invalid/wrong logging
> class (like in the pom.xml for the maven-surefire-plugin) and/or through
> explicitly set the the Log instance to null in SimpleContext.java.
>
> When using a clean checkout/clone of the current SCXML git repository (master)
> this definitely is not the case, and mvn package works just fine.
>
> So possibly you have local modifications, either to the pom.xml logging
> configuration or otherwise causing this exception?
>
> Regards, Ate
>
> >
> >> Date: Mon, 25 Jan 2016 23:42:01 -0200
> >> Subject: Re: SCXML project
> >> From: guilhermecgsspam@gmail.com
> >> To: user@commons.apache.org
> >>
> >> Ok Folks,
> >>
> >>
> >> I will evaluate SCXML.
> >>
> >> BTW, I found these paper and it sounds interesting:
> >>
> >> http://cdn.intechopen.com/pdfs-wm/46457.pdf
> >>
> >> It looks like it exports Stateflow to SCXML
> >
> > MG>will Stateflow support Harel FSM?
> > MG>Please confirmMG>Obrigado!
> >>
> >> On Sun, Jan 24, 2016 at 10:32 AM, Martin Gainty <mg...@hotmail.com> wrote:
> >>
> >>> +1
> >>> Thanks Gary!
> >>> Martin Gainty
> >>> ______________________________________________
> >>>
> >>>
> >>>
> >>>
> >>>> Date: Sat, 23 Jan 2016 14:07:08 -0800
> >>>> Subject: Re: SCXML project
> >>>> From: garydgregory@gmail.com
> >>>> To: user@commons.apache.org
> >>>>
> >>>> Guilherme,
> >>>>
> >>>> I have not seen much activity. We are all volunteers here, if you want
> >>> the
> >>>> project to move forward, feel free to talk on this list, create Jiras,
> >>> and
> >>>> provide patches.
> >>>>
> >>>> Gary
> >>>> On Jan 22, 2016 8:58 AM, "Guilherme Silveira" <
> >>> guilhermecgsspam@gmail.com>
> >>>> wrote:
> >>>>
> >>>>> Hi Folks
> >>>>>
> >>>>> I am new to FSM and new to SCXML. On the other hand, I am expert in
> >>>>> Simulink, expert in Java and expert in model based systems engineering.
> >>>>>
> >>>>> I am currently evaluating SCXML and I would like a*honest, non biased
> >>>>> opinion *on the status of SCXML project.
> >>>>>
> >>>>> What I would like to assert if this project has a future, the number of
> >>>>> developers, if the SCXML specification will ever reach a stable
> >>>>> status....and so on
> >>>>>
> >>>>> So far, I have noticed few integrations with proprietary softwares....
> >>>>> Simulink Stateflow does not export to SCXML, neither does IBM Rhapsody.
> >>>>>
> >>>>> How difficult would it be to create custom tool for these
> >>> integrations? And
> >>>>> most important, is it REALLY possible to implement in Java all the
> >>>>> functionalities of Simulink Stateflow, without any drawback, with a
> >>>>> friendly user experience and a steep learning curve?
> >>>>>
> >>>>> ps: I am not from telecom industry
> >>>>>
> >>>
> >>>
> >
> >
> >
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
> For additional commands, e-mail: user-help@commons.apache.org
>
Re: SCXML project
Posted by Ate Douma <at...@douma.nu>.
On 2016-01-26 22:36, Martin Gainty wrote:
>
> mvn package doesnt package (testcase fails) currently
> <testcase name="testSCXMLExecutorTransitions02Sample" classname="org.apache.commons.scxml2.SCXMLExecutorTest" time="0.03">
> <error type="java.lang.NullPointerException:">
> java.lang.NullPointerException: null at
> org.apache.commons.logging.impl.SLF4JLog.isDebugEnabled(SLF4JLog.java:49) at
> org.apache.commons.scxml2.env.SimpleContext.setLocal(SimpleContext.java:178) at
> org.apache.commons.scxml2.SCXMLExecutionContext.initializeIOProcessors(SCXMLExecutionContext.java:358) at
> org.apache.commons.scxml2.SCXMLExecutionContext.attachInstance(SCXMLExecutionContext.java:397) at
> org.apache.commons.scxml2.SCXMLExecutor.attachInstance(SCXMLExecutor.java:398) at
> org.apache.commons.scxml2.SCXMLTestHelper.testInstanceSerializability(SCXMLTestHelper.java:258) at
> org.apache.commons.scxml2.SCXMLExecutorTest.testSCXMLExecutorTransitions02Sample(SCXMLExecutorTest.java:139)
>
> correct this small bug lurking in org.apache.commons.scxml2.env.SimpleContext.java
>
> /**
> * Assigns a new value to an existing variable or creates a new one.
> * The method allows to shaddow a variable of the same name up the
> * Context chain.
> *
> * @param name The variable name
> * @param value The variable value
> * @see org.apache.commons.scxml2.Context#setLocal(String, Object)
> * as someone forgot to initialize log toss a System.out.println
> */
> public void setLocal(final String name, final Object value) {
> getVars().put(name, value);
> try {
> if (log.isDebugEnabled()) {
> log.debug(name + " = " + String.valueOf(value));
> }
> }
> catch(NullPointerException npe) {
> System.out.println("SimpleContext::setLocal log.isDebugEnabled() where log="+log+" name="+name+" throws NPE");
> }
> }
>
> *Obrigado Guilherme*
> Martín
AFAICT the above NPE only can occur when configuring an invalid/wrong logging
class (like in the pom.xml for the maven-surefire-plugin) and/or through
explicitly set the the Log instance to null in SimpleContext.java.
When using a clean checkout/clone of the current SCXML git repository (master)
this definitely is not the case, and mvn package works just fine.
So possibly you have local modifications, either to the pom.xml logging
configuration or otherwise causing this exception?
Regards, Ate
>
>> Date: Mon, 25 Jan 2016 23:42:01 -0200
>> Subject: Re: SCXML project
>> From: guilhermecgsspam@gmail.com
>> To: user@commons.apache.org
>>
>> Ok Folks,
>>
>>
>> I will evaluate SCXML.
>>
>> BTW, I found these paper and it sounds interesting:
>>
>> http://cdn.intechopen.com/pdfs-wm/46457.pdf
>>
>> It looks like it exports Stateflow to SCXML
>
> MG>will Stateflow support Harel FSM?
> MG>Please confirmMG>Obrigado!
>>
>> On Sun, Jan 24, 2016 at 10:32 AM, Martin Gainty <mg...@hotmail.com> wrote:
>>
>>> +1
>>> Thanks Gary!
>>> Martin Gainty
>>> ______________________________________________
>>>
>>>
>>>
>>>
>>>> Date: Sat, 23 Jan 2016 14:07:08 -0800
>>>> Subject: Re: SCXML project
>>>> From: garydgregory@gmail.com
>>>> To: user@commons.apache.org
>>>>
>>>> Guilherme,
>>>>
>>>> I have not seen much activity. We are all volunteers here, if you want
>>> the
>>>> project to move forward, feel free to talk on this list, create Jiras,
>>> and
>>>> provide patches.
>>>>
>>>> Gary
>>>> On Jan 22, 2016 8:58 AM, "Guilherme Silveira" <
>>> guilhermecgsspam@gmail.com>
>>>> wrote:
>>>>
>>>>> Hi Folks
>>>>>
>>>>> I am new to FSM and new to SCXML. On the other hand, I am expert in
>>>>> Simulink, expert in Java and expert in model based systems engineering.
>>>>>
>>>>> I am currently evaluating SCXML and I would like a*honest, non biased
>>>>> opinion *on the status of SCXML project.
>>>>>
>>>>> What I would like to assert if this project has a future, the number of
>>>>> developers, if the SCXML specification will ever reach a stable
>>>>> status....and so on
>>>>>
>>>>> So far, I have noticed few integrations with proprietary softwares....
>>>>> Simulink Stateflow does not export to SCXML, neither does IBM Rhapsody.
>>>>>
>>>>> How difficult would it be to create custom tool for these
>>> integrations? And
>>>>> most important, is it REALLY possible to implement in Java all the
>>>>> functionalities of Simulink Stateflow, without any drawback, with a
>>>>> friendly user experience and a steep learning curve?
>>>>>
>>>>> ps: I am not from telecom industry
>>>>>
>>>
>>>
>
>
>
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RE: SCXML project
Posted by Martin Gainty <mg...@hotmail.com>.
mvn package doesnt package (testcase fails) currently <testcase name="testSCXMLExecutorTransitions02Sample" classname="org.apache.commons.scxml2.SCXMLExecutorTest" time="0.03"> <error type="java.lang.NullPointerException:">java.lang.NullPointerException: null at org.apache.commons.logging.impl.SLF4JLog.isDebugEnabled(SLF4JLog.java:49) at org.apache.commons.scxml2.env.SimpleContext.setLocal(SimpleContext.java:178) at org.apache.commons.scxml2.SCXMLExecutionContext.initializeIOProcessors(SCXMLExecutionContext.java:358) at org.apache.commons.scxml2.SCXMLExecutionContext.attachInstance(SCXMLExecutionContext.java:397) at org.apache.commons.scxml2.SCXMLExecutor.attachInstance(SCXMLExecutor.java:398) at org.apache.commons.scxml2.SCXMLTestHelper.testInstanceSerializability(SCXMLTestHelper.java:258) at org.apache.commons.scxml2.SCXMLExecutorTest.testSCXMLExecutorTransitions02Sample(SCXMLExecutorTest.java:139)
correct this small bug lurking in org.apache.commons.scxml2.env.SimpleContext.java
/** * Assigns a new value to an existing variable or creates a new one. * The method allows to shaddow a variable of the same name up the * Context chain. * * @param name The variable name * @param value The variable value * @see org.apache.commons.scxml2.Context#setLocal(String, Object) * as someone forgot to initialize log toss a System.out.println */ public void setLocal(final String name, final Object value) { getVars().put(name, value); try { if (log.isDebugEnabled()) { log.debug(name + " = " + String.valueOf(value)); } } catch(NullPointerException npe) { System.out.println("SimpleContext::setLocal log.isDebugEnabled() where log="+log+" name="+name+" throws NPE"); } }
*Obrigado Guilherme*
Martín
> Date: Mon, 25 Jan 2016 23:42:01 -0200
> Subject: Re: SCXML project
> From: guilhermecgsspam@gmail.com
> To: user@commons.apache.org
>
> Ok Folks,
>
>
> I will evaluate SCXML.
>
> BTW, I found these paper and it sounds interesting:
>
> http://cdn.intechopen.com/pdfs-wm/46457.pdf
>
> It looks like it exports Stateflow to SCXML
MG>will Stateflow support Harel FSM?
MG>Please confirmMG>Obrigado!
>
> On Sun, Jan 24, 2016 at 10:32 AM, Martin Gainty <mg...@hotmail.com> wrote:
>
> > +1
> > Thanks Gary!
> > Martin Gainty
> > ______________________________________________
> >
> >
> >
> >
> > > Date: Sat, 23 Jan 2016 14:07:08 -0800
> > > Subject: Re: SCXML project
> > > From: garydgregory@gmail.com
> > > To: user@commons.apache.org
> > >
> > > Guilherme,
> > >
> > > I have not seen much activity. We are all volunteers here, if you want
> > the
> > > project to move forward, feel free to talk on this list, create Jiras,
> > and
> > > provide patches.
> > >
> > > Gary
> > > On Jan 22, 2016 8:58 AM, "Guilherme Silveira" <
> > guilhermecgsspam@gmail.com>
> > > wrote:
> > >
> > > > Hi Folks
> > > >
> > > > I am new to FSM and new to SCXML. On the other hand, I am expert in
> > > > Simulink, expert in Java and expert in model based systems engineering.
> > > >
> > > > I am currently evaluating SCXML and I would like a*honest, non biased
> > > > opinion *on the status of SCXML project.
> > > >
> > > > What I would like to assert if this project has a future, the number of
> > > > developers, if the SCXML specification will ever reach a stable
> > > > status....and so on
> > > >
> > > > So far, I have noticed few integrations with proprietary softwares....
> > > > Simulink Stateflow does not export to SCXML, neither does IBM Rhapsody.
> > > >
> > > > How difficult would it be to create custom tool for these
> > integrations? And
> > > > most important, is it REALLY possible to implement in Java all the
> > > > functionalities of Simulink Stateflow, without any drawback, with a
> > > > friendly user experience and a steep learning curve?
> > > >
> > > > ps: I am not from telecom industry
> > > >
> >
> >
Re: SCXML project
Posted by Guilherme Silveira <gu...@gmail.com>.
Ok Folks,
I will evaluate SCXML.
BTW, I found these paper and it sounds interesting:
http://cdn.intechopen.com/pdfs-wm/46457.pdf
It looks like it exports Stateflow to SCXML
On Sun, Jan 24, 2016 at 10:32 AM, Martin Gainty <mg...@hotmail.com> wrote:
> +1
> Thanks Gary!
> Martin Gainty
> ______________________________________________
>
>
>
>
> > Date: Sat, 23 Jan 2016 14:07:08 -0800
> > Subject: Re: SCXML project
> > From: garydgregory@gmail.com
> > To: user@commons.apache.org
> >
> > Guilherme,
> >
> > I have not seen much activity. We are all volunteers here, if you want
> the
> > project to move forward, feel free to talk on this list, create Jiras,
> and
> > provide patches.
> >
> > Gary
> > On Jan 22, 2016 8:58 AM, "Guilherme Silveira" <
> guilhermecgsspam@gmail.com>
> > wrote:
> >
> > > Hi Folks
> > >
> > > I am new to FSM and new to SCXML. On the other hand, I am expert in
> > > Simulink, expert in Java and expert in model based systems engineering.
> > >
> > > I am currently evaluating SCXML and I would like a*honest, non biased
> > > opinion *on the status of SCXML project.
> > >
> > > What I would like to assert if this project has a future, the number of
> > > developers, if the SCXML specification will ever reach a stable
> > > status....and so on
> > >
> > > So far, I have noticed few integrations with proprietary softwares....
> > > Simulink Stateflow does not export to SCXML, neither does IBM Rhapsody.
> > >
> > > How difficult would it be to create custom tool for these
> integrations? And
> > > most important, is it REALLY possible to implement in Java all the
> > > functionalities of Simulink Stateflow, without any drawback, with a
> > > friendly user experience and a steep learning curve?
> > >
> > > ps: I am not from telecom industry
> > >
>
>
RE: SCXML project
Posted by Martin Gainty <mg...@hotmail.com>.
+1
Thanks Gary!
Martin Gainty
______________________________________________
> Date: Sat, 23 Jan 2016 14:07:08 -0800
> Subject: Re: SCXML project
> From: garydgregory@gmail.com
> To: user@commons.apache.org
>
> Guilherme,
>
> I have not seen much activity. We are all volunteers here, if you want the
> project to move forward, feel free to talk on this list, create Jiras, and
> provide patches.
>
> Gary
> On Jan 22, 2016 8:58 AM, "Guilherme Silveira" <gu...@gmail.com>
> wrote:
>
> > Hi Folks
> >
> > I am new to FSM and new to SCXML. On the other hand, I am expert in
> > Simulink, expert in Java and expert in model based systems engineering.
> >
> > I am currently evaluating SCXML and I would like a*honest, non biased
> > opinion *on the status of SCXML project.
> >
> > What I would like to assert if this project has a future, the number of
> > developers, if the SCXML specification will ever reach a stable
> > status....and so on
> >
> > So far, I have noticed few integrations with proprietary softwares....
> > Simulink Stateflow does not export to SCXML, neither does IBM Rhapsody.
> >
> > How difficult would it be to create custom tool for these integrations? And
> > most important, is it REALLY possible to implement in Java all the
> > functionalities of Simulink Stateflow, without any drawback, with a
> > friendly user experience and a steep learning curve?
> >
> > ps: I am not from telecom industry
> >
Re: SCXML project
Posted by Gary Gregory <ga...@gmail.com>.
Guilherme,
I have not seen much activity. We are all volunteers here, if you want the
project to move forward, feel free to talk on this list, create Jiras, and
provide patches.
Gary
On Jan 22, 2016 8:58 AM, "Guilherme Silveira" <gu...@gmail.com>
wrote:
> Hi Folks
>
> I am new to FSM and new to SCXML. On the other hand, I am expert in
> Simulink, expert in Java and expert in model based systems engineering.
>
> I am currently evaluating SCXML and I would like a*honest, non biased
> opinion *on the status of SCXML project.
>
> What I would like to assert if this project has a future, the number of
> developers, if the SCXML specification will ever reach a stable
> status....and so on
>
> So far, I have noticed few integrations with proprietary softwares....
> Simulink Stateflow does not export to SCXML, neither does IBM Rhapsody.
>
> How difficult would it be to create custom tool for these integrations? And
> most important, is it REALLY possible to implement in Java all the
> functionalities of Simulink Stateflow, without any drawback, with a
> friendly user experience and a steep learning curve?
>
> ps: I am not from telecom industry
>