[Openflow-dev] Re: Openflow-dev digest, Vol 1 #75 - 6 msgs

SourceForge Headquarters 1320 Columbia Street Suite 310 San Diego, CA 92101 +1 (858) 422-6466

unsubscribe, please

At 12:21 26-02-2002 -0800, you wrote:
>Send Openflow-dev mailing list submissions to
>         ope...@li...
>
>To subscribe or unsubscribe via the World Wide Web, visit
>         https://lists.sourceforge.net/lists/listinfo/openflow-dev
>or, via email, send a message with subject or body 'help' to
>         ope...@li...
>
>You can reach the person managing the list at
>         ope...@li...
>
>When replying, please edit your Subject line so it is more specific
>than "Re: Contents of Openflow-dev digest..."
>
>
>Today's Topics:
>
>    1. Quick start (Juan David =3D?ISO-8859-1?Q?Ib=3DE1=3DF1ez?=3D Palomar)
>    2. completeWorkitem (Peter Edwards)
>    3. Re: Quick start (=3D?ISO-8859-1?Q?Juli=3DE1n_Mu=3DF1oz?=3D)
>    4. Re: Quick start (Juan David =3D?ISO-8859-1?Q?Ib=3DE1=3DF1ez?=3D=
 Palomar)
>    5. Re: Quick start (=3D?ISO-8859-1?Q?Juli=3DE1n_Mu=3DF1oz?=3D)
>    6. OpenFlow 0.7 simple demo available (Daniele Tarini)
>
>--__--__--
>
>Message: 1
>Date: Tue, 26 Feb 2002 15:03:34 +0100
>From: Juan David =3D?ISO-8859-1?Q?Ib=3DE1=3DF1ez?=3D Palomar=
 <jd...@nu...>
>To: ope...@li...
>Subject: [Openflow-dev] Quick start
>
>
>Hi all,
>
>I'm new to this mailing list.
>
>Is there an example that shows how to use OpenFlow?
>
>I'd like to know how looks an application based on OpenFlow.
>
>Perhaps a .zexp, or a Python product, or a step by step explanation
>to set up a very simple application with OpenFlow.
>
>
>The only workflow tool I've used is DCWorkflow. I guess you
>already know it, probably better than me.
>
>In DCWorkflow objects can be in one of the states defined by the
>workflow. The main thing that defines an state is a permission
>mapping, so moving from one state to another means to change the
>permission settings of the object. Does OpenFlow modify the
>permission settings too?
>
>
>Thank you very much,
>
>--
>J. David Ib=E1=F1ez, Nuxeo.com
>Libre Software zealot (http://www.fsf.org)
>
>
>
>
>--__--__--
>
>Message: 2
>From: Peter Edwards <P.E...@er...>
>To: "'ope...@li...'"
>         <ope...@li...>
>Date: Tue, 26 Feb 2002 14:15:37 -0000
>Organization: DERA
>Subject: [Openflow-dev] completeWorkitem
>
>I still can't puzzle out how to automate continuation from a DTML=
 application.
>
>First, attempting to follow Daniele's instruction, I tried
><dtml-call "_['openflow_id'].completeWorkitem(instance_id, workitem_id)">
>directly in the application, but this causes the following Zope error.
>
>(if the application has manual start, this happens when I press 'Start
>application' from the Worklist)
>
>           Error Type: AttributeError
>           Error Value: completeWorkitem
>
>Traceback (innermost last):
>   File D:\Zope\PWETRI~1\lib\python\ZPublisher\Publish.py, line 150, in
>publish_module
>   File D:\Zope\PWETRI~1\lib\python\ZPublisher\Publish.py, line 114, in=20
> publish
>   File D:\Zope\PWETRI~1\lib\python\Zope\__init__.py, line 158, in
>zpublisher_exception_hook
>     (Object: mywf)
>   File D:\Zope\PWETRI~1\lib\python\ZPublisher\Publish.py, line 98, in=
 publish
>   File D:\Zope\PWETRI~1\lib\python\ZPublisher\mapply.py, line 88, in=
 mapply
>     (Object: trivdoc)
>   File D:\Zope\PWETRI~1\lib\python\ZPublisher\Publish.py, line 39, in
>call_object
>     (Object: trivdoc)
>   File D:\Zope\PWETRI~1\lib\python\OFS\DTMLDocument.py, line 127, in=
 __call__
>     (Object: trivdoc)
>   File D:\Zope\PWETRI~1\lib\python\DocumentTemplate\DT_String.py, line=20
> 473, in
>__call__
>     (Object: trivdoc)
>   File D:\Zope\PWETRI~1\lib\python\DocumentTemplate\DT_Util.py, line 159,=
 in
>eval
>     (Object: _['openflow_id'].completeWorkitem(instance_id, workitem_id))
>     (Info: instance_id)
>   File <string>, line 2, in f
>   File D:\Zope\PWETRI~1\lib\python\AccessControl\DTML.py, line 29, in
>guarded_getattr
>     (Object: trivdoc)
>   File D:\Zope\PWETRI~1\lib\python\AccessControl\ZopeGuards.py, line 47,=
 in
>guarded_getattr
>AttributeError: (see above)
>
>
>I then thought this is the wrong time to call completeWorkitem, as it=
 happens
>when rendering the page for the user. The user should select something or
>pressing a button to do it, i.e. making a decision to complete the=
 Workitem.
>
>So I tried creating another document (or a Script may be better), and made=
=20
>the
>first document access that either by <a href=3D(etc)> or <form (etc)>. But=
 I
>couldn't see how to pass in the OpenFlow parameters to that other=20
>document. Is
>this anything like the right idea?
>
>Help please!
>
>Peter
>
>
>
>--__--__--
>
>Message: 3
>Date: Tue, 26 Feb 2002 15:06:57 +0000 (GMT)
>From: =3D?ISO-8859-1?Q?Juli=3DE1n_Mu=3DF1oz?=3D <jm...@so...>
>To: Juan David =3D?ISO-8859-1?Q?Ib=3DE1=3DF1ez?=3D Palomar=
 <jd...@nu...>
>Cc: <ope...@li...>
>Subject: Re: [Openflow-dev] Quick start
>
>Hello (hola)
>
>
> > Is there an example that shows how to use OpenFlow?
>
>No (there was one, but it is for an old version).
>
>
> > I'd like to know how looks an application based on OpenFlow.
>
>Uhmm,
>the better is to install Openflow.
>An application based on Openflow looks like a list of things to do.
>
> > The only workflow tool I've used is DCWorkflow. I guess you
> > already know it, probably better than me.
>
>I don't know it, but I know what is a state based workflow, it is good for
>defining telecomunitacions protocols, where is it clear than an object
>must give responses to external signals, depending of its state. The
>workflow marcs the path of the states. I think it is the way DCWorkflow
>works, isn't it ?
>
> > permission settings of the object. Does OpenFlow modify the
> > permission settings too?
>
>Openflows gives the list of activities for each differente user, and
>limits who can say "I have finished this activity".
>
>
>--=3D20
>
>       __o
>     _ \<_
>    (_)/(_)
>
>Saludos de Juli=3DE1n
>EA4ACL
>-.-
>
>Foro Wireless Madrid
>http://opennetworks.rg3.net
>
>
>
>--__--__--
>
>Message: 4
>Date: Tue, 26 Feb 2002 17:09:44 +0100
>From: Juan David =3D?ISO-8859-1?Q?Ib=3DE1=3DF1ez?=3D Palomar=
 <jd...@nu...>
>To: =3D?ISO-8859-1?Q?Juli=3DE1n=3D20Mu=3DF1oz?=3D <jm...@so...>,
>         openflow-dev <ope...@li...>
>Subject: Re: [Openflow-dev] Quick start
>
>
>Hola, ;-)
>
>
>
>Juli=E1n Mu=F1oz wrote:
>
> >Hello (hola)
> >
> >
> >>Is there an example that shows how to use OpenFlow?
> >>
> >
> >No (there was one, but it is for an old version).
> >
> >
> >>I'd like to know how looks an application based on OpenFlow.
> >>
> >
> >Uhmm,
> >the better is to install Openflow.
> >An application based on Openflow looks like a list of things to do.
> >
>
>I installed it, created a process definition, a transition between the
>two default
>activities, added a process instance, ...
>
>DCWorkflow has the concept of worklists. I think (I'm not a strong
>DCWorkflow
>user) that a worklist is just a list of things to do. An allowed user
>looks at a working
>list and sees the objects that are in a given state, and can change
>their state.
>
>Is something like this the "list of things to do" of Openflow?
>
>
>
> >>The only workflow tool I've used is DCWorkflow. I guess you
> >>already know it, probably better than me.
> >>
> >
> >I don't know it, but I know what is a state based workflow, it is good=
 for
> >defining telecomunitacions protocols, where is it clear than an object
> >must give responses to external signals, depending of its state. The
> >workflow marcs the path of the states. I think it is the way DCWorkflow
> >works, isn't it ?
> >
>
>Yes, I think so. Is OpenFlow different?
>
>
> >>permission settings of the object. Does OpenFlow modify the
> >>permission settings too?
> >>
> >
> >Openflows gives the list of activities for each differente user, and
> >limits who can say "I have finished this activity".
> >
> >
>
>I don't understand well, I'm not familirized with the jargon, what is an
>"activity" for example? Things that are obvious for you are difficult for
>me.
>
>I'm familirized, however, with the Zope's jargon, users, roles,=
 permissions,
>objects, etc..
>
>
>Let's see an example, imagine that I want to add moderation to a weblog.
>The weblog has a Zope meta type named "Article". I would like to have
>this:
>
>   1. An anonymous user posts a new article;
>
>   2. A reviewer sees the new article in his list of articles pending of
>       review;
>
>   3. The reviewer can accept or reject the article.
>
>
>I know how to do this with DCWorkflow. An article is an object that can
>be in two states, "pending" and "public". The "Anonymous" role only has
>the permission "View" if it's in the "public" state. This is a simple way=
 to
>filter the articles that are shown in the weblog, users only show the
>articles
>they're allowed to see.
>
>How to do this with Openflow?
>
>
>Thanks,
>
>--
>J. David Ib=E1=F1ez, Nuxeo.com
>Libre Software zealot (http://www.fsf.org)
>
>
>
>
>--__--__--
>
>Message: 5
>Date: Tue, 26 Feb 2002 16:53:29 +0000 (GMT)
>From: =3D?ISO-8859-1?Q?Juli=3DE1n_Mu=3DF1oz?=3D <jm...@so...>
>Cc: openflow-dev <ope...@li...>
>Subject: Re: [Openflow-dev] Quick start
>
>
> > Let's see an example, imagine that I want to add moderation to a weblog.
> > The weblog has a Zope meta type named "Article". I would like to have
> > this:
> >
> >   1. An anonymous user posts a new article;
> >
> >   2. A reviewer sees the new article in his list of articles pending of
> >       review;
> >
> >   3. The reviewer can accept or reject the article.
> >
> >
> > I know how to do this with DCWorkflow. An article is an object that can
> > be in two states, "pending" and "public". The "Anonymous" role only has
> > the permission "View" if it's in the "public" state. This is a simple=
 way=3D
>  to
> > filter the articles that are shown in the weblog, users only show the
> > articles
> > they're allowed to see.
> >
> > How to do this with Openflow?
>
>
>In Openflow you define the process this way:
>
>1) An anonymous POST an article  =3D3D First activity
>
>2) A reviewer REVIEW the article =3D3D Second activity
>
>
>If the reviewer accepts the acticle there is 3 things to do:
>
>   a) The secretary must phone to my mother, and say "Your soon will arrive
>late tonight, we have an important article".
>   b) The article must me put on the web, automatically
>   c) A remote methods must be called automatically, via xml-rpc, to send
>      a hash of this article to a copyright database, in New York.
>
>
>You see, this this activity bases. Activities =3D3D Actions to do
>
>This can be related to the main object (b), but this can also be a call to
>a method (c), or an action than an human must do (phone to my mother).
>
>It is the classic definition of an algoritm. The diagram process, things
>to do... It is the way you draw something on a paper when you define a
>process.
>
>
>The difference is that the diagram is not related to any object. Generally
>it will, but this is not mandatory.
>
>
>
>--=3D20
>
>       __o
>     _ \<_
>    (_)/(_)
>
>Saludos de Juli=3DE1n
>EA4ACL
>-.-
>
>Foro Wireless Madrid
>http://opennetworks.rg3.net
>
>
>
>--__--__--
>
>Message: 6
>From: Daniele Tarini <d.t...@ic...>
>Organization: icube
>To: Peter Edwards <P.E...@er...>,
>         "'ope...@li...'"=20
> <ope...@li...>
>Subject: [Openflow-dev] OpenFlow 0.7 simple demo available
>Date: Tue, 26 Feb 2002 17:59:41 +0100
>
>On Tuesday 26 February 2002 15:15, Peter Edwards wrote:
> > I still can't puzzle out how to automate continuation from a DTML
> > application.
> >
> > First, attempting to follow Daniele's instruction, I tried
> > <dtml-call "_['openflow_id'].completeWorkitem(instance_id, workitem_id)=
=3D
>">
> > directly in the application, but this causes the following Zope error.
>
>Ok, ok, my fault! =3D3D) I'm sorry.
>
>that should have been:
><dtml-call "_[openflow_id].completeWorkitem(instance_id, workitem_id)">
>
>instead of
><dtml-call "_['openflow_id'].completeWorkitem(instance_id, workitem_id)">
>
>
>
>
>Anyway, since a lot of people seem to ask, I zexp-ed a simple demo for=3D20
>openflow on the Zope pages at http://www.zope.org/Members/vds/
>
>The demo was originally written in italian but I translated it in english=
=3D
>,=3D20
>even thought zope items still have their italian names =3D3D(
>
>This small deme should be useful to know how to call the openflow API and=
=3D
>  how=3D20
>to handle applications linked to activities.
>
>As soon as I can I'll be posting a slide or two as a demo description. Ma=
=3D
>inly=3D20
>it is a issue tracking: it all starts from the submit/index_html where=3D20
>someone (named Alex) submits issues. Other workflow partecipants (Barbara=
=3D
>,=3D20
>Charles, Cherry and Clint) are assigned to activities) and check their=3D20
>worklist callling either worklist/bug or worklist/responsabile
>
>If you are a manager you can see all th above worklists (worklist/bug =3D20
>worklist/responsabile) and submitter (submit/index_html)
>
>If you want to monitor the process remember to sign in in the monitor rol=
=3D
>e in=3D20
>the users_and_roles tab of the workflow.
>
>Suggestions and opinions are welcome,
>
>=3D09Daniele =3D3D)
>
>
>
>--__--__--
>
>_______________________________________________
>Openflow-dev mailing list
>Ope...@li...
>https://lists.sourceforge.net/lists/listinfo/openflow-dev
>
>
>End of Openflow-dev Digest


  Jean-Luc Muller

  Laboratoire de T=E9l=E9communication et T=E9l=E9d=E9tection
  B=E2timent St=E9vin - Place du Levant 2
  B-1348 Louvain-La-Neuve
  Tel    : +32 (0)10 478551
  E-mail : mu...@te...