23 Aug
2010
23 Aug
'10
11 a.m.
Hello,
I'd like to refactor AbstractScriptMacro in order to be able to change
script behavior in the future without fanout violations. Here is the
plan emerged after several discussions with ThomasM:
Introduce a notion of cancelable events. Such events can be canceled by
the receiver (providing an optional reason), the actual canceling is
performed by the sender.
http://dev.xwiki.org/xwiki/bin/view/Design/CancelableEvents
Send a cancelable event ScriptEvaluationStartsEvent in
AbstractScriptMacro just before evaluating the script and a
ScriptEvaluationFinishedEvent right after evaluation has finished (in
finally block).
Add the following 3 listeners to those events (into
rendering.internal.macro.script) and move the corresponding code from
AbstractScriptMacro there:
ScriptClassLoaderHandlerListener
* does class loader manipulations currently performed by
AbstractScriptMacro#getClassLoader & Co
PermissionCheckerListener
* Aborts execution of scripts that need PR if the document is not saved
with PR
* To distinguish velocity and PR scripts, introduce a new interface
PrivilegedScriptMacro extends ScriptMacro and let
AbstractJSR223ScriptMacro implement it
NestedScriptMacroValidatorListener
* Replaces NestedScriptMacroValidator (ScriptMacroValidator component
is removed completely)
The refactoring will remove the following methods (breaks API):
AbstractJSR223ScriptMacro:
* protected boolean canExecuteScript()
* public List execute(JSR223ScriptMacroParameters, String,
MacroTransformationContext)
AbstractScriptMacro:
* protected boolean canHaveJarsParameters()
* protected ClassLoader getClassLoader(String, ClassLoader)
WDYT?
Alex
23 Aug
23 Aug
11:26 a.m.
New subject: [xwiki-devs] [proposal] Cancelable events and refactoring script macros
On Mon, Aug 23, 2010 at 11:00, Alex Busenius <alex.busenius(a)xwiki.com> wrote:
Hello,
I'd like to refactor AbstractScriptMacro in order to be able to change
script behavior in the future without fanout violations. Here is the
plan emerged after several discussions with ThomasM:
Introduce a notion of cancelable events. Such events can be canceled by
the receiver (providing an optional reason), the actual canceling is
performed by the sender.
http://dev.xwiki.org/xwiki/bin/view/Design/CancelableEvents
Send a cancelable event ScriptEvaluationStartsEvent in
AbstractScriptMacro just before evaluating the script and a
ScriptEvaluationFinishedEvent right after evaluation has finished (in
finally block).
Add the following 3 listeners to those events (into
rendering.internal.macro.script) and move the corresponding code from
AbstractScriptMacro there:
ScriptClassLoaderHandlerListener
* does class loader manipulations currently performed by
AbstractScriptMacro#getClassLoader & Co
Lets say +0,5 because it makes more difficult to understand the
behavior of class loaders in script macros.
PermissionCheckerListener
* Aborts execution of scripts that need PR if the document is not saved
with PR
+1
* To distinguish velocity and PR scripts, introduce a
new interface
PrivilegedScriptMacro extends ScriptMacro and let
AbstractJSR223ScriptMacro implement it
NestedScriptMacroValidatorListener
* Replaces NestedScriptMacroValidator (ScriptMacroValidator component
is removed completely)
+1
The refactoring will remove the following methods (breaks API):
AbstractJSR223ScriptMacro:
* protected boolean canExecuteScript()
* public List execute(JSR223ScriptMacroParameters,
String,
MacroTransformationContext)
Removing this method does not break anything since it's just an
override of AbstractScriptMacro#execute. Probably a clirr check bug or
something.
AbstractScriptMacro:
* protected boolean canHaveJarsParameters()
* protected ClassLoader getClassLoader(String, ClassLoader)
WDYT?
+1, cancelable events is a very useful feature that we will be able
to use in many places: validate document before saving it, etc.
Alex
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--
Thomas Mortagne
12:58 p.m.
New subject: [xwiki-devs] [proposal] Cancelable events and refactoring script macros
On 08/23/2010 11:00 AM, Alex Busenius wrote:
Hello,
I'd like to refactor AbstractScriptMacro in order to be able to change
script behavior in the future without fanout violations. Here is the
plan emerged after several discussions with ThomasM:
Introduce a notion of cancelable events. Such events can be canceled by
the receiver (providing an optional reason), the actual canceling is
performed by the sender.
http://dev.xwiki.org/xwiki/bin/view/Design/CancelableEvents
Send a cancelable event ScriptEvaluationStartsEvent in
AbstractScriptMacro just before evaluating the script and a
ScriptEvaluationFinishedEvent right after evaluation has finished (in
finally block).
Add the following 3 listeners to those events (into
rendering.internal.macro.script) and move the corresponding code from
AbstractScriptMacro there:
ScriptClassLoaderHandlerListener
* does class loader manipulations currently performed by
AbstractScriptMacro#getClassLoader& Co
PermissionCheckerListener
* Aborts execution of scripts that need PR if the document is not saved
with PR
* To distinguish velocity and PR scripts, introduce a new interface
PrivilegedScriptMacro extends ScriptMacro and let
AbstractJSR223ScriptMacro implement it
NestedScriptMacroValidatorListener
* Replaces NestedScriptMacroValidator (ScriptMacroValidator component
is removed completely)
The refactoring will remove the following methods (breaks API):
AbstractJSR223ScriptMacro:
* protected boolean canExecuteScript()
* public List execute(JSR223ScriptMacroParameters, String,
MacroTransformationContext)
AbstractScriptMacro:
* protected boolean canHaveJarsParameters()
* protected ClassLoader getClassLoader(String, ClassLoader)
WDYT?
+1 for all.
--
Sergiu Dumitriu
http://purl.org/net/sergiu/
1:34 p.m.
New subject: [xwiki-devs] [proposal] Cancelable events and refactoring script macros
+1
Jerome.
----- Original Message -----
From: "Alex Busenius" <alex.busenius(a)xwiki.com>
To: "XWiki Developers" <devs(a)xwiki.org>
Sent: Monday, August 23, 2010 11:00:16 AM GMT +01:00 Amsterdam / Berlin / Bern / Rome /
Stockholm / Vienna
Subject: [xwiki-devs] [proposal] Cancelable events and refactoring script macros
Hello,
I'd like to refactor AbstractScriptMacro in order to be able to change
script behavior in the future without fanout violations. Here is the
plan emerged after several discussions with ThomasM:
Introduce a notion of cancelable events. Such events can be canceled by
the receiver (providing an optional reason), the actual canceling is
performed by the sender.
http://dev.xwiki.org/xwiki/bin/view/Design/CancelableEvents
Send a cancelable event ScriptEvaluationStartsEvent in
AbstractScriptMacro just before evaluating the script and a
ScriptEvaluationFinishedEvent right after evaluation has finished (in
finally block).
Add the following 3 listeners to those events (into
rendering.internal.macro.script) and move the corresponding code from
AbstractScriptMacro there:
ScriptClassLoaderHandlerListener
* does class loader manipulations currently performed by
AbstractScriptMacro#getClassLoader & Co
PermissionCheckerListener
* Aborts execution of scripts that need PR if the document is not saved
with PR
* To distinguish velocity and PR scripts, introduce a new interface
PrivilegedScriptMacro extends ScriptMacro and let
AbstractJSR223ScriptMacro implement it
NestedScriptMacroValidatorListener
* Replaces NestedScriptMacroValidator (ScriptMacroValidator component
is removed completely)
The refactoring will remove the following methods (breaks API):
AbstractJSR223ScriptMacro:
* protected boolean canExecuteScript()
* public List execute(JSR223ScriptMacroParameters, String,
MacroTransformationContext)
AbstractScriptMacro:
* protected boolean canHaveJarsParameters()
* protected ClassLoader getClassLoader(String, ClassLoader)
WDYT?
Alex
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
25 Aug
25 Aug
9:25 a.m.
New subject: [xwiki-devs] [proposal] Cancelable events and refactoring script macros
+1
Caleb
Jerome Velociter wrote:
+1
Jerome.
----- Original Message -----
From: "Alex Busenius" <alex.busenius(a)xwiki.com>
To: "XWiki Developers" <devs(a)xwiki.org>
Sent: Monday, August 23, 2010 11:00:16 AM GMT +01:00 Amsterdam / Berlin / Bern / Rome /
Stockholm / Vienna
Subject: [xwiki-devs] [proposal] Cancelable events and refactoring script macros
Hello,
I'd like to refactor AbstractScriptMacro in order to be able to change
script behavior in the future without fanout violations. Here is the
plan emerged after several discussions with ThomasM:
Introduce a notion of cancelable events. Such events can be canceled by
the receiver (providing an optional reason), the actual canceling is
performed by the sender.
http://dev.xwiki.org/xwiki/bin/view/Design/CancelableEvents
Send a cancelable event ScriptEvaluationStartsEvent in
AbstractScriptMacro just before evaluating the script and a
ScriptEvaluationFinishedEvent right after evaluation has finished (in
finally block).
Add the following 3 listeners to those events (into
rendering.internal.macro.script) and move the corresponding code from
AbstractScriptMacro there:
ScriptClassLoaderHandlerListener
* does class loader manipulations currently performed by
AbstractScriptMacro#getClassLoader & Co
PermissionCheckerListener
* Aborts execution of scripts that need PR if the document is not saved
with PR
* To distinguish velocity and PR scripts, introduce a new interface
PrivilegedScriptMacro extends ScriptMacro and let
AbstractJSR223ScriptMacro implement it
NestedScriptMacroValidatorListener
* Replaces NestedScriptMacroValidator (ScriptMacroValidator component
is removed completely)
The refactoring will remove the following methods (breaks API):
AbstractJSR223ScriptMacro:
* protected boolean canExecuteScript()
* public List execute(JSR223ScriptMacroParameters, String,
MacroTransformationContext)
AbstractScriptMacro:
* protected boolean canHaveJarsParameters()
* protected ClassLoader getClassLoader(String, ClassLoader)
WDYT?
Alex
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
11:59 a.m.
New subject: [xwiki-devs] [proposal] Cancelable events and refactoring script macros
+1
Thanks,
Marius
On 08/23/2010 12:00 PM, Alex Busenius wrote:
Hello,
I'd like to refactor AbstractScriptMacro in order to be able to change
script behavior in the future without fanout violations. Here is the
plan emerged after several discussions with ThomasM:
Introduce a notion of cancelable events. Such events can be canceled by
the receiver (providing an optional reason), the actual canceling is
performed by the sender.
http://dev.xwiki.org/xwiki/bin/view/Design/CancelableEvents
Send a cancelable event ScriptEvaluationStartsEvent in
AbstractScriptMacro just before evaluating the script and a
ScriptEvaluationFinishedEvent right after evaluation has finished (in
finally block).
Add the following 3 listeners to those events (into
rendering.internal.macro.script) and move the corresponding code from
AbstractScriptMacro there:
ScriptClassLoaderHandlerListener
* does class loader manipulations currently performed by
AbstractScriptMacro#getClassLoader& Co
PermissionCheckerListener
* Aborts execution of scripts that need PR if the document is not saved
with PR
* To distinguish velocity and PR scripts, introduce a new interface
PrivilegedScriptMacro extends ScriptMacro and let
AbstractJSR223ScriptMacro implement it
NestedScriptMacroValidatorListener
* Replaces NestedScriptMacroValidator (ScriptMacroValidator component
is removed completely)
The refactoring will remove the following methods (breaks API):
AbstractJSR223ScriptMacro:
* protected boolean canExecuteScript()
* public List execute(JSR223ScriptMacroParameters, String,
MacroTransformationContext)
AbstractScriptMacro:
* protected boolean canHaveJarsParameters()
* protected ClassLoader getClassLoader(String, ClassLoader)
WDYT?
Alex
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
26 Aug
26 Aug
3:21 p.m.
New subject: [xwiki-devs] [proposal] Cancelable events and refactoring script macros
Good, if nobody complains, I'll commit the change later today.
Thanks,
Alex
On 08/23/2010 11:00 AM, Alex Busenius wrote:
Hello,
I'd like to refactor AbstractScriptMacro in order to be able to change
script behavior in the future without fanout violations. Here is the
plan emerged after several discussions with ThomasM:
Introduce a notion of cancelable events. Such events can be canceled by
the receiver (providing an optional reason), the actual canceling is
performed by the sender.
http://dev.xwiki.org/xwiki/bin/view/Design/CancelableEvents
Send a cancelable event ScriptEvaluationStartsEvent in
AbstractScriptMacro just before evaluating the script and a
ScriptEvaluationFinishedEvent right after evaluation has finished (in
finally block).
Add the following 3 listeners to those events (into
rendering.internal.macro.script) and move the corresponding code from
AbstractScriptMacro there:
ScriptClassLoaderHandlerListener
* does class loader manipulations currently performed by
AbstractScriptMacro#getClassLoader & Co
PermissionCheckerListener
* Aborts execution of scripts that need PR if the document is not saved
with PR
* To distinguish velocity and PR scripts, introduce a new interface
PrivilegedScriptMacro extends ScriptMacro and let
AbstractJSR223ScriptMacro implement it
NestedScriptMacroValidatorListener
* Replaces NestedScriptMacroValidator (ScriptMacroValidator component
is removed completely)
The refactoring will remove the following methods (breaks API):
AbstractJSR223ScriptMacro:
* protected boolean canExecuteScript()
* public List execute(JSR223ScriptMacroParameters, String,
MacroTransformationContext)
AbstractScriptMacro:
* protected boolean canHaveJarsParameters()
* protected ClassLoader getClassLoader(String, ClassLoader)
WDYT?
Alex
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devs mailing list
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5135
days inactive
5138
days old
6 comments
6 participants
participants (6)
-
Alex Busenius -
Caleb James DeLisle -
Jerome Velociter -
Marius Dumitru Florea -
Sergiu Dumitriu -
Thomas Mortagne