t take milliseconds.
commons.apache.org
HTH
m.
From: Zahid Rahman
Sent: Monday, December 16, 2019 2:50 PM
To: Struts Users Mailing List
Subject: Re: Java Singleton , Framework Design Patterns
> i prefer thread-safe implementations
> Sometimes we need to h
}}*
On Fri, 13 Dec 2019 at 01:33, Martin Gainty wrote:
> Singleton:
> i prefer thread-safe implementations and generally eschew singletons
> (unless extreme political pressure dictates otherwise)
> https://www.geeksforgeeks.org/singleton-design-pattern/
> [https://www.g
r 13, 2019 5:09 PM
> To: Struts Users Mailing List
> Subject: Re: Java Singleton , Framework Design Patterns
>
> Hi,
>
> >?am interested to know which topic prompts your question ?
> As you can see from the log file (below) the spring framework creates and
> destroys a si
MG>maybe.. see below
From: Zahid Rahman
Sent: Friday, December 13, 2019 5:09 PM
To: Struts Users Mailing List
Subject: Re: Java Singleton , Framework Design Patterns
Hi,
>?am interested to know which topic prompts your question ?
As you can see from t
reme political pressure dictates otherwise)
> https://www.geeksforgeeks.org/singleton-design-pattern/
> [https://www.geeksforgeeks.org/wp-content/uploads/gfg_200X200.png]<
> https://www.geeksforgeeks.org/singleton-design-pattern/>
> Singleton Design Pattern | Implementation - Geeksf
Singleton:
i prefer thread-safe implementations and generally eschew singletons (unless
extreme political pressure dictates otherwise)
https://www.geeksforgeeks.org/singleton-design-pattern/
[https://www.geeksforgeeks.org/wp-content/uploads/gfg_200X200.png]<https://www.geeksforgeeks.org/single
Thanks v. Much
On Thu, 12 Dec 2019, 06:56 Lukasz Lenart, wrote:
> czw., 12 gru 2019 o 06:13 Zahid Rahman napisał(a):
> > So my point is I have not been able to find accurate information , if
> some
> > one could furnish me a Java language specification or recommend a book
> > which accurately
12, 2019 12:56:05 AM
> Subject: Re: Java Singleton , Framework Design Patterns
>
> czw., 12 gru 2019 o 06:13 Zahid Rahman napisał(a):
> > So my point is I have not been able to find accurate information , if
> some
> > one could furnish me a Java language specification
If you want a definitive Java source - https://docs.oracle.com/javase/tutorial/
- Original Message -
From: "Lukasz Lenart"
To: "Struts Users Mailing List"
Sent: Thursday, December 12, 2019 12:56:05 AM
Subject: Re: Java Singleton , Framework Design Patterns
czw.,
czw., 12 gru 2019 o 06:13 Zahid Rahman napisał(a):
> So my point is I have not been able to find accurate information , if some
> one could furnish me a Java language specification or recommend a book
> which accurately describes these I would be grateful.
Start with Gang of Four
Hi,
It is my understanding that Design Patterns like the Java singleton is
used by framework developers. I.e. the Bean is a singleton.
It is also my assumption that the Java Singleton came in to being because
Java is a network centric ground up construction.
I don't think I will ever use
Hi Roger,
below is Off-Topic as for struts.
That's what I'm doing, but the StreamResult requires an InputStream
which forces the intermediate step of creating a temporary file
I'm not so sure, i haven't done it myself, but there were a discussion
here some time ago
pointing out that one can
solution to providing the StreamResult with an input
stream that would download multiple files.
Regards
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Any examples of doing this in struts 2
You can get the HttpServletResponse by:
ServletActionContext.getResponse()
And then, you can set the download file name, by:
response.setHeader(Content-Disposition,
attachment; filename= + fileName);
And then, you can get the
On Sat, 2010-11-20 at 09:41 +0100, Paweł Wielgus wrote:
Hi All,
read about streamResult (I assume You use struts2), and also there is
no need for next action in chain, user can simply check as many files
as he wants and click download what will call downloadAction that will
simply return zip
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-2010 15:14
Subject:
File Download with multiple files. Design question
Hi
I have a requirement to present the user with a list of files stored on
the
server, and then download the files selected to the user. If the user
selects a single file - no problem. However if the user selects multiple
be
welome.
Regards
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.
Regards
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i load up dataParams.jsp from main.jsp:
[code] c:when test=${param.dataParams == 'show' and param.data == null}
s:action name=dataParams_input
executeResult=true/s:action/c:when [/code]
i map it in struts.xml:
[code] action name=dataParams_* method={1} class=loto.action.DataParams
:
[code] form action=dataParams method=get [/code]
because it's supposed to validate while beeing loaded by main.jsp, but it
displays alone not included in main.jsp when it displays errors.
This is by design (sort of), your input result dispatches to
/jsp/dataParams.jsp directly. It works
Do you know how to setup initial project files you want,
This may be helpful to you if you very basic
=
mvn archetype:create -DgroupId=org.apache.struts
-DartifactId=struts2-archetype-starter -DarchetypeGroupId=org.apache.struts
Hi,
I have a small project and I am new in struts :
DB Tables :
User (userId, UserName,...,...)
Roles(userId, Rolename,.)
I want to have a jsp page :
that has a search form : textfield(userId) and a search button
when the user type a userid and press search button :
Yes
i can send u a project where i did that
at this point i dont have time to do all that for you
On Tuesday, December 1, 2009, A. Lotfi majidna...@yahoo.com wrote:
Hi,
I have a small project and I am new in struts :
DB Tables :
User (userId, UserName,...,...)
Roles(userId,
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Hi,
This is a general design practice question.
Say if I am designing User Account Management component that does the
following:
1) User Profile info update -- updates firs name, last name, etc,...
2) Change password. -- do password verification, and change password
3) User Payment info update
tsongwei wrote:
This is a general design practice question.
Say if I am designing User Account Management component that does the
following:
1) User Profile info update -- updates firs name, last name, etc,...
2) Change password. -- do password verification, and change password
3) User Payment
-
I have used ROSE to generate plain jsps (without taglibs) and non-annotated
POJOs
will ROSE (or any OOD/OOA design tool) generate a complete MVC architecture?
(currently seeking a tool which would auto-generate the 'guts' of struts.xml
and struts-default.xml and web.xml)
thanks!
Martin
no nothing to do with IBM.)
John Feng
On Sun, Jun 14, 2009 at 12:02 PM, Martin Gaintymgai...@hotmail.com wrote:
Feng-
I have used ROSE to generate plain jsps (without taglibs) and non-annotated
POJOs
will ROSE (or any OOD/OOA design tool) generate a complete MVC architecture?
(currently
What I normally went thru when I started a project. ( -by Rose and
import to an IDE)
1. clarify the problem boundary for your system to be built;
2. identify the actors and use cases for the system/subsystem;
4. use case visual realization
5. UML OO design for use case where kicks in OO design
Feng-
I have used ROSE to generate plain jsps (without taglibs) and non-annotated
POJOs
will ROSE (or any OOD/OOA design tool) generate a complete MVC architecture?
(currently seeking a tool which would auto-generate the 'guts' of struts.xml
and struts-default.xml and web.xml)
thanks!
Martin
been assigned the task for the Application Design and
later to lead the development team.From the last so many years, i am only
invloved in develpoment whatever i have been asked to develop i just
followed that.
Now i have to first design the Application than have to lead the development
process,i
Hi Shekher,
i'm no expert in this subject but,
You might read something abut RUP (rational unified process),
then read abut Agile and XP and SCRUM - it's not strictly about design
but it will give some light about the whole process.
In the mean time try to imagine how this app will look like
/12 Paweł Wielgus poulw...@gmail.com
Hi Shekher,
i'm no expert in this subject but,
You might read something abut RUP (rational unified process),
then read abut Agile and XP and SCRUM - it's not strictly about design
but it will give some light about the whole process.
In the mean time try
Some of my questions are
Is there any Use of UML
How to think in terms of Design Patterns while designing the process
or any tool(s) which can help me a bit in this process
2009/6/12 shekher awasthi shekher.awas...@gmail.com
Thanks Pawel for quick reply regarding the application how
I have some global properties in my application that I need to access
from several of my JSP pages.
In my application I have a base action which all of my actions use. I
was thinking of putting a getGlobalProperties method in that action
that return an instance of an Singleton that holds my
Plugins are not that different than putting all those mappings,
classes, etc in the webapp. The limitations would be the same as the
S2 limitations (in theory at least).
musachy
On Tue, Jan 6, 2009 at 7:24 PM, Dan Daly dancd...@yahoo.com wrote:
Hello,
I am working on an application that needs
Hello,
I am working on an application that needs different sets of functionality based
on where it is installed. The Struts 2 plugin mechanism looks like a perfect
solution as it would all us to write sets of plugins that we could install as
needed.
The upper bound on the number of plug-ins
Perhaps take a look at the OSGi plugin as well... It's in beta, but
provides functionality such as deploying bundles of actions during
runtime.
http://cwiki.apache.org/S2PLUGINS/osgi-plugin.html
-Wes
On Tue, 2009-01-06 at 16:24 -0800, Dan Daly wrote:
Hello,
I am working on an application
I'm looking for the best and up-to-date Struts2 books. I see that
Struts 2 in Action is coming out a little later this year, but I also
noticed Struts 2 Design and Programming: A Tutorial, which came out
with a second edition in January. Has anyone here looked at this,
outside of reading
noticed Struts 2 Design and Programming: A Tutorial, which came out
with a second edition in January. Has anyone here looked at this,
outside of reading the Amazon reviews?
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I've had this book for about a week now. I bought it because I'm new to S2 and
wanted something that could give more detail and examples than the S2
documentation wiki and the in action book isn't available until May-ish. S2
Design and Programming serves the purpose but not with the depth I had
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in the same page, iam unable to get
s:select tag list data
how can i maintain the s:select list data,
plz help me ASAP,
Thanks in Advance,
Venkat
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Hi,
Does anyone have any experience using Struts 2 to implement a web app
that provides faceted search? (Using Lucene/LARQ etc.)
I'm wondering what the best approach is, using SiteMesh/Tiles ie, when
it comes to the architecture/design of the web app.
The basic idea is to provide the user
On Thu, Feb 21, 2008 at 2:03 AM, Jeromy Evans
[EMAIL PROTECTED] wrote:
Just thought I'd mention that Dave followed this up for you in struts-dev:
http://www.nabble.com/StrutsStatics...-td15595866.html
Just to let you know this link does not work (seems incomplete).
Maxx wrote:
On Thu, Feb 21, 2008 at 2:03 AM, Jeromy Evans
[EMAIL PROTECTED] wrote:
Just thought I'd mention that Dave followed this up for you in struts-dev:
http://www.nabble.com/StrutsStatics...-td15595866.html
Just to let you know this link does not work (seems incomplete).
--- Jeromy Evans [EMAIL PROTECTED] wrote:
Maxx wrote:
On Thu, Feb 21, 2008 at 2:03 AM, Jeromy Evans
[EMAIL PROTECTED] wrote:
http://www.nabble.com/StrutsStatics...-td15595866.html
Just to let you know this link does not work (seems incomplete).
Works for me in FF and IE6 and from
Strangely it first freezes my browser. Re-testing it now and it's working.
I also thought the three dots could come from a shortened url, while
it's effectively not.
Apologies.
Maxx
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I wouldn't have seen that. Thanks, Jeromy. It's disturbing to see this
kind of code in 2008 and makes me wonder what other antipatterns might
exist in the struts2 codebase.
Dave Newton wrote:
--- [EMAIL PROTECTED] wrote:
I'm curious why the developers of struts2 chose to define
--- [EMAIL PROTECTED] wrote:
I wouldn't have seen that. Thanks, Jeromy. It's disturbing to see this
kind of code in 2008 and makes me wonder what other antipatterns might
exist in the struts2 codebase.
Funny; I was thinking the same thing about the static context stuff in JSF
that makes it
I am confused here. You do know that you don't need to
extend/implement any class/interface right? Or I am missing the whole
point.
musachy
On Thu, Feb 21, 2008 at 11:39 AM, [EMAIL PROTECTED] wrote:
Funny; I was thinking the same thing about the static context stuff in
JSF
that makes it
--- [EMAIL PROTECTED] wrote:
3. Classes can't stand on their own.
Neither can a class that's using a static method.
4. It's easier for Java beginners to mix business logic with
MVC framework code.
Easier? Like... typing is actually easier with S2?
Never mind, I don't get that one, and this
--- Musachy Barroso [EMAIL PROTECTED] wrote:
I am confused here. You do know that you don't need to
extend/implement any class/interface right? Or I am missing the whole
point.
The original issue was regarding error messages and how they're stored in the
action rather than in a thread/instance
Funny; I was thinking the same thing about the static context stuff in
JSF
that makes it really difficult to test in isolation.
What makes you think that's difficult? I'm sure you're aware of mock
objects. There are a number of mock JSF test frameworks---JMock and Shale
come to mind. Writing
to follow it up for you.
From a design perspective I think it's a negligible issue that people
are opinionated about because it's rather easy to understand.
Put First things First
Incidentally, the most significant antipattern present in Struts 2 that
affects me is that of the Fragile Base Class
),
and I'm wondering if it's systemic.
Can anyone comment on why this particular design decision was made?
Thank you.
*** IMPORTANT
NOTE* The opinions expressed in this
message and/or any attachments are those of the author and not
necessarily
--- [EMAIL PROTECTED] wrote:
I'm curious why the developers of struts2 chose to define constants in an
interface (StrutsStatics) and then implement that interface in at least 18
classes
It's likely you'd need to ask the original WebWork developers.
Item #17, Use interfaces only to define
Dave Newton wrote:
--- [EMAIL PROTECTED] wrote:
I'm curious why the developers of struts2 chose to define constants in an
interface (StrutsStatics) and then implement that interface in at least 18
classes
Just thought I'd mention that Dave followed this up for you in struts-dev:
-framework-design-question%3A-Type-Converters-and-Tags-tp15019888p15019888.html
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I'm not sure how difficult it would be to have the tags look for a
type converter first, but if you can come up with a working patch, I'd
be happy to review it.
HTH, Ted
On Jan 22, 2008 9:41 AM, jimski [EMAIL PROTECTED] wrote:
I recently ran into an issue where I noticed that a custom type
On Nov 16, 2007 11:09 AM, Adam Hardy [EMAIL PROTECTED] wrote:
To answer your question, I haven't had to do much to plug in OpenJPA and
Struts2
together - in fact, I haven't had to do anything apart from decide whether I
wanted to have a filter or a Struts2 interceptor or a Spring interceptor
Hopefully that's the sort of stuff you're interested in hearing about.
Yes, thanks!
By custom interceptors I meant strategies like Open Session In View,
which can be used to implement One Transaction Per Request
*
Over on dev@, a couple of us are working on a JPA MailReader. Rather
than just try and port the old version, we're also refactoring the
internal design so that it's more in line with the JPA overall.
I know the JPA is growing in popularlity among Struts developers. I
was wondering
yet to overhaul the versioning or the identity fields (praying for smooth passage).
regards
Adam
Ted Husted on 16/11/07 10:36, wrote:
Over on dev@, a couple of us are working on a JPA MailReader. Rather
than just try and port the old version, we're also refactoring the
internal design so
Ted Husted wrote:
I know the JPA is growing in popularlity among Struts developers. I
was wondering if there are certain Struts 2 features that people where
finding useful in using JPA or Hibernate 3
For us it's Hibernate 3 still. We'll be moving to JPA in the code (with
Hibernate as the
I could use some advice from some folks with more experience and
knowledge of Struts2 than I to assist me in determining the correct way
(or lay out some viable options) to design a solution for the following
senario:
We need to generate a PDF report real time based on data in a database
.
Regards,
Rene
Hoying, Ken schrieb:
I could use some advice from some folks with more experience and
knowledge of Struts2 than I to assist me in determining the correct way
(or lay out some viable options) to design a solution for the following
senario:
We need to generate a PDF report real
in determining the correct way
(or lay out some viable options) to design a solution for the following
senario:
We need to generate a PDF report real time based on data in a database
that is available for download. What we believe that we would like to
do is utilize FOP (http
[mailto:[EMAIL PROTECTED]
Sent: Thursday, August 02, 2007 8:07 AM
To: Struts Users Mailing List
Subject: Re: [S2] Design Advice Needed
You should definitely have a look into the struts2-jasperreports-plugin
- both for checking out how to write own results and evaluating if you
might want to use jasper
@struts.apache.org
Subject: [S2] Design Advice Needed
I could use some advice from some folks with more experience and
knowledge of Struts2 than I to assist me in determining the correct way
(or lay out some viable options) to design a solution for the following
senario:
We need to generate a PDF
you may choose Jasper,
which
is likely a better idea anyways.
-Wes
-Original Message-
From: Hoying, Ken [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 02, 2007 7:40 AM
To: user@struts.apache.org
Subject: [S2] Design Advice Needed
I could use some advice from some folks with more
which is
split into three drop down fileds(year,month,day) and in the DTO its a
single field. How can manage this. Is it a standard that we can do data
type conversions in Action Class.?? I was trying to find out best
practice.
Please help me in sorting out the issue. Is there any design changes I
the issue. Is there any design changes I
have
to do??
--
Regards
Viplav Kallepu
--
Yoge,
AdventNet, Inc.
925-965-6528
[EMAIL PROTECTED]
site24x7.com
--
Regards
Viplav Kallepu
which is
split into three drop down fileds(year,month,day) and in the DTO its a
single field. How can manage this. Is it a standard that we can do
data
type conversions in Action Class.?? I was trying to find out best
practice.
Please help me in sorting out the issue. Is there any design
jsp which is
split into three drop down fileds(year,month,day) and in the DTO its a
single field. How can manage this. Is it a standard that we can do data
type conversions in Action Class.?? I was trying to find out best practice.
Please help me in sorting out the issue. Is there any design
Hello,
I am wondering what a nice design pattern would be for a JSP that shall
display an additional form if the action wants so (and not display it at
all if not).
I think that it is a bad solution to have a parameter displayForm that
is set by the action, because the action should not know
--- Anton Pussep [EMAIL PROTECTED] wrote:
I think that it is a bad solution to have a
parameter displayForm that is set by the action,
because the action should not know anything about
the View.
It doesn't; it just knows if, based on some business
or application logic, a flag is being set.
Another alternative,
Move all the images/css specific to abc.com to a subdirectory named
/abc/...
Let all the images related to xyz.com be in another sub-directory /xyx/
Change path of images in your application to /abc or /xyz based on the
request.*getRemoteHost*() .
--
Yoge,
AdventNet, Inc.
I have discovered an optimized (very little code) solution to CRUD using
S2. My next question has to do with CRUD across a 1:M domain model. I have
the Preparable and ModelDriven technique working nicely with the id (PK)
being set in the BaseAction class. What I would like to work through next
Dear All,
I am new to struts so would need your help here.
My client has an enterprise application(struts1.0 based) with :
1 WAR (virtual host www.abc.com)
1 EJB module
Now, the client want the same application(almost same business rules..i.e
same EJB module) but in different look and feel
and so
forth. Do you think this is a good approach? It's worked great for us so
far.
Cheers!
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of the above should be fine .
Regards
-Original Message-
From: meeboo [mailto:[EMAIL PROTECTED]
Sent: 11 June 2007 13:52
To: user@struts.apache.org
Subject: [S2] Design patterns
Hey all
How do you build up your Struts 2 applications architecture wise? Say
for
instance
I agree with Guru. After you've gained familiarity with S2, you need to
consider about what's appropriate for the particular use-cases and
business/domain model.
As soon as you start repeating yourself in your action/view code you
know its time to refactor.
Here's some of my approaches:
- For
with multiple methods.
On the other hand, Struts' zero config support doesn't seem to work unless
you keep the use cases separated out into separate Action classes. I really
like zero config ;-)
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the Actions. The
Actions are just here to either query services/domain or create business
objects and save them. (See Domain Driven Design recommendations for
more information)
4] I only implement SessioNAware, ValidationAware, and so on when I need
to. I do not want to clutter ALL my classes
Hello,
I am working on my first struts application, and I was wondering about
design patterns for communicating between actions.
For example, I have actions A and B. A runs first and creates some data (e.g.,
a session bean). When B runs, it needs to verify that the data is actually
available
Which version of struts are you using?
Yoni Amir wrote:
Hello,
I am working on my first struts application, and I was wondering about
design patterns for communicating between actions.
For example, I have actions A and B. A runs first and creates some
data (e.g.,
a session bean). When B runs
The latest struts 2, I think it's 2.0.6 ... and 'hely' was a typo for
'help', of course :)
On 5/27/07, Mansour [EMAIL PROTECTED] wrote:
Which version of struts are you using?
Yoni Amir wrote:
Hello,
I am working on my first struts application, and I was wondering about
design patterns
Yoni Amir wrote:
Hello,
I am working on my first struts application, and I was wondering about
design patterns for communicating between actions.
For example, I have actions A and B. A runs first and creates some
data (e.g.,
You have few opions here, you can you action chaining:
http
I hope I am interpreting your question properly. If not, sorry. It
sounds like you are asking when you return to page 1 from page 2 should
you re-populate the page 1 form. The answer is usually yes. Either
Struts-1 or Struts-2 tags will help in the re-population. If you want
to use plain html
Say I have two Jsp pages, Page 1, Page 2.
On page 1 I have some text fields such as Name, SSN for example, and the
user types in Name and SSN and then submit the form and the navigation
goes to page 2. On page 2 I have the bread crumb trail saying Page 1
Page 2. Notice that Page 1 is a clickable
of the process.
First time I participated in the mailing list.
Edward
-Original Message-
From: Zhang, Larry (L.) [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 10, 2007 11:58 AM
To: Struts Users Mailing List
Subject: The design of bread crumb trail
Say I have two Jsp pages, Page 1
Are you using S1 or S2?
I once implemented a S1 bread-crumbs facility using a custom
RequestProcessor to put a stack of page url's into the user's session.
This worked well, and allowed a page to return to any of the last 3
pages. I used it to go from the catalog page, where the user made a
Thanks for the answers, but I would like a direct answer to my questions
(1)... (2)... . Any thoughts?
-Original Message-
From: Ray Clough [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 10, 2007 1:41 PM
To: Struts Users Mailing List
Subject: Re: The design of bread crumb trail
Are you
] wrote:
Folks:
I have a form that is rendered by calling an action from a get or a put.
In edit mode, the fields are pre-populated from the POJO (param to
get
the POJO is passed on the URL GET).
In create mode, the fields are, of course, empty.
The design issue I am having has to do
. With the addition of a setModel method, the Action Manager
can be injected automatically.
HTH, Ted
http://www.husted.com/ted/blog/
On 4/5/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Hello every one:
I am trying to write a little application to familiarize myself with
struts 2. I am trying to design
On 4/6/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
How many approach there is ? Where can I read about them ?
Just the two. Either put the properties on the Action class, or
implement ModelDriven.
A third might be to create your own interceptor that did the same
thing as ModelDriven, but
Folks:
I have a form that is rendered by calling an action from a get or a put.
In edit mode, the fields are pre-populated from the POJO (param to get
the POJO is passed on the URL GET).
In create mode, the fields are, of course, empty.
The design issue I am having has to do
Hello every one:
I am trying to write a little application to familiarize myself with
struts 2. I am trying to design the application using mvc2. the
application is nothing but a small utility for invoices. It store,
retrieves and update invoices. Each invoice belongs to an Account in the
DB
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