[xwiki-users] How to deploy Java Component and save files?

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Giordano Ninonà

21 Dec 2015 21 Dec '15

3:20 p.m.

Hi users, My project in XWiki consists in a java component which offers some APIs through a script service called by a Velocity script in a wiki page. I put my .jar in the directory C:\XWiki Enterprise 7.3\*webapps\xwiki\WEB-INF\lib *and this is the Velocity and HTML code that I've put in my XWiki page: {{velocity}} #if("$!request.evolver" == 1) ## Request for creating a new instance $services.pars.parse() $services.evo.removeInstance("Take bike") $response.sendRedirect($xwiki.getURL('Main.WebHome')) ## Stop processing, since we already sent a redirect. #stop #end {{html}} <form action="" id="newEvolution" method="post"> <div> <input type="hidden" name="evolver" value="1"/> <span class="buttonwrapper"> <input type="submit" value="Evolve" class="button"/> </span> </div> </form> {{/html}} {{/velocity}} Let first say that nothing is happening when I click on the "Evolve" button and I don't know why...it looks like it should work, also because creating a Main_test class in Eclipse, I can run my software calling exactly the same methods and it works! Moreover my component must create some files to store some information, thus I am wondering where to save those files in order to make them accessible by the component. Any suggestions? Thanks in advance, Giordano.

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vincent＠massol.net

22 Dec 22 Dec

11:31 a.m.

Hi Giordano, On 21 Dec 2015 at 15:20:55, Giordano Ninonà (giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com)) wrote:

...

[snip]

...

Let first say that nothing is happening when I click on the "Evolve" button and I don't know why...it looks like it should work, also because creating a Main_test class in Eclipse, I can run my software calling exactly the same methods and it works!

You could use GET instead of POST and see what you get in the URL (ie whether you get the evolver=1 request param).

...

Moreover my component must create some files to store some information, thus I am wondering where to save those files in order to make them accessible by the component.

You can use the XWiki’s permanent directory. See http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module Thanks -Vincent

...

Any suggestions? Thanks in advance, Giordano.

Giordano Ninonà

3:38 p.m.

Dear Vincent, Tank you for your reply, I would try what you suggested in the afternoon, but regarding the "evolver=1 request param", I've set it equal to 1 together with POST command in order to make it always true ensuring that my component is started every time. My thoughts were wrong? Giordano. 2015-12-22 11:31 GMT+01:00 vincent(a)massol.net <vincent(a)massol.net>et>:

...

Hi Giordano, On 21 Dec 2015 at 15:20:55, Giordano Ninonà (giordano.ninona(a)gmail.com (mailto:giordano.ninona@gmail.com)) wrote:

[snip]

Let first say that nothing is happening when I click on the "Evolve"

button

and I don't know why...it looks like it should work, also because

creating

a Main_test class in Eclipse, I can run my software calling exactly the same methods and it works!

You could use GET instead of POST and see what you get in the URL (ie whether you get the evolver=1 request param).

Moreover my component must create some files to store some information, thus I am wondering where to save those files in order to make them accessible by the component.

You can use the XWiki’s permanent directory. See http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module Thanks -Vincent

Any suggestions? Thanks in advance, Giordano.

vincent＠massol.net

3:44 p.m.

On 22 Dec 2015 at 15:38:48, Giordano Ninonà (giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com)) wrote:

...

You said it didn’t work. You just need to debug what’s not working. First thing to check is whether you code inside "#if("$!request.evolver" == 1)” is called or not. Also I’d use an #else instead of #stop. Thanks -Vincent

...

Giordano. 2015-12-22 11:31 GMT+01:00 vincent@massol.net(mailto:vincent@massol.net) :

Hi Giordano, On 21 Dec 2015 at 15:20:55, Giordano Ninonà (giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com)(mailto:giordano.ninona@gmail.com)) wrote:

[snip]

You could use GET instead of POST and see what you get in the URL (ie whether you get the evolver=1 request param).

Moreover my component must create some files to store some information, thus I am wondering where to save those files in order to make them accessible by the component.

You can use the XWiki’s permanent directory. See http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module Thanks -Vincent > Any suggestions? > > Thanks in advance, > Giordano.

Ludovic Dubost

11:30 p.m.

Isn't the problem that it should be #if("$!request.evolver" == "1") And not #if("$!request.evolver" == 1) Ludo Le 22 déc. 2015 21:32, "Giordano Ninonà" <giordano.ninona(a)gmail.com> a écrit :

...

Hi Giordano, On 21 Dec 2015 at 15:20:55, Giordano Ninonà (giordano.ninona(a)gmail.com (mailto:giordano.ninona@gmail.com)) wrote:

[snip]

Let first say that nothing is happening when I click on the "Evolve"

button

and I don't know why...it looks like it should work, also because

creating

a Main_test class in Eclipse, I can run my software calling exactly the same methods and it works!

You could use GET instead of POST and see what you get in the URL (ie whether you get the evolver=1 request param).

Moreover my component must create some files to store some information, thus I am wondering where to save those files in order to make them accessible by the component.

You can use the XWiki’s permanent directory. See http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module Thanks -Vincent

Any suggestions? Thanks in advance, Giordano.

_______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users

Marius Dumitru Florea

23 Dec 23 Dec

6:51 a.m.

On Wed, Dec 23, 2015 at 12:30 AM, Ludovic Dubost <ludovic(a)xwiki.com> wrote:

...

Isn't the problem that it should be #if("$!request.evolver" == "1") And not

...

#if("$!request.evolver" == 1)

I thought so too but I tested and it works. I checked the Velocity documentation [1] and the explanation is: "In the last case (when objects are of different classes), the toString() method is called on each object and the resulting Strings are compared." Thanks, Marius [1] https://click.apache.org/docs/velocity/vtl-reference-guide.html##if/#elseif…

...

Ludo Le 22 déc. 2015 21:32, "Giordano Ninonà" <giordano.ninona(a)gmail.com> a écrit :

component is started every time. My thoughts were wrong? Giordano. 2015-12-22 11:31 GMT+01:00 vincent(a)massol.net <vincent(a)massol.net>et>: > Hi Giordano, > > On 21 Dec 2015 at 15:20:55, Giordano Ninonà (giordano.ninona(a)gmail.com > (mailto:giordano.ninona@gmail.com)) wrote: > > > Hi users, > > > > My project in XWiki consists in a java component which offers some

APIs

> > through a script service called by a Velocity script in a wiki page. > > > > I put my .jar in the directory C:\XWiki Enterprise > > 7.3\*webapps\xwiki\WEB-INF\lib > > *and this is the Velocity and HTML code that I've put in my XWiki

page:

> > > > {{velocity}} > > #if("$!request.evolver" == 1) > > ## Request for creating a new instance > > $services.pars.parse() > > $services.evo.removeInstance("Take bike") > > $response.sendRedirect($xwiki.getURL('Main.WebHome')) > > ## Stop processing, since we already sent a redirect. > > #stop > > #end > > [snip] > > > Let first say that nothing is happening when I click on the "Evolve" > button > > and I don't know why...it looks like it should work, also because > creating > > a Main_test class in Eclipse, I can run my software calling exactly

the

> > same methods and it works! > > You could use GET instead of POST and see what you get in the URL (ie > whether you get the evolver=1 request param). > > > Moreover my component must create some files to store some

information,

> > thus I am wondering where to save those files in order to make them > > accessible by the component. > > You can use the XWiki’s permanent directory. > > See >

http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module

Thanks -Vincent

Any suggestions? Thanks in advance, Giordano.

_______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users

Giordano Ninonà

4:56 p.m.

Hi users, Thanks for your answers, anyway it wasn't a String problem, and also change to GET doesn't produce anything. Maybe I've found my problem, when I start my component, the very first thing to do is to parse an XML file thus my script service provide a "parseBPXML()" method. The problem is where can i store this file in order to make accessible by my component, I've already Injected the Environment component but I can't understand where to put my file (i.e. which is the "permanent directory") and how to access it. Thank you, Giordano. 2015-12-23 6:51 GMT+01:00 Marius Dumitru Florea < mariusdumitru.florea(a)xwiki.com>gt;:

...

On Wed, Dec 23, 2015 at 12:30 AM, Ludovic Dubost <ludovic(a)xwiki.com> wrote:

Isn't the problem that it should be #if("$!request.evolver" == "1") And not

#if("$!request.evolver" == 1)

Ludo Le 22 déc. 2015 21:32, "Giordano Ninonà" <giordano.ninona(a)gmail.com> a écrit : > Dear Vincent, > > Tank you for your reply, I would try what you suggested in the

afternoon,

> but regarding the "evolver=1 request param", I've set it equal to 1 > together with POST command in order to make it always true ensuring

that

my > component is started every time. My thoughts were wrong? > > Giordano. > > 2015-12-22 11:31 GMT+01:00 vincent(a)massol.net <vincent(a)massol.net>et>: > > > Hi Giordano, > > > > On 21 Dec 2015 at 15:20:55, Giordano Ninonà (

giordano.ninona(a)gmail.com

> (mailto:giordano.ninona@gmail.com)) wrote: > > > Hi users, > > > > My project in XWiki consists in a java component which offers some

APIs > > > through a script service called by a Velocity script in a wiki

page.

> > > > I put my .jar in the directory C:\XWiki Enterprise > > 7.3\*webapps\xwiki\WEB-INF\lib > > *and this is the Velocity and HTML code that I've put in my XWiki

page: > > > > > > {{velocity}} > > > #if("$!request.evolver" == 1) > > > ## Request for creating a new instance > > > $services.pars.parse() > > > $services.evo.removeInstance("Take bike") > > > $response.sendRedirect($xwiki.getURL('Main.WebHome')) > > > ## Stop processing, since we already sent a redirect. > > > #stop > > > #end > > > > [snip] > > > > > Let first say that nothing is happening when I click on the

"Evolve"

> button > > and I don't know why...it looks like it should work, also because > creating > > a Main_test class in Eclipse, I can run my software calling exactly

the

information,

> > thus I am wondering where to save those files in order to make them > > accessible by the component. > > You can use the XWiki’s permanent directory. > > See >

http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module

Thanks -Vincent > Any suggestions? > > Thanks in advance, > Giordano.

_______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users

vincent＠massol.net

4:59 p.m.

On 23 Dec 2015 at 16:56:20, Giordano Ninonà (giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com)) wrote:

...

Check your xwiki.properties file and search for permanentDirectory. Thanks -Vincent

...

Thank you, Giordano. 2015-12-23 6:51 GMT+01:00 Marius Dumitru Florea < mariusdumitru.florea(a)xwiki.com>gt;:

On Wed, Dec 23, 2015 at 12:30 AM, Ludovic Dubost wrote:

Isn't the problem that it should be #if("$!request.evolver" == "1") And not

#if("$!request.evolver" == 1)

Ludo Le 22 déc. 2015 21:32, "Giordano Ninonà" a écrit : > Dear Vincent, > > Tank you for your reply, I would try what you suggested in the

afternoon,

> but regarding the "evolver=1 request param", I've set it equal to 1 > together with POST command in order to make it always true ensuring

that

my > component is started every time. My thoughts were wrong? > > Giordano. > > 2015-12-22 11:31 GMT+01:00 vincent(a)massol.net : > > > Hi Giordano, > > > > On 21 Dec 2015 at 15:20:55, Giordano Ninonà (

giordano.ninona(a)gmail.com

> (mailto:giordano.ninona@gmail.com)) wrote: > > > Hi users, > > > > My project in XWiki consists in a java component which offers some

APIs > > > through a script service called by a Velocity script in a wiki

page.

> > > > I put my .jar in the directory C:\XWiki Enterprise > > 7.3\*webapps\xwiki\WEB-INF\lib > > *and this is the Velocity and HTML code that I've put in my XWiki

"Evolve"

> button > > and I don't know why...it looks like it should work, also because > creating > > a Main_test class in Eclipse, I can run my software calling exactly

the

information,

> > thus I am wondering where to save those files in order to make them > > accessible by the component. > > You can use the XWiki’s permanent directory. > > See >

http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module

> > Thanks > -Vincent > > > Any suggestions? > > > > Thanks in advance, > > Giordano. > _______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users

_______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users

Giordano Ninonà

7:40 p.m.

Thanks Vincent, I found everything I need but I got a nullpointer exeptioneverytime I use the *environment.getTemporaryDirectory() *method in my code. I thought it could be the component manager, so I've tried to inizialize it but I got an error every time I call the method "initialize()", as suggested in [1] and [2]. Any ideas why it is not working? Thanks, Giordano [1] http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module [2] http://extensions.xwiki.org/xwiki/bin/view/Extension/Component+Module#HComp… 2015-12-23 16:59 GMT+01:00 vincent(a)massol.net <vincent(a)massol.net>et>:

...

On 23 Dec 2015 at 16:56:20, Giordano Ninonà (giordano.ninona(a)gmail.com (mailto:giordano.ninona@gmail.com)) wrote:

Hi users, Thanks for your answers, anyway it wasn't a String problem, and also

change

to GET doesn't produce anything. Maybe I've found my problem, when I

start

my component, the very first thing to do is to parse an XML file thus my script service provide a "parseBPXML()" method. The problem is where can

store this file in order to make accessible by my component, I've already Injected the Environment component but I can't understand where to put my file (i.e. which is the "permanent directory") and how to access it.

Check your xwiki.properties file and search for permanentDirectory. Thanks -Vincent

Thank you, Giordano. 2015-12-23 6:51 GMT+01:00 Marius Dumitru Florea < mariusdumitru.florea(a)xwiki.com>gt;: > On Wed, Dec 23, 2015 at 12:30 AM, Ludovic Dubost > wrote: > > > Isn't the problem that it should be > > > > #if("$!request.evolver" == "1") > > > > And not > > > > > > > #if("$!request.evolver" == 1) > > > > I thought so too but I tested and it works. I checked the Velocity > documentation [1] and the explanation is: > > "In the last case (when objects are of different classes), the

toString()

> method is called on each object and the resulting Strings are

compared."

> > Thanks, > Marius > > [1] > >

> > > > > > Ludo > > Le 22 déc. 2015 21:32, "Giordano Ninonà" a > > écrit : > > > > > Dear Vincent, > > > > > > Tank you for your reply, I would try what you suggested in the > afternoon, > > > but regarding the "evolver=1 request param", I've set it equal to 1 > > > together with POST command in order to make it always true ensuring > that > > my > > > component is started every time. My thoughts were wrong? > > > > > > Giordano. > > > > > > 2015-12-22 11:31 GMT+01:00 vincent(a)massol.net : > > > > > > > Hi Giordano, > > > > > > > > On 21 Dec 2015 at 15:20:55, Giordano Ninonà ( > giordano.ninona(a)gmail.com > > > > (mailto:giordano.ninona@gmail.com)) wrote: > > > > > > > > > Hi users, > > > > > > > > > > My project in XWiki consists in a java component which offers

some

> > APIs > > > > > through a script service called by a Velocity script in a wiki > page. > > > > > > > > > > I put my .jar in the directory C:\XWiki Enterprise > > > > > 7.3\*webapps\xwiki\WEB-INF\lib > > > > > *and this is the Velocity and HTML code that I've put in my

XWiki

> > page: > > > > > > > > > > {{velocity}} > > > > > #if("$!request.evolver" == 1) > > > > > ## Request for creating a new instance > > > > > $services.pars.parse() > > > > > $services.evo.removeInstance("Take bike") > > > > > $response.sendRedirect($xwiki.getURL('Main.WebHome')) > > > > > ## Stop processing, since we already sent a redirect. > > > > > #stop > > > > > #end > > > > > > > > [snip] > > > > > > > > > Let first say that nothing is happening when I click on the > "Evolve" > > > > button > > > > > and I don't know why...it looks like it should work, also

because

> > > > creating > > > > > a Main_test class in Eclipse, I can run my software calling

exactly

> > the > > > > > same methods and it works! > > > > > > > > You could use GET instead of POST and see what you get in the

URL (ie

> > > > whether you get the evolver=1 request param). > > > > > > > > > Moreover my component must create some files to store some > > information, > > > > > thus I am wondering where to save those files in order to make

them

> > > > > accessible by the component. > > > > > > > > You can use the XWiki’s permanent directory. > > > > > > > > See > > > > > >

http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module

> > > > Thanks > > -Vincent > > > > > Any suggestions? > > > > > > Thanks in advance, > > > Giordano. > > > _______________________________________________ > users mailing list > users(a)xwiki.org > http://lists.xwiki.org/mailman/listinfo/users > _______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users

_______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users

vincent＠massol.net

26 Dec 26 Dec

1:03 p.m.

Hi Giordano, On 23 Dec 2015 at 19:40:11, Giordano Ninonà (giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com)) wrote:

...

Thanks Vincent, I found everything I need but I got a nullpointer exeptioneverytime I use the environment.getTemporaryDirectory() method in my code. I thought it could be the component manager, so I've tried to inizialize it but I got an error every time I call the method "initialize()", as suggested in [1] and [2].

If you’re deploying your component inside an XWiki you don’t need to initialize the CM, this is done for you by XWiki. A NPE means you’re missing an @Inject and thus the Environment instance is null. Could you show us your code? Thanks -Vincent

...

On 23 Dec 2015 at 16:56:20, Giordano Ninonà (giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com)(mailto:giordano.ninona@gmail.com)) wrote:

Check your xwiki.properties file and search for permanentDirectory. Thanks -Vincent > Thank you, > Giordano. > > 2015-12-23 6:51 GMT+01:00 Marius Dumitru Florea < > mariusdumitru.florea@xwiki.com(mailto:mariusdumitru.florea@xwiki.com)>: > > > On Wed, Dec 23, 2015 at 12:30 AM, Ludovic Dubost > > wrote: > > > > > Isn't the problem that it should be > > > > > > #if("$!request.evolver" == "1") > > > > > > And not > > > > > > > > > > > #if("$!request.evolver" == 1) > > > > > > > I thought so too but I tested and it works. I checked the Velocity > > documentation [1] and the explanation is: > > > > "In the last case (when objects are of different classes), the toString() > > method is called on each object and the resulting Strings are compared." > > > > Thanks, > > Marius > > > > [1] > > > > https://click.apache.org/docs/velocity/vtl-reference-guide.html##if/#elseif… > > > > > > > > > > Ludo > > > Le 22 déc. 2015 21:32, "Giordano Ninonà" a > > > écrit : > > > > > > > Dear Vincent, > > > > > > > > Tank you for your reply, I would try what you suggested in the > > afternoon, > > > > but regarding the "evolver=1 request param", I've set it equal to 1 > > > > together with POST command in order to make it always true ensuring > > that > > > my > > > > component is started every time. My thoughts were wrong? > > > > > > > > Giordano. > > > > > > > > 2015-12-22 11:31 GMT+01:00 vincent@massol.net(mailto:vincent@massol.net) : > > > > > > > > > Hi Giordano, > > > > > > > > > > On 21 Dec 2015 at 15:20:55, Giordano Ninonà ( > > giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com) > > > > > (mailto:giordano.ninona@gmail.com)) wrote: > > > > > > > > > > > Hi users, > > > > > > > > > > > > My project in XWiki consists in a java component which offers some > > > APIs > > > > > > through a script service called by a Velocity script in a wiki > > page. > > > > > > > > > > > > I put my .jar in the directory C:\XWiki Enterprise > > > > > > 7.3\*webapps\xwiki\WEB-INF\lib > > > > > > *and this is the Velocity and HTML code that I've put in my XWiki > > > page: > > > > > > > > > > > > {{velocity}} > > > > > > #if("$!request.evolver" == 1) > > > > > > ## Request for creating a new instance > > > > > > $services.pars.parse() > > > > > > $services.evo.removeInstance("Take bike") > > > > > > $response.sendRedirect($xwiki.getURL('Main.WebHome')) > > > > > > ## Stop processing, since we already sent a redirect. > > > > > > #stop > > > > > > #end > > > > > > > > > > [snip] > > > > > > > > > > > Let first say that nothing is happening when I click on the > > "Evolve" > > > > > button > > > > > > and I don't know why...it looks like it should work, also because > > > > > creating > > > > > > a Main_test class in Eclipse, I can run my software calling exactly > > > the > > > > > > same methods and it works! > > > > > > > > > > You could use GET instead of POST and see what you get in the URL (ie > > > > > whether you get the evolver=1 request param). > > > > > > > > > > > Moreover my component must create some files to store some > > > information, > > > > > > thus I am wondering where to save those files in order to make them > > > > > > accessible by the component. > > > > > > > > > > You can use the XWiki’s permanent directory. > > > > > > > > > > See > > > > > > > > http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module > > > > > > > > > > Thanks > > > > > -Vincent > > > > > > > > > > > Any suggestions? > > > > > > > > > > > > Thanks in advance, > > > > > > Giordano. > > > > > > > > > _______________________________________________ > > > > users mailing list > > > > users@xwiki.org(mailto:users@xwiki.org) > > > > http://lists.xwiki.org/mailman/listinfo/users > > > > > > > _______________________________________________ > > > users mailing list > > > users@xwiki.org(mailto:users@xwiki.org) > > > http://lists.xwiki.org/mailman/listinfo/users > > > > > _______________________________________________ > > users mailing list > > users@xwiki.org(mailto:users@xwiki.org) > > http://lists.xwiki.org/mailman/listinfo/users > > > _______________________________________________ > users mailing list > users@xwiki.org(mailto:users@xwiki.org) > http://lists.xwiki.org/mailman/listinfo/users

Giordano Ninonà

5:07 p.m.

Hi Vincent, I've solved the "save files" problem with absolute paths and it works, however I've another problem, this time with the Velocity macro inside a wiki page. This is the exception that I've got: *org.xwiki.rendering.macro.MacroExecutionException: Failed to evaluate Velocity Macro for content [#if("$!request.evolver" == 1) ## Request for creating a new instance ##$services.evoS.parseBPXML('Home','BSS Rome') $services.evoS.removeInstance('Take bike') ##$response.sendRedirect($xwiki.getURL('Main.WebHome')) #else #end {{html}} <form action="" id="newEvolution" method="POST"> <div> <input type="hidden" name="evolver" value="1"/> <span class="buttonwrapper"> <input type="submit" value="Evolve" class="button"/> </span> </div> </form> {{/html}}] at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:131) at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:50) at org.xwiki.rendering.macro.script.AbstractScriptMacro.evaluateBlock(AbstractScriptMacro.java:286) at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:182) at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:58) at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transform(MacroTransformation.java:269) at org.xwiki.rendering.internal.transformation.DefaultRenderingContext.transformInContext(DefaultRenderingContext.java:183) at org.xwiki.rendering.internal.transformation.DefaultTransformationManager.performTransformations(DefaultTransformationManager.java:95) at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:253) at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:126) at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:56) at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:96) at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:39) at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:113) at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:50) at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:68) at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:42) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1164) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1127) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1179) at com.xpn.xwiki.api.Document.getRenderedContent(Document.java:692) at sun.reflect.GeneratedMethodAccessor403.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280) at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567) at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)* *...etc etc* You can find in the attachments the Tree structure of my wiki, pages inside "BSS Rome" space are all terminal pages. Thank you for your help, Giordano. 2015-12-26 13:03 GMT+01:00 vincent(a)massol.net <vincent(a)massol.net>et>:

...

Hi Giordano, On 23 Dec 2015 at 19:40:11, Giordano Ninonà (giordano.ninona(a)gmail.com (mailto:giordano.ninona@gmail.com)) wrote:

Thanks Vincent, I found everything I need but I got a nullpointer exeptioneverytime I

use the environment.getTemporaryDirectory() method in my code.

I thought it could be the component manager, so I've tried to inizialize

it but I got an error every time I call the method "initialize()", as suggested in [1] and [2]. If you’re deploying your component inside an XWiki you don’t need to initialize the CM, this is done for you by XWiki. A NPE means you’re missing an @Inject and thus the Environment instance is null. Could you show us your code? Thanks -Vincent

Any ideas why it is not working? Thanks, Giordano [1]

http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module

[2]

http://extensions.xwiki.org/xwiki/bin/view/Extension/Component+Module#HComp…

2015-12-23 16:59 GMT+01:00 vincent@massol.net(mailto:vincent@massol.net)

> > > On 23 Dec 2015 at 16:56:20, Giordano Ninonà (giordano.ninona(a)gmail.com

(mailto:giordano.ninona@gmail.com)(mailto:giordano.ninona@gmail.com)) wrote:

> > > Hi users, > > > > Thanks for your answers, anyway it wasn't a String problem, and also

change

> > to GET doesn't produce anything. Maybe I've found my problem, when I

start

> > my component, the very first thing to do is to parse an XML file

thus my

> > script service provide a "parseBPXML()" method. The problem is where

can i

> > store this file in order to make accessible by my component, I've

already

> > Injected the Environment component but I can't understand where to

put my

> > file (i.e. which is the "permanent directory") and how to access it. > > Check your xwiki.properties file and search for permanentDirectory. > > Thanks > -Vincent > > > Thank you, > > Giordano. > > > > 2015-12-23 6:51 GMT+01:00 Marius Dumitru Florea < > > mariusdumitru.florea@xwiki.com(mailto:mariusdumitru.florea@xwiki.com

)>:

> > > > > On Wed, Dec 23, 2015 at 12:30 AM, Ludovic Dubost > > > wrote: > > > > > > > Isn't the problem that it should be > > > > > > > > #if("$!request.evolver" == "1") > > > > > > > > And not > > > > > > > > > > > > > > > #if("$!request.evolver" == 1) > > > > > > > > > > I thought so too but I tested and it works. I checked the Velocity > > > documentation [1] and the explanation is: > > > > > > "In the last case (when objects are of different classes), the

toString()

> > > method is called on each object and the resulting Strings are

compared."

> > > > > > Thanks, > > > Marius > > > > > > [1] > > > > > >

https://click.apache.org/docs/velocity/vtl-reference-guide.html##if/#elseif…

> > > > > > > > > > > > > > Ludo > > > > Le 22 déc. 2015 21:32, "Giordano Ninonà" a > > > > écrit : > > > > > > > > > Dear Vincent, > > > > > > > > > > Tank you for your reply, I would try what you suggested in the > > > afternoon, > > > > > but regarding the "evolver=1 request param", I've set it equal

to 1

> > > > > together with POST command in order to make it always true

ensuring

> > > that > > > > my > > > > > component is started every time. My thoughts were wrong? > > > > > > > > > > Giordano. > > > > > > > > > > 2015-12-22 11:31 GMT+01:00 vincent(a)massol.net(mailto:

vincent(a)massol.net) :

> > > > > > > > > > > Hi Giordano, > > > > > > > > > > > > On 21 Dec 2015 at 15:20:55, Giordano Ninonà ( > > > giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com) > > > > > > (mailto:giordano.ninona@gmail.com)) wrote: > > > > > > > > > > > > > Hi users, > > > > > > > > > > > > > > My project in XWiki consists in a java component which

offers some

> > > > APIs > > > > > > > through a script service called by a Velocity script in a

wiki

> > > page. > > > > > > > > > > > > > > I put my .jar in the directory C:\XWiki Enterprise > > > > > > > 7.3\*webapps\xwiki\WEB-INF\lib > > > > > > > *and this is the Velocity and HTML code that I've put in

my XWiki

> > > > page: > > > > > > > > > > > > > > {{velocity}} > > > > > > > #if("$!request.evolver" == 1) > > > > > > > ## Request for creating a new instance > > > > > > > $services.pars.parse() > > > > > > > $services.evo.removeInstance("Take bike") > > > > > > > $response.sendRedirect($xwiki.getURL('Main.WebHome')) > > > > > > > ## Stop processing, since we already sent a redirect. > > > > > > > #stop > > > > > > > #end > > > > > > > > > > > > [snip] > > > > > > > > > > > > > Let first say that nothing is happening when I click on the > > > "Evolve" > > > > > > button > > > > > > > and I don't know why...it looks like it should work, also

because

> > > > > > creating > > > > > > > a Main_test class in Eclipse, I can run my software

calling exactly

> > > > the > > > > > > > same methods and it works! > > > > > > > > > > > > You could use GET instead of POST and see what you get in

the URL (ie

> > > > > > whether you get the evolver=1 request param). > > > > > > > > > > > > > Moreover my component must create some files to store some > > > > information, > > > > > > > thus I am wondering where to save those files in order to

make them

> > > > > > > accessible by the component. > > > > > > > > > > > > You can use the XWiki’s permanent directory. > > > > > > > > > > > > See > > > > > > > > > >

http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module

> > > > > > > > > > Thanks > > > > > -Vincent > > > > > > > > > > > Any suggestions? > > > > > > > > > > > > Thanks in advance, > > > > > > Giordano. > > > > > > > > > _______________________________________________ > > > > users mailing list > > > > users@xwiki.org(mailto:users@xwiki.org) > > > > http://lists.xwiki.org/mailman/listinfo/users > > > > > > > _______________________________________________ > > > users mailing list > > > users@xwiki.org(mailto:users@xwiki.org) > > > http://lists.xwiki.org/mailman/listinfo/users > > > > > _______________________________________________ > > users mailing list > > users@xwiki.org(mailto:users@xwiki.org) > > http://lists.xwiki.org/mailman/listinfo/users > > > _______________________________________________ > users mailing list > users@xwiki.org(mailto:users@xwiki.org) > http://lists.xwiki.org/mailman/listinfo/users

Giordano Ninonà

5:13 p.m.

Moreover the command prompt tell me that there is an invalid schema name, in this case "Home", but that is the name of my wiki.... If I use the alias of my wiki (localhost) I get the same error. Giordano. 2015-12-26 17:07 GMT+01:00 Giordano Ninonà <giordano.ninona(a)gmail.com>om>:

...

Hi Giordano, On 23 Dec 2015 at 19:40:11, Giordano Ninonà (giordano.ninona(a)gmail.com (mailto:giordano.ninona@gmail.com)) wrote:

Thanks Vincent, I found everything I need but I got a nullpointer exeptioneverytime I

use the environment.getTemporaryDirectory() method in my code.

I thought it could be the component manager, so I've tried to

inizialize it but I got an error every time I call the method "initialize()", as suggested in [1] and [2]. If you’re deploying your component inside an XWiki you don’t need to initialize the CM, this is done for you by XWiki. A NPE means you’re missing an @Inject and thus the Environment instance is null. Could you show us your code? Thanks -Vincent

Any ideas why it is not working? Thanks, Giordano [1]

http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module

[2]

http://extensions.xwiki.org/xwiki/bin/view/Extension/Component+Module#HComp…

2015-12-23 16:59 GMT+01:00 vincent@massol.net(mailto:vincent@massol.net)

> > > On 23 Dec 2015 at 16:56:20, Giordano Ninonà (

giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com)(mailto: giordano.ninona(a)gmail.com)) wrote:

> > > Hi users, > > > > Thanks for your answers, anyway it wasn't a String problem, and

also change

> > to GET doesn't produce anything. Maybe I've found my problem, when

I start

> > my component, the very first thing to do is to parse an XML file

thus my

> > script service provide a "parseBPXML()" method. The problem is

where can i

> > store this file in order to make accessible by my component, I've

already

> > Injected the Environment component but I can't understand where to

put my

mariusdumitru.florea(a)xwiki.com)>gt;:

toString()

> > > method is called on each object and the resulting Strings are

compared."

> > > > > > Thanks, > > > Marius > > > > > > [1] > > > > > >

https://click.apache.org/docs/velocity/vtl-reference-guide.html##if/#elseif… <https://click.apache.org/docs/velocity/vtl-reference-guide.html#%23if/%23elseif/%23else%20-%20Output%20conditional%20on%20truth%20of%20statements(https://click.apache.org/docs/velocity/vtl-reference-guide.html%23%23if/%23elseif/%23else%20-%20Output%20conditional%20on%20truth%20of%20statements)>

equal to 1

> > > > > together with POST command in order to make it always true

ensuring

> > > that > > > > my > > > > > component is started every time. My thoughts were wrong? > > > > > > > > > > Giordano. > > > > > > > > > > 2015-12-22 11:31 GMT+01:00 vincent(a)massol.net(mailto:

vincent(a)massol.net) :

offers some

> > > > APIs > > > > > > > through a script service called by a Velocity script in a

wiki

my XWiki

the

> > > "Evolve" > > > > > > button > > > > > > > and I don't know why...it looks like it should work, also

because

> > > > > > creating > > > > > > > a Main_test class in Eclipse, I can run my software

calling exactly

> > > > the > > > > > > > same methods and it works! > > > > > > > > > > > > You could use GET instead of POST and see what you get in

the URL (ie

make them

> > > > > > > accessible by the component. > > > > > > > > > > > > You can use the XWiki’s permanent directory. > > > > > > > > > > > > See > > > > > > > > > >

http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module

vincent＠massol.net

3 Jan 3 Jan

3:32 p.m.

Hi Giordano, You’ve chopped off the root error in the stack trace below so it’s hard to help you with your velocity error. Thanks -Vincent On 26 Dec 2015 at 17:07:25, Giordano Ninonà (giordano.ninona(a)gmail.com) wrote: Hi Vincent, I've solved the "save files" problem with absolute paths and it works, however I've another problem, this time with the Velocity macro inside a wiki page. This is the exception that I've got: org.xwiki.rendering.macro.MacroExecutionException: Failed to evaluate Velocity Macro for content [#if("$!request.evolver" == 1) ## Request for creating a new instance ##$services.evoS.parseBPXML('Home','BSS Rome') $services.evoS.removeInstance('Take bike') ##$response.sendRedirect($xwiki.getURL('Main.WebHome')) #else #end {{html}} <form action="" id="newEvolution" method="POST"> <div> <input type="hidden" name="evolver" value="1"/> <span class="buttonwrapper"> <input type="submit" value="Evolve" class="button"/> </span> </div> </form> {{/html}}] at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:131) at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:50) at org.xwiki.rendering.macro.script.AbstractScriptMacro.evaluateBlock(AbstractScriptMacro.java:286) at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:182) at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:58) at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transform(MacroTransformation.java:269) at org.xwiki.rendering.internal.transformation.DefaultRenderingContext.transformInContext(DefaultRenderingContext.java:183) at org.xwiki.rendering.internal.transformation.DefaultTransformationManager.performTransformations(DefaultTransformationManager.java:95) at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:253) at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:126) at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:56) at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:96) at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:39) at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:113) at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:50) at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:68) at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:42) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1164) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1127) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1179) at com.xpn.xwiki.api.Document.getRenderedContent(Document.java:692) at sun.reflect.GeneratedMethodAccessor403.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280) at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567) at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71) ...etc etc You can find in the attachments the Tree structure of my wiki, pages inside "BSS Rome" space are all terminal pages. Thank you for your help, Giordano. 2015-12-26 13:03 GMT+01:00 vincent(a)massol.net <vincent(a)massol.net>et>: Hi Giordano, On 23 Dec 2015 at 19:40:11, Giordano Ninonà (giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com)) wrote:

...

Any ideas why it is not working? Thanks, Giordano [1] http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module [2] http://extensions.xwiki.org/xwiki/bin/view/Extension/Component+Module#HComp… 2015-12-23 16:59 GMT+01:00 vincent@massol.net(mailto:vincent@massol.net) : > > > On 23 Dec 2015 at 16:56:20, Giordano Ninonà (giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com)(mailto:giordano.ninona@gmail.com)) wrote: > > > Hi users, > > > > Thanks for your answers, anyway it wasn't a String problem, and also change > > to GET doesn't produce anything. Maybe I've found my problem, when I start > > my component, the very first thing to do is to parse an XML file thus my > > script service provide a "parseBPXML()" method. The problem is where can i > > store this file in order to make accessible by my component, I've already > > Injected the Environment component but I can't understand where to put my > > file (i.e. which is the "permanent directory") and how to access it. > > Check your xwiki.properties file and search for permanentDirectory. > > Thanks > -Vincent > > > Thank you, > > Giordano. > > > > 2015-12-23 6:51 GMT+01:00 Marius Dumitru Florea < > > mariusdumitru.florea@xwiki.com(mailto:mariusdumitru.florea@xwiki.com)>: > > > > > On Wed, Dec 23, 2015 at 12:30 AM, Ludovic Dubost > > > wrote: > > > > > > > Isn't the problem that it should be > > > > > > > > #if("$!request.evolver" == "1") > > > > > > > > And not > > > > > > > > > > > > > > > #if("$!request.evolver" == 1) > > > > > > > > > > I thought so too but I tested and it works. I checked the Velocity > > > documentation [1] and the explanation is: > > > > > > "In the last case (when objects are of different classes), the toString() > > > method is called on each object and the resulting Strings are compared." > > > > > > Thanks, > > > Marius > > > > > > [1] > > > > > > https://click.apache.org/docs/velocity/vtl-reference-guide.html##if/#elseif… > > > > > > > > > > > > > > Ludo > > > > Le 22 déc. 2015 21:32, "Giordano Ninonà" a > > > > écrit : > > > > > > > > > Dear Vincent, > > > > > > > > > > Tank you for your reply, I would try what you suggested in the > > > afternoon, > > > > > but regarding the "evolver=1 request param", I've set it equal to 1 > > > > > together with POST command in order to make it always true ensuring > > > that > > > > my > > > > > component is started every time. My thoughts were wrong? > > > > > > > > > > Giordano. > > > > > > > > > > 2015-12-22 11:31 GMT+01:00 vincent@massol.net(mailto:vincent@massol.net) : > > > > > > > > > > > Hi Giordano, > > > > > > > > > > > > On 21 Dec 2015 at 15:20:55, Giordano Ninonà ( > > > giordano.ninona@gmail.com(mailto:giordano.ninona@gmail.com) > > > > > > (mailto:giordano.ninona@gmail.com)) wrote: > > > > > > > > > > > > > Hi users, > > > > > > > > > > > > > > My project in XWiki consists in a java component which offers some > > > > APIs > > > > > > > through a script service called by a Velocity script in a wiki > > > page. > > > > > > > > > > > > > > I put my .jar in the directory C:\XWiki Enterprise > > > > > > > 7.3\*webapps\xwiki\WEB-INF\lib > > > > > > > *and this is the Velocity and HTML code that I've put in my XWiki > > > > page: > > > > > > > > > > > > > > {{velocity}} > > > > > > > #if("$!request.evolver" == 1) > > > > > > > ## Request for creating a new instance > > > > > > > $services.pars.parse() > > > > > > > $services.evo.removeInstance("Take bike") > > > > > > > $response.sendRedirect($xwiki.getURL('Main.WebHome')) > > > > > > > ## Stop processing, since we already sent a redirect. > > > > > > > #stop > > > > > > > #end > > > > > > > > > > > > [snip] > > > > > > > > > > > > > Let first say that nothing is happening when I click on the > > > "Evolve" > > > > > > button > > > > > > > and I don't know why...it looks like it should work, also because > > > > > > creating > > > > > > > a Main_test class in Eclipse, I can run my software calling exactly > > > > the > > > > > > > same methods and it works! > > > > > > > > > > > > You could use GET instead of POST and see what you get in the URL (ie > > > > > > whether you get the evolver=1 request param). > > > > > > > > > > > > > Moreover my component must create some files to store some > > > > information, > > > > > > > thus I am wondering where to save those files in order to make them > > > > > > > accessible by the component. > > > > > > > > > > > > You can use the XWiki’s permanent directory. > > > > > > > > > > > > See > > > > > > > > > > http://extensions.xwiki.org/xwiki/bin/view/Extension/Environment+Module > > > > > > > > > > > > Thanks > > > > > > -Vincent > > > > > > > > > > > > > Any suggestions? > > > > > > > > > > > > > > Thanks in advance, > > > > > > > Giordano. > > > > > >

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Giordano Ninonà
Ludovic Dubost
Marius Dumitru Florea
vincent＠massol.net