Invoke a Java class in portal_normal.vm

[Sam Wan, módosítva 14 év-val korábban]

Hi,

Can anyone tell me how to invoke a java class in portal_normal.vm or in any *.vm?

eg. in portal_normal.vm, I want to do something like this:

#set ($prodId = $MyProductUtil.getProductFirstId())
#set ($prodDesc = $MyProductUtil.getProductDesc($prodId))

<div><center>
Product ID: $prodId
Product desc: $prodDesc
</center></div>

In order to call MyProductUtil.class, how to configure liferay environment so that the reference of its class is found in portal_normal.vm file?

Thanks
Sam

[Mazhar Anwar, módosítva 14 év-val korábban]

You can achieve it by extending VelocityVariables.java in portal source.

[Shagul Khaja, módosítva 14 év-val korábban]

Hi Sam,

The below links may help.

http://www.liferay.com/community/forums/-/message_boards/message/3376997

http://www.liferay.com/community/wiki/-/wiki/Main/Access+to+Liferay+services+in+Velocity

If the servicelocator does not help, then you could look into the suggestion from Mazhar.

[Sam Wan, módosítva 14 év-val korábban]

Shagul Khaja:

Hi Sam,

The below links may help.

http://www.liferay.com/community/forums/-/message_boards/message/3376997

http://www.liferay.com/community/wiki/-/wiki/Main/Access+to+Liferay+services+in+Velocity

If the servicelocator does not help, then you could look into the suggestion from Mazhar.

The second link (ServiceLocator) might be something that I am looking for.
I think I can write something like this:

#set($myServiceUtil = $serviceLocator.findService("au.com.ip6.portal.service.MyServiceUtil"))

Product name: $myServiceUtil.getMyProductName(1)
Product Descriptoin: $myServiceUtil.getMyProductDesc(1)

Thanks very much for the reference.
I will try it out see if it works.

Thanks
Sam

[Vandana Chirame, módosítva 9 év-val korábban]

Can you please tell me

1. where to put java file in liferay theme and
2. how to use java methods in .vm file?

Thanks in advance.

[Vishal Patel, módosítva 9 év-val korábban]

Hi Vandana,

First of all there is no need to put any java file into themes.

To user any liferay services ,utilities OR custom services & utilities, Liferay provide $serviceLocator Util.

What $serviceLocator does?

It will search your service name into Liferay bean definitions & will try to locate defined bean for service which you have opted.

Like,

$userLocalUtil = $serviceLocator.findService("com.liferay.portal.service.UserLocalService"))

So this will find UserLocalServiceUtil & then you can use $userLocalUtil in theme like, $userLocalUtil .getUser(userId).

The same thing is happen with custom class. But remember your custom class (Services & Util ) must be register with Liferay Beans definitions.Otherwise, It will throw error like "No Such bean defination found".

In Theme ,

#set($myProductServiceUtil = $serviceLocator.findService("com.liferay.example.MyProductService"))
#set ($prodId = $myProductServiceUtil .getProductFirstId())





Hope you understand it.

[Vandana Chirame, módosítva 9 év-val korábban]

Can you please tell me in which file we can register Liferay Beans definitions.

[Mohamed Faisal, módosítva 9 év-val korábban]

Please refer below link
http://www.opensourceforlife.com/2012/06/custom-velocity-variable-in-liferay-61.html

Regards,
Faisal

[Jitendra Rajput, módosítva 9 év-val korábban]

You can add required logic in your custom portlets service class and access the same in velocity file.

Refer to below example for more information.

http://itsliferay.blogspot.in/2012/04/access-custom-portlet-service-in.html

[Vandana Chirame, módosítva 9 év-val korábban]

Thanks all...

@jitendra.. for your way also i need to make hook project?

[Jitendra Rajput, módosítva 9 év-val korábban]

Vandana Chirame:

@jitendra.. for your way also i need to make hook project?

Without creating hook also it will work. Move your portlet services to lib/ext and override property using portal-ext file.

If services are not associated with any portlet then you can create hook and inside that you can create services.

Thank you,
Jitendra

[Vandana Chirame, módosítva 9 év-val korábban]

Thank you so much

[Vandana Chirame, módosítva 9 év-val korábban]

But when using hook project run method of hook project continuously printing my sysouts... means run method calling frequentlly???. Is this effects performance??