topic custom spring context loder in Alfresco Archive

custom spring context loder

activitinike — Mon, 09 May 2016 20:49:08 GMT

Hello,Please guide on setting custom spring context in activiti-app.war.In SericeTask javaDelegate, we have many dependencies to inject (RestTemplate, some DAO etc..)<context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/classes

Re: custom spring context loder

jbarrez — Tue, 10 May 2016 10:26:49 GMT

Which application are you talking about? Activiti 6? Enterprise?

Anyway, putting your configuration classes with the beans you want to expose in the component scanned packages should do the trick.

Re: custom spring context loder

activitinike — Tue, 10 May 2016 11:29:09 GMT

We are using Enterprise.
Do you mean xml based spring configuration will not work as web.xml not read and can't load spring configuration?

We use activiti-app.war and custom jar containing service tasks as java delegate which has dependencies of custom DAOs, RestTemplate and more…

Re: custom spring context loder

faizal-manan — Thu, 12 May 2016 14:14:25 GMT

what jbararez referring is your spring configuration (applicationContext.xml). In simple word, Spring can't find your ServiceTask and you need to tell Spring in which package your ServiceTask is located. You can use unit test (create new if not exists) to see either your applicationContext.xml properly configured or not.

Re: custom spring context loder

activitinike — Thu, 12 May 2016 15:56:08 GMT

Re: custom spring context loder

jbarrez — Wed, 18 May 2016 16:21:26 GMT

Question on Enterprise -> please use the Enterprise forum, hence my question.

The Enterprise version uses JavaConfig and no XML. Also the web.xml is bare minimum and only needed to bootup the Spring container. To add custom logic, use for example https://docs.alfresco.com/activiti/docs/dev-guide/1.4.0/#_spring_beans

Re: custom spring context loder

activitinike — Tue, 24 May 2016 19:16:10 GMT

Thanks Joram,

It works with https://docs.alfresco.com/activiti/docs/dev-guide/1.4.0/#_spring_beans

Is it possible to use our custom package instead of : com.activiti.extension.bean and com.activiti.extension.conf ?

I tried using custom packages with @ComponentScan annotation, but it always fails with:
<code> org.activiti.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier </code>

Thanks for any further assistance.

If possible, kindly move this topic to Enterprise forum please?

Re: custom spring context loder

jbarrez — Tue, 31 May 2016 10:19:35 GMT

Yes, simply add a new @Configuration in the .conf package that has a component scan for your custom packages.

Re: custom spring context loder

jonnyg — Tue, 31 May 2016 20:36:04 GMT

In other words, this is what we should do:

<java>
package com.sample.bpm.conf;

import com.sample.bpm.bean.SampleBean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

@Configuration
@ComponentScan(basePackageClasses={SampleConfig.class, SampleBean.class})
public class SampleConfig{
…
}

</java>

Re: custom spring context loder

jbarrez — Wed, 01 Jun 2016 16:37:36 GMT

Almost: the @Configuration bean should be be discoverable by the default component scan, so you need to put it in the com.activiti.extension.conf package.

The @ComponentScan on that bean can point to any of the packages you'd like to scan additionally.

Re: custom spring context loder

jonnyg — Wed, 01 Jun 2016 16:43:17 GMT

Thanks, that makes sense.
(Curious – what is it that kicks off the default component scan, telling it to look in com.activiti.extension.conf? e.g., is ActivitiEngineConfiguration special in any way?)

Re: custom spring context loder

jbarrez — Fri, 03 Jun 2016 07:59:35 GMT

No, nothing special about it, it could go into any configuration class actually, it wouldn't make a difference.

Re: custom spring context loder

activitinike — Fri, 03 Jun 2016 15:08:44 GMT

Thanks, now service task using spring bean works with custom package.

I tried to do the same with ServiceTask java which implements JavaDelegate, but it doesn't work. Is there a way?

Re: custom spring context loder

jbarrez — Mon, 20 Jun 2016 11:13:46 GMT

Did you add @Component to the javadelegate and gave it a name you reference in the process definition?