Create Custom Datahub extension erpproduct

[Former Member]

Hi All,

To create custom categories of product,I have created custom Datahub extension.Where I need to create custom Resolver to create custom categories in custom erpproduct target extension, which is extending standard category resolver i.e defaulltcategories. code is as below. package com.cgi.datahub.spel;

import java.util.ArrayList;

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import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Locale; import java.util.Map; import java.util.Optional;

import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Required; import org.springframework.core.convert.TypeDescriptor; import org.springframework.expression.AccessException; import org.springframework.expression.EvaluationContext; import org.springframework.expression.MethodExecutor; import org.springframework.expression.MethodResolver; import org.springframework.expression.TypedValue;

import com.hybris.datahub.model.CanonicalItem; import com.hybris.datahub.runtime.domain.DataHubPool; import com.hybris.datahub.service.CanonicalItemService; import com.hybris.datahub.saperpproduct.publication.DetermineSupercategories;

public class CategoryResolv extends DetermineSupercategories implements MethodResolver, MethodExecutor { private static final Logger LOGGER = LoggerFactory.getLogger(CategoryResolv.class); protected static final TypedValue NONE = new TypedValue(""); protected static TypedValue typedValue = new TypedValue(""); private static final String PRODH1 = "PRODH1"; protected CanonicalItemService canonicalItemService;

 @Override
 public TypedValue execute(final EvaluationContext ec, final Object target, final Object... args) throws AccessException
 {
     
     typedValue = super.execute(ec, target, args);
     if (args[0] == null)
     {
         return NONE;
     }
     LOGGER.info(" Excute Method of custom Resolv");
     final CanonicalItem item = (CanonicalItem) target;
     final DataHubPool pool = item.getDataPool();
     final Map<String, String> keys = new HashMap<>();
     
     String creationSystem = (String)item.getField("creationSystem");
     /*  49 */       String productID = (String)item.getField("productID");

     /*  54 */       keys.put("creationSystem", creationSystem);
     /*  55 */       keys.put("productID", productID);

     final CanonicalItem category = canonicalItemService.findLatestValidItem("CanonicalProductSales", keys, pool);
     if (category != null)
     {
         
         String category_str; 

// custom logic Object obj = typedValue.getValue(); ArrayList category_list=(ArrayList) obj;

          Iterator itr=brands.iterator();  
           while(itr.hasNext()){  
           category_list.add(category_str) ;  
           }
           
     final Object DeterminSupercategories = category_list ;
     LOGGER.info("Succesfully created categories.");
     
         return new TypedValue(DeterminSupercategories);
     }
     else
     {
         LOGGER.info("No Value found.");
     }
     return NONE;
 }

 @Override
 public MethodExecutor resolve(final EvaluationContext ec, final Object target, final String method, final List<TypeDescriptor> argumentTypes) throws AccessException
 {
     LOGGER.info(" Return Method of custom Resolv");
     if (!"CategoryResolv".equals(method))
     {
         return null;
     }
     if (Optional.ofNullable(argumentTypes) //
             .filter(list -> list.size() == 1) //
             .map(list -> list.get(0)) //
             .map(TypeDescriptor::getType) //
             .orElse(null) != String.class)
     {
         LOGGER.info(" Nullpoint Exception");
         return null;
     }
     if (Optional.ofNullable(target) //
             .filter(t -> t instanceof CanonicalItem) //
             .map(CanonicalItem.class::cast) //
             .map(item -> item.getAttributeDefinition(PRODH1))//
             .map(o -> o.orNull()).orElse(null) == null)
     {
         LOGGER.info(" Nullpoint Exception");
         return null;
     }
     LOGGER.info("True from Resolv");
     return this;
 }

 @Required
 public void setCanonicalItemService(final CanonicalItemService canonicalItemService)
 {
     this.canonicalItemService = canonicalItemService;
 }

}

In target extension their is no any spring file so how to define bean for this? As this java class is depend on standard DetermineSupercategories how to provide this dependancy?

I create spring.xml mannualy in custom erpproduct extension aand added below code

 </bean>
 
 </beans>

Provided corresponding Standard extension(saperpproduct raw/canonical/target) dependencies in each (Raw,canonical,target)extension.xml and sapidocintegration dependancy as well.

Also I have added below code in pom.xml of erpproduct extension com.hybris.datahub datahub-rest-client ${datahub.version} test

         <dependency>
             <groupId>com.hybris.datahub</groupId>
             <artifactId>datahub-extension-sdk</artifactId>
             <version>6.5.0.3-RC2</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
                     <groupId>com.hybris.datahub</groupId>
                     <artifactId>datahub-core-export-service</artifactId>
                     <version>${datahub.version}</version>
                     <scope>provided</scope>
                 </dependency>
                 <dependency>
                         <groupId>com.hybris.datahub</groupId>
                     <artifactId>datahub-webapp</artifactId>
                     <version>${datahub.version}</version>
                     <type>war</type>
                     <scope>provided</scope>
                 </dependency>
                 <dependency>
                     <groupId>com.hybris.datahub</groupId>
                     <artifactId>sapcoreconfiguration</artifactId>
                     <version>${sap.datahub.version}</version>
                 </dependency>
                 <dependency>
                     <groupId>com.hybris.datahub</groupId>
                     <artifactId>sapidocintegration</artifactId>
                     <version>${sap.datahub.version}</version>
                 </dependency>
                 <dependency>
                     <groupId>com.hybris.datahub</groupId>
                     <artifactId>sapidocoutboundadapter</artifactId>
                     <version>${sap.datahub.version}</version>
                 </dependency>
                 <dependency>
                     <groupId>com.hybris.datahub</groupId>
                     <artifactId>saperpproduct-raw</artifactId>
                     <version>${sap.datahub.version}</version>
                 </dependency>
                 <dependency>
                     <groupId>com.hybris.datahub</groupId>
                     <artifactId>saperpproduct-canonical</artifactId>
                     <version>${sap.datahub.version}</version>
                 </dependency>
                 <dependency>
                     <groupId>com.hybris.datahub</groupId>
                     <artifactId>saperpproduct-target</artifactId>
                     <version>${sap.datahub.version}</version>
                 </dependency>

for dependancy.

but still I am getting below error

link text

[Former Member · Accepted solution]

You can create spring file under custom target extension in same location of datahub xml (customsaperpproduct-target-datahub-extension-spring.xml).

• add below line in spring file

      <bean id="customSapDetermineSupercategories" class="com.cgi.datahub.spel.CategoryResolv" parent="sapDetermineSupercategories"/>
  
  

  • add dependency in target datahub xml file. Some thing like

       <dependencies>
                 <dependency>
                     <extension>customsaperpproduct-canonical</extension>
                 </dependency>
                 <dependency>
                     <extension>saperpproduct-target</extension>
                 </dependency>
             </dependencies>
     
    
    

[Former Member · Accepted solution]

Extension got uploaded successfully.But when I try to replicate data I found below error link text

[Former Member · Accepted solution]

I'm not sure your class will execute. Check the screen shot and - how did you get brands to iterate ? - why do you need empty strings to array list

If this was not complete code can you attach source code .

• are you trying to add argument values to category list returned from super class ?

[Former Member · Accepted solution]

Please find below for complete code. link text