How to call facade from the command

Question

In IBM WebSphere Commerce How the facade can be called from the command Instead of calling it from jsp. we call it from jsp like

<wcf:getData type="com.ibm.commerce.catalog.facade.datatypes.CatalogNavigationViewType" var="catalogNavigationView" 
            expressionBuilder="${navigationView}" varShowVerb="showCatalogNavigationView" 
            maxItems="${pageSize}" recordSetStartNumber="${WCParam.beginIndex}">
            <wcf:param name="searchProfile" value="${searchProfile}" />
            <wcf:param name="searchTerm" value="${newSearchTerm}" />
            <wcf:param name="intentSearchTerm" value="${intentSearchTerm}" />
            <wcf:param name="searchType" value="${searchType}" />
            <wcf:param name="searchSource" value="${WCParam.searchSource}" />
            <wcf:param name="metaData" value="${WCParam.metaData}" />
            <wcf:param name="orderBy" value="${WCParam.orderBy}" />
            <c:forEach var="facetValue" items="${param.facet}">
                <c:if test="${fn:contains(facetValue , '|')}">   
                    <c:set var="facetValue" value="${fn:replace(facetValue,'|',',')}"/>
                </c:if>
                <wcf:param name="facet" value="${facetValue}" />
            </c:forEach>
            <wcf:param name="advancedFacetList" value="${newAdvancedFacetList}"/>
            <wcf:param name="categoryId" value="${currentCategoryId}" />
            <wcf:param name="filterTerm" value="${newFilterTerm}" />
            <wcf:param name="filterType" value="${WCParam.filterType}" />
            <wcf:param name="filterFacet" value="${removeFacet}" />
            <wcf:param name="manufacturer" value="${newManufacturer}" />
            <wcf:param name="minPrice" value="${WCParam.minPrice}" />
            <wcf:param name="maxPrice" value="${WCParam.maxPrice}" />
            <wcf:contextData name="storeId" data="${WCParam.storeId}" />
            <wcf:contextData name="catalogId" data="${WCParam.catalogId}" />
        </wcf:getData>

This is how we can call it from jsp but I want to call this facade from the command (from the java code) Please give me any suggestion

Thanks Ankit

Answer 1

You can do it like this :

public someMethod(){
....
CatalogFacadeClient catalogFacadeClient = new CatalogFacadeClient(getBusinessContextType(), null);

GetType getVerb = CatalogFacadeClient.createGetVerb("_wcf:XPath", getXPathExpressionString());

ShowCatalogNavigationViewDataAreaType showDataArea = catalogFacadeClient.getCatalogNavigationView(getVerb);
response = showDataArea.getCatalogNavigationView();
....
}

 public String getXPathExpressionString() {

  StringBuffer expression = new StringBuffer();
  expression.append("{_wcf.ap='IBM_Store_CatalogEntrySearch';");
  expression.append("_wcf.search.term='" + toto+ "';");
  expression.append("_wcf.search.spellcheck='false';");
  expression.append("_wcf.search.type='1000';");
  expression.append("_wcf.search.source='Q'}");
  expression.append("/CatalogNavigationView");
return expression.toString();
}

protected BusinessContextType getBusinessContextType() {
  BusinessContextType businessContext = CommerceFoundationFactory.eINSTANCE.createBusinessContextType();
  ContextDataType storeId = CommerceFoundationFactory.eINSTANCE.createContextDataType();
  storeId.setName("storeId");
  storeId.setValue(currentStoreId);
  ContextDataType catalogId = CommerceFoundationFactory.eINSTANCE.createContextDataType();
  catalogId.setName("catalogId");
  catalogId.setValue(currentCatalogId);
  ContextDataType langIdContext = CommerceFoundationFactory.eINSTANCE.createContextDataType();
  langIdContext.setName("langId");
  langIdContext.setValue(langId.toString());
  businessContext.getContextData().add(storeId);
  businessContext.getContextData().add(catalogId);
  businessContext.getContextData().add(langIdContext);

  return businessContext;
}

Answer 2

Your code works!! Thank you so much!

Some Remarks about getXPathExpressionString() method:

1.- In order to prepare the expression builder correctly please check get-data-config.xml and get the expression builder by name. Name is the expressionBuilder param in wcf:getData

expressionBuilder="${navigationView}"


<wcf:getData type="com.ibm.commerce.catalog.facade.datatypes.CatalogNavigationViewType" var="catalogNavigationView" 
                expressionBuilder="${navigationView}" varShowVerb="showCatalogNavigationView" 
                maxItems="${pageSize}" recordSetStartNumber="${WCParam.beginIndex}">

Value of ${navigationView} is = "getCatalogNavigationView"

Search this value in get-data-config.xml file and look like this:

<expression-builder>
    <name>getCatalogNavigationView</name>
    <data-type-name>CatalogNavigationView</data-type-name>
    <expression-template>{_wcf.ap='$accessProfile$';_wcf.search.profile='$searchProfile$';_wcf.search.facet.field.limit='$facetLimit$';_wcf.search.term='$searchTerm$';_wcf.search.intent.term='$intentSearchTerm$';_wcf.search.originalterm='$originalSearchTerm$';_wcf.search.category='$categoryId$';_wcf.search.type='$searchType$';_wcf.search.exclude.term='$filterTerm$';_wcf.search.exclude.type='$filterType$';_wcf.search.manufacturer='$manufacturer$';_wcf.search.price.minimum='$minPrice$';_wcf.search.price.maximum='$maxPrice$';_wcf.search.facet='$facet$';_wcf.search.advanced.facet='$advancedFacetList$';_wcf.search.exclude.facet='$filterFacet$';_wcf.search.sort='$orderBy$';_wcf.search.meta='$metaData$';_wcf.search.source='$searchSource$';_wcf.search.store='$physicalStoreIds$'}/CatalogNavigationView</expression-template>
    <param>
        <name>accessProfile</name>
        <value>IBM_Store_CatalogEntrySearch</value>
    </param>
    <param>
        <name>searchType</name>
        <value>0</value>
    </param>
    <param>
        <name>searchSource</name>
        <value>O</value>
    </param>
    <param>
        <name>searchProfile</name>
        <value>IBM_findCatalogEntryByNameAndShortDescription</value>
    </param>
</expression-builder>

source: http://158.85.49.234/WEB-INF/config/com.ibm.commerce.catalog-fep/get-data-config.xml

So this tag : <expression-template> contains the treasure :), i.e the solr query expression.

2.- With this expression-template we could can create a correct expression:

public String getXPathExpressionString() throws JspException, AbstractBusinessObjectDocumentException {

        String expressionTemplate = "{_wcf.ap='$accessProfile$';_wcf.search.profile='$searchProfile$';_wcf.search.category='$categoryId$';_wcf.search.type='$searchType$';_wcf.search.sort='$orderBy$';_wcf.search.source='$searchSource$';_wcf.search.facet='$facet$';_wcf.search.exclude.facet='$filterFacet$';_wcf.search.meta='$metaData$';_wcf.search.price.minimum='$minPrice$';_wcf.search.price.maximum='$maxPrice$'}/CatalogNavigationView";

        ExpressionBuilderConfig expressionBuilderConfig = new ExpressionBuilderConfig();
        expressionBuilderConfig.setName("getCatalogNavigationView");
        expressionBuilderConfig.setDataTypeName("CatalogNavigationView");
        expressionBuilderConfig.setExpressionLanguage("_wcf:XPath");
        expressionBuilderConfig.setExpressionTemplate(expressionTemplate);

        HashMap<String,String[]> parameters = new HashMap<String, String[]>();
        parameters.put("accessProfile", new String[]{"IBM_Store_CatalogEntrySearch"});
        parameters.put("searchProfile", new String[]{"IBM_findCatalogEntryByNameAndShortDescription"});
        parameters.put("searchType", new String[]{"xyz"});
        parameters.put("categoryId",new String[]{ "123"});
        parameters.put("minPrice",new String[]{"0"});

        ExpressionType expressionType = expressionBuilderConfig.buildExpression(parameters);

        return expressionType.getValue();
     }

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This can be used to convert websphere ecommerce in a back-end or service provider. With that we can stop using jsp, scriplets, dojo 1.5 and use whatever in front-end layer like current js frameworks.