AEM 6510 - Assets Admin Search Rail Predicate to search based on Partial Filename, Case Ignored

Solution

<?xml version="1.0" encoding="UTF-8"?>
<jcr:root xmlns:cq="http://www.day.com/jcr/cq/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0" xmlns:nt="http://www.jcp.org/jcr/nt/1.0"
    jcr:primaryType="cq:Page">
<adminui/>
<search jcr:primaryType="nt:unstructured">
<facets jcr:primaryType="nt:unstructured">
<formbuilderconfig jcr:primaryType="nt:unstructured">
<predicatetypes jcr:primaryType="nt:unstructured">
<items jcr:primaryType="nt:unstructured">
<eaemignorecasenodename
                            jcr:primaryType="nt:unstructured"
                            fieldLabel="Filename"
                            fieldPropResourceType="/apps/eaem-search-form-nodename-predicate/nodename-field"
                            fieldResourceType="/apps/eaem-search-form-nodename-predicate/nodename-predicate"
                            fieldTitle="Experience AEM Filename Predicate"
                            fieldViewResourceType="granite/ui/components/foundation/form/textfield"
                            renderType="text"/>
</items>
</predicatetypes>
</formbuilderconfig>
</facets>
</search>
</jcr:root>

<%@include file="/libs/granite/ui/global.jsp" %>
<%@ page session="false" contentType="text/html" pageEncoding="utf-8"
         import="com.adobe.granite.ui.components.Config" %>

<%
    String key = resource.getName();
    String metaType = "eaemignorecasenodename";

    String fieldLabel = i18n.get("Filename");
%>

<input type="hidden" name="<%= xssAPI.encodeForHTMLAttr("./items/" + key) %>">
<input type="hidden" name="<%= xssAPI.encodeForHTMLAttr("./items/" + key + "/jcr:primaryType") %>" value="nt:unstructured">
<input type="hidden" name="<%= xssAPI.encodeForHTMLAttr("./items/" + key + "/sling:resourceType") %>" value="/apps/eaem-search-form-nodename-predicate/nodename-predicate">
<input type="hidden" name="<%= xssAPI.encodeForHTMLAttr("./items/" + key + "/fieldLabel") %>" value="<%= fieldLabel %>">
<input type="hidden" name="<%= xssAPI.encodeForHTMLAttr("./items/" + key + "/metaType") %>" value="<%= metaType %>">

<div><h3><%= i18n.get("Filename predicate")%></h3></div>

<% request.setAttribute ("com.adobe.cq.datasource.fieldtextplaceholder", i18n.get("Filename"));%>

<sling:include resource="<%= resource %>" resourceType="dam/gui/coral/components/admin/customsearch/formbuilder/predicatefieldproperties/fieldlabelpropertyfield"/>

<sling:include resource="<%= resource %>" resourceType="granite/ui/components/foundation/form/formbuilder/formfieldproperties/titlefields"/>

<sling:include resource="<%= resource %>" resourceType="granite/ui/components/foundation/form/formbuilder/formfieldproperties/deletefields"/>

<%@include file="/libs/granite/ui/global.jsp" %>
<%@ page session="false" contentType="text/html" pageEncoding="utf-8"
           import="com.adobe.granite.ui.components.Config"%>
<%@ page import="com.adobe.granite.ui.components.AttrBuilder" %>

<%
    Config cfg = new Config(resource);
    String name = cfg.get("text", i18n.get("Property"));
    String metaType = cfg.get("metaType", "eaemignorecasenodename");

    boolean foldableOpen = cfg.get("open", true);
    String selected = foldableOpen ? "selected":"";

    AttrBuilder inputAttrs = new AttrBuilder(request, xssAPI);
    inputAttrs.add("type", "text");
    inputAttrs.add("name", metaType);
    inputAttrs.addClass("coral-Form-field coral-Textfield coral-DecoratedTextfield-input");
    inputAttrs.add("placeholder", "Partial or full name, any case...");
%>
<coral-accordion variant="large">
<coral-accordion-item "<%=selected%>" data-metaType="checkboxgroup" data-type="eaemignorecasenodename">
<coral-accordion-item-label><%= xssAPI.encodeForHTML(name) %></coral-accordion-item-label>
<coral-accordion-item-content class="coral-Form coral-Form--vertical">
<input <%=inputAttrs.build()%>>
</coral-accordion-item-content>
</coral-accordion-item>
</coral-accordion>

package apps.experienceaem.assets;

import com.day.cq.search.Predicate;
import com.day.cq.search.eval.AbstractPredicateEvaluator;
import com.day.cq.search.eval.EvaluationContext;
import com.day.cq.search.eval.JcrPropertyPredicateEvaluator;
import org.apache.commons.lang3.StringUtils;
import org.osgi.service.component.annotations.Component;

@Component(
        factory = "com.day.cq.search.eval.PredicateEvaluator/eaemignorecasenodename"
)
public class IgnoreCaseNodeNamePredicateEvaluator extends AbstractPredicateEvaluator {
    public String getXPathExpression(Predicate predicate, EvaluationContext context) {
        String value = predicate.get(predicate.getName());

        if(StringUtils.isEmpty(value)){
            return null;
        }

        return "jcr:like(fn:lower-case(fn:name()), '%" + value.toLowerCase() + "%')";
    }
}