Filter Experts by Category

src/main/java/org/jlab/dtm/business/session/SystemFacade.java

@@ -192,8 +192,9 @@ public SystemEntity findWithExpertList(BigInteger systemId) {
   }
 
   @PermitAll
-  public List<SystemEntity> findAllWithExpertList() {
-    List<SystemEntity> systemList = this.findByComponentCategoryAndSystem(null, null, null, null);
+  public List<SystemEntity> findAllWithExpertList(BigInteger categoryId) {
+    List<SystemEntity> systemList =
+        this.findByComponentCategoryAndSystem(null, categoryId, null, null);
 
     for (SystemEntity s : systemList) {
       JPAUtil.initialize(s.getSystemExpertList());

src/main/java/org/jlab/dtm/presentation/controller/reports/ExpertReport.java

@@ -7,9 +7,13 @@
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import java.io.IOException;
+import java.math.BigInteger;
 import java.util.List;
+import org.jlab.dtm.business.session.CategoryFacade;
 import org.jlab.dtm.business.session.SystemFacade;
+import org.jlab.dtm.persistence.entity.Category;
 import org.jlab.dtm.persistence.entity.SystemEntity;
+import org.jlab.smoothness.presentation.util.ParamConverter;
 
 /**
  * @author ryans
@@ -18,6 +22,7 @@
     name = "ExpertReport",
     urlPatterns = {"/reports/expert"})
 public class ExpertReport extends HttpServlet {
+  @EJB CategoryFacade categoryFacade;
   @EJB SystemFacade systemFacade;
 
   /**
@@ -32,8 +37,25 @@ public class ExpertReport extends HttpServlet {
   protected void doGet(HttpServletRequest request, HttpServletResponse response)
       throws ServletException, IOException {
 
-    List<SystemEntity> systemList = systemFacade.findAllWithExpertList();
+    Category selectedCategory = null;
 
+    BigInteger categoryId = ParamConverter.convertBigInteger(request, "category");
+
+    if (categoryId != null) {
+      selectedCategory = categoryFacade.find(categoryId);
+    }
+
+    List<Category> categoryList = categoryFacade.findAlphaCategoryList();
+    List<SystemEntity> systemList = systemFacade.findAllWithExpertList(categoryId);
+
+    String selectionMessage = "All Experts";
+
+    if (selectedCategory != null) {
+      selectionMessage = "Category \"" + selectedCategory.getName() + "\"";
+    }
+
+    request.setAttribute("selectionMessage", selectionMessage);
+    request.setAttribute("categoryList", categoryList);
     request.setAttribute("systemList", systemList);
 
     getServletConfig()

src/main/webapp/WEB-INF/views/reports/expert.jsp

@@ -12,7 +12,35 @@
     </jsp:attribute>        
     <jsp:body>
         <section>
-            <h2><c:out value="${title}"/></h2>
+            <s:filter-flyout-widget>
+                <form class="filter-form" method="get" action="expert">
+                    <div id="filter-form-panel">
+                        <fieldset>
+                            <legend>Taxonomy</legend>
+                            <ul class="key-value-list">
+                                <li>
+                                    <div class="li-key">
+                                        <label for="category">Category</label>
+                                    </div>
+                                    <div class="li-value">
+                                        <select id="category" name="category">
+                                            <option value=""> </option>
+                                            <c:forEach items="${categoryList}" var="category">
+                                                <option value="${category.categoryId}" ${category.categoryId eq param.category ? 'selected="selected"' : ''}><c:out value="${category.name}"/></option>
+                                            </c:forEach>
+                                        </select>
+                                    </div>
+                                </li>
+                            </ul>
+                        </fieldset>
+                    </div>
+                    <input class="filter-form-submit-button" type="submit" value="Apply"/>
+                </form>
+            </s:filter-flyout-widget>
+            <h2 class="page-header-title"><c:out value="${title}"/></h2>
+            <div class="message-box">
+                <c:out value="${selectionMessage}"/>
+            </div>
             <div>                  
                 <c:forEach items="${systemList}" var="system">
                     <h3><c:out value="${system.name}"/></h3>