add filter

src/main/java/ru/ulstu/paper/controller/PaperStatusConverter.java

@@ -16,6 +16,6 @@ public class PaperStatusConverter implements Converter {
 
     @Override
     public String getAsString(FacesContext context, UIComponent component, Object value) {
-        return ((Paper.PaperStatus) value).name();
+        return value == null ? "" : ((Paper.PaperStatus) value).name();
     }
 }

src/main/java/ru/ulstu/paper/controller/PapersView.java

@@ -7,6 +7,7 @@ import javax.annotation.PostConstruct;
 import javax.faces.view.ViewScoped;
 import javax.inject.Inject;
 import javax.inject.Named;
+import java.util.Arrays;
 import java.util.List;
 
 @Named
@@ -22,6 +23,10 @@ public class PapersView {
         papers = paperService.findAll();
     }
 
+    public List<Paper.PaperStatus> getPaperStatuses() {
+        return Arrays.asList(Paper.PaperStatus.values());
+    }
+
     public List<Paper> getPapers() {
         return papers;
     }

src/main/resources/META-INF/resources/paper/papers.xhtml

@@ -5,14 +5,36 @@
       xmlns:h="http://xmlns.jcp.org/jsf/html" xmlns:f="http://xmlns.jcp.org/jsf/core">
 <ui:composition template="/basicTemplate.xhtml">
     <ui:define name="content">
-        <p:dataTable value="#{papersView.papers}" var="paper" paginator="true" rows="10">
-            <p:column headerText="Название">
+        <style>
+            .ui-datatable .ui-datatable-header {
+                text-align: right !important;
+            }
+        </style>
+        <p:dataTable value="#{papersView.papers}" var="paper" paginator="true" rows="10" id="papersTable"
+                     widgetVar="papersTable" emptyMessage="Не найдено подходящих статей">
+            <f:facet name="header">
+                <p:outputPanel>
+                    <h:outputText value="Поиск:"/>
+                    <p:inputText id="globalFilter" onkeyup="PF('papersTable').filter()" style="width:150px"
+                                 placeholder="Строка поиска..."/>
+                </p:outputPanel>
+            </f:facet>
+            <p:column headerText="Название" filterBy="#{paper.title}" filterMatchMode="contains">
                 <h:outputLink value="/paper/paper.xhtml">
                     #{paper.title}
                     <f:param name="id" value="#{paper.id}"/>
                 </h:outputLink>
             </p:column>
-            <p:column headerText="Статус">
+            <p:column headerText="Статус" filterBy="#{paper.status} #{paper.status.statusName}"
+                      filterMatchMode="contains">'
+                <f:facet name="filter">
+                    <p:selectOneMenu onchange="PF('papersTable').filter()" styleClass="custom-filter"
+                                     converter="paperStatusConverter">
+                        <f:selectItem itemLabel="Статус" itemValue="#{null}" noSelectionOption="true"/>
+                        <f:selectItems value="#{papersView.paperStatuses}" var="status" itemLabel="#{status.statusName}"
+                                       itemValue="#{status}"/>
+                    </p:selectOneMenu>
+                </f:facet>
                 <ui:include src="paperStatusFragment.xhtml">
                     <ui:param name="paper" value="#{paper}"/>
                 </ui:include>