cleanups for shopping list

README.md

@@ -1,4 +1,4 @@
-# Gourmet Recipe Manager - Spring Boot
+# Gourmet Recipe Manager - Spring Boot - Version 2
 
 This is a port of Thomas Hinkle (thinkle) Gourmet Recipe Manager.
 
@@ -86,3 +86,13 @@ employed when you run this app on your local desktop.
 
 A lot of recipe websites publish images in webp form. Support
 for webp has now been added.
+
+### Better session management
+
+JSF tends to depend on session-scope context. Sessions, however
+time out and this has been an annoyance when a recipe is being
+displayed. To minimize this, better timeout mechanisms have been
+installed and the recipe browser keeps last-search and search-type
+values in long-lived cookies on the client. The server will read
+and cache them, but if the server times out, it will automatically
+re-read the cookies on the next request.

application.properties

@@ -22,3 +22,5 @@ spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
 # My special properties
 gourmet.password.file=${user.home}/.gourmetpw
 
+# This will override aplication.yml
+#server.servlet.context-parameters.primefaces.THEME=le-frog

pom.xml

@@ -78,6 +78,12 @@
             <artifactId>all-themes</artifactId>
             <version>1.0.10</version>
         </dependency>
+        <dependency>
+            <!--  Primefaces theme won't work without this! -->
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <scope>runtime</scope>
+        </dependency>        
         <!--        <dependency>
             <groupId>javax.enterprise</groupId>
             <artifactId>cdi-api</artifactId>

src/main/java/com/mousetech/gourmetj/AdminMainBean.java

@@ -1,6 +1,7 @@
 package com.mousetech.gourmetj;
 
 import java.io.Serializable;
+import java.io.UnsupportedEncodingException;
 
 import jakarta.annotation.PostConstruct;
 import jakarta.faces.event.AjaxBehaviorEvent;
@@ -14,7 +15,9 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 import com.mousetech.gourmetj.persistence.model.Recipe;
 import com.mousetech.gourmetj.persistence.service.RecipeService;
@@ -44,8 +47,11 @@ public class AdminMainBean implements Serializable {
 	private static final Logger log =
 			LoggerFactory.getLogger(AdminMainBean.class);
 
+	/** Cookie delimiter */
+	private static final String CKDLM = ",";
+
 	/**
-	 * Persistency service for Recipes
+	 * Persistency service for Recipes.
 	 */
 
 	@Inject
@@ -56,6 +62,24 @@ public class AdminMainBean implements Serializable {
 		this.recipeService = service;
 	}
 
+	// **
+	@Inject
+	private CookieBean cookieBean;
+	
+	/**
+	 * @return the cookieBean
+	 */
+	public CookieBean getCookieBean() {
+		return cookieBean;
+	}
+
+	/**
+	 * @param cookieBean the cookieBean to set
+	 */
+	public void setCookieBean(CookieBean cookieBean) {
+		this.cookieBean = cookieBean;
+	}
+
 	// **
 	@Inject
 	private UserSession userSession;
@@ -81,10 +105,10 @@ public class AdminMainBean implements Serializable {
 	 * @return the searchText
 	 */
 	public String getSearchText() {
-		if (this.searchResults == null) {
-			// Fake around broken @PostConstruct
-			this.setSearchText(userSession.getLastSearch());
-		}
+//		if (this.searchResults == null) {
+//			this.setSearchText(cookieBean.getSearchText());
+//		}
+		this.searchText = cookieBean.getSearchText();
 		return searchText;
 	}
 
@@ -93,7 +117,7 @@ public class AdminMainBean implements Serializable {
 	 */
 	public void setSearchText(String searchText) {
 		this.searchText = searchText;
-		userSession.setLastSearch(searchText);
+		cookieBean.setSearchText(searchText);
 	}
 
 	private List<String> suggestionList = null;
@@ -104,7 +128,7 @@ public class AdminMainBean implements Serializable {
 
 	public List<String> searchSuggestionList(String query) {
 		if (suggestionList == null) {
-			switch (this.userSession.getSearchType()) {
+			switch (searchtypeEnum()) {
 			case rst_BY_CATEGORY:
 				suggestionList = recipeService.findCategories();
 				break;
@@ -118,6 +142,16 @@ public class AdminMainBean implements Serializable {
 		return suggestionList;
 	}
 
+	private RecipeSearchType searchtypeEnum() {
+		int stn = cookieBean.getSearchType();
+		return searchtypeEnum(stn);
+	}
+
+	private RecipeSearchType searchtypeEnum(int stn) {
+		RecipeSearchType st = RecipeSearchType.values()[stn];
+		return st;
+	}
+	
 	/**/
 	transient DataModel<Recipe> searchResults;
 
@@ -127,7 +161,7 @@ public class AdminMainBean implements Serializable {
 	public DataModel<Recipe> getSearchResults() {
 		if (searchResults == null) {
 			searchResults = new ListDataModel<Recipe>();
-			init(); // @PostConstruct is broken
+			init(); // @PostConstruct is broken TODO: fixed??
 		}
 		return searchResults;
 	}
@@ -147,7 +181,7 @@ public class AdminMainBean implements Serializable {
 	@PostConstruct
 	void init() {
 		log.debug("Initializing AdminMainBean " + this);
-		this.setSearchText(userSession.getLastSearch());
+		this.setSearchText(cookieBean.getSearchText());
 		// Clean up from any previous operations.
 		this.userSession.setRecipe(null);
 		doFind();
@@ -177,9 +211,20 @@ public class AdminMainBean implements Serializable {
 	 */
 	public String doFind() {
 		List<Recipe> recipes = null;
+		if ( searchText == null ) {
+			setSearchText("");
+		}
 		searchText = searchText.trim();
 
-		switch (this.getUserSession().getSearchType()) {
+		// Persist current settings
+		try {
+			cookieBean.saveCookies();
+		} catch (UnsupportedEncodingException e) {
+			// Something is really wrong if we can't create UTF-8!
+			log.error("Unable to save cookies!", e);
+		}
+		RecipeSearchType st = searchtypeEnum(); 
+		switch (st) {
 		case rst_BY_NAME:
 			recipes = recipeService.findByTitle(searchText);
 			break;
@@ -197,12 +242,11 @@ public class AdminMainBean implements Serializable {
 			break;
 		default:
 			log.error("Invalid recipe search type: "
-					+ this.getUserSession().getSearchType());
+					+ st);
 			break;
 		}
 
 		getSearchResults().setWrappedData(recipes);	
-		this.userSession.setLastSearch(this.getSearchText());
 		return null; // Stay on page
 	}
 
@@ -243,27 +287,4 @@ public class AdminMainBean implements Serializable {
 										// items.
 		return "recipeDetails?faces-redirect=true";
 	}
-
-	/**
-	 * Get printable preptime. Database version is in seconds.
-	 * 
-	 * @deprecated User {@link UserSession#formatTime(Long)}
-	 * 
-	 * @return Formatted time. Called from EL on main page.
-	 */
-	public String formatPreptime(int timesec) {
-		StringBuffer sb = new StringBuffer(20);
-		int preptime = timesec / 60;
-		if (preptime > 60) {
-			int hours = preptime / 60;
-			sb.append(hours);
-			sb.append(" h. ");
-			preptime %= 60;
-		}
-		if (preptime > 0) {
-			sb.append(preptime);
-			sb.append(" min.");
-		}
-		return sb.toString();
-	}
 }

src/main/java/com/mousetech/gourmetj/AppBean.java

@@ -0,0 +1,51 @@
+package com.mousetech.gourmetj;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.faces.model.SelectItem;
+import jakarta.inject.Named;
+
+/**
+ * Appplication-scope data (mostly constants)
+ * 
+ * @author timh
+ * @since Feb 1, 2024
+ */
+@Named
+@ApplicationScoped
+public class AppBean {
+
+	public AppBean() {
+		// TODO Auto-generated constructor stub
+	}
+
+	private List<SelectItem> searchTypeList;
+
+	/**
+	 * @return the searchTypeList
+	 * @see RecipeSearchType
+	 * Used by main.xhtml
+	 */
+	public List<SelectItem> getSearchTypeList() {
+		if (searchTypeList == null) {
+			searchTypeList = loadSearchTypeList();
+		}
+		return searchTypeList;
+	}
+
+	private List<SelectItem> loadSearchTypeList() {
+		List<SelectItem> list = new ArrayList<SelectItem>(5);
+		list.add(new SelectItem(RecipeSearchType.rst_BY_NAME.ordinal(),
+				"Title"));
+		list.add(new SelectItem(RecipeSearchType.rst_BY_CATEGORY.ordinal(),
+				"Category"));
+		list.add(new SelectItem(RecipeSearchType.rst_BY_CUISINE.ordinal(),
+				"Cuisine"));
+		list.add(
+			new SelectItem(RecipeSearchType.rst_BY_INGREDIENT.ordinal(),
+					"Ingredient"));
+		return list;
+	}	
+}

src/main/java/com/mousetech/gourmetj/CookieBean.java

@@ -0,0 +1,127 @@
+/**
+ * Copyright (C) 2024, Tim Holloway
+ *
+ * Manages app data persisted client-side in cookies.
+ *
+ * Date written: Jan 31, 2024
+ * Author: Tim Holloway <timh@mousetech.com>
+ */
+package com.mousetech.gourmetj;
+
+import java.io.UnsupportedEncodingException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import jakarta.annotation.PostConstruct;
+import jakarta.faces.view.ViewScoped;
+import jakarta.inject.Named;
+
+/**
+ * Caching object for cookie data persistence.
+ * 
+ * @author timh
+ * @since Jan 31, 2024
+ */
+@Named
+@ViewScoped
+public class CookieBean {
+
+	private static final String KEY_DISPLAY_ROWS = "displayRows";
+
+	private static final String KEY_SEARCH_TYPE = "searchType";
+
+	private static final String KEY_SEARCH_FOR = "searchFor";
+
+	/* Logger */
+
+	private static final Logger log =
+			LoggerFactory.getLogger(CookieBean.class);
+
+	private Map<String, String> cookieMap;
+
+	/**
+	 * Constructor.
+	 */
+	public CookieBean() {
+	}
+
+	@PostConstruct
+	public void init() {
+		this.cookieMap = JSFUtils.getCookies();
+	}
+
+	/**
+	 * Persist us to client cookie storage
+	 * 
+	 * @throws UnsupportedEncodingException (which should never
+	 *                                      happen)
+	 */
+	public void saveCookies()
+			throws UnsupportedEncodingException {
+		final Map<String, Object> properties = new HashMap<>();
+		properties.put("maxAge", 31536000);
+		properties.put("path", "/");
+		properties.put("SameSite", "Strict");
+
+		for (Entry<String, String> e : cookieMap.entrySet()) {
+			JSFUtils.outputCookie(e.getKey(), e.getValue(),
+				properties);
+		}
+	}
+
+	/**
+	 * Get Cookie value by name
+	 * 
+	 * @param name Name of the cookie
+	 * @return Value stored in the cookie
+	 */
+	public String getCookieValue(String name) {
+		return cookieMap.get(name);
+	}
+
+	public void setCookieValue(String name, String value) {
+		cookieMap.put(name, value);
+	}
+
+	// ************************
+	// App-specific properties
+	// ************************
+
+	public String getSearchText() {
+		return cookieMap.get(KEY_SEARCH_FOR);
+	}
+
+	public void setSearchText(String value) {
+		cookieMap.put(KEY_SEARCH_FOR, value);
+	}
+
+	// **
+	public Integer getSearchType() {
+		if (!cookieMap.containsKey(KEY_SEARCH_TYPE)) {
+			cookieMap.put(KEY_SEARCH_TYPE, "0");
+		}
+		String st = cookieMap.get(KEY_SEARCH_TYPE);
+		return Integer.valueOf(String.valueOf(st));
+	}
+
+	public void setSearchType(Integer value) {
+		cookieMap.put(KEY_SEARCH_TYPE, String.valueOf(value));
+	}
+
+	// **
+	public Integer getDisplayListSize() {
+		if (!cookieMap.containsKey(KEY_DISPLAY_ROWS)) {
+			cookieMap.put(KEY_DISPLAY_ROWS, "30");
+		}
+		String st = cookieMap.get(KEY_DISPLAY_ROWS);
+		return Integer.valueOf(String.valueOf(st));
+	}
+
+	public void setDisplayListSize(Integer value) {
+		cookieMap.put(KEY_DISPLAY_ROWS, String.valueOf(value));
+	}
+}

src/main/java/com/mousetech/gourmetj/JSFUtils.java

@@ -1,11 +1,17 @@
 package com.mousetech.gourmetj;
 
 import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.Collectors;
 
 import jakarta.faces.application.FacesMessage;
 import jakarta.faces.context.ExternalContext;
 import jakarta.faces.context.FacesContext;
 import jakarta.faces.context.Flash;
+import jakarta.servlet.http.Cookie;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -55,6 +61,14 @@ public class JSFUtils {
 			message);
 	}
 
+
+	public static void addWarningMessage(String msgString) {
+		FacesMessage message = new FacesMessage(
+			FacesMessage.SEVERITY_WARN, "WARNING", msgString);
+		FacesContext.getCurrentInstance().addMessage(null,
+			message);
+	}	
+	
 	/**
 	 * Post an error-level message to the FacesContext where the
 	 * <h:messages> tag can display it.
@@ -103,4 +117,36 @@ public class JSFUtils {
 	public static void putFlash(String key, Object value) {
 		flashScope().put(key, value);
 	}
+
+	//***********
+	//* COOKIE!!!
+	//***********
+	
+	/**
+	 * Get cookie values.
+	 */
+	public static Map<String, String> getCookies(){
+		Map<String, Object> m0 = getExternalContext().getRequestCookieMap();
+		Map<String, String>m1 = new HashMap<String, String>();
+		m1 = m0.entrySet()
+				.stream()
+				.collect(Collectors.toMap(
+					e -> e.getKey(),
+					e -> ((Cookie)e.getValue()).getValue()));
+		return m1;
+	}
+
+	/**
+	 * Set a cookie value in Response.
+	 * @param name Cookie name
+	 * @param value Cookie value
+	 * @param properties Cookie property Map (timeout, <i>etc.</i>)
+	 * @throws UnsupportedEncodingException 
+	 */
+	public static void outputCookie(String name,
+			String value, Map<String, Object> properties) throws UnsupportedEncodingException {
+		getExternalContext().addResponseCookie(name,
+			URLEncoder.encode(value, "UTF-8"),			
+			properties);
+	}		
 }

src/main/java/com/mousetech/gourmetj/UserSession.java

@@ -129,32 +129,6 @@ public class UserSession implements Serializable {
 		this.searchType = searchType;
 	}
 
-	private List<SelectItem> searchTypeList;
-
-	/**
-	 * @return the searchTypeList
-	 */
-	public List<SelectItem> getSearchTypeList() {
-		if (searchTypeList == null) {
-			searchTypeList = loadSearchTypeList();
-		}
-		return searchTypeList;
-	}
-
-	private List<SelectItem> loadSearchTypeList() {
-		List<SelectItem> list = new ArrayList<SelectItem>(5);
-		list.add(new SelectItem(RecipeSearchType.rst_BY_NAME,
-				"Title"));
-		list.add(new SelectItem(RecipeSearchType.rst_BY_CATEGORY,
-				"Category"));
-		list.add(new SelectItem(RecipeSearchType.rst_BY_CUISINE,
-				"Cuisine"));
-		list.add(
-			new SelectItem(RecipeSearchType.rst_BY_INGREDIENT,
-					"Ingredient"));
-		return list;
-	}
-
 	// ====
 
 	public String formatCategories(Recipe r) {
@@ -190,16 +164,17 @@ public class UserSession implements Serializable {
 	private List<Recipe> shoppingList = new ArrayList<Recipe>();
 
 	/**
-	 * @return the sessionTimeoutInterval
+	 * @return the sessionTimeoutInterval, msec
 	 */
 	public long getSessionTimeoutInterval() {
-		return sessionTimeoutInterval;
+		return 5000L; //sessionTimeoutInterval;
 	}
 
 	public void sessionIdleListener() {
 		log.warn("Session Idle Listener fired.");
-		PrimeFaces.current()
-			.executeScript("sessionExpiredConfirmation.show()");
+		JSFUtils.addWarningMessage("Timeout approaching. Save your work!");
+//		PrimeFaces.current()
+//			.executeScript("sessionExpiredConfirmation.show()");
 	}
 
 	public String logoutAction() {

src/main/resources/META-INF/resources/WEB-INF/layout/layout.xhtml

@@ -6,10 +6,9 @@
     xmlns:ui="http://java.sun.com/jsf/facelets"
     xmlns:p="http://primefaces.org/ui"
 >
-<head></head>
-<body>
+<h:head></h:head>
+<h:body>
     <ui:composition>
-        <f:view>
             <h:head>
                 <title><ui:insert name="title">Gourmet Recipe Manager (web version)</ui:insert></title>
                 <link rel="icon" type="image/vnd.microsoft.icon"
@@ -29,50 +28,14 @@
                 </ui:insert>
                 <!--  -->
                 <div id="footer">
-                    (C) 2021 Tim Holloway, Licensed under the <a
+                    (C) 2021, 2024 Tim Holloway, Licensed under the <a
                         href="http://www.apache.org/licenses/LICENSE-2.0"
                     >Apache License, Version 2.0</a>.
                     <p>Based on Gourmet Recipe Manager by T.
                         Hinkle</p>
                 </div>
                 <!--  -->
-                <h:form id="frmTimeout">
-                    <p:idleMonitor
-                        timeout="#{userSession.sessionTimeoutInterval}"
-                        onidle="PF('dlgSessionExpired').show()"
-                    >
-                        <p:ajax event="idle"
-                            listener="#{userSession.sessionIdleListener}"
-                        />
-                    </p:idleMonitor>
-                    <p:confirmDialog closable="false"
-                        id="sessionExpiredDlg"
-                        message="Your session has expired."
-                        header="#{msgs['confirmDialog.initiatingDestroyProcess.label']}"
-                        severity="alert"
-                        widgetVar="dlgSessionExpired"
-                        style="z-index: 25000"
-                    >
-                        <p:commandButton id="cmdExpiredOK"
-                            value="OK" action="/main.jsf"
-                            oncomplete="PF('dlgSessionExpired').hide()"
-                        />
-                    </p:confirmDialog>
-                </h:form>
-                <!--  -->
-                <h:form id="frmOpErr">
-                    <p:confirmDialog
-                        message="Session may have expired."
-                        header="Error"
-                        severity="alert" widgetVar="opError"
-                    >
-                        <p:commandButton value="OK"
-                            oncomplete="PF('opError').hide()"
-                        />
-                    </p:confirmDialog>
-                </h:form>
             </h:body>
-        </f:view>
     </ui:composition>
-</body>
+</h:body>
 </html>

src/main/resources/META-INF/resources/detailEdit.xhtml

@@ -395,6 +395,19 @@
                     />                    
                 </h:form>
             </p:panel>
+            <!--  -->
+            <p:growl id="growl" showDetail="true" />
+            <h:form id="frmTimeout">
+               <p:idleMonitor
+                  timeout="#{userSession.sessionTimeoutInterval}"
+               >
+                  <p:ajax id="ajaxIdle" event="idle"
+                    listener="#{userSession.sessionIdleListener}"
+                    update="growl"
+                  />
+               </p:idleMonitor>
+            </h:form>
+            <!--  -->
             <p:dialog id="addGroupDlg" widgetVar="addGroupDlg">
                 <h:form id="frmAddGroup">
                     <p:panelGrid columns="1">

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

@@ -28,10 +28,10 @@
                 />
                 <p:outputLabel for="@next" value="Search for " />
                 <p:selectOneMenu id="ctlSearchType"
-                    value="#{userSession.searchType}"
+                    value="#{cookieBean.searchType}"
                 >
                     <f:selectItems
-                        value="#{userSession.searchTypeList}"
+                        value="#{appBean.searchTypeList}"
                     />
                     <p:ajax
                         listener="#{adminMainBean.resetSuggestions}"
@@ -45,12 +45,12 @@
                 <p:commandButton value="New Recipe"
                     action="#{adminMainBean.doNewRecipe}"
                 />
-                <p:commandButton value="More..."
+                <p:commandButton value="Shopping..."
                     action="#{adminMainBean.doMore}"
                 />
                 <h:outputText id="slistSSize"
                     style="margin-left: 2em"
-                    value="#{userSession.shoppingList.size()}"
+                    value="#{cookieBean.displayListSize}"
                 />
                 <h:outputLabel for="slistSize"
                     value=" Recipes in Shopping List"

src/main/resources/META-INF/resources/shoppingList.xhtml

@@ -6,7 +6,7 @@
     xmlns:p="http://primefaces.org/ui"
     xmlns:c="http://xmlns.jcp.org/jstl"
 >
-    <!-- Tabbed page for the Mainpage "More..." button -->
+    <!-- Tabbed page for the Mainpage "Shopping..." button -->
     <ui:define name="title">Gourmet Recipe Manager - Shopping</ui:define>
     <ui:define name="content">
         <style>
@@ -34,6 +34,7 @@
 	
 }
 </style>
+        This is the list of recipe items you've selected to shop for.
         <h:messages />
         <p:tabView id="tabGroupClient" orientation="left"
             dynamic="true"
@@ -95,13 +96,11 @@
                                     value="Ingredients"
                                 />
                             </f:facet>
-                            <p:headerRow>
                                 <p:column colspan="4">
                                     <h:outputText
                                         value="#{item.shopCat}"
                                     />
                                 </p:column>
-                            </p:headerRow>
                             <p:column label="Amt"
                                 style="width: 3em; text-align: right"
                             >
@@ -150,6 +149,7 @@
             </p:tab>
             <!--  -->
             <p:tab id="tabPantry" title="Pantry">
+                <h:outputText value="Stuff already in the pantry." />
                 <h:outputText value="For future implementation" />
             </p:tab>
             <!--  -->

src/main/resources/application.yml

@@ -26,6 +26,11 @@ server:
     servlet:
         session:
             timeout: '30m'
+# Theme here pverrides jinfaces theme            
+#        context-parameters:
+#            primefaces:
+#                THEME: vela
+
 
 gourmet:
     password:
@@ -33,4 +38,4 @@ gourmet:
         
 joinfaces:
   primefaces:
-    theme: saga
+    theme: casablanca