Have downloadable shopping list

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

@@ -25,7 +25,7 @@ public class ShopIngredient implements Comparable<Object> {
 	 * @param ingkey
 	 * @param shopCat
 	 */
-	public ShopIngredient(	double amount, String unit,
+	public ShopIngredient(	Double amount, String unit,
 							String item, String ingkey,
 							String shopCat) {
 		this.amount = amount;
@@ -68,14 +68,14 @@ public class ShopIngredient implements Comparable<Object> {
 	/**
 	 * @return the amount
 	 */
-	public double getAmount() {
+	public Double getAmount() {
 		return amount;
 	}
 
 	/**
 	 * @param amount the amount to set
 	 */
-	public void setAmount(double amount) {
+	public void setAmount(Double amount) {
 		this.amount = amount;
 	}
 
@@ -83,8 +83,12 @@ public class ShopIngredient implements Comparable<Object> {
 	 * @return the displayAmount
 	 */
 	public String getDisplayAmount() {
+		Double amt = this.getAmount();
+		if ( amt == null) {
+			return "";
+		}
 		return IngredientDigester.displayAmount(
-			IngredientAmountFormat.IA_TEXT, this.getAmount(),
+			IngredientAmountFormat.IA_TEXT, amt,
 			null);
 	}
 
@@ -112,7 +116,7 @@ public class ShopIngredient implements Comparable<Object> {
 	}
 
 	private String ingkey;
-	private double amount;
+	private Double amount;
 	private String displayAmount;
 	private String unit;
 

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

@@ -1,17 +1,22 @@
 package com.mousetech.gourmetj;
 
+import java.io.ByteArrayOutputStream;
+import java.io.PrintWriter;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.List;
+import java.util.stream.Collectors;
 
 import javax.annotation.PostConstruct;
-import javax.faces.event.AjaxBehaviorEvent;
 import javax.faces.view.ViewScoped;
 import javax.inject.Inject;
 import javax.inject.Named;
 
 import org.apache.commons.lang3.StringUtils;
+import org.primefaces.model.ByteArrayContent;
+import org.primefaces.model.DefaultStreamedContent;
+import org.primefaces.model.StreamedContent;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -19,11 +24,57 @@ import com.mousetech.gourmetj.persistence.dao.ShopcatRepository;
 import com.mousetech.gourmetj.persistence.model.Ingredient;
 import com.mousetech.gourmetj.persistence.model.Recipe;
 import com.mousetech.gourmetj.persistence.model.Shopcat;
+import com.mousetech.gourmetj.utils.YamlShoppingList;
 
 @Named
 @ViewScoped
 public class ShoppingListBean implements Serializable {
 
+	public class RecipeReference {
+
+		private int count;
+		private Recipe recipe;
+
+		/**
+		 * Constructor Constructor.
+		 * 
+		 * @param r Recipe to reference (from Shopping List)
+		 */
+		public RecipeReference(Recipe r) {
+			count = 1;
+			recipe = r;
+		}
+
+		/**
+		 * @return the count
+		 */
+		public int getCount() {
+			return count;
+		}
+
+		/**
+		 * @param count the count to set
+		 */
+		public void setCount(int count) {
+			this.count = count;
+		}
+
+		/**
+		 * @return the recipe
+		 */
+		public Recipe getRecipe() {
+			return recipe;
+		}
+
+		/**
+		 * @param recipe the recipe to set
+		 */
+		public void setRecipe(Recipe recipe) {
+			this.recipe = recipe;
+		}
+
+	}
+
 	/**
 	 * Serial version for session save/restore
 	 */
@@ -41,7 +92,7 @@ public class ShoppingListBean implements Serializable {
 
 	private List<ShopIngredient> siList;
 
-//	private List<ShopIngredient> ingredientList;
+	private List<RecipeReference> recipeList;
 
 	@PostConstruct
 	public void init() {
@@ -50,8 +101,19 @@ public class ShoppingListBean implements Serializable {
 		buildMaps();
 	}
 
-	public List<Recipe> getRecipeList() {
-		return this.userSession.getShoppingList();
+	public List<RecipeReference> getRecipeList() {
+		if (this.recipeList == null) {
+			this.recipeList = loadRecipeList();
+		}
+		return this.recipeList;
+	}
+
+	private List<RecipeReference> loadRecipeList() {
+		List<RecipeReference> list =
+				userSession.getShoppingList().stream()
+					.map(r -> new RecipeReference(r))
+					.collect(Collectors.toList());
+		return list;
 	}
 
 	public List<ShopIngredient> getIngredientList() {
@@ -59,7 +121,8 @@ public class ShoppingListBean implements Serializable {
 	}
 
 	private void buildMaps() {
-		for (Recipe r : this.getRecipeList()) {
+		this.siList = new ArrayList<ShopIngredient>(30);
+		for (RecipeReference r : this.getRecipeList()) {
 			buildMapsFor(r);
 		}
 		// Now consolidate amounts and sort by
@@ -77,8 +140,13 @@ public class ShoppingListBean implements Serializable {
 	 * 
 	 * @see #buildMaps()
 	 */
-	private void buildMapsFor(Recipe r) {
-		for (Ingredient ing : r.getIngredientHash()) {
+	private void buildMapsFor(RecipeReference r) {
+		final int multiplier = r.getCount();
+		if (multiplier == 0) {
+			return;
+		}
+		for (Ingredient ing : r.getRecipe()
+			.getIngredientHash()) {
 			String ingkey = ing.getIngkey();
 			if (StringUtils.isBlank(ingkey)) {
 				continue;
@@ -86,10 +154,21 @@ public class ShoppingListBean implements Serializable {
 			String shopCatName = ing.getShopCat() != null
 					? ing.getShopCat().getShopcategory()
 					: null;
-			ShopIngredient sing = new ShopIngredient(
-					ing.getAmount(), ing.getUnit(),
-					ing.getItem(), ing.getIngkey(), shopCatName);
-			siList.add(sing);
+			ShopIngredient sing;
+			try {
+				Double amt = ing.getAmount();
+				if (multiplier > 1 && (amt != null)) {
+					amt *= multiplier;
+				}
+				sing = new ShopIngredient(amt, ing.getUnit(),
+						ing.getItem(), ing.getIngkey(),
+						shopCatName);
+				siList.add(sing);
+			} catch (Exception e) {
+				log.error("Unable to create ShopIngredient for "
+						+ r.getRecipe() + " Ingredient " + ing);
+				e.printStackTrace();
+			}
 		}
 	}
 
@@ -150,6 +229,12 @@ public class ShoppingListBean implements Serializable {
 		}
 	}
 
+	public StreamedContent getDlIngredientList() {
+		return YamlShoppingList
+			.createDownload(getIngredientList());
+	}
+
+	// =============================================
 	private List<String> shopcatList;
 
 	public List<String> getShopcatList() {
@@ -211,6 +296,15 @@ public class ShoppingListBean implements Serializable {
 		this.shopcatList = null;
 	}
 
+	/**
+	 * Primefaces AJAX listener for changes to amount values of
+	 * recipes the recipe list. Forces re-computation of
+	 * ingredient requirements.
+	 */
+	public void pfAmountChange() {
+		buildMaps();
+	}
+
 	// ===
 	private String selectedShopcat;
 
@@ -291,12 +385,12 @@ public class ShoppingListBean implements Serializable {
 			return; // effective NO-OP
 		}
 		newCat = newCat.trim();
-		if ( StringUtils.isBlank(newCat)) {
+		if (StringUtils.isBlank(newCat)) {
 			this.shopcatRepository
-			.deleteShopcatFor(this.getSelectedIngkey());			
+				.deleteShopcatFor(this.getSelectedIngkey());
 		} else {
-		this.shopcatRepository
-			.updateShopcatFor(newCat, this.getSelectedIngkey());
+			this.shopcatRepository.updateShopcatFor(newCat,
+				this.getSelectedIngkey());
 		}
 	}
 

src/main/resources/META-INF/resources/css/style.css

@@ -23,7 +23,6 @@ textarea {
 }
 
 #footer {
-    position: absolute;
     bottom: 90px;
     width: 100%;
 }

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

@@ -33,7 +33,9 @@
                     <f:selectItems
                         value="#{userSession.searchTypeList}"
                     />
-                    <p:ajax listener="#{adminMainBean.resetSuggestions}"/>
+                    <p:ajax
+                        listener="#{adminMainBean.resetSuggestions}"
+                    />
                 </p:selectOneMenu>
                 <p:commandButton id="ctlClear" value="Clear"
                     icon="ui-icon-close"
@@ -46,6 +48,13 @@
                 <p:commandButton value="More..."
                     action="#{adminMainBean.doMore}"
                 />
+                <h:outputText id="slistSSize"
+                    style="margin-left: 2em"
+                    value="#{userSession.shoppingList.size()}"
+                />
+                <h:outputLabel for="slistSize"
+                    value=" Recipes in Shopping List"
+                />
             </div>
         </h:form>
         <h:form id="form2">

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

@@ -23,6 +23,15 @@
 	border-width: 0;
 	border-style: none;
 }
+
+.noRecipe {
+	text-decoration: line-through;
+	color: gray;
+}
+
+.plusRecipe {
+	
+}
 </style>
         <h:messages />
         <p:tabView id="tabGroupClient" orientation="left"
@@ -38,11 +47,31 @@
                         <f:facet name="header">
                             <h:outputText value="Recipes" />
                         </f:facet>
+                        <p:column style="width: 4em">
+                            <p:spinner required="true" min="0"
+                                value="#{item.count}" size="1"
+                            >
+                                <p:ajax
+                                    listener="#{shoppingListBean.pfAmountChange}"
+                                    update="@form:tblShopIngredients rname"
+                                />
+                            </p:spinner>
+                        </p:column>
                         <p:column>
-                            <h:outputText value="#{item.title}" />
+                            <h:outputText id="rname"
+                                styleClass="#{(item.count eq 0) ? 'noRecipe' :'plusRecipe' }"
+                                value="#{item.recipe.title}"
+                            />
                         </p:column>
                     </p:dataTable>
-                    <!-- ====== Ingredients ============================ -->
+                    <!-- ====== Ingredients To Buy ======================= -->
+                    <p:column id="dlIng">
+                        <p:commandButton value="Download List" ajax="false">
+                            <p:fileDownload
+                                value="#{shoppingListBean.dlIngredientList}" 
+                            />
+                        </p:commandButton>
+                    </p:column>
                     <p:column id="ingredientsc"
                         style="width: 25%; vertical-align: top;"
                     >
@@ -64,11 +93,6 @@
                                     />
                                 </p:column>
                             </p:headerRow>
-                            <p:column label="ingKey">
-                                <h:outputText
-                                    value="#{item.ingkey}"
-                                />
-                            </p:column>
                             <p:column label="Amt"
                                 style="width: 3em; text-align: right"
                             >
@@ -95,11 +119,17 @@
                 </h:form>
             </p:tab>
             <!--  -->
-            <p:tab id="ingshopcatEditTab" title="Edit">
+            <p:tab id="ingshopcatEditTab"
+                title="Edit Shopping Categories"
+            >
                 <ui:include
                     src="/WEB-INF/layout/misctabs/ingshopkey.xhtml"
                 />
             </p:tab>
+            <!--  -->
+            <p:tab id="tabImportExport" title="Import/Export">
+                <h:outputText value="For future implementation" />
+            </p:tab>
         </p:tabView>
         <h:form id="frmHome">
             <p:commandButton id="doHome" value="Home"