Products From Database

- Categories
- Products
- i18n
- Templating

build.gradle

@@ -50,7 +50,10 @@ dependencies {
   compile('org.springframework.boot:spring-boot-starter-security')
   compile('org.springframework.boot:spring-boot-starter-thymeleaf')
   compile('org.springframework.boot:spring-boot-starter-web')
+  compile('org.apache.commons:commons-lang3:3.5')
   runtime('org.springframework.boot:spring-boot-devtools')
   runtime('org.postgresql:postgresql')
   testCompile('org.springframework.boot:spring-boot-starter-test')
+  testCompile('org.mockito:mockito-core:2.7.14')
+  testCompile('org.hamcrest:hamcrest-core:1.3')
 }

config/checkstyle/checkstyle.xml

@@ -159,12 +159,12 @@
         </module>
         <module name="AbbreviationAsWordInName">
             <property name="ignoreFinal" value="false"/>
-            <property name="allowedAbbreviationLength" value="1"/>
+            <property name="allowedAbbreviationLength" value="3"/>
         </module>
         <module name="OverloadMethodsDeclarationOrder"/>
         <module name="VariableDeclarationUsageDistance"/>
         <module name="CustomImportOrder">
-            <property name="sortImportsInGroupAlphabetically" value="true"/>
+            <!-- <property name="sortImportsInGroupAlphabetically" value="true"/> -->
             <property name="separateLineBetweenGroups" value="true"/>
             <property name="customImportOrderRules" value="STATIC###THIRD_PARTY_PACKAGE"/>
         </module>

src/main/java/de/mstock/monolith/config/HibernateConfig.java

@@ -0,0 +1,15 @@
+package de.mstock.monolith.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.orm.jpa.vendor.HibernateJpaSessionFactoryBean;
+
+@Configuration
+public class HibernateConfig {
+
+  @Bean
+  public HibernateJpaSessionFactoryBean sessionFactory() {
+    return new HibernateJpaSessionFactoryBean();
+  }
+
+}

src/main/java/de/mstock/monolith/config/I18nConfig.java

@@ -1,34 +1,32 @@
 package de.mstock.monolith.config;
 
+import java.util.Arrays;
+import java.util.List;
 import java.util.Locale;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.LocaleResolver;
-import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
-import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;
-import org.springframework.web.servlet.i18n.SessionLocaleResolver;
+import org.springframework.web.servlet.i18n.AcceptHeaderLocaleResolver;
 
 @Configuration
 public class I18nConfig extends WebMvcConfigurerAdapter {
 
+  private static final List<Locale> SUPPORTED_LOCALES =
+      Arrays.asList(new Locale("de_DE"), new Locale("en_US"));
+
+  /**
+   * Creates a Bean, managed by Spring.
+   * 
+   * @return A configured LocaleResolver
+   */
   @Bean
   public LocaleResolver localeResolver() {
-    SessionLocaleResolver slr = new SessionLocaleResolver();
-    slr.setDefaultLocale(Locale.US);
-    return slr;
+    AcceptHeaderLocaleResolver localeResolver = new AcceptHeaderLocaleResolver();
+    localeResolver.setSupportedLocales(SUPPORTED_LOCALES);
+    localeResolver.setDefaultLocale(Locale.US);
+    return localeResolver;
   }
 
-  @Bean
-  public LocaleChangeInterceptor localeChangeInterceptor() {
-    LocaleChangeInterceptor lci = new LocaleChangeInterceptor();
-    lci.setParamName("lang");
-    return lci;
-  }
-
-  @Override
-  public void addInterceptors(InterceptorRegistry registry) {
-    registry.addInterceptor(localeChangeInterceptor());
-  }
 }

src/main/java/de/mstock/monolith/domain/Category.java

@@ -0,0 +1,61 @@
+package de.mstock.monolith.domain;
+
+import java.util.List;
+import java.util.Map;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
+import javax.persistence.MapKey;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "categories")
+public class Category {
+
+  @Id
+  private int id;
+  private int ordinal;
+  @OneToMany(mappedBy = "category")
+  @MapKey(name = "categoryI18nPk.localeLanguage")
+  private Map<String, CategoryI18n> i18n;
+  @ManyToMany
+  @JoinTable(name = "category_products", inverseJoinColumns = @JoinColumn(name = "product_id"))
+  private List<Product> products;
+
+  public int getId() {
+    return id;
+  }
+
+  public void setId(int id) {
+    this.id = id;
+  }
+
+  public int getOrdinal() {
+    return ordinal;
+  }
+
+  public void setOrdinal(int ordinal) {
+    this.ordinal = ordinal;
+  }
+
+  public Map<String, CategoryI18n> getI18n() {
+    return i18n;
+  }
+
+  public void setI18n(Map<String, CategoryI18n> i18n) {
+    this.i18n = i18n;
+  }
+
+  public List<Product> getProducts() {
+    return products;
+  }
+
+  public void setProducts(List<Product> products) {
+    this.products = products;
+  }
+
+}

src/main/java/de/mstock/monolith/domain/CategoryI18n.java

@@ -0,0 +1,37 @@
+package de.mstock.monolith.domain;
+
+import javax.persistence.EmbeddedId;
+import javax.persistence.Entity;
+import javax.persistence.ManyToOne;
+import javax.persistence.MapsId;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "categories_i18n")
+public class CategoryI18n {
+
+  @EmbeddedId
+  private CategoryI18nPk categoryI18nPk;
+  @ManyToOne
+  @MapsId("categoryId")
+  private Category category;
+  private String name;
+  private String prettyUrlFragment;
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public String getPrettyUrlFragment() {
+    return prettyUrlFragment;
+  }
+
+  public void setPrettyUrlFragment(String prettyUrlFragment) {
+    this.prettyUrlFragment = prettyUrlFragment;
+  }
+
+}

src/main/java/de/mstock/monolith/domain/CategoryI18nPk.java

@@ -0,0 +1,52 @@
+package de.mstock.monolith.domain;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+import javax.persistence.Embeddable;
+
+@Embeddable
+public class CategoryI18nPk implements Serializable {
+
+  private static final long serialVersionUID = 6985884171403931363L;
+  private int categoryId;
+  private String localeLanguage;
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(categoryId, localeLanguage);
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (obj == null) {
+      return false;
+    }
+    if (obj == this) {
+      return true;
+    }
+    if (getClass() != obj.getClass()) {
+      return false;
+    }
+    CategoryI18nPk rhs = (CategoryI18nPk) obj;
+    return Objects.equals(categoryId, rhs.categoryId)
+        && Objects.equals(localeLanguage, rhs.localeLanguage);
+  }
+
+  public int getCategoryId() {
+    return categoryId;
+  }
+
+  public void setCategoryId(int categoryId) {
+    this.categoryId = categoryId;
+  }
+
+  public String getLocaleLanguage() {
+    return localeLanguage;
+  }
+
+  public void setLocaleLanguage(String localeLanguage) {
+    this.localeLanguage = localeLanguage;
+  }
+
+}

src/main/java/de/mstock/monolith/domain/CategoryRepository.java

@@ -0,0 +1,18 @@
+package de.mstock.monolith.domain;
+
+import java.util.List;
+
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.Repository;
+
+public interface CategoryRepository extends Repository<Category, Integer> {
+
+  @Query("select distinct c from Category c join fetch c.i18n i "
+      + "where key(i) = ?1 order by c.ordinal")
+  List<Category> findAllOrdered(String language);
+
+  @Query("select c from Category c join fetch c.i18n i join fetch c.products "
+      + "where key(i) = ?1 and lower(i.prettyUrlFragment) = ?2")
+  Category findByPrettyUrlFragment(String language, String prettyUrlFragment);
+
+}

src/main/java/de/mstock/monolith/domain/Product.java

@@ -0,0 +1,58 @@
+package de.mstock.monolith.domain;
+
+import java.util.Map;
+
+import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
+import javax.persistence.Id;
+import javax.persistence.MapKey;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "products")
+public class Product {
+
+  @Id
+  private int id;
+  private String itemNumber;
+  @Enumerated(EnumType.ORDINAL)
+  private ProductWeightUnit unit;
+  @OneToMany(mappedBy = "product")
+  @MapKey(name = "productI18nPk.localeLanguage")
+  private Map<String, ProductI18n> i18n;
+
+  public int getId() {
+    return id;
+  }
+
+  public void setId(int id) {
+    this.id = id;
+  }
+
+  public String getItemNumber() {
+    return itemNumber;
+  }
+
+  public void setItemNumber(String itemNumber) {
+    this.itemNumber = itemNumber;
+  }
+
+  public ProductWeightUnit getUnit() {
+    return unit;
+  }
+
+  public void setUnit(ProductWeightUnit unit) {
+    this.unit = unit;
+  }
+
+  public Map<String, ProductI18n> getI18n() {
+    return i18n;
+  }
+
+  public void setI18n(Map<String, ProductI18n> i18n) {
+    this.i18n = i18n;
+  }
+
+}

src/main/java/de/mstock/monolith/domain/ProductI18n.java

@@ -0,0 +1,64 @@
+package de.mstock.monolith.domain;
+
+import java.math.BigDecimal;
+
+import javax.persistence.EmbeddedId;
+import javax.persistence.Entity;
+import javax.persistence.ManyToOne;
+import javax.persistence.MapsId;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "products_i18n")
+public class ProductI18n {
+
+  @EmbeddedId
+  private ProductI18nPk productI18nPk;
+  @ManyToOne
+  @MapsId("productId")
+  private Product product;
+  private String name;
+  private String prettyUrlFragment;
+  private BigDecimal price;
+  private String description;
+
+  public ProductI18nPk getProductI18nPk() {
+    return productI18nPk;
+  }
+
+  public void setProductI18nPk(ProductI18nPk productI18nPk) {
+    this.productI18nPk = productI18nPk;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public String getPrettyUrlFragment() {
+    return prettyUrlFragment;
+  }
+
+  public void setPrettyUrlFragment(String prettyUrlFragment) {
+    this.prettyUrlFragment = prettyUrlFragment;
+  }
+
+  public BigDecimal getPrice() {
+    return price;
+  }
+
+  public void setPrice(BigDecimal price) {
+    this.price = price;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+  public void setDescription(String description) {
+    this.description = description;
+  }
+}

src/main/java/de/mstock/monolith/domain/ProductI18nPk.java

@@ -0,0 +1,52 @@
+package de.mstock.monolith.domain;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+import javax.persistence.Embeddable;
+
+@Embeddable
+public class ProductI18nPk implements Serializable {
+
+  private static final long serialVersionUID = 4916705045560501228L;
+  private int productId;
+  private String localeLanguage;
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(productId, localeLanguage);
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (obj == null) {
+      return false;
+    }
+    if (obj == this) {
+      return true;
+    }
+    if (getClass() != obj.getClass()) {
+      return false;
+    }
+    ProductI18nPk rhs = (ProductI18nPk) obj;
+    return Objects.equals(productId, rhs.productId)
+        && Objects.equals(localeLanguage, rhs.localeLanguage);
+  }
+
+  public int getProductId() {
+    return productId;
+  }
+
+  public void setProductId(int productId) {
+    this.productId = productId;
+  }
+
+  public String getLocaleLanguage() {
+    return localeLanguage;
+  }
+
+  public void setLocaleLanguage(String localeLanguage) {
+    this.localeLanguage = localeLanguage;
+  }
+
+}

src/main/java/de/mstock/monolith/domain/ProductRepository.java

@@ -0,0 +1,12 @@
+package de.mstock.monolith.domain;
+
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.Repository;
+
+public interface ProductRepository extends Repository<Product, Integer> {
+
+  @Query("select p from Product p join fetch p.i18n i "
+      + "where key(i) = ?1 and lower(i.name) = ?2")
+  Product findByI18nName(String language, String name);
+
+}

src/main/java/de/mstock/monolith/domain/ProductWeightUnit.java

@@ -0,0 +1,5 @@
+package de.mstock.monolith.domain;
+
+public enum ProductWeightUnit {
+  UNKNOWN, PIECE, GRAMM_100, KILO_1
+}

src/main/java/de/mstock/monolith/service/NotFoundException.java

@@ -0,0 +1,11 @@
+package de.mstock.monolith.service;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ResponseStatus(value = HttpStatus.NOT_FOUND)
+public class NotFoundException extends RuntimeException {
+
+  private static final long serialVersionUID = 4799626622256800091L;
+
+}

src/main/java/de/mstock/monolith/service/ShopService.java

@@ -0,0 +1,85 @@
+package de.mstock.monolith.service;
+
+import java.text.NumberFormat;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import de.mstock.monolith.domain.Category;
+import de.mstock.monolith.domain.CategoryI18n;
+import de.mstock.monolith.domain.CategoryRepository;
+import de.mstock.monolith.domain.Product;
+import de.mstock.monolith.domain.ProductI18n;
+import de.mstock.monolith.domain.ProductRepository;
+import de.mstock.monolith.web.CategoryDTO;
+import de.mstock.monolith.web.ProductDTO;
+
+@Service
+public class ShopService {
+
+  @Autowired
+  private CategoryRepository categoryRepository;
+
+  @Autowired
+  private ProductRepository productRepository;
+
+  /**
+   * Gets all categories of the current language.
+   * 
+   * @return A simplified Data Transfer Object.
+   */
+  public List<CategoryDTO> getCategories(Locale locale) {
+    String language = locale.getLanguage();
+    List<CategoryDTO> categories = new ArrayList<>();
+    for (Category category : categoryRepository.findAllOrdered(language)) {
+      CategoryI18n i18n = category.getI18n().get(language);
+      categories.add(new CategoryDTO(i18n.getName(), i18n.getPrettyUrlFragment()));
+    }
+    return Collections.unmodifiableList(categories);
+  }
+
+  /**
+   * Gets all products for a category in the current language.
+   * 
+   * @return A simplified Data Transfer Object.
+   */
+  public List<ProductDTO> getProductsForCategory(Locale locale, String prettyUrlFragment) {
+    String language = locale.getLanguage();
+    Category category = categoryRepository.findByPrettyUrlFragment(language, prettyUrlFragment);
+    if (category == null) {
+      throw new NotFoundException();
+    }
+    List<ProductDTO> products = new ArrayList<>();
+    NumberFormat currencyFormat = NumberFormat.getCurrencyInstance(locale);
+    for (Product product : category.getProducts()) {
+      ProductI18n i18n = product.getI18n().get(language);
+      String price = currencyFormat.format(i18n.getPrice());
+      products.add(new ProductDTO(product.getItemNumber(), product.getUnit(), i18n.getName(),
+          i18n.getPrettyUrlFragment(), price, i18n.getDescription()));
+    }
+    return Collections.unmodifiableList(products);
+  }
+
+  /**
+   * Gets a products in the current language.
+   * 
+   * @return A simplified Data Transfer Object.
+   */
+  public ProductDTO getProduct(Locale locale, String prettyUrlFragment) {
+    String language = locale.getLanguage();
+    Product product = productRepository.findByI18nName(language, prettyUrlFragment);
+    if (product == null) {
+      throw new NotFoundException();
+    }
+    ProductI18n i18n = product.getI18n().get(language);
+    NumberFormat currencyFormat = NumberFormat.getCurrencyInstance(locale);
+    String price = currencyFormat.format(i18n.getPrice());
+    return new ProductDTO(product.getItemNumber(), product.getUnit(), i18n.getName(),
+        i18n.getPrettyUrlFragment(), price, i18n.getDescription());
+  }
+
+}

src/main/java/de/mstock/monolith/web/CategoryController.java

@@ -1,20 +1,37 @@
 package de.mstock.monolith.web;
 
+import java.util.Locale;
+
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 
+import de.mstock.monolith.service.ShopService;
+
 @Controller
 public class CategoryController {
 
   private static final String TEMPLATE = "category";
 
-  @RequestMapping(value = "/categories/{name:[\\w-]+}", method = RequestMethod.GET)
-  public String homepage(@PathVariable String name, Model model) {
-    model.addAttribute("name", name);
-    model.addAttribute("activeCategory", name);
+  @Autowired
+  private ShopService shopService;
+
+  /**
+   * Category page
+   * 
+   * @param prettyUrlFragment Pretty URL fragment
+   * @param model Template model
+   * @param locale Current locale
+   * @return The template's name.
+   */
+  @RequestMapping(value = "/categories/{prettyUrlFragment:[\\w-]+}", method = RequestMethod.GET)
+  public String category(@PathVariable String prettyUrlFragment, Model model, Locale locale) {
+    model.addAttribute("categories", shopService.getCategories(locale));
+    model.addAttribute("products", shopService.getProductsForCategory(locale, prettyUrlFragment));
+    model.addAttribute("prettyUrlFragment", prettyUrlFragment);
     return TEMPLATE;
   }
 }

src/main/java/de/mstock/monolith/web/CategoryDTO.java

@@ -0,0 +1,21 @@
+package de.mstock.monolith.web;
+
+public class CategoryDTO {
+
+  private final String name;
+  private final String prettyUrlFragment;
+
+  public CategoryDTO(String name, String prettyUrlFragment) {
+    this.name = name;
+    this.prettyUrlFragment = prettyUrlFragment;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public String getPrettyUrlFragment() {
+    return prettyUrlFragment;
+  }
+
+}

src/main/java/de/mstock/monolith/web/HomepageController.java

@@ -1,17 +1,33 @@
 package de.mstock.monolith.web;
 
+import java.util.Locale;
+
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 
+import de.mstock.monolith.service.ShopService;
+
 @Controller
 public class HomepageController {
 
   private static final String TEMPLATE = "homepage";
 
+  @Autowired
+  private ShopService shopService;
+
+  /**
+   * Homepage
+   * 
+   * @param model Template model
+   * @param locale Current locale
+   * @return The template's name.
+   */
   @RequestMapping(value = "/", method = RequestMethod.GET)
-  public String homepage(Model model) {
+  public String homepage(Model model, Locale locale) {
+    model.addAttribute("categories", shopService.getCategories(locale));
     return TEMPLATE;
   }
 }

src/main/java/de/mstock/monolith/web/ProductController.java

@@ -1,19 +1,36 @@
 package de.mstock.monolith.web;
 
+import java.util.Locale;
+
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 
+import de.mstock.monolith.service.ShopService;
+
 @Controller
 public class ProductController {
 
   private static final String TEMPLATE = "product";
 
-  @RequestMapping(value = "/products/{name:[\\w-]+}", method = RequestMethod.GET)
-  public String homepage(@PathVariable String name, Model model) {
-    model.addAttribute("name", name);
+  @Autowired
+  private ShopService shopService;
+
+  /**
+   * Product page
+   * 
+   * @param prettyUrlFragment Pretty URL fragment
+   * @param model Template model
+   * @param locale Current locale
+   * @return The template's name.
+   */
+  @RequestMapping(value = "/products/{prettyUrlFragment:[\\w-]+}", method = RequestMethod.GET)
+  public String homepage(@PathVariable String prettyUrlFragment, Model model, Locale locale) {
+    model.addAttribute("categories", shopService.getCategories(locale));
+    model.addAttribute("product", shopService.getProduct(locale, prettyUrlFragment));
     return TEMPLATE;
   }
 }

src/main/java/de/mstock/monolith/web/ProductDTO.java

@@ -0,0 +1,57 @@
+package de.mstock.monolith.web;
+
+import de.mstock.monolith.domain.ProductWeightUnit;
+
+public class ProductDTO {
+
+  private final String itemNumber;
+  private final ProductWeightUnit unit;
+  private final String name;
+  private final String prettyUrlFragment;
+  private final String price;
+  private final String description;
+
+  /**
+   * A simplified representation of a product.
+   * 
+   * @param itemNumber A product's unique item number.
+   * @param unit The unit of a product that relates to its price.
+   * @param name The localized name.
+   * @param price The product's price per unit.
+   * @param description The description of the product.
+   */
+  public ProductDTO(String itemNumber, ProductWeightUnit unit, String name,
+      String prettyUrlFragment, String price, String description) {
+    this.itemNumber = itemNumber;
+    this.unit = unit;
+    this.name = name;
+    this.prettyUrlFragment = prettyUrlFragment;
+    this.price = price;
+    this.description = description;
+  }
+
+  public String getItemNumber() {
+    return itemNumber;
+  }
+
+  public ProductWeightUnit getUnit() {
+    return unit;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public String getPrice() {
+    return price;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+  public String getPrettyUrlFragment() {
+    return prettyUrlFragment;
+  }
+
+}

src/main/resources/application.properties

@@ -3,3 +3,6 @@ spring.datasource.driverClassName=org.postgresql.Driver
 spring.datasource.url=jdbc:postgresql://${LAB_MONOLITH_DB_IP}:15432/monolith
 spring.datasource.username=monolith
 spring.datasource.password=${LAB_MONOLITH_DB_PASSWORD}
+
+spring.jpa.hibernate.ddl-auto=validate
+spring.jpa.show-sql=true

src/main/resources/db/migration/V1__create_initial_schema.sql

@@ -0,0 +1,37 @@
+create table categories (
+  id serial primary key,
+  ordinal integer not null
+);
+
+create table categories_i18n (
+  category_id integer,
+  locale_language varchar(2) not null,
+  name varchar(80) not null,
+  pretty_url_fragment varchar(31) not null,
+  primary key (category_id, locale_language)
+);
+
+create table products (
+  id serial primary key,
+  item_number varchar(8) not null,
+  unit integer not null
+);
+
+create table products_i18n (
+  product_id integer,
+  locale_language varchar(2) not null,
+  name varchar(80) not null,
+  pretty_url_fragment varchar(31) not null,
+  price numeric(10, 2) not null check (price > 0),
+  description varchar(1000),
+  primary key (product_id, locale_language)
+);
+
+create table category_products (
+  category_id integer references categories on delete cascade,
+  product_id integer references products on delete cascade,
+  ordinal integer,
+  primary key (category_id, product_id)
+);
+
+create unique index i_product_cascade on category_products(product_id, category_id);

src/main/resources/db/migration/V2__insert_data.sql

@@ -0,0 +1,41 @@
+insert into categories (id, ordinal) VALUES
+  (1, 10),
+  (2, 20);
+
+insert into categories_i18n (category_id, locale_language, name, pretty_url_fragment) values
+  (1, 'en', 'Fruits', 'fruits'),
+  (1, 'de', 'Obst', 'obst'),
+  (2, 'en', 'Vegetables', 'vegetables'),
+  (2, 'de', 'Gemüse', 'gemuese');
+
+insert into products (id, item_number, unit) values
+  (1, 'AS-62653', 1),
+  (2, 'KP-77763', 2),
+  (3, 'KL-58727', 2),
+  (4, 'RP-87973', 3),
+  (5, 'LC-52364', 2),
+  (6, 'WL-59573', 1);
+
+insert into products_i18n (product_id, locale_language, name, pretty_url_fragment, price, description) values
+  (1, 'en', 'Kiwis', 'kiwis', 0.21, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (1, 'de', 'Kiwis', 'kiwis', 0.19, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (2, 'en', 'Blueberries', 'blueberries', 2.68, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (2, 'de', 'Heidelbeeren', 'heidelbeeren', 2.52, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (3, 'en', 'Cherries', 'cherries', 1.67, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (3, 'de', 'Kirschen', 'kirschen', 1.57, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (4, 'en', 'Potatoes', 'potatoes', 1.75, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (4, 'de', 'Kartoffeln', 'kartoffeln', 1.65, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (5, 'en', 'Tomatoes', 'tomatoes', 1.18, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (5, 'de', 'Tomaten', 'tomaten', 1.11, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (6, 'en', 'Rhubarb', 'rhubarb', 1.52, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.'),
+  (6, 'de', 'Rhabarber', 'rhabarber', 1.43, 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut.');
+
+insert into category_products (category_id, product_id, ordinal) values
+  (1, 1, null),
+  (1, 2, null),
+  (1, 3, 10),
+  (1, 5, null),
+  (1, 6, null),
+  (2, 4, 10),
+  (2, 5, 20),
+  (2, 6, null);

src/main/resources/messages.properties

@@ -2,12 +2,13 @@ company = Mosh
 general.backToTop = Back to top
 general.sampleImage = Sample image
 navigation.toggle = Toggle navigation
-navigation.fruits = Fruits
-navigation.vegetables = Vegetables
 navigation.legalNotice = Legal Notice
 products.kiwis=Kiwis
 products.blueberries=Blueberries
 products.cherries=Cherries
+products.kiwis.prettyUrlFragment=kiwis
+products.blueberries.prettyUrlFragment=blueberries
+products.cherries.prettyUrlFragment=cherries
 products.goto = Go to product
 features.headline1 = Delicious Fruits.
 features.subheadline1 = It'll blow your mind.

src/main/resources/messages_de.properties

@@ -1,12 +1,13 @@
 general.backToTop = Zurück nach oben
 general.sampleImage = Beispielfoto
 navigation.toggle = Navigation umschalten
-navigation.fruits = Obst
-navigation.vegetables = Gemüse
 navigation.legalNotice = Impressum
 products.kiwis=Kiwis
-products.blueberries = Heidelbeeren
+products.blueberries=Blaubeeren
 products.cherries=Kirschen
+products.kiwis.prettyUrlFragment=kiwis
+products.blueberries.prettyUrlFragment=heidelbeeren
+products.cherries.prettyUrlFragment=kirschen
 products.goto = Zum Produkt
 features.headline1 = Frisches Obst.
 features.subheadline1 = Es wird dich umhauen.

src/main/resources/templates/category.html

@@ -17,8 +17,8 @@
   <div class="container category">
 
     <div class="row">
-      <div class="col-md-3">
-        <a href="#"><img
+      <div class="col-md-3" th:each="product, row : ${products}">
+        <a href="#" th:href="@{/products/__${product.prettyUrlFragment}__.html}"><img
           class="featurette-image img-responsive center-block"
           src="../static/images/rach-new_packaging-cc_by_2_0.jpg"
           th:src="@{/images/rach-new_packaging-cc_by_2_0.jpg}"
@@ -30,114 +30,9 @@
           </small>
         </div>
         <h5>
-          <a href="#">Product</a>
+          <a href="#" th:text="${product.name}" th:href="@{/products/__${product.prettyUrlFragment}__.html}">Product</a>
         </h5>
-        <p>0,00 Euro</p>
-      </div>
-      <div class="col-md-3">
-        <a href="#"><img
-          class="featurette-image img-responsive center-block"
-          src="../static/images/rach-new_packaging-cc_by_2_0.jpg"
-          th:src="@{/images/rach-new_packaging-cc_by_2_0.jpg}"
-          alt="Generic placeholder image" /></a>
-        <div>
-          <small class="text-muted" th:inline="text">
-            [[#{general.sampleImage}]]: Rach. <span
-            class="text-emphasized">New Packaging.</span> CC BY 2.0
-          </small>
-        </div>
-        <h5>
-          <a href="#">Product</a>
-        </h5>
-        <p>0,00 Euro</p>
-      </div>
-      <div class="col-md-3">
-        <a href="#"><img
-          class="featurette-image img-responsive center-block"
-          src="../static/images/rach-new_packaging-cc_by_2_0.jpg"
-          th:src="@{/images/rach-new_packaging-cc_by_2_0.jpg}"
-          alt="Generic placeholder image" /></a>
-        <div>
-          <small class="text-muted" th:inline="text">
-            [[#{general.sampleImage}]]: Rach. <span
-            class="text-emphasized">New Packaging.</span> CC BY 2.0
-          </small>
-        </div>
-        <h5>
-          <a href="#">Product</a>
-        </h5>
-        <p>0,00 Euro</p>
-      </div>
-      <div class="col-md-3">
-        <a href="#"><img
-          class="featurette-image img-responsive center-block"
-          src="../static/images/rach-new_packaging-cc_by_2_0.jpg"
-          th:src="@{/images/rach-new_packaging-cc_by_2_0.jpg}"
-          alt="Generic placeholder image" /></a>
-        <div>
-          <small class="text-muted" th:inline="text">
-            [[#{general.sampleImage}]]: Rach. <span
-            class="text-emphasized">New Packaging.</span> CC BY 2.0
-          </small>
-        </div>
-        <h5>
-          <a href="#">Product</a>
-        </h5>
-        <p>0,00 Euro</p>
-      </div>
-    </div>
-
-    <div class="row">
-      <div class="col-md-3">
-        <a href="#"><img
-          class="featurette-image img-responsive center-block"
-          src="../static/images/rach-new_packaging-cc_by_2_0.jpg"
-          th:src="@{/images/rach-new_packaging-cc_by_2_0.jpg}"
-          alt="Generic placeholder image" /></a>
-        <div>
-          <small class="text-muted" th:inline="text">
-            [[#{general.sampleImage}]]: Rach. <span
-            class="text-emphasized">New Packaging.</span> CC BY 2.0
-          </small>
-        </div>
-        <h5>
-          <a href="#">Product</a>
-        </h5>
-        <p>0,00 Euro</p>
-      </div>
-      <div class="col-md-3">
-        <a href="#"><img
-          class="featurette-image img-responsive center-block"
-          src="../static/images/rach-new_packaging-cc_by_2_0.jpg"
-          th:src="@{/images/rach-new_packaging-cc_by_2_0.jpg}"
-          alt="Generic placeholder image" /></a>
-        <div>
-          <small class="text-muted" th:inline="text">
-            [[#{general.sampleImage}]]: Rach. <span
-            class="text-emphasized">New Packaging.</span> CC BY 2.0
-          </small>
-        </div>
-        <h5>
-          <a href="#">Product</a>
-        </h5>
-        <p>0,00 Euro</p>
-      </div>
-      <div class="col-md-3">
-        <a href="#"><img
-          class="featurette-image img-responsive center-block"
-          src="../static/images/rach-new_packaging-cc_by_2_0.jpg"
-          th:src="@{/images/rach-new_packaging-cc_by_2_0.jpg}"
-          alt="Generic placeholder image" /></a>
-        <div>
-          <small class="text-muted" th:inline="text">
-            [[#{general.sampleImage}]]: Rach. <span
-            class="text-emphasized">New Packaging.</span> CC BY 2.0
-          </small>
-        </div>
-        <h5>
-          <a href="#">Product</a>
-        </h5>
-        <p>0,00 Euro</p>
+        <p th:text="${product.price}">1,47 Euro</p>
       </div>
     </div>
 

src/main/resources/templates/fragments/skeleton.html

@@ -36,12 +36,9 @@
           </div>
           <div id="navbar" class="navbar-collapse collapse">
             <ul class="nav navbar-nav">
-              <li th:class="${activeCategory == 'fruits'} ? 'active'"><a href="#"
-                th:href="@{/categories/fruits.html}"
-                th:text="#{navigation.fruits}">Fruits</a></li>
-              <li th:class="${activeCategory == 'vegetables'} ? 'active'"><a href="#"
-                th:href="@{/categories/vegetables.html}"
-                th:text="#{navigation.vegetables}">Vegetables</a></li>
+              <li th:each="category : ${categories}" th:class="${category.prettyUrlFragment == prettyUrlFragment} ? 'active'"><a href="#"
+                th:href="@{/categories/__${category.prettyUrlFragment}__.html}"
+                th:text="${category.name}">Category</a></li>
             </ul>
           </div>
         </div>

src/main/resources/templates/homepage.html

@@ -109,7 +109,7 @@
             class="text-emphasized">Kiwi.</span> CC BY 2.0
         </p>
         <p>
-          <a class="btn btn-default" href="products/kiwis.html"
+          <a class="btn btn-default" href="#" th:href="@{/products/__#{products.kiwis.prettyUrlFragment}__.html}"
             role="button" th:text="#{products.goto}">Go to product</a>
         </p>
       </div>
@@ -128,7 +128,7 @@
             class="text-emphasized">Blueberries.</span> CC BY 2.0
         </p>
         <p>
-          <a class="btn btn-default" href="products/blueberries.html"
+          <a class="btn btn-default" href="#" th:href="@{/products/__#{products.blueberries.prettyUrlFragment}__.html}"
             role="button" th:text="#{products.goto}">Go to product</a>
         </p>
       </div>
@@ -148,7 +148,7 @@
             class="text-emphasized">Cherries.</span> CC BY 2.0
         </p>
         <p>
-          <a class="btn btn-default" href="products/cherries.html"
+          <a class="btn btn-default" href="#" th:href="@{/products/__#{products.cherries.prettyUrlFragment}__.html}"
             role="button" th:text="#{products.goto}">Go to product</a>
         </p>
       </div>

src/main/resources/templates/product.html

@@ -30,9 +30,9 @@
         </div>
       </div>
       <div class="col-md-8">
-        <h2 th:text="${name}">Product Name</h2>
-        <p class="text-info text-uppercase">0,00 Euro</p>
-        <p class="lead">Description.</p>
+        <h2 th:text="${product.name}">Product Name</h2>
+        <p class="text-info text-uppercase" th:text="${product.price}">0,00 Euro</p>
+        <p class="lead" th:text="${product.description}">Description.</p>
         <div th:replace="fragments/reviews :: reviews"></div>
       </div>
     </div>

src/test/java/de/mstock/monolith/MonolithApplicationTests.java

@@ -1,4 +1,6 @@
-package de.mstock;
+package de.mstock.monolith;
+
+import static org.junit.Assert.assertTrue;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -10,6 +12,8 @@ import org.springframework.test.context.junit4.SpringRunner;
 public class MonolithApplicationTests {
 
   @Test
-  public void contextLoads() {}
+  public void contextLoads() {
+    assertTrue(true);
+  }
 
 }

src/test/java/de/mstock/monolith/service/ShopServiceTest.java

@@ -0,0 +1,64 @@
+package de.mstock.monolith.service;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertThat;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.RETURNS_DEEP_STUBS;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.math.BigDecimal;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Locale;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+
+import de.mstock.monolith.domain.Category;
+import de.mstock.monolith.domain.CategoryRepository;
+import de.mstock.monolith.domain.Product;
+import de.mstock.monolith.domain.ProductRepository;
+import de.mstock.monolith.web.CategoryDTO;
+import de.mstock.monolith.web.ProductDTO;
+
+@RunWith(MockitoJUnitRunner.class)
+public class ShopServiceTest {
+
+  @Mock
+  private CategoryRepository categoryRepository;
+
+  @Mock
+  private ProductRepository productRepository;
+
+  @InjectMocks
+  private ShopService shopService;
+
+  @Test
+  public void shouldGetDataTransferObjectForEveryEntity() {
+    Locale locale = new Locale("de");
+    Category category = mock(Category.class, RETURNS_DEEP_STUBS);
+    List<Category> categoryEntities = Arrays.asList(category, category, category);
+    when(categoryRepository.findAllOrdered(eq(locale.getLanguage()))).thenReturn(categoryEntities);
+    List<CategoryDTO> categories = shopService.getCategories(locale);
+    assertThat("Same amount of categories", categories.size(),
+        is(equalTo(categoryEntities.size())));
+  }
+
+  @Test
+  public void shouldFormatPrice() {
+    Locale locale = new Locale("en", "US");
+    Product product = mock(Product.class, RETURNS_DEEP_STUBS);
+    when(product.getI18n().get(anyString()).getPrice()).thenReturn(BigDecimal.valueOf(1.47));
+    when(productRepository.findByI18nName(eq(locale.getLanguage()), anyString()))
+        .thenReturn(product);
+    ProductDTO productDTO = shopService.getProduct(locale, "foo");
+    assertThat("Product has a formatted price", productDTO.getPrice(), is(equalTo("$1.47")));
+  }
+
+}