Bael 1277 (#3379)

* BAEL-1277: RESTFul CRUD application with JavaLite.

* BAEL-1277: RESTFul CRUD application with JavaLite. Adding exception handling.

* BAEL-1277: Changes after editors review.

java-lite/pom.xml

@@ -7,6 +7,7 @@
     <groupId>org.baeldung</groupId>
     <artifactId>java-lite</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <packaging>war</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -15,7 +16,7 @@
     </parent>
 
     <properties>
-        <jetty.maven.plugin.version>9.3.4.RC1</jetty.maven.plugin.version>
+        <jetty.maven.plugin.version>9.4.8.v20171121</jetty.maven.plugin.version>
         <activejdbc.version>1.4.13</activejdbc.version>
         <activeweb.version>1.15</activeweb.version>
         <mysql.connector.java.version>5.1.45</mysql.connector.java.version>
@@ -85,16 +86,6 @@
             <systemPath>${java.home}/../lib/tools.jar</systemPath>
         </dependency>
 
-        <dependency>
-            <groupId>org.codehaus.jackson</groupId>
-            <artifactId>jackson-core-lgpl</artifactId>
-            <version>${jackson.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.codehaus.jackson</groupId>
-            <artifactId>jackson-mapper-lgpl</artifactId>
-            <version>${jackson.version}</version>
-        </dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>

java-lite/src/main/java/app/config/AppControllerConfig.java

@@ -9,7 +9,7 @@ import org.javalite.activeweb.controller_filters.TimingFilter;
 public class AppControllerConfig extends AbstractControllerConfig {
     @Override
     public void init(AppContext appContext) {
-      addGlobalFilters(new TimingFilter());
+        addGlobalFilters(new TimingFilter());
-      add(new DBConnectionFilter()).to(ProductsController.class);
+        add(new DBConnectionFilter()).to(ProductsController.class);
     }
 }

java-lite/src/main/java/app/config/DbConfig.java

@@ -6,6 +6,6 @@ import org.javalite.activeweb.AppContext;
 public class DbConfig extends AbstractDBConfig {
     @Override
     public void init(AppContext appContext) {
-      this.configFile("/database.properties");
+        this.configFile("/database.properties");
     }
 }

java-lite/src/main/java/app/controllers/ProductsController.java

@@ -10,92 +10,94 @@ import java.util.Map;
 @RESTful
 public class ProductsController extends AppController {
 
+    private ObjectMapper mapper = new ObjectMapper();
+
     public void index() {
-      try {
+        try {
-        view("products", Product.findAll());
+            view("products", Product.findAll());
-        render().contentType("application/json");
+            render().contentType("application/json");
-      } catch (Exception e) {
+        } catch (Exception e) {
-        view("message", "There was an error.", "code", 200);
+            view("message", "There was an error.", "code", 200);
-        render("message");
+            render("message");
-      }
+        }
     }
 
     public void create() {
-      try {
+        try {
-        Map payload = new ObjectMapper().readValue(getRequestString(), Map.class);
+            Map payload = mapper.readValue(getRequestString(), Map.class);
-        Product p = new Product();
+            Product p = new Product();
-        p.fromMap(payload);
+            p.fromMap(payload);
-        p.saveIt();
+            p.saveIt();
-        view("message", "Successfully saved product id " + p.get("id"), "code", 200);
+            view("message", "Successfully saved product id " + p.get("id"), "code", 200);
-        render("message");
+            render("message");
-      } catch (Exception e) {
+        } catch (Exception e) {
-        view("message", "There was an error.", "code", 200);
+            view("message", "There was an error.", "code", 200);
-        render("message");
+            render("message");
-      }
+        }
     }
 
     public void update() {
-      try {
+        try {
-        Map payload = new ObjectMapper().readValue(getRequestString(), Map.class);
+            Map payload = mapper.readValue(getRequestString(), Map.class);
-        String id = getId();
+            String id = getId();
-        Product p = Product.findById(id);
+            Product p = Product.findById(id);
-        if (p == null) {
+            if (p == null) {
-          view("message", "Product id " + id + " not found.", "code", 200);
+                view("message", "Product id " + id + " not found.", "code", 200);
-          render("message");
+                render("message");
-          return;
+                return;
+            }
+            p.fromMap(payload);
+            p.saveIt();
+            view("message", "Successfully updated product id " + id, "code", 200);
+            render("message");
+        } catch (Exception e) {
+            view("message", "There was an error.", "code", 200);
+            render("message");
         }
-        p.fromMap(payload);
-        p.saveIt();
-        view("message", "Successfully updated product id " + id, "code", 200);
-        render("message");
-      } catch (Exception e) {
-        view("message", "There was an error.", "code", 200);
-        render("message");
-      }
     }
 
     public void show() {
-      try {
+        try {
-        String id = getId();
+            String id = getId();
-        Product p = Product.findById(id);
+            Product p = Product.findById(id);
-        if (p == null) {
+            if (p == null) {
-          view("message", "Product id " + id + " not found.", "code", 200);
+                view("message", "Product id " + id + " not found.", "code", 200);
-          render("message");
+                render("message");
-          return;
+                return;
+            }
+            view("product", p);
+            render("_product");
+        } catch (Exception e) {
+            view("message", "There was an error.", "code", 200);
+            render("message");
         }
-        view("product", p);
-        render("_product");
-      } catch (Exception e) {
-        view("message", "There was an error.", "code", 200);
-        render("message");
-      }
     }
 
     public void destroy() {
-      try {
+        try {
-        String id = getId();
+            String id = getId();
-        Product p = Product.findById(id);
+            Product p = Product.findById(id);
-        if (p == null) {
+            if (p == null) {
-          view("message", "Product id " + id + " not found.", "code", 200);
+                view("message", "Product id " + id + " not found.", "code", 200);
-          render("message");
+                render("message");
-          return;
+                return;
+            }
+            p.delete();
+            view("message", "Successfully deleted product id " + id, "code", 200);
+            render("message");
+        } catch (Exception e) {
+            view("message", "There was an error.", "code", 200);
+            render("message");
         }
-        p.delete();
-        view("message", "Successfully deleted product id " + id, "code", 200);
-        render("message");
-      } catch (Exception e) {
-        view("message", "There was an error.", "code", 200);
-        render("message");
-      }
     }
 
     @Override
     protected String getContentType() {
-      return "application/json";
+        return "application/json";
     }
 
     @Override
     protected String getLayout() {
-      return null;
+        return null;
     }
 }

java-lite/src/test/java/app/models/ProductTest.java

@@ -8,18 +8,18 @@ public class ProductTest {
 
     //@Test
     public void givenSavedProduct_WhenFindFirst_ThenSavedProductIsReturned() {
-      //Open DB connection
+        //Open DB connection
-      Base.open("com.mysql.jdbc.Driver", "jdbc:mysql://localhost/dbname", "user", "password");
+        Base.open("com.mysql.jdbc.Driver", "jdbc:mysql://localhost/dbname", "user", "password");
 
-      //Create a product and save it
+        //Create a product and save it
-      Product toSaveProduct = new Product();
+        Product toSaveProduct = new Product();
-      toSaveProduct.set("name", "Bread");
+        toSaveProduct.set("name", "Bread");
-      toSaveProduct.saveIt();
+        toSaveProduct.saveIt();
 
-      //Find product
+        //Find product
-      Product savedProduct = Product.findFirst("name = ?", "Bread");
+        Product savedProduct = Product.findFirst("name = ?", "Bread");
 
-      Assert.assertEquals(toSaveProduct.get("name"), savedProduct.get("name"));
+        Assert.assertEquals(toSaveProduct.get("name"), savedProduct.get("name"));
     }
 
 }