Added dices on session controller and improved PetService.

In orded to illustrate the use of sesion context we have created  the DicesOnSessionController. Additionally we have improved the implementation of savePet (in PetService), and added a new PetType (turtles!)

src/main/java/org/springframework/samples/petclinic/configuration/SecurityConfiguration.java

@@ -36,6 +36,7 @@ protected void configure(HttpSecurity http) throws Exception {
 				.antMatchers("/resources/**","/webjars/**","/h2-console/**").permitAll()
 				.antMatchers(HttpMethod.GET, "/","/oups").permitAll()
 				.antMatchers("/users/new").permitAll()
+				.antMatchers("/session/**").permitAll()
 				.antMatchers("/admin/**").hasAnyAuthority("admin")
 				.antMatchers("/owners/**").hasAnyAuthority("owner","admin")				
 				.antMatchers("/vets/**").authenticated()

src/main/java/org/springframework/samples/petclinic/pet/PetService.java

@@ -62,11 +62,14 @@ public Pet findPetById(int id) throws DataAccessException {
 
 	@Transactional(rollbackFor = DuplicatedPetNameException.class)
 	public void savePet(Pet pet) throws DataAccessException, DuplicatedPetNameException {
-			Pet otherPet=pet.getOwner().getPetwithIdDifferent(pet.getName(), pet.getId());
-            if (StringUtils.hasLength(pet.getName()) &&  (otherPet!= null && otherPet.getId()!=pet.getId())) {            	
-            	throw new DuplicatedPetNameException();
-            }else
-                petRepository.save(pet);                
+			if(pet.getOwner()!=null){
+				Pet otherPet=pet.getOwner().getPetwithIdDifferent(pet.getName(), pet.getId());
+            	if (StringUtils.hasLength(pet.getName()) &&  (otherPet!= null && otherPet.getId()!=pet.getId())) {            	
+            		throw new DuplicatedPetNameException();
+            	}else
+                	petRepository.save(pet);                
+			}else
+				petRepository.save(pet);
 	}
 
 

src/main/java/org/springframework/samples/petclinic/web/DicesOnSessionController.java

@@ -0,0 +1,32 @@
+package org.springframework.samples.petclinic.web;
+
+import javax.servlet.http.HttpSession;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+@Controller
+public class DicesOnSessionController {
+
+    public static int NUM_DICES=5;
+    public static int NUM_DICES_SIDES=6;
+
+    @GetMapping("/session/rolldices")
+    public @ResponseBody Integer[] rollDices(HttpSession session){
+        Integer[] dices=new Integer[NUM_DICES];
+        for(int i=0;i<NUM_DICES;i++)
+            dices[i]=1+(int)Math.floor(Math.random()*NUM_DICES_SIDES);
+        session.setAttribute("dices", dices);
+        return dices;
+    }
+
+    @GetMapping("/session/sumdices")
+    public @ResponseBody Integer sumDices(HttpSession session){
+        Integer[] dices=(Integer[])session.getAttribute("dices");
+        Integer result=0;
+        for(int i=0;i<NUM_DICES;i++)
+            result+=dices[i];
+        return result;
+    }
+}

src/main/resources/db/hsqldb/data.sql

@@ -31,6 +31,7 @@ INSERT INTO types VALUES (3, 'lizard');
 INSERT INTO types VALUES (4, 'snake');
 INSERT INTO types VALUES (5, 'bird');
 INSERT INTO types VALUES (6, 'hamster');
+INSERT INTO types VALUES (7, 'turtle');
 
 INSERT INTO owners VALUES (1, 'George', 'Franklin', '110 W. Liberty St.', 'Madison', '6085551023', 'owner1');
 INSERT INTO owners VALUES (2, 'Betty', 'Davis', '638 Cardinal Ave.', 'Sun Prairie', '6085551749', 'owner1');