Entity, DAO and Resources for Pets

src/main/java/es/uvigo/esei/daa/dao/PetDAO.java

+package es.uvigo.esei.daa.dao;
+
+import es.uvigo.esei.daa.entities.Pet;
+
+public class PetDAO extends GenericDAO<Pet> {
+	
+}

src/main/java/es/uvigo/esei/daa/entities/Pet.java

+package es.uvigo.esei.daa.entities;
+
+import java.io.Serializable;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.ManyToOne;
+import javax.validation.constraints.Size;
+
+@Entity
+public class Pet implements Serializable {
+	
+	@Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    Long id;
+	
+	@Size(min = 0, max = 30)
+    @Column(length = 30, nullable = false)
+	String name;
+	
+	@Size(min = 0, max = 30)
+    @Column(length = 30, nullable = false)
+	private String kind;
+	
+	@Size(min = 0, max = 30)
+    @Column(length = 30, nullable = false)
+	private String breed;
+	
+	@ManyToOne
+	Person owner;
+	
+	Pet(){}
+	
+	public Pet(int id, String name, String kind, String breed, Person owner) {
+		this.setName(name);
+		this.setKind(kind);
+		this.setBreed(breed);
+		this.setOwner(owner);
+	}
+	
+	public Long getId() {
+		return id;
+	}
+	
+	public String getName() {
+		return name;
+	}
+	
+	public void setName(String name) {
+		this.name = name;
+	}
+	
+	public String getKind() {
+		return kind;
+	}
+	
+	public void setKind(String kind) {
+		this.kind = kind;
+	}
+	
+	public String getBreed() {
+		return breed;
+	}
+	
+	public void setBreed(String breed) {
+		this.breed = breed;
+	}
+	
+	public Person getOwner() {
+		return owner;
+	}
+	
+	public void setOwner(Person owner) {
+		this.owner = owner;
+	}
+	
+	@Override
+	public int hashCode() {
+		final int prime = 31;
+		int result = 1;
+		result = (int) (prime * result + id);
+		return result;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj)
+			return true;
+		if (obj == null)
+			return false;
+		if (!(obj instanceof Pet))
+			return false;
+		Pet other = (Pet) obj;
+		if (id != other.id)
+			return false;
+		return true;
+	}
+}

src/main/java/es/uvigo/esei/daa/rest/PetsResource.java

+package es.uvigo.esei.daa.rest;
+
+import javax.inject.Inject;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.DELETE;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.GenericEntity;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.UriInfo;
+
+import java.net.URI;
+import java.util.List;
+
+import es.uvigo.esei.daa.dao.PetDAO;
+import es.uvigo.esei.daa.entities.Pet;
+
+@Path("/pets")
+@Produces(MediaType.APPLICATION_JSON)
+public class PetsResource {
+	@Inject PetDAO petDAO;
+	
+	@Context
+    private UriInfo uriInfo;
+	
+	public PetsResource() {
+		
+	}
+	
+    @GET
+    @Produces({MediaType.APPLICATION_JSON})
+    public Response searchPets() {
+        List<Pet> pets = petDAO.buscarTodos();
+        GenericEntity<List<Pet>> entidadJSON = new GenericEntity<List<Pet>>(pets) {};
+        return Response.ok(entidadJSON).build();
+    }
+    
+    @GET
+    @Produces({MediaType.APPLICATION_JSON})
+    @Path("{id:[0­9]+}")
+    public Response  buscarAutor(@PathParam("id") Long id) {
+        Pet pet = petDAO.buscarPorId(id);
+        if (pet != null) {
+            return Response.ok(pet).build();
+        } else {
+            return Response.status(Response.Status.NOT_FOUND).build();
+        }
+    }
+	
+    @POST
+    @Consumes({MediaType.APPLICATION_JSON})
+    public Response createPet(Pet pet) {
+        try {
+            Pet newPet = petDAO.crear(pet);
+            URI newPetURI = uriInfo.getAbsolutePathBuilder().path(newPet.getId().toString()).build();
+            return Response.created(newPetURI).build();
+        } catch (Exception e) {
+            return Response.status(Response.Status.INTERNAL_SERVER_ERROR).build();
+        }
+    }
+    
+    @PUT
+    @Consumes({MediaType.APPLICATION_JSON})
+    @Path("{id:[0­9]+}")
+    public Response updatePet(Pet pet) {
+        try {
+            petDAO.actualizar(pet);
+            return Response.noContent().build();
+        } catch (Exception e) {
+            return Response.status(Response.Status.INTERNAL_SERVER_ERROR).build();
+        }
+    }
+    
+    @DELETE
+    @Path("{id:[0­9]+}")
+    public Response deletePet(@PathParam("id") Long id) {
+        Pet pet = petDAO.buscarPorId(id);
+        if (pet != null) {
+            petDAO.eliminar(pet);
+            return Response.noContent().build();
+        } else {
+            return Response.status(Response.Status.NOT_FOUND).build();
+        }
+    }
+	
+}