bif/java-movieservice
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Added checking by import of movies, if actors and studio are already in the database. Birthday needs to be add for checking. Maybe check if movie already exists? All or none principle needs checking

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This commit is contained in:
Barbara 2019-11-28 19:24:14 +01:00
parent a870c28d21
commit 7c0cb4150d
5 changed files with 116 additions and 33 deletions
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24
MoviesCommon/src/main/java/at.technikumwien.movies/Actors.java
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@ -13,14 +13,20 @@ import java.time.LocalDate;
@Entity
@Table(name = "t_actors")
@NamedQuery(
name = "Actors.getIdByProperties",
query = "SELECT a.id FROM Actors a WHERE " +
"a.firstname LIKE :firstname AND " +
"a.lastname LIKE :lastname AND " +
"a.sex = :sex AND " +
"a.birthdate = :birthdate"
)
@NamedQueries({
@NamedQuery(
name = "Actors.getIdByProperties",
query = "SELECT a FROM Actors a WHERE " +
"a.firstname LIKE :firstname AND " +
"a.lastname LIKE :lastname AND " +
"a.sex = :sex"// AND " +
//"a.birthdate = :birthdate"
),
@NamedQuery(
name = "Actors.selectAllActors",
query = "SELECT n FROM Actors n"
)
})
@XmlRootElement
public class Actors {
@XmlAttribute(name = "id")
@ -37,7 +43,7 @@ public class Actors {
@Column(nullable = false)
private Sex sex;
@Column(nullable = false)
//@Column(nullable = false)
private LocalDate birthdate;
public Actors(String firstname, String lastname, Sex sex, LocalDate birthdate) {

20
MoviesCommon/src/main/java/at.technikumwien.movies/Movies.java
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@ -5,7 +5,6 @@ import lombok.*;
import javax.persistence.*;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlRootElement;
import java.util.Calendar;
import java.util.List;
@Data
@ -14,14 +13,17 @@ import java.util.List;
@Entity
@Table(name = "t_movies")
@NamedQuery(
name = "Movies.selectAll",
query = "SELECT n FROM Movies n"
)
@NamedQuery(
name = "Movies.selectByTitle",
query = "SELECT n FROM Movies n WHERE n.title LIKE :title"
)
@NamedQueries({
@NamedQuery(
name = "Movies.selectAll",
query = "SELECT n FROM Movies n"
),
@NamedQuery(
name = "Movies.selectByTitle",
query = "SELECT n FROM Movies n WHERE n.title LIKE :title"
)
})
@XmlRootElement
public class Movies {
// TODO: XmlAttributes may need different names

13
MoviesCommon/src/main/java/at.technikumwien.movies/Studios.java
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@ -10,6 +10,19 @@ import javax.persistence.*;
@Entity
@Table(name = "t_studios")
@NamedQueries({
@NamedQuery(
name = "Studios.getIdByProperties",
query = "SELECT a FROM Studios a WHERE " +
"a.countrycode LIKE :countrycode AND " +
"a.name LIKE :name AND " +
"a.postcode LIKE :postcode"
),
@NamedQuery(
name = "Studios.selectAllStudios",
query = "SELECT n FROM Studios n"
)
})
public class Studios {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)

88
MoviesWebApp/src/main/java/at/technikumwien/movies/MoviesService.java
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@ -5,11 +5,11 @@ import javax.ejb.*;
import javax.persistence.EntityManager;
import javax.persistence.EntityNotFoundException;
import javax.persistence.PersistenceContext;
import java.sql.ResultSet;
import java.util.List;
import java.util.logging.Logger;
@Stateless
@TransactionManagement(value=TransactionManagementType.CONTAINER)
public class MoviesService {
private static final Logger LOGGER = Logger.getLogger(MoviesService.class.getName());
@ -52,18 +52,80 @@ public class MoviesService {
em.remove(movies); //managed news required
}
public void save(Movies movies) {
// // TODO
// for (Actors actor : movies.getActors()) {
// ResultSet rs = em.createNamedQuery("Actors.getIdByParameters", Actors.class)
// .setParameter() // TODO
// .getResultList();
//
// // Check if we have a result, if yes -> take first, actor.id = resultID
// // If no result: context.setRollbackOnly();
// }
LOGGER.info("save() >> movies" + movies);
public List<Actors> findAllActors() {
LOGGER.info("findAllActors)");
em.merge(movies);
return em.createNamedQuery("Actors.selectAllActors", Actors.class)
.getResultList();
}
public List<Studios> findAllStudios() {
LOGGER.info("findAllStudios)");
return em.createNamedQuery("Studios.selectAllStudios", Studios.class)
.getResultList();
}
// TODO maybe check if the movie already exists?
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
public void save(Movies movie) {
// TODO maybe get just the id and improve checking in for loop?
// Get all actors and studios from the database
List<Actors> allActors = findAllActors();
List<Studios> allStudios = findAllStudios();
try {
// Get studio for the movie from the database
Studios movieStudio = movie.getStudio();
// If the studio is missing in the database, roll back only
for (Studios studio : allStudios) {
if (studio.getName().equals(movieStudio.getName()) & studio.getCountrycode().equals(movieStudio.getCountrycode())
& studio.getPostcode().equals(movieStudio.getPostcode())) {
// Set id
movieStudio.setId(studio.getId());
}
}
if (movieStudio.getId() == null) {
LOGGER.info("Rollback! Movie studio: " + movieStudio);
context.setRollbackOnly();
return;
}
// TODO use also birthday
// Get actor for the movie from the database
for (Actors movieActor : movie.getActors()) {
LOGGER.info("Get an actor " + movieActor);
List actorListResult = em.createNamedQuery("Actors.getIdByProperties", Actors.class)
.setParameter("firstname", movieActor.getFirstname())
.setParameter("lastname", movieActor.getLastname())
.setParameter("sex", movieActor.getSex())
//.setParameter("birthdate", movieActor.getBirthdate())
.getResultList();
// If any actor is missing in the database, roll back only
for (Actors actor : allActors) {
if (actor.getFirstname().equals(movieActor.getFirstname())
& actor.getLastname().equals(movieActor.getLastname())
& actor.getSex().equals(movieActor.getSex())) {
// & actor.getBirthdate().equals(movieActor.getBirthdate())) {
// Set id
movieActor.setId(actor.getId());
}
if (movieActor.getId() == null) {
LOGGER.info("Rollback! Movie actor: " + movieActor);
context.setRollbackOnly();
return;
}
}
LOGGER.info("save() >> movies" + movie);
em.merge(movie);
}
}
catch (Exception e) {
e.printStackTrace();
}
}
}

4
MoviesWebApp/src/main/java/at/technikumwien/movies/MoviesServlet.java
View File

@ -25,8 +25,8 @@ public class MoviesServlet extends HttpServlet {
"<body>" +
"<h1>Movies</h1>");
moviesService.findAll().forEach(news -> html.append("<h2>" + news.getTitle() + "</h2>" +
"<p>" + news.getTitle() + "</p>"));
moviesService.findAll().forEach(movies -> html.append("<h2>" + movies.getTitle() + "</h2>" +
"<p>" + movies.getActors() + "</p>"));
html.append("</body>" +
"</html>");