Package sources.receiver

Class Receiver

java.lang.Object

sources.receiver.Receiver

public class Receiver
extends Object

The Receiver class is responsible for managing the movie collection. It uses MovieCollection to store the movies and MovieCollectionFileReader/MovieCollectionFileWriter to read/write the movies from/to the XML file.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) MovieCollectionFileReader	xmlFileReader
(package private) MovieCollectionFileWriter	xmlFileWriter

Constructor Summary

Constructors

Constructor	Description
Receiver()	Creates a new Receiver instance and initializes the collection of movies from a file.

Method Summary

Modifier and Type	Method	Description
void	clear()	Clears the movie collection.
String	info()	Returns information about the collection.
void	insert(Integer key, String movieName, Integer x, Integer y, long oscarsCount, MovieGenre movieGenre, MpaaRating mpaaRating, String directorName, LocalDateTime birthday, Integer weight, String passportID)	Inserts a new movie into the collection.
List<Movie>	printAscending()	Returns a list of movies in ascending order based on their natural order in the movie collection.
List<Movie>	printDescending()	Returns a list of movies in descending order based on their natural order in the movie collection.
List<Movie>	printFieldDescendingOscarsCount()	Returns a list of movies in descending order based on their Oscars count field in the movie collection.
void	removeGreater(String movieName, Integer x, Integer y, long oscarsCount, MovieGenre movieGenre, MpaaRating mpaaRating, String directorName, LocalDateTime birthday, Integer weight, String passportID)	Removes all elements that are greater than the specified movie from the collection.
void	removeKey(Integer key)	Removes the element with the specified key from the movie collection.
void	removeLowerKey(Integer key)	Removes all elements with keys lower than the specified key from the movie collection.
void	replaceIfLowe(Integer key, String movieName, Integer x, Integer y, long oscarsCount, MovieGenre movieGenre, MpaaRating mpaaRating, String directorName, LocalDateTime birthday, Integer weight, String passportID)	Replaces the element with the specified key with the specified movie if it is lower than the original element.
void	save()	Saves the movie collection to an XML file.
HashMap<Integer,Movie>	show()	Returns the HashMap of movies in the collection.
void	update(Integer id, String movieName, Integer x, Integer y, long oscarsCount, MovieGenre movieGenre, MpaaRating mpaaRating, String directorName, LocalDateTime birthday, Integer weight, String passportID)	Updates the information of the specified movie in the collection.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

xmlFileReader

MovieCollectionFileReader xmlFileReader

xmlFileWriter

MovieCollectionFileWriter xmlFileWriter

Constructor Details

Receiver

public Receiver()
         throws InvalidFileDataException,
FileNotFoundException,
FilePermissionException

Creates a new Receiver instance and initializes the collection of movies from a file.

Throws:

InvalidFileDataException - if the data in the file is invalid

FileNotFoundException - if the file cannot be found

FilePermissionException - if the program does not have permission to access the file

Method Details

info

public String info()

Returns information about the collection.

Returns:

a String containing information about the collection

show

public HashMap<Integer,Movie> show()

Returns the HashMap of movies in the collection.

Returns:

the HashMap of movies in the collection

insert

public void insert(Integer key,
 String movieName,
 Integer x,
 Integer y,
 long oscarsCount,
 MovieGenre movieGenre,
 MpaaRating mpaaRating,
 String directorName,
 LocalDateTime birthday,
 Integer weight,
 String passportID)
            throws CollectionKeyException,
WrongArgumentException

Inserts a new movie into the collection.

Parameters:

key - the key of the new movie

movieName - the name of the new movie

x - the x coordinate of the new movie

y - the y coordinate of the new movie

oscarsCount - the number of Oscars the new movie has won

movieGenre - the genre of the new movie

mpaaRating - the MPAA rating of the new movie

directorName - the name of the director of the new movie

birthday - the birthday of the director of the new movie

weight - the weight of the director of the new movie

passportID - the passport ID of the director of the new movie

Throws:

CollectionKeyException - if the specified key is already in use

WrongArgumentException - if any of the arguments are invalid

update

public void update(Integer id,
 String movieName,
 Integer x,
 Integer y,
 long oscarsCount,
 MovieGenre movieGenre,
 MpaaRating mpaaRating,
 String directorName,
 LocalDateTime birthday,
 Integer weight,
 String passportID)
            throws CollectionKeyException,
WrongArgumentException

Updates the information of the specified movie in the collection.

Parameters:

id - the ID of the movie to be updated

movieName - the new name of the movie

x - the new x coordinate of the movie

y - the new y coordinate of the movie

oscarsCount - the new number of Oscars the movie has won

movieGenre - the new genre of the movie

mpaaRating - the new MPAA rating of the movie

directorName - the new name of the director of the movie

birthday - the new birthday of the director of the movie

weight - the new weight of the director of the movie

passportID - the new passport ID of the director of the movie

Throws:

CollectionKeyException - if the specified ID is not found in the collection

WrongArgumentException - if any of the arguments are invalid

removeKey

public void removeKey(Integer key)
               throws CollectionKeyException

Removes the element with the specified key from the movie collection.

Parameters:

key - the key of the element to remove

Throws:

CollectionKeyException - if the specified key does not exist in the collection

clear

public void clear()

Clears the movie collection.

save

public void save()

Saves the movie collection to an XML file.

removeGreater

public void removeGreater(String movieName,
 Integer x,
 Integer y,
 long oscarsCount,
 MovieGenre movieGenre,
 MpaaRating mpaaRating,
 String directorName,
 LocalDateTime birthday,
 Integer weight,
 String passportID)
                   throws WrongArgumentException

Removes all elements that are greater than the specified movie from the collection.

Parameters:

movieName - the name of the movie to compare

x - the x-coordinate of the movie to compare

y - the y-coordinate of the movie to compare

oscarsCount - the number of Oscars won by the movie to compare

movieGenre - the genre of the movie to compare

mpaaRating - the MPAA rating of the movie to compare

directorName - the name of the movie director to compare

birthday - the birthdate of the movie director to compare

weight - the weight of the movie director to compare

passportID - the passport ID of the movie director to compare

Throws:

WrongArgumentException - if any of the specified arguments are invalid

replaceIfLowe

public void replaceIfLowe(Integer key,
 String movieName,
 Integer x,
 Integer y,
 long oscarsCount,
 MovieGenre movieGenre,
 MpaaRating mpaaRating,
 String directorName,
 LocalDateTime birthday,
 Integer weight,
 String passportID)
                   throws CollectionKeyException,
WrongArgumentException

Replaces the element with the specified key with the specified movie if it is lower than the original element.

Parameters:

key - the key of the element to replace

movieName - the name of the movie to replace the original element with

x - the x-coordinate of the movie to replace the original element with

y - the y-coordinate of the movie to replace the original element with

oscarsCount - the number of Oscars won by the movie to replace the original element with

movieGenre - the genre of the movie to replace the original element with

mpaaRating - the MPAA rating of the movie to replace the original element with

directorName - the name of the movie director to replace the original element with

birthday - the birthdate of the movie director to replace the original element with

weight - the weight of the movie director to replace the original element with

passportID - the passport ID of the movie director to replace the original element with

Throws:

CollectionKeyException - if the specified key does not exist in the collection

WrongArgumentException - if any of the specified arguments are invalid

removeLowerKey

public void removeLowerKey(Integer key)

Removes all elements with keys lower than the specified key from the movie collection.

Parameters:

key - the key to compare with

printAscending

public List<Movie> printAscending()

Returns a list of movies in ascending order based on their natural order in the movie collection.

Returns:

a list of movies in ascending order

printDescending

public List<Movie> printDescending()

Returns a list of movies in descending order based on their natural order in the movie collection.

Returns:

a list of movies in descending order

printFieldDescendingOscarsCount

public List<Movie> printFieldDescendingOscarsCount()

Returns a list of movies in descending order based on their Oscars count field in the movie collection.

Returns:

a list of movies in descending order based on their Oscars count field