Homework 7, The Musical Artist Class.

Short Description:

This assignment is worth 10 points.

Goals

• Create and test a class that stores musical artists.

Formal Description

In preparation for this you will be implementing and testing an artist class.

1. Begin by creating a directory to hold this homework.
   • Include this Makefile
   • Include this artistTest.cpp file.
   • Include this ProjectConstants.h file.
2. The ArtistT class
   • The domain
     • The artist name, a string.
     • The artist ID, an integer
       • This is for use in the larger system.
       • It will be set to -1 initially
       • It can only be assigned one time.
     • The number of up votes an artist has received.
     • The number of down votes an artist has received.
     • An array of song ids the artist has performed.
       • This will be limited to MAX_SONGS_PER_ARTIST
     • The number of songs an artist has performed.
   • The operations
     • A constructor to create an empty artist.
     • A getter and setter for the name.
     • A getter and setter for the id.
     • A getter for the up and down votes
     • A Setter for up and down votes.
     • A getter for the number of songs
     • A setter to add an id to the song list
     • A getter for a song id
   • The UML diagram
     • 
3. Implement the header file.
   • Edit ArtistT.h
   • Include #pragma once at the top
   • We will need string so include the string library
   • We will nee ProgramConstants.h so include that as well
     • Remember to use quotes and not angle brackets.
     • 
   • Declare the class ArtistT
     • Add the public and private declarations.
     • Please put public first.
     • 
   • Add the member data to the private area
     • Use the types and the identifiers specified in the UML diagram above.
     • 
   • Add the member functions to the public area
     • Use the above UML diagram.
     • 
   • Add a function prototype for PrintArtist
     • This should take a const reference to an artist.
     • 
4. Implement the class
   • In the file ArtistT.cpp
     • The constructor
       • Set songCount, upVotes and downVotes to 0.
       • Set ArtistID to -1
     • In the observers, return the value requested.
     • In the ID setter
       • Set the id only if the current id is -1 and the new id is not negative.
     • In UpVote and DownVote
       • increment the appropriate member data variable by 1.
     • In AddSongID
       • If there is space left in the array,
         • Add the id to the end of the song list.
         • Increment the songCount variable
         • return true
       • Otherwise
         • Print the following error message

           • Maximum song count for artist name exceeded.
             Song not added.  

           • Where artist name contains the appropriate artist name.
           • No spaces at the end of the line.
           • All punctuation correct.
           • All spelling correct.
           • Both lines terminated by a newline (endl)
           • No extra endl
         • return false
     • For SongID
       • If the supplied index is in range, return the corresponding id.
       • Otherwise return -1
     • All other getters should return the appropriate value.
5. Implement the PrintArtist function
   • Print Artist Name: followed by the artist name and a newline.
   • Print a tab, Song Count: followed by the song count and a newline
   • Print a tab, Total Up Votes: followed by the upvotes and a newlone
   • Print a tab, Total Down Votes: followed by the down votes and a newline.
   • If there are any song ID registered:
     • Print a tab
     • Print Song IDs for songs by
     • Print the artists name, followed by a colon.
     • Print a comma separated list of the song is.
   • Example:

     • Artist Name: Grover
               Song Count: 3
               Total Up Votes: 10
               Total Down Votes: 1
               Song IDs for songs by Grover: 2, 4, 3 

     • artTest.out, an example file.
6. Build you own test program called myArtistTest.cpp
   • Check to make sure the default constructor works properly.
   • Check to make sure the ID setter functions properly
     • Try to set the id to a positive number twice
     • Try to set the id to a negative number
   • Check to make sure you can not insert too many song ids
     • You can not check the error message programatically
     • But you can check the return value.
   • Check to make sure you can not retrieve a song id with a bad index(too high or negative)
   • Modify the Makefile
     • Modify the objects to compile
       • The line

       • OBJS = artistTest

       • Should become

       • OBJS = artistTest myArtistTest

       • After the line

       • artistTest: ArtistT.o

       • Insert

       • myArtistTest: ArtistT.o

     • 

Required Files

If you need to communicate any further information, please include this in a text file called ReadMe in this directory.

Please do not include executables in the tar file.

Submission