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Merge pull request #69 from CSC207-2022F-UofT/features/DataAccess
Data Access
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| # AWS User-specific | ||
| .idea/**/aws.xml | ||
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| # Mac-specfic stuff | ||
| # Mac Specific | ||
| .DS_Store | ||
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| # Generated files | ||
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70 changes: 70 additions & 0 deletions
70
src/main/java/com/mg105/data_control/access/MoveDataAccess.java
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| package com.mg105.data_control.access; | ||
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| import com.mg105.outputds.MoveDetails; | ||
| import com.opencsv.CSVParser; | ||
| import com.opencsv.CSVParserBuilder; | ||
| import com.opencsv.CSVReader; | ||
| import com.opencsv.CSVReaderBuilder; | ||
| import com.opencsv.exceptions.CsvException; | ||
| import org.jetbrains.annotations.NotNull; | ||
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| import java.io.FileReader; | ||
| import java.io.IOException; | ||
| import java.util.List; | ||
| import java.util.NoSuchElementException; | ||
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| import static com.mg105.utils.DataAccessConstants.*; | ||
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| /** | ||
| * This is a class mean to interact and get information about moves from a "database" | ||
| * <p> | ||
| * This class is really only here so PartyDataAccess does not violate Single Responsibility Principle and to | ||
| * help satisfy open and closed principle in PartyDataAccess | ||
| */ | ||
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| public class MoveDataAccess { | ||
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| /** | ||
| * Returns an object that represents the details of the move desired | ||
| * | ||
| * @param name the name of move to return the details of | ||
| * @return an object that represents the details of the move desired | ||
| * @throws NoSuchElementException iff the move's details are not found (move does not exist) | ||
| * @see MoveDetails | ||
| */ | ||
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| public @NotNull MoveDetails getMoveDetails(String name) throws NoSuchElementException { | ||
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| try { | ||
| CSVParser parser = new CSVParserBuilder().withSeparator(',').build(); | ||
| CSVReader reader = new CSVReaderBuilder(new FileReader(MOVE_DATA_PATH)).withCSVParser(parser).build(); | ||
| List<String[]> partyStats = reader.readAll(); | ||
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| for (String[] moveDetails : partyStats) { | ||
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| if (moveDetails[0].equals(name)) { | ||
| int healthChange = Integer.parseInt(moveDetails[1]); | ||
| int damageChange = Integer.parseInt(moveDetails[2]); | ||
| boolean isFriendly = moveDetails[3].equals(IS_TRUE); | ||
| reader.close(); | ||
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| return new MoveDetails(name, healthChange, damageChange, isFriendly); | ||
| } | ||
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| } | ||
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| reader.close(); | ||
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| } catch (IOException e) { | ||
| System.out.println("Could not find file"); | ||
| e.printStackTrace(); | ||
| } catch (CsvException e) { | ||
| e.printStackTrace(); | ||
| } | ||
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| throw new NoSuchElementException("No move of this name exists"); | ||
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| } | ||
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| } |
183 changes: 183 additions & 0 deletions
183
src/main/java/com/mg105/data_control/access/PartyDataAccess.java
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| package com.mg105.data_control.access; | ||
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| import com.mg105.outputds.BattleCharacterDetails; | ||
| import com.mg105.outputds.MoveDetails; | ||
| import com.mg105.use_cases.save.PartyDataInterface; | ||
| import com.mg105.utils.PartyConstants; | ||
| import com.mg105.utils.StatConstants; | ||
| import com.opencsv.*; | ||
| import com.opencsv.exceptions.CsvException; | ||
| import org.jetbrains.annotations.NotNull; | ||
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| import java.io.FileReader; | ||
| import java.io.FileWriter; | ||
| import java.io.IOException; | ||
| import java.util.List; | ||
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| import static com.mg105.utils.DataAccessConstants.PARTY_DATA_PATH; | ||
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| public class PartyDataAccess implements PartyDataInterface { | ||
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| private final static int NUMBER_OF_MOVES_PER_CHARACTER = 2; | ||
| private final MoveDataAccess moveDataAccess; | ||
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| public static void main(String[] args){ | ||
| PartyDataAccess p = new PartyDataAccess(new MoveDataAccess()); | ||
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| System.out.println(p.getPartyBattleDetails()[0].getName()); | ||
| } | ||
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| public PartyDataAccess(MoveDataAccess moveDataAccess) { | ||
| // Could define a new moveDataAccess here but it is passed in to follow dependency inversion | ||
| this.moveDataAccess = moveDataAccess; | ||
| } | ||
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| /** | ||
| * Updates the given stat of the given party member to the value provided | ||
| * <p> | ||
| * Precondition(s): name is the name of some party member and stat is the name of a valid stat | ||
| * | ||
| * @param name name of the character to change the stat of | ||
| * @param stat the name of the stat to change | ||
| * @param value the value to change that stat to | ||
| */ | ||
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| @Override | ||
| public void changeCharacterStat(@NotNull String name, @NotNull String stat, int value) { | ||
| try { | ||
| CSVParser parser = new CSVParserBuilder().withSeparator(',').build(); | ||
| CSVReader reader = new CSVReaderBuilder(new FileReader(PARTY_DATA_PATH)).withCSVParser(parser).build(); | ||
| List<String[]> partyStats = reader.readAll(); | ||
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| // Setting which value to change in the file by reading | ||
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| for (String[] memberStats : partyStats) { | ||
| if (memberStats[0].equals(name)) { | ||
| int i = getColumnNumber(stat); | ||
| System.out.println(i); | ||
| if (i == -1) { | ||
| // Occurs when an invalid stat argument is passed | ||
| reader.close(); | ||
| return; | ||
| } | ||
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| if (memberStats[i].equals(String.valueOf(value))) { | ||
| // value of stat to change is the same as the "New" value | ||
| reader.close(); | ||
| return; | ||
| } | ||
| memberStats[i] = String.valueOf(value); | ||
| break; | ||
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| } | ||
| } | ||
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| reader.close(); | ||
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| // Changing that value in the file | ||
| CSVWriter writer = new CSVWriter(new FileWriter(PARTY_DATA_PATH), ',', | ||
| CSVWriter.NO_QUOTE_CHARACTER, | ||
| CSVWriter.DEFAULT_ESCAPE_CHARACTER, | ||
| CSVWriter.DEFAULT_LINE_END); | ||
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| // Writing the entire file might be expensive but this works | ||
| writer.writeAll(partyStats); | ||
| writer.flush(); | ||
| writer.close(); | ||
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| } catch (IOException e) { | ||
| System.out.println("Could not find file"); | ||
| e.printStackTrace(); | ||
| } catch (CsvException e) { | ||
| e.printStackTrace(); | ||
| } | ||
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| } | ||
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| /** | ||
| * Returns an array of objects that each represent the battle attributes of a single party member | ||
| * | ||
| * @return an array of objects that each represent the battle attributes of a single party member | ||
| * @see BattleCharacterDetails | ||
| */ | ||
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| @Override | ||
| public @NotNull BattleCharacterDetails[] getPartyBattleDetails() { | ||
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| BattleCharacterDetails[] res = new BattleCharacterDetails[PartyConstants.ALL_PARTY_MEMBER_NAMES.length]; | ||
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| try { | ||
| CSVParser parser = new CSVParserBuilder().withSeparator(',').build(); | ||
| CSVReader reader = new CSVReaderBuilder(new FileReader(PARTY_DATA_PATH)).withCSVParser(parser).build(); | ||
| List<String[]> partyStats = reader.readAll(); | ||
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| // Starts at one since first line is just the variable names (same reason for + 1) | ||
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| for (int i = 1; i < PartyConstants.ALL_PARTY_MEMBER_NAMES.length + 1; i++) { | ||
| String[] memberAttributes = partyStats.get(i); | ||
| String name = memberAttributes[0]; | ||
| int maxHp = Integer.parseInt(memberAttributes[1]); | ||
| int dmg = Integer.parseInt(memberAttributes[2]); | ||
| int speed = Integer.parseInt(memberAttributes[3]); | ||
| MoveDetails[] moveDetails = moveDetails(memberAttributes); | ||
| // All party members are always not opponents so that why false is hard coded | ||
| res[i - 1] = new BattleCharacterDetails(name, maxHp, dmg, speed, false, moveDetails); | ||
| } | ||
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| reader.close(); | ||
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| } catch (IOException e) { | ||
| System.out.println("Could not find file"); | ||
| e.printStackTrace(); | ||
| } catch (CsvException e) { | ||
| e.printStackTrace(); | ||
| } | ||
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| return res; | ||
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| } | ||
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| private @NotNull MoveDetails[] moveDetails(String[] memberAttributes) { | ||
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| return getMoveDetails(getMoveNames(memberAttributes)); | ||
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| } | ||
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| private @NotNull String[] getMoveNames(String[] memberAttributes) { | ||
| String[] names = new String[NUMBER_OF_MOVES_PER_CHARACTER]; | ||
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| System.arraycopy(memberAttributes, memberAttributes.length - 2, names, | ||
| 0, NUMBER_OF_MOVES_PER_CHARACTER); | ||
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| return names; | ||
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| } | ||
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| private @NotNull MoveDetails[] getMoveDetails(String[] moveNames) { | ||
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| // moveNames should have the same length as NUMBER_OF_MOVES_PER_CHARACTER | ||
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| MoveDetails[] details = new MoveDetails[NUMBER_OF_MOVES_PER_CHARACTER]; | ||
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| for (int i = 0; i < NUMBER_OF_MOVES_PER_CHARACTER; i++) { | ||
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| details[i] = moveDataAccess.getMoveDetails(moveNames[i]); | ||
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| } | ||
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| return details; | ||
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| } | ||
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| private int getColumnNumber(String rowName) { | ||
| return switch (rowName) { | ||
| case StatConstants.MAX_HP -> 1; | ||
| case StatConstants.DAMAGE -> 2; | ||
| case StatConstants.SPEED -> 3; | ||
| default -> -1; | ||
| }; | ||
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| } | ||
| } |
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