1 files changed, 210 insertions, 0 deletions
diff --git a/src/de/ostfalia/algo/ws18/base/Member.java b/src/de/ostfalia/algo/ws18/base/Member.java
new file mode 100644
index 0000000..5e24b81
--- /dev/null
+++ b/src/de/ostfalia/algo/ws18/base/Member.java
@@ -0,0 +1,210 @@
+package de.ostfalia.algo.ws18.base;
+
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+
+public class Member implements IMember {
+	/**
+	 * Schlüssel kodiert als:
+	 *   Anfangsbuchstabe des Namens, codiert in
+	 *     zwei Dezimalziffern a -> 01, b -> 02, …, z -> 26.
+	 *     Diese Zuordnung gilt für Groß- und Kleinbuchstaben,
+	 *     Umlaute werden als ae, oe, ue dargestellt.
+	 *   Anfangsbuchstabe des Vornamens, codiert in
+	 *     zwei Dezimalziffern, siehe Name
+	 *   Geburtsdatum, ttmmjjjj
+	 *
+	 *   Sie können davon ausgehen, dass doppelte Schlüssel nicht vorkommen.
+	 */
+	private long key;
+
+	/**
+	 * Name.
+	 */
+	private String name;
+	
+	/**
+	 * Firstname.
+	 */
+	private String firstname;
+
+	/**
+	 * Date.
+	 */
+	private LocalDate date;
+
+	/**
+	 * Gender.
+	 */
+	private Gender gender;
+	
+	/**
+	 * Associated kind of sport.
+	 */
+	private KindOfSport kindOfSport;
+	
+	/**
+	 * Parse a CSV to a Member.
+	 * 
+	 * @param csv A CSV String separated by ', ',
+	 * with the row signature 'name, firstname, date, gender, kind of sport'
+	 * @return A Member.
+	 */
+	public Member(String csv) {
+		final String DELIMITER = ", ";
+		String[] columns = csv.split(DELIMITER);
+		
+		if (columns.length != 5) {
+			throw new IllegalArgumentException(
+					"Row '" + csv + "' is not a valid format!");
+		}
+
+		this.name = columns[0];
+		this.firstname = columns[1];
+		this.date = LocalDate.parse(columns[2],
+				DateTimeFormatter.ISO_DATE);
+		this.gender = Gender.valueOf(columns[3]);
+		this.kindOfSport = KindOfSport.valueOf(columns[4]);
+		this.key = encode(this);
+	}
+
+	/**
+	 * Member constructor.
+	 * 
+	 * @param name The name.
+	 * @param firstname The firstname.
+	 * @param date The date.
+	 * @param gender The gender.
+	 * @param kindOfSport The associated kind of sport.
+	 */
+	public Member(String name,
+			String firstname,
+			LocalDate date,
+			Gender gender,
+			KindOfSport kindOfSport) {
+		this.name = name;
+		this.firstname = firstname;
+		this.date = date;
+		this.gender = gender;
+		this.kindOfSport = kindOfSport;
+		this.key = encode(this);
+	}
+	
+	/**
+	 * Generate a unique key from a member's attributes. 
+	 * 
+	 * @param member A member.
+	 * @return A key.
+	 */
+	private static Long encode(Member member) {
+		String nameKeyPart = encodeLetters(member.name.substring(0, 1));
+		String surnameKeyPart = encodeLetters(member.firstname.substring(0, 1));
+		String dateKeyPart = encodeDate(member.date);
+		String key = nameKeyPart + surnameKeyPart + dateKeyPart;
+		return Long.valueOf(key);
+	}
+
+	/**
+	 * Format the given date as part of a key.
+	 * 
+	 * @param date A LocalDate.
+	 * @return A String ttmmjjjj.
+	 */
+	private static String encodeDate(LocalDate date) {
+		return String.format("%02d%02d%02d", // 2 digits, left pad
+				date.getDayOfMonth(),
+				date.getMonthValue(),
+				date.getYear());
+	}
+
+	/**
+	 * Map each letter in the given string to a value
+	 * between '01' and '26'.
+	 * 
+	 * @param string A string containing only letters.
+	 * @return A string of zero padded digits.
+	 */
+	private static String encodeLetters(String string) {
+		String encodedString = "";
+
+		for (char letter : sanitizeLetters(string).toCharArray()) {
+			int letterIndex = letter - 'a' + 1;
+
+			if (letterIndex < 1 || letterIndex > 26) {
+				throw new IllegalArgumentException(
+						letter + " cannot be encoded!");
+			}
+
+			encodedString += String.format("%02d", letterIndex);
+		}
+
+		return encodedString;
+	}
+
+	/**
+	 * Replace ä, ö, ü and lowercase the string.
+	 * 
+	 * @param string A string.
+	 * @return A lowercase string without umlauts.
+	 */
+	private static String sanitizeLetters(String string) {
+		return string
+				.toLowerCase()
+				.replace("ä", "ae")
+				.replace("ö", "oe")
+				.replace("ü", "ue");
+	}
+
+	/**
+	 * Return this member as string.
+	 */
+	@Override
+	public String toString() {
+		return this.key + ", "
+				+ this.name + ", "
+				+ this.firstname + ", "
+				+ this.date + ", "
+				+ this.gender + ", "
+				+ this.kindOfSport;
+	}
+	
+	/**
+	 * Implement the Comparable interface by comparing the keys.
+	 * 
+	 * @return @see Comparable
+	 */
+	@Override
+	public int compareTo(IMember member) {
+		return Long.compare(this.key, member.getKey());
+	}
+	
+	@Override
+	public String getName() {
+		return this.name;
+	}
+	
+	@Override
+	public Gender getGender() {
+		return this.gender;
+	}
+	
+	@Override
+	public LocalDate getDate() {
+		return this.date;
+	}
+	
+	@Override
+	public String getFirstName() {
+		return this.firstname;
+	}
+	
+	@Override
+	public long getKey() {
+		return this.key;
+	}
+	
+	@Override
+	public KindOfSport getKindOfSport() {
+		return this.kindOfSport;
+	}
+}