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-rw-r--r--src/main/java/design/HelloWorld.java21
-rw-r--r--src/main/java/design/model/Course.java9
-rw-r--r--src/main/java/design/model/Golfer.java19
-rw-r--r--src/main/java/design/model/Play.java8
-rw-r--r--src/main/java/design/model/Round.java12
-rw-r--r--src/main/java/design/persistence/CSVMasterDatabase.java83
-rw-r--r--src/main/java/design/persistence/JSONPersonalDatabase.java118
-rw-r--r--src/main/java/design/persistence/MasterDatabase.java4
-rw-r--r--src/main/java/design/persistence/PersonalDatabase.java10
9 files changed, 271 insertions, 13 deletions
diff --git a/src/main/java/design/HelloWorld.java b/src/main/java/design/HelloWorld.java
index ea552f9..5e16cec 100644
--- a/src/main/java/design/HelloWorld.java
+++ b/src/main/java/design/HelloWorld.java
@@ -1,7 +1,24 @@
package design;
+import design.model.Golfer;
+import design.persistence.CSVMasterDatabase;
+import design.persistence.JSONPersonalDatabase;
+import design.persistence.MasterDatabase;
+import design.persistence.PersonalDatabase;
+
+import java.io.IOException;
+
public class HelloWorld {
- public static void main(String[] args) {
- System.out.println("Hello, World!");
+ public static void main(String[] args) throws IOException {
+ var mdb = MasterDatabase.INSTANCE;
+ var pdb = PersonalDatabase.INSTANCE;
+
+// Golfer g = new Golfer("Tyler Ferrari", "sowgro", "pass");
+// g.addCourse(mdb.getCourse(8));
+//
+// pdb.addGolfer(g);
+
+ System.out.println("done");
+
}
}
diff --git a/src/main/java/design/model/Course.java b/src/main/java/design/model/Course.java
index 8dfecd8..f90c8d9 100644
--- a/src/main/java/design/model/Course.java
+++ b/src/main/java/design/model/Course.java
@@ -3,6 +3,8 @@ package design.model;
import java.util.List;
public class Course implements ICourse {
+
+ private final int id;
private final String name;
private final int difficultyRating;
private final String location;
@@ -10,7 +12,8 @@ public class Course implements ICourse {
private final int totalPar;
private final List<Hole> holes;
- public Course(String name, int difficultyRating, String location, int holeCount, int totalPar, List<Hole> holes) {
+ public Course(int id, String name, int difficultyRating, String location, int holeCount, int totalPar, List<Hole> holes) {
+ this.id = id;
this.name = name;
this.difficultyRating = difficultyRating;
this.location = location;
@@ -19,6 +22,10 @@ public class Course implements ICourse {
this.holes = holes;
}
+ public int getId() {
+ return id;
+ }
+
public String getName() {
return name;
}
diff --git a/src/main/java/design/model/Golfer.java b/src/main/java/design/model/Golfer.java
index 8f09067..04ad8bc 100644
--- a/src/main/java/design/model/Golfer.java
+++ b/src/main/java/design/model/Golfer.java
@@ -1,5 +1,7 @@
package design.model;
+import com.fasterxml.jackson.annotation.JsonCreator;
+
import java.util.ArrayList;
import java.util.List;
@@ -7,15 +9,24 @@ public class Golfer {
private String username;
private int passwordHash;
private String fullName;
- private final transient List<Course> courses; // might be better to make this like a courseID or something
+ private final List<Course> courses;
private final List<Round> rounds;
+ @JsonCreator
+ private Golfer(String username, int passwordHash, String fullName, List<Course> courses, List<Round> rounds) {
+ this.username = username;
+ this.passwordHash = passwordHash;
+ this.fullName = fullName;
+ this.courses = courses;
+ this.rounds = rounds;
+ }
+
public Golfer(String fullName, String username, String password) {
- this.courses = new ArrayList<>();
- this.rounds = new ArrayList<>();
this.fullName = fullName;
this.username = username;
this.passwordHash = password.hashCode();
+ this.courses = new ArrayList<>();
+ this.rounds = new ArrayList<>();
}
public String getUsername() {
@@ -61,6 +72,4 @@ public class Golfer {
public void addRound(Round round) {
rounds.add(round);
}
-
-
}
diff --git a/src/main/java/design/model/Play.java b/src/main/java/design/model/Play.java
index b61228b..ca6dac2 100644
--- a/src/main/java/design/model/Play.java
+++ b/src/main/java/design/model/Play.java
@@ -1,5 +1,7 @@
package design.model;
+import com.fasterxml.jackson.annotation.JsonCreator;
+
import java.util.ArrayList;
import java.util.List;
@@ -7,6 +9,12 @@ public class Play {
private final int distance;
private final List<Swing> swings;
+ @JsonCreator
+ private Play(int distance, List<Swing> swings) {
+ this.distance = distance;
+ this.swings = swings;
+ }
+
public Play(int distance) {
this.swings = new ArrayList<>();
this.distance = distance;
diff --git a/src/main/java/design/model/Round.java b/src/main/java/design/model/Round.java
index 38975da..048a21a 100644
--- a/src/main/java/design/model/Round.java
+++ b/src/main/java/design/model/Round.java
@@ -1,15 +1,25 @@
package design.model;
+import com.fasterxml.jackson.annotation.JsonCreator;
+
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
public class Round {
- private final transient Course course;
+ private final Course course;
private final LocalDateTime dateTime;
private final Hole startingHole;
private final List<Play> plays;
+ @JsonCreator
+ private Round(Course course, LocalDateTime dateTime, Hole startingHole, List<Play> plays) {
+ this.course = course;
+ this.dateTime = dateTime;
+ this.startingHole = startingHole;
+ this.plays = plays;
+ }
+
public Round(Course course, LocalDateTime dateTime, Hole startingHole) {
this.course = course;
this.dateTime = dateTime;
diff --git a/src/main/java/design/persistence/CSVMasterDatabase.java b/src/main/java/design/persistence/CSVMasterDatabase.java
new file mode 100644
index 0000000..fe89191
--- /dev/null
+++ b/src/main/java/design/persistence/CSVMasterDatabase.java
@@ -0,0 +1,83 @@
+package design.persistence;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.fasterxml.jackson.databind.MappingIterator;
+import com.fasterxml.jackson.databind.module.SimpleModule;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.fasterxml.jackson.dataformat.csv.CsvMapper;
+import com.fasterxml.jackson.dataformat.csv.CsvSchema;
+import design.model.Course;
+import design.model.Hole;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class CSVMasterDatabase implements MasterDatabase {
+
+ private final List<Course> cache;
+ private final CsvMapper mapper;
+ private final File file;
+
+ public CSVMasterDatabase(String filename) {
+ this.cache = new ArrayList<>();
+ this.mapper = new CsvMapper();
+ this.file = new File(filename);
+
+ SimpleModule module = new SimpleModule();
+ module.addDeserializer(Course.class, new CourseDeserializer());
+ mapper.registerModule(module);
+
+ try {
+ load();
+ } catch (IOException ex) {
+ throw new RuntimeException(ex);
+ }
+ }
+
+ public void load() throws IOException {
+ MappingIterator<Course> it = mapper
+ .readerFor(Course.class)
+ .with(CsvSchema.emptySchema().withHeader())
+ .readValues(file);
+
+ cache.addAll(it.readAll());
+ }
+
+ @Override
+ public Course[] getCourses() {
+ return cache.toArray(Course[]::new);
+ }
+
+ @Override
+ public Course getCourse(int id) {
+ return cache.get(id);
+ }
+
+ private static class CourseDeserializer extends JsonDeserializer<Course> {
+ int curID = 0;
+
+ @Override
+ public Course deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
+ ObjectNode node = p.getCodec().readTree(p);
+
+ int id = curID++;
+ String name = node.get("Course Name").asText();
+ double difficulty = node.get("Difficulty Rating").asDouble();
+ String location = node.get("Location").asText();
+ int holes = node.get("Number of Holes").asInt();
+ int totalPar = node.get("Total Par").asInt();
+
+ String[] parValues = node.get("Par Per Hole").asText().split(";");
+ List<Hole> holeList = new ArrayList<>();
+ for (int i = 0; i < parValues.length; i++) {
+ holeList.add(new Hole(i + 1, Integer.parseInt(parValues[i].trim())));
+ }
+
+ return new Course(id, name, (int) difficulty, location, holes, totalPar, holeList);
+ }
+ }
+}
diff --git a/src/main/java/design/persistence/JSONPersonalDatabase.java b/src/main/java/design/persistence/JSONPersonalDatabase.java
new file mode 100644
index 0000000..0efa362
--- /dev/null
+++ b/src/main/java/design/persistence/JSONPersonalDatabase.java
@@ -0,0 +1,118 @@
+package design.persistence;
+
+import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.util.DefaultIndenter;
+import com.fasterxml.jackson.core.util.DefaultPrettyPrinter;
+import com.fasterxml.jackson.databind.*;
+import com.fasterxml.jackson.databind.module.SimpleModule;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import com.fasterxml.jackson.module.paramnames.ParameterNamesModule;
+import design.model.Course;
+import design.model.Golfer;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
+public class JSONPersonalDatabase implements PersonalDatabase {
+
+ private final Map<String, Golfer> cache;
+ private final ObjectMapper mapper;
+ private final File file;
+
+ public JSONPersonalDatabase(String filename) {
+ this.file = new File(filename);
+ this.cache = new HashMap<>();
+ this.mapper = new ObjectMapper();
+
+ SimpleModule module = new SimpleModule();
+ module.addDeserializer(Course.class, new CourseIdDeserializer());
+ module.addSerializer(Course.class, new CourseIdSerializer());
+ mapper.registerModule(module);
+ mapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
+ mapper.registerModule(new ParameterNamesModule(JsonCreator.Mode.PROPERTIES));
+ mapper.registerModule(new JavaTimeModule());
+
+ try {
+ load();
+ } catch (IOException ex) {
+ throw new RuntimeException(ex);
+ }
+ }
+
+ private void load() throws IOException {
+ Golfer[] data = mapper.readValue(file, Golfer[].class);
+ cache.clear();
+ for (Golfer i : data) {
+ cache.put(i.getUsername(), i);
+ }
+ }
+
+ private void save() throws IOException {
+ Golfer[] data = cache.values().toArray(Golfer[]::new);
+ mapper.writer(new CustomPrettyPrinter()).writeValue(file, data);
+ }
+
+ @Override
+ public Golfer[] getGolfers() {
+ return new Golfer[0];
+ }
+
+ @Override
+ public Golfer getGolfer(String username) {
+ return cache.get(username);
+ }
+
+ @Override
+ public void addGolfer(Golfer golfer) throws IOException {
+ cache.put(golfer.getUsername(), golfer);
+ save();
+ }
+
+ @Override
+ public void removeGolfer(Golfer golfer) throws IOException {
+ cache.remove(golfer.getUsername());
+ save();
+ }
+
+ @Override
+ public void updateGolfer(Golfer golfer) throws IOException {
+ cache.put(golfer.getUsername(), golfer);
+ save();
+ }
+
+ private static class CourseIdSerializer extends JsonSerializer<Course> {
+ @Override
+ public void serialize(Course course, JsonGenerator gen, SerializerProvider serializers) throws IOException {
+ gen.writeNumber(course.getId());
+ }
+ }
+
+ private static class CourseIdDeserializer extends JsonDeserializer<Course> {
+ MasterDatabase masterDB = MasterDatabase.INSTANCE;
+
+ @Override
+ public Course deserialize(JsonParser p, DeserializationContext context) throws IOException {
+ int id = p.getValueAsInt();
+ return masterDB.getCourse(id);
+ }
+ }
+
+ private static class CustomPrettyPrinter extends DefaultPrettyPrinter {
+ public CustomPrettyPrinter() {
+ super._arrayIndenter = new DefaultIndenter();
+ super._objectFieldValueSeparatorWithSpaces = _separators.getObjectFieldValueSeparator() + " ";
+ super._arrayEmptySeparator = "";
+ }
+
+ @Override
+ public CustomPrettyPrinter createInstance() {
+ return new CustomPrettyPrinter();
+ }
+ }
+}
diff --git a/src/main/java/design/persistence/MasterDatabase.java b/src/main/java/design/persistence/MasterDatabase.java
index 9dcfc1f..2852349 100644
--- a/src/main/java/design/persistence/MasterDatabase.java
+++ b/src/main/java/design/persistence/MasterDatabase.java
@@ -3,6 +3,8 @@ package design.persistence;
import design.model.Course;
public interface MasterDatabase {
+ public static final MasterDatabase INSTANCE = new CSVMasterDatabase("data/golf_courses_1000.csv");
+
Course[] getCourses();
- Course getCourse(String name);
+ Course getCourse(int id);
}
diff --git a/src/main/java/design/persistence/PersonalDatabase.java b/src/main/java/design/persistence/PersonalDatabase.java
index e1023cf..524263b 100644
--- a/src/main/java/design/persistence/PersonalDatabase.java
+++ b/src/main/java/design/persistence/PersonalDatabase.java
@@ -2,10 +2,14 @@ package design.persistence;
import design.model.Golfer;
+import java.io.IOException;
+
public interface PersonalDatabase {
+ public static final PersonalDatabase INSTANCE = new JSONPersonalDatabase("data/personaldb.json");
+
Golfer[] getGolfers();
Golfer getGolfer(String name);
- void addGolfer(Golfer golfer);
- void removeGolfer(Golfer golfer);
- void updateGolfer(Golfer golfer);
+ void addGolfer(Golfer golfer) throws IOException;
+ void removeGolfer(Golfer golfer) throws IOException;
+ void updateGolfer(Golfer golfer) throws IOException;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-27 23:28:31 +0000