#11 Very basic implementation with dummy data

build.gradle

@@ -5,7 +5,7 @@ plugins {
     id 'org.beryx.jlink' version '2.25.0'
 }
 
-group 'ch.zhaw.pm3'
+group 'ch.zhaw.gartenverwaltung'
 version '1.0-SNAPSHOT'
 
 repositories {
@@ -37,6 +37,7 @@ dependencies {
 
     testImplementation("org.junit.jupiter:junit-jupiter-api:${junitVersion}")
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:${junitVersion}")
+    implementation group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.13.4'
 }
 
 test {

src/main/java/ch/zhaw/gartenverwaltung/HelloApplication.java

@@ -1,5 +1,8 @@
 package ch.zhaw.gartenverwaltung;
 
+import ch.zhaw.gartenverwaltung.io.JsonPlantDatabase;
+import ch.zhaw.gartenverwaltung.io.PlantDatabase;
+import ch.zhaw.gartenverwaltung.types.HardinessZone;
 import javafx.application.Application;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Scene;
@@ -18,6 +21,12 @@ public class HelloApplication extends Application {
     }
 
     public static void main(String[] args) {
+        PlantDatabase db = new JsonPlantDatabase();
+        try {
+            System.out.println(db.getPlantList(HardinessZone.ZONE_8A));
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
         launch();
     }
 }

src/main/java/ch/zhaw/gartenverwaltung/io/JsonPlantDatabase.java

@@ -0,0 +1,37 @@
+package ch.zhaw.gartenverwaltung.io;
+
+import ch.zhaw.gartenverwaltung.types.HardinessZone;
+import ch.zhaw.gartenverwaltung.types.Plant;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.io.IOException;
+import java.net.URL;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+
+public class JsonPlantDatabase implements PlantDatabase {
+    private final URL dataSource = getClass().getResource("plantdb.json");
+
+    @Override
+    public List<Plant> getPlantList(HardinessZone zone) throws IOException {
+        List<Plant> result = Collections.emptyList();
+
+        if (dataSource != null) {
+            ObjectMapper mapper = new ObjectMapper();
+            DateFormat dateFormat = new SimpleDateFormat("MM-dd");
+            mapper.setDateFormat(dateFormat);
+
+            result = mapper.readerForListOf(Plant.class).readValue(dataSource);
+        }
+
+        return result;
+    }
+
+    @Override
+    public Optional<Plant> getPlantById(long id) {
+        return Optional.empty();
+    }
+}

src/main/java/ch/zhaw/gartenverwaltung/io/PlantDatabase.java

@@ -3,10 +3,11 @@ package ch.zhaw.gartenverwaltung.io;
 import ch.zhaw.gartenverwaltung.types.Plant;
 import ch.zhaw.gartenverwaltung.types.HardinessZone;
 
+import java.io.IOException;
 import java.util.List;
 import java.util.Optional;
 
 public interface PlantDatabase {
-    List<Plant> getPlantList(HardinessZone zone);
-    Optional<Plant> getPlantById(long id);
+    List<Plant> getPlantList(HardinessZone zone) throws IOException;
+    Optional<Plant> getPlantById(long id) throws IOException;
 }

src/main/java/ch/zhaw/gartenverwaltung/json/GrowthPhaseTypeDeserializer.java

@@ -0,0 +1,28 @@
+package ch.zhaw.gartenverwaltung.json;
+
+import ch.zhaw.gartenverwaltung.types.GrowthPhaseType;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
+
+import java.io.IOException;
+
+public class GrowthPhaseTypeDeserializer extends StdDeserializer<GrowthPhaseType> {
+    public GrowthPhaseTypeDeserializer(Class<?> vc) {
+        super(vc);
+    }
+
+    public GrowthPhaseTypeDeserializer() { this(null); }
+
+    @Override
+    public GrowthPhaseType deserialize(JsonParser parser, DeserializationContext context) throws IOException {
+        GrowthPhaseType result = null;
+        try {
+            result = GrowthPhaseType.valueOf(parser.getText().toUpperCase());
+        } catch (IllegalArgumentException e) {
+            // TODO: Log
+            System.err.println("bad growth phase type");
+        }
+        return result;
+    }
+}

src/main/java/ch/zhaw/gartenverwaltung/json/HardinessZoneDeserializer.java

@@ -0,0 +1,29 @@
+package ch.zhaw.gartenverwaltung.json;
+
+import ch.zhaw.gartenverwaltung.types.HardinessZone;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
+
+import java.io.IOException;
+
+public class HardinessZoneDeserializer extends StdDeserializer<HardinessZone> {
+    public HardinessZoneDeserializer(Class<?> vc) {
+        super(vc);
+    }
+    public HardinessZoneDeserializer() {
+        this(null);
+    }
+
+    @Override
+    public HardinessZone deserialize(JsonParser parser, DeserializationContext context) throws IOException {
+        HardinessZone result = null;
+        try {
+            result = HardinessZone.valueOf(parser.getText().toUpperCase());
+        } catch (IllegalArgumentException e) {
+            // TODO: Log
+            System.err.println("bad growth phase type");
+        }
+        return result;
+    }
+}

src/main/java/ch/zhaw/gartenverwaltung/types/GrowthPhase.java

@@ -1,9 +1,15 @@
 package ch.zhaw.gartenverwaltung.types;
 
+import ch.zhaw.gartenverwaltung.json.GrowthPhaseTypeDeserializer;
+import ch.zhaw.gartenverwaltung.json.HardinessZoneDeserializer;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+
 import java.util.Date;
 
-public record GrowthPhase(Date startDate,
-                          Date endDate,
-                          GrowthPhaseType type,
-                          HardinessZone zone) {
+
+public record GrowthPhase(
+        Date startDate,
+        Date endDate,
+        @JsonDeserialize(using = GrowthPhaseTypeDeserializer.class) GrowthPhaseType type,
+        @JsonDeserialize(using = HardinessZoneDeserializer.class) HardinessZone zone) {
 }

src/main/java/ch/zhaw/gartenverwaltung/types/Plant.java

@@ -7,5 +7,10 @@ public record Plant(
         String name,
         String description,
         int spacing,
+        Object water,
+        int light,
+        List<String> maintenance,
+        List<String> specialTasks,
+        List<String> pests,
         List<GrowthPhase> lifecycle) {
 }

src/main/java/module-info.java

@@ -1,8 +1,13 @@
 module ch.zhaw.gartenverwaltung {
     requires javafx.controls;
     requires javafx.fxml;
+    requires com.fasterxml.jackson.databind;
 
 
     opens ch.zhaw.gartenverwaltung to javafx.fxml;
+    opens ch.zhaw.gartenverwaltung.types to com.fasterxml.jackson.databind;
+//    opens ch.zhaw.gartenverwaltung.types to com.fasterxml.jackson.databind;
     exports ch.zhaw.gartenverwaltung;
+    exports ch.zhaw.gartenverwaltung.types;
+    exports ch.zhaw.gartenverwaltung.json;
 }

src/main/resources/ch/zhaw/gartenverwaltung/io/plantdb.json

@@ -0,0 +1,31 @@
+[
+  {
+    "name": "Potato",
+    "description": "Tasty tubers.",
+    "water": {
+      "amount": "27-55",
+      "interval": 7
+    },
+    "light": 6,
+    "maintenance": [],
+    "specialTasks": [],
+    "lifecycle": [
+      {
+        "startDate": "04-01",
+        "endDate": "05-31",
+        "type": "SOW",
+        "zone": "ZONE_8A"
+      },
+      {
+        "startDate": "07-01",
+        "endDate": "08-31",
+        "type": "HARVEST",
+        "zone": "ZONE_8A"
+      }
+    ],
+    "spacing": 35,
+    "pests": [
+      "Potato beetle"
+    ]
+  }
+]