#11 Very basic implementation with dummy data

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;
 }