- added a necessary DTO's and JsonFileRepository, what enables the application to serialize json-file in to DTO's

- added application configuration properties to configure the test data file path, what can be overridden by the user

pom.xml

@@ -23,7 +23,7 @@
         <lombok.version>1.18.12</lombok.version>
         <mockito.version>3.3.0</mockito.version>
         <junit.version>4.12</junit.version>
-        <hamcrest.version>2.1</hamcrest.version>
+        <assertj-guava.version>3.3.0</assertj-guava.version>
     </properties>
 
     <dependencies>
@@ -65,10 +65,11 @@
             <version>${junit.version}</version>
             <scope>test</scope>
         </dependency>
+
         <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest</artifactId>
-            <version>2.1</version>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-guava</artifactId>
+            <version>${assertj-guava.version}</version>
             <scope>test</scope>
         </dependency>
 

src/main/java/click/poweronoff/satellite/repository/JsonFileRepository.java

@@ -0,0 +1,33 @@
+package click.poweronoff.satellite.repository;
+
+import click.poweronoff.satellite.repository.dto.FeaturesCollection;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Repository;
+
+import javax.annotation.PostConstruct;
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+
+@Repository
+public class JsonFileRepository {
+
+    @Value("${storage.file.path}")
+    private String filePath;
+
+    private ObjectMapper objectMapper;
+
+    @PostConstruct
+    public void initRepository() {
+        objectMapper = new ObjectMapper();
+    }
+
+    public FeaturesCollection[] readAllFeatures() throws IOException {
+        FileReader fileReader = new FileReader(filePath);
+        BufferedReader reader = new BufferedReader(fileReader);
+        FeaturesCollection[] features = objectMapper.readValue(reader, FeaturesCollection[].class);
+        reader.close();
+        return features;
+    }
+}

src/main/java/click/poweronoff/satellite/repository/dto/Acquisition.java

@@ -0,0 +1,15 @@
+package click.poweronoff.satellite.repository.dto;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import lombok.Data;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+@Data
+public class Acquisition {
+
+    private String beginViewingDate;
+
+    private String endViewingDate;
+
+    private String missionName;
+}

src/main/java/click/poweronoff/satellite/repository/dto/Features.java

@@ -0,0 +1,10 @@
+package click.poweronoff.satellite.repository.dto;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import lombok.Data;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+@Data
+public class Features {
+    private Properties properties;
+}

src/main/java/click/poweronoff/satellite/repository/dto/FeaturesCollection.java

@@ -0,0 +1,10 @@
+package click.poweronoff.satellite.repository.dto;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import lombok.Data;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+@Data
+public class FeaturesCollection {
+    private Features[] features;
+}

src/main/java/click/poweronoff/satellite/repository/dto/Properties.java

@@ -0,0 +1,19 @@
+package click.poweronoff.satellite.repository.dto;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+@Data
+public class Properties {
+
+    @JsonProperty
+    private String id;
+    @JsonProperty
+    private String timestamp;
+    @JsonProperty
+    private String quicklook;
+    @JsonProperty
+    private Acquisition acquisition;
+}

src/main/resources/application.properties

@@ -1 +1,2 @@
-
+# configuration for the json data storage relative path
+storage.file.path=json/source-data.json

src/test/java/click/poweronoff/satellite/repository/JsonFileRepositoryTest.java

@@ -0,0 +1,27 @@
+package click.poweronoff.satellite.repository;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.io.IOException;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+
+@SpringBootTest
+@RunWith(SpringRunner.class)
+public class JsonFileRepositoryTest {
+
+    @Autowired
+    private JsonFileRepository repository;
+
+    @Test
+    public void readAllFeaturesShouldReturnAllFeatures() throws IOException {
+        assertThat(repository.readAllFeatures()).isNotEmpty();
+        assertThat(repository.readAllFeatures()).hasSize(14);
+    }
+
+}