feat: DataProperties

.gitignore

@@ -3,3 +3,6 @@ target/
 ### IntelliJ IDEA ###
 .idea/
 *.iml
+
+# local files
+data/

readme.md

@@ -1,7 +1,8 @@
 # Large file reading challenge
 
 Welcome in the recruitment challenge.
-Write an application that, at the endpoint specified by you, returns the yearly average temperatures for a given city in the format array of objects with the following fields: year, averageTemperature.
+Write an application that, at the endpoint specified by you, returns the yearly average temperatures for a given city in
+the format array of objects with the following fields: year, averageTemperature.
 
 ## Assumptions
 
@@ -10,33 +11,40 @@ Write an application that, at the endpoint specified by you, returns the yearly
 - The content of the source file may change during the application's running
 
 ## Example source file
-[example_file.csv](example_file.csv)
 
+[example_file.csv](example_file.csv)
 
 ## Response
 
 ### Schema
+
 [response_schema](schema/response.json)
 
 ### Example
 
 ```json
 [
-  {
+    {
-	"year": "2021",
+        "year": "2021",
-	"averageTemperature": 12.1
+        "averageTemperature": 12.1
-  },
+    },
-  {
+    {
-	"year": "2022",
+        "year": "2022",
-	"averageTemperature": 11.1
+        "averageTemperature": 11.1
-  },
+    },
-  {
+    {
-	"year": "2023",
+        "year": "2023",
-	"averageTemperature": 14.1
+        "averageTemperature": 14.1
-  }
+    }
 ]
 ```
 
+## Configuration
+
+| property      | description                    | default               |
+|---------------|--------------------------------|-----------------------|
+| data.file-url | path to file with temperatures | data/temperatures.csv |
+
 ## Usage
 
 Temperature statistics endpoint: `/api/temperatures/{city}`

src/main/java/eu/ztsh/lfr/Main.java

@@ -2,8 +2,12 @@ package eu.ztsh.lfr;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.context.properties.ConfigurationPropertiesScan;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 
 @SpringBootApplication
+@EnableConfigurationProperties
+@ConfigurationPropertiesScan
 public class Main {
 
     public static void main(String[] args) {

src/main/java/eu/ztsh/lfr/config/DataProperties.java

@@ -0,0 +1,8 @@
+package eu.ztsh.lfr.config;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+@ConfigurationProperties("data")
+public record DataProperties(String fileUrl) {
+
+}

src/main/resources/application.yaml

@@ -0,0 +1,2 @@
+data:
+  file-url: data/temperatures.csv