Refactored Configuration property validation example

Author: nilandev

configuration-property-validation/build.gradle

@@ -1,35 +1,34 @@
 plugins {
-	id 'java'
-	id 'org.springframework.boot' version '3.2.5'
-	id 'io.spring.dependency-management' version '1.1.4'
+    id 'java'
+    id 'org.springframework.boot' version '3.2.5'
+    id 'io.spring.dependency-management' version '1.1.4'
 }
 
 group = 'com.stacktips'
 version = '0.0.1-SNAPSHOT'
 
 java {
-	sourceCompatibility = '17'
+    sourceCompatibility = '17'
 }
 
 configurations {
-	compileOnly {
-		extendsFrom annotationProcessor
-	}
+    compileOnly {
+        extendsFrom annotationProcessor
+    }
 }
 
 repositories {
-	mavenCentral()
+    mavenCentral()
 }
 
 dependencies {
-	implementation 'org.springframework.boot:spring-boot-starter-web'
-	compileOnly 'org.projectlombok:lombok'
-	annotationProcessor 'org.projectlombok:lombok'
-
-	testImplementation 'org.springframework.boot:spring-boot-starter-test'
-	implementation 'org.springframework.boot:spring-boot-starter-validation:3.2.4'
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.springframework.boot:spring-boot-starter-validation'
+    compileOnly 'org.projectlombok:lombok'
+    annotationProcessor 'org.projectlombok:lombok'
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
 }
 
 tasks.named('test') {
-	useJUnitPlatform()
+    useJUnitPlatform()
 }

configuration-property-validation/src/main/java/com/stacktips/app/ConfigurationPropertyValidationApplication.java

@@ -1,7 +1,6 @@
 package com.stacktips.app;
 
-import com.stacktips.app.service.ImportService;
-import lombok.AllArgsConstructor;
+import com.stacktips.app.service.ImporterService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
@@ -11,7 +10,7 @@
 @SpringBootApplication
 public class ConfigurationPropertyValidationApplication implements CommandLineRunner {
 
-    private final ImportService service;
+    private final ImporterService service;
 
     public static void main(String[] args) {
         SpringApplication.run(ConfigurationPropertyValidationApplication.class, args);

configuration-property-validation/src/main/java/com/stacktips/app/config/ImporterConfig.java

@@ -1,6 +1,9 @@
 package com.stacktips.app.config;
 
-import jakarta.validation.constraints.*;
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.Pattern;
+import jakarta.validation.constraints.Positive;
 import lombok.Getter;
 import lombok.Setter;
 import lombok.ToString;
@@ -16,11 +19,11 @@
 @ConfigurationProperties(prefix = "importer.service")
 public class ImporterConfig {
 
-    @NotNull
+    @NotEmpty
     String filePath;
 
-    @NotNull
-    @Pattern(regexp = "\\.csv$|\\.txt")
+    @NotEmpty
+    @Pattern(regexp = "\\.csv$|\\.txt$")
     String fileType;
 
     @Positive

configuration-property-validation/src/main/java/com/stacktips/app/service/ImportService.java renamed to configuration-property-validation/src/main/java/com/stacktips/app/service/ImporterService.java

@@ -8,7 +8,7 @@
 @Slf4j
 @Service
 @RequiredArgsConstructor
-public class ImportService {
+public class ImporterService {
 
     private final ImporterConfig importerConfig;
 

configuration-property-validation/src/main/resources/application.yaml

@@ -5,5 +5,5 @@ spring:
 importer:
   service:
     filePath: /nfs/files
-    fileType: '.md'
-    threadPoolSize: 3
+    fileType: '.docx'
+    threadPoolSize: 30