Added FileService

gymboard-cdn/src/main/java/nl/andrewlalis/gymboardcdn/FileService.java

@@ -0,0 +1,50 @@
+package nl.andrewlalis.gymboardcdn;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Optional;
+
+@Service
+public class FileService {
+	@Value("${app.files.storage-dir}")
+	private String storageDir;
+
+	@Value("${app.files.temp-dir}")
+	private String tempDir;
+
+	public Path saveToTempFile(MultipartFile file) throws IOException {
+		Path tempDir = getTempDir();
+		String suffix = null;
+		String filename = file.getOriginalFilename();
+		if (filename != null) {
+			int idx = filename.lastIndexOf('.');
+			if (idx >= 0) {
+				suffix = filename.substring(idx);
+			}
+		}
+		Path tempFile = Files.createTempFile(tempDir, null, suffix);
+		file.transferTo(tempFile);
+		return tempFile;
+	}
+
+	private Path getStorageDir() throws IOException {
+		Path dir = Path.of(storageDir);
+		if (Files.notExists(dir)) {
+			Files.createDirectories(dir);
+		}
+		return dir;
+	}
+
+	private Path getTempDir() throws IOException {
+		Path dir = Path.of(tempDir);
+		if (Files.notExists(dir)) {
+			Files.createDirectories(dir);
+		}
+		return dir;
+	}
+}

gymboard-cdn/src/main/resources/application-development.properties

@@ -1,3 +1,5 @@
 server.port=8082
 
 app.web-origin=http://localhost:9000
+app.files.storage-dir=./cdn-files/
+app.files.temp-dir=./cdn-files/tmp/