refactoring fromStringToFile

src/main/java/it/gov/pagopa/atmlayer/service/model/configurations/DirManager.java

@@ -0,0 +1,49 @@
+package it.gov.pagopa.atmlayer.service.model.configurations;
+
+import io.quarkus.runtime.Shutdown;
+import io.quarkus.runtime.ShutdownEvent;
+import io.quarkus.runtime.Startup;
+import io.quarkus.runtime.StartupEvent;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.enterprise.event.Observes;
+import lombok.Getter;
+import org.apache.commons.lang3.SystemUtils;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.attribute.PosixFilePermission;
+import java.util.EnumSet;
+import java.util.Set;
+
+@ApplicationScoped
+public class DirManager {
+
+    @Getter
+    public static File decodedFilesDirectory;
+
+    @Startup
+    static void init(@Observes StartupEvent ev) throws IOException {
+        String secureDirPath = System.getProperty("java.io.tmpdir") + "/mySecureDirectory";
+        decodedFilesDirectory = new File(secureDirPath);
+        if (!decodedFilesDirectory.exists() && !decodedFilesDirectory.mkdirs()) {
+            throw new IOException("Impossibile creare una directory sicura per il salvataggio di file temporanei.");
+        }
+        if (SystemUtils.IS_OS_UNIX) {
+            Set<PosixFilePermission> dirPermissions = EnumSet.of(
+                    PosixFilePermission.OWNER_READ,
+                    PosixFilePermission.OWNER_WRITE,
+                    PosixFilePermission.OWNER_EXECUTE
+            );
+            java.nio.file.Files.setPosixFilePermissions(decodedFilesDirectory.toPath(), dirPermissions);
+        }
+    }
+
+    @Shutdown
+    static boolean shutdown(@Observes ShutdownEvent ev) {
+        return decodedFilesDirectory.delete();
+    }
+
+    private DirManager() {
+        throw new IllegalStateException("Utility class DirManager should not be instantiated");
+    }
+}

src/main/java/it/gov/pagopa/atmlayer/service/model/utils/FileUtilities.java

@@ -2,6 +2,7 @@
 
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import it.gov.pagopa.atmlayer.service.model.configurations.DirManager;
 import it.gov.pagopa.atmlayer.service.model.enumeration.AppErrorCodeEnum;
 import it.gov.pagopa.atmlayer.service.model.enumeration.DeployableResourceType;
 import it.gov.pagopa.atmlayer.service.model.exception.AtmLayerException;
@@ -19,11 +20,7 @@
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.math.BigInteger;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.attribute.FileAttribute;
 import java.nio.file.attribute.PosixFilePermission;
-import java.nio.file.attribute.PosixFilePermissions;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.util.Base64;
@@ -36,7 +33,6 @@
 @ApplicationScoped
 @Slf4j
 public class FileUtilities {
-
     public static String extractIdValue(File file, DeployableResourceType resourceTypeEnum) {
         switch (resourceTypeEnum) {
             case BPMN, DMN -> {
@@ -102,55 +98,32 @@ public static String toHexString(byte[] hash) {
     }
 
     public static File fromStringToFile(String fileBase64) {
+        if (!DirManager.decodedFilesDirectory.exists()) {
+            throw new AtmLayerException("Impossibile convertire i file in input: non è stata creata una directory sicura per il salvataggio di file temporanei.", Response.Status.INTERNAL_SERVER_ERROR, AppErrorCodeEnum.ATMLM_500);
+        }
         try {
-
             byte[] decodedBytes = Base64.getDecoder().decode(fileBase64);
-
-            String secureDirPath = System.getProperty("java.io.tmpdir") + "/mySecureDirectory";
-            File secureDir = new File(secureDirPath);
-            if (!secureDir.exists() && !secureDir.mkdirs()) {
-                throw new IOException("Impossibile creare la directory sicura.");
-            }
-
-
-            if (SystemUtils.IS_OS_UNIX) {
-                Set<PosixFilePermission> dirPermissions = EnumSet.of(
-                        PosixFilePermission.OWNER_READ,
-                        PosixFilePermission.OWNER_WRITE,
-                        PosixFilePermission.OWNER_EXECUTE
-                );
-                java.nio.file.Files.setPosixFilePermissions(secureDir.toPath(), dirPermissions);
-            }
-
             File tempFile;
-
             if (SystemUtils.IS_OS_UNIX) {
-
                 Set<PosixFilePermission> filePermissions = EnumSet.of(
                         PosixFilePermission.OWNER_READ,
                         PosixFilePermission.OWNER_WRITE,
                         PosixFilePermission.OWNER_EXECUTE
                 );
-
-                tempFile = File.createTempFile("tempfile", ".tmp", secureDir);
+                tempFile = File.createTempFile("tempfile", ".tmp", DirManager.decodedFilesDirectory);
                 java.nio.file.Files.setPosixFilePermissions(tempFile.toPath(), filePermissions);
             } else {
-
-                tempFile = File.createTempFile("tempfile", ".tmp", secureDir);
-
+                tempFile = File.createTempFile("tempfile", ".tmp", DirManager.decodedFilesDirectory);
                 boolean readable = tempFile.setReadable(true, true);
                 boolean writable = tempFile.setWritable(true, true);
                 boolean executable = tempFile.setExecutable(true, true);
-
                 if (!readable || !writable || !executable) {
                     throw new IOException("Impossibile impostare i permessi di sicurezza sul file temporaneo.");
                 }
             }
-
             try (FileOutputStream fos = new FileOutputStream(tempFile)) {
                 fos.write(decodedBytes);
             }
-
             return tempFile;
         } catch (IllegalArgumentException e) {
             log.error("Errore nella decodifica del Base64: " + e.getMessage());
@@ -160,6 +133,4 @@ public static File fromStringToFile(String fileBase64) {
             throw new AtmLayerException("Errore nella scrittura del file", Response.Status.NOT_ACCEPTABLE, AppErrorCodeEnum.FILE_DECODE_ERROR);
         }
     }
-
-
 }