установка прав на файл линукса в ProcessLogger

src/main/java/kz/project/printedFormsService/logging/ProcessLogger.java

 package kz.project.printedFormsService.logging;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import jakarta.servlet.http.HttpServletRequest;
 import kz.project.printedFormsService.converter.JwtAuthConverter;
 import org.apache.tomcat.util.http.fileupload.FileUtils;
@@ -20,11 +21,13 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.StandardCopyOption;
+import java.nio.file.attribute.PosixFilePermission;
+import java.text.ParseException;
 import java.time.Instant;
 import java.time.ZoneId;
 import java.time.ZonedDateTime;
-import java.util.Date;
-import java.util.Locale;
+import java.util.*;
+import java.util.stream.Collectors;
 
 /* Класс для логгирования старта и завершения процессов в формате SIEM и на естественном языке */
 @Component
@@ -75,28 +78,43 @@ public class ProcessLogger {
     }
 
     public void write(Class javaClass, String processName, String descriptionPrefix, String description){
-        String delimiter = this.delimiter != null ? this.delimiter : DEFAULT_DELIMITER;
         String fileName = this.logFileName != null ? this.logFileName : DEFAULT_FILENAME;
 
         try {
             HttpServletRequest request = getRequest();
 
-            String ip = request.getRemoteAddr();
-            String userName = null;
-
-            String authHeader = request.getHeader(HttpHeaders.AUTHORIZATION);
-            if (authHeader != null){
-                userName = JwtAuthConverter.getUsername(authHeader.substring(7));
-            } else {
-                authHeader = request.getHeader("X-API-Key");
-                if (authHeader != null) userName = authHeader.substring(9);
+            String logRow = getLogRow(request, javaClass.getName(), processName, descriptionPrefix, description, fileName);
+
+            File file = new File(fileName);
+            controlFileSize(file);
+            boolean isCreated = file.createNewFile();
+            if (!isValidFile(file)) return;
+            if (isUnixSystem()){
+                setFilePermissions(file);
             }
 
-            String logRow = String.format(
+            FileWriter writer = new FileWriter(fileName, true);
+            writer.append(logRow).append(System.lineSeparator());
+            writer.close();
+        } catch (FileNotFoundException fnfe){
+            LOGGER.error("Ошибка чтения/записи файла {}. Недостаточно прав.", fileName);
+        } catch (Exception e){
+            LOGGER.error(e.getMessage(), e);
+        }
+    }
+
+    private String getLogRow(HttpServletRequest request, String className, String processName, String descriptionPrefix, String description, String fileName){
+        String delimiter = this.delimiter != null ? this.delimiter : DEFAULT_DELIMITER;
+
+        try {
+            String ip = request.getRemoteAddr();
+            String userName = getUserName(request);
+
+            return String.format(
                     "%s%s%s.%s%s%s%s%s%s%s%s%s%s",
                     serviceName,
                     delimiter,
-                    javaClass.getSimpleName(),
+                    className,
                     processName,
                     delimiter,
                     getTodayDateTimeString(),
@@ -108,21 +126,24 @@ public class ProcessLogger {
                     descriptionPrefix,
                     description
             );
-
-            File file = new File(fileName);
-            controlFileSize(file);
-
-            boolean isCreated = file.createNewFile();
-            if (!isValidFile(file)) return;
-
-            FileWriter writer = new FileWriter(fileName, true);
-            writer.append(logRow).append(System.lineSeparator());
-            writer.close();
-        } catch (FileNotFoundException fnfe){
-            LOGGER.error("Ошибка чтения/записи файла {}. Недостаточно прав.", fileName);
         } catch (Exception e){
             LOGGER.error(e.getMessage(), e);
+            return "";
+        }
+    }
+
+    private String getUserName(HttpServletRequest request) throws ParseException {
+        String authHeader = request.getHeader(HttpHeaders.AUTHORIZATION);
+        String userName = null;
+
+        if (authHeader != null){
+            userName = JwtAuthConverter.getUsername(authHeader.substring(7));
+        } else {
+            authHeader = request.getHeader("X-API-Key");
+            if (authHeader != null) userName = authHeader.substring(9);
         }
+
+        return userName;
     }
 
     private boolean isValidFile(File file){
@@ -133,10 +154,18 @@ public class ProcessLogger {
 
     private boolean isOverwhelmed(File file){
         int maxSizeMegabytes = logFileSize > 0 ? logFileSize : DEFAULT_FILE_SIZE;
-        long fileSizeMegabytes = file.length() / 1024*1024;
+        long fileSizeMegabytes = file.length() / (1024*1024);
+        LOGGER.info("maxSizeMegabytes {}", maxSizeMegabytes);
+        LOGGER.info("fileSizeMegabytes {}", fileSizeMegabytes);
+        LOGGER.info("fileSizeMegabytes >= maxSizeMegabytes {}", fileSizeMegabytes >= maxSizeMegabytes);
         return fileSizeMegabytes >= maxSizeMegabytes;
     }
 
+    private boolean isUnixSystem(){
+        String osName = System.getProperty("os.name").toLowerCase();
+        return osName.contains("nix") || osName.contains("nux");
+    }
+
     private void copyFile(File file) throws IOException {
         String filePath = this.logFileName != null ? this.logFileName : DEFAULT_FILENAME;
         String todayString = getTodayDateTimeString();
@@ -156,6 +185,11 @@ public class ProcessLogger {
         }
     }
 
+    private void setFilePermissions(File file) throws IOException {
+        Set<PosixFilePermission> permissions = Arrays.stream(PosixFilePermission.values()).collect(Collectors.toSet());
+        Files.setPosixFilePermissions(file.toPath(), permissions);
+    }
+
     private String getTodayDateTimeString(){
         Instant instant = new Date().toInstant();
         ZonedDateTime zonedDateTime = instant.atZone(this.zoneId);