dockerfile, other bs

src/main/java/io/github/lumijiez/example/ThreadedWriter.java

@@ -0,0 +1,50 @@
+package io.github.lumijiez.example;
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+public class ThreadedWriter {
+    private final String filePath;
+    private final Lock lock;
+
+    public ThreadedWriter(String fileName) {
+        String resourcesPath = System.getProperty("user.dir") + "/resources";
+        File resourcesDir = new File(resourcesPath);
+        if (!resourcesDir.exists()) {
+            resourcesDir.mkdirs();
+        }
+        this.filePath = resourcesPath + "/" + fileName;
+        this.lock = new ReentrantLock();
+        createFileIfNotExist();
+    }
+
+    private void createFileIfNotExist() {
+        File file = new File(filePath);
+        if (!file.exists()) {
+            try {
+                Files.createDirectories(Paths.get(file.getParent()));
+                file.createNewFile();
+            } catch (IOException e) {
+                System.err.println("Failed to create file: " + e.getMessage());
+            }
+        }
+    }
+
+    public void writeToFile(String content) {
+        lock.lock();
+        try (BufferedWriter writer = new BufferedWriter(new FileWriter(filePath, true))) {
+            writer.write(content);
+            writer.newLine();
+        } catch (IOException e) {
+            System.err.println("Error writing to file: " + e.getMessage());
+        } finally {
+            lock.unlock();
+        }
+    }
+}