[feat] save generated images to temp (#39)

* [feat] getter in TrialData

* [fix] datetime

* [fix] startTime can be null

* [feat] AbsScene und Log hinzugefügt

* [fix] stage

* [fix] resourcs directory name

* [fix] controller name

* [fix] log size

* [feat] Image Saver for generated Images

* [style] checkstyle

Co-authored-by: joshuajeschek <joshua.jeschek@gmail.com>
Co-authored-by: Joshua Jeschek <64850647+joshuajeschek@users.noreply.github.com>

src/main/java/github/weichware10/util/Files.java

@@ -1,5 +1,7 @@
 package github.weichware10.util;
 
+import java.awt.image.BufferedImage;
+import java.awt.image.RenderedImage;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
@@ -10,6 +12,7 @@
 import java.net.URL;
 import java.util.Arrays;
 import java.util.List;
+import javax.imageio.ImageIO;
 import org.apache.commons.io.FileUtils;
 
 /**
@@ -78,6 +81,29 @@ public static String saveImage(String imageUrl) throws MalformedURLException,
         return destName;
     }
 
+    /**
+     * Speichert genertiertes Bild im temp Ordner.
+     *
+     * @param buffImage - Generiertes Bild
+     * @param fileName - Dateiname
+     * @return Speicheradresse
+     * @throws IOException
+     * @throws IllegalArgumentException
+     */
+    public static String saveGeneratedImage(BufferedImage buffImage, String fileName)
+            throws IOException, IllegalArgumentException {
+        if (tmpdir == null) {
+            tmpdir = createTempDir();
+        }
+        RenderedImage rendImage = buffImage;
+
+        String destName = tmpdir + "/" + fileName;
+        File file = new File(destName);
+        ImageIO.write(rendImage, "png", file);
+
+        return destName;
+    }
+
     /**
      * Löscht angelegten temporären Ordner beim Beenden der App.
      */