Implement transferable for list of files

src/main/java/me/goudham/domain/TransferableFileList.java

@@ -0,0 +1,43 @@
+package me.goudham.domain;
+
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.Transferable;
+import java.awt.datatransfer.UnsupportedFlavorException;
+import java.io.File;
+import java.util.List;
+import org.jetbrains.annotations.NotNull;
+
+public class TransferableFileList implements Transferable {
+
+    private final List<File> fileList;
+
+    public TransferableFileList(@NotNull List<File> fileList) {
+        this.fileList = fileList;
+    }
+
+    @Override
+    public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException {
+        if (flavor.equals(DataFlavor.javaFileListFlavor)) {
+            return fileList;
+        } else {
+            throw new UnsupportedFlavorException(flavor);
+        }
+    }
+
+    @Override
+    public DataFlavor[] getTransferDataFlavors() {
+        return new DataFlavor[] { DataFlavor.javaFileListFlavor };
+    }
+
+    @Override
+    public boolean isDataFlavorSupported(DataFlavor flavor) {
+        DataFlavor[] flavors = getTransferDataFlavors();
+        for (DataFlavor dataFlavor : flavors) {
+            if (flavor.equals(dataFlavor)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}