extracted load and save service and generalize file writer

src/main/java/ninja/javafx/smartcsv/fx/util/SaveFileService.java

@@ -0,0 +1,70 @@
+/*
+   The MIT License (MIT)
+   -----------------------------------------------------------------------------
+
+   Copyright (c) 2015 javafx.ninja <info@javafx.ninja>                                              
+                                                                                                                    
+   Permission is hereby granted, free of charge, to any person obtaining a copy
+   of this software and associated documentation files (the "Software"), to deal
+   in the Software without restriction, including without limitation the rights
+   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+   copies of the Software, and to permit persons to whom the Software is
+   furnished to do so, subject to the following conditions:
+
+   The above copyright notice and this permission notice shall be included in
+   all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+   THE SOFTWARE.
+  
+*/
+
+package ninja.javafx.smartcsv.fx.util;
+
+import javafx.concurrent.Service;
+import javafx.concurrent.Task;
+import ninja.javafx.smartcsv.FileWriter;
+import ninja.javafx.smartcsv.csv.CSVFileWriter;
+
+import java.io.File;
+
+import static javafx.application.Platform.runLater;
+
+/**
+ * Service class for async load of a csv file
+ */
+@org.springframework.stereotype.Service
+public class SaveFileService extends Service {
+
+    private File file;
+    private FileWriter writer;
+
+    public void setWriter(FileWriter writer) {
+        this.writer = writer;
+    }
+
+    public void setFile(File value) {
+        file = value;
+    }
+
+    @Override
+    protected Task createTask() {
+        return new Task() {
+            @Override
+            protected Void call() throws Exception {
+                try {
+                    writer.write(file);
+                } catch (Throwable ex) {
+                    ex.printStackTrace();
+                }
+                return null;
+            }
+        };
+    }
+
+}