reorganized storage of models

src/main/java/ninja/javafx/smartcsv/files/FileStorage.java

@@ -0,0 +1,78 @@
+package ninja.javafx.smartcsv.files;
+
+import javafx.beans.property.BooleanProperty;
+import javafx.beans.property.ObjectProperty;
+import javafx.beans.property.SimpleBooleanProperty;
+import javafx.beans.property.SimpleObjectProperty;
+import ninja.javafx.smartcsv.FileReader;
+import ninja.javafx.smartcsv.FileWriter;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * This class stores files and there state
+ * @author abi
+ */
+public class FileStorage<E> {
+
+    private FileReader<E> reader;
+    private FileWriter<E> writer;
+
+    public FileStorage(FileReader<E> reader, FileWriter<E> writer) {
+        this.reader = reader;
+        this.writer = writer;
+    }
+
+    private BooleanProperty fileChanged = new SimpleBooleanProperty(true);
+    private ObjectProperty<File> file = new SimpleObjectProperty<>();
+    private ObjectProperty<E> content = new SimpleObjectProperty<E>();
+
+    public boolean isFileChanged() {
+        return fileChanged.get();
+    }
+
+    public BooleanProperty fileChangedProperty() {
+        return fileChanged;
+    }
+
+    public void setFileChanged(boolean fileChanged) {
+        this.fileChanged.set(fileChanged);
+    }
+
+    public File getFile() {
+        return file.get();
+    }
+
+    public ObjectProperty<File> fileProperty() {
+        return file;
+    }
+
+    public void setFile(File file) {
+        this.file.set(file);
+    }
+
+    public E getContent() {
+        return content.get();
+    }
+
+    public ObjectProperty<E> contentProperty() {
+        return content;
+    }
+
+    public void setContent(E content) {
+        this.content.set(content);
+    }
+
+    public void load() throws IOException {
+        reader.read(file.get());
+        setContent(reader.getContent());
+        setFileChanged(false);
+    }
+
+    public void save() throws IOException {
+        writer.setContent(content.get());
+        writer.write(file.get());
+        setFileChanged(false);
+    }
+}