diff --git a/TestON/TAI/src/tai_ofa/OFALoadTree.java b/TestON/TAI/src/tai_ofa/OFALoadTree.java
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+++ b/TestON/TAI/src/tai_ofa/OFALoadTree.java
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+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package tai_ofa;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.DirectoryStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.attribute.BasicFileAttributes;
+import javafx.event.Event;
+import javafx.event.EventHandler;
+import javafx.scene.Node;
+import javafx.scene.control.TreeItem;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
+
+/**
+ *
+ * @author Raghav Kashyap (raghavkashyap@paxterrasolutions.com)
+	
+ *   TestON is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+
+ *   TestON is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+
+ *   You should have received a copy of the GNU General Public License
+ *   along with TestON.  If not, see <http://www.gnu.org/licenses/>.
+
+ */
+public class OFALoadTree extends TreeItem<String> {
+
+    OFAFileOperations fileOperation = new OFAFileOperations();
+    public static Image folderCollapseImage = new Image("images/folder.jpg", 30.0, 30.0, true, true);
+    public static Image folderExpandImage = new Image("images/folder.jpg", 10.0, 10.0, true, true);
+    public static Image fileImage = new Image("images/File.png", 30.0, 30.0, true, true);
+    //this stores the full path to the file or directory
+    private String fullPath;
+
+    public String getFullPath() {
+        return (this.fullPath);
+    }
+    private boolean isDirectory;
+
+    public boolean isDirectory() {
+        return (this.isDirectory);
+    }
+
+    public OFALoadTree(Path file) {
+        super(file.toString());
+        this.fullPath = file.toString();
+        //test if this is a directory and set the icon
+        if (Files.isDirectory(file)) {
+            this.isDirectory = true;
+            if ("common".equals(file.getFileName().toString())) {
+                Node rootIcon = new ImageView(new Image(getClass().getResourceAsStream("/images/project.jpeg"), 20, 20, true, true));
+                this.setGraphic(rootIcon);
+            } else if ("cli".equals(file.getFileName().toString())) {
+                Node rootIcon2 = new ImageView(new Image(getClass().getResourceAsStream("/images/terminal.png"), 20, 20, true, true));
+                rootIcon2.setId("/images/terminal.png");
+                this.setGraphic(rootIcon2);
+            } else if ("api".equals(file.getFileName().toString())) {
+                Node rootIcon3 = new ImageView(new Image(getClass().getResourceAsStream("/images/www2.jpg"), 20, 20, true, true));
+                this.setGraphic(rootIcon3);
+            } else if ("emulator".equals(file.getFileName().toString())) {
+                Node rootIcon4 = new ImageView(new Image(getClass().getResourceAsStream("/images/mobile.png"), 20, 20, true, true));
+                this.setGraphic(rootIcon4);
+            } else if ("tool".equals(file.getFileName().toString())) {
+                Node rootIcon5 = new ImageView(new Image(getClass().getResourceAsStream("/images/automatorui.png"), 20, 20, true, true));
+                this.setGraphic(rootIcon5);
+            } else if ("contoller".equals(file.getFileName().toString())) {
+                Node rootIcon6 = new ImageView(new Image(getClass().getResourceAsStream("/images/windows.jpg"), 20, 20, true, true));
+                this.setGraphic(rootIcon6);
+            } else {
+                Node rootIcon = new ImageView(new Image(getClass().getResourceAsStream("/images/project.jpeg"), 20, 20, true, true));
+                rootIcon.setId("/images/project.jpeg");
+                this.setGraphic(rootIcon);
+            }
+        } else {
+            this.isDirectory = false;
+            String fileName = file.getFileName().toString();
+            String ext = fileOperation.getExtension(fileName);
+            if (".ospk".equals(ext)) {
+                Node rootIcon5 = new ImageView(fileImage);
+                rootIcon5.setId(".ospk");
+                this.setGraphic(rootIcon5);
+
+            } else if (".params".equals(ext)) {
+                Node rootIcon1 = new ImageView(new Image(getClass().getResourceAsStream("/images/params.jpeg"), 30, 30, true, true));
+                rootIcon1.setId(".params");
+                setGraphic(rootIcon1);
+
+            } else if (".topo".equals(ext)) {
+                Node rootIcon3 = new ImageView(new Image(getClass().getResourceAsStream("/images/tpl.png"), 30, 30, true, true));
+                rootIcon3.setId(".topo");
+                setGraphic(rootIcon3);
+            } else if (".log".equals(ext)) {
+                Node rootIcon3 = new ImageView(new Image(getClass().getResourceAsStream("/images/log.jpg"), 20, 20, true, true));
+                rootIcon3.setId(".log");
+                setGraphic(rootIcon3);
+            } else if (".rpt".equals(ext)) {
+                Node rootIcon3 = new ImageView(new Image(getClass().getResourceAsStream("/images/report.jpeg"), 20, 20, true, true));
+                rootIcon3.setId(".rpt");
+                setGraphic(rootIcon3);
+            } else if (".session".equals(ext)) {
+                Node rootIcon3 = new ImageView(new Image(getClass().getResourceAsStream("/images/session.png"), 20, 20, true, true));
+                rootIcon3.setId(".session");
+                setGraphic(rootIcon3);
+            } else if (".py".equals(ext)) {
+                Node rootIcon3 = new ImageView(new Image(getClass().getResourceAsStream("/images/py.jpg"), 20, 20, true, true));
+                rootIcon3.setId(".py");
+                setGraphic(rootIcon3);
+            }
+
+            //if you want different icons for different file types this is where you'd do it
+        }
+
+        //set the value
+        if (!fullPath.endsWith(File.separator)) {
+            //set the value (which is what is displayed in the tree)
+            String value = file.toString();
+            int indexOf = value.lastIndexOf(File.separator);
+            if (indexOf > 0) {
+                this.setValue(value.substring(indexOf + 1));
+            } else {
+                this.setValue(value);
+            }
+        }
+
+
+        this.addEventHandler(TreeItem.branchExpandedEvent(), new EventHandler() {
+            @Override
+            public void handle(Event e) {
+                OFALoadTree source = (OFALoadTree) e.getSource();
+                if (source.isDirectory() && source.isExpanded()) {
+                }
+                try {
+                    if (source.getChildren().isEmpty()) {
+                        Path path = Paths.get(source.getFullPath());
+                        BasicFileAttributes attribs = Files.readAttributes(path, BasicFileAttributes.class);
+                        if (attribs.isDirectory()) {
+                            DirectoryStream<Path> dir = Files.newDirectoryStream(path);
+                            for (Path file : dir) {
+                                OFALoadTree treeNode = new OFALoadTree(file);
+                                String fileExtension = fileOperation.getExtension(treeNode.getValue());
+                                String fileName = fileOperation.getFileName(treeNode.getValue());
+                                if (fileExtension == null || fileExtension.equals(".py") || fileExtension.equals(".ospk") || fileExtension.equals(".topo") || fileExtension.equals(".params") || fileExtension.equals(".log") || fileExtension.equals(".rpt") || fileExtension.equals(".session")) {
+                                    if (fileExtension == null) {
+                                        treeNode.setExpanded(true);
+                                        source.getChildren().add(treeNode);
+                                    } else {
+                                        if (fileExtension.matches(".(ospk|params|topo|py|log|rpt|session)")) {
+                                            String finalValue = treeNode.getValue().replace(fileExtension, "");
+                                            treeNode.setValue(finalValue);
+                                            if (!treeNode.getValue().equals("__init__")) {
+                                                source.getChildren().add(treeNode);
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+
+                } catch (Exception ex) {
+                }
+            }
+        });
+    }
+}