added main in Parser for testing purposes

analysis/IO/Parser.java

@@ -6,6 +6,9 @@ import org.json.simple.JSONObject;
 import org.json.simple.parser.JSONParser;
 import org.json.simple.parser.ParseException;
 
+//import java.nio;
+import java.io.File;
+import java.io.FileFilter;
 import java.io.FileReader;
 import java.io.IOException;
 import java.nio.file.FileSystems;
@@ -81,11 +84,20 @@ public class Parser {
     }
 
     public static void main(String[] args){
-        String[] filenames = new String[]{"safeRoadTrip.json", "ftaOverviewPaper_figure4.json"};
-        for (String filename : filenames) {
+//        String[] filenames = new String[]{"safeRoadTrip.json", "ftaOverviewPaper_figure4.json"};
+        Path p = FileSystems.getDefault().getPath(DIRECTORY_NAME);
+        File dir = p.toFile();
+        File[] files = dir.listFiles(new FileFilter() {
+            @Override
+            public boolean accept(File pathname) {
+                return pathname.getName().endsWith(".json");
+            }
+        });
+        for (File file : files) {
+            String filename=file.getName();
             System.out.println("------------------------"+filename);
             TreeWrapper tw = parseFile(filename);
-            if (tw.getSize() < 50) {
+            if (tw.getSize() < 5) {
                 System.out.println(tw.toString());
             } else {
                 System.out.println("<large tree> ("+tw.getSize()+" nodes)");