can read and isolate buffered data from raspberry

APED/app/src/main/java/com/example/aped/ui/plots/PlotFragment.java

@@ -1,13 +1,25 @@
 package com.example.aped.ui.plots;
 
+import android.net.sip.SipSession;
 import android.os.Bundle;
 import androidx.fragment.app.Fragment;
+
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import com.example.aped.MainActivity;
 import com.example.aped.R;
+import com.example.aped.communication.Communicator;
+import com.example.aped.utils.IXML;
+import com.example.aped.utils.XMLHandler;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import java.util.ArrayList;
+import java.util.Dictionary;
 import java.util.List;
 import lecho.lib.hellocharts.model.AxisValue;
 import lecho.lib.hellocharts.model.Line;
@@ -19,6 +31,10 @@ public class PlotFragment extends Fragment {
 
     /** Include the MainActivity.*/
     private MainActivity mainActivity;
+    /** List of all the devices with buffers. **/
+    private List<String> bufferedDevices;
+    /** Line Chart View that is displayed **/
+    private LineChartView lineChartView;
 
     /**
      *                                                                                          paul
@@ -32,35 +48,57 @@ public class PlotFragment extends Fragment {
                              final ViewGroup container,
                              final Bundle savedInstanceState) {
         this.mainActivity = (MainActivity) getActivity();
+        this.bufferedDevices = getBufferedDevices(mainActivity.getXml());
+
         // Inflate the layout for this fragment
         View view =  inflater.inflate(R.layout.fragment_plot, container, false);
-        LineChartView lineChartView =  view.findViewById(R.id.test_plot);
+        this.lineChartView =  view.findViewById(R.id.test_plot);
 
-        String[] xAxisData = {"15:30", "15:31", "15:32"};
+        getBufferedValues(mainActivity.getDelivery(), mainActivity.getXml());
-        int[] yAxisData =  {1, 3, 2};
-
-        List yAxisValues = new ArrayList();
-        List xAxisValues = new ArrayList();
-
-        Line line = new Line(yAxisValues);
-
-        for (int i = 0; i < xAxisData.length; i++) {
-            xAxisValues.add(i, new AxisValue(i).setLabel(xAxisData[i]));
-        }
-
-        for (int i = 0; i < yAxisData.length; i++) {
-            yAxisValues.add(new PointValue(i, yAxisData[i]));
-        }
-
-        List lines = new ArrayList();
-
-        lines.add(line);
-
-        LineChartData lineChartData = new LineChartData();
-        lineChartData.setLines(lines);
-
-        lineChartView.setLineChartData(lineChartData);
         mainActivity.getConfigurationHandler().setCurrentView(R.id.nav_plots);
         return view;
     }
+
+    private List<String> getBufferedDevices(IXML xml){
+        List<String> returnList = new ArrayList<>();
+        for (String deviceName : xml.getDeviceNames()){
+           if (xml.getBufferSize(deviceName) > 0) {
+               returnList.add(deviceName);
+           }
+        }
+        return returnList;
+    }
+
+    private void getBufferedValues(Communicator communicator, IXML xml){
+        for (String deviceName : this.bufferedDevices){
+            communicator.readBuffer(deviceName,response -> {
+                try {
+                    JSONObject buffer = response.getJSONObject("buffer");
+                    for(String pin : (List<String>) (xml.getPort(deviceName)).get("pins")) {
+                        String valueString = buffer.getString(pin);
+                        valueString = valueString.substring(2,valueString.length()-2);
+                        String[] valueStringArray = valueString.split("', '");
+                        int[] values = new int[valueString.length()];
+                        for (int i = 0; i < valueStringArray.length; i++){
+                            values[i] = Integer.parseInt(valueStringArray[i]);
+                        }
+
+                        //display data
+                        List yAxisValues = new ArrayList();
+                        for (int i = 0; i < values.length; i++){
+                            yAxisValues.add(values[i]);
+                        }
+                        Line line = new Line(yAxisValues);
+                        List lines = new ArrayList();
+                        lines.add(line);
+                        LineChartData lineChartData = new LineChartData();
+                        lineChartData.setLines(lines);
+                        this.lineChartView.setLineChartData(lineChartData);
+                    }
+                } catch (JSONException e) {
+                    Log.e("PlotFragment", "error while parsing JSON on READ BUFFER: " + e.getMessage());
+                }
+            });
+        }
+    }
 }