Catching JSON exceptions and raising an AlprException if anything goes wrong in the Java binding

src/bindings/java/src/com/openalpr/jni/Alpr.java

@@ -1,5 +1,7 @@
 package com.openalpr.jni;
 
+import com.openalpr.jni.json.JSONException;
+
 public class Alpr {
     static {
         // Load the OpenALPR library at runtime
@@ -36,17 +38,27 @@ public class Alpr {
         return is_loaded();
     }
 
-    public AlprResults recognize(String imageFile)
+    public AlprResults recognize(String imageFile) throws AlprException
     {
+        try {
             String json = native_recognize(imageFile);
             return new AlprResults(json);
+        } catch (JSONException e)
+        {
+            throw new AlprException("Unable to parse ALPR results");
+        }
     }
 
 
-    public AlprResults recognize(byte[] imageBytes)
+    public AlprResults recognize(byte[] imageBytes) throws AlprException
     {
+        try {
             String json = native_recognize(imageBytes);
             return new AlprResults(json);
+        } catch (JSONException e)
+        {
+            throw new AlprException("Unable to parse ALPR results");
+        }
     }
 
 

src/bindings/java/src/com/openalpr/jni/AlprCoordinate.java

@@ -1,13 +1,14 @@
 package com.openalpr.jni;
 
 
+import com.openalpr.jni.json.JSONException;
 import com.openalpr.jni.json.JSONObject;
 
 public class AlprCoordinate {
     private final int x;
     private final int y;
 
-    AlprCoordinate(JSONObject coordinateObj)
+    AlprCoordinate(JSONObject coordinateObj) throws JSONException
     {
         x = coordinateObj.getInt("x");
         y = coordinateObj.getInt("y");

src/bindings/java/src/com/openalpr/jni/AlprException.java

@@ -0,0 +1,9 @@
+package com.openalpr.jni;
+
+
+public class AlprException extends Exception {
+
+    public AlprException(String s) {
+        super(s);
+    }
+}

src/bindings/java/src/com/openalpr/jni/AlprPlate.java

@@ -1,6 +1,7 @@
 package com.openalpr.jni;
 
 
+import com.openalpr.jni.json.JSONException;
 import com.openalpr.jni.json.JSONObject;
 
 public class AlprPlate {
@@ -8,7 +9,7 @@ public class AlprPlate {
     private final float overall_confidence;
     private final boolean matches_template;
 
-    AlprPlate(JSONObject plateObj)
+    AlprPlate(JSONObject plateObj) throws JSONException
     {
         characters = plateObj.getString("plate");
         overall_confidence = (float) plateObj.getDouble("confidence");

src/bindings/java/src/com/openalpr/jni/AlprPlateResult.java

@@ -2,6 +2,7 @@ package com.openalpr.jni;
 
 
 import com.openalpr.jni.json.JSONArray;
+import com.openalpr.jni.json.JSONException;
 import com.openalpr.jni.json.JSONObject;
 
 import java.util.ArrayList;
@@ -30,7 +31,7 @@ public class AlprPlateResult {
     private final int regionConfidence;
     private final String region;
 
-    AlprPlateResult(JSONObject plateResult)
+    AlprPlateResult(JSONObject plateResult) throws JSONException
     {
         requested_topn = plateResult.getInt("requested_topn");
 

src/bindings/java/src/com/openalpr/jni/AlprRegionOfInterest.java

@@ -1,5 +1,6 @@
 package com.openalpr.jni;
 
+import com.openalpr.jni.json.JSONException;
 import com.openalpr.jni.json.JSONObject;
 
 
@@ -9,7 +10,7 @@ public class AlprRegionOfInterest {
     private final int width;
     private final int height;
 
-    AlprRegionOfInterest(JSONObject roiObj)
+    AlprRegionOfInterest(JSONObject roiObj) throws JSONException
     {
         x = roiObj.getInt("x");
         y = roiObj.getInt("y");

src/bindings/java/src/com/openalpr/jni/AlprResults.java

@@ -1,6 +1,7 @@
 package com.openalpr.jni;
 
 import com.openalpr.jni.json.JSONArray;
+import com.openalpr.jni.json.JSONException;
 import com.openalpr.jni.json.JSONObject;
 
 import java.util.ArrayList;
@@ -16,7 +17,7 @@ public class AlprResults {
 
     private List<AlprRegionOfInterest> regionsOfInterest;
 
-    AlprResults(String json)
+    AlprResults(String json) throws JSONException
     {
         JSONObject jobj = new JSONObject(json);