Merge pull request #8 from dmi3coder/feature/java_implementation

Fixed storing on empty features

Author: dmi3coder

.idea/workspace.xml

@@ -22,7 +22,7 @@ publishing {
         maven(MavenPublication) {
             groupId = 'de.dmi3y.behaiv'
             artifactId = 'behaiv'
-            version = '0.1.8-alpha'
+            version = '0.1.10-alpha'
 
 
             from components.java

build.gradle

@@ -74,6 +74,11 @@ public void fit(ArrayList<Pair<ArrayList<Double>, String>> data) {
 
     }
 
+    @Override
+    public boolean readyToPredict() {
+        return theta != null || super.readyToPredict();
+    }
+
     @Override
     public void updateSingle(ArrayList<Double> features, String label) {
         super.updateSingle(features, label);
@@ -100,21 +105,25 @@ public String predictOne(ArrayList<Double> features) {
 
     @Override
     public void save(BehaivStorage storage) throws IOException {
-        theta.saveToFileBinary(storage.getNetworkFile(id).toString());
-        final Gson gson = new Gson();
 
         try (final BufferedWriter writer = new BufferedWriter(new FileWriter(storage.getNetworkMetadataFile(id)))) {
+            theta.saveToFileBinary(storage.getNetworkFile(id).toString());
+            final Gson gson = new Gson();
             writer.write(gson.toJson(labels));
+        } catch (Exception e) {
+            e.printStackTrace();
         }
     }
 
     @Override
     public void restore(BehaivStorage storage) throws IOException {
-        theta = SimpleMatrix.loadBinary(storage.getNetworkFile(id).toString());
-        final Gson gson = new Gson();
 
         try (final BufferedReader reader = new BufferedReader(new FileReader(storage.getNetworkMetadataFile(id)))) {
+            theta = SimpleMatrix.loadBinary(storage.getNetworkFile(id).toString());
+            final Gson gson = new Gson();
             labels = ((List<String>) gson.fromJson(reader.readLine(), labels.getClass()));
+        } catch (Exception e) {
+            e.printStackTrace();
         }
     }