read RobotConfigurator from config file

src/main/java/com/team766/hal/GenericRobotMain.java

@@ -40,6 +40,7 @@ public final class GenericRobotMain {
     public GenericRobotMain() {
         Scheduler.getInstance().reset();
 
+        configurator = RobotSelector.createConfigurator();
         m_autonSelector = new AutonomousSelector(configurator.getAutonomousModes());
         m_webServer = new WebServer();
         m_webServer.addHandler(new Dashboard());

src/main/java/com/team766/hal/RobotSelector.java

@@ -1,10 +1,38 @@
 package com.team766.hal;
 
+import com.team766.config.ConfigFileReader;
+import com.team766.library.ValueProvider;
+import com.team766.logging.Category;
+import com.team766.logging.Logger;
+import com.team766.logging.LoggerExceptionUtils;
+import com.team766.logging.Severity;
+import com.team766.robot.example.ExampleConfigurator;
+
 public final class RobotSelector {
+
+    private static final String ROBOT_CONFIGURATOR_KEY = "robotConfigurator";
+    private static final String DEFAULT_CONFIGURATOR = ExampleConfigurator.class.getName();
+
     private RobotSelector() {}
 
-    public static RobotConfigurator createConfigurator(String configurator) throws Exception {
-        Class<RobotConfigurator> clazz = (Class<RobotConfigurator>) Class.forName(configurator);
-        return clazz.getDeclaredConstructor().newInstance();
+    public static RobotConfigurator createConfigurator() {
+        ValueProvider<String> configuratorProvider =
+                ConfigFileReader.instance.getString(ROBOT_CONFIGURATOR_KEY);
+        String robotConfigurator =
+                configuratorProvider.hasValue() ? configuratorProvider.get() : DEFAULT_CONFIGURATOR;
+
+        try {
+            Class<RobotConfigurator> clazz =
+                    (Class<RobotConfigurator>) Class.forName(robotConfigurator);
+            return clazz.getDeclaredConstructor().newInstance();
+        } catch (Exception e) {
+            Logger.get(Category.FRAMEWORK)
+                    .logData(
+                            Severity.ERROR,
+                            "Unable to create RobotConfigurator {0}.  Using default.",
+                            robotConfigurator);
+            LoggerExceptionUtils.logException(e);
+            return new ExampleConfigurator();
+        }
     }
 }

src/main/java/com/team766/robot/example/ExampleConfigurator.java

@@ -0,0 +1,21 @@
+package com.team766.robot.example;
+
+import com.team766.framework.AutonomousMode;
+import com.team766.framework.Procedure;
+import com.team766.hal.RobotConfigurator;
+
+public class ExampleConfigurator implements RobotConfigurator {
+    public ExampleConfigurator() {}
+
+    public void initializeMechanisms() {
+        Robot.robotInit();
+    }
+
+    public Procedure createOI() {
+        return new OI();
+    }
+
+    public AutonomousMode[] getAutonomousModes() {
+        return AutonomousModes.AUTONOMOUS_MODES;
+    }
+}

src/main/java/com/team766/robot/gatorade/GatoradeConfigurator.java

@@ -0,0 +1,21 @@
+package com.team766.robot.gatorade;
+
+import com.team766.framework.AutonomousMode;
+import com.team766.framework.Procedure;
+import com.team766.hal.RobotConfigurator;
+
+public class GatoradeConfigurator implements RobotConfigurator {
+    public GatoradeConfigurator() {}
+
+    public void initializeMechanisms() {
+        Robot.robotInit();
+    }
+
+    public Procedure createOI() {
+        return new OI();
+    }
+
+    public AutonomousMode[] getAutonomousModes() {
+        return AutonomousModes.AUTONOMOUS_MODES;
+    }
+}