Add REST implementation skeleton

The Location class is still in flux, so waiting on that.

UNCCScavenger/src/edu/uncc/scavenger/rest/Location.java

@@ -0,0 +1,5 @@
+package edu.uncc.scavenger.rest;
+
+public class Location {
+
+}

UNCCScavenger/src/edu/uncc/scavenger/rest/LocationClient.java

@@ -0,0 +1,34 @@
+package edu.uncc.scavenger.rest;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import edu.uncc.scavenger.R;
+import android.content.Context;
+
+import retrofit.RestAdapter;
+
+public class LocationClient {
+	
+	
+	
+	public static LocationService getAdapter(Context ctx) {
+		String endpoint = ctx.getString(R.string.endpoint);
+		RestAdapter ra = new RestAdapter.Builder().setEndpoint(endpoint).build();
+		return ra.create(LocationService.class);
+	}
+	
+	public static String validateLocation(Context ctx, int id, String key) {
+		LocationService client = getAdapter(ctx);
+		Map<String, String> keys = new HashMap<String, String>();
+		keys.put("key", key);
+		keys.put("id", String.valueOf(id));
+		return client.getResult(keys);
+	}
+	
+	public static List<Location> getLocations(Context ctx) {
+		LocationService client = getAdapter(ctx);
+		return client.listLocations();
+	}
+}

UNCCScavenger/src/edu/uncc/scavenger/rest/LocationService.java

@@ -0,0 +1,17 @@
+package edu.uncc.scavenger.rest;
+
+import java.util.List;
+import java.util.Map;
+
+import retrofit.http.GET;
+import retrofit.http.QueryMap;
+
+public interface LocationService {
+	
+	@GET("/locations")
+	List<Location> listLocations();
+	
+	@GET("/validate")
+	String getResult(@QueryMap Map<String, String> keys);
+
+}