Add map background rest-function

code/moya-web/src/main/java/fi/codecrew/moya/rest/placemap/v1/PlacemapRestViewV1.java

 package fi.codecrew.moya.rest.placemap.v1;
 
 import java.util.ArrayList;
+import java.util.Date;
 import java.util.List;
 
 import javax.ejb.EJB;
@@ -12,6 +13,8 @@ import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
 import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.ResponseBuilder;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -45,7 +48,7 @@ public class PlacemapRestViewV1 {
 	@POST
 	@Path("/place/{id}/reserve")
 	public void reservePlace() {
-		logger .warn("Reserving not yet implemented");
+		logger.warn("Reserving not yet implemented");
 	}
 
 	@GET
@@ -59,6 +62,18 @@ public class PlacemapRestViewV1 {
 	}
 
 	@GET
+	@Path("{id}/background")
+	public Response getBackground(@PathParam("id") Integer id) {
+
+		EventMap map = placebean.findMap(id);
+		byte[] data = map.getMapData();
+		ResponseBuilder ret = Response.ok(data, "image/png");
+		ret.expires(new Date(System.currentTimeMillis() +  6*60*60*1000));
+		return ret.build();
+
+	}
+
+	@GET
 	@Path("{id}/places")
 	public SimplePlacelistRoot getPlaces(@PathParam("id") Integer mapId)
 	{