How to keep the camera in the map bounds

int mapWidth = map.getProperties().get("width", Integer.class) * map.getProperties().get("tilewidth", Integer.class), mapHeight = map.getProperties().get("height", Integer.class) * map.getProperties().get("tileheight", Integer.class);
        camera.position.x = camera.position.x - camera.viewportWidth / 2 < 0 ? camera.viewportWidth / 2 : camera.position.x;
        camera.position.x = camera.position.x + camera.viewportWidth / 2 > mapWidth ? mapWidth - camera.viewportWidth / 2 : camera.position.x;
        camera.position.y = camera.position.y - camera.viewportHeight / 2 < 0 ? camera.viewportHeight / 2 : camera.position.y;
        camera.position.y = camera.position.y + camera.viewportHeight / 2 > mapHeight ? mapHeight - camera.viewportHeight / 2 : camera.position.y;