client.setInitParameterMap(params);
            }
        }
    }

    /**
     * Sets the client map.
     * @param clientMap The map of clients.
     */
    public void setClientMap(final Map<Pattern, CrawlerClient> clientMap) {
        this.clientMap = clientMap;
    }

    /**
     * Closes all clients in the factory.
     */
    @Override
    public void close() {