'config filter'

def config_merge_filter(self, filter_feature_name, filter_log_name):

    if (not self.is_exist_filter(filter_feature_name, filter_log_name)):
        conf_str = CE_NC_CREATE_CHANNEL_FILTER_HEADER
        conf_str += '<icFilterFlag>true</icFilterFlag>'
        if filter_feature_name:
            conf_str += ('<icFeatureName>%s</icFeatureName>' % filter_feature_name)
        if filter_log_name:
            conf_str += ('<icFilterLogName>%s</icFilterLogName>' % filter_log_name)
        conf_str += CE_NC_CREATE_CHANNEL_FILTER_TAIL
        recv_xml = set_nc_config(self.module, conf_str)
        if ('<ok/>' not in recv_xml):
            self.module.fail_json(msg='Error:    Merge    syslog    filter    failed.')
        self.updates_cmd.append(('info-center    filter-id    bymodule-alias    %s    %s' % (filter_feature_name, filter_log_name)))
        self.changed = True
