void gpbridge_export_start(PG_FUNCTION_ARGS)
{
gphadoop_context* context = create_context(fcinfo);
parse_gphd_uri(context, false, fcinfo);
/* get rest servers list and choose one */
Relation rel = EXTPROTOCOL_GET_RELATION(fcinfo);
PxfServer* rest_server = get_pxf_server(context->gphd_uri, rel);
if (!rest_server)
ereport(ERROR,
(errcode(ERRCODE_CONNECTION_FAILURE),
errmsg("No REST servers were found (by accessing PXF URI %s)",
context->gphd_uri->uri)));
elog(DEBUG2, "chosen pxf rest_server = %s:%d", rest_server->host, rest_server->port);
build_file_name_for_write(context);
build_uri_for_write(context, rest_server);
free_datanode_rest_server(rest_server);
context->churl_headers = churl_headers_init();
add_querydata_to_http_header(context, fcinfo);
context->churl_handle = churl_init_upload(context->uri.data,
context->churl_headers);
}
void
free_datanode_rest_servers(List *srvrs)
{
ListCell *srv_cell = NULL;
foreach(srv_cell, srvrs)
{
PxfServer* srv = (PxfServer*)lfirst(srv_cell);
free_datanode_rest_server(srv);
}
