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source: trunk/FACT++/src/rootifysql.cc@ 19246

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Last change on this file since 19246 was 19235, checked in by tbretz, 6 years ago
Added --copy-* resources to be able to copy additional contents from the input file to the output.
File size: 34.3 KB

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1	#include "Database.h"
2
3	#include <boost/algorithm/string/join.hpp>
4	#include <boost/regex.hpp>
5	#include <boost/tokenizer.hpp>
6	#include <boost/algorithm/string.hpp>
7
8	#include "tools.h"
9	#include "Time.h"
10	#include "Configuration.h"
11
12	#include <TROOT.h>
13	#include <TSystem.h>
14	#include <TFile.h>
15	#include <TTree.h>
16
17	using namespace std;
18
19	// ------------------------------------------------------------------------
20
21	void SetupConfiguration(Configuration &conf)
22	{
23	po::options_description control("Database options");
24	control.add_options()
25	("uri,u", var<string>()->required(), "Database link as in\n\tuser:password@server[:port]/database[?compress=0\|1].")
26	("query,q", var<string>(""), "MySQL query (overwrites --file)")
27	("file", var<string>("rootify.sql"), "An ASCII file with the MySQL query (overwrites --query)")
28	("ignore-null,i", po_switch(), "Do not skip rows containing any NULL field")
29	("display,d", po_switch(), "Displays contents on the screen (most usefull in combination with mysql statements as SHOW or EXPLAIN)")
30	("explain", po_switch(), "Requests an EXPLAIN from the server (shows the server optimized query)\nsee also https://dev.mysql.com/doc/refman/explain-output.html")
31	("profiling", po_switch(), "Turn on profiling and print profile")
32	("var.*", var<string>(), "Predefined SQL user variables (@VAR)")
33	("env.*", vars<string>(), "Predefined environment for substitutions in the query ($ENV)")
34	("list.*", var<string>(), "Predefined environment for substitutions in the query ($ENV). The list is read from the given file (one list entry per line)")
35	("print-connection", po_switch(), "Print database connection information")
36	("verbose,v", var<uint16_t>(1), "Verbosity (0: quiet, 1: default, 2: more, 3, ...)")
37	;
38
39	po::options_description ascii("ASCII output");
40	ascii.add_options()
41	("write,w", var<string>(""), "Write output to an ascii file")
42	("delimiter", var<string>(), "The delimiter used if contents are displayed with --display (default=\\t)")
43	("copy-shabang", po_switch(), "Copy the sha-bang line if exists to the output file")
44	("copy-header", po_switch(), "Copy the header (all line starting with '#' up to the first non-comment line to the output file")
45	("copy-query", po_switch(), "Copy the query to the ascii output file")
46	("copy-comments", po_switch(), "Copy all lines starting with '#' to the output file which are not part of header")
47	("copy-all", po_switch(), "An alias for --copy-header --copy-query --copy-comments")
48	;
49
50	po::options_description root("Root file options");
51	root.add_options()
52	("out,o", var<string>("rootify.root"), "Output root file name")
53	("force,f", po_switch(), "Force overwriting an existing root file ('RECREATE')")
54	("update", po_switch(), "Update an existing root file with the new tree ('UPDATE')")
55	("compression,c", var<uint16_t>(1), "zlib compression level for the root file")
56	("tree,t", var<string>("Result"), "Name of the root tree")
57	("ignore", vars<string>(), "Ignore the given columns")
58	("null,n", po_switch(), "Redirect the output file to /dev/null (mainly for debugging purposes, e.g. performance studies)")
59	("no-fill", po_switch(), "Do not fill events into the root file (mainly for debugging purposes, e.g. performance studies)")
60	;
61
62	po::positional_options_description p;
63	p.add("file", 1); // The 1st positional options (n=1)
64	p.add("out", 1); // The 2nd positional options (n=1)
65
66	conf.AddOptions(control);
67	conf.AddOptions(ascii);
68	conf.AddOptions(root);
69	conf.SetArgumentPositions(p);
70	}
71
72	void PrintUsage()
73	{
74	cout <<
75	"rootifysql - Converts the result of a mysql query into a root file\n"
76	"\n"
77	"For convenience, this documentation uses the extended version of the options, "
78	"refer to the output below to get the abbreviations.\n"
79	"\n"
80	"Writes the result of a mysql query into a root file. For each column, a branch is "
81	"created of type double with the field name as name. This is usually the column name "
82	"if not specified otherwise by the AS mysql directive.\n"
83	"\n"
84	"Columns with CHAR or VARCHAR as field type are ignored. DATETIME, DATE and TIME "
85	"columns are converted to unix time (time_t). Rows containing any file which is "
86	"NULL are skipped if not suppressed by the --ignore-null option. Ideally, the query "
87	"is compiled in a way that no NULL field is returned. With the --display option the "
88	"result of the request is printed on the screen (NULL skipping still in action). "
89	"This can be useful to create an ascii file or to show results as 'SHOW DATABASES' "
90	"or 'EXPLAIN table'. To redirect the contents into an ascii file, the option -v0 "
91	"is useful. To suppress writing to an output file --null can be used.\n"
92	"\n"
93	"The default is to read the query from a file called rootify.sql. Except if a different "
94	"filename is specified by the --file option or a query is given with --query.\n"
95	"\n"
96	"As a trick, the rootify.sql file can be made excutable (chmod u+x rootify.sql). "
97	"If the first line contains '#!rootifysql', the script can be executed directly.\n"
98	"\n"
99	"Columns whose name start with @ are skipped. If you want them in your output file "
100	"give them a name using AS, e.g. 'SELECT @A:=5 AS A'.\n"
101	"\n"
102	"You can use variables in your sql query like @MyVar and define them on the "
103	"command line. In this example with --var.MyVar=5\n"
104	"\n"
105	"You can use environment definitions for substitutions in your SQL query. "
106	"For example --env.TEST=5 would replace $TEST or ${TEST} in your query by 5."
107	"If you specify one environment variable more than once, a list is created. "
108	"For example --env.TEST=1 --env.TEST=2 --env.TEST=3 would substitute "
109	"$TEST or ${TEST} by '1, 2, 3'. This is useful for the SQL `IN` keyword. "
110	"You can also read the values for an enviroment substitution from a file "
111	"(one element per line), e.g. --env.TEST=file.txt. Empty lines and lines "
112	"starting with a # are skipped.\n"
113	"\n"
114	"Comments in the query-file can be placed according to the SQL standard inline "
115	"/comment/ or introduced with # (shell script style) or -- (SQL style).\n"
116	"\n"
117	"In case of success, 0 is returned, a value>0 otherwise.\n"
118	"\n"
119	"Usage: rootifysql [rootify.sql [rootify.root]] [-u URI] [-q query\|-f file] [-i] [-o out] [-f] [-cN] [-t tree] [-vN]\n"
120	"\n"
121	;
122	cout << endl;
123	}
124
125	struct ExplainParser
126	{
127	string sql;
128
129	vector<string> vec;
130
131	string substitute(string _str, const boost::regex &expr)
132	{
133	boost::smatch match;
134	while (boost::regex_search(_str, match, expr, boost::regex_constants::format_first_only))
135	{
136	const auto &len = match.length();
137	const auto &pos = match.position();
138	const auto &str = match.str();
139
140	const auto it = find(vec.cbegin(), vec.cend(), str);
141	const size_t id = it==vec.cend() ? vec.size() : it-vec.cbegin();
142
143	_str.replace(pos, len, "{"+to_string(id)+"}");
144
145	if (it==vec.cend())
146	vec.push_back(str);//.substr(1, str.size()-2));
147	}
148
149	return _str;
150	}
151
152	string substitute(const string &str, const string &expr)
153	{
154	return substitute(str, boost::regex(expr));
155	}
156
157	vector<string> queries;
158
159	string resub(string str)
160	{
161	// search for "KEYWORD expression"
162	boost::regex reg("\\{[0-9]+\\}");
163
164	boost::smatch match;
165	while (boost::regex_search(str, match, reg, boost::regex_constants::format_first_only))
166	{
167	const auto &len = match.length();
168	const auto &pos = match.position();
169	const auto &arg = match.str(); // Argument
170
171	const auto idx = atoi(arg.c_str()+1);
172
173	str.replace(pos, len, resub(vec[idx]));
174	}
175
176	return str;
177	}
178
179	void expression(string expr, size_t indent=0)
180	{
181	if (expr[0]=='{')
182	{
183	const auto idx = atoi(expr.c_str()+1);
184
185	// This is a subquery
186	if (vec[idx].substr(0,3)=="(/*")
187	{
188	cout << setw(indent) << ' ' << "(\n";
189	find_tokens(vec[idx], indent+4);
190	cout << setw(indent) << ' ' << ") ";
191	}
192	else
193	// This is just something to substitute back
194	if (vec[idx].substr(0,2)=="({")
195	{
196	cout << setw(indent) << ' ' << "(" << resub(vec[idx]) << ") ";
197	}
198	else
199	{
200	if (indent>0)
201	cout << setw(indent) << ' ';
202	cout << resub(vec[idx]);
203	}
204	}
205	else
206	{
207	if (indent>0)
208	cout << setw(indent) << ' ';
209	cout << resub(expr);
210	}
211	}
212
213	void find_tokens(string str, size_t indent=0)
214	{
215	// ( COMMENT )?( TOKEN )?(( {NNN} \| NNN )( AS\|ON ( {NNN}) ))?(,)?)
216	//regex reg("(\\/\\\\ select\\#[0-9]+\\ \\\\/\\ *)?([a-zA-Z ]+)?((\\{[0-9]+\\}\|[0-9]+)(\\ ?([Aa][Ss]\|[Oo][Nn])\\ ?(\\{[0-9]+\\}))?(,)?)");
217
218	const string _com = "\\/\\\\ select\\#[0-9]+\\ \\\\/\\ *";
219
220	const string _tok = "[a-zA-Z_ ]+";
221
222	const string _nnn = "\\{[0-9]+\\}\|[0-9]+";
223
224	const string _as = "\\ ?([Aa][Ss])\\ ?";
225
226	// ( _nnn ) ( _as ( _nnn ))?(,)? // can also match noting in between two {NNN}
227	const string _exp = "("+_nnn+")" + "("+_as+"("+_nnn+"))?(,)?";
228
229	// Matche: ( _com )? ( ( _tok )? ( _exp ) \| ( _tok ) )
230	boost::regex reg("("+_com+")?" + "(" + "("+_tok+")?"+"("+_exp+")" + "\|" + "("+_tok+")" + ")");
231
232	boost::smatch match;
233	while (boost::regex_search(str, match, reg, boost::regex_constants::format_first_only))
234	{
235
236	const auto &com = match.str(1); // comment
237	const auto &tok1 = Tools::Trim(match.str(3)); // token with expression
238	const auto &arg1 = match.str(5); // argument 1
239	const auto &as = match.str(7); // as
240	const auto &arg2 = match.str(8); // argument 2
241	const auto &comma = match.str(9); // comma
242	const auto &tok2 = Tools::Trim(match.str(10)); // token without expression
243
244	if (!com.empty())
245	cout << setw(indent) << ' ' << "\033[34m" << com << "\033[0m" << '\n';
246
247	if (!tok1.empty())
248	cout << setw(indent) << ' ' << "\033[32m" << tok1 << "\033[0m" << '\n';
249	if (!tok2.empty())
250	cout << setw(indent) << ' ' << "\033[32m" << tok2 << "\033[0m" << '\n';
251
252	if (!arg1.empty())
253	{
254	expression(arg1, indent+4);
255
256	if (!as.empty())
257	cout << " \033[33m" << as << "\033[0m ";
258
259	if (!arg2.empty())
260	expression(arg2);
261
262	if (!comma.empty())
263	cout << ',';
264
265	cout << '\n';
266	}
267
268	str = str.substr(match.position()+match.length());
269	}
270	}
271
272
273	ExplainParser(const string &_sql) : sql(_sql)
274	{
275	// substitute all strings
276	sql = substitute(sql, "'[^']*'");
277
278	// substitute all escaped sequences (`something`.`something-else`)
279	sql = substitute(sql, "`[^`]`(\\.`[^`]`)*");
280
281	// substitute all paranthesis
282	sql = substitute(sql, "[a-zA-Z0-9_]\\([^\\(\\)]\\)");
283
284	//cout << sql << "\n\n";
285	find_tokens(sql);
286	cout << endl;
287	}
288	};
289
290	// Remove queries...
291	void format(string sql)
292	{
293	ExplainParser p(sql);
294
295	/*
296
297	SELECT
298	[ALL \| DISTINCT \| DISTINCTROW ]
299	[HIGH_PRIORITY]
300	[STRAIGHT_JOIN]
301	[SQL_SMALL_RESULT] [SQL_BIG_RESULT] [SQL_BUFFER_RESULT]
302	[SQL_CACHE \| SQL_NO_CACHE] [SQL_CALC_FOUND_ROWS]
303	select_expr [, select_expr ...]
304	[FROM table_references
305	[PARTITION partition_list]
306	[WHERE where_condition]
307	[GROUP BY {col_name \| expr \| position}, ... [WITH ROLLUP]]
308	[HAVING where_condition]
309	[WINDOW window_name AS (window_spec)
310	[, window_name AS (window_spec)] ...]
311	[ORDER BY {col_name \| expr \| position}
312	[ASC \| DESC], ... [WITH ROLLUP]]
313	[LIMIT {[offset,] row_count \| row_count OFFSET offset}]
314	[INTO OUTFILE 'file_name'
315	[CHARACTER SET charset_name]
316	export_options
317	\| INTO DUMPFILE 'file_name'
318	\| INTO var_name [, var_name]]
319	[FOR {UPDATE \| SHARE} [OF tbl_name [, tbl_name] ...] [NOWAIT \| SKIP LOCKED]
320	\| LOCK IN SHARE MODE]]
321	*/
322
323	/*
324	table_references:
325	escaped_table_reference [, escaped_table_reference] ...
326
327	escaped_table_reference:
328	table_reference
329	\| { OJ table_reference }
330
331	table_reference:
332	table_factor
333	\| join_table
334
335	table_factor:
336	tbl_name [PARTITION (partition_names)]
337	[[AS] alias] [index_hint_list]
338	\| table_subquery [AS] alias [(col_list)]
339	\| ( table_references )
340
341	join_table:
342	table_reference [INNER \| CROSS] JOIN table_factor [join_condition]
343	\| table_reference STRAIGHT_JOIN table_factor
344	\| table_reference STRAIGHT_JOIN table_factor ON conditional_expr
345	\| table_reference {LEFT\|RIGHT} [OUTER] JOIN table_reference join_condition
346	\| table_reference NATURAL [INNER \| {LEFT\|RIGHT} [OUTER]] JOIN table_factor
347
348	join_condition:
349	ON conditional_expr
350	\| USING (column_list)
351
352	index_hint_list:
353	index_hint [, index_hint] ...
354
355	index_hint:
356	USE {INDEX\|KEY}
357	[FOR {JOIN\|ORDER BY\|GROUP BY}] ([index_list])
358	\| IGNORE {INDEX\|KEY}
359	[FOR {JOIN\|ORDER BY\|GROUP BY}] (index_list)
360	\| FORCE {INDEX\|KEY}
361	[FOR {JOIN\|ORDER BY\|GROUP BY}] (index_list)
362
363	index_list:
364	index_name [, index_name] ...
365	*/
366
367	}
368
369	int finish(Database &connection, const uint16_t &verbose, const bool &profiling, const bool &print_connection)
370	{
371	if (verbose>0)
372	{
373	try
374	{
375	const auto resw =
376	connection.query("SHOW WARNINGS").store();
377
378	if (resw.num_rows()>0)
379	cout << "\n" << resw.num_rows() << " Warning(s) issued:\n\n";
380
381	for (size_t i=0; i<resw.num_rows(); i++)
382	{
383	const mysqlpp::Row &roww = resw[i];
384
385	cout << roww["Level"] << '[' << roww["Code"] << "]: ";
386	cout << roww["Message"] << '\n';
387	}
388	cout << endl;
389
390	}
391	catch (const exception &e)
392	{
393	cerr << "\nSHOW WARNINGS\n\n";
394	cerr << "SQL query failed:\n" << e.what() << endl;
395	return 1;
396	}
397	}
398
399	if (profiling)
400	{
401	try
402	{
403	const auto N =
404	connection.query("SHOW PROFILES").store().num_rows();
405
406	const auto resp =
407	connection.query("SHOW PROFILE ALL FOR QUERY "+to_string(verbose?N-1:N)).store();
408
409	cout << '\n';
410	cout << left;
411	cout << setw(26) << "Status" << ' ';
412	cout << right;
413	cout << setw(11) << "Duration" << ' ';
414	cout << setw(11) << "CPU User" << ' ';
415	cout << setw(11) << "CPU System" << '\n';
416	cout << "--------------------------------------------------------------\n";
417	for (size_t i=0; i<resp.num_rows(); i++)
418	{
419	const mysqlpp::Row &rowp = resp[i];
420
421	cout << left;
422	cout << setw(26) << rowp["Status"] << ' ';
423	cout << right;
424	cout << setw(11) << rowp["Duration"] << ' ';
425	cout << setw(11) << rowp["CPU_user"] << ' ';
426	cout << setw(11) << rowp["CPU_system"] << '\n';
427	}
428	cout << "--------------------------------------------------------------\n";
429	cout << endl;
430	}
431	catch (const exception &e)
432	{
433	cerr << "\nSHOW PROFILE ALL\n\n";
434	cerr << "SQL query failed:\n" << e.what() << '\n' <<endl;
435	return 2;
436	}
437	}
438
439	if (print_connection)
440	{
441	try
442	{
443	// Exchange _send and _received as it is the view of the server
444	const auto &res1 = connection.query("SHOW STATUS LIKE 'Bytes_%'").store();
445	cout << left << setw(16) << res1[1]["Variable_name"] << ' ' << Tools::Scientific(res1[0]["Value"]) << endl;
446	cout << left << setw(16) << res1[0]["Variable_name"] << ' ' << Tools::Scientific(res1[1]["Value"]) << endl;
447	cout << endl;
448	}
449	catch (const exception &e)
450	{
451	cerr << "\nSHOW STATUS LIKE 'Bytes_%'\n\n";
452	cerr << "SQL query failed:\n" << e.what() << endl;
453	return 3;
454	}
455	}
456
457	if (verbose>0)
458	cout << "Success!\n" << endl;
459	return 0;
460
461	}
462
463	int main(int argc, const char* argv[])
464	{
465	Time start;
466
467	gROOT->SetBatch();
468
469	Configuration conf(argv[0]);
470	conf.SetPrintUsage(PrintUsage);
471	SetupConfiguration(conf);
472
473	if (!conf.DoParse(argc, argv))
474	return 127;
475
476	// ----------------------------- Evaluate options --------------------------
477	const string uri = conf.Get<string>("uri");
478	const string out = conf.Get<string>("out");
479	const string file = conf.Get<string>("file");
480	const string tree = conf.Get<string>("tree");
481	const bool force = conf.Get<bool>("force");
482	const bool ignorenull = conf.Get<bool>("ignore-null");
483	const bool update = conf.Get<bool>("update");
484	const bool display = conf.Get<bool>("display");
485	const string write = conf.Get<string>("write");
486	const bool noout = conf.Get<bool>("null");
487	const bool nofill = conf.Get<bool>("no-fill");
488	const bool explain = conf.Get<bool>("explain");
489	const bool profiling = conf.Get<bool>("profiling");
490	const uint16_t verbose = conf.Get<uint16_t>("verbose");
491	const uint16_t compression = conf.Get<uint16_t>("compression");
492	const string delimiter = conf.Has("delimiter") ? conf.Get<string>("delimiter") : "\t";
493
494	const bool copy_all = conf.Get<bool>("copy-all");
495	const bool copy_shabang = conf.Get<bool>("copy-shabang");
496	const bool copy_header = copy_all \|\| conf.Get<bool>("copy-header");
497	const bool copy_query = copy_all \|\| conf.Get<bool>("copy-query");
498	const bool copy_comments = copy_all \|\| conf.Get<bool>("copy-comments");
499
500	const vector<string> _ignore = conf.Vec<string>("ignore");
501	const bool print_connection = conf.Get<bool>("print-connection");
502	//const vector<Map> mymap = conf.Vec<Map>("map");
503
504	// -------------------------------------------------------------------------
505
506	const auto vars = conf.GetWildcardOptions("var.*");
507
508	vector<string> variables;
509	for (auto var=vars.cbegin(); var!=vars.cend(); var++)
510	variables.emplace_back('@'+var->substr(4)+":="+Tools::Trim(conf.Get<string>(*var)));
511
512	// -------------------------------------------------------------------------
513
514	if (verbose>0)
515	{
516	cout << "\n------------------------ Rootify SQL -------------------------" << endl;
517	cout << "Start Time: " << Time::sql << Time(Time::local) << endl;
518	}
519
520	string query = conf.Get<string>("query");
521	if (query.empty())
522	{
523	if (verbose>0)
524	cout << "Reading query from file '" << file << "'." << endl;
525
526	ifstream fin(file);
527	if (!fin)
528	{
529	cerr << "Could not open query in '" << file << "': " << strerror(errno) << endl;
530	return 4;
531	}
532
533	getline(fin, query, (char)fin.eof());
534	}
535
536	if (query.empty())
537	{
538	cerr << "No query specified." << endl;
539	return 5;
540	}
541
542	// -------------------------------------------------------------------------
543
544	map<string, vector<string>> envs;
545
546	const auto &envs1 = conf.GetWildcardOptions("env.*");
547	for (auto env=envs1.cbegin(); env!=envs1.cend(); env++)
548	envs[env->substr(4)] = conf.Vec<string>(*env);
549
550	const auto &envs2 = conf.GetWildcardOptions("list.*");
551	for (auto env=envs2.cbegin(); env!=envs2.cend(); env++)
552	{
553	const string fname = conf.Get<string>(*env);
554	const string &ident = env->substr(5);
555
556	ifstream fin(fname);
557	if (!fin)
558	{
559	cerr << "Could not open environment in '" << fname << "' for ${" << ident << "}: " << strerror(errno) << endl;
560	return 6;
561	}
562	for (string line; getline(fin, line); )
563	{
564	const auto &l = Tools::Trim(line);
565	if (!l.empty() && l[0]!='#')
566	envs[ident].push_back(line);
567	}
568
569	if (verbose>0)
570	cout << "Found " << envs[ident].size() << " list element(s) for ${" << ident << "}" << endl;
571	}
572
573	for (auto env=envs.cbegin(); env!=envs.cend(); env++)
574	{
575	boost::regex rexpr("\\$(\\{"+env->first+"\\}\|"+env->first+"\\b)");
576	query = boost::regex_replace(query, rexpr, boost::join(env->second, ", "));
577	}
578
579	// -------------------------- Check for file permssion ---------------------
580	// Strictly speaking, checking for write permission and existance is not necessary,
581	// but it is convenient that the user does not find out that it failed after
582	// waiting long for the query result
583	//
584	// I am using root here instead of boost to be
585	// consistent with the access pattern by TFile
586	TString path(noout?"/dev/null":out.c_str());
587	gSystem->ExpandPathName(path);
588
589	if (!noout)
590	{
591	FileStat_t stat;
592	const Int_t exist = !gSystem->GetPathInfo(path, stat);
593	const Bool_t _write = !gSystem->AccessPathName(path, kWritePermission) && R_ISREG(stat.fMode);
594
595	if ((update && !exist) \|\| (update && exist && !_write) \|\| (force && exist && !_write))
596	{
597	cerr << "File '" << path << "' is not writable." << endl;
598	return 7;
599	}
600
601	if (!update && !force && exist)
602	{
603	cerr << "File '" << path << "' already exists." << endl;
604	return 8;
605	}
606	}
607
608	Time start2;
609
610	// --------------------------- Connect to database -------------------------------------------------
611
612	if (*query.rbegin()!='\n')
613	query += '\n';
614
615	if (verbose>0)
616	{
617	cout << "Connecting to database...\n";
618	cout << "Client Version: " << mysqlpp::Connection().client_version() << endl;
619	}
620
621	Database connection(uri); // Keep alive while fetching rows
622
623	if (verbose>0)
624	cout << "Server Version: " << connection.server_version() << endl;
625
626	if (print_connection)
627	{
628	try
629	{
630	const auto &res1 = connection.query("SHOW STATUS LIKE 'Compression'").store();
631	cout << "Compression of database connection is " << string(res1[0][1]) << endl;
632
633	const auto &res2 = connection.query("SHOW STATUS LIKE 'Ssl_cipher'").store();
634	cout << "Connection to databases is " << (string(res2[0][1]).empty()?"UNENCRYPTED":"ENCRYPTED ("+string(res2[0][1])+")") << endl;
635	}
636	catch (const exception &e)
637	{
638	cerr << "\nSHOW STATUS LIKE 'Compression'\n\n";
639	cerr << "SQL query failed:\n" << e.what() << endl;
640	return 9;
641	}
642	}
643
644	try
645	{
646	if (profiling)
647	connection.query("SET PROFILING=1").execute();
648	}
649	catch (const exception &e)
650	{
651	cerr << "\nSET profiling=1\n\n";
652	cerr << "SQL query failed:\n" << e.what() << endl;
653	return 10;
654	}
655
656	// -------------------------- Set user defined variables -------------------
657	if (variables.size()>0)
658	{
659	if (verbose>0)
660	cout << "Setting user defined variables..." << endl;
661
662	const string varset =
663	"SET\n "+boost::algorithm::join(variables, ",\n ");
664
665	try
666	{
667	connection.query(varset).execute();
668	}
669	catch (const exception &e)
670	{
671	cerr << '\n' << varset << "\n\n";
672	cerr << "SQL query failed:\n" << e.what() << endl;
673	return 11;
674	}
675
676	if (verbose>2)
677	cout << '\n' << varset << '\n' << endl;
678	}
679
680	// ------------------------- Explain query if requested --------------------
681
682	if (explain)
683	{
684	try
685	{
686	const auto res0 =
687	connection.query("EXPLAIN FORMAT=JSON "+query).store();
688
689	cout << res0[0][0] << endl;
690	cout << endl;
691
692	const mysqlpp::StoreQueryResult res1 =
693	connection.query("EXPLAIN "+query).store();
694
695	for (size_t i=0; i<res1.num_rows(); i++)
696	{
697	const mysqlpp::Row &row = res1[i];
698
699	cout << "\nid : " << row["id"];
700	cout << "\nselect type : " << row["select_type"];
701
702	if (!row["table"].is_null())
703	cout << "\ntable : " << row["table"];
704
705	if (!row["partitions"].is_null())
706	cout << "\npartitions : " << row["partitions"];
707
708	if (!row["key"].is_null())
709	cout << "\nselected key : " << row["key"] << " [len=" << row["key_len"] << "] out of (" << row["possible_keys"] << ")";
710
711	if (!row["type"].is_null())
712	cout << "\njoin type : " << row["type"];
713
714	//if (!row["possible_keys"].is_null())
715	// cout << "\npossible_keys: " << row["possible_keys"];
716
717	//if (!row["key_len"].is_null())
718	// cout << "\nkey_len : " << row["key_len"];
719
720	if (!row["ref"].is_null())
721	cout << "\nref : (" << row["ref"] << ") compared to the index";
722
723	if (!row["rows"].is_null())
724	cout << "\nrows : " << row["rows"];
725
726	if (!row["filtered"].is_null())
727	cout << "\nfiltered : " << row["filtered"];
728
729	if (!row["extra"].is_null())
730	cout << "\nExtra : " << row["extra"];
731
732	cout << endl;
733	}
734
735	cout << endl;
736
737	const mysqlpp::StoreQueryResult res2 =
738	connection.query("SHOW WARNINGS").store();
739
740	for (size_t i=0; i<res2.num_rows(); i++)
741	{
742	const mysqlpp::Row &row = res2[i];
743
744	// 1003 //
745	cout << row["Level"] << '[' << row["Code"] << "]:\n";
746	if (uint32_t(row["Code"])==1003)
747	format(row["Message"].c_str());
748	else
749	cout << row["Message"] << '\n' << endl;
750
751	}
752
753	}
754	catch (const exception &e)
755	{
756	cerr << '\n' << query << "\n\n";
757	cerr << "SQL query failed:\n" << e.what() << endl;
758	return 12;
759	}
760
761	return 0;
762	}
763
764	// -------------------------- Request data from database -------------------
765	if (verbose>0)
766	cout << "Requesting data... please be patient!" << endl;
767
768	if (verbose>2)
769	cout << '\n' << query << endl;
770
771	const mysqlpp::UseQueryResult res =
772	connection.query(query).use();
773
774	// -------------------------------------------------------------------------
775
776	if (verbose>0)
777	{
778	cout << "Opening file '" << path << "' [compression=" << compression << "]...\n";
779	cout << "Writing data to tree '" << tree << "'" << (nofill?" (--skipped--)":"") << endl;
780	}
781
782	// ----------------------------- Open output file --------------------------
783	TFile tfile(path, update?"UPDATE":(force?"RECREATE":"CREATE"), "Rootify SQL", compression);
784	if (tfile.IsZombie())
785	return 13;
786
787	// -------------------------------------------------------------------------
788
789	// get the first row to get the field description
790	mysqlpp::Row row = res.fetch_row();
791	if (!row)
792	{
793	cerr << "Empty set returned... nothing to write." << endl;
794	return finish(connection, verbose, profiling, print_connection)+20;
795	}
796
797	if (verbose>0)
798	cout << "Trying to setup " << row.size() << " branches..." << endl;
799
800	if (verbose>1)
801	cout << endl;
802
803	const mysqlpp::FieldNames &l = *row.field_list().list;
804
805	vector<double> buf(l.size());
806	vector<uint8_t> typ(l.size(),'n'); // n=number [double], d is used for DateTime
807
808	UInt_t cols = 0;
809
810
811	// -------------------- Configure branches of TTree ------------------------
812	TTree *ttree = new TTree(tree.c_str(), query.c_str());
813
814	size_t skipat = 0;
815	size_t skipreg = 0;
816	for (size_t i=0; i<l.size(); i++)
817	{
818	const string t = row[i].type().sql_name();
819
820	if (t.find("DATETIME")!=string::npos)
821	typ[i] = 'd';
822	else
823	if (t.find("DATE")!=string::npos)
824	typ[i] = 'D';
825	else
826	if (t.find("TIME")!=string::npos)
827	typ[i] = 'T';
828	else
829	if (t.find("VARCHAR")!=string::npos)
830	typ[i] = 'V';
831	else
832	if (t.find("CHAR")!=string::npos)
833	typ[i] = 'C';
834
835	bool found = false;
836	for (auto pattern=_ignore.cbegin(); pattern!=_ignore.cend(); pattern++)
837	{
838	if (boost::regex_match(l[i], boost::regex(*pattern)))
839	{
840	found = true;
841	typ[i] = '-';
842	skipreg++;
843	break;
844	}
845	}
846
847	if (l[i][0]=='@')
848	{
849	typ[i] = '@';
850	skipat++;
851	}
852
853	const bool use = l[i][0]!='@' && typ[i]!='V' && typ[i]!='C' && !found;
854
855	if (verbose>1)
856	cout << (use?" + ":" - ") << l[i].c_str() << " [" << t << "] {" << typ[i] << "}\n";
857
858	if (use)
859	{
860	// string name = l[i];
861	// for (const auto &m: mymap)
862	// name = boost::regex_replace(l[i], boost::regex(m.first), m.second);
863
864	ttree->Branch(l[i].c_str(), buf.data()+i);
865	cols++;
866	}
867	}
868	// -------------------------------------------------------------------------
869
870	if (verbose>1)
871	cout << endl;
872	if (verbose>0)
873	{
874	if (skipreg)
875	cout << skipreg << " branches skipped due to ignore list." << endl;
876	if (skipat)
877	cout << skipat << " branches skipped due to name starting with @." << endl;
878	cout << "Configured " << cols << " branches.\nFilling branches..." << endl;
879	}
880
881	// -------------------------------------------------------------------------
882
883	string contents;
884
885	istringstream istr(query);
886	size_t line = 0;
887	bool header = true;
888	while (istr)
889	{
890	string ibuf;
891	getline(istr, ibuf);
892	const string sbuf = Tools::Trim(ibuf);
893
894	const bool shabang = line==0 && ibuf[0]=='#' && ibuf[1]=='!';
895	const bool comment = sbuf[0]=='#' && !shabang;
896	const bool isquery = !shabang && !comment;
897	if (isquery)
898	header = false;
899
900	line++;
901
902	if ((copy_shabang && shabang) \|\|
903	(copy_header && comment && header) \|\|
904	(copy_query && isquery) \|\|
905	(copy_comments && comment && !header))
906	contents += '#' + ibuf + '\n';
907
908	}
909
910	ofstream fout(write);
911	if (!write.empty() && !fout)
912	cout << "WARNING: Writing to '" << write << "' failed: " << strerror(errno) << endl;
913
914	if (display)
915	{
916	cout << endl;
917	cout << contents << endl;
918	cout << "# " << row.field_list(delimiter.c_str()) << endl;
919	}
920
921	if (!write.empty())
922	{
923	fout << contents;
924	fout << "# " << row.field_list(delimiter.c_str()) << endl;
925	}
926
927	// ---------------------- Fill TTree with DB data --------------------------
928	size_t count = 0;
929	size_t skip = 0;
930	do
931	{
932	count++;
933
934	if (display)
935	cout << row.value_list(delimiter.c_str(), mysqlpp::do_nothing) << '\n';
936	if (!write.empty())
937	fout << row.value_list(delimiter.c_str(), mysqlpp::do_nothing) << '\n';
938
939	size_t idx=0;
940	for (auto col=row.begin(); col!=row.end(); col++, idx++)
941	{
942	if (!ignorenull && col->is_null())
943	{
944	skip++;
945	break;
946	}
947
948	switch (typ[idx])
949	{
950	case 'd':
951	buf[idx] = time_t((mysqlpp::DateTime)(*col));
952	break;
953
954	case 'D':
955	buf[idx] = time_t((mysqlpp::Date)(*col));
956	break;
957
958	case 'T':
959	buf[idx] = time_t((mysqlpp::Time)(*col));
960	break;
961
962	case 'V':
963	case 'C':
964	case '-':
965	case '@':
966	break;
967
968	default:
969	buf[idx] = atof(col->c_str());
970	}
971	}
972
973	if (idx==row.size() && !nofill)
974	ttree->Fill();
975
976	row = res.fetch_row();
977
978
979	} while (row);
980
981	// -------------------------------------------------------------------------
982
983	if (display)
984	cout << '\n' << endl;
985
986	if (verbose>0)
987	{
988	cout << count << " rows fetched." << endl;
989	if (skip>0)
990	cout << skip << " rows skipped due to NULL field." << endl;
991
992	cout << ttree->GetEntries() << " rows filled into tree." << endl;
993	}
994
995	ttree->Write();
996	tfile.Close();
997
998	if (verbose>0)
999	{
1000	const auto sec = Time().UnixTime()-start.UnixTime();
1001
1002	cout << Tools::Scientific(tfile.GetSize()) << "B written to disk.\n";
1003	cout << "File closed.\n";
1004	cout << "Execution time: " << sec << "s ";
1005	cout << "(" << Tools::Fractional(sec/count) << "s/row)\n";
1006	cout << "--------------------------------------------------------------" << endl;
1007	}
1008
1009	return finish(connection, verbose, profiling, print_connection);
1010	}

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