/**
* Loads database schema from dump file.
*
* @param file input file to be read
*
* @return database schema from dump fle
*/
public static function load_database($files)
{
// one or more files to load as database
if (!is_array($files)) {
$files = array($files);
}
pgsql8::$track_pg_identifiers = true;
pgsql8::$known_pg_identifiers = array();
$database = new SimpleXMLElement('<dbsteward></dbsteward>');
dbx::set_default_schema($database, 'public');
foreach ($files as $file) {
dbsteward::notice("Loading " . $file);
$fp = fopen($file, 'r');
if ($fp === false) {
throw new exception("failed to open database dump file " . $file);
}
$line = fgets($fp);
while ($line != null) {
// blindly include LITERAL_SQL_INCLUDE lines in the database literal_sql collection
if (preg_match(self::PATTERN_LITERAL_SQL, $line, $matches) > 0) {
dbx::add_sql($database, trim($line));
// clear the line that was literally obsorbed
$line = ' ';
}
$line = trim(self::strip_comment(trim($line)));
if (strlen($line) == 0) {
$line = fgets($fp);
continue;
} else {
if (preg_match(self::PATTERN_INSERT_INTO, $line, $matches) > 0) {
pgsql8_parser_insert_into::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_DELETE_FROM, $line, $matches) > 0) {
pgsql8_parser_delete_from::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_CREATE_LANGUAGE, $line, $matches) > 0) {
pgsql8_parser_create_language::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_ALTER_LANGUAGE, $line, $matches) > 0) {
pgsql8_parser_alter_language::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_CREATE_TYPE, $line, $matches) > 0) {
pgsql8_parser_create_type::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_CREATE_SCHEMA, $line, $matches) > 0) {
pgsql8_parser_create_schema::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_DEFAULT_SCHEMA, $line, $matches) > 0) {
dbx::set_default_schema($database, $matches[1]);
} else {
if (preg_match(self::PATTERN_ALTER_SCHEMA, $line, $matches) > 0) {
pgsql8_parser_alter_schema::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_CREATE_TABLE, $line, $matches) > 0) {
pgsql8_parser_create_table::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_ALTER_TABLE, $line, $matches) > 0) {
pgsql8_parser_alter_table::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_CREATE_SEQUENCE, $line, $matches) > 0) {
pgsql8_parser_create_sequence::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_ALTER_SEQUENCE, $line, $matches) > 0) {
pgsql8_parser_alter_sequence::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_CREATE_INDEX, $line, $matches) > 0) {
pgsql8_parser_create_index::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_CREATE_VIEW, $line, $matches) > 0) {
pgsql8_parser_create_view::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_ALTER_VIEW, $line, $matches) > 0) {
pgsql8_parser_alter_view::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_CREATE_TRIGGER, $line, $matches) > 0) {
pgsql8_parser_create_trigger::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_CREATE_FUNCTION, $line, $matches) > 0) {
pgsql8_parser_create_function::parse($database, self::get_whole_function($fp, $line));
} else {
if (preg_match(self::PATTERN_ALTER_FUNCTION, $line, $matches) > 0) {
pgsql8_parser_alter_function::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_GRANT_REVOKE, $line, $matches) > 0) {
pgsql8_parser_grant_revoke::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_CONFIG_PARAMETER, $line, $matches) > 0) {
pgsql8_parser_config_parameter::parse($database, self::get_whole_command($fp, $line));
} else {
if (preg_match(self::PATTERN_SET, $line, $matches) > 0 || preg_match(self::PATTERN_COMMENT, $line, $matches) > 0 || preg_match(self::PATTERN_SELECT, $line, $matches) > 0 || preg_match(self::PATTERN_BEGIN_END, $line, $matches) > 0) {
// @TODO: implement these pg_dump modifiers?
self::get_whole_command($fp, $line);
} else {
throw new exception("Line did not match to any patterns: " . $line);
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
$line = fgets($fp);
/* Development debug: every line, save our current rendition of $database to disk
xml_parser::save_xml(dirname(__FILE__) . '/../../../../dbsteward_monitor.xml', $database->asXML());
/**/
//echo $line . "\n";
}
fclose($fp);
}
pgsql8::$track_pg_identifiers = false;
return $database;
}