mirror of
https://github.com/mongodb/mongo.git
synced 2024-11-30 00:56:44 +01:00
160 lines
4.4 KiB
C++
160 lines
4.4 KiB
C++
// import.cpp
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/**
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* Copyright (C) 2008 10gen Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "../stdafx.h"
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#include "../client/dbclient.h"
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#include "../util/mmap.h"
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#include <boost/program_options.hpp>
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#include <fcntl.h>
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namespace mongo {
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namespace po = boost::program_options;
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namespace import {
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void drillDown( DBClientConnection & conn , path root ) {
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if ( is_directory( root ) ) {
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directory_iterator end;
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directory_iterator i(root);
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while ( i != end ) {
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path p = *i;
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drillDown( conn , p );
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i++;
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}
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return;
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}
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if ( ! ( endsWith( root.string().c_str() , ".bson" ) ||
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endsWith( root.string().c_str() , ".bin" ) ) ) {
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cerr << "don't know what to do with [" << root.string() << "]" << endl;
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return;
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}
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out() << root.string() << endl;
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string ns;
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{
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string dir = root.branch_path().string();
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if ( dir.find( "/" ) == string::npos )
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ns += dir;
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else
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ns += dir.substr( dir.find_last_of( "/" ) + 1 );
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}
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{
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string l = root.leaf();
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l = l.substr( 0 , l.find_last_of( "." ) );
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ns += "." + l;
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}
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out() << "\t going into namespace [" << ns << "]" << endl;
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MemoryMappedFile mmf;
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assert( mmf.map( root.string().c_str() ) );
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char * data = (char*)mmf.viewOfs();
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int read = 0;
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int num = 0;
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while ( read < mmf.length() ) {
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if ( ! *data ) {
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out() << "\t ** got unexpected end of file ** continuing..." << endl;
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break;
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}
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BSONObj o( data );
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conn.insert( ns.c_str() , o );
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read += o.objsize();
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data += o.objsize();
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if ( ! ( ++num % 1000 ) )
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out() << "read " << read << "/" << mmf.length() << " bytes so far. " << num << " objects" << endl;
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}
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out() << "\t " << num << " objects" << endl;
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}
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void go( const char * dbHost , const char * dirRoot ) {
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DBClientConnection conn;
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string errmsg;
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if ( ! conn.connect( dbHost , errmsg ) ) {
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out() << "couldn't connect : " << errmsg << endl;
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throw -11;
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}
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drillDown( conn , dirRoot );
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}
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} // namespace import
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} // namespace mongo
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using namespace mongo;
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int main( int argc , char ** argv ) {
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boost::filesystem::path::default_name_check( boost::filesystem::no_check );
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po::options_description options("import parameters");
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options.add_options()
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("help", "produce help message")
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("host,h", po::value<string>() , "mongo host to connect to")
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("dir" , po::value<string>(), "directory to import from" )
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;
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po::positional_options_description argsOptions;
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argsOptions.add( "dir" , 1 );
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po::variables_map vm;
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po::store( po::command_line_parser( argc , argv ).
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options(options).positional(argsOptions).run(), vm );
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po::notify(vm);
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if ( vm.count("help") ) {
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options.print( cerr );
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return 1;
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}
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const char * host = "127.0.0.1";
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const char * dir = "dump";
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if ( vm.count( "host" ) )
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host = vm["host"].as<string>().c_str();
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if ( vm.count( "dir" ) )
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dir = vm["dir"].as<string>().c_str();
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out() << "mongo dump" << endl;
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out() << "\t host \t" << host << endl;
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out() << "\t dir \t" << dir << endl;
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import::go( host , dir );
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return 0;
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}
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