mirror of
https://github.com/mongodb/mongo.git
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114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
// dump.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 "Tool.h"
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#include <fcntl.h>
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using namespace mongo;
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namespace po = boost::program_options;
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class Dump : public Tool {
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public:
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Dump() : Tool( "dump" , "*" ){
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add_options()
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("out,o" , po::value<string>() , "output directory" )
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;
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}
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void doCollection( const string coll , path outputFile ) {
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cout << "\t" << coll << " to " << outputFile.string() << endl;
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int out = open( outputFile.string().c_str() , O_WRONLY | O_CREAT | O_TRUNC , 0666 );
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assert( out );
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auto_ptr<DBClientCursor> cursor = _conn.query( coll.c_str() , BSONObj() , 0 , 0 , 0 , Option_SlaveOk );
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int num = 0;
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while ( cursor->more() ) {
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BSONObj obj = cursor->next();
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write( out , obj.objdata() , obj.objsize() );
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num++;
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}
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cout << "\t\t " << num << " objects" << endl;
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close( out );
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}
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void go( const string db , const path outdir ) {
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cout << "DATABASE: " << db << "\t to \t" << outdir.string() << endl;
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create_directories( outdir );
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string sns = db + ".system.namespaces";
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auto_ptr<DBClientCursor> cursor = _conn.query( sns.c_str() , BSONObj() , 0 , 0 , 0 , Option_SlaveOk );
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while ( cursor->more() ) {
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BSONObj obj = cursor->next();
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if ( obj.toString().find( ".$" ) != string::npos )
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continue;
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const string name = obj.getField( "name" ).valuestr();
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const string filename = name.substr( db.size() + 1 );
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doCollection( name.c_str() , outdir / ( filename + ".bson" ) );
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}
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}
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int run(){
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path root( getParam( "out" , "dump" ) );
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string db = _db;
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if ( db == "*" ){
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cout << "all dbs" << endl;
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BSONObj res = _conn.findOne( "admin.$cmd" , BSON( "listDatabases" << 1 ) );
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BSONObj dbs = res.getField( "databases" ).embeddedObjectUserCheck();
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set<string> keys;
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dbs.getFieldNames( keys );
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for ( set<string>::iterator i = keys.begin() ; i != keys.end() ; i++ ) {
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string key = *i;
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BSONObj dbobj = dbs.getField( key ).embeddedObjectUserCheck();
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const char * dbName = dbobj.getField( "name" ).valuestr();
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if ( (string)dbName == "local" )
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continue;
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go ( dbName , root / dbName );
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}
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}
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else {
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go( db , root / db );
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}
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return 0;
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}
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};
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int main( int argc , char ** argv ) {
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Dump d;
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return d.main( argc , argv );
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}
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