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// dump.cpp
/**
* Copyright (C) 2008 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../stdafx.h"
#include "../client/dbclient.h"
#include "Tool.h"
#include <fcntl.h>
using namespace mongo;
namespace po = boost::program_options;
class Dump : public Tool {
public:
Dump() : Tool( "dump" , "*" ){
add_options()
("out,o" , po::value<string>() , "output directory" )
;
}
void doCollection( const string coll , path outputFile ) {
cout << "\t" << coll << " to " << outputFile.string() << endl;
int out = open( outputFile.string().c_str() , O_WRONLY | O_CREAT | O_TRUNC , 0666 );
assert( out );
auto_ptr<DBClientCursor> cursor = conn().query( coll.c_str() , BSONObj() , 0 , 0 , 0 , Option_SlaveOk );
int num = 0;
while ( cursor->more() ) {
BSONObj obj = cursor->next();
write( out , obj.objdata() , obj.objsize() );
num++;
}
cout << "\t\t " << num << " objects" << endl;
close( out );
}
void go( const string db , const path outdir ) {
cout << "DATABASE: " << db << "\t to \t" << outdir.string() << endl;
create_directories( outdir );
string sns = db + ".system.namespaces";
auto_ptr<DBClientCursor> cursor = conn().query( sns.c_str() , BSONObj() , 0 , 0 , 0 , Option_SlaveOk );
while ( cursor->more() ) {
BSONObj obj = cursor->next();
if ( obj.toString().find( ".$" ) != string::npos )
continue;
const string name = obj.getField( "name" ).valuestr();
const string filename = name.substr( db.size() + 1 );
if ( _coll.length() > 0 && db + "." + _coll != name && _coll != name )
continue;
doCollection( name.c_str() , outdir / ( filename + ".bson" ) );
}
}
int run(){
path root( getParam( "out" , "dump" ) );
string db = _db;
if ( db == "*" ){
cout << "all dbs" << endl;
BSONObj res = conn().findOne( "admin.$cmd" , BSON( "listDatabases" << 1 ) );
BSONObj dbs = res.getField( "databases" ).embeddedObjectUserCheck();
set<string> keys;
dbs.getFieldNames( keys );
for ( set<string>::iterator i = keys.begin() ; i != keys.end() ; i++ ) {
string key = *i;
BSONObj dbobj = dbs.getField( key ).embeddedObjectUserCheck();
const char * dbName = dbobj.getField( "name" ).valuestr();
if ( (string)dbName == "local" )
continue;
go ( dbName , root / dbName );
}
}
else {
go( db , root / db );
}
return 0;
}
};
int main( int argc , char ** argv ) {
Dump d;
return d.main( argc , argv );
}
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