1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
// list_databases.cpp
/**
* Copyright (C) 2014 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/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/catalog/database.h"
#include "mongo/db/catalog/database_catalog_entry.h"
#include "mongo/db/catalog/database_holder.h"
#include "mongo/db/client.h"
#include "mongo/db/commands.h"
#include "mongo/db/global_environment_experiment.h"
#include "mongo/db/storage/storage_engine.h"
namespace mongo {
using std::set;
using std::string;
using std::stringstream;
using std::vector;
// XXX: remove and put into storage api
intmax_t dbSize( const string& database );
class CmdListDatabases : public Command {
public:
virtual bool slaveOk() const {
return false;
}
virtual bool slaveOverrideOk() const {
return true;
}
virtual bool adminOnly() const {
return true;
}
virtual bool isWriteCommandForConfigServer() const { return false; }
virtual void help( stringstream& help ) const { help << "list databases on this server"; }
virtual void addRequiredPrivileges(const std::string& dbname,
const BSONObj& cmdObj,
std::vector<Privilege>* out) {
ActionSet actions;
actions.addAction(ActionType::listDatabases);
out->push_back(Privilege(ResourcePattern::forClusterResource(), actions));
}
CmdListDatabases() : Command("listDatabases" , true ) {}
bool run(OperationContext* txn,
const string& dbname,
BSONObj& jsobj,
int,
string& errmsg,
BSONObjBuilder& result,
bool /*fromRepl*/) {
vector< string > dbNames;
StorageEngine* storageEngine = getGlobalEnvironment()->getGlobalStorageEngine();
storageEngine->listDatabases( &dbNames );
vector< BSONObj > dbInfos;
set<string> seen;
intmax_t totalSize = 0;
for ( vector< string >::iterator i = dbNames.begin(); i != dbNames.end(); ++i ) {
const string& dbname = *i;
BSONObjBuilder b;
b.append( "name", dbname );
{
ScopedTransaction transaction(txn, MODE_IS);
Lock::DBLock dbLock(txn->lockState(), dbname, MODE_IS);
Database* db = dbHolder().get( txn, dbname );
if ( !db )
continue;
const DatabaseCatalogEntry* entry = db->getDatabaseCatalogEntry();
invariant( entry );
int64_t size = entry->sizeOnDisk( txn );
b.append( "sizeOnDisk", static_cast<double>( size ) );
totalSize += size;
b.appendBool("empty", size == 0);
}
dbInfos.push_back( b.obj() );
seen.insert( i->c_str() );
}
result.append( "databases", dbInfos );
result.append( "totalSize", double( totalSize ) );
return true;
}
} cmdListDatabases;
}
|
