mirror of
https://github.com/mongodb/mongo.git
synced 2024-11-30 17:10:48 +01:00
126 lines
3.7 KiB
C++
126 lines
3.7 KiB
C++
/* commands.cpp
|
|
db "commands" (sent via db.$cmd.findOne(...))
|
|
*/
|
|
|
|
/**
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3,
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "stdafx.h"
|
|
#include "query.h"
|
|
#include "pdfile.h"
|
|
#include "jsobj.h"
|
|
#include "../util/builder.h"
|
|
#include <time.h>
|
|
#include "introspect.h"
|
|
#include "btree.h"
|
|
#include "../util/lruishmap.h"
|
|
#include "javajs.h"
|
|
#include "json.h"
|
|
#include "repl.h"
|
|
#include "commands.h"
|
|
|
|
namespace mongo {
|
|
|
|
const int edebug=0;
|
|
|
|
bool dbEval(const char *ns, BSONObj& cmd, BSONObjBuilder& result, string& errmsg) {
|
|
BSONElement e = cmd.firstElement();
|
|
assert( e.type() == Code || e.type() == CodeWScope || e.type() == String );
|
|
|
|
const char *code = 0;
|
|
switch ( e.type() ) {
|
|
case String:
|
|
case Code:
|
|
code = e.valuestr();
|
|
break;
|
|
case CodeWScope:
|
|
code = e.codeWScopeCode();
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
assert( code );
|
|
|
|
if ( ! JavaJS ) {
|
|
errmsg = "db side execution is disabled";
|
|
return false;
|
|
}
|
|
|
|
#if !defined(NOJNI)
|
|
jlong f = JavaJS->functionCreate(code);
|
|
if ( f == 0 ) {
|
|
errmsg = "compile failed";
|
|
return false;
|
|
}
|
|
|
|
Scope s;
|
|
if ( e.type() == CodeWScope )
|
|
s.init( e.codeWScopeScopeData() );
|
|
s.setString("$client", database->name.c_str());
|
|
BSONElement args = cmd.findElement("args");
|
|
if ( args.type() == Array ) {
|
|
BSONObj eo = args.embeddedObject();
|
|
if ( edebug ) {
|
|
out() << "args:" << eo.toString() << endl;
|
|
out() << "code:\n" << code << endl;
|
|
}
|
|
s.setObject("args", eo);
|
|
}
|
|
|
|
int res;
|
|
{
|
|
Timer t;
|
|
res = s.invoke(f);
|
|
int m = t.millis();
|
|
if ( m > 100 ) {
|
|
out() << "dbeval slow, time: " << dec << m << "ms " << ns << endl;
|
|
OCCASIONALLY log() << code << endl;
|
|
else if ( m >= 1000 ) log() << code << endl;
|
|
}
|
|
}
|
|
if ( res ) {
|
|
result.append("errno", (double) res);
|
|
errmsg = "invoke failed: ";
|
|
errmsg += s.getString( "error" );
|
|
return false;
|
|
}
|
|
|
|
int type = s.type("return");
|
|
if ( type == Object || type == Array )
|
|
result.append("retval", s.getObject("return"));
|
|
else if ( type == NumberDouble )
|
|
result.append("retval", s.getNumber("return"));
|
|
else if ( type == String )
|
|
result.append("retval", s.getString("return").c_str());
|
|
else if ( type == Bool ) {
|
|
result.appendBool("retval", s.getBoolean("return"));
|
|
}
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
class CmdEval : public Command {
|
|
public:
|
|
virtual bool slaveOk() {
|
|
return false;
|
|
}
|
|
CmdEval() : Command("$eval") { }
|
|
bool run(const char *ns, BSONObj& cmdObj, string& errmsg, BSONObjBuilder& result, bool fromRepl) {
|
|
return dbEval(ns, cmdObj, result, errmsg);
|
|
}
|
|
} cmdeval;
|
|
|
|
} // namespace mongo
|