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mongodb/scripting/engine_v8.cpp
2009-10-10 01:30:00 -04:00

79 lines
2.3 KiB
C++

#include "engine_v8.h"
#include "v8_wrapper.h"
#include "v8_utils.h"
namespace mongo {
V8ScriptEngine::V8ScriptEngine()
: _handleScope() , _globalTemplate( ObjectTemplate::New() ) {
}
V8ScriptEngine::~V8ScriptEngine(){
}
void ScriptEngine::setup(){
if ( !globalScriptEngine ){
globalScriptEngine = new V8ScriptEngine();
}
}
V8Scope::V8Scope( V8ScriptEngine * engine )
: _handleScope(),
_context( Context::New( 0 , engine->_globalTemplate ) ) ,
_scope( _context ) ,
_global( _context->Global() ){
}
V8Scope::~V8Scope(){
}
Handle< Value > V8Scope::nativeCallback( const Arguments &args ) {
Local< External > f = External::Cast( *args.Callee()->Get( v8::String::New( "_native_function" ) ) );
NativeFunction function = ( NativeFunction )( f->Value() );
BSONObjBuilder b;
for( int i = 0; i < args.Length(); ++i ) {
stringstream ss;
ss << i;
v8ToMongoElement( b, v8::String::New( "foo" ), ss.str(), args[ i ] );
}
BSONObj ret;
try {
ret = function( b.done() );
} catch( const std::exception &e ) {
return v8::ThrowException(v8::String::New(e.what()));
} catch( ... ) {
return v8::ThrowException(v8::String::New("unknown exception"));
}
return mongoToV8Element( ret.firstElement() );
}
void V8Scope::setNumber( const char * field , double val ){
_global->Set( v8::String::New( field ) , v8::Number::New( val ) );
}
void V8Scope::setString( const char * field , const char * val ){
_global->Set( v8::String::New( field ) , v8::String::New( val ) );
}
void V8Scope::setBoolean( const char * field , bool val ){
_global->Set( v8::String::New( field ) , v8::Boolean::New( val ) );
}
double V8Scope::getNumber( const char *field ){
return _global->Get( v8::String::New( field ) )->ToNumber()->Value();
}
string V8Scope::getString( const char *field ){
return toSTLString( _global->Get( v8::String::New( field ) ) );
}
bool V8Scope::getBoolean( const char *field ){
return _global->Get( v8::String::New( field ) )->ToBoolean()->Value();
}
} // namespace mongo