///PD_TRACE_DECLARE_FUNCTION ( SDB__MTHSLICEBUILD, "mthSliceBuild" )
INT32 mthSliceBuild( const CHAR *fieldName,
const bson::BSONElement &e,
_mthSAction *action,
bson::BSONObjBuilder &builder )
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB__MTHSLICEBUILD ) ;
SDB_ASSERT( NULL != action, "can not be null" ) ;
INT32 begin = 0 ;
INT32 limit = -1 ;
if ( e.eoo() )
{
goto done ;
}
else if ( Array == e.type() )
{
action->getSlicePair( begin, limit ) ;
_mthSliceIterator i( e.embeddedObject(),
begin, limit ) ;
BSONArrayBuilder sliceBuilder( builder.subarrayStart( fieldName ) ) ;
while ( i.more() )
{
sliceBuilder.append( i.next() ) ;
}
sliceBuilder.doneFast() ;
}
else
{
builder.append( e ) ;
}
done:
PD_TRACE_EXITRC( SDB__MTHSLICEBUILD, rc ) ;
return rc ;
}
///PD_TRACE_DECLARE_FUNCTION ( SDB__MTHELEMMATCHONEPARSER_PARSE, "_mthElemMatchOneParser::parse" )
INT32 _mthElemMatchOneParser::parse( const bson::BSONElement &e,
_mthSAction &action ) const
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB__MTHELEMMATCHONEPARSER_PARSE ) ;
if ( Object != e.type() )
{
PD_LOG( PDERROR, "$elemMatch(One) requires object value" ) ;
rc = SDB_INVALIDARG ;
goto error ;
}
rc = action.getMatcher().loadPattern( e.embeddedObject() ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "failed to load match pattern:%d", rc ) ;
goto error ;
}
action.setName( _name.c_str() ) ;
action.setAttribute( MTH_S_ATTR_PROJECTION ) ;
action.setFunc( &mthElemMatchOneBuild,
&mthElemMatchOneGet ) ;
done:
PD_TRACE_EXITRC( SDB__MTHELEMMATCHONEPARSER_PARSE, rc ) ;
return rc ;
error:
goto done ;
}
///PD_TRACE_DECLARE_FUNCTION ( SDB__MTHELEMMATCHGETN, "mthElemMatchGetN" )
static INT32 mthElemMatchGetN( const CHAR *fieldName,
const bson::BSONElement &in,
_mthSAction *action,
bson::BSONElement &out,
INT32 n )
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB__MTHELEMMATCHGETN ) ;
if ( Array == in.type() )
{
BSONObjBuilder objBuilder ;
BSONArrayBuilder arrayBuilder( objBuilder.subarrayStart( fieldName ) ) ;
_mthElemMatchIterator i( in.embeddedObject(),
&( action->getMatcher() ),
n ) ;
do
{
BSONElement next ;
rc = i.next( next ) ;
if ( SDB_OK == rc )
{
arrayBuilder.append( next ) ;
}
else if ( SDB_DMS_EOC == rc )
{
arrayBuilder.doneFast() ;
rc = SDB_OK ;
break ;
}
else
{
PD_LOG( PDERROR, "failed to get next element:%d", rc ) ;
goto error ;
}
} while ( TRUE ) ;
action->setObj( objBuilder.obj() ) ;
out = action->getObj().getField( fieldName ) ;
}
else
{
out = BSONElement() ;
}
done:
PD_TRACE_EXITRC( SDB__MTHELEMMATCHGETN, rc ) ;
return rc ;
error:
goto done ;
}
///PD_TRACE_DECLARE_FUNCTION ( SDB__MTHSLICEGET, "mthSliceGet" )
INT32 mthSliceGet( const CHAR *fieldName,
const bson::BSONElement &in,
_mthSAction *action,
bson::BSONElement &out )
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB__MTHSLICEGET ) ;
SDB_ASSERT( NULL != action, "can not be null" ) ;
INT32 begin = 0 ;
INT32 limit = -1 ;
if ( Array != in.type() )
{
out = in ;
goto done ;
}
else if ( Array == in.type() )
{
BSONObjBuilder subBuilder ;
action->getSlicePair( begin, limit ) ;
_mthSliceIterator i( in.embeddedObject(),
begin, limit ) ;
BSONArrayBuilder sliceBuilder( subBuilder.subarrayStart( fieldName ) ) ;
while ( i.more() )
{
sliceBuilder.append( i.next() ) ;
}
sliceBuilder.doneFast() ;
action->setObj( subBuilder.obj() ) ;
out = action->getObj().getField( fieldName ) ;
}
done:
PD_TRACE_EXITRC( SDB__MTHSLICEGET, rc ) ;
return rc ;
}
UINT32 _utilBSONHasherObsolete::hash( const bson::BSONElement &e )
{
UINT32 hashCode = 0 ;
HASH_COMBINE( hashCode, e.canonicalType() ) ;
switch( e.type() )
{
case EOO:
case Undefined:
case jstNULL:
case MaxKey:
case MinKey:
break ;
case Bool:
HASH_COMBINE( hashCode, e.boolean() ) ;
break ;
case Timestamp:
{
UINT64 v = e._opTime().asDate() ;
UINT32 h = hash( &v, sizeof( v ) ) ;
HASH_COMBINE( hashCode, h ) ;
}
break ;
case Date:
{
UINT64 v = e.date().millis ;
UINT32 h = hash( &v, sizeof( v ) ) ;
HASH_COMBINE( hashCode, h ) ;
}
break ;
case NumberDouble:
case NumberLong:
case NumberInt:
{
FLOAT64 dv = e.Number() ;
UINT64 uv = dv ;
UINT32 afp = ( dv - uv ) * 1000000 ;
UINT32 h1 = 0 ;
UINT32 h2 = 0 ;
h1 = hash( &uv, sizeof( uv ) ) ;
h2 = hash( &afp, sizeof( afp ) ) ;
HASH_COMBINE( hashCode, h1 ) ;
HASH_COMBINE( hashCode, h2 ) ;
break ;
}
case jstOID:
HASH_COMBINE( hashCode, hash( e.OID() ) ) ;
break ;
case Code:
case Symbol:
case String:
HASH_COMBINE( hashCode, hash( e.valuestrsafe(),
e.valuestrsize() - 1 ) ) ;
break ;
case Object:
case Array:
HASH_COMBINE( hashCode, hash( e.embeddedObject() ) ) ;
break ;
case DBRef:
case BinData:
HASH_COMBINE( hashCode, hash( e.value(),
e.valuesize() ) ) ;
break ;
case RegEx:
HASH_COMBINE( hashCode, hash( e.regex() ) ) ;
HASH_COMBINE( hashCode, hash( e.regexFlags() ) ) ;
break ;
case CodeWScope:
HASH_COMBINE( hashCode, hash( e.codeWScopeCode() ) ) ;
HASH_COMBINE( hashCode, hash( e.codeWScopeObject() ) ) ;
break ;
}
return hashCode ;
}
///PD_TRACE_DECLARE_FUNCTION ( SDB__MTHSUBSTRPARSER_PARSE, "_mthSubStrParser::parse" )
INT32 _mthSubStrParser::parse( const bson::BSONElement &e,
_mthSAction &action ) const
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB__MTHSUBSTRPARSER_PARSE ) ;
INT32 begin = 0 ;
INT32 limit = -1 ;
#if defined (_DEBUG)
if ( 0 != _name.compare( e.fieldName() ) )
{
PD_LOG( PDERROR, "field name[%s] is not valid",
e.fieldName() ) ;
rc = SDB_INVALIDARG ;
goto error ;
}
#endif
if ( e.isNumber() && 0 <= e.numberInt())
{
limit = e.numberInt() ;
}
else if ( e.isNumber() )
{
begin = e.numberInt() ;
}
else if ( Array == e.type() )
{
BSONObjIterator i( e.embeddedObject() ) ;
BSONElement ele ;
if ( !i.more() )
{
goto invalid_arg ;
}
ele = i.next() ;
if ( !ele.isNumber() )
{
goto invalid_arg ;
}
begin = ele.numberInt() ;
if ( !i.more() )
{
goto invalid_arg ;
}
ele = i.next() ;
if ( !ele.isNumber() )
{
goto invalid_arg ;
}
limit = ele.numberInt() ;
}
else
{
PD_LOG( PDERROR, "invalid element" ) ;
rc = SDB_INVALIDARG ;
goto error ;
}
action.setAttribute( MTH_S_ATTR_PROJECTION ) ;
action.setFunc( &mthSubStrBuild,
&mthSubStrGet ) ;
action.setName( _name.c_str() ) ;
action.setArg( BSON( "arg1" << begin << "arg2" << limit ) ) ;
done:
PD_TRACE_EXITRC( SDB__MTHSUBSTRPARSER_PARSE, rc ) ;
return rc ;
error:
goto done ;
invalid_arg:
PD_LOG( PDERROR, "invalid substr argument:%s",
e.toString( TRUE, TRUE ).c_str() ) ;
rc = SDB_INVALIDARG ;
goto error ;
}