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/* Copyright 2013 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/platform/basic.h"
#include "mongo/bson/mutable/element.h"
#include "mongo/bson/mutable/algorithm.h"
#include "mongo/bson/mutable/document.h"
namespace mongo {
namespace mutablebson {
// Many of the methods of Element are actually implemented in document.cpp, since they need
// access to the firewalled implementation of Document.
Status Element::pushFront(Element e) {
return addChild(e, true);
}
Status Element::pushBack(Element e) {
return addChild(e, false);
}
Status Element::popFront() {
Element left = leftChild();
if (!left.ok())
return Status(ErrorCodes::EmptyArrayOperation, "popFront on empty");
return left.remove();
}
Status Element::popBack() {
Element right = rightChild();
if (!right.ok())
return Status(ErrorCodes::EmptyArrayOperation, "popBack on empty");
return right.remove();
}
Status Element::appendDouble(StringData fieldName, double value) {
return pushBack(getDocument().makeElementDouble(fieldName, value));
}
Status Element::appendString(StringData fieldName, StringData value) {
return pushBack(getDocument().makeElementString(fieldName, value));
}
Status Element::appendObject(StringData fieldName, const BSONObj& value) {
return pushBack(getDocument().makeElementObject(fieldName, value));
}
Status Element::appendArray(StringData fieldName, const BSONObj& value) {
return pushBack(getDocument().makeElementArray(fieldName, value));
}
Status Element::appendBinary(StringData fieldName,
uint32_t len,
mongo::BinDataType binType,
const void* data) {
return pushBack(getDocument().makeElementBinary(fieldName, len, binType, data));
}
Status Element::appendUndefined(StringData fieldName) {
return pushBack(getDocument().makeElementUndefined(fieldName));
}
Status Element::appendOID(StringData fieldName, const OID value) {
return pushBack(getDocument().makeElementOID(fieldName, value));
}
Status Element::appendBool(StringData fieldName, bool value) {
return pushBack(getDocument().makeElementBool(fieldName, value));
}
Status Element::appendDate(StringData fieldName, Date_t value) {
return pushBack(getDocument().makeElementDate(fieldName, value));
}
Status Element::appendNull(StringData fieldName) {
return pushBack(getDocument().makeElementNull(fieldName));
}
Status Element::appendRegex(StringData fieldName, StringData re, StringData flags) {
return pushBack(getDocument().makeElementRegex(fieldName, re, flags));
}
Status Element::appendDBRef(StringData fieldName, StringData ns, const OID oid) {
return pushBack(getDocument().makeElementDBRef(fieldName, ns, oid));
}
Status Element::appendCode(StringData fieldName, StringData value) {
return pushBack(getDocument().makeElementCode(fieldName, value));
}
Status Element::appendSymbol(StringData fieldName, StringData value) {
return pushBack(getDocument().makeElementSymbol(fieldName, value));
}
Status Element::appendCodeWithScope(StringData fieldName, StringData code, const BSONObj& scope) {
return pushBack(getDocument().makeElementCodeWithScope(fieldName, code, scope));
}
Status Element::appendInt(StringData fieldName, int32_t value) {
return pushBack(getDocument().makeElementInt(fieldName, value));
}
Status Element::appendTimestamp(StringData fieldName, Timestamp value) {
return pushBack(getDocument().makeElementTimestamp(fieldName, value));
}
Status Element::appendLong(StringData fieldName, int64_t value) {
return pushBack(getDocument().makeElementLong(fieldName, value));
}
Status Element::appendMinKey(StringData fieldName) {
return pushBack(getDocument().makeElementMinKey(fieldName));
}
Status Element::appendMaxKey(StringData fieldName) {
return pushBack(getDocument().makeElementMaxKey(fieldName));
}
Status Element::appendElement(const BSONElement& value) {
return pushBack(getDocument().makeElement(value));
}
Status Element::appendSafeNum(StringData fieldName, SafeNum value) {
return pushBack(getDocument().makeElementSafeNum(fieldName, value));
}
std::string Element::toString() const {
if (!ok())
return "INVALID-MUTABLE-ELEMENT";
if (hasValue())
return getValue().toString();
const BSONType type = getType();
// The only types that sometimes don't have a value are Object and Array nodes.
dassert((type == mongo::Object) || (type == mongo::Array));
if (type == mongo::Object) {
BSONObjBuilder builder;
writeTo(&builder);
BSONObj obj = builder.obj();
return obj.firstElement().toString();
} else {
// It must be an array.
BSONObjBuilder builder;
BSONArrayBuilder arrayBuilder(builder.subarrayStart(getFieldName()));
writeArrayTo(&arrayBuilder);
arrayBuilder.done();
BSONObj obj = builder.obj();
return obj.firstElement().toString();
}
}
} // namespace mutablebson
} // namespace mongo
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