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/**
* Copyright (C) 2017 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/s/catalog/type_shard_collection.h"
#include "mongo/base/status_with.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/s/catalog/type_collection.h"
#include "mongo/util/assert_util.h"
namespace mongo {
const std::string ShardCollectionType::ConfigNS = "config.collections";
const BSONField<std::string> ShardCollectionType::uuid("_id");
const BSONField<std::string> ShardCollectionType::ns("ns");
const BSONField<BSONObj> ShardCollectionType::keyPattern("key");
const BSONField<OID> ShardCollectionType::lastConsistentCollectionVersionEpoch(
"lastConsistentCollectionVersionEpoch");
const BSONField<Date_t> ShardCollectionType::lastConsistentCollectionVersion(
"lastConsistentCollectionVersion");
ShardCollectionType::ShardCollectionType(const CollectionType& collectionType)
: ShardCollectionType(
collectionType.getNs(), collectionType.getNs(), collectionType.getKeyPattern()) {}
ShardCollectionType::ShardCollectionType(const NamespaceString& uuid,
const NamespaceString& ns,
const KeyPattern& keyPattern)
: _uuid(uuid), _ns(ns), _keyPattern(keyPattern.toBSON()) {}
StatusWith<ShardCollectionType> ShardCollectionType::fromBSON(const BSONObj& source) {
NamespaceString uuidNss;
{
std::string uuidString;
Status status = bsonExtractStringField(source, uuid.name(), &uuidString);
if (!status.isOK()) {
return status;
}
uuidNss = NamespaceString{uuidString};
}
NamespaceString nsNss;
{
std::string nsString;
Status status = bsonExtractStringField(source, ns.name(), &nsString);
if (!status.isOK()) {
return status;
}
nsNss = NamespaceString{nsString};
}
BSONElement collKeyPattern;
Status status = bsonExtractTypedField(source, keyPattern.name(), Object, &collKeyPattern);
if (!status.isOK()) {
return status;
}
BSONObj obj = collKeyPattern.Obj();
if (obj.isEmpty()) {
return Status(ErrorCodes::ShardKeyNotFound,
str::stream() << "Empty shard key. Failed to parse: " << source.toString());
}
KeyPattern pattern(obj.getOwned());
ShardCollectionType shardCollectionType(uuidNss, nsNss, pattern);
{
auto statusWithChunkVersion = ChunkVersion::parseFromBSONWithFieldForCommands(
source, lastConsistentCollectionVersion.name());
if (statusWithChunkVersion.isOK()) {
ChunkVersion collVersion = std::move(statusWithChunkVersion.getValue());
shardCollectionType.setLastConsistentCollectionVersion(std::move(collVersion));
} else if (statusWithChunkVersion == ErrorCodes::NoSuchKey) {
// May not be set yet, which is okay.
} else {
return statusWithChunkVersion.getStatus();
}
}
return shardCollectionType;
}
bool ShardCollectionType::isLastConsistentCollectionVersionSet() const {
return _lastConsistentCollectionVersion.is_initialized();
}
BSONObj ShardCollectionType::toBSON() const {
BSONObjBuilder builder;
builder.append(uuid.name(), _uuid.toString());
builder.append(ns.name(), _ns.toString());
builder.append(keyPattern.name(), _keyPattern.toBSON());
if (_lastConsistentCollectionVersion) {
_lastConsistentCollectionVersion->appendWithFieldForCommands(
&builder, lastConsistentCollectionVersion.name());
}
return builder.obj();
}
std::string ShardCollectionType::toString() const {
return toBSON().toString();
}
void ShardCollectionType::setUUID(const NamespaceString& uuid) {
invariant(uuid.isValid());
_uuid = uuid;
}
void ShardCollectionType::setNs(const NamespaceString& ns) {
invariant(ns.isValid());
_ns = ns;
}
void ShardCollectionType::setKeyPattern(const KeyPattern& keyPattern) {
invariant(!keyPattern.toBSON().isEmpty());
_keyPattern = keyPattern;
}
void ShardCollectionType::setLastConsistentCollectionVersion(
const ChunkVersion& lastConsistentCollectionVersion) {
_lastConsistentCollectionVersion = lastConsistentCollectionVersion;
}
const OID ShardCollectionType::getLastConsistentCollectionVersionEpoch() const {
invariant(_lastConsistentCollectionVersion);
return _lastConsistentCollectionVersion->epoch();
}
} // namespace mongo
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