std::vector<MongoCollectionInfo> MongoClient::runCollStatsCommand(const std::vector<std::string> &namespaces)
{
std::vector<MongoCollectionInfo> infos;
for (std::vector<std::string>::const_iterator it = namespaces.begin(); it!=namespaces.end(); ++it) {
MongoCollectionInfo info = runCollStatsCommand(*it);
if (info.ns().isValid()){
infos.push_back(info);
}
}
return infos;
}
std::vector<EnsureIndexInfo> MongoClient::getIndexes(const MongoCollectionInfo &collection) const
{
std::vector<EnsureIndexInfo> result;
std::string indexNamespace = mongo::Namespace(collection.ns().toString()).getSisterNS("system.indexes");
std::auto_ptr<mongo::DBClientCursor> cursor(_dbclient->
query( indexNamespace.c_str(), BSON("ns" << collection.ns().toString()), 0, 0, 0, mongo::QueryOption_SlaveOk, 0)
);
while (cursor->more()) {
mongo::BSONObj bsonObj = cursor->next();
result.push_back(makeEnsureIndexInfoFromBsonObj(collection,bsonObj));
}
return result;
}
void MongoClient::renameIndexFromCollection(const MongoCollectionInfo &collection, const std::string &oldIndexName, const std::string &newIndexName) const
{
// This is simply an example of how to perform modifications of
// BSON objects. Because BSONObj is immutable, you need to create
// copy of this object, using BSONObjBuilder and BSONObjIterator.
//
// But we need to do not just simple renaming of Index name, we
// also should allow our users to fully modify Index
// (i.e. change name, keys, unique flag, sparse flag etc.)
//
// This should be done using the same dialog as for "Add Index".
MongoNamespace ns(collection.ns().databaseName(), "system.indexes");
std::string systemIndexesNs = ns.toString();
// Building this JSON: { "name" : "oldIndexName" }
mongo::BSONObj query(mongo::BSONObjBuilder()
.append("name", oldIndexName)
.obj());
// Searching for index with "oldIndexName"
// with this query: db.system.indexes.find({ name : "oldIndexName"}
mongo::BSONObj indexBson = _dbclient->findOne(systemIndexesNs, mongo::Query(query));
if (indexBson.isEmpty())
return;
// Here we are building copy of "indexBson" object and
// changing "name" field's value from "oldIndexText" to "newIndexText":
mongo::BSONObjBuilder builder;
mongo::BSONObjIterator i(indexBson);
while (i.more()) {
mongo::BSONElement element = i.next();
if (mongo::StringData(element.fieldName()).compare("name") == 0) {
builder.append("name", newIndexName);
continue;
}
builder.append(element);
}
std::string collectionNs = collection.ns().toString();
_dbclient->dropIndex(collectionNs, oldIndexName);
_dbclient->insert(systemIndexesNs, builder.obj());
}
std::vector<EnsureIndexInfo> MongoClient::getIndexes(const MongoCollectionInfo &collection) const
{
std::vector<EnsureIndexInfo> result;
std::auto_ptr<mongo::DBClientCursor> cursor(_dbclient->getIndexes(collection.ns().toString()));
while (cursor->more()) {
mongo::BSONObj bsonObj = cursor->next();
result.push_back(makeEnsureIndexInfoFromBsonObj(collection,bsonObj));
}
return result;
}
std::vector<EnsureIndexInfo> MongoClient::getIndexes(const MongoCollectionInfo &collection) const
{
std::vector<EnsureIndexInfo> result;
std::list<mongo::BSONObj> indexes = _dbclient->getIndexSpecs(collection.ns().toString());
// std::unique_ptr<mongo::DBClientCursor> cursor(_dbclient->getIndexSpecs(collection.ns().toString()));
for (std::list<mongo::BSONObj>::iterator it = indexes.begin(); it != indexes.end(); ++it) {
mongo::BSONObj bsonObj = *it;
result.push_back(makeEnsureIndexInfoFromBsonObj(collection, bsonObj));
}
return result;
}
void MongoClient::dropIndexFromCollection(const MongoCollectionInfo &collection, const std::string &indexName) const
{
_dbclient->dropIndex(collection.ns().toString(), indexName);
}
