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/* Copyright 2012 10gen Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "mongo/dbtests/mock/mock_remote_db_server.h"
#include "mongo/dbtests/mock/mock_dbclient_connection.h"
#include "mongo/util/mongoutils/str.h"
#include "mongo/util/net/sock.h"
#include "mongo/util/time_support.h"
using std::string;
using std::vector;
namespace mongo {
MockRemoteDBServer::CircularBSONIterator::CircularBSONIterator(
const vector<BSONObj>& replyVector) {
for (std::vector<mongo::BSONObj>::const_iterator iter = replyVector.begin();
iter != replyVector.end(); ++iter) {
_replyObjs.push_back(iter->copy());
}
_iter = _replyObjs.begin();
}
BSONObj MockRemoteDBServer::CircularBSONIterator::next() {
verify(_iter != _replyObjs.end());
BSONObj reply = _iter->copy();
++_iter;
if (_iter == _replyObjs.end()) {
_iter = _replyObjs.begin();
}
return reply;
}
MockRemoteDBServer::MockRemoteDBServer(const string& hostAndPort):
_isRunning(true),
_hostAndPort(hostAndPort),
_delayMilliSec(0),
_cmdCount(0),
_queryCount(0),
_instanceID(0) {
insert(IdentityNS, BSON(HostField(hostAndPort)), 0);
}
MockRemoteDBServer::~MockRemoteDBServer() {
}
void MockRemoteDBServer::setDelay(long long milliSec) {
scoped_spinlock sLock(_lock);
_delayMilliSec = milliSec;
}
void MockRemoteDBServer::shutdown() {
scoped_spinlock sLock(_lock);
_isRunning = false;
}
void MockRemoteDBServer::reboot() {
scoped_spinlock sLock(_lock);
_isRunning = true;
_instanceID++;
}
MockRemoteDBServer::InstanceID MockRemoteDBServer::getInstanceID() const {
scoped_spinlock sLock(_lock);
return _instanceID;
}
bool MockRemoteDBServer::isRunning() const {
scoped_spinlock sLock(_lock);
return _isRunning;
}
void MockRemoteDBServer::setCommandReply(const string& cmdName,
const mongo::BSONObj& replyObj) {
vector<BSONObj> replySequence;
replySequence.push_back(replyObj);
setCommandReply(cmdName, replySequence);
}
void MockRemoteDBServer::setCommandReply(const string& cmdName,
const vector<BSONObj>& replySequence) {
scoped_spinlock sLock(_lock);
_cmdMap[cmdName].reset(new CircularBSONIterator(replySequence));
}
void MockRemoteDBServer::insert(const string &ns, BSONObj obj, int flags) {
scoped_spinlock sLock(_lock);
vector<BSONObj>& mockCollection = _dataMgr[ns];
mockCollection.push_back(obj.copy());
}
void MockRemoteDBServer::remove(const string& ns, Query query, int flags) {
scoped_spinlock sLock(_lock);
if (_dataMgr.count(ns) == 0) {
return;
}
_dataMgr.erase(ns);
}
bool MockRemoteDBServer::runCommand(MockRemoteDBServer::InstanceID id,
const string& dbname,
const BSONObj& cmdObj,
BSONObj &info,
int options) {
checkIfUp(id);
// Get the name of the command - copied from _runCommands @ db/dbcommands.cpp
BSONObj innerCmdObj;
{
mongo::BSONElement e = cmdObj.firstElement();
if (e.type() == mongo::Object && (e.fieldName()[0] == '$'
? mongo::str::equals("query", e.fieldName()+1) :
mongo::str::equals("query", e.fieldName()))) {
innerCmdObj = e.embeddedObject();
}
else {
innerCmdObj = cmdObj;
}
}
string cmdName = innerCmdObj.firstElement().fieldName();
uassert(16430, str::stream() << "no reply for cmd: " << cmdName,
_cmdMap.count(cmdName) == 1);
{
scoped_spinlock sLock(_lock);
info = _cmdMap[cmdName]->next();
}
if (_delayMilliSec > 0) {
mongo::sleepmillis(_delayMilliSec);
}
checkIfUp(id);
scoped_spinlock sLock(_lock);
_cmdCount++;
return info["ok"].trueValue();
}
mongo::BSONArray MockRemoteDBServer::query(
MockRemoteDBServer::InstanceID id,
const string& ns,
mongo::Query query,
int nToReturn,
int nToSkip,
const BSONObj* fieldsToReturn,
int queryOptions,
int batchSize) {
checkIfUp(id);
if (_delayMilliSec > 0) {
mongo::sleepmillis(_delayMilliSec);
}
checkIfUp(id);
scoped_spinlock sLock(_lock);
_queryCount++;
const vector<BSONObj>& coll = _dataMgr[ns];
BSONArrayBuilder result;
for (vector<BSONObj>::const_iterator iter = coll.begin(); iter != coll.end(); ++ iter) {
result.append(iter->copy());
}
return BSONArray(result.obj());
}
mongo::ConnectionString::ConnectionType MockRemoteDBServer::type() const {
return mongo::ConnectionString::CUSTOM;
}
size_t MockRemoteDBServer::getCmdCount() const {
scoped_spinlock sLock(_lock);
return _cmdCount;
}
size_t MockRemoteDBServer::getQueryCount() const {
scoped_spinlock sLock(_lock);
return _queryCount;
}
void MockRemoteDBServer::clearCounters() {
scoped_spinlock sLock(_lock);
_cmdCount = 0;
_queryCount = 0;
}
string MockRemoteDBServer::getServerAddress() const {
return _hostAndPort;
}
string MockRemoteDBServer::toString() {
return _hostAndPort;
}
void MockRemoteDBServer::checkIfUp(InstanceID id) const {
scoped_spinlock sLock(_lock);
if (!_isRunning || id < _instanceID) {
throw mongo::SocketException(mongo::SocketException::CLOSED, _hostAndPort);
}
}
}
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