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/*
* Copyright (c) 2012 Mateusz Piękos
* Licensed under the simplified BSD license.
* See Documentation/Licenses/BSD-simplified.txt for more information.
*/
/*
* Copyright (c) 2016 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#include <Swiften/Whiteboard/WhiteboardClient.h>
#include <iostream>
#include <memory>
#include <Swiften/Whiteboard/WhiteboardTransformer.h>
namespace Swift {
WhiteboardOperation::ref WhiteboardClient::handleLocalOperationReceived(WhiteboardOperation::ref operation) {
localOperations_.push_back(operation);
WhiteboardOperation::ref op;
WhiteboardInsertOperation::ref insertOp = std::dynamic_pointer_cast<WhiteboardInsertOperation>(operation);
if (insertOp) {
op = std::make_shared<WhiteboardInsertOperation>(*insertOp);
}
WhiteboardUpdateOperation::ref updateOp = std::dynamic_pointer_cast<WhiteboardUpdateOperation>(operation);
if (updateOp) {
op = std::make_shared<WhiteboardUpdateOperation>(*updateOp);
}
WhiteboardDeleteOperation::ref deleteOp = std::dynamic_pointer_cast<WhiteboardDeleteOperation>(operation);
if (deleteOp) {
op = std::make_shared<WhiteboardDeleteOperation>(*deleteOp);
}
if (!bridge_.empty()) {
op->setParentID(bridge_.back()->getID());
}
bridge_.push_back(op);
if (lastSentOperationID_.empty())
{
WhiteboardInsertOperation::ref insertOp = std::dynamic_pointer_cast<WhiteboardInsertOperation>(operation);
if (insertOp) {
op = std::make_shared<WhiteboardInsertOperation>(*insertOp);
}
WhiteboardUpdateOperation::ref updateOp = std::dynamic_pointer_cast<WhiteboardUpdateOperation>(operation);
if (updateOp) {
op = std::make_shared<WhiteboardUpdateOperation>(*updateOp);
}
WhiteboardDeleteOperation::ref deleteOp = std::dynamic_pointer_cast<WhiteboardDeleteOperation>(operation);
if (deleteOp) {
op = std::make_shared<WhiteboardDeleteOperation>(*deleteOp);
}
if (!serverOperations_.empty()) {
op->setParentID(serverOperations_.back()->getID());
}
lastSentOperationID_ = operation->getID();
return op;
} else {
return WhiteboardOperation::ref();
}
}
WhiteboardClient::Result WhiteboardClient::handleServerOperationReceived(WhiteboardOperation::ref operation) {
serverOperations_.push_back(operation);
Result result;
// if (localOperations_.empty()) {// || localOperations_.back()->getID() == operation->getParentID()) {
//Situation where client and server are in sync
if (localOperations_.size() == serverOperations_.size()-1) {
localOperations_.push_back(operation);
// clientOp = operation;
result.client = operation;
} else if (lastSentOperationID_ == operation->getID()) {
//Client received confirmation about own operation and it sends next operation to server
if (!bridge_.empty() && lastSentOperationID_ == bridge_.front()->getID()) {
bridge_.erase(bridge_.begin());
}
if (!bridge_.empty() && (bridge_.front())->getParentID() == lastSentOperationID_) {
lastSentOperationID_ = (bridge_.front())->getID();
result.server = bridge_.front();
}
if (!result.server) {
lastSentOperationID_.clear();
}
} else {
std::list<WhiteboardOperation::ref>::iterator it = bridge_.begin();
std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> opPair;
WhiteboardOperation::ref temp;
opPair = WhiteboardTransformer::transform(*it, operation);
temp = opPair.first;
*it = opPair.second;
std::string previousID = (*it)->getID();
++it;
for (; it != bridge_.end(); ++it) {
opPair = WhiteboardTransformer::transform(*it, temp);
temp = opPair.first;
*it = opPair.second;
(*it)->setParentID(previousID);
previousID = (*it)->getID();
}
temp->setParentID(localOperations_.back()->getID());
localOperations_.push_back(temp);
result.client = temp;
}
return result;
}
void WhiteboardClient::print() {
std::list<WhiteboardOperation::ref>::iterator it;
std::cout << "Client" << std::endl;
for(it = localOperations_.begin(); it != localOperations_.end(); ++it) {
std::cout << (*it)->getID() << " " << (*it)->getPos() << std::endl;
}
std::cout << "Server" << std::endl;
for(it = serverOperations_.begin(); it != serverOperations_.end(); ++it) {
std::cout << (*it)->getID() << " " << (*it)->getPos() << std::endl;
}
}
}
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Swift