Mercurial > hg > orthanc-stone
view Framework/Messages/IObservable.cpp @ 1132:58799b7317fa
merge
author | Alain Mazy <alain@mazy.be> |
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date | Wed, 06 Nov 2019 10:47:05 +0100 |
parents | 262a0244e9b2 |
children | e713f1a99861 2d8ab34c8c91 |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2019 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * 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/>. **/ #include "IObservable.h" #include <Core/Logging.h> #include <Core/OrthancException.h> #include <cassert> namespace OrthancStone { IObservable::~IObservable() { // delete all callables (this will also unregister them from the broker) for (Callables::const_iterator it = callables_.begin(); it != callables_.end(); ++it) { for (std::set<ICallable*>::const_iterator it2 = it->second.begin(); it2 != it->second.end(); ++it2) { delete *it2; } } // unregister the forwarders but don't delete them (they'll be // deleted by the observable they are observing as any other // callable) for (Forwarders::iterator it = forwarders_.begin(); it != forwarders_.end(); ++it) { IMessageForwarder* fw = *it; broker_.Unregister(dynamic_cast<IObserver&>(*fw)); } } void IObservable::RegisterObserverCallback(ICallable* callable) { if (callable == NULL) { throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); } const MessageIdentifier& id = callable->GetMessageIdentifier(); callables_[id].insert(callable); } void IObservable::Unregister(IObserver *observer) { LOG(TRACE) << "IObservable::Unregister for IObserver at addr: " << std::hex << observer << std::dec; // delete all callables from this observer for (Callables::iterator itCallableSet = callables_.begin(); itCallableSet != callables_.end(); ++itCallableSet) { for (std::set<ICallable*>::const_iterator itCallable = itCallableSet->second.begin(); itCallable != itCallableSet->second.end(); ) { if ((*itCallable)->GetObserver() == observer) { LOG(TRACE) << " ** IObservable::Unregister : deleting callable: " << std::hex << (*itCallable) << std::dec; delete *itCallable; itCallableSet->second.erase(itCallable++); } else ++itCallable; } } } void IObservable::EmitMessageInternal(const IObserver* receiver, const IMessage& message) { LOG(TRACE) << "IObservable::EmitMessageInternal receiver = " << std::hex << receiver << std::dec; Callables::const_iterator found = callables_.find(message.GetIdentifier()); if (found != callables_.end()) { for (std::set<ICallable*>::const_iterator it = found->second.begin(); it != found->second.end(); ++it) { assert(*it != NULL); const IObserver* observer = (*it)->GetObserver(); if (broker_.IsActive(*observer)) { if (receiver == NULL || // Are we broadcasting? observer == receiver) // Not broadcasting, but this is the receiver { (*it)->Apply(message); } } } } } void IObservable::BroadcastMessage(const IMessage& message) { EmitMessageInternal(NULL, message); } void IObservable::EmitMessage(const IObserver& observer, const IMessage& message) { LOG(TRACE) << "IObservable::EmitMessage observer = " << std::hex << &observer << std::dec; EmitMessageInternal(&observer, message); } void IObservable::RegisterForwarder(IMessageForwarder* forwarder) { if (forwarder == NULL) { throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); } forwarders_.insert(forwarder); } }