mirror of https://github.com/Icinga/icinga2.git
302 lines
8.8 KiB
C++
302 lines
8.8 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "i2-cibsync.h"
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using namespace icinga;
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/**
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* Returns the name of the component.
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*
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* @returns The name.
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*/
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string CIBSyncComponent::GetName(void) const
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{
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return "cibsync";
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}
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/**
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* Starts the component.
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*/
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void CIBSyncComponent::Start(void)
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{
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m_SyncingConfig = false;
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m_Endpoint = boost::make_shared<VirtualEndpoint>();
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/* config objects */
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m_Endpoint->RegisterTopicHandler("config::FetchObjects",
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boost::bind(&CIBSyncComponent::FetchObjectsHandler, this, _2));
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ConfigObject::GetAllObjects()->OnObjectAdded.connect(boost::bind(&CIBSyncComponent::LocalObjectCommittedHandler, this, _2));
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ConfigObject::GetAllObjects()->OnObjectCommitted.connect(boost::bind(&CIBSyncComponent::LocalObjectCommittedHandler, this, _2));
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ConfigObject::GetAllObjects()->OnObjectRemoved.connect(boost::bind(&CIBSyncComponent::LocalObjectRemovedHandler, this, _2));
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m_Endpoint->RegisterPublication("config::ObjectCommitted");
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m_Endpoint->RegisterPublication("config::ObjectRemoved");
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EndpointManager::GetInstance()->OnNewEndpoint.connect(boost::bind(&CIBSyncComponent::NewEndpointHandler, this, _2));
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m_Endpoint->RegisterPublication("config::FetchObjects");
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m_Endpoint->RegisterTopicHandler("config::ObjectCommitted",
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boost::bind(&CIBSyncComponent::RemoteObjectCommittedHandler, this, _2, _3));
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m_Endpoint->RegisterTopicHandler("config::ObjectRemoved",
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boost::bind(&CIBSyncComponent::RemoteObjectRemovedHandler, this, _3));
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/* service status */
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m_Endpoint->RegisterTopicHandler("delegation::ServiceStatus",
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boost::bind(&CIBSyncComponent::ServiceStatusRequestHandler, _2, _3));
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EndpointManager::GetInstance()->RegisterEndpoint(m_Endpoint);
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}
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/**
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* Stops the component.
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*/
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void CIBSyncComponent::Stop(void)
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{
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EndpointManager::Ptr endpointManager = EndpointManager::GetInstance();
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if (endpointManager)
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endpointManager->UnregisterEndpoint(m_Endpoint);
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}
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void CIBSyncComponent::ServiceStatusRequestHandler(const Endpoint::Ptr& sender, const RequestMessage& request)
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{
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ServiceStatusMessage params;
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if (!request.GetParams(¶ms))
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return;
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CIB::OnServiceStatusUpdate(params);
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string svcname;
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if (!params.GetService(&svcname))
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return;
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Service service = Service::GetByName(svcname);
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time_t nextCheck;
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if (params.GetNextCheck(&nextCheck))
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service.SetNextCheck(nextCheck);
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ServiceState state;
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ServiceStateType stateType;
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if (params.GetState(&state) && params.GetStateType(&stateType)) {
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ServiceState old_state = service.GetState();
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ServiceStateType old_stateType = service.GetStateType();
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if (state != old_state) {
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time_t now;
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time(&now);
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service.SetLastStateChange(now);
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if (old_stateType != stateType)
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service.SetLastHardStateChange(now);
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}
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service.SetState(state);
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service.SetStateType(stateType);
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}
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long attempt;
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if (params.GetCurrentCheckAttempt(&attempt))
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service.SetCurrentCheckAttempt(attempt);
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CheckResult cr;
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if (params.GetCheckResult(&cr))
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service.SetLastCheckResult(cr);
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time_t now;
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time(&now);
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CIB::UpdateTaskStatistics(now, 1);
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}
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void CIBSyncComponent::NewEndpointHandler(const Endpoint::Ptr& endpoint)
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{
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/* no need to sync the config with local endpoints */
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if (endpoint->IsLocal())
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return;
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endpoint->OnSessionEstablished.connect(boost::bind(&CIBSyncComponent::SessionEstablishedHandler, this, _1));
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}
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void CIBSyncComponent::SessionEstablishedHandler(const Endpoint::Ptr& endpoint)
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{
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RequestMessage request;
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request.SetMethod("config::FetchObjects");
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EndpointManager::GetInstance()->SendUnicastMessage(m_Endpoint, endpoint, request);
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}
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RequestMessage CIBSyncComponent::MakeObjectMessage(const ConfigObject::Ptr& object, string method, bool includeProperties)
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{
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RequestMessage msg;
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msg.SetMethod(method);
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MessagePart params;
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msg.SetParams(params);
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params.Set("name", object->GetName());
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params.Set("type", object->GetType());
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if (includeProperties)
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params.Set("properties", object->GetProperties());
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return msg;
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}
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bool CIBSyncComponent::ShouldReplicateObject(const ConfigObject::Ptr& object)
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{
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return (!object->IsLocal());
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}
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void CIBSyncComponent::FetchObjectsHandler(const Endpoint::Ptr& sender)
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{
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ConfigObject::Set::Ptr allObjects = ConfigObject::GetAllObjects();
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BOOST_FOREACH(const ConfigObject::Ptr& object, allObjects) {
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if (!ShouldReplicateObject(object))
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continue;
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RequestMessage request = MakeObjectMessage(object, "config::ObjectCommitted", true);
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EndpointManager::GetInstance()->SendUnicastMessage(m_Endpoint, sender, request);
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}
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}
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void CIBSyncComponent::LocalObjectCommittedHandler(const ConfigObject::Ptr& object)
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{
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/* don't send messages when we're currently processing a remote update */
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if (m_SyncingConfig)
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return;
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if (!ShouldReplicateObject(object))
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return;
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EndpointManager::GetInstance()->SendMulticastMessage(m_Endpoint,
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MakeObjectMessage(object, "config::ObjectCommitted", true));
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}
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void CIBSyncComponent::LocalObjectRemovedHandler(const ConfigObject::Ptr& object)
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{
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/* don't send messages when we're currently processing a remote update */
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if (m_SyncingConfig)
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return;
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if (!ShouldReplicateObject(object))
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return;
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EndpointManager::GetInstance()->SendMulticastMessage(m_Endpoint,
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MakeObjectMessage(object, "config::ObjectRemoved", false));
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}
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void CIBSyncComponent::RemoteObjectCommittedHandler(const Endpoint::Ptr& sender, const RequestMessage& request)
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{
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MessagePart params;
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if (!request.GetParams(¶ms))
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return;
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string name;
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if (!params.Get("name", &name))
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return;
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string type;
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if (!params.Get("type", &type))
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return;
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MessagePart properties;
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if (!params.Get("properties", &properties))
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return;
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ConfigObject::Ptr object = ConfigObject::GetObject(type, name);
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if (!object) {
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object = boost::make_shared<ConfigObject>(properties.GetDictionary());
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if (object->GetSource() == EndpointManager::GetInstance()->GetIdentity()) {
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/* the peer sent us an object that was originally created by us -
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* however if was deleted locally so we have to tell the peer to destroy
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* its copy of the object. */
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EndpointManager::GetInstance()->SendMulticastMessage(m_Endpoint,
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MakeObjectMessage(object, "config::ObjectRemoved", false));
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return;
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}
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} else {
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ConfigObject::Ptr remoteObject = boost::make_shared<ConfigObject>(properties.GetDictionary());
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if (object->GetCommitTimestamp() >= remoteObject->GetCommitTimestamp())
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return;
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object->SetProperties(properties.GetDictionary());
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}
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if (object->IsLocal())
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throw invalid_argument("Replicated remote object is marked as local.");
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if (object->GetSource().empty())
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object->SetSource(sender->GetIdentity());
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try {
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/* TODO: only ignore updates for _this_ object rather than all objects
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* this might be relevant if the commit handler for this object
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* creates other objects. */
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m_SyncingConfig = true;
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object->Commit();
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m_SyncingConfig = false;
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} catch (const exception&) {
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m_SyncingConfig = false;
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throw;
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}
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}
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void CIBSyncComponent::RemoteObjectRemovedHandler(const RequestMessage& request)
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{
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MessagePart params;
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if (!request.GetParams(¶ms))
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return;
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string name;
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if (!params.Get("name", &name))
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return;
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string type;
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if (!params.Get("type", &type))
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return;
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ConfigObject::Ptr object = ConfigObject::GetObject(type, name);
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if (!object)
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return;
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if (!object->IsLocal()) {
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try {
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m_SyncingConfig = true;
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object->Unregister();
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m_SyncingConfig = false;
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} catch (const exception&) {
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m_SyncingConfig = false;
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throw;
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}
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}
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}
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EXPORT_COMPONENT(cibsync, CIBSyncComponent);
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