icinga2/lib/icinga/service-notification.cpp

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/******************************************************************************
* Icinga 2 *
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* Copyright (C) 2012-2013 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
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#include "icinga/service.h"
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#include "base/dynamictype.h"
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#include "base/objectlock.h"
#include "base/logger_fwd.h"
#include "base/timer.h"
#include "base/utility.h"
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#include "config/configitembuilder.h"
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#include <boost/tuple/tuple.hpp>
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#include <boost/smart_ptr/make_shared.hpp>
#include <boost/foreach.hpp>
#include <boost/exception/diagnostic_information.hpp>
using namespace icinga;
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boost::signals2::signal<void (const Service::Ptr&, const std::set<User::Ptr>&, const NotificationType&, const Dictionary::Ptr&, const String&, const String&)> Service::OnNotificationSentToAllUsers;
boost::signals2::signal<void (const Service::Ptr&, const User::Ptr&, const NotificationType&, const Dictionary::Ptr&, const String&, const String&)> Service::OnNotificationSentToUser;
Dictionary::Ptr Service::GetNotificationDescriptions(void) const
{
return m_NotificationDescriptions;
}
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void Service::ResetNotificationNumbers(void)
{
BOOST_FOREACH(const Notification::Ptr& notification, GetNotifications()) {
ObjectLock olock(notification);
notification->ResetNotificationNumber();
}
}
void Service::SendNotifications(NotificationType type, const Dictionary::Ptr& cr, const String& author, const String& text)
{
bool force = GetForceNextNotification();
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if (!GetEnableNotifications()) {
if (!force) {
Log(LogInformation, "icinga", "Notifications are disabled for service '" + GetName() + "'.");
return;
}
SetForceNextNotification(false);
}
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Log(LogInformation, "icinga", "Sending notifications for service '" + GetName() + "'");
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std::set<Notification::Ptr> notifications = GetNotifications();
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if (notifications.empty())
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Log(LogInformation, "icinga", "Service '" + GetName() + "' does not have any notifications.");
BOOST_FOREACH(const Notification::Ptr& notification, notifications) {
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try {
notification->BeginExecuteNotification(type, cr, force, author, text);
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} catch (const std::exception& ex) {
std::ostringstream msgbuf;
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msgbuf << "Exception occured during notification for service '"
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<< GetName() << "': " << boost::diagnostic_information(ex);
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String message = msgbuf.str();
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Log(LogWarning, "icinga", message);
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}
}
}
std::set<Notification::Ptr> Service::GetNotifications(void) const
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{
return m_Notifications;
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}
void Service::AddNotification(const Notification::Ptr& notification)
{
m_Notifications.insert(notification);
}
void Service::RemoveNotification(const Notification::Ptr& notification)
{
m_Notifications.erase(notification);
}
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void Service::UpdateSlaveNotifications(void)
{
ConfigItem::Ptr item = ConfigItem::GetObject("Service", GetName());
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/* Don't create slave notifications unless we own this object */
if (!item)
return;
/* Service notification descs */
Dictionary::Ptr descs = GetNotificationDescriptions();
if (!descs)
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return;
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ObjectLock olock(descs);
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String nfcname;
Value nfcdesc;
BOOST_FOREACH(boost::tie(nfcname, nfcdesc), descs) {
std::ostringstream namebuf;
namebuf << GetName() << ":" << nfcname;
String name = namebuf.str();
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std::vector<String> path;
path.push_back("notifications");
path.push_back(nfcname);
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DebugInfo di;
item->GetLinkedExpressionList()->FindDebugInfoPath(path, di);
if (di.Path.IsEmpty())
di = item->GetDebugInfo();
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ConfigItemBuilder::Ptr builder = boost::make_shared<ConfigItemBuilder>(di);
builder->SetType("Notification");
builder->SetName(name);
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builder->AddExpression("host", OperatorSet, GetHost()->GetName());
builder->AddExpression("service", OperatorSet, GetShortName());
if (!nfcdesc.IsObjectType<Dictionary>())
BOOST_THROW_EXCEPTION(std::invalid_argument("Notification description must be a dictionary."));
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Dictionary::Ptr notification = nfcdesc;
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Array::Ptr templates = notification->Get("templates");
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if (templates) {
ObjectLock tlock(templates);
BOOST_FOREACH(const Value& tmpl, templates) {
builder->AddParent(tmpl);
}
}
/* Clone attributes from the notification expression list. */
ExpressionList::Ptr nfc_exprl = boost::make_shared<ExpressionList>();
item->GetLinkedExpressionList()->ExtractPath(path, nfc_exprl);
std::vector<String> dpath;
dpath.push_back("templates");
nfc_exprl->ErasePath(dpath);
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builder->AddExpressionList(nfc_exprl);
ConfigItem::Ptr notificationItem = builder->Compile();
notificationItem->Register();
DynamicObject::Ptr dobj = notificationItem->Commit();
dobj->OnConfigLoaded();
}
}
bool Service::GetEnableNotifications(void) const
{
if (m_EnableNotifications.IsEmpty())
return true;
else
return m_EnableNotifications;
}
void Service::SetEnableNotifications(bool enabled, const String& authority)
{
m_EnableNotifications = enabled;
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Utility::QueueAsyncCallback(boost::bind(boost::ref(OnEnableNotificationsChanged), GetSelf(), enabled, authority));
}
bool Service::GetForceNextNotification(void) const
{
if (m_ForceNextNotification.IsEmpty())
return false;
return static_cast<bool>(m_ForceNextNotification);
}
void Service::SetForceNextNotification(bool forced, const String& authority)
{
m_ForceNextNotification = forced ? 1 : 0;
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Utility::QueueAsyncCallback(boost::bind(boost::ref(OnForceNextNotificationChanged), GetSelf(), forced, authority));
}