icinga2/lib/icinga/perfdatawriter.cpp

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/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 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/perfdatawriter.h"
#include "icinga/service.h"
#include "icinga/macroprocessor.h"
#include "icinga/icingaapplication.h"
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#include "base/dynamictype.h"
#include "base/objectlock.h"
#include "base/logger_fwd.h"
#include "base/convert.h"
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#include "base/utility.h"
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#include "base/application.h"
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#include <boost/smart_ptr/make_shared.hpp>
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using namespace icinga;
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REGISTER_TYPE(PerfdataWriter);
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PerfdataWriter::PerfdataWriter(void)
: m_RotationInterval(30)
{ }
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void PerfdataWriter::Start(void)
{
DynamicObject::Start();
Service::OnNewCheckResult.connect(bind(&PerfdataWriter::CheckResultHandler, this, _1, _2));
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m_RotationTimer = boost::make_shared<Timer>();
m_RotationTimer->OnTimerExpired.connect(boost::bind(&PerfdataWriter::RotationTimerHandler, this));
m_RotationTimer->SetInterval(GetRotationInterval());
m_RotationTimer->Start();
RotateFile();
}
String PerfdataWriter::GetPerfdataPath(void) const
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{
if (!m_PerfdataPath.IsEmpty())
return m_PerfdataPath;
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else
return Application::GetLocalStateDir() + "/cache/icinga2/perfdata/perfdata";
}
String PerfdataWriter::GetFormatTemplate(void) const
{
if (!m_FormatTemplate.IsEmpty()) {
return m_FormatTemplate;
} else {
return "DATATYPE::SERVICEPERFDATA\t"
"TIMET::$TIMET$\t"
"HOSTNAME::$HOSTNAME$\t"
"SERVICEDESC::$SERVICEDESC$\t"
"SERVICEPERFDATA::$SERVICEPERFDATA$\t"
"SERVICECHECKCOMMAND::$SERVICECHECKCOMMAND$\t"
"HOSTSTATE::$HOSTSTATE$\t"
"HOSTSTATETYPE::$HOSTSTATETYPE$\t"
"SERVICESTATE::$SERVICESTATE$\t"
"SERVICESTATETYPE::$SERVICESTATETYPE$";
}
}
double PerfdataWriter::GetRotationInterval(void) const
{
return m_RotationInterval;
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}
void PerfdataWriter::CheckResultHandler(const Service::Ptr& service, const Dictionary::Ptr& cr)
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{
Host::Ptr host = service->GetHost();
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if (!host)
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return;
std::vector<MacroResolver::Ptr> resolvers;
resolvers.push_back(service);
resolvers.push_back(host);
resolvers.push_back(IcingaApplication::GetInstance());
String line = MacroProcessor::ResolveMacros(GetFormatTemplate(), resolvers, cr);
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ObjectLock olock(this);
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if (!m_OutputFile.good())
return;
m_OutputFile << line << "\n";
}
void PerfdataWriter::RotateFile(void)
{
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ObjectLock olock(this);
String tempFile = GetPerfdataPath();
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if (m_OutputFile.good()) {
m_OutputFile.close();
String finalFile = GetPerfdataPath() + "." + Convert::ToString((long)Utility::GetTime());
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(void) rename(tempFile.CStr(), finalFile.CStr());
}
m_OutputFile.open(tempFile.CStr());
if (!m_OutputFile.good())
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Log(LogWarning, "icinga", "Could not open perfdata file '" + tempFile + "' for writing. Perfdata will be lost.");
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}
void PerfdataWriter::RotationTimerHandler(void)
{
RotateFile();
}
void PerfdataWriter::InternalSerialize(const Dictionary::Ptr& bag, int attributeTypes) const
{
DynamicObject::InternalSerialize(bag, attributeTypes);
if (attributeTypes & Attribute_Config) {
bag->Set("perfdata_path", m_PerfdataPath);
bag->Set("format_template", m_FormatTemplate);
bag->Set("rotation_interval", m_RotationInterval);
}
}
void PerfdataWriter::InternalDeserialize(const Dictionary::Ptr& bag, int attributeTypes)
{
DynamicObject::InternalDeserialize(bag, attributeTypes);
if (attributeTypes & Attribute_Config) {
m_PerfdataPath = bag->Get("perfdata_path");
m_FormatTemplate = bag->Get("format_template");
m_RotationInterval = bag->Get("rotation_interval");
}
}