icinga2/components/compat/compatcomponent.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. *
******************************************************************************/
#include "i2-compat.h"
using namespace icinga;
/**
* Hint: The reason why we're using "\n" rather than std::endl is because
* std::endl also _flushes_ the output stream which severely degrades
* performance (see http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch25s02.html).
*/
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/**
* Returns the name of the component.
*
* @returns The name.
*/
string CompatComponent::GetName(void) const
{
return "compat";
}
/**
* Starts the component.
*/
void CompatComponent::Start(void)
{
m_StatusTimer = boost::make_shared<Timer>();
m_StatusTimer->SetInterval(15);
m_StatusTimer->OnTimerExpired.connect(boost::bind(&CompatComponent::StatusTimerHandler, this));
m_StatusTimer->Start();
m_StatusTimer->Reschedule(0);
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CIB::RequireInformation(CIB_Configuration);
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CIB::RequireInformation(CIB_ProgramStatus);
CIB::RequireInformation(CIB_ServiceStatus);
}
/**
* Stops the component.
*/
void CompatComponent::Stop(void)
{
}
void CompatComponent::DumpHostStatus(ofstream& fp, Host host)
{
int state;
if (!host.IsReachable())
state = 2; /* unreachable */
else if (!host.IsUp())
state = 1; /* down */
else
state = 0; /* up */
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fp << "hoststatus {" << "\n"
<< "\t" << "host_name=" << host.GetName() << "\n"
<< "\t" << "has_been_checked=1" << "\n"
<< "\t" << "should_be_scheduled=1" << "\n"
<< "\t" << "check_execution_time=0" << "\n"
<< "\t" << "check_latency=0" << "\n"
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<< "\t" << "current_state=" << state << "\n"
<< "\t" << "state_type=1" << "\n"
<< "\t" << "last_check=" << time(NULL) << "\n"
<< "\t" << "next_check=" << time(NULL) << "\n"
<< "\t" << "current_attempt=1" << "\n"
<< "\t" << "max_attempts=1" << "\n"
<< "\t" << "active_checks_enabled=1" << "\n"
<< "\t" << "passive_checks_enabled=1" << "\n"
<< "\t" << "last_update=" << time(NULL) << "\n"
<< "\t" << "}" << "\n"
<< "\n";
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}
void CompatComponent::DumpHostObject(ofstream& fp, Host host)
{
fp << "define host {" << "\n"
<< "\t" << "host_name" << "\t" << host.GetName() << "\n"
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<< "\t" << "alias" << "\t" << host.GetAlias() << "\n"
<< "\t" << "check_interval" << "\t" << 1 << "\n"
<< "\t" << "retry_interval" << "\t" << 1 << "\n"
<< "\t" << "max_check_attempts" << "\t" << 1 << "\n"
<< "\t" << "active_checks_enabled" << "\t" << 1 << "\n"
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<< "\t" << "passive_checks_enabled" << "\t" << 1 << "\n";
set<string> parents = host.GetParents();
if (!parents.empty()) {
fp << "\t" << "parents" << "\t";
DumpStringList(fp, parents);
fp << "\n";
}
fp << "\t" << "}" << "\n"
<< "\n";
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}
void CompatComponent::DumpServiceStatus(ofstream& fp, Service service)
{
string output;
string perfdata;
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time_t schedule_start = -1, schedule_end = -1;
time_t execution_start = -1, execution_end = -1;
if (service.HasLastCheckResult()) {
CheckResult cr = service.GetLastCheckResult();
output = cr.GetOutput();
schedule_start = cr.GetScheduleStart();
schedule_end = cr.GetScheduleEnd();
execution_start = cr.GetExecutionStart();
execution_end = cr.GetExecutionEnd();
perfdata = cr.GetPerformanceDataRaw();
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}
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time_t execution_time = (execution_end - execution_start);
time_t latency = (schedule_end - schedule_start) - execution_time;
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int state = service.GetState();
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if (!service.IsReachable()) {
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state = StateCritical;
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string text = "One or more parent services are unavailable.";
if (output.empty())
output = text;
else
output = text + " (" + output + ")";
}
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if (state > StateUnknown)
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state = StateUnknown;
fp << "servicestatus {" << "\n"
<< "\t" << "host_name=" << service.GetHost().GetName() << "\n"
<< "\t" << "service_description=" << service.GetAlias() << "\n"
<< "\t" << "check_interval=" << service.GetCheckInterval() / 60.0 << "\n"
<< "\t" << "retry_interval=" << service.GetRetryInterval() / 60.0 << "\n"
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<< "\t" << "has_been_checked=" << (service.HasLastCheckResult() ? 1 : 0) << "\n"
<< "\t" << "should_be_scheduled=1" << "\n"
<< "\t" << "check_execution_time=" << execution_time << "\n"
<< "\t" << "check_latency=" << latency << "\n"
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<< "\t" << "current_state=" << state << "\n"
<< "\t" << "state_type=" << service.GetStateType() << "\n"
<< "\t" << "plugin_output=" << output << "\n"
<< "\t" << "performance_data=" << perfdata << "\n"
<< "\t" << "last_check=" << schedule_end << "\n"
<< "\t" << "next_check=" << service.GetNextCheck() << "\n"
<< "\t" << "current_attempt=" << service.GetCurrentCheckAttempt() << "\n"
<< "\t" << "max_attempts=" << service.GetMaxCheckAttempts() << "\n"
<< "\t" << "last_state_change=" << service.GetLastStateChange() << "\n"
<< "\t" << "last_hard_state_change=" << service.GetLastHardStateChange() << "\n"
<< "\t" << "last_update=" << time(NULL) << "\n"
<< "\t" << "active_checks_enabled=1" << "\n"
<< "\t" << "passive_checks_enabled=1" << "\n"
<< "\t" << "}" << "\n"
<< "\n";
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}
void CompatComponent::DumpServiceObject(ofstream& fp, Service service)
{
fp << "define service {" << "\n"
<< "\t" << "host_name" << "\t" << service.GetHost().GetName() << "\n"
<< "\t" << "service_description" << "\t" << service.GetAlias() << "\n"
<< "\t" << "check_command" << "\t" << "check_i2" << "\n"
<< "\t" << "check_interval" << "\t" << service.GetCheckInterval() / 60.0 << "\n"
<< "\t" << "retry_interval" << "\t" << service.GetRetryInterval() / 60.0 << "\n"
<< "\t" << "max_check_attempts" << "\t" << 1 << "\n"
<< "\t" << "active_checks_enabled" << "\t" << 1 << "\n"
<< "\t" << "passive_checks_enabled" << "\t" << 1 << "\n"
<< "\t" << "}" << "\n"
<< "\n";
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}
/**
* Periodically writes the status.dat and objects.cache files.
*/
void CompatComponent::StatusTimerHandler(void)
{
ofstream statusfp;
statusfp.open("status.dat.tmp", ofstream::out | ofstream::trunc);
statusfp << "# Icinga status file" << "\n"
<< "# This file is auto-generated. Do not modify this file." << "\n"
<< "\n";
statusfp << "info {" << "\n"
<< "\t" << "created=" << time(NULL) << "\n"
<< "\t" << "version=2.0" << "\n"
<< "\t" << "}" << "\n"
<< "\n";
statusfp << "programstatus {" << "\n"
<< "\t" << "daemon_mode=1" << "\n"
<< "\t" << "program_start=" << IcingaApplication::GetInstance()->GetStartTime() << "\n"
<< "\t" << "active_service_checks_enabled=1" << "\n"
<< "\t" << "passive_service_checks_enabled=1" << "\n"
<< "\t" << "active_host_checks_enabled=0" << "\n"
<< "\t" << "passive_host_checks_enabled=0" << "\n"
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<< "\t" << "check_service_freshness=0" << "\n"
<< "\t" << "check_host_freshness=0" << "\n"
<< "\t" << "enable_flap_detection=1" << "\n"
<< "\t" << "enable_failure_prediction=0" << "\n"
<< "\t" << "active_scheduled_service_check_stats=" << CIB::GetTaskStatistics(60) << "," << CIB::GetTaskStatistics(5 * 60) << "," << CIB::GetTaskStatistics(15 * 60) << "\n"
<< "\t" << "}" << "\n"
<< "\n";
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ofstream objectfp;
objectfp.open("objects.cache.tmp", ofstream::out | ofstream::trunc);
objectfp << "# Icinga object cache file" << "\n"
<< "# This file is auto-generated. Do not modify this file." << "\n"
<< "\n";
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map<string, vector<string> > hostgroups;
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ConfigObject::TMap::Range range;
range = ConfigObject::GetObjects("host");
ConfigObject::TMap::Iterator it;
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for (it = range.first; it != range.second; it++) {
Host host = it->second;
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Dictionary::Ptr dict;
Dictionary::Iterator dt;
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dict = host.GetGroups();
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if (dict) {
for (dt = dict->Begin(); dt != dict->End(); dt++)
hostgroups[dt->second].push_back(host.GetName());
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}
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DumpHostStatus(statusfp, host);
DumpHostObject(objectfp, host);
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}
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map<string, vector<string> >::iterator hgt;
for (hgt = hostgroups.begin(); hgt != hostgroups.end(); hgt++) {
objectfp << "define hostgroup {" << "\n"
<< "\t" << "hostgroup_name" << "\t" << hgt->first << "\n";
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if (HostGroup::Exists(hgt->first)) {
HostGroup hg = HostGroup::GetByName(hgt->first);
objectfp << "\t" << "alias" << "\t" << hg.GetAlias() << "\n"
<< "\t" << "notes_url" << "\t" << hg.GetNotesUrl() << "\n"
<< "\t" << "action_url" << "\t" << hg.GetActionUrl() << "\n";
}
objectfp << "\t" << "members" << "\t";
DumpStringList(objectfp, hgt->second);
objectfp << "\n"
<< "}" << "\n";
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}
range = ConfigObject::GetObjects("service");
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map<string, vector<Service> > servicegroups;
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for (it = range.first; it != range.second; it++) {
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Service service = it->second;
Dictionary::Ptr dict;
Dictionary::Iterator dt;
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dict = service.GetGroups();
if (dict) {
for (dt = dict->Begin(); dt != dict->End(); dt++)
servicegroups[dt->second].push_back(service);
}
DumpServiceStatus(statusfp, service);
DumpServiceObject(objectfp, service);
}
map<string, vector<Service > >::iterator sgt;
for (sgt = servicegroups.begin(); sgt != servicegroups.end(); sgt++) {
objectfp << "define servicegroup {" << "\n"
<< "\t" << "servicegroup_name" << "\t" << sgt->first << "\n";
if (ServiceGroup::Exists(sgt->first)) {
ServiceGroup sg = ServiceGroup::GetByName(sgt->first);
objectfp << "\t" << "alias" << "\t" << sg.GetAlias() << "\n"
<< "\t" << "notes_url" << "\t" << sg.GetNotesUrl() << "\n"
<< "\t" << "action_url" << "\t" << sg.GetActionUrl() << "\n";
}
objectfp << "\t" << "members" << "\t";
vector<string> sglist;
vector<Service>::iterator vt;
for (vt = sgt->second.begin(); vt != sgt->second.end(); vt++) {
sglist.push_back(vt->GetHost().GetName());
sglist.push_back(vt->GetAlias());
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}
DumpStringList(objectfp, sglist);
objectfp << "\n"
<< "}" << "\n";
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}
statusfp.close();
rename("status.dat.tmp", "status.dat");
objectfp.close();
rename("objects.cache.tmp", "objects.cache");
}
EXPORT_COMPONENT(compat, CompatComponent);