bool Dependency::EvaluateApplyRule(const Checkable::Ptr& checkable, const ApplyRule& rule)
{
DebugInfo di = rule.GetDebugInfo();
std::ostringstream msgbuf;
msgbuf << "Evaluating 'apply' rule (" << di << ")";
CONTEXT(msgbuf.str());
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
ScriptFrame frame;
if (rule.GetScope())
rule.GetScope()->CopyTo(frame.Locals);
frame.Locals->Set("host", host);
if (service)
frame.Locals->Set("service", service);
Value vinstances;
if (rule.GetFTerm()) {
try {
vinstances = rule.GetFTerm()->Evaluate(frame);
} catch (const std::exception&) {
/* Silently ignore errors here and assume there are no instances. */
return false;
}
} else {
Array::Ptr instances = new Array();
instances->Add("");
vinstances = instances;
}
bool match = false;
if (vinstances.IsObjectType<Array>()) {
if (!rule.GetFVVar().IsEmpty())
BOOST_THROW_EXCEPTION(ScriptError("Array iterator requires value to be an array.", di));
Array::Ptr arr = vinstances;
Array::Ptr arrclone = arr->ShallowClone();
ObjectLock olock(arrclone);
BOOST_FOREACH(const Value& instance, arrclone) {
String name = rule.GetName();
if (!rule.GetFKVar().IsEmpty()) {
frame.Locals->Set(rule.GetFKVar(), instance);
name += instance;
}
if (EvaluateApplyRuleInstance(checkable, name, frame, rule))
match = true;
}
} else if (vinstances.IsObjectType<Dictionary>()) {
bool ScheduledDowntime::EvaluateApplyRule(const Checkable::Ptr& checkable, const ApplyRule& rule)
{
DebugInfo di = rule.GetDebugInfo();
std::ostringstream msgbuf;
msgbuf << "Evaluating 'apply' rule (" << di << ")";
CONTEXT(msgbuf.str());
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
VMFrame frame;
if (rule.GetScope())
rule.GetScope()->CopyTo(frame.Locals);
frame.Locals->Set("host", host);
if (service)
frame.Locals->Set("service", service);
if (!rule.EvaluateFilter(frame))
return false;
Value vinstances;
if (rule.GetFTerm()) {
vinstances = rule.GetFTerm()->Evaluate(frame);
} else {
Array::Ptr instances = new Array();
instances->Add("");
vinstances = instances;
}
if (vinstances.IsObjectType<Array>()) {
if (!rule.GetFVVar().IsEmpty())
BOOST_THROW_EXCEPTION(ConfigError("Array iterator requires value to be an array.") << errinfo_debuginfo(di));
Array::Ptr arr = vinstances;
ObjectLock olock(arr);
BOOST_FOREACH(const String& instance, arr) {
String name = rule.GetName();
if (!rule.GetFKVar().IsEmpty()) {
frame.Locals->Set(rule.GetFKVar(), instance);
name += instance;
}
EvaluateApplyRuleInstance(checkable, name, frame, rule);
}
} else if (vinstances.IsObjectType<Dictionary>()) {
bool Notification::EvaluateApplyRule(const Checkable::Ptr& checkable, const ApplyRule& rule)
{
DebugInfo di = rule.GetDebugInfo();
std::ostringstream msgbuf;
msgbuf << "Evaluating 'apply' rule (" << di << ")";
CONTEXT(msgbuf.str());
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
Dictionary::Ptr locals = make_shared<Dictionary>();
locals->Set("host", host);
if (service)
locals->Set("service", service);
if (!rule.EvaluateFilter(locals))
return false;
std::ostringstream msgbuf2;
msgbuf2 << "Applying notification '" << rule.GetName() << "' to object '" << checkable->GetName() << "' for rule " << di;
Log(LogDebug, "icinga", msgbuf2.str());
ConfigItemBuilder::Ptr builder = make_shared<ConfigItemBuilder>(di);
builder->SetType("Notification");
builder->SetName(rule.GetName());
builder->SetScope(rule.GetScope());
builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
make_shared<AExpression>(&AExpression::OpLiteral, "host_name", di),
make_shared<AExpression>(&AExpression::OpLiteral, host->GetName(), di),
di));
if (service) {
builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
make_shared<AExpression>(&AExpression::OpLiteral, "service_name", di),
make_shared<AExpression>(&AExpression::OpLiteral, service->GetShortName(), di),
di));
}
builder->AddExpression(rule.GetExpression());
ConfigItem::Ptr notificationItem = builder->Compile();
notificationItem->Register();
DynamicObject::Ptr dobj = notificationItem->Commit();
dobj->OnConfigLoaded();
return true;
}
bool Service::EvaluateApplyRule(const Host::Ptr& host, const ApplyRule& rule)
{
DebugInfo di = rule.GetDebugInfo();
std::ostringstream msgbuf;
msgbuf << "Evaluating 'apply' rule (" << di << ")";
CONTEXT(msgbuf.str());
ScriptFrame frame;
if (rule.GetScope())
rule.GetScope()->CopyTo(frame.Locals);
frame.Locals->Set("host", host);
Value vinstances;
if (rule.GetFTerm()) {
try {
vinstances = rule.GetFTerm()->Evaluate(frame);
} catch (const std::exception&) {
/* Silently ignore errors here and assume there are no instances. */
return false;
}
} else {
Array::Ptr instances = new Array();
instances->Add("");
vinstances = instances;
}
bool match = false;
if (vinstances.IsObjectType<Array>()) {
if (!rule.GetFVVar().IsEmpty())
BOOST_THROW_EXCEPTION(ScriptError("Dictionary iterator requires value to be a dictionary.", di));
Array::Ptr arr = vinstances;
ObjectLock olock(arr);
for (const Value& instance : arr) {
String name = rule.GetName();
if (!rule.GetFKVar().IsEmpty()) {
frame.Locals->Set(rule.GetFKVar(), instance);
name += instance;
}
if (EvaluateApplyRuleInstance(host, name, frame, rule))
match = true;
}
} else if (vinstances.IsObjectType<Dictionary>()) {
if (rule.GetFVVar().IsEmpty())
BOOST_THROW_EXCEPTION(ScriptError("Array iterator requires value to be an array.", di));
Dictionary::Ptr dict = vinstances;
for (const String& key : dict->GetKeys()) {
frame.Locals->Set(rule.GetFKVar(), key);
frame.Locals->Set(rule.GetFVVar(), dict->Get(key));
if (EvaluateApplyRuleInstance(host, rule.GetName() + key, frame, rule))
match = true;
}
}
return match;
}