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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#include "base/namespace.hpp"
#include "base/objectlock.hpp"
#include "base/debug.hpp"
#include "base/primitivetype.hpp"
#include "base/debuginfo.hpp"
#include "base/exception.hpp"
#include <sstream>
using namespace icinga;
template class std::map<icinga::String, std::shared_ptr<icinga::NamespaceValue> >;
REGISTER_PRIMITIVE_TYPE(Namespace, Object, Namespace::GetPrototype());
Namespace::Namespace(NamespaceBehavior *behavior)
: m_Behavior(std::unique_ptr<NamespaceBehavior>(behavior))
{ }
Value Namespace::Get(const String& field) const
{
ObjectLock olock(this);
Value value;
if (!GetOwnField(field, &value))
BOOST_THROW_EXCEPTION(ScriptError("Namespace does not contain field '" + field + "'"));
return value;
}
bool Namespace::Get(const String& field, Value *value) const
{
ObjectLock olock(this);
auto nsVal = GetAttribute(field);
if (!nsVal)
return false;
*value = nsVal->Get(DebugInfo());
return true;
}
void Namespace::Set(const String& field, const Value& value, bool overrideFrozen)
{
ObjectLock olock(this);
return SetFieldByName(field, value, overrideFrozen, DebugInfo());
}
bool Namespace::Contains(const String& field) const
{
ObjectLock olock(this);
return HasOwnField(field);
}
void Namespace::Remove(const String& field, bool overrideFrozen)
{
ObjectLock olock(this);
m_Behavior->Remove(this, field, overrideFrozen);
}
void Namespace::RemoveAttribute(const String& field)
{
ObjectLock olock(this);
Namespace::Iterator it;
it = m_Data.find(field);
if (it == m_Data.end())
return;
m_Data.erase(it);
}
NamespaceValue::Ptr Namespace::GetAttribute(const String& key) const
{
ObjectLock olock(this);
auto it = m_Data.find(key);
if (it == m_Data.end())
return nullptr;
return it->second;
}
void Namespace::SetAttribute(const String& key, const NamespaceValue::Ptr& nsVal)
{
ObjectLock olock(this);
m_Data[key] = nsVal;
}
Value Namespace::GetFieldByName(const String& field, bool, const DebugInfo& debugInfo) const
{
ObjectLock olock(this);
auto nsVal = GetAttribute(field);
if (nsVal)
return nsVal->Get(debugInfo);
else
return GetPrototypeField(const_cast<Namespace *>(this), field, false, debugInfo); /* Ignore indexer not found errors similar to the Dictionary class. */
}
void Namespace::SetFieldByName(const String& field, const Value& value, bool overrideFrozen, const DebugInfo& debugInfo)
{
ObjectLock olock(this);
auto nsVal = GetAttribute(field);
if (!nsVal)
m_Behavior->Register(this, field, value, overrideFrozen, debugInfo);
else
nsVal->Set(value, overrideFrozen, debugInfo);
}
bool Namespace::HasOwnField(const String& field) const
{
ObjectLock olock(this);
return GetAttribute(field) != nullptr;
}
bool Namespace::GetOwnField(const String& field, Value *result) const
{
ObjectLock olock(this);
auto nsVal = GetAttribute(field);
if (!nsVal)
return false;
*result = nsVal->Get(DebugInfo());
return true;
}
EmbeddedNamespaceValue::EmbeddedNamespaceValue(const Value& value)
: m_Value(value)
{ }
Value EmbeddedNamespaceValue::Get(const DebugInfo& debugInfo) const
{
return m_Value;
}
void EmbeddedNamespaceValue::Set(const Value& value, bool, const DebugInfo&)
{
m_Value = value;
}
void ConstEmbeddedNamespaceValue::Set(const Value& value, bool overrideFrozen, const DebugInfo& debugInfo)
{
if (!overrideFrozen)
BOOST_THROW_EXCEPTION(ScriptError("Constant must not be modified.", debugInfo));
EmbeddedNamespaceValue::Set(value, overrideFrozen, debugInfo);
}
void NamespaceBehavior::Register(const Namespace::Ptr& ns, const String& field, const Value& value, bool overrideFrozen, const DebugInfo& debugInfo) const
{
ns->SetAttribute(field, new EmbeddedNamespaceValue(value));
}
void NamespaceBehavior::Remove(const Namespace::Ptr& ns, const String& field, bool overrideFrozen)
{
if (!overrideFrozen) {
auto attr = ns->GetAttribute(field);
if (dynamic_pointer_cast<ConstEmbeddedNamespaceValue>(attr))
BOOST_THROW_EXCEPTION(ScriptError("Constants must not be removed."));
}
ns->RemoveAttribute(field);
}
void ConstNamespaceBehavior::Register(const Namespace::Ptr& ns, const String& field, const Value& value, bool overrideFrozen, const DebugInfo& debugInfo) const
{
if (m_Frozen && !overrideFrozen)
BOOST_THROW_EXCEPTION(ScriptError("Namespace is read-only and must not be modified.", debugInfo));
ns->SetAttribute(field, new ConstEmbeddedNamespaceValue(value));
}
void ConstNamespaceBehavior::Remove(const Namespace::Ptr& ns, const String& field, bool overrideFrozen)
{
if (m_Frozen && !overrideFrozen)
BOOST_THROW_EXCEPTION(ScriptError("Namespace is read-only and must not be modified."));
NamespaceBehavior::Remove(ns, field, overrideFrozen);
}
void ConstNamespaceBehavior::Freeze()
{
m_Frozen = true;
}
Namespace::Iterator Namespace::Begin()
{
ASSERT(OwnsLock());
return m_Data.begin();
}
Namespace::Iterator Namespace::End()
{
ASSERT(OwnsLock());
return m_Data.end();
}
Namespace::Iterator icinga::begin(const Namespace::Ptr& x)
{
return x->Begin();
}
Namespace::Iterator icinga::end(const Namespace::Ptr& x)
{
return x->End();
}
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