/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2008 INRIA
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
*/
#include "attribute-list.h"
#include "string.h"
#include "singleton.h"
namespace ns3 {
/*********************************************************************
* The AttributeList container implementation
*********************************************************************/
AttributeList::AttributeList ()
{}
AttributeList::AttributeList (const AttributeList &o)
{
for (Attrs::const_iterator i = o.m_attributes.begin (); i != o.m_attributes.end (); i++)
{
struct Attr attr;
attr.checker = i->checker;
attr.value = i->value.Copy ();
m_attributes.push_back (attr);
}
}
AttributeList &
AttributeList::operator = (const AttributeList &o)
{
Reset ();
for (Attrs::const_iterator i = o.m_attributes.begin (); i != o.m_attributes.end (); i++)
{
struct Attr attr;
attr.checker = i->checker;
attr.value = i->value.Copy ();
m_attributes.push_back (attr);
}
return *this;
}
AttributeList::~AttributeList ()
{
Reset ();
}
void
AttributeList::Set (std::string name, Attribute value)
{
struct TypeId::AttributeInfo info;
bool ok = TypeId::LookupAttributeByFullName (name, &info);
if (!ok)
{
NS_FATAL_ERROR ("Could not find attribute "<<name);
}
ok = DoSet (&info, value);
if (!ok)
{
NS_FATAL_ERROR ("Could not set value for attribute "<<name);
}
}
bool
AttributeList::SetFailSafe (std::string name, Attribute value)
{
struct TypeId::AttributeInfo info;
bool ok = TypeId::LookupAttributeByFullName (name, &info);
if (!ok)
{
return false;
}
ok = DoSet (&info, value);
return ok;
}
void
AttributeList::SetWithTid (TypeId tid, std::string name, Attribute value)
{
struct TypeId::AttributeInfo info;
bool ok = tid.LookupAttributeByName (name, &info);
if (!ok)
{
NS_FATAL_ERROR ("Could not find attribute "<<tid.GetName ()<<"::"<<name);
}
ok = DoSet (&info, value);
if (!ok)
{
NS_FATAL_ERROR ("Could not set value for attribute "<<tid.GetName ()<<"::"<<name);
}
}
void
AttributeList::DoSetOne (Ptr<const AttributeChecker> checker, Attribute value)
{
// get rid of any previous value stored in this
// vector of values.
for (Attrs::iterator k = m_attributes.begin (); k != m_attributes.end (); k++)
{
if (k->checker == checker)
{
m_attributes.erase (k);
break;
}
}
// store the new value.
struct Attr attr;
attr.checker = checker;
attr.value = value.Copy ();
m_attributes.push_back (attr);
}
bool
AttributeList::DoSet (struct TypeId::AttributeInfo *info, Attribute value)
{
if (info->checker == 0)
{
return false;
}
bool ok = info->checker->Check (value);
if (!ok)
{
// attempt to convert to string.
const StringValue *str = value.DynCast<const StringValue *> ();
if (str == 0)
{
return false;
}
// attempt to convert back to value.
Attribute v = info->checker->Create ();
ok = v.DeserializeFromString (str->Get ().Get (), info->checker);
if (!ok)
{
return false;
}
ok = info->checker->Check (v);
if (!ok)
{
return false;
}
value = v;
}
DoSetOne (info->checker, value);
return true;
}
void
AttributeList::Reset (void)
{
m_attributes.clear ();
}
AttributeList *
AttributeList::GetGlobal (void)
{
return Singleton<AttributeList>::Get ();
}
std::string
AttributeList::LookupAttributeFullNameByChecker (Ptr<const AttributeChecker> checker) const
{
for (uint32_t i = 0; i < TypeId::GetRegisteredN (); i++)
{
TypeId tid = TypeId::GetRegistered (i);
for (uint32_t j = 0; j < tid.GetAttributeN (); j++)
{
if (checker == tid.GetAttributeChecker (j))
{
return tid.GetAttributeFullName (j);
}
}
}
NS_FATAL_ERROR ("Could not find requested Accessor.");
// quiet compiler.
return "";
}
std::string
AttributeList::SerializeToString (void) const
{
std::ostringstream oss;
for (Attrs::const_iterator i = m_attributes.begin (); i != m_attributes.end (); i++)
{
std::string name = LookupAttributeFullNameByChecker (i->checker);
oss << name << "=" << i->value.SerializeToString (i->checker);
if (i != m_attributes.end ())
{
oss << "|";
}
}
return oss.str ();
}
bool
AttributeList::DeserializeFromString (std::string str)
{
Reset ();
std::string::size_type cur;
cur = 0;
do {
std::string::size_type equal = str.find ("=", cur);
if (equal == std::string::npos)
{
// XXX: invalid attribute.
break;
}
else
{
std::string name = str.substr (cur, equal-cur);
struct TypeId::AttributeInfo info;
if (!TypeId::LookupAttributeByFullName (name, &info))
{
// XXX invalid name.
break;
}
else
{
std::string::size_type next = str.find ("|", cur);
std::string value;
if (next == std::string::npos)
{
value = str.substr (equal+1, str.size () - (equal+1));
cur = str.size ();
}
else
{
value = str.substr (equal+1, next - (equal+1));
cur++;
}
Attribute val = info.checker->Create ();
bool ok = val.DeserializeFromString (value, info.checker);
if (!ok)
{
// XXX invalid value
break;
}
else
{
DoSetOne (info.checker, val);
}
}
}
} while (cur != str.size ());
return true;
}
} // namespace ns3