#include <config.h>
#include <graph/ConstantNode.h>
#include <graph/NodeNameTab.h>

#include <sstream>
#include <cmath>

using std::string;
using std::ostringstream;
using std::floor;

ConstantNode::ConstantNode(double value)
  : Node(Index(1))
{
  data.setValue(&value, 1);
  data.setFixed(true);
  if (value == floor(value)) {
    data.setDiscreteValued(true);
  }
}

void ConstantNode::forwardSample()
{
}

string ConstantNode::name(NodeNameTab const &name_table) const
{
  string name = name_table.getName(this);
  if (!name.empty())
    return name;

  ostringstream os;
  os << *data.value();
  return os.str();
}

bool ConstantNode::isStochastic() const { return true; }