--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/core/random-variable-default-value.cc Mon Jul 23 14:41:34 2007 +0200
@@ -0,0 +1,137 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2007 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 "random-variable-default-value.h"
+#include "ns3/debug.h"
+
+NS_DEBUG_COMPONENT_DEFINE ("RandomVariableDefaultValue");
+
+namespace ns3 {
+
+RandomVariableDefaultValue::RandomVariableDefaultValue (std::string name,
+ std::string help,
+ std::string defaultValue)
+ : DefaultValueBase (name, help),
+ m_defaultValue (defaultValue),
+ m_value (defaultValue)
+{
+ if (!Parse (defaultValue, false, 0))
+ {
+ NS_FATAL_ERROR ("Invalid Random Variable specification: " << defaultValue);
+ }
+ DefaultValueList::Add (this);
+}
+
+RandomVariable *
+RandomVariableDefaultValue::GetCopy (void)
+{
+ RandomVariable *variable;
+ bool ok = Parse (m_value, true, &variable);
+ NS_ASSERT (ok);
+ return variable;
+}
+double
+RandomVariableDefaultValue::ReadAsDouble (std::string value, bool &ok)
+{
+ double v;
+ std::istringstream iss;
+ iss.str (value);
+ iss >> v;
+ ok = !iss.bad () && !iss.fail ();
+ return v;
+}
+bool
+RandomVariableDefaultValue::Parse (const std::string &value,
+ bool mustCreate, RandomVariable **pVariable)
+{
+ std::string::size_type pos = value.find_first_of(":");
+ if (pos == std::string::npos)
+ {
+ return false;
+ }
+ bool ok;
+ std::string type = value.substr (0, pos);
+ std::string v = value.substr (pos+1, std::string::npos);
+ if (type == "Constant")
+ {
+ double constant = ReadAsDouble (v, ok);
+ if (mustCreate)
+ {
+ NS_DEBUG ("create Constant constant=" << constant);
+ *pVariable = new ConstantVariable (constant);
+ }
+ else
+ {
+ NS_DEBUG ("parse Constant constant=" << constant);
+ }
+ return ok;
+ }
+ else if (type == "Uniform")
+ {
+ std::string::size_type maxPos = v.find_first_of(":");
+ if (maxPos == std::string::npos)
+ {
+ return false;
+ }
+ std::string min = v.substr (0, maxPos);
+ std::string max = v.substr (maxPos + 1, std::string::npos);
+ double minVal;
+ double maxVal;
+ minVal = ReadAsDouble (min, ok);
+ maxVal = ReadAsDouble (max, ok);
+ if (mustCreate)
+ {
+ NS_DEBUG ("create Uniform min=" << min << ", max=" << max);
+ *pVariable = new UniformVariable (minVal, maxVal);
+ }
+ else
+ {
+ NS_DEBUG ("parse Uniform min=" << min << ", max=" << max);
+ }
+ return ok;
+ }
+ else
+ {
+ // XXX parse other types of distributions.
+ return false;
+ }
+}
+bool
+RandomVariableDefaultValue::DoParseValue (const std::string &value)
+{
+ bool ok = Parse (value, false, 0);
+ if (ok)
+ {
+ m_value = value;
+ }
+ return ok;
+}
+std::string
+RandomVariableDefaultValue::DoGetType (void) const
+{
+ return "(Uniform:min:max|Constant:cst)";
+}
+std::string
+RandomVariableDefaultValue::DoGetDefaultValue (void) const
+{
+ return m_defaultValue;
+}
+
+} // namespace ns3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/core/random-variable-default-value.h Mon Jul 23 14:41:34 2007 +0200
@@ -0,0 +1,50 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2007 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>
+ */
+#ifndef RANDOM_VARIABLE_DEFAULT_VALUE_H
+#define RANDOM_VARIABLE_DEFAULT_VALUE_H
+
+#include "random-variable.h"
+#include "default-value.h"
+
+namespace ns3 {
+
+class RandomVariableDefaultValue : public DefaultValueBase
+{
+ public:
+ RandomVariableDefaultValue (std::string name,
+ std::string help,
+ std::string defaultValue);
+
+ RandomVariable *GetCopy (void);
+private:
+ bool Parse (const std::string &value, bool mustCreate, RandomVariable **pVariable);
+ double ReadAsDouble (const std::string value, bool &ok);
+ virtual bool DoParseValue (const std::string &value);
+ virtual std::string DoGetType (void) const;
+ virtual std::string DoGetDefaultValue (void) const;
+
+ std::string m_defaultValue;
+ std::string m_value;
+};
+
+} // namespace ns3
+
+#endif /* RANDOM_VARIABLE_DEFAULT_VALUE_H */
--- a/src/core/wscript Mon Jul 23 14:13:03 2007 +0200
+++ b/src/core/wscript Mon Jul 23 14:41:34 2007 +0200
@@ -37,6 +37,7 @@
'command-line.cc',
'type-name.cc',
'component-manager.cc',
+ 'random-variable-default-value.cc',
]
core.includes = '.'
@@ -66,6 +67,7 @@
'command-line.h',
'type-name.h',
'component-manager.h',
- 'type-traits.h'
+ 'type-traits.h',
+ 'random-variable-default-value.h',
]