author | Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
Sun, 02 Mar 2008 21:12:21 +0100 | |
changeset 2532 | 86a40c7cbfe9 |
parent 2336 | 28ce210b91bb |
permissions | -rw-r--r-- |
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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */ |
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/* |
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* Copyright (c) 2007 INRIA |
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* All rights reserved. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation; |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
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*/ |
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#include "random-variable-default-value.h" |
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#include "log.h" |
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NS_LOG_COMPONENT_DEFINE ("RandomVariableDefaultValue"); |
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|
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namespace ns3 { |
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|
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RandomVariableDefaultValue::RandomVariableDefaultValue (std::string name, |
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std::string help, |
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std::string defaultValue) |
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: DefaultValueBase (name, help), |
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m_defaultValue (defaultValue), |
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m_value (defaultValue) |
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{ |
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if (!Parse (defaultValue, false, 0)) |
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{ |
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NS_FATAL_ERROR ("Invalid Random Variable specification: " << defaultValue); |
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} |
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DefaultValueList::Add (this); |
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} |
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|
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RandomVariable |
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RandomVariableDefaultValue::Get (void) const |
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{ |
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RandomVariable variable; |
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bool ok; |
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ok = Parse (m_value, true, &variable); |
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NS_ASSERT (ok); |
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return variable; |
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} |
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double |
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RandomVariableDefaultValue::ReadAsDouble (std::string value, bool &ok) const |
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{ |
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double v; |
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std::istringstream iss; |
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iss.str (value); |
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iss >> v; |
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ok = !iss.bad () && !iss.fail (); |
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return v; |
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} |
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bool |
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RandomVariableDefaultValue::Parse (const std::string &value, |
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bool mustCreate, RandomVariable *pVariable) const |
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{ |
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std::string::size_type pos = value.find_first_of(":"); |
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if (pos == std::string::npos) |
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{ |
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return false; |
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} |
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bool ok; |
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std::string type = value.substr (0, pos); |
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std::string v = value.substr (pos+1, std::string::npos); |
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if (type == "Constant") |
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{ |
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double constant = ReadAsDouble (v, ok); |
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if (mustCreate) |
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{ |
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NS_LOG_LOGIC ("create Constant constant=" << constant); |
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*pVariable = ConstantVariable (constant); |
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} |
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else |
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{ |
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NS_LOG_LOGIC ("parse Constant constant=" << constant); |
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} |
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return ok; |
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} |
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else if (type == "Uniform") |
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{ |
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std::string::size_type maxPos = v.find_first_of(":"); |
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if (maxPos == std::string::npos) |
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{ |
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return false; |
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} |
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std::string min = v.substr (0, maxPos); |
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std::string max = v.substr (maxPos + 1, std::string::npos); |
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double minVal; |
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double maxVal; |
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minVal = ReadAsDouble (min, ok); |
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maxVal = ReadAsDouble (max, ok); |
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if (mustCreate) |
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{ |
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NS_LOG_LOGIC ("create Uniform min=" << min << ", max=" << max); |
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*pVariable = UniformVariable (minVal, maxVal); |
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} |
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else |
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{ |
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NS_LOG_LOGIC ("parse Uniform min=" << min << ", max=" << max); |
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} |
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return ok; |
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} |
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else |
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{ |
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// XXX parse other types of distributions. |
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114 |
return false; |
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} |
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} |
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bool |
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RandomVariableDefaultValue::DoParseValue (const std::string &value) |
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{ |
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120 |
bool ok = Parse (value, false, 0); |
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if (ok) |
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{ |
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123 |
m_value = value; |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
124 |
} |
f75042c35fc6
RandomVariableDefaultValue
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parents:
diff
changeset
|
125 |
return ok; |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
126 |
} |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
127 |
std::string |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
128 |
RandomVariableDefaultValue::DoGetType (void) const |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
129 |
{ |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
130 |
return "(Uniform:min:max|Constant:cst)"; |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
131 |
} |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
132 |
std::string |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
133 |
RandomVariableDefaultValue::DoGetDefaultValue (void) const |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
134 |
{ |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
135 |
return m_defaultValue; |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
136 |
} |
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
137 |
|
f75042c35fc6
RandomVariableDefaultValue
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
138 |
} // namespace ns3 |