/usr/include/mia-2.2/mia/core/delayedparameter.hh is in libmia-2.2-dev 2.2.2-1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | /* -*- mia-c++ -*-
*
* This file is part of MIA - a toolbox for medical image analysis
* Copyright (c) Leipzig, Madrid 1999-2014 Gert Wollny
*
* MIA is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* 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 MIA; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef mia_core_delayedparameter_hh
#define mia_core_delayedparameter_hh
#include <string>
#include <stdexcept>
#include <mia/core/defines.hh>
#include <mia/core/datapool.hh>
#include <mia/core/errormacro.hh>
NS_MIA_BEGIN
/**
\ingroup cmdline
\brief A parameter proxy object with a key to identify it.
This template is used to hold reference to data that may not yet be available and
will be/or is stored in the internal data pool.
One axample for its usage is to pass parameters to the filters in a filter
pipeline that are only created after the filters itself is created.
\sa CDatapool.
*/
template <typename T>
class TDelayedParameter {
public:
TDelayedParameter() = default;
/**
Assosiate the parameter with its key in the data pool.
At creation time, the data doesn't have to be available in the
data pool.
*/
TDelayedParameter(const std::string& key);
/**
Get the data assosiated with this parameter. Throws \a std::invalid_argument if the
key is not available in the data pool
*/
const T get() const;
/**
Check if the key is available in the data bool.
\returns true if the key is available
*/
bool pool_has_key() const;
/**
Check if this key is actually valid (i.e. not empty)
\returns true if the key is valid
*/
bool key_is_valid() const;
const std::string& get_key() const;
private:
std::string m_key;
};
template <typename T>
TDelayedParameter<T>::TDelayedParameter(const std::string& key):
m_key(key)
{
}
template <typename T>
const T TDelayedParameter<T>::get() const
{
if (!(CDatapool::instance().has_key(m_key))) {
throw create_exception<std::invalid_argument>("TDelayedParameter::get(): Key '", m_key,
"' is not availabe in the data pool");
}
return boost::any_cast<T>(CDatapool::instance().get(m_key));
}
template <typename T>
bool TDelayedParameter<T>::pool_has_key() const
{
return CDatapool::instance().has_key(m_key);
}
template <typename T>
bool TDelayedParameter<T>::key_is_valid() const
{
return !m_key.empty();
}
template <typename T>
const std::string& TDelayedParameter<T>::get_key() const
{
return m_key;
}
NS_MIA_END
#endif
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