attribute_impl.hpp

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//  Copyright (c) 2005-2008 Hartmut Kaiser
// 
//  Distributed under the Boost Software License, Version 1.0. (See accompanying 
//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#ifndef SAGA_SAGA_DETAIL_ATTRIBUTE_IMPL_HPP
#define SAGA_SAGA_DETAIL_ATTRIBUTE_IMPL_HPP

// include stl
#include <vector>
#include <string>

#include <saga/saga/impl_base.hpp>
#include <saga/impl/metric.hpp>

// include dependent spec sections
#include <saga/saga/detail/attribute.hpp>
#include <saga/saga/detail/dispatch_priv.hpp>

// suppress warnings about dependent classes not being exported from the dll
#if defined(BOOST_MSVC)
#pragma warning(push)
#pragma warning(disable : 4251 4231 4660)
#endif

namespace saga { namespace detail
{
    template <typename Derived>
    impl::attribute_interface*
    attribute<Derived>::get_attr (void) 
    { 
          return derived().get_impl()->get_attributes(); 
    }
    
    template <typename Derived>
    impl::attribute_interface*
    attribute<Derived>::get_attr (void) const 
    { 
        return derived().get_impl()->get_attributes(); 
    }

    template <typename Derived>
    saga::impl::object*
    attribute<Derived>::get_target_object (void) const 
    { 
        return boost::get_pointer(derived().get_impl()); 
    }

    template <typename Derived>
    inline void 
    attribute<Derived>::init (strmap_type const& scalar_ro,
        strmap_type const& scalar_rw, strmap_type const& vector_ro,
        strmap_type const& vector_rw)
    {
        derived().get_impl()->get_attributes()->init(scalar_ro, scalar_rw, vector_ro, vector_rw);
    }
    
    template <typename Derived>
    inline void 
    attribute<Derived>::init (bool extensible, bool cache_only)
    {
        derived().get_impl()->get_attributes()->init(extensible, cache_only);
    }
    
    template <typename Derived>
    inline void 
    attribute<Derived>::init_keynames (strvec_type const& keynames)
    {
        derived().get_impl()->get_attributes()->init_keynames(keynames);
    }
    
    
    /* setters/getters */
    struct get_attribute_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, std::string const& key, bool sync) 
        {
            if (!this_.attribute_exists(key))
            {
              // DoesNotExist
              SAGA_THROW_VERBATIM(this_.get_target_object(), 
                  "attribute '" + key + "' does not exist", 
                  saga::DoesNotExist);
            }
            return this_.get_attr()->get_attribute (key, sync);
        }
    };

    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::get_attributepriv (Derived const& this_,
        std::string const& key) 
    {
        return dispatch_priv<Tag>::
            template call<get_attribute_priv>(this_, key);
    }

    struct set_attribute_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, 
            std::string const& key, std::string const& val, bool sync)
        {
            if (this_.attribute_exists(key) && 
                this_.attribute_is_readonly(key))
            {
                // ReadOnly
                SAGA_THROW_VERBATIM(this_.get_target_object(), 
                    "attribute '" + key + "' is readonly", saga::PermissionDenied);
            }
            return this_.get_attr()->set_attribute (key, val, sync);
        }
    };
      
    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::set_attributepriv (Derived& this_,
        std::string const& key, std::string const& val) 
    {
        return dispatch_priv<Tag>::
            template call<set_attribute_priv>(this_, key, val);
    }

    struct get_vector_attribute_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, std::string const& key, bool sync) 
        {
            if (!this_.attribute_exists (key))
            {
                // DoesNotExist
                SAGA_THROW_VERBATIM(this_.get_target_object(),
                    "attribute '" + key + "' does not exist", 
                    saga::DoesNotExist);
            }
            return this_.get_attr()->get_vector_attribute (key, sync);
        }
    };
        
    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::get_vector_attributepriv (Derived const& this_,
        std::string const& key) 
    {
        return dispatch_priv<Tag>::
            template call<get_vector_attribute_priv>(this_, key);
    }

    struct set_vector_attribute_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, std::string const& key, 
            typename attribute<Derived>::strvec_type const& val, bool sync)
        { 
            if (this_.attribute_exists(key) && 
                this_.attribute_is_readonly(key))
            {
                // ReadOnly
                SAGA_THROW_VERBATIM(this_.get_target_object(),
                    "attribute '" + key + "' is readonly", saga::PermissionDenied);
            }
            return this_.get_attr()->set_vector_attribute (key, val, sync);
        }
     };
     
    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::set_vector_attributepriv (Derived& this_,
        std::string const& key, strvec_type const& val) 
    {
        return dispatch_priv<Tag>::
            template call<set_vector_attribute_priv>(this_, key, val);
    }

    struct remove_attribute_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, std::string const& key, bool sync)
        {
            impl::attribute_interface* attr = this_.get_attr();
            if (!this_.attribute_exists(key))
            {
                // DoesNotExist
                SAGA_THROW_VERBATIM(this_.get_target_object(), 
                    "attribute '" + key + "' does not exist", 
                    saga::DoesNotExist);
            }
            if (!this_.get_target_object()->get_attributes()->attributes_extensible() || 
                this_.attribute_is_readonly(key))
            {
                // ReadOnly
                SAGA_THROW_VERBATIM(this_.get_target_object(),
                    "attribute '" + key + "' is readonly", saga::PermissionDenied);
            }
            if (!this_.attribute_is_removable(key))
            {
                // ReadOnly
                SAGA_THROW_VERBATIM(this_.get_target_object(),
                    "attribute '" + key + "' is readonly", saga::PermissionDenied);
            }
            return attr->remove_attribute(key, sync);
        }
    };

    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::remove_attributepriv (Derived& this_,
        std::string const& key) 
    {
        return dispatch_priv<Tag>::
            template call<remove_attribute_priv>(this_, key);
    }

    /* inspection */
    struct list_attributes_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, bool sync) 
        {
            return this_.get_attr()->list_attributes(sync);
        }
    };
        
    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::list_attributespriv (Derived const& this_) 
    {
        return dispatch_priv<Tag>::template call<list_attributes_priv>(this_);
    }

    struct find_attributes_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, std::string const& pattern, bool sync) 
        {
            return this_.get_attr()->find_attributes(pattern, sync);
        }
    };
        
    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::find_attributespriv (Derived const& this_,
        std::string const& pattern) 
    {
        return dispatch_priv<Tag>::
            template call<find_attributes_priv>(this_, pattern);
    }

    struct attribute_exists_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, std::string const& key, bool sync) 
        {
            return this_.get_attr()->attribute_exists(key, sync);
        }
    };
    
    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::attribute_existspriv (Derived const& this_,
        std::string const& key) 
    {
        return dispatch_priv<Tag>::
            template call<attribute_exists_priv>(this_, key);
    }

    struct attribute_is_readonly_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, std::string const& key, bool sync) 
        {
            if (!this_.attribute_exists(key))
            {
                // DoesNotExist
                SAGA_THROW_VERBATIM(this_.get_target_object(),
                    "attribute '" + key + "' does not exist", 
                    saga::DoesNotExist);
            }
            return this_.get_attr()->attribute_is_readonly(key, sync);
        }
    };
    
    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::attribute_is_readonlypriv (
        Derived const& this_, std::string const& key) 
    {
        return dispatch_priv<Tag>::
            template call<attribute_is_readonly_priv>(this_, key);
    }

    struct attribute_is_writable_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, std::string const& key, bool sync) 
        {
            if (!this_.attribute_exists(key))
            {
                // DoesNotExist
                SAGA_THROW_VERBATIM(this_.get_target_object(),
                    "attribute '" + key + "' does not exist", 
                    saga::DoesNotExist);
            }
            return this_.get_attr()->attribute_is_writable (key, sync);
        }
    };
    
    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::attribute_is_writablepriv (
        Derived const& this_, std::string const& key) 
    {
        return dispatch_priv<Tag>::
            template call<attribute_is_writable_priv>(this_, key);
    }

    struct attribute_is_vector_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, std::string const& key, bool sync) 
        {
            if (!this_.attribute_exists(key))
            {
                // DoesNotExist
                SAGA_THROW_VERBATIM(this_.get_target_object(),
                    "attribute '" + key + "' does not exist", 
                    saga::DoesNotExist);
            }
            return this_.get_attr()->attribute_is_vector(key, sync);
        }  
    };

    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::attribute_is_vectorpriv (
        Derived const& this_, std::string const& key) 
    {
        return dispatch_priv<Tag>::
            template call<attribute_is_vector_priv>(this_, key);
    }

    struct attribute_is_removable_priv
    {
        template <typename Derived>
        static task
        call (Derived& this_, std::string const& key, bool sync) 
        {
            if (!this_.attribute_exists(key))
            {
                // DoesNotExist
                SAGA_THROW_VERBATIM(this_.get_target_object(),
                    "attribute '" + key + "' does not exist", 
                    saga::DoesNotExist);
            }
            return this_.get_attr()->attribute_is_extended(key, sync);
        }  
    };
    
    template <typename Derived, typename Tag>
    inline task
    attribute_priv<Derived, Tag>::attribute_is_removablepriv (
        Derived const& this_, std::string const& key) 
    {
        return dispatch_priv<Tag>::
            template call<attribute_is_removable_priv>(this_, key);
    }

    
}}   // namespace saga::detail

#endif // SAGA_SAGA_DETAIL_ATTRIBUTE_IMPL_HPP

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