Input::ReaderToStorage Class Reference

Reader for (slightly) modified input files. More...

#include <reader_to_storage.hh>

Collaboration diagram for Input::ReaderToStorage:

Public Member Functions
	ReaderToStorage (const FilePath &in_file, Type::TypeBase &root_type)
	Read a storage from input stream. More...
	ReaderToStorage (const string &default_str, Type::TypeBase &root_type, FileFormat format)
	Read a storage from string (e.g. complex default value). More...
template<class T >
T	get_root_interface () const
	Returns the root accessor. More...
	ReaderToStorage ()
	Default constructor. More...
void	read_stream (istream &in, const Type::TypeBase &root_type, FileFormat format)
	This method actually reads the given stream in. More...

Protected Member Functions
StorageBase *	get_storage ()
	Getter for root of the storage tree. More...

Protected Attributes
StorageBase *	storage_
	Storage of the read and checked input data. More...
const Type::TypeBase *	root_type_
	Root of the declaration tree of the data in the storage. More...

Friends
class	Type::Default
class	ReaderInternalBase

Detailed Description

Reader for (slightly) modified input files.

This class implements a reader of modified input file format (JSON or YAML). The modifications include shell-like comments (using hash '#' character), this is implemented in comment_filter.hh, optional quoting of keys in JSON objects that do not contain spaces, and possibility to use '=' instead of ':'. So you can write:

{ key1="text", key2=2, "key 3"=4 }

Note, however, that our input interface allows only C identifiers for keys. The reader use json_spirit library (based on Spirit parser from Boost) with slightly modified grammar.

The input file is at first read and parsed by json_spirit. Then ReaderToStorage pass through tree with parsed data along with passing through declaration tree. The input data are check against declaration and stored in the Storage tree.

Accessor to the root record is provided by ReaderToStorage::get_root_interface<T> method template.

Definition at line 96 of file reader_to_storage.hh.

Constructor & Destructor Documentation

Input::ReaderToStorage::ReaderToStorage	(	const FilePath &	in_file,
		Type::TypeBase &	root_type
	)

Read a storage from input stream.

Parameter root_type provides input type tree declaration. See read_from_stream for details.

Definition at line 58 of file reader_to_storage.cc.

Input::ReaderToStorage::ReaderToStorage	(	const string &	default_str,
		Type::TypeBase &	root_type,
		FileFormat	format
	)

Read a storage from string (e.g. complex default value).

Definition at line 87 of file reader_to_storage.cc.

Input::ReaderToStorage::ReaderToStorage

(

)

Default constructor.

Provides common initialization for public constructors.

Definition at line 51 of file reader_to_storage.cc.

Member Function Documentation

template<class T >

T Input::ReaderToStorage::get_root_interface

(

)

const

Returns the root accessor.

The template type T should correspond to the kind of the input type at root of the declaration tree.

Definition at line 150 of file reader_to_storage.cc.

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StorageBase * Input::ReaderToStorage::get_storage ( )

protected

Getter for root of the storage tree.

Definition at line 103 of file reader_to_storage.cc.

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void Input::ReaderToStorage::read_stream	(	istream &	in,
		const Type::TypeBase &	root_type,
		FileFormat	format
	)

This method actually reads the given stream in.

Checks the data just read against the declaration tree given by root_type, and store the data into private storage tree using StorageBase classes.

Definition at line 110 of file reader_to_storage.cc.

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Friends And Related Function Documentation

friend class ReaderInternalBase

friend

Definition at line 146 of file reader_to_storage.hh.

friend class Type::Default

friend

Definition at line 145 of file reader_to_storage.hh.

Member Data Documentation

const Type::TypeBase* Input::ReaderToStorage::root_type_

protected

Root of the declaration tree of the data in the storage.

Definition at line 143 of file reader_to_storage.hh.

StorageBase* Input::ReaderToStorage::storage_

protected

Storage of the read and checked input data.

Definition at line 140 of file reader_to_storage.hh.

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The documentation for this class was generated from the following files:

• /opt/flow123d/flow123d/src/input/reader_to_storage.hh
• /opt/flow123d/flow123d/src/input/reader_to_storage.cc