SerializableJsonFile.h

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/*
 * This program 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.
 *
 * Written (W) 2010 Soeren Sonnenburg
 * Copyright (C) 2010 Berlin Institute of Technology
 */
#ifndef __SERIALIZABLE_JSON_FILE_H__
#define __SERIALIZABLE_JSON_FILE_H__

#include <shogun/lib/config.h>

#ifdef HAVE_JSON

#include <json.h>

#include <shogun/io/SerializableFile.h>
#include <shogun/base/DynArray.h>

#define STR_KEY_TYPE               "type"
#define STR_KEY_DATA               "data"
#define STR_KEY_INSTANCE_NAME      "instance_name"
#define STR_KEY_INSTANCE           "instance"
#define STR_KEY_GENERIC_NAME       "generic_name"
#define STR_KEY_SPARSE_FEATURES    "features"
#define STR_KEY_SPARSE_FEATINDEX   "feat_index"
#define STR_KEY_SPARSE_ENTRY       "entry"

namespace shogun
{
#define IGNORE_IN_CLASSLIST
IGNORE_IN_CLASSLIST class CSerializableJsonFile
    :public CSerializableFile
{
    friend class SerializableJsonReader00;

    DynArray<json_object*> m_stack_stream;

    void init(const char* fname);
    void push_object(json_object* o);
    void pop_object();

    static bool get_object_any(json_object** dest, json_object* src,
                               const char* key);
    static bool get_object(json_object** dest, json_object* src,
                           const char* key, json_type t);

protected:
    virtual TSerializableReader* new_reader(
        char* dest_version, size_t n);

    virtual bool write_scalar_wrapped(
        const TSGDataType* type, const void* param);

    virtual bool write_cont_begin_wrapped(
        const TSGDataType* type, index_t len_real_y,
        index_t len_real_x);
    virtual bool write_cont_end_wrapped(
        const TSGDataType* type, index_t len_real_y,
        index_t len_real_x);

    virtual bool write_string_begin_wrapped(
        const TSGDataType* type, index_t length);
    virtual bool write_string_end_wrapped(
        const TSGDataType* type, index_t length);

    virtual bool write_stringentry_begin_wrapped(
        const TSGDataType* type, index_t y);
    virtual bool write_stringentry_end_wrapped(
        const TSGDataType* type, index_t y);

    virtual bool write_sparse_begin_wrapped(
        const TSGDataType* type, index_t length);
    virtual bool write_sparse_end_wrapped(
        const TSGDataType* type, index_t length);

    virtual bool write_sparseentry_begin_wrapped(
        const TSGDataType* type, const SGSparseVectorEntry<char>* first_entry,
        index_t feat_index, index_t y);
    virtual bool write_sparseentry_end_wrapped(
        const TSGDataType* type, const SGSparseVectorEntry<char>* first_entry,
        index_t feat_index, index_t y);

    virtual bool write_item_begin_wrapped(
        const TSGDataType* type, index_t y, index_t x);
    virtual bool write_item_end_wrapped(
        const TSGDataType* type, index_t y, index_t x);

    virtual bool write_sgserializable_begin_wrapped(
        const TSGDataType* type, const char* sgserializable_name,
        EPrimitiveType generic);
    virtual bool write_sgserializable_end_wrapped(
        const TSGDataType* type, const char* sgserializable_name,
        EPrimitiveType generic);

    virtual bool write_type_begin_wrapped(
        const TSGDataType* type, const char* name,
        const char* prefix);
    virtual bool write_type_end_wrapped(
        const TSGDataType* type, const char* name,
        const char* prefix);

public:
    explicit CSerializableJsonFile();

    explicit CSerializableJsonFile(const char* fname, char rw='r');

    virtual ~CSerializableJsonFile();

    virtual const char* get_name() const {
        return "SerializableJsonFile";
    }

    virtual void close();
    virtual bool is_opened();
};
}
#endif /* HAVE_JSON  */
#endif /* __SERIALIZABLE_JSON_FILE_H__  */