lnav/src/json_op.hh
2014-05-05 06:44:58 -07:00

82 lines
2.8 KiB
C++

/**
* Copyright (c) 2014, Timothy Stack
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Timothy Stack nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TIMOTHY STACK AND CONTRIBUTORS ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @file json_op.hh
*/
#ifndef __json_op_hh
#define __json_op_hh
#include <sys/types.h>
#include <string>
#include "json_ptr.hh"
#include "yajlpp.hh"
class json_op {
static int handle_null(void *ctx);
static int handle_boolean(void *ctx, int boolVal);
static int handle_number(void *ctx, const char *numberVal, size_t numberLen);
static int handle_string(void *ctx, const unsigned char * stringVal, size_t len);
static int handle_start_map(void *ctx);
static int handle_map_key(void *ctx, const unsigned char * key, size_t len);
static int handle_end_map(void *ctx);
static int handle_start_array(void *ctx);
static int handle_end_array(void *ctx);
public:
const static yajl_callbacks gen_callbacks;
const static yajl_callbacks ptr_callbacks;
json_op(json_ptr &ptr)
: jo_depth(0),
jo_array_index(-1),
jo_ptr(ptr),
jo_ptr_data(NULL),
jo_ptr_error_code(0) {
memset(&this->jo_ptr_callbacks, 0, sizeof(this->jo_ptr_callbacks));
};
bool check_index(bool primitive = true) {
return this->jo_ptr.at_index(this->jo_depth, this->jo_array_index, primitive);
};
int jo_depth;
int jo_array_index;
json_ptr jo_ptr;
yajl_callbacks jo_ptr_callbacks;
void *jo_ptr_data;
std::string jo_ptr_error;
int jo_ptr_error_code;
};
#endif