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lnav/src/yajlpp/drive_json_ptr_walk.cc

104 lines
3.5 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 drive_json_ptr_dump.cc
*/
#include <iostream>
#include <stdlib.h>
#include "base/lnav_log.hh"
#include "config.h"
#include "json_op.hh"
#include "json_ptr.hh"
#include "yajl/api/yajl_gen.h"
#include "yajlpp.hh"
int
main(int argc, char* argv[])
{
int retval = EXIT_SUCCESS;
yajl_status status;
json_ptr_walk jpw;
log_argv(argc, argv);
std::string json_input(std::istreambuf_iterator<char>(std::cin), {});
status = jpw.parse(json_input.c_str(), json_input.size());
if (status == yajl_status_error) {
fprintf(stderr,
"error:cannot parse JSON input -- %s\n",
jpw.jpw_error_msg.c_str());
return EXIT_FAILURE;
}
if (status == yajl_status_client_canceled) {
fprintf(stderr, "client cancel\n");
}
status = jpw.complete_parse();
if (status == yajl_status_error) {
fprintf(stderr,
"error:cannot parse JSON input -- %s\n",
jpw.jpw_error_msg.c_str());
return EXIT_FAILURE;
} else if (status == yajl_status_client_canceled) {
fprintf(stderr, "client cancel\n");
}
for (json_ptr_walk::walk_list_t::iterator iter = jpw.jpw_values.begin();
iter != jpw.jpw_values.end();
++iter)
{
printf("%s = %s\n", iter->wt_ptr.c_str(), iter->wt_value.c_str());
{
auto_mem<yajl_handle_t> parse_handle(yajl_free);
json_ptr jp(iter->wt_ptr.c_str());
json_op jo(jp);
yajlpp_gen gen;
jo.jo_ptr_callbacks = json_op::gen_callbacks;
jo.jo_ptr_data = gen.get_handle();
parse_handle.reset(
yajl_alloc(&json_op::ptr_callbacks, nullptr, &jo));
yajl_parse(parse_handle.in(),
(const unsigned char*) json_input.c_str(),
json_input.size());
yajl_complete_parse(parse_handle.in());
assert(iter->wt_value == gen.to_string_fragment().to_string());
}
}
return retval;
}