diff options
Diffstat (limited to 'src/yajlpp/json_op.cc')
| -rw-r--r-- | src/yajlpp/json_op.cc | 316 |
1 files changed, 316 insertions, 0 deletions
diff --git a/src/yajlpp/json_op.cc b/src/yajlpp/json_op.cc new file mode 100644 index 0000000..046f223 --- /dev/null +++ b/src/yajlpp/json_op.cc @@ -0,0 +1,316 @@ +/** + * 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.cc + */ + +#include "json_op.hh" + +#include "base/lnav_log.hh" +#include "config.h" +#include "yajl/api/yajl_gen.h" + +static int +gen_handle_start_map(void* ctx) +{ + json_op* jo = (json_op*) ctx; + yajl_gen gen = (yajl_gen) jo->jo_ptr_data; + + jo->jo_ptr_error_code = yajl_gen_map_open(gen); + + return jo->jo_ptr_error_code == yajl_gen_status_ok; +} + +static int +gen_handle_map_key(void* ctx, const unsigned char* key, size_t len) +{ + json_op* jo = (json_op*) ctx; + yajl_gen gen = (yajl_gen) jo->jo_ptr_data; + + jo->jo_ptr_error_code = yajl_gen_string(gen, key, len); + + return jo->jo_ptr_error_code == yajl_gen_status_ok; +} + +static int +gen_handle_end_map(void* ctx) +{ + json_op* jo = (json_op*) ctx; + yajl_gen gen = (yajl_gen) jo->jo_ptr_data; + + jo->jo_ptr_error_code = yajl_gen_map_close(gen); + + return jo->jo_ptr_error_code == yajl_gen_status_ok; +} + +static int +gen_handle_null(void* ctx) +{ + json_op* jo = (json_op*) ctx; + yajl_gen gen = (yajl_gen) jo->jo_ptr_data; + + jo->jo_ptr_error_code = yajl_gen_null(gen); + + return jo->jo_ptr_error_code == yajl_gen_status_ok; +} + +static int +gen_handle_boolean(void* ctx, int boolVal) +{ + json_op* jo = (json_op*) ctx; + yajl_gen gen = (yajl_gen) jo->jo_ptr_data; + + jo->jo_ptr_error_code = yajl_gen_bool(gen, boolVal); + + return jo->jo_ptr_error_code == yajl_gen_status_ok; +} + +static int +gen_handle_number(void* ctx, const char* numberVal, size_t numberLen) +{ + json_op* jo = (json_op*) ctx; + yajl_gen gen = (yajl_gen) jo->jo_ptr_data; + + jo->jo_ptr_error_code = yajl_gen_number(gen, numberVal, numberLen); + + return jo->jo_ptr_error_code == yajl_gen_status_ok; +} + +static int +gen_handle_string(void* ctx, const unsigned char* stringVal, size_t len) +{ + json_op* jo = (json_op*) ctx; + yajl_gen gen = (yajl_gen) jo->jo_ptr_data; + + jo->jo_ptr_error_code = yajl_gen_string(gen, stringVal, len); + + return jo->jo_ptr_error_code == yajl_gen_status_ok; +} + +static int +gen_handle_start_array(void* ctx) +{ + json_op* jo = (json_op*) ctx; + yajl_gen gen = (yajl_gen) jo->jo_ptr_data; + + jo->jo_ptr_error_code = yajl_gen_array_open(gen); + + return jo->jo_ptr_error_code == yajl_gen_status_ok; +} + +static int +gen_handle_end_array(void* ctx) +{ + json_op* jo = (json_op*) ctx; + yajl_gen gen = (yajl_gen) jo->jo_ptr_data; + + jo->jo_ptr_error_code = yajl_gen_array_close(gen); + + return jo->jo_ptr_error_code == yajl_gen_status_ok; +} + +const yajl_callbacks json_op::gen_callbacks = { + gen_handle_null, + gen_handle_boolean, + nullptr, + nullptr, + gen_handle_number, + gen_handle_string, + gen_handle_start_map, + gen_handle_map_key, + gen_handle_end_map, + gen_handle_start_array, + gen_handle_end_array, +}; + +const yajl_callbacks json_op::ptr_callbacks = { + handle_null, + handle_boolean, + nullptr, + nullptr, + handle_number, + handle_string, + handle_start_map, + handle_map_key, + handle_end_map, + handle_start_array, + handle_end_array, +}; + +int +json_op::handle_null(void* ctx) +{ + json_op* jo = (json_op*) ctx; + int retval = 1; + + if (jo->check_index()) { + if (jo->jo_ptr_callbacks.yajl_null != nullptr) { + retval = jo->jo_ptr_callbacks.yajl_null(ctx); + } + } + + return retval; +} + +int +json_op::handle_boolean(void* ctx, int boolVal) +{ + json_op* jo = (json_op*) ctx; + int retval = 1; + + if (jo->check_index()) { + if (jo->jo_ptr_callbacks.yajl_boolean != nullptr) { + retval = jo->jo_ptr_callbacks.yajl_boolean(ctx, boolVal); + } + } + + return retval; +} + +int +json_op::handle_number(void* ctx, const char* numberVal, size_t numberLen) +{ + json_op* jo = (json_op*) ctx; + int retval = 1; + + if (jo->check_index()) { + if (jo->jo_ptr_callbacks.yajl_number != nullptr) { + retval + = jo->jo_ptr_callbacks.yajl_number(ctx, numberVal, numberLen); + } + } + + return retval; +} + +int +json_op::handle_string(void* ctx, + const unsigned char* stringVal, + size_t stringLen) +{ + json_op* jo = (json_op*) ctx; + int retval = 1; + + if (jo->check_index()) { + if (jo->jo_ptr_callbacks.yajl_string != nullptr) { + retval + = jo->jo_ptr_callbacks.yajl_string(ctx, stringVal, stringLen); + } + } + + return retval; +} + +int +json_op::handle_start_map(void* ctx) +{ + json_op* jo = (json_op*) ctx; + int retval = 1; + + if (jo->check_index(false)) { + if (jo->jo_ptr_callbacks.yajl_start_map != nullptr) { + retval = jo->jo_ptr_callbacks.yajl_start_map(ctx); + } + } + + if (!jo->jo_ptr.expect_map(jo->jo_depth, jo->jo_array_index)) { + retval = 0; + } + + return retval; +} + +int +json_op::handle_map_key(void* ctx, const unsigned char* key, size_t len) +{ + json_op* jo = (json_op*) ctx; + int retval = 1; + + if (jo->check_index(false)) { + if (jo->jo_ptr_callbacks.yajl_map_key != nullptr) { + retval = jo->jo_ptr_callbacks.yajl_map_key(ctx, key, len); + } + } + + if (!jo->jo_ptr.at_key(jo->jo_depth, (const char*) key, len)) { + retval = 0; + } + + return retval; +} + +int +json_op::handle_end_map(void* ctx) +{ + json_op* jo = (json_op*) ctx; + int retval = 1; + + if (jo->check_index()) { + if (jo->jo_ptr_callbacks.yajl_end_map != nullptr) { + retval = jo->jo_ptr_callbacks.yajl_end_map(ctx); + } + } + + jo->jo_ptr.exit_container(jo->jo_depth, jo->jo_array_index); + + return retval; +} + +int +json_op::handle_start_array(void* ctx) +{ + json_op* jo = (json_op*) ctx; + int retval = 1; + + if (jo->check_index(false)) { + if (jo->jo_ptr_callbacks.yajl_start_array != nullptr) { + retval = jo->jo_ptr_callbacks.yajl_start_array(ctx); + } + } + + jo->jo_ptr.expect_array(jo->jo_depth, jo->jo_array_index); + + return retval; +} + +int +json_op::handle_end_array(void* ctx) +{ + json_op* jo = (json_op*) ctx; + int retval = 1; + + if (jo->check_index()) { + if (jo->jo_ptr_callbacks.yajl_end_array != nullptr) { + retval = jo->jo_ptr_callbacks.yajl_end_array(ctx); + } + } + + jo->jo_ptr.exit_container(jo->jo_depth, jo->jo_array_index); + + return retval; +} |