1/******************************************************************************
2 *
3 *  Copyright (C) 2015 Google, Inc.
4 *
5 *  Licensed under the Apache License, Version 2.0 (the "License");
6 *  you may not use this file except in compliance with the License.
7 *  You may obtain a copy of the License at:
8 *
9 *  http://www.apache.org/licenses/LICENSE-2.0
10 *
11 *  Unless required by applicable law or agreed to in writing, software
12 *  distributed under the License is distributed on an "AS IS" BASIS,
13 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 *  See the License for the specific language governing permissions and
15 *  limitations under the License.
16 *
17 ******************************************************************************/
18#define LOG_TAG "hash_map_utils"
19
20#include "osi/include/hash_map_utils.h"
21
22#include <base/logging.h>
23#include <string.h>
24
25#include "osi/include/allocator.h"
26#include "osi/include/log.h"
27#include "osi/include/osi.h"
28
29std::unordered_map<std::string, std::string>
30hash_map_utils_new_from_string_params(const char* params) {
31  CHECK(params != NULL);
32
33  std::unordered_map<std::string, std::string> map;
34
35  char* str = osi_strdup(params);
36  if (!str) return map;
37
38  LOG_VERBOSE(LOG_TAG, "%s: source string: '%s'", __func__, str);
39
40  // Parse |str| and add extracted key-and-value pair(s) in |map|.
41  int items = 0;
42  char* tmpstr;
43  char* kvpair = strtok_r(str, ";", &tmpstr);
44  while (kvpair && *kvpair) {
45    char* eq = strchr(kvpair, '=');
46
47    if (eq == kvpair) goto next_pair;
48
49    char* key;
50    char* value;
51    if (eq) {
52      key = osi_strndup(kvpair, eq - kvpair);
53
54      // The increment of |eq| moves |eq| to the beginning of the value.
55      ++eq;
56      value = (*eq != '\0') ? osi_strdup(eq) : osi_strdup("");
57    } else {
58      key = osi_strdup(kvpair);
59      value = osi_strdup("");
60    }
61
62    map[key] = value;
63
64    osi_free(key);
65    osi_free(value);
66
67    items++;
68  next_pair:
69    kvpair = strtok_r(NULL, ";", &tmpstr);
70  }
71
72  if (!items) LOG_VERBOSE(LOG_TAG, "%s: no items found in string\n", __func__);
73
74  osi_free(str);
75  return map;
76}
77
78void hash_map_utils_dump_string_keys_string_values(
79    std::unordered_map<std::string, std::string>& map) {
80  for (const auto& ptr : map) {
81    LOG_INFO(LOG_TAG, "key: '%s' value: '%s'\n", ptr.first.c_str(),
82             ptr.second.c_str());
83  }
84}
85