Doug Anson / endpoint_core

Core Base Classes for the Light Endpoints

Dependencies:   BufferedSerial

Dependents:   mbed_mqtt_endpoint_ublox_ethernet mbed_mqtt_endpoint_ublox_cellular mbed_nsp_endpoint_ublox_cellular mbed_nsp_endpoint_ublox_ethernet ... more

Preferences.cpp@152:659a8ebcbe93, 2014-04-02 (annotated)

Committer:
ansond
Date:
Wed Apr 02 16:08:54 2014 +0000
Revision:
152:659a8ebcbe93
Parent:
135:7f3f963cd159
Child:
153:8b32ee1ed6d6
updates cell modem

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ansond 112:1fb53d4729af 1 /* Copyright C2013 Doug Anson, MIT License
ansond 112:1fb53d4729af 2 *
ansond 112:1fb53d4729af 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
ansond 112:1fb53d4729af 4 * and associated documentation files the "Software", to deal in the Software without restriction,
ansond 112:1fb53d4729af 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
ansond 112:1fb53d4729af 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
ansond 112:1fb53d4729af 7 * furnished to do so, subject to the following conditions:
ansond 112:1fb53d4729af 8 *
ansond 112:1fb53d4729af 9 * The above copyright notice and this permission notice shall be included in all copies or
ansond 112:1fb53d4729af 10 * substantial portions of the Software.
ansond 112:1fb53d4729af 11 *
ansond 112:1fb53d4729af 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
ansond 112:1fb53d4729af 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
ansond 112:1fb53d4729af 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
ansond 112:1fb53d4729af 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ansond 112:1fb53d4729af 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
ansond 112:1fb53d4729af 17 */
ansond 112:1fb53d4729af 18
ansond 112:1fb53d4729af 19 #include "mbed.h"
ansond 112:1fb53d4729af 20 #include "Preferences.h"
ansond 112:1fb53d4729af 21
ansond 152:659a8ebcbe93 22 #ifndef _ENDPOINT_UBLOX_PLATFORM
ansond 116:428281cb5066 23 LocalFileSystem local("local");
ansond 152:659a8ebcbe93 24 #endif
ansond 116:428281cb5066 25
ansond 112:1fb53d4729af 26 // default constructor
ansond 135:7f3f963cd159 27 Preferences::Preferences(ErrorHandler *error_handler) : BaseClass(error_handler,NULL) {
ansond 112:1fb53d4729af 28 this->initialize();
ansond 112:1fb53d4729af 29 }
ansond 112:1fb53d4729af 30
ansond 112:1fb53d4729af 31 // destructor
ansond 112:1fb53d4729af 32 Preferences::~Preferences() {
ansond 112:1fb53d4729af 33 }
ansond 112:1fb53d4729af 34
ansond 112:1fb53d4729af 35 // initialize the preferences from the preferences file
ansond 112:1fb53d4729af 36 bool Preferences::initialize() {
ansond 123:b0d950f80ed9 37 char name[PREFERENCE_NAME_LEN+1];
ansond 123:b0d950f80ed9 38 char value[PREFERENCE_VALUE_LEN+1];
ansond 118:c8a80adfe90d 39 char buffer[PREFERENCE_NAME_LEN + PREFERENCE_NAME_LEN + 10];
ansond 112:1fb53d4729af 40 bool success = true;
ansond 112:1fb53d4729af 41
ansond 118:c8a80adfe90d 42 // initialize the memory buffers and count
ansond 118:c8a80adfe90d 43 for(int i=0;i<MAX_NUM_PREFERENCES;++i) {
ansond 118:c8a80adfe90d 44 memset(this->m_names[i],0,PREFERENCE_NAME_LEN+1);
ansond 118:c8a80adfe90d 45 memset(this->m_values[i],0,PREFERENCE_VALUE_LEN+1);
ansond 118:c8a80adfe90d 46 }
ansond 118:c8a80adfe90d 47 this->m_num_preferences = 0;
ansond 152:659a8ebcbe93 48
ansond 152:659a8ebcbe93 49 #ifndef _ENDPOINT_UBLOX_PLATFORM
ansond 118:c8a80adfe90d 50 // read and open the config file
ansond 118:c8a80adfe90d 51 FILE *fp = fopen(PREFERENCES_FILE,"r");
ansond 118:c8a80adfe90d 52 if (fp != NULL) {
ansond 118:c8a80adfe90d 53 // read in the first line
ansond 118:c8a80adfe90d 54 memset(buffer,0,PREFERENCE_NAME_LEN + PREFERENCE_NAME_LEN + 10);
ansond 118:c8a80adfe90d 55 int n = fscanf(fp,"%s",buffer);
ansond 118:c8a80adfe90d 56
ansond 118:c8a80adfe90d 57 // loop and read each line
ansond 118:c8a80adfe90d 58 while(n != EOF) {
ansond 118:c8a80adfe90d 59 // replace the equals sign with a space
ansond 118:c8a80adfe90d 60 for(int i=0;i<strlen(buffer);++i) if (buffer[i] == '=') buffer[i] = ' ';
ansond 118:c8a80adfe90d 61
ansond 118:c8a80adfe90d 62 // parse
ansond 123:b0d950f80ed9 63 memset(name,0,PREFERENCE_NAME_LEN+1);
ansond 123:b0d950f80ed9 64 memset(value,0,PREFERENCE_VALUE_LEN+1);
ansond 123:b0d950f80ed9 65 sscanf(buffer,"%s%s",name,value);
ansond 123:b0d950f80ed9 66 strcpy(this->m_names[this->m_num_preferences],name);
ansond 123:b0d950f80ed9 67 strcpy(this->m_values[this->m_num_preferences],value);
ansond 118:c8a80adfe90d 68
ansond 118:c8a80adfe90d 69 // DEBUG
ansond 118:c8a80adfe90d 70 this->logger()->log("Installed Preference: %s=%s",this->m_names[this->m_num_preferences],this->m_values[this->m_num_preferences]);
ansond 118:c8a80adfe90d 71
ansond 118:c8a80adfe90d 72 // increment the tally
ansond 118:c8a80adfe90d 73 ++this->m_num_preferences;
ansond 118:c8a80adfe90d 74
ansond 118:c8a80adfe90d 75 // reset the buffer and read in another line
ansond 118:c8a80adfe90d 76 memset(buffer,0,PREFERENCE_NAME_LEN + PREFERENCE_NAME_LEN + 10);
ansond 118:c8a80adfe90d 77 n = fscanf(fp,"%s",buffer);
ansond 112:1fb53d4729af 78 }
ansond 118:c8a80adfe90d 79
ansond 118:c8a80adfe90d 80 // close
ansond 118:c8a80adfe90d 81 fclose(fp);
ansond 118:c8a80adfe90d 82
ansond 118:c8a80adfe90d 83 // summary
ansond 118:c8a80adfe90d 84 this->logger()->log("Installed %d preferences",this->m_num_preferences);
ansond 112:1fb53d4729af 85 }
ansond 112:1fb53d4729af 86 else {
ansond 118:c8a80adfe90d 87 // unable to open the preferences file - not loaded
ansond 118:c8a80adfe90d 88 this->logger()->log("Unable to open preferences file %s... Preferences not loaded.",PREFERENCES_FILE);
ansond 112:1fb53d4729af 89 success = false;
ansond 112:1fb53d4729af 90 }
ansond 152:659a8ebcbe93 91 #else
ansond 152:659a8ebcbe93 92 success = true;
ansond 152:659a8ebcbe93 93 #endif
ansond 112:1fb53d4729af 94
ansond 112:1fb53d4729af 95 // return our status
ansond 112:1fb53d4729af 96 return success;
ansond 112:1fb53d4729af 97 }
ansond 112:1fb53d4729af 98
ansond 120:edf33bd41e4f 99 // HACK: fix up coords because IOC's POINT() macro does not like commas
ansond 120:edf33bd41e4f 100 void Preferences::fixCoordsForIOC() {
ansond 121:40bb95a10a0e 101 int index = this->indexOfPreference("coords");
ansond 120:edf33bd41e4f 102 if (index >= 0) {
ansond 120:edf33bd41e4f 103 // remove the comma...
ansond 120:edf33bd41e4f 104 for(int i=0;i<strlen(this->m_values[index]);++i) if (this->m_values[index][i] == ',') this->m_values[index][i] = ' ';
ansond 120:edf33bd41e4f 105 }
ansond 120:edf33bd41e4f 106 }
ansond 120:edf33bd41e4f 107
ansond 112:1fb53d4729af 108 // integer preference with defaults
ansond 112:1fb53d4729af 109 int Preferences::getIntPreference(char *name,int def_value) {\
ansond 112:1fb53d4729af 110 int int_value = def_value;
ansond 112:1fb53d4729af 111 char buffer[PREFERENCE_VALUE_LEN+1];
ansond 112:1fb53d4729af 112 memset(buffer,0,PREFERENCE_VALUE_LEN+1);
ansond 112:1fb53d4729af 113 char *value = this->getPreference(name,buffer,PREFERENCE_VALUE_LEN,NULL);
ansond 116:428281cb5066 114 if (value != NULL && strlen(value) > 0) sscanf(buffer,"%d",&int_value);
ansond 112:1fb53d4729af 115 return int_value;
ansond 112:1fb53d4729af 116 }
ansond 112:1fb53d4729af 117
ansond 112:1fb53d4729af 118 // boolean preference with defaults
ansond 112:1fb53d4729af 119 bool Preferences::getBooleanPreference(char *name,bool def_value) {
ansond 112:1fb53d4729af 120 bool bool_value = def_value;
ansond 112:1fb53d4729af 121 char buffer[PREFERENCE_VALUE_LEN+1];
ansond 112:1fb53d4729af 122 memset(buffer,0,PREFERENCE_VALUE_LEN+1);
ansond 112:1fb53d4729af 123 char *value = this->getPreference(name,buffer,PREFERENCE_VALUE_LEN,NULL);
ansond 112:1fb53d4729af 124 if (value != NULL && strcmp(value,"true") == 0) bool_value = true;
ansond 112:1fb53d4729af 125 if (value != NULL && strcmp(value,"false") == 0) bool_value = false;
ansond 112:1fb53d4729af 126 return bool_value;
ansond 112:1fb53d4729af 127 }
ansond 112:1fb53d4729af 128
ansond 112:1fb53d4729af 129 // string preference with defaults
ansond 112:1fb53d4729af 130 char *Preferences::getPreference(char *name,char *buffer,int buffer_length,char *def_value) {
ansond 118:c8a80adfe90d 131 char *value = NULL;
ansond 118:c8a80adfe90d 132
ansond 118:c8a80adfe90d 133 // clean the buffer
ansond 118:c8a80adfe90d 134 memset(buffer,0,buffer_length);
ansond 118:c8a80adfe90d 135
ansond 122:21be9cc9e63d 136 // DEBUG
ansond 122:21be9cc9e63d 137 //this->logger()->log("GET: %s DEFAULT: %s BUFFER_LEN=%d",name,def_value,buffer_length);
ansond 122:21be9cc9e63d 138
ansond 118:c8a80adfe90d 139 // get our index
ansond 118:c8a80adfe90d 140 int index = this->indexOfPreference(name);
ansond 118:c8a80adfe90d 141 if (index >= 0) {
ansond 118:c8a80adfe90d 142 // fill with our value
ansond 118:c8a80adfe90d 143 strncpy(buffer,this->m_values[index],this->min(buffer_length,strlen(this->m_values[index])));
ansond 118:c8a80adfe90d 144 value = buffer;
ansond 122:21be9cc9e63d 145 //this->logger()->log("Preference GET: %s=%s",name,value);
ansond 118:c8a80adfe90d 146 }
ansond 118:c8a80adfe90d 147 else {
ansond 118:c8a80adfe90d 148 // fill with the default
ansond 122:21be9cc9e63d 149 if (def_value != NULL) {
ansond 122:21be9cc9e63d 150 strncpy(buffer,def_value,this->min(buffer_length,strlen(def_value)));
ansond 122:21be9cc9e63d 151 value = buffer;
ansond 122:21be9cc9e63d 152 //this->logger()->log("Using Defaults for %s=%s",name,value);
ansond 122:21be9cc9e63d 153 }
ansond 122:21be9cc9e63d 154 else {
ansond 122:21be9cc9e63d 155 // no defaults
ansond 122:21be9cc9e63d 156 //this->logger()->log("No default for GET: %s",name);
ansond 122:21be9cc9e63d 157 value = buffer;
ansond 122:21be9cc9e63d 158 }
ansond 114:bd38ad417d6a 159 }
ansond 118:c8a80adfe90d 160
ansond 118:c8a80adfe90d 161 // return the value
ansond 118:c8a80adfe90d 162 return value;
ansond 118:c8a80adfe90d 163 }
ansond 118:c8a80adfe90d 164
ansond 118:c8a80adfe90d 165 // get the index of the named preference
ansond 118:c8a80adfe90d 166 int Preferences::indexOfPreference(char *name) {
ansond 118:c8a80adfe90d 167 bool found = false;
ansond 118:c8a80adfe90d 168 int index = -1;
ansond 118:c8a80adfe90d 169
ansond 118:c8a80adfe90d 170 // parameter check
ansond 118:c8a80adfe90d 171 if (name != NULL && strlen(name) > 0) {
ansond 118:c8a80adfe90d 172
ansond 118:c8a80adfe90d 173 // loop until we find the name.. then stop and record its index
ansond 118:c8a80adfe90d 174 for(int i=0;i<this->m_num_preferences && !found;++i) {
ansond 118:c8a80adfe90d 175 if (strcmp(name,this->m_names[i]) == 0) {
ansond 118:c8a80adfe90d 176 found = true;
ansond 118:c8a80adfe90d 177 index = i;
ansond 118:c8a80adfe90d 178 }
ansond 118:c8a80adfe90d 179 }
ansond 118:c8a80adfe90d 180 }
ansond 118:c8a80adfe90d 181
ansond 118:c8a80adfe90d 182 // return the index value
ansond 118:c8a80adfe90d 183 return index;
ansond 112:1fb53d4729af 184 }
ansond 135:7f3f963cd159 185
ansond 112:1fb53d4729af 186 // get our preference count
ansond 118:c8a80adfe90d 187 int Preferences::numPreferences() { return this->m_num_preferences; }
ansond 112:1fb53d4729af 188
ansond 112:1fb53d4729af 189 // min function
ansond 112:1fb53d4729af 190 int Preferences::min(int value1,int value2) {
ansond 112:1fb53d4729af 191 if (value1 < value2) return value1;
ansond 112:1fb53d4729af 192 return value2;
ansond 112:1fb53d4729af 193 }