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Enhance generic configuration parser

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12493 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Mathieu Rene 2009-03-07 02:11:16 +00:00
parent 3ef78db855
commit b59ad5e456
2 changed files with 110 additions and 19 deletions
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45
src/include/switch_xml_config.h
View File

@ -94,12 +94,35 @@ struct switch_xml_config_item {
void *defaultvalue; /*< Default value */
void *data; /*< Custom data (depending on the type) */
switch_xml_config_callback_t function; /*< Callback to be called after the var is parsed */
char *syntax; /*< Optional syntax documentation for this setting */
char *helptext; /*< Optional documentation text for this setting */
};
#define SWITCH_CONFIG_ITEM(_key, _type, _flags, _ptr, _defaultvalue, _data) { _key, _type, _flags, _ptr, _defaultvalue, _data, NULL }
#define SWITCH_CONFIG_ITEM_STRING_STRDUP(_key, _flags, _ptr, _defaultvalue) { _key, SWITCH_CONFIG_STRING, _flags, _ptr, _defaultvalue, &switch_config_string_strdup, NULL }
#define SWITCH_CONFIG_ITEM_CALLBACK(_key, _type, _flags, _ptr, _defaultvalue, _data, _functiondata) { _key, _type, _flags, _ptr, _defaultvalue, _functiondata, _data }
#define SWITCH_CONFIG_ITEM_END() { NULL, SWITCH_CONFIG_LAST, 0, NULL ,NULL, NULL, NULL }
#define SWITCH_CONFIG_ITEM(_key, _type, _flags, _ptr, _defaultvalue, _data, _syntax, _helptext) { _key, _type, _flags, _ptr, _defaultvalue, _data, NULL, _syntax, _helptext }
#define SWITCH_CONFIG_ITEM_STRING_STRDUP(_key, _flags, _ptr, _defaultvalue, _syntax, _helptext) { _key, SWITCH_CONFIG_STRING, _flags, _ptr, _defaultvalue, &switch_config_string_strdup, NULL, _helptext}
#define SWITCH_CONFIG_ITEM_CALLBACK(_key, _type, _flags, _ptr, _defaultvalue, _data, _functiondata, _syntax, _helptext) { _key, _type, _flags, _ptr, _defaultvalue, _functiondata, _data, _helptext}
#define SWITCH_CONFIG_ITEM_END() { NULL, SWITCH_CONFIG_LAST, 0, NULL ,NULL, NULL, NULL, NULL, NULL }
/*!
* \brief Gets the int representation of an enum
* \param enum_options the switch_xml_config_enum_item_t array for this enum
* \param value string value to search
*/
SWITCH_DECLARE(switch_status_t) switch_xml_config_enum_str2int(switch_xml_config_enum_item_t *enum_options, const char *value, int *out);
/*!
* \brief Gets the string representation of an enum
* \param enum_options the switch_xml_config_enum_item_t array for this enum
* \param value int value to search
*/
SWITCH_DECLARE(const char*) switch_xml_config_enum_int2str(switch_xml_config_enum_item_t *enum_options, int value);
/*!
* \brief Prints out an item's documentation on the console
* \param level loglevel to use
* \param item item which the doc should be printed
*/
SWITCH_DECLARE(void) switch_xml_config_item_print_doc(int level, switch_xml_config_item_t *item);
/*!
* \brief Parses all the xml elements, following a ruleset defined by an array of switch_xml_config_item_t
@ -108,7 +131,15 @@ struct switch_xml_config_item {
* \param instructions instrutions on how to parse the elements
* \see switch_xml_config_item_t
*/
SWITCH_DECLARE(switch_status_t) switch_xml_config_parse(switch_xml_t xml, int reload, switch_xml_config_item_t *instructions);
SWITCH_DECLARE(switch_status_t) switch_xml_config_parse(switch_xml_t xml, switch_bool_t reload, switch_xml_config_item_t *instructions);
/*!
* \brief Parses a module's settings
* \param reload true to skip all non-reloadable options
* \param file the configuration file to look for
* \param instructions the instructions
*/
SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_module_settings(const char *file, switch_bool_t reload, switch_xml_config_item_t *instructions);
/*!
* \brief Parses all of an event's elements, following a ruleset defined by an array of switch_xml_config_item_t
@ -117,7 +148,7 @@ SWITCH_DECLARE(switch_status_t) switch_xml_config_parse(switch_xml_t xml, int re
* \param instructions instrutions on how to parse the elements
* \see switch_xml_config_item_t
*/
SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_event(switch_event_t *event, int count, int reload, switch_xml_config_item_t *instructions);
SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_event(switch_event_t *event, int count, switch_bool_t reload, switch_xml_config_item_t *instructions);
/*!
* \brief Parses a list of xml elements into an event
@ -128,12 +159,12 @@ SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_event(switch_event_t *ev
*/
SWITCH_DECLARE(switch_size_t) switch_event_import_xml(switch_xml_t xml, const char *keyname, const char *valuename, switch_event_t **event);
/*!
* \brief Free any memory allocated by the configuration
* \param instructions instrutions on how to parse the elements
*/
SWITCH_DECLARE(void) switch_xml_config_cleanup(switch_xml_config_item_t *instructions);
#endif /* !defined(SWITCH_XML_CONFIG_H) */
/* For Emacs:

84
src/switch_xml_config.c
View File

@ -34,6 +34,17 @@
SWITCH_DECLARE_DATA switch_xml_config_string_options_t switch_config_string_strdup = { NULL, 0, NULL };
static switch_xml_config_enum_item_t switch_config_types_enum[] = {
{"int", SWITCH_CONFIG_INT },
{"string", SWITCH_CONFIG_STRING },
{"bool", SWITCH_CONFIG_BOOL },
{"custom", SWITCH_CONFIG_CUSTOM },
{"enum", SWITCH_CONFIG_ENUM },
{"flag", SWITCH_CONFIG_FLAG },
{"flagarray",SWITCH_CONFIG_FLAGARRAY},
{ NULL, 0 }
};
SWITCH_DECLARE(switch_size_t) switch_event_import_xml(switch_xml_t xml, const char *keyname, const char *valuename, switch_event_t **event)
{
switch_xml_t node;
@ -57,7 +68,35 @@ SWITCH_DECLARE(switch_size_t) switch_event_import_xml(switch_xml_t xml, const ch
return count;
}
SWITCH_DECLARE(switch_status_t) switch_xml_config_parse(switch_xml_t xml, int reload, switch_xml_config_item_t *instructions)
SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_module_settings(const char *file, switch_bool_t reload, switch_xml_config_item_t *instructions)
{
switch_xml_t cfg, xml, settings;
switch_status_t status = SWITCH_STATUS_SUCCESS;
if (!(xml = switch_xml_open_cfg(file, &cfg, NULL))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Could not open %s\n", file);
return SWITCH_STATUS_FALSE;
}
if ((settings = switch_xml_child(cfg, "settings"))) {
status = switch_xml_config_parse(switch_xml_child(settings, "param"), reload, instructions);
}
switch_xml_free(xml);
return status;
}
SWITCH_DECLARE(void) switch_xml_config_item_print_doc(int level, switch_xml_config_item_t *item)
{
if (item->syntax && item->helptext) {
switch_log_printf(SWITCH_CHANNEL_LOG_CLEAN, level, "Item name: [%s]\nType: %s (%s)\nSyntax: %s\nHelp: %s\n\n",
item->key, switch_xml_config_enum_int2str(switch_config_types_enum, item->type),
switch_test_flag(item, CONFIG_REQUIRED) ? "required" : "optional", item->syntax, item->helptext);
}
}
SWITCH_DECLARE(switch_status_t) switch_xml_config_parse(switch_xml_t xml, switch_bool_t reload, switch_xml_config_item_t *instructions)
{
switch_event_t *event = NULL;
switch_status_t result;
@ -72,7 +111,29 @@ SWITCH_DECLARE(switch_status_t) switch_xml_config_parse(switch_xml_t xml, int re
return result;
}
SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_event(switch_event_t *event, int count, int reload, switch_xml_config_item_t *instructions)
SWITCH_DECLARE(switch_status_t) switch_xml_config_enum_str2int(switch_xml_config_enum_item_t *enum_options, const char *value, int *out)
{
for (;enum_options->key; enum_options++) {
if (!strcasecmp(value, enum_options->key)) {
*out = enum_options->value;
return SWITCH_STATUS_SUCCESS;
}
}
return SWITCH_STATUS_FALSE;
}
SWITCH_DECLARE(const char*) switch_xml_config_enum_int2str(switch_xml_config_enum_item_t *enum_options, int value)
{
for (;enum_options->key; enum_options++) {
if (value == enum_options->value) {
return enum_options->key;
}
}
return NULL;
}
SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_event(switch_event_t *event, int count, switch_bool_t reload, switch_xml_config_item_t *instructions)
{
switch_xml_config_item_t *item;
int matched_count = 0;
@ -142,9 +203,9 @@ SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_event(switch_event_t *ev
const char *newstring = NULL;
if (!string_options) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Missing mandatory switch_xml_config_string_options_t structure for parameter [%s], skipping!\n",
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Missing mandatory switch_xml_config_string_options_t structure for parameter [%s], skipping!\n",
item->key);
continue;
return SWITCH_STATUS_FALSE;
}
/* Perform validation */
@ -155,7 +216,8 @@ SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_event(switch_event_t *ev
} else {
newstring = (char*)item->defaultvalue; /* Regex failed */
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid value [%s] for parameter [%s], setting default [%s]\n",
value, item->key, newstring);
value, item->key, newstring ? newstring : "(null)");
switch_xml_config_item_print_doc(SWITCH_LOG_ERROR, item);
}
} else {
newstring = value; /* No validation */
@ -204,6 +266,7 @@ SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_event(switch_event_t *ev
newval = (switch_bool_t)(intptr_t)item->defaultvalue;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid value [%s] for parameter [%s], setting default [%s]\n",
value, item->key, newval ? "true" : "false");
switch_xml_config_item_print_doc(SWITCH_LOG_ERROR, item);
} else {
newval = (switch_bool_t)(intptr_t)item->defaultvalue;
}
@ -221,21 +284,18 @@ SWITCH_DECLARE(switch_status_t) switch_xml_config_parse_event(switch_event_t *ev
switch_xml_config_enum_item_t *enum_options = (switch_xml_config_enum_item_t*)item->data;
int *dest = (int*)item->ptr;
int newval = 0;
switch_status_t lookup_result;
if (value) {
for (;enum_options->key; enum_options++) {
if (!strcasecmp(value, enum_options->key)) {
newval = enum_options->value;
break;
}
}
lookup_result = switch_xml_config_enum_str2int(enum_options, value, &newval);
} else {
newval = (int)(intptr_t)item->defaultvalue;
}
if (!enum_options->key) { /* if (!found) */
if (value != SWITCH_STATUS_SUCCESS) {
newval = (int)(intptr_t)item->defaultvalue;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid value [%s] for parameter [%s]\n", value, item->key);
switch_xml_config_item_print_doc(SWITCH_LOG_ERROR, item);
}
if (*dest != newval) {