/**
* Create an instance of the filter for a particular service
* within MaxScale.
*
* @param options The options for this filter
* @param params The array of name/value pair parameters for the filter
*
* @return The instance data for this new instance
*/
static FILTER *
createInstance(char **options, FILTER_PARAMETER **params)
{
int i;
TOPN_INSTANCE *my_instance;
if ((my_instance = calloc(1, sizeof(TOPN_INSTANCE))) != NULL)
{
my_instance->topN = 10;
my_instance->match = NULL;
my_instance->exclude = NULL;
my_instance->source = NULL;
my_instance->user = NULL;
my_instance->filebase = strdup("top");
for (i = 0; params && params[i]; i++)
{
if (!strcmp(params[i]->name, "count"))
{
my_instance->topN = atoi(params[i]->value);
}
else if (!strcmp(params[i]->name, "filebase"))
{
free(my_instance->filebase);
my_instance->filebase = strdup(params[i]->value);
}
else if (!strcmp(params[i]->name, "match"))
{
my_instance->match = strdup(params[i]->value);
}
else if (!strcmp(params[i]->name, "exclude"))
{
my_instance->exclude = strdup(params[i]->value);
}
else if (!strcmp(params[i]->name, "source"))
{
my_instance->source = strdup(params[i]->value);
}
else if (!strcmp(params[i]->name, "user"))
{
my_instance->user = strdup(params[i]->value);
}
else if (!filter_standard_parameter(params[i]->name))
{
MXS_ERROR("topfilter: Unexpected parameter '%s'.",
params[i]->name);
}
}
if (options)
{
MXS_ERROR("topfilter: Options are not supported by this "
" filter. They will be ignored.");
}
my_instance->sessions = 0;
if (my_instance->match &&
regcomp(&my_instance->re, my_instance->match, REG_ICASE))
{
MXS_ERROR("topfilter: Invalid regular expression '%s'"
" for the match parameter.",
my_instance->match);
free(my_instance->match);
free(my_instance->source);
free(my_instance->user);
free(my_instance->filebase);
free(my_instance);
return NULL;
}
if (my_instance->exclude &&
regcomp(&my_instance->exre, my_instance->exclude,
REG_ICASE))
{
MXS_ERROR("qlafilter: Invalid regular expression '%s'"
" for the nomatch paramter.\n",
my_instance->match);
regfree(&my_instance->re);
free(my_instance->match);
free(my_instance->source);
free(my_instance->user);
free(my_instance->filebase);
free(my_instance);
return NULL;
}
}
return(FILTER *) my_instance;
}
/**
* Create a new instance of the Lua filter.
*
* The global script will be loaded in this function and executed once on a global
* level before calling the createInstance function in the Lua script.
* @param options The options for this filter
* @param params Filter parameters
* @return The instance data for this new instance
*/
static FILTER *
createInstance(char **options, FILTER_PARAMETER **params)
{
LUA_INSTANCE *my_instance;
bool error = false;
if ((my_instance = (LUA_INSTANCE*) calloc(1, sizeof(LUA_INSTANCE))) == NULL)
{
return NULL;
}
spinlock_init(&my_instance->lock);
for (int i = 0; params[i] && !error; i++)
{
if (strcmp(params[i]->name, "global_script") == 0)
{
error = (my_instance->global_script = strdup(params[i]->value)) == NULL;
}
else if (strcmp(params[i]->name, "session_script") == 0)
{
error = (my_instance->session_script = strdup(params[i]->value)) == NULL;
}
else if (!filter_standard_parameter(params[i]->name))
{
MXS_ERROR("Unexpected parameter '%s'", params[i]->name);
error = true;
}
}
if (error)
{
free(my_instance->global_script);
free(my_instance->session_script);
free(my_instance);
return NULL;
}
if (my_instance->global_script)
{
if ((my_instance->global_lua_state = luaL_newstate()))
{
luaL_openlibs(my_instance->global_lua_state);
if (luaL_dofile(my_instance->global_lua_state, my_instance->global_script))
{
MXS_ERROR("luafilter: Failed to execute global script at '%s':%s.",
my_instance->global_script, lua_tostring(my_instance->global_lua_state, -1));
free(my_instance->global_script);
free(my_instance->session_script);
free(my_instance);
my_instance = NULL;
}
else if (my_instance->global_lua_state)
{
lua_getglobal(my_instance->global_lua_state, "createInstance");
if (lua_pcall(my_instance->global_lua_state, 0, 0, 0))
{
MXS_WARNING("luafilter: Failed to get global variable 'createInstance': %s."
" The createInstance entry point will not be called for the global script.",
lua_tostring(my_instance->global_lua_state, -1));
}
}
}
else
{
MXS_ERROR("Unable to initialize new Lua state.");
free(my_instance);
my_instance = NULL;
}
}
return(FILTER *) my_instance;
}
/**
* Create an instance of the filter for a particular service
* within MaxScale.
*
* @param options The options for this filter
* @param params The array of name/value pair parameters for the filter
*
* @return The instance data for this new instance
*/
static FILTER *
createInstance(char **options, FILTER_PARAMETER **params)
{
QLA_INSTANCE *my_instance;
int i;
if ((my_instance = calloc(1, sizeof(QLA_INSTANCE))) != NULL)
{
if (options){
my_instance->filebase = strdup(options[0]);
}else{
my_instance->filebase = strdup("qla");
}
my_instance->source = NULL;
my_instance->userName = NULL;
my_instance->match = NULL;
my_instance->nomatch = NULL;
if (params)
{
for (i = 0; params[i]; i++)
{
if (!strcmp(params[i]->name, "match"))
{
my_instance->match = strdup(params[i]->value);
}
else if (!strcmp(params[i]->name, "exclude"))
{
my_instance->nomatch = strdup(params[i]->value);
}
else if (!strcmp(params[i]->name, "source"))
my_instance->source = strdup(params[i]->value);
else if (!strcmp(params[i]->name, "user"))
my_instance->userName = strdup(params[i]->value);
else if (!strcmp(params[i]->name, "filebase"))
{
if (my_instance->filebase){
free(my_instance->filebase);
my_instance->filebase = NULL;
}
my_instance->filebase = strdup(params[i]->value);
}
else if (!filter_standard_parameter(params[i]->name))
{
LOGIF(LE, (skygw_log_write_flush(
LOGFILE_ERROR,
"qlafilter: Unexpected parameter '%s'.\n",
params[i]->name)));
}
}
}
my_instance->sessions = 0;
if (my_instance->match &&
regcomp(&my_instance->re, my_instance->match, REG_ICASE))
{
LOGIF(LE, (skygw_log_write_flush(LOGFILE_ERROR,
"qlafilter: Invalid regular expression '%s'"
" for the match parameter.\n",
my_instance->match)));
free(my_instance->match);
free(my_instance->source);
if(my_instance->filebase){
free(my_instance->filebase);
}
free(my_instance);
return NULL;
}
if (my_instance->nomatch &&
regcomp(&my_instance->nore, my_instance->nomatch,
REG_ICASE))
{
LOGIF(LE, (skygw_log_write_flush(LOGFILE_ERROR,
"qlafilter: Invalid regular expression '%s'"
" for the nomatch paramter.\n",
my_instance->match)));
if (my_instance->match)
regfree(&my_instance->re);
free(my_instance->match);
free(my_instance->source);
if(my_instance->filebase){
free(my_instance->filebase);
}
free(my_instance);
return NULL;
}
}
return (FILTER *)my_instance;
}
/**
* Create an instance of the filter for a particular service
* within MaxScale.
*
* @param options The options for this filter
* @param params The array of name/value pair parameters for the filter
*
* @return The instance data for this new instance
*/
static FILTER *
createInstance(char **options, FILTER_PARAMETER **params)
{
TEE_INSTANCE *my_instance;
int i;
if ((my_instance = calloc(1, sizeof(TEE_INSTANCE))) != NULL)
{
if (options)
{
MXS_ERROR("tee: The tee filter has been passed an option, "
"this filter does not support any options.");
}
my_instance->service = NULL;
my_instance->source = NULL;
my_instance->userName = NULL;
my_instance->match = NULL;
my_instance->nomatch = NULL;
if (params)
{
for (i = 0; params[i]; i++)
{
if (!strcmp(params[i]->name, "service"))
{
if ((my_instance->service = service_find(params[i]->value)) == NULL)
{
MXS_ERROR("tee: service '%s' not found.\n",
params[i]->value);
}
}
else if (!strcmp(params[i]->name, "match"))
{
my_instance->match = strdup(params[i]->value);
}
else if (!strcmp(params[i]->name, "exclude"))
{
my_instance->nomatch = strdup(params[i]->value);
}
else if (!strcmp(params[i]->name, "source"))
{
my_instance->source = strdup(params[i]->value);
}
else if (!strcmp(params[i]->name, "user"))
{
my_instance->userName = strdup(params[i]->value);
}
else if (!filter_standard_parameter(params[i]->name))
{
MXS_ERROR("tee: Unexpected parameter '%s'.",
params[i]->name);
}
}
}
if (my_instance->service == NULL)
{
free(my_instance->match);
free(my_instance->source);
free(my_instance);
return NULL;
}
if (my_instance->match &&
regcomp(&my_instance->re, my_instance->match, REG_ICASE))
{
MXS_ERROR("tee: Invalid regular expression '%s'"
" for the match parameter.",
my_instance->match);
free(my_instance->match);
free(my_instance->source);
free(my_instance);
return NULL;
}
if (my_instance->nomatch &&
regcomp(&my_instance->nore, my_instance->nomatch,
REG_ICASE))
{
MXS_ERROR("tee: Invalid regular expression '%s'"
" for the nomatch paramter.\n",
my_instance->match);
if (my_instance->match)
regfree(&my_instance->re);
free(my_instance->match);
free(my_instance->source);
free(my_instance);
return NULL;
}
}
return(FILTER *) my_instance;
}
