func init() {
Connectors["graphite"] = func(settings map[string]interface{}) (Connector, error) {
var err error
connector := &GraphiteConnector{
insecureTLS: false,
}
if connector.URL, err = config.GetString(settings, "url", true); err != nil {
return nil, err
}
if connector.insecureTLS, err = config.GetBool(settings, "allow_insecure_tls", false); err != nil {
return nil, err
}
if connector.timeout, err = config.GetFloat(settings, "timeout", false); err != nil {
return nil, err
}
if connector.timeout <= 0 {
connector.timeout = graphiteDefaultTimeout
}
return connector, nil
}
}
func init() {
Connectors["facette"] = func(name string, settings map[string]interface{}) (Connector, error) {
var err error
c := &FacetteConnector{name: name}
if c.upstream, err = config.GetString(settings, "upstream", true); err != nil {
return nil, err
}
if c.timeout, err = config.GetInt(settings, "timeout", false); err != nil {
return nil, err
}
if c.timeout <= 0 {
c.timeout = facetteDefaultTimeout
}
if c.insecureTLS, err = config.GetBool(settings, "allow_insecure_tls", false); err != nil {
return nil, err
}
if c.serverID, err = config.GetString(settings, "_id", true); err != nil {
return nil, err
}
return c, nil
}
}
func init() {
Connectors["influxdb"] = func(name string, settings map[string]interface{}) (Connector, error) {
var (
pattern string
err error
)
connector := &InfluxDBConnector{
name: name,
host: "localhost:8086",
username: "******",
password: "******",
series: make(map[string]map[string][2]string),
}
if connector.host, err = config.GetString(settings, "host", false); err != nil {
return nil, err
}
if connector.useTLS, err = config.GetBool(settings, "use_tls", false); err != nil {
return nil, err
}
if connector.username, err = config.GetString(settings, "username", false); err != nil {
return nil, err
}
if connector.password, err = config.GetString(settings, "password", false); err != nil {
return nil, err
}
if connector.database, err = config.GetString(settings, "database", true); err != nil {
return nil, err
}
if pattern, err = config.GetString(settings, "pattern", true); err != nil {
return nil, err
}
// Check and compile regexp pattern
if connector.re, err = compilePattern(pattern); err != nil {
return nil, fmt.Errorf("unable to compile regexp pattern: %s", err)
}
connector.client, err = influxdb.NewClient(&influxdb.ClientConfig{
Host: connector.host,
Username: connector.username,
Password: connector.password,
Database: connector.database,
IsSecure: connector.useTLS,
})
if err != nil {
return nil, fmt.Errorf("unable to create client: %s", err)
}
return connector, nil
}
}
// PrepareCollection applies options defaults and fallback values, then filters entries by graphs titles and state.
func (library *Library) PrepareCollection(collection *Collection, filter string) *Collection {
collectionTemp := &Collection{}
*collectionTemp = *collection
collectionTemp.Entries = nil
refreshInterval, _ := config.GetInt(collectionTemp.Options, "refresh_interval", false)
for _, entry := range collection.Entries {
item, err := library.GetItem(entry.ID, LibraryItemGraph)
if err != nil {
continue
}
graph := item.(*Graph)
// Initialize options map if needed, then set defaults
if entry.Options == nil {
entry.Options = make(map[string]interface{})
entry.Options["enabled"] = true
}
// Check for linked graph
if graph.Link != "" {
entry.Options["linked"] = true
}
// Retrieve missing title from graph if none provided
if title, ok := entry.Options["title"]; !ok || title == nil {
if graph.Title != "" {
entry.Options["title"] = graph.Title
} else {
entry.Options["title"] = graph.Name
}
}
// Get global refresh interval if none provided
if refreshInterval > 0 {
if _, err := config.GetInt(entry.Options, "refresh_interval", true); err != nil {
entry.Options["refresh_interval"] = refreshInterval
}
}
if enabled, err := config.GetBool(entry.Options, "enabled", false); err != nil || !enabled {
continue
} else if filter != "" {
if title, err := config.GetString(entry.Options, "title", false); err != nil ||
!strings.Contains(strings.ToLower(title), strings.ToLower(filter)) {
continue
}
}
collectionTemp.Entries = append(collectionTemp.Entries, entry)
}
return collectionTemp
}
// FilterCollection filters collection entries by graphs titles and enable state.
func (library *Library) FilterCollection(collection *Collection, filter string) *Collection {
collectionTemp := &Collection{}
*collectionTemp = *collection
collectionTemp.Entries = nil
for _, entry := range collection.Entries {
if enabled, err := config.GetBool(entry.Options, "enabled", false); err != nil || !enabled {
continue
} else if filter != "" {
if title, err := config.GetString(entry.Options, "title", false); err != nil ||
!strings.Contains(strings.ToLower(title), strings.ToLower(filter)) {
continue
}
}
collectionTemp.Entries = append(collectionTemp.Entries, entry)
}
return collectionTemp
}
func init() {
Connectors["graphite"] = func(name string, settings map[string]interface{}) (Connector, error) {
var (
pattern string
err error
)
c := &GraphiteConnector{
name: name,
series: make(map[string]map[string]string),
}
if c.url, err = config.GetString(settings, "url", true); err != nil {
return nil, err
}
if c.timeout, err = config.GetInt(settings, "timeout", false); err != nil {
return nil, err
}
if c.timeout <= 0 {
c.timeout = graphiteDefaultTimeout
}
if c.insecureTLS, err = config.GetBool(settings, "allow_insecure_tls", false); err != nil {
return nil, err
}
if pattern, err = config.GetString(settings, "pattern", true); err != nil {
return nil, err
}
if c.re, err = compilePattern(pattern); err != nil {
return nil, fmt.Errorf("unable to compile regexp pattern: %s", err)
}
return c, nil
}
}
func init() {
Connectors["kairosdb"] = func(name string, settings map[string]interface{}) (Connector, error) {
var (
aggregators interface{}
err error
)
c := &KairosdbConnector{
name: name,
timeout: kairosdbDefaultTimeout,
series: make(map[string]map[string]kairosdbSeriesEntry),
}
if c.url, err = config.GetString(settings, "url", true); err != nil {
return nil, err
}
if c.timeout, err = config.GetInt(settings, "timeout", false); err != nil {
return nil, err
}
if c.timeout <= 0 {
c.timeout = kairosdbDefaultTimeout
}
if c.insecureTLS, err = config.GetBool(settings, "allow_insecure_tls", false); err != nil {
return nil, err
}
if c.sourceTags, err = config.GetStringSlice(settings, "source_tags", false); err != nil {
return nil, err
}
if c.startAbsolute, err = config.GetInt(settings, "start_absolute", false); err != nil {
return nil, err
}
if c.endAbsolute, err = config.GetInt(settings, "end_absolute", false); err != nil {
return nil, err
}
if c.startRelative, err = config.GetJsonObj(settings, "start_relative", false); err != nil {
return nil, err
}
if c.endRelative, err = config.GetJsonObj(settings, "end_relative", false); err != nil {
return nil, err
}
if c.defaultAggregator, err = config.GetJsonObj(settings, "default_aggregator", false); err != nil {
return nil, err
}
if aggregators, err = config.GetJsonArray(settings, "aggregators", false); err != nil {
return nil, err
}
c.aggregators = compileAggregatorPatterns(aggregators, c.name)
if c.startAbsolute > 0 && c.startRelative != nil {
return nil, fmt.Errorf("kairosdb[%s]: start_absolute/start_relative are mutually exclusive", c.name)
}
if c.endAbsolute > 0 && c.endRelative != nil {
return nil, fmt.Errorf("kairosdb[%s]: end_absolute/end_relative are mutually exclusive", c.name)
}
// Enforce startRelative defaults
if c.startAbsolute <= 0 && c.startRelative == nil {
c.startRelative = map[string]interface{}{"value": 3, "unit": "months"}
}
// Enforce sourceTags defaults
if c.sourceTags == nil {
c.sourceTags = []string{"host", "server", "device"}
}
version, version_array, err := kairosdbGetVersion(c)
if err != nil {
return nil, fmt.Errorf("kairosdb[%s]: unable to get KairosDB version: %s", c.name, err)
}
if version_array[0] < 1 {
if version_array[1] <= 9 {
if version_array[1] < 9 || (version_array[1] == 9 && version_array[2] < 4) {
return nil, fmt.Errorf(
"kairosdb[%s]: only KairosDB version 0.9.4 and greater are supported (%s detected)",
c.name,
version,
)
}
}
}
return c, nil
}
}