// Parses a Heka message and extracts the information necessary to start a new
// SandboxFilter
func (this *SandboxManagerFilter) loadSandbox(fr pipeline.FilterRunner,
h pipeline.PluginHelper, dir string, msg *message.Message) (err error) {
fv, _ := msg.GetFieldValue("config")
if config, ok := fv.(string); ok {
var configFile pipeline.ConfigFile
if _, err = toml.Decode(config, &configFile); err != nil {
return fmt.Errorf("loadSandbox failed: %s\n", err)
} else {
for name, conf := range configFile {
name = getSandboxName(fr.Name(), name)
if _, ok := h.Filter(name); ok {
// todo support reload
return fmt.Errorf("loadSandbox failed: %s is already running", name)
}
fr.LogMessage(fmt.Sprintf("Loading: %s", name))
confFile := filepath.Join(dir, fmt.Sprintf("%s.toml", name))
err = ioutil.WriteFile(confFile, []byte(config), 0600)
if err != nil {
return
}
var sbc SandboxConfig
if err = toml.PrimitiveDecode(conf, &sbc); err != nil {
return fmt.Errorf("loadSandbox failed: %s\n", err)
}
scriptFile := filepath.Join(dir, fmt.Sprintf("%s.%s", name, sbc.ScriptType))
err = ioutil.WriteFile(scriptFile, []byte(msg.GetPayload()), 0600)
if err != nil {
removeAll(dir, fmt.Sprintf("%s.*", name))
return
}
// check/clear the old state preservation file
// this avoids issues with changes to the data model since the last load
// and prevents holes in the graph from looking like anomalies
os.Remove(filepath.Join(pipeline.PrependBaseDir(DATA_DIR), name+DATA_EXT))
var runner pipeline.FilterRunner
runner, err = this.createRunner(dir, name, conf)
if err != nil {
removeAll(dir, fmt.Sprintf("%s.*", name))
return
}
err = h.PipelineConfig().AddFilterRunner(runner)
if err == nil {
this.currentFilters++
}
break // only interested in the first item
}
}
}
return
}
// Parses a Heka message and extracts the information necessary to start a new
// SandboxFilter
func (this *SandboxManagerFilter) loadSandbox(fr pipeline.FilterRunner,
h pipeline.PluginHelper, dir string, msg *message.Message) (err error) {
fv, _ := msg.GetFieldValue("config")
if config, ok := fv.(string); ok {
var configFile pipeline.ConfigFile
if _, err = toml.Decode(config, &configFile); err != nil {
return fmt.Errorf("loadSandbox failed: %s\n", err)
}
for name, conf := range configFile {
name = getSandboxName(fr.Name(), name)
if _, ok := h.Filter(name); ok {
// todo support reload
return fmt.Errorf("loadSandbox failed: %s is already running", name)
}
fr.LogMessage(fmt.Sprintf("Loading: %s", name))
confFile := filepath.Join(dir, fmt.Sprintf("%s.toml", name))
err = ioutil.WriteFile(confFile, []byte(config), 0600)
if err != nil {
return
}
var sbc SandboxConfig
// Default, will get overwritten if necessary
sbc.ScriptType = "lua"
if err = toml.PrimitiveDecode(conf, &sbc); err != nil {
return fmt.Errorf("loadSandbox failed: %s\n", err)
}
scriptFile := filepath.Join(dir, fmt.Sprintf("%s.%s", name, sbc.ScriptType))
err = ioutil.WriteFile(scriptFile, []byte(msg.GetPayload()), 0600)
if err != nil {
removeAll(dir, fmt.Sprintf("%s.*", name))
return
}
var runner pipeline.FilterRunner
runner, err = this.createRunner(dir, name, conf)
if err != nil {
removeAll(dir, fmt.Sprintf("%s.*", name))
return
}
err = this.pConfig.AddFilterRunner(runner)
if err == nil {
atomic.AddInt32(&this.currentFilters, 1)
}
break // only interested in the first item
}
}
return
}