112 lines
3.1 KiB
Go
112 lines
3.1 KiB
Go
package plugins
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import (
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//"beckn-onix/plugins/plugin_definition"
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"fmt"
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"io/ioutil"
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"log"
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"plugin"
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"runtime"
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"time"
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"gopkg.in/yaml.v2"
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)
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// PluginConfig represents the configuration for plugins, including the plugins themselves.
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type PluginConfig struct {
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Plugins Plugins `yaml:"plugins"`
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}
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// Plugins holds the various plugin types used in the configuration.
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type Plugins struct {
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ValidationPlugin ValidationPlugin `yaml:"validation_plugin"`
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}
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// ValidationPlugin represents a plugin with an ID, configuration, and the path to the plugin.
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type ValidationPlugin struct {
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ID string `yaml:"id"`
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Config PluginDetails `yaml:"config"`
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PluginPath string `yaml:"plugin_path"`
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}
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// PluginDetails contains information about the plugin schema directory.
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type PluginDetails struct {
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Schema string `yaml:"schema_dir"`
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}
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// PluginManager manages the loading and execution of plugins.
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type PluginManager struct {
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validatorProvider ValidatorProvider
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}
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// NewValidatorProvider initializes the PluginManager with the given configuration.
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func NewValidatorProvider(pluginsConfig PluginConfig) (*PluginManager, map[string]Validator, error) {
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start := time.Now()
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var memStatsBefore runtime.MemStats
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runtime.ReadMemStats(&memStatsBefore)
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validationPlugin := pluginsConfig.Plugins.ValidationPlugin
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if validationPlugin.ID == "" {
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return nil, nil, fmt.Errorf("validation_plugin ID is empty")
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}
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pluginPath := validationPlugin.PluginPath + validationPlugin.ID + ".so"
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// Check if the plugin path is empty
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if pluginPath == "" {
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return nil, nil, fmt.Errorf("plugin path is empty")
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}
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// Load the plugin
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p, err := plugin.Open(pluginPath)
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if err != nil {
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return nil, nil, fmt.Errorf("failed to open plugin: %v", err)
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}
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vpSymbol, err := p.Lookup("GetProvider")
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if err != nil {
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return nil, nil, err
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}
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getProviderFunc, ok := vpSymbol.(func() ValidatorProvider)
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if !ok {
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return nil, nil, fmt.Errorf("failed to cast to *plugins.ValidatorProvider")
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}
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validatorProvider := getProviderFunc()
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schemaDir := pluginsConfig.Plugins.ValidationPlugin.Config.Schema
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validator, err := validatorProvider.Initialize(schemaDir)
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if err != nil {
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log.Fatalf("Failed to initialize validator provider: %v", err)
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}
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fmt.Println("printing validators in new validator provider : ", validator)
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var memStatsAfter runtime.MemStats
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runtime.ReadMemStats(&memStatsAfter)
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fmt.Printf("Memory allocated during plugin boot-up: %v MiB", (memStatsAfter.Alloc-memStatsBefore.Alloc)/1024/1024)
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fmt.Println(" ")
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fmt.Printf("plugin boot-up executed in %s\n", time.Since(start))
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return &PluginManager{validatorProvider: validatorProvider}, validator, nil
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}
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// LoadPluginsConfig loads the plugins configuration from a YAML file.
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func LoadPluginsConfig(filePath string) (PluginConfig, error) {
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// start := time.Now()
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data, err := ioutil.ReadFile(filePath)
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if err != nil {
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return PluginConfig{}, err
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}
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var config PluginConfig
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err = yaml.Unmarshal(data, &config)
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if err != nil {
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return PluginConfig{}, err
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}
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// fmt.Printf("loadconfig executed in %s\n", time.Since(start))
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return config, nil
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}
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