dbbd386111
Reporting is another use case that should be satisfied by this tool. Since the use case deviates in terms of I/O, it's worth adding a command-line interface for now and for future expansion. Test: Unit tests included, will validate locally Change-Id: Ifade560d9898722fdd5299d06899265b70ce771f
81 lines
1.9 KiB
Go
81 lines
1.9 KiB
Go
package main
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import (
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"fmt"
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"repodiff/constants"
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"repodiff/controllers"
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ent "repodiff/entities"
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"repodiff/handlers"
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"repodiff/persistence/filesystem"
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)
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const configFile = "config.json"
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type controllerFunc func(ent.ApplicationConfig) error
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func main() {
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appConfig, err := loadConfig()
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if err != nil {
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panic(formattedError(err))
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}
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statusChannel := make(chan ent.StatusMessage)
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go handlers.StartHTTP(appConfig.Port, statusChannel)
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go run(appConfig, statusChannel)
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select {}
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}
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func run(appConfig ent.ApplicationConfig, statusChannel chan ent.StatusMessage) {
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statusChannel <- ent.StatusMessage{
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JobStatus: constants.JobStatusRunning,
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}
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for _, controllerFn := range getEnabledControllers() {
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if err := controllerFn(appConfig); err != nil {
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topLevelErrorHandle(err, statusChannel)
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return
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}
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}
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statusChannel <- ent.StatusMessage{
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JobStatus: constants.JobStatusComplete,
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}
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}
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func getEnabledControllers() []controllerFunc {
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enabled := getEnabledOperations()
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return []controllerFunc{
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disabledFnNullified(controllers.ExecuteDifferentials, enabled.Diff),
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disabledFnNullified(controllers.DenormalizeData, enabled.Denorm),
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disabledFnNullified(controllers.GenerateCommitReport, enabled.Report),
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}
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}
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func disabledFnNullified(original controllerFunc, enabled bool) controllerFunc {
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if enabled {
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return original
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}
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return func(ent.ApplicationConfig) error {
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return nil
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}
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}
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func topLevelErrorHandle(err error, statusChannel chan ent.StatusMessage) {
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statusChannel <- ent.StatusMessage{
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JobStatus: constants.JobStatusFailed,
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Meta: formattedError(err),
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}
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fmt.Println(formattedError(err))
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}
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func loadConfig() (ent.ApplicationConfig, error) {
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var appConfig ent.ApplicationConfig
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err := filesystem.ReadFileAsJson(configFile, &appConfig)
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if err != nil {
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return appConfig, err
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}
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return appConfig, nil
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}
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func formattedError(err error) string {
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return fmt.Sprintf("%+v", err)
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}
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