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describe.go
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describe.go
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package describe
import (
"context"
"net/http"
"github.com/redhat-developer/app-services-cli/pkg/cmdutil"
"github.com/redhat-developer/app-services-cli/pkg/connection"
"github.com/redhat-developer/app-services-cli/pkg/localize"
"github.com/redhat-developer/app-services-cli/pkg/cmd/flag"
"github.com/redhat-developer/app-services-cli/internal/config"
"github.com/redhat-developer/app-services-cli/pkg/cmd/factory"
"github.com/redhat-developer/app-services-cli/pkg/dump"
"github.com/redhat-developer/app-services-cli/pkg/iostreams"
"github.com/redhat-developer/app-services-cli/pkg/logging"
flagutil "github.com/redhat-developer/app-services-cli/pkg/cmdutil/flags"
"github.com/spf13/cobra"
)
type options struct {
name string
kafkaID string
outputFormat string
IO *iostreams.IOStreams
Config config.IConfig
Connection factory.ConnectionFunc
Logger logging.Logger
localizer localize.Localizer
Context context.Context
}
// NewDescribeTopicCommand gets a new command for describing a kafka topic.
func NewDescribeTopicCommand(f *factory.Factory) *cobra.Command {
opts := &options{
Connection: f.Connection,
Config: f.Config,
Logger: f.Logger,
IO: f.IOStreams,
localizer: f.Localizer,
Context: f.Context,
}
cmd := &cobra.Command{
Use: "describe",
Short: opts.localizer.MustLocalize("kafka.topic.describe.cmd.shortDescription"),
Long: opts.localizer.MustLocalize("kafka.topic.describe.cmd.longDescription"),
Example: opts.localizer.MustLocalize("kafka.topic.describe.cmd.example"),
Args: cobra.NoArgs,
RunE: func(cmd *cobra.Command, args []string) (err error) {
if opts.outputFormat != "" {
if err = flag.ValidateOutput(opts.outputFormat); err != nil {
return err
}
}
if opts.kafkaID != "" {
return runCmd(opts)
}
cfg, err := opts.Config.Load()
if err != nil {
return err
}
if !cfg.HasKafka() {
return opts.localizer.MustLocalizeError("kafka.topic.common.error.noKafkaSelected")
}
opts.kafkaID = cfg.Services.Kafka.ClusterID
return runCmd(opts)
},
}
cmd.Flags().StringVarP(&opts.outputFormat, "output", "o", "json", opts.localizer.MustLocalize("kafka.topic.common.flag.output.description"))
cmd.Flags().StringVar(&opts.name, "name", "", opts.localizer.MustLocalize("kafka.topic.common.flag.output.description"))
_ = cmd.RegisterFlagCompletionFunc("name", func(cmd *cobra.Command, _ []string, toComplete string) ([]string, cobra.ShellCompDirective) {
return cmdutil.FilterValidTopicNameArgs(f, toComplete)
})
_ = cmd.MarkFlagRequired("name")
flagutil.EnableOutputFlagCompletion(cmd)
return cmd
}
func runCmd(opts *options) error {
conn, err := opts.Connection(connection.DefaultConfigRequireMasAuth)
if err != nil {
return err
}
api, kafkaInstance, err := conn.API().KafkaAdmin(opts.kafkaID)
if err != nil {
return err
}
// fetch the topic
topicResponse, httpRes, err := api.TopicsApi.GetTopic(opts.Context, opts.name).Execute()
if httpRes != nil {
defer httpRes.Body.Close()
}
if err != nil {
if httpRes == nil {
return err
}
topicNameTmplPair := localize.NewEntry("TopicName", opts.name)
kafkaNameTmplPair := localize.NewEntry("InstanceName", kafkaInstance.GetName())
operationTmplPair := localize.NewEntry("Operation", "describe")
switch httpRes.StatusCode {
case http.StatusNotFound:
return opts.localizer.MustLocalizeError("kafka.topic.common.error.notFoundError", topicNameTmplPair, kafkaNameTmplPair)
case http.StatusUnauthorized:
return opts.localizer.MustLocalizeError("kafka.topic.common.error.unauthorized", operationTmplPair)
case http.StatusForbidden:
return opts.localizer.MustLocalizeError("kafka.topic.common.error.forbidden", operationTmplPair)
case http.StatusInternalServerError:
return opts.localizer.MustLocalizeError("kafka.topic.common.error.internalServerError")
case http.StatusServiceUnavailable:
return opts.localizer.MustLocalizeError("kafka.topic.common.error.unableToConnectToKafka", localize.NewEntry("Name", kafkaInstance.GetName()))
default:
return err
}
}
return dump.Formatted(opts.IO.Out, opts.outputFormat, topicResponse)
}