github.com/vmware/govmomi@v0.51.0/cli/metric/interval/info.go (about)

     1  // © Broadcom. All Rights Reserved.
     2  // The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
     3  // SPDX-License-Identifier: Apache-2.0
     4  
     5  package interval
     6  
     7  import (
     8  	"context"
     9  	"flag"
    10  	"fmt"
    11  	"strings"
    12  	"text/tabwriter"
    13  	"time"
    14  
    15  	"github.com/vmware/govmomi/cli"
    16  	"github.com/vmware/govmomi/cli/metric"
    17  )
    18  
    19  type info struct {
    20  	*metric.PerformanceFlag
    21  }
    22  
    23  func init() {
    24  	cli.Register("metric.interval.info", &info{})
    25  }
    26  
    27  func (cmd *info) Register(ctx context.Context, f *flag.FlagSet) {
    28  	cmd.PerformanceFlag, ctx = metric.NewPerformanceFlag(ctx)
    29  	cmd.PerformanceFlag.Register(ctx, f)
    30  }
    31  
    32  func (cmd *info) Description() string {
    33  	return `List historical metric intervals.
    34  
    35  Examples:
    36    govc metric.interval.info
    37    govc metric.interval.info -i 300`
    38  }
    39  
    40  func (cmd *info) Process(ctx context.Context) error {
    41  	if err := cmd.PerformanceFlag.Process(ctx); err != nil {
    42  		return err
    43  	}
    44  	return nil
    45  }
    46  
    47  func (cmd *info) Run(ctx context.Context, f *flag.FlagSet) error {
    48  	m, err := cmd.Manager(ctx)
    49  	if err != nil {
    50  		return err
    51  	}
    52  
    53  	intervals, err := m.HistoricalInterval(ctx)
    54  	if err != nil {
    55  		return err
    56  	}
    57  
    58  	tw := tabwriter.NewWriter(cmd.Out, 2, 0, 2, ' ', 0)
    59  	cmd.Out = tw
    60  
    61  	interval := cmd.Interval(0)
    62  
    63  	for _, i := range intervals {
    64  		if interval != 0 && i.SamplingPeriod != interval {
    65  			continue
    66  		}
    67  
    68  		period := (time.Duration(i.SamplingPeriod) * time.Second).String()
    69  		period = strings.TrimSuffix(period, "0s")
    70  		if strings.Contains(period, "h") {
    71  			period = strings.TrimSuffix(period, "0m")
    72  		}
    73  		samples := i.Length / i.SamplingPeriod
    74  
    75  		fmt.Fprintf(cmd.Out, "ID:\t%d\n", i.SamplingPeriod)
    76  		fmt.Fprintf(cmd.Out, "  Enabled:\t%t\n", i.Enabled)
    77  		fmt.Fprintf(cmd.Out, "  Interval:\t%s\n", period)
    78  		fmt.Fprintf(cmd.Out, "  Available Samples:\t%d\n", samples)
    79  		fmt.Fprintf(cmd.Out, "  Name:\t%s\n", i.Name)
    80  		fmt.Fprintf(cmd.Out, "  Level:\t%d\n", i.Level)
    81  	}
    82  
    83  	return tw.Flush()
    84  }