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[CLC-258]: Add demo map setmany command (hazelcast#343)
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Original file line number | Diff line number | Diff line change |
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//go:build std || demo | ||
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package demo | ||
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import ( | ||
"context" | ||
"fmt" | ||
"strconv" | ||
"strings" | ||
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"github.com/hazelcast/hazelcast-commandline-client/clc" | ||
. "github.com/hazelcast/hazelcast-commandline-client/internal/check" | ||
"github.com/hazelcast/hazelcast-commandline-client/internal/plug" | ||
"github.com/hazelcast/hazelcast-go-client" | ||
) | ||
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type MapSetManyCmd struct{} | ||
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const ( | ||
flagName = "name" | ||
flagSize = "size" | ||
kb = "KB" | ||
mb = "MB" | ||
kbs = 1024 | ||
mbs = kbs * 1024 | ||
) | ||
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func (m MapSetManyCmd) Init(cc plug.InitContext) error { | ||
cc.SetCommandUsage("map-setmany [entry-count] [flags]") | ||
cc.SetPositionalArgCount(1, 1) | ||
cc.AddStringFlag(flagName, "n", "default", false, "Name of the map.") | ||
cc.AddStringFlag(flagSize, "", "", true, `Size of the map value in bytes, the following suffixes can also be used: kb, mb, e.g., 42kb)`) | ||
help := "Generates multiple map entries." | ||
cc.SetCommandHelp(help, help) | ||
return nil | ||
} | ||
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func (m MapSetManyCmd) Exec(ctx context.Context, ec plug.ExecContext) error { | ||
entryCount := ec.Args()[0] | ||
c, err := strconv.Atoi(entryCount) | ||
if err != nil { | ||
return err | ||
} | ||
mapName := ec.Props().GetString(flagName) | ||
size := ec.Props().GetString(flagSize) | ||
ci, err := ec.ClientInternal(ctx) | ||
if err != nil { | ||
return err | ||
} | ||
_, stop, err := ec.ExecuteBlocking(ctx, func(ctx context.Context, sp clc.Spinner) (any, error) { | ||
sp.SetText(fmt.Sprintf("Creating entries in map %s with %d entries", mapName, c)) | ||
mm, err := ci.Client().GetMap(ctx, mapName) | ||
if err != nil { | ||
return nil, err | ||
} | ||
return nil, createEntries(ctx, c, size, mm) | ||
}) | ||
if err != nil { | ||
return err | ||
} | ||
stop() | ||
return nil | ||
} | ||
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func createEntries(ctx context.Context, entryCount int, size string, m *hazelcast.Map) error { | ||
v, err := makeValue(size) | ||
if err != nil { | ||
return err | ||
} | ||
for i := 1; i <= entryCount; i++ { | ||
k := fmt.Sprintf("k%d", i) | ||
err := m.Set(ctx, k, v) | ||
if err != nil { | ||
return err | ||
} | ||
} | ||
return nil | ||
} | ||
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func makeValue(size string) (string, error) { | ||
b, err := getValueSize(size) | ||
if err != nil { | ||
return "", err | ||
} | ||
return strings.Repeat("a", int(b)), nil | ||
} | ||
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func getValueSize(sizeStr string) (int64, error) { | ||
sizeStr = strings.ToUpper(sizeStr) | ||
if strings.HasSuffix(sizeStr, kb) { | ||
sizeStr = strings.TrimSuffix(sizeStr, kb) | ||
size, err := strconv.ParseInt(sizeStr, 10, 64) | ||
if err != nil { | ||
return 0, err | ||
} | ||
return size * kbs, nil | ||
} | ||
if strings.HasSuffix(sizeStr, mb) { | ||
sizeStr = strings.TrimSuffix(sizeStr, mb) | ||
size, err := strconv.ParseInt(sizeStr, 10, 64) | ||
if err != nil { | ||
return 0, err | ||
} | ||
return size * mbs, nil | ||
} | ||
size, err := strconv.ParseInt(sizeStr, 10, 64) | ||
if err != nil { | ||
return 0, err | ||
} | ||
return size, nil | ||
} | ||
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func init() { | ||
Must(plug.Registry.RegisterCommand("demo:map-setmany", &MapSetManyCmd{})) | ||
} |
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