Golang GsiClient.CreateIndex方法代码示例

// Creates an index and waits for it to become active
func CreateSecondaryIndex(
	indexName, bucketName, server, whereExpr string, indexFields []string, isPrimary bool, with []byte,
	skipIfExists bool, indexActiveTimeoutSeconds int64, client *qc.GsiClient) error {

	if client == nil {
		c, e := CreateClient(server, "2itest")
		if e != nil {
			return e
		}
		client = c
		defer client.Close()
	}

	indexExists := IndexExistsWithClient(indexName, bucketName, server, client)
	if skipIfExists == true && indexExists == true {
		return nil
	}
	var secExprs []string
	if isPrimary == false {
		for _, indexField := range indexFields {
			expr, err := n1ql.ParseExpression(indexField)
			if err != nil {
				log.Printf("Creating index %v. Error while parsing the expression (%v) : %v", indexName, indexField, err)
			}

			secExprs = append(secExprs, expression.NewStringer().Visit(expr))
		}
	}
	using := "gsi"
	exprType := "N1QL"
	partnExp := ""

	start := time.Now()
	defnID, err := client.CreateIndex(indexName, bucketName, using, exprType, partnExp, whereExpr, secExprs, isPrimary, with)
	if err == nil {
		log.Printf("Created the secondary index %v. Waiting for it become active", indexName)
		e := WaitTillIndexActive(defnID, client, indexActiveTimeoutSeconds)
		if e != nil {
			return e
		} else {
			elapsed := time.Since(start)
			tc.LogPerfStat("CreateAndBuildIndex", elapsed)
			return nil
		}
	}

	return err
}

// Creates an index and DOES NOT wait for it to become active
func CreateSecondaryIndexAsync(
	indexName, bucketName, server, whereExpr string, indexFields []string, isPrimary bool, with []byte,
	skipIfExists bool, client *qc.GsiClient) error {

	if client == nil {
		c, e := CreateClient(server, "2itest")
		if e != nil {
			return e
		}
		client = c
		defer client.Close()
	}

	indexExists := IndexExistsWithClient(indexName, bucketName, server, client)
	if skipIfExists == true && indexExists == true {
		return nil
	}
	var secExprs []string
	if isPrimary == false {
		for _, indexField := range indexFields {
			expr, err := n1ql.ParseExpression(indexField)
			if err != nil {
				log.Printf("Creating index %v. Error while parsing the expression (%v) : %v", indexName, indexField, err)
			}

			secExprs = append(secExprs, expression.NewStringer().Visit(expr))
		}
	}
	using := "gsi"
	exprType := "N1QL"
	partnExp := ""

	_, err := client.CreateIndex(indexName, bucketName, using, exprType, partnExp, whereExpr, secExprs, isPrimary, with)
	if err == nil {
		log.Printf("Created the secondary index %v", indexName)
		return nil
	}
	return err
}

// HandleCommand after parsing it with ParseArgs().
func HandleCommand(
	client *qclient.GsiClient,
	cmd *Command,
	verbose bool,
	w io.Writer) (err error) {

	iname, bucket, limit := cmd.IndexName, cmd.Bucket, cmd.Limit
	low, high, equal, incl := cmd.Low, cmd.High, cmd.Equal, cmd.Inclusion
	cons := cmd.Consistency

	indexes, err := client.Refresh()

	entries := 0
	callb := func(res qclient.ResponseReader) bool {
		if res.Error() != nil {
			fmt.Fprintln(w, "Error: ", res)
		} else if skeys, pkeys, err := res.GetEntries(); err != nil {
			fmt.Fprintln(w, "Error: ", err)
		} else {
			if verbose == false {
				for i, pkey := range pkeys {
					fmt.Fprintf(w, "%v ... %v\n", skeys[i], string(pkey))
				}
			}
			entries += len(pkeys)
		}
		return true
	}

	switch cmd.OpType {
	case "nodes":
		fmt.Fprintln(w, "List of nodes:")
		nodes, err := client.Nodes()
		if err != nil {
			return err
		}
		for _, n := range nodes {
			fmsg := "    {%v, %v, %q}\n"
			fmt.Fprintf(w, fmsg, n.Adminport, n.Queryport, n.Status)
		}

	case "list":
		time.Sleep(2 * time.Second)
		indexes, err = client.Refresh()
		if err != nil {
			return err
		}
		fmt.Fprintln(w, "List of indexes:")
		for _, index := range indexes {
			printIndexInfo(w, index)
		}

	case "create":
		var defnID uint64
		if len(cmd.SecStrs) == 0 && !cmd.IsPrimary || cmd.IndexName == "" {
			return fmt.Errorf("createIndex(): required fields missing")
		}
		defnID, err = client.CreateIndex(
			iname, bucket, cmd.Using, cmd.ExprType,
			cmd.PartnStr, cmd.WhereStr, cmd.SecStrs, cmd.IsPrimary,
			[]byte(cmd.With))
		if err == nil {
			fmt.Fprintf(w, "Index created: %v with %q\n", defnID, cmd.With)
		}

	case "build":
		defnIDs := make([]uint64, 0, len(cmd.Bindexes))
		for _, bindex := range cmd.Bindexes {
			v := strings.Split(bindex, ":")
			if len(v) < 0 {
				return fmt.Errorf("invalid index specified : %v", bindex)
			}
			bucket, iname = v[0], v[1]
			index, ok := GetIndex(client, bucket, iname)
			if ok {
				defnIDs = append(defnIDs, uint64(index.Definition.DefnId))
			} else {
				err = fmt.Errorf("index %v/%v unknown", bucket, iname)
				break
			}
		}
		if err == nil {
			err = client.BuildIndexes(defnIDs)
			fmt.Fprintf(w, "Index building for: %v\n", defnIDs)
		}

	case "drop":
		index, ok := GetIndex(client, cmd.Bucket, cmd.IndexName)
		if !ok {
			return fmt.Errorf("invalid index specified : %v", cmd.IndexName)
		}
		err = client.DropIndex(uint64(index.Definition.DefnId))
		if err == nil {
			fmt.Fprintf(w, "Index dropped %v/%v\n", bucket, iname)
		} else {
			err = fmt.Errorf("index %v/%v drop failed", bucket, iname)
			break
		}

//.........这里部分代码省略.........