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46 lines
1.4 KiB
46 lines
1.4 KiB
//
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// DISCLAIMER
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//
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// Copyright 2017 ArangoDB GmbH, Cologne, Germany
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Copyright holder is ArangoDB GmbH, Cologne, Germany
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//
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// Author Ewout Prangsma
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//
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package driver
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import (
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"context"
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)
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// Cluster provides access to cluster wide specific operations.
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// To use this interface, an ArangoDB cluster is required.
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// If this method is a called without a cluster, a PreconditionFailed error is returned.
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func (c *client) Cluster(ctx context.Context) (Cluster, error) {
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role, err := c.ServerRole(ctx)
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if err != nil {
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return nil, WithStack(err)
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}
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if role == ServerRoleSingle || role == ServerRoleSingleActive || role == ServerRoleSinglePassive {
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// Standalone server, this is wrong
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return nil, WithStack(newArangoError(412, 0, "Cluster expected, found SINGLE server"))
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}
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cl, err := newCluster(c.conn)
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if err != nil {
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return nil, WithStack(err)
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}
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return cl, nil
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}
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