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client.go
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client.go
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// Copyright 2019-present Open Networking Foundation.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rsm
import (
"context"
"github.com/atomix/atomix-go-framework/pkg/atomix/cluster"
"github.com/atomix/atomix-go-framework/pkg/atomix/driver/env"
"github.com/atomix/atomix-go-framework/pkg/atomix/util"
"github.com/atomix/atomix-go-framework/pkg/atomix/util/async"
)
// NewClient creates a new proxy client
func NewClient(cluster cluster.Cluster, env env.DriverEnv) *Client {
partitions := cluster.Partitions()
proxyPartitions := make([]*Partition, 0, len(partitions))
proxyPartitionsByID := make(map[PartitionID]*Partition)
for _, partition := range partitions {
proxyPartition := NewPartition(partition)
proxyPartitions = append(proxyPartitions, proxyPartition)
proxyPartitionsByID[proxyPartition.ID] = proxyPartition
}
return &Client{
Namespace: env.Namespace,
partitions: proxyPartitions,
partitionsByID: proxyPartitionsByID,
}
}
// Client is a client for communicating with the storage layer
type Client struct {
Namespace string
partitions []*Partition
partitionsByID map[PartitionID]*Partition
}
func (p *Client) Partition(partitionID PartitionID) *Partition {
return p.partitionsByID[partitionID]
}
func (p *Client) PartitionBy(partitionKey []byte) *Partition {
i, err := util.GetPartitionIndex(partitionKey, len(p.partitions))
if err != nil {
panic(err)
}
return p.partitions[i]
}
func (p *Client) Partitions() []*Partition {
return p.partitions
}
func (p *Client) Connect(ctx context.Context) error {
return async.IterAsync(len(p.partitions), func(i int) error {
return p.partitions[i].connect(ctx)
})
}
func (p *Client) Close(ctx context.Context) error {
return async.IterAsync(len(p.partitions), func(i int) error {
return p.partitions[i].close(ctx)
})
}