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batch.go
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batch.go
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package client
//
// Copyright (c) 2019 ARM Limited.
//
// SPDX-License-Identifier: MIT
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
import (
"github.com/armPelionEdge/devicedb/transport"
)
// Contains a database update operation
type Batch struct {
ops map[string]transport.TransportUpdateOp
}
// Create a new batch update
func NewBatch() *Batch {
return &Batch{
ops: make(map[string]transport.TransportUpdateOp),
}
}
// Adds a key put operation to this update. Key and value are the
// key that is being modified and the value that it should be set to.
// context is the causal context for the modification. It can be
// left blank if
func (batch *Batch) Put(key string, value string, context string) *Batch {
batch.ops[key] = transport.TransportUpdateOp{
Type: "put",
Key: key,
Value: value,
Context: context,
}
return batch
}
func (batch *Batch) Delete(key string, context string) *Batch {
batch.ops[key] = transport.TransportUpdateOp{
Type: "delete",
Key: key,
Context: context,
}
return batch
}
func (batch *Batch) ToTransportUpdateBatch() transport.TransportUpdateBatch {
var updateBatch []transport.TransportUpdateOp = make([]transport.TransportUpdateOp, 0, len(batch.ops))
for _, op := range batch.ops {
updateBatch = append(updateBatch, op)
}
return transport.TransportUpdateBatch(updateBatch)
}