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95 lines
2.2 KiB
Go
95 lines
2.2 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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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package job
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import (
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"context"
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)
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// Job is request of loading/releasing collection/partitions,
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// the execution flow is:
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// 1. PreExecute()
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// 2. Execute(), skip this step if PreExecute() failed
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// 3. PostExecute()
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type Job interface {
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MsgID() int64
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CollectionID() int64
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Context() context.Context
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// PreExecute does checks, DO NOT persists any thing within this stage,
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PreExecute() error
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// Execute processes the request
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Execute() error
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// PostExecute clears resources, it will be always processed
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PostExecute()
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Error() error
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SetError(err error)
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Done()
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Wait() error
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}
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type BaseJob struct {
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ctx context.Context
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msgID int64
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collectionID int64
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err error
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doneCh chan struct{}
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}
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func NewBaseJob(ctx context.Context, msgID, collectionID int64) *BaseJob {
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return &BaseJob{
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ctx: ctx,
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msgID: msgID,
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collectionID: collectionID,
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doneCh: make(chan struct{}),
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}
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}
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func (job *BaseJob) MsgID() int64 {
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return job.msgID
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}
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func (job *BaseJob) CollectionID() int64 {
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return job.collectionID
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}
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func (job *BaseJob) Context() context.Context {
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return job.ctx
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}
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func (job *BaseJob) Error() error {
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return job.err
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}
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func (job *BaseJob) SetError(err error) {
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job.err = err
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}
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func (job *BaseJob) Done() {
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close(job.doneCh)
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}
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func (job *BaseJob) Wait() error {
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<-job.doneCh
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return job.err
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}
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func (job *BaseJob) PreExecute() error {
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return nil
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}
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func (job *BaseJob) PostExecute() {}
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