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default_context.go
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/
default_context.go
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// Copyright Project Harbor Authors
//
// 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 impl
import (
"context"
"errors"
"reflect"
"github.com/goharbor/harbor/src/jobservice/env"
"github.com/goharbor/harbor/src/jobservice/job"
"github.com/goharbor/harbor/src/jobservice/logger"
jmodel "github.com/goharbor/harbor/src/jobservice/models"
)
// DefaultContext provides a basic job context
type DefaultContext struct {
// System context
sysContext context.Context
// Logger for job
logger logger.Interface
// op command func
opCommandFunc job.CheckOPCmdFunc
// checkin func
checkInFunc job.CheckInFunc
// launch job
launchJobFunc job.LaunchJobFunc
// other required information
properties map[string]interface{}
}
// NewDefaultContext is constructor of building DefaultContext
func NewDefaultContext(sysCtx context.Context) env.JobContext {
return &DefaultContext{
sysContext: sysCtx,
properties: make(map[string]interface{}),
}
}
// Build implements the same method in env.JobContext interface
// This func will build the job execution context before running
func (c *DefaultContext) Build(dep env.JobData) (env.JobContext, error) {
jContext := &DefaultContext{
sysContext: c.sysContext,
properties: make(map[string]interface{}),
}
// Copy properties
if len(c.properties) > 0 {
for k, v := range c.properties {
jContext.properties[k] = v
}
}
// Set loggers for job
if err := setLoggers(func(lg logger.Interface) {
jContext.logger = lg
}, dep.ID); err != nil {
return nil, err
}
if opCommandFunc, ok := dep.ExtraData["opCommandFunc"]; ok {
if reflect.TypeOf(opCommandFunc).Kind() == reflect.Func {
if funcRef, ok := opCommandFunc.(job.CheckOPCmdFunc); ok {
jContext.opCommandFunc = funcRef
}
}
}
if jContext.opCommandFunc == nil {
return nil, errors.New("failed to inject opCommandFunc")
}
if checkInFunc, ok := dep.ExtraData["checkInFunc"]; ok {
if reflect.TypeOf(checkInFunc).Kind() == reflect.Func {
if funcRef, ok := checkInFunc.(job.CheckInFunc); ok {
jContext.checkInFunc = funcRef
}
}
}
if jContext.checkInFunc == nil {
return nil, errors.New("failed to inject checkInFunc")
}
if launchJobFunc, ok := dep.ExtraData["launchJobFunc"]; ok {
if reflect.TypeOf(launchJobFunc).Kind() == reflect.Func {
if funcRef, ok := launchJobFunc.(job.LaunchJobFunc); ok {
jContext.launchJobFunc = funcRef
}
}
}
if jContext.launchJobFunc == nil {
return nil, errors.New("failed to inject launchJobFunc")
}
return jContext, nil
}
// Get implements the same method in env.JobContext interface
func (c *DefaultContext) Get(prop string) (interface{}, bool) {
v, ok := c.properties[prop]
return v, ok
}
// SystemContext implements the same method in env.JobContext interface
func (c *DefaultContext) SystemContext() context.Context {
return c.sysContext
}
// Checkin is bridge func for reporting detailed status
func (c *DefaultContext) Checkin(status string) error {
if c.checkInFunc != nil {
c.checkInFunc(status)
} else {
return errors.New("nil check in function")
}
return nil
}
// OPCommand return the control operational command like stop/cancel if have
func (c *DefaultContext) OPCommand() (string, bool) {
if c.opCommandFunc != nil {
return c.opCommandFunc()
}
return "", false
}
// GetLogger returns the logger
func (c *DefaultContext) GetLogger() logger.Interface {
return c.logger
}
// LaunchJob launches sub jobs
func (c *DefaultContext) LaunchJob(req jmodel.JobRequest) (jmodel.JobStats, error) {
if c.launchJobFunc == nil {
return jmodel.JobStats{}, errors.New("nil launch job function")
}
return c.launchJobFunc(req)
}