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context.go
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context.go
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/*
Copyright Medcl (m AT medcl.net)
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 pipeline
import (
log "github.com/cihub/seelog"
"github.com/huminghe/infini-framework/core/errors"
"github.com/huminghe/infini-framework/core/util"
)
type ParaKey string
type Context struct {
Parameters
SequenceID int64 `json:"sequence"`
IsSimulate bool `json:"is_simulate"`
IgnoreBroken bool `json:"ignore_broken"`
Payload interface{} `json:"-"`
//private parameters
breakFlag bool
exitFlag bool
PipelineID string
}
// End break all pipelines, but the end phrase not included
func (context *Context) End(msg interface{}) {
log.Trace("break,", context, ",", msg)
if context == nil {
panic(errors.New("context is nil"))
}
context.breakFlag = true
context.Payload = msg
}
// IsEnd indicates whether the pipe process is end, end means no more processes will be execute
func (context *Context) IsEnd() bool {
return context.breakFlag
}
// IsExit means all pipelines will be broke and jump to outside, even the end phrase will not be executed as well
func (context *Context) IsExit() bool {
return context.exitFlag
}
// Exit tells pipeline to exit
func (context *Context) Exit(msg interface{}) {
context.exitFlag = true
context.Payload = msg
}
func (context *Context) Marshall() []byte {
return util.ToJSONBytes(context)
}
func UnMarshall(b []byte) Context {
c := Context{}
util.FromJSONBytes(b, &c)
return c
}