github.com/oam-dev/kubevela@v1.9.11/pkg/velaql/context.go (about)

     1  /*
     2   Copyright 2021. The KubeVela Authors.
     3  
     4   Licensed under the Apache License, Version 2.0 (the "License");
     5   you may not use this file except in compliance with the License.
     6   You may obtain a copy of the License at
     7  
     8       http://www.apache.org/licenses/LICENSE-2.0
     9  
    10   Unless required by applicable law or agreed to in writing, software
    11   distributed under the License is distributed on an "AS IS" BASIS,
    12   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   See the License for the specific language governing permissions and
    14   limitations under the License.
    15  */
    16  
    17  package velaql
    18  
    19  import (
    20  	"github.com/pkg/errors"
    21  	corev1 "k8s.io/api/core/v1"
    22  
    23  	wfContext "github.com/kubevela/workflow/pkg/context"
    24  	"github.com/kubevela/workflow/pkg/cue/model/value"
    25  )
    26  
    27  // NewViewContext new view context
    28  func NewViewContext() (wfContext.Context, error) {
    29  	viewContext := &ViewContext{}
    30  	var err error
    31  	viewContext.vars, err = value.NewValue("", nil, "")
    32  	return viewContext, err
    33  }
    34  
    35  // ViewContext is view context
    36  type ViewContext struct {
    37  	vars *value.Value
    38  }
    39  
    40  // GetVar get variable from workflow context.
    41  func (c ViewContext) GetVar(paths ...string) (*value.Value, error) {
    42  	return c.vars.LookupValue(paths...)
    43  }
    44  
    45  // SetVar set variable to workflow context.
    46  func (c ViewContext) SetVar(v *value.Value, paths ...string) error {
    47  	str, err := v.String()
    48  	if err != nil {
    49  		return errors.WithMessage(err, "compile var")
    50  	}
    51  	if err := c.vars.FillRaw(str, paths...); err != nil {
    52  		return err
    53  	}
    54  	return c.vars.Error()
    55  }
    56  
    57  // GetStore get configmap of workflow context.
    58  func (c ViewContext) GetStore() *corev1.ConfigMap {
    59  	return nil
    60  }
    61  
    62  // GetMutableValue get mutable data from workflow context.
    63  func (c ViewContext) GetMutableValue(_ ...string) string {
    64  	return ""
    65  }
    66  
    67  // SetMutableValue set mutable data in workflow context config map.
    68  func (c ViewContext) SetMutableValue(_ string, _ ...string) {
    69  }
    70  
    71  // IncreaseCountValueInMemory increase count in workflow context memory store.
    72  func (c ViewContext) IncreaseCountValueInMemory(_ ...string) int {
    73  	return 0
    74  }
    75  
    76  // SetValueInMemory set data in workflow context memory store.
    77  func (c ViewContext) SetValueInMemory(_ interface{}, _ ...string) {
    78  }
    79  
    80  // GetValueInMemory get data in workflow context memory store.
    81  func (c ViewContext) GetValueInMemory(_ ...string) (interface{}, bool) {
    82  	return "", true
    83  }
    84  
    85  // DeleteValueInMemory delete data in workflow context memory store.
    86  func (c ViewContext) DeleteValueInMemory(_ ...string) {
    87  }
    88  
    89  // DeleteMutableValue delete mutable data in workflow context.
    90  func (c ViewContext) DeleteMutableValue(_ ...string) {
    91  }
    92  
    93  // Commit the workflow context and persist it's content.
    94  func (c ViewContext) Commit() error {
    95  	return errors.New("not support func Commit")
    96  }
    97  
    98  // MakeParameter make 'value' with string
    99  func (c ViewContext) MakeParameter(parameter string) (*value.Value, error) {
   100  	if parameter == "" {
   101  		parameter = "{}"
   102  	}
   103  
   104  	return c.vars.MakeValue(parameter)
   105  }
   106  
   107  // StoreRef return the store reference of workflow context.
   108  func (c ViewContext) StoreRef() *corev1.ObjectReference {
   109  	return nil
   110  }