| Ting Xu | ce4b645 | 2022-04-24 06:14:25 +0000 | [diff] [blame] | 1 | # Copyright (c) 2022 Intel and/or its affiliates. |
| 2 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 3 | # you may not use this file except in compliance with the License. |
| 4 | # You may obtain a copy of the License at: |
| 5 | # |
| 6 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 7 | # |
| 8 | # Unless required by applicable law or agreed to in writing, software |
| 9 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 10 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 11 | # See the License for the specific language governing permissions and |
| 12 | # limitations under the License. |
| 13 | |
| 14 | |
| 15 | class EdgeAction: |
| 16 | def __init__(self): |
| 17 | self.ToStartObject = None |
| 18 | self.ToExpression = None |
| 19 | self.FromStartObject = None |
| 20 | self.FromExpression = None |
| 21 | |
| 22 | def Create(token): |
| 23 | if token == None: |
| 24 | return None |
| 25 | |
| 26 | dststr = token["dst"] |
| 27 | srcstr = token["src"] |
| 28 | |
| 29 | if srcstr == None or dststr == None: |
| 30 | return None |
| 31 | |
| 32 | action = EdgeAction() |
| 33 | |
| 34 | dststr = dststr.strip() |
| 35 | srcstr = srcstr.strip() |
| 36 | |
| 37 | if dststr.startswith("start."): |
| 38 | action.ToStartObject = True |
| 39 | action.ToExpression = dststr[6:] |
| 40 | elif dststr.startswith("end."): |
| 41 | action.ToStartObject = False |
| 42 | action.ToExpression = dststr[4:] |
| 43 | else: |
| 44 | return None |
| 45 | |
| 46 | if srcstr.startswith("start."): |
| 47 | action.FromStartObject = True |
| 48 | action.FromExpression = srcstr[6:] |
| 49 | elif srcstr.startswith("end."): |
| 50 | action.FromStartObject = False |
| 51 | action.FromExpression = srcstr[4:] |
| 52 | else: |
| 53 | action.FromExpression = srcstr |
| 54 | |
| 55 | return action |