Sho SHIMIZU | c15ce51 | 2015-05-26 16:54:08 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 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 | package org.onosproject.provider.of.flow.impl; |
| 17 | |
| 18 | import org.onosproject.net.ChannelSpacing; |
| 19 | import org.onosproject.net.GridType; |
Marc De Leenheer | d24420f | 2015-05-27 09:40:59 -0700 | [diff] [blame] | 20 | import org.onosproject.net.OchSignalType; |
Sho SHIMIZU | c15ce51 | 2015-05-26 16:54:08 -0700 | [diff] [blame] | 21 | import org.slf4j.Logger; |
| 22 | import org.slf4j.LoggerFactory; |
| 23 | |
| 24 | /** |
| 25 | * Collection of helper methods to convert protocol agnostic models to values used in OpenFlow spec. |
| 26 | */ |
| 27 | final class FlowModBuilderHelper { |
| 28 | |
| 29 | private static final Logger log = LoggerFactory.getLogger(FlowModBuilderHelper.class); |
| 30 | |
| 31 | // prohibit instantiation |
| 32 | private FlowModBuilderHelper() {} |
| 33 | |
| 34 | /** |
| 35 | * Converts a {@link GridType} to the corresponding byte value defined in |
| 36 | * ONF "Optical Transport Protocol Extensions Version 1.0". |
| 37 | * |
| 38 | * @param type grid type |
| 39 | * @return the byte value corresponding to the specified grid type |
| 40 | * @throws UnsupportedGridTypeException if the specified grid type is not supported |
| 41 | */ |
| 42 | static byte convertGridType(GridType type) { |
| 43 | // See ONF "Optical Transport Protocol Extensions Version 1.0" |
| 44 | // for the following values |
| 45 | switch (type) { |
| 46 | case DWDM: |
| 47 | // OFPGRIDT_DWDM of enum ofp_grid_type |
| 48 | return 1; |
| 49 | case CWDM: |
| 50 | // OFPGRIDT_CWDM of enum ofp_grid_type |
| 51 | return 2; |
| 52 | case FLEX: |
| 53 | // OFPGRIDT_FLEX of enum ofp_grid_type |
| 54 | return 3; |
| 55 | default: |
| 56 | throw new UnsupportedGridTypeException(type); |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * Converts a {@link ChannelSpacing} to the corresponding byte value defined in |
| 62 | * ONF "Optical Transport Protocol Extensions Version 1.0". |
| 63 | * |
| 64 | * @param spacing channel spacing |
| 65 | * @return byte value corresponding to the specified channel spacing |
| 66 | * @throws UnsupportedChannelSpacingException if the specified channel spacing is not supported |
| 67 | */ |
| 68 | static byte convertChannelSpacing(ChannelSpacing spacing) { |
| 69 | // See ONF "Optical Transport Protocol Extensions Version 1.0" |
| 70 | // for the following values |
| 71 | switch (spacing) { |
| 72 | case CHL_100GHZ: |
| 73 | // OFPCS_100GHZ of enum ofp_chl_spacing |
| 74 | return 1; |
| 75 | case CHL_50GHZ: |
| 76 | // OFPCS_50GHZ of enum ofp_chl_spacing |
| 77 | return 2; |
| 78 | case CHL_25GHZ: |
| 79 | // OFPCS_25GHZ of enum ofp_chl_spacing |
| 80 | return 3; |
| 81 | case CHL_12P5GHZ: |
| 82 | // OFPCS_12P5GHZ of enum ofp_chl_spacing |
| 83 | return 4; |
| 84 | case CHL_6P25GHZ: |
| 85 | // OFPCS_6P25GHZ of enum ofp_chl_spacing |
| 86 | return 5; |
| 87 | default: |
| 88 | throw new UnsupportedChannelSpacingException(spacing); |
| 89 | } |
| 90 | } |
Marc De Leenheer | d24420f | 2015-05-27 09:40:59 -0700 | [diff] [blame] | 91 | |
| 92 | /** |
| 93 | * Converts a {@link OchSignalType} to the corresponding byte value. |
| 94 | * |
| 95 | * @param signalType optical signal type |
| 96 | * @return byte value corresponding to the specified OCh signal type |
| 97 | */ |
| 98 | static byte convertOchSignalType(OchSignalType signalType) { |
| 99 | switch (signalType) { |
| 100 | case FIXED_GRID: |
| 101 | return (byte) 1; |
| 102 | case FLEX_GRID: |
| 103 | return (byte) 2; |
| 104 | default: |
| 105 | log.info("OchSignalType {} is not supported", signalType); |
| 106 | return (byte) 0; |
| 107 | } |
| 108 | } |
Sho SHIMIZU | c15ce51 | 2015-05-26 16:54:08 -0700 | [diff] [blame] | 109 | } |