Carmelo Cascone | 00a5996 | 2017-06-16 17:51:49 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2017-present 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 | |
| 17 | package org.onosproject.net.pi.impl; |
| 18 | |
| 19 | import org.onlab.util.ImmutableByteSequence; |
| 20 | import org.onosproject.net.flow.criteria.Criterion; |
| 21 | import org.onosproject.net.flow.criteria.EthCriterion; |
| 22 | import org.onosproject.net.flow.criteria.EthTypeCriterion; |
| 23 | import org.onosproject.net.flow.criteria.IPCriterion; |
| 24 | import org.onosproject.net.flow.criteria.PortCriterion; |
| 25 | |
| 26 | import static org.onlab.util.ImmutableByteSequence.ByteSequenceTrimException; |
| 27 | import static org.onlab.util.ImmutableByteSequence.copyFrom; |
| 28 | |
| 29 | /** |
| 30 | * Factory class of criterion translator implementations. |
| 31 | */ |
| 32 | final class CriterionTranslators { |
| 33 | |
| 34 | /** |
| 35 | * Translator of PortCriterion. |
| 36 | */ |
| 37 | static final class PortCriterionTranslator extends AbstractCriterionTranslator { |
| 38 | @Override |
| 39 | public void init(Criterion criterion, int bitWidth) throws ByteSequenceTrimException { |
| 40 | PortCriterion c = (PortCriterion) criterion; |
| 41 | initAsExactMatch(copyFrom(c.port().toLong()), bitWidth); |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Translator of EthTypeCriterion. |
| 47 | */ |
| 48 | static final class EthTypeCriterionTranslator extends AbstractCriterionTranslator { |
| 49 | @Override |
| 50 | public void init(Criterion criterion, int bitWidth) throws ByteSequenceTrimException { |
| 51 | EthTypeCriterion c = (EthTypeCriterion) criterion; |
| 52 | initAsExactMatch(copyFrom(c.ethType().toShort()), bitWidth); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Translator of EthCriterion. |
| 58 | */ |
| 59 | static final class EthCriterionTranslator extends AbstractCriterionTranslator { |
| 60 | @Override |
| 61 | public void init(Criterion criterion, int bitWidth) throws ByteSequenceTrimException { |
| 62 | EthCriterion c = (EthCriterion) criterion; |
| 63 | ImmutableByteSequence value = copyFrom(c.mac().toBytes()); |
| 64 | if (c.mask() == null) { |
| 65 | initAsExactMatch(value, bitWidth); |
| 66 | } else { |
| 67 | ImmutableByteSequence mask = copyFrom(c.mask().toBytes()); |
| 68 | initAsTernaryMatch(value, mask, bitWidth); |
| 69 | } |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Translator of IpCriterion. |
| 75 | */ |
| 76 | static final class IpCriterionTranslator extends AbstractCriterionTranslator { |
| 77 | public void init(Criterion criterion, int bitWidth) throws ByteSequenceTrimException { |
| 78 | IPCriterion c = (IPCriterion) criterion; |
| 79 | initAsLpm(copyFrom(c.ip().address().toOctets()), c.ip().prefixLength(), bitWidth); |
| 80 | } |
| 81 | } |
| 82 | } |