Anton Chigrin | 4af4f87 | 2019-01-14 17:29:56 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2019-present Open Networking Foundation |
| 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.openflow.controller; |
| 17 | |
| 18 | import org.onosproject.net.DeviceId; |
| 19 | import java.util.Objects; |
| 20 | |
| 21 | /** |
| 22 | * Represents to OpenFlow messages classifier. |
| 23 | */ |
| 24 | public final class OpenFlowClassifier { |
| 25 | |
| 26 | private final short ethernetType; |
| 27 | private final int idQueue; |
| 28 | private final DeviceId deviceId; |
| 29 | |
| 30 | /** |
| 31 | * Builder of the OpenFlow classifier. |
| 32 | */ |
| 33 | public static class Builder { |
| 34 | private Short ethernetType = 0; |
| 35 | private int idQueue; |
| 36 | private DeviceId deviceId; |
| 37 | |
| 38 | /** |
| 39 | * Builder constructor for OpenFlow classifier. |
| 40 | * |
| 41 | * @param deviceId the device id |
| 42 | * @param idQueue the queue id |
| 43 | */ |
| 44 | public Builder(DeviceId deviceId, int idQueue) { |
| 45 | this.deviceId = deviceId; |
| 46 | this.idQueue = idQueue; |
| 47 | } |
| 48 | |
| 49 | /** |
| 50 | * Sets the ethernet type for the OpenFlow classifier that will be built. |
| 51 | * |
| 52 | * @param ethernetType the ethernet type |
| 53 | * @return this builder |
| 54 | */ |
| 55 | public Builder ethernetType(short ethernetType) { |
| 56 | this.ethernetType = ethernetType; |
| 57 | return this; |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * Builds the OpenFlow classifier from the accumulated parameters. |
| 62 | * |
| 63 | * @return OpenFlow classifier instance |
| 64 | */ |
| 65 | public OpenFlowClassifier build() { |
| 66 | return new OpenFlowClassifier(this); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | private OpenFlowClassifier(Builder builder) { |
| 71 | this.idQueue = builder.idQueue; |
| 72 | this.ethernetType = builder.ethernetType; |
| 73 | this.deviceId = builder.deviceId; |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Gets the ethernet type matched by the classifier. |
| 78 | * |
| 79 | * @return matched packet ethernet type |
| 80 | */ |
| 81 | public short ethernetType() { |
| 82 | return this.ethernetType; |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * Gets the id of source OpenFlow device matched by the classifier. |
| 87 | * |
| 88 | * @return connected device id |
| 89 | */ |
| 90 | public DeviceId deviceId() { |
| 91 | return this.deviceId; |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * Gets the queue id targeted by the classifier. |
| 96 | * |
| 97 | * @return target queue id |
| 98 | */ |
| 99 | public int idQueue() { |
| 100 | return this.idQueue; |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Compares OpenFlow classifiers. |
| 105 | * |
| 106 | * @param o object that we want to compare to |
| 107 | * @return equality check result |
| 108 | */ |
| 109 | @Override |
| 110 | public boolean equals(Object o) { |
| 111 | if (!(o instanceof OpenFlowClassifier)) { |
| 112 | return false; |
| 113 | } |
| 114 | OpenFlowClassifier classifier = (OpenFlowClassifier) o; |
| 115 | return this.ethernetType == classifier.ethernetType() |
| 116 | && this.idQueue == classifier.idQueue() |
| 117 | && this.deviceId.equals(classifier.deviceId()); |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Calculates hashCode of the OpenFlow Classifier object. |
| 122 | * |
| 123 | * @return hash of the OpenFlow Classifier |
| 124 | */ |
| 125 | @Override |
| 126 | public int hashCode() { |
| 127 | return Objects.hash(deviceId, idQueue, ethernetType); |
| 128 | } |
| 129 | } |