Satish K | f6d87cb | 2015-11-30 19:59:22 +0530 | [diff] [blame] | 1 | /*
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| 2 | * Copyright 2015 Open Networking Laboratory
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 | package org.onosproject.iptopology.api;
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| 17 |
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| 18 | import java.util.Objects;
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| 19 |
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| 20 | import org.onosproject.net.DeviceId;
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| 21 | import org.onosproject.net.ElementId;
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| 22 |
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| 23 | import com.google.common.base.MoreObjects;
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| 24 |
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| 25 | /**
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| 26 | * Abstraction of a network termination point expressed as a pair of the network element identifier and device
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| 27 | * interface.
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| 28 | */
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| 29 | public class TerminationPoint {
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| 30 | private final ElementId elementId;
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| 31 | private final DeviceInterface deviceInterface;
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| 32 |
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| 33 | /**
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| 34 | * Constructor to initialize its parameters.
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| 35 | *
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| 36 | * @param elementId network element identifier
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| 37 | * @param deviceInterface device interface
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| 38 | */
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| 39 | public TerminationPoint(ElementId elementId, DeviceInterface deviceInterface) {
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| 40 | this.elementId = elementId;
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| 41 | this.deviceInterface = deviceInterface;
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| 42 | }
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| 43 |
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| 44 | /**
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| 45 | * Returns the network element identifier.
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| 46 | *
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| 47 | * @return element identifier
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| 48 | */
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| 49 | public ElementId elementId() {
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| 50 | return elementId;
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| 51 | }
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| 52 |
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| 53 | /**
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| 54 | * Returns the identifier of the infrastructure device if the termination
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| 55 | * point belongs to a network element which is indeed an ip
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| 56 | * device.
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| 57 | *
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| 58 | * @return network element identifier as a device identifier
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| 59 | * @throws java.lang.IllegalStateException if termination point is not
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| 60 | * associated with a device
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| 61 | */
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| 62 | public DeviceId deviceId() {
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| 63 | if (elementId instanceof DeviceId) {
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| 64 | return (DeviceId) elementId;
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| 65 | }
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| 66 | throw new IllegalStateException("Termination point not associated " +
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| 67 | "with an ip device");
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| 68 | }
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| 69 |
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| 70 | /**
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| 71 | * Returns Device interface details.
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| 72 | *
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| 73 | * @return device interface details
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| 74 | */
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| 75 | public DeviceInterface deviceInterface() {
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| 76 | return deviceInterface;
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| 77 | }
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| 78 |
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| 79 | @Override
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| 80 | public int hashCode() {
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| 81 | return Objects.hash(elementId, deviceInterface);
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| 82 | }
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| 83 |
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| 84 | @Override
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| 85 | public boolean equals(Object obj) {
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| 86 | if (this == obj) {
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| 87 | return true;
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| 88 | }
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| 89 | if (obj instanceof TerminationPoint) {
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| 90 | final TerminationPoint other = (TerminationPoint) obj;
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| 91 | return Objects.equals(this.elementId, other.elementId)
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| 92 | && Objects.equals(this.deviceInterface, other.deviceInterface);
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| 93 | }
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| 94 | return false;
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| 95 | }
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| 96 |
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| 97 | @Override
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| 98 | public String toString() {
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| 99 | return MoreObjects.toStringHelper(this)
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| 100 | .add("elementId", elementId)
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| 101 | .add("deviceInterface", deviceInterface)
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| 102 | .toString();
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| 103 | }
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| 104 | } |