Andreas Papazois | 25a98e7 | 2016-07-28 10:57:15 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-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 | package org.onosproject.cli.net; |
| 17 | |
| 18 | import org.apache.karaf.shell.commands.Argument; |
| 19 | import org.apache.karaf.shell.commands.Command; |
| 20 | import org.onlab.packet.VlanId; |
| 21 | import org.onosproject.cli.AbstractShellCommand; |
| 22 | import org.onosproject.net.ConnectPoint; |
| 23 | import org.onosproject.net.Device; |
| 24 | import org.onosproject.net.DeviceId; |
| 25 | import org.onosproject.net.Port; |
| 26 | import org.onosproject.net.PortNumber; |
| 27 | import org.onosproject.net.behaviour.VlanQuery; |
| 28 | import org.onosproject.net.device.DeviceService; |
| 29 | import org.onosproject.net.driver.DriverHandler; |
| 30 | import org.onosproject.net.driver.DriverService; |
| 31 | |
| 32 | import java.util.ArrayList; |
| 33 | import java.util.Arrays; |
| 34 | import java.util.Set; |
| 35 | |
| 36 | /** |
| 37 | * Command to show the list of unused vlan-ids. |
| 38 | */ |
| 39 | @Command(scope = "onos", name = "port-query-vlans", |
| 40 | description = "Lists all unused VLAN-IDs on port") |
| 41 | public class PortQueryVlansCommand extends AbstractShellCommand { |
| 42 | |
| 43 | private static final String AVAIL_VLANS = "VLAN-ID: %s"; |
| 44 | private static final String VLAN_NOT_AVAILABLE = "No unused VLAN-ID"; |
| 45 | private static final String FMT = "port=%s, state=%s, type=%s, speed=%s%s"; |
| 46 | private static final String NO_SUPPORT = "Device not supporting VLAN-ID retrieval"; |
| 47 | private static final String FAILURE = "Failed to retrieve VLAN information: "; |
| 48 | |
| 49 | @Argument(index = 0, name = "port", |
| 50 | description = "Port Description", |
| 51 | required = true, multiValued = true) |
| 52 | private String[] ports; |
| 53 | |
| 54 | |
| 55 | @Override |
| 56 | protected void execute() { |
| 57 | DeviceService service = get(DeviceService.class); |
| 58 | for (String portStr : ports) { |
| 59 | ConnectPoint connectPoint = ConnectPoint.deviceConnectPoint(portStr); |
| 60 | Port port = service.getPort(connectPoint.deviceId(), connectPoint.port()); |
| 61 | printPort(port); |
| 62 | printVlans(port); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | private void printPort(Port port) { |
| 67 | String portName = portName(port.number()); |
| 68 | Object portIsEnabled = port.isEnabled() ? "enabled" : "disabled"; |
| 69 | String portType = port.type().toString().toLowerCase(); |
| 70 | String annotations = annotations(port.annotations()); |
| 71 | print(FMT, portName, portIsEnabled, portType, port.portSpeed(), annotations); |
| 72 | } |
| 73 | |
| 74 | private String portName(PortNumber port) { |
| 75 | return port.equals(PortNumber.LOCAL) ? "local" : port.toString(); |
| 76 | } |
| 77 | |
| 78 | private void printVlans(Port port) { |
| 79 | DeviceService deviceService = get(DeviceService.class); |
| 80 | DriverService driverService = get(DriverService.class); |
| 81 | |
| 82 | DeviceId deviceId = (DeviceId) port.element().id(); |
| 83 | Device device = deviceService.getDevice(deviceId); |
| 84 | |
| 85 | if (!device.is(VlanQuery.class)) { |
| 86 | // The relevant behavior is not supported by the device. |
| 87 | print(NO_SUPPORT); |
| 88 | return; |
| 89 | } |
| 90 | |
| 91 | DriverHandler h = driverService.createHandler(deviceId); |
| 92 | VlanQuery vlanQuery = h.behaviour(VlanQuery.class); |
| 93 | |
| 94 | try { |
| 95 | Set<VlanId> vlanIds = vlanQuery.queryVlanIds(port.number()); |
| 96 | |
| 97 | if (vlanIds.isEmpty()) { |
| 98 | print(VLAN_NOT_AVAILABLE); |
| 99 | } else { |
| 100 | print(AVAIL_VLANS, getRanges(vlanIds).toString()); |
| 101 | } |
| 102 | } catch (Exception e) { |
| 103 | print(FAILURE + e.getMessage()); |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | private static ArrayList getRanges(Set<VlanId> vlans) { |
| 108 | short i = 0; |
| 109 | short[] vlanArray = new short[vlans.size()]; |
| 110 | for (VlanId vlanId : vlans) { |
| 111 | vlanArray[i++] = vlanId.toShort(); |
| 112 | } |
| 113 | Arrays.sort(vlanArray); |
| 114 | |
| 115 | ArrayList ranges = new ArrayList(); |
| 116 | short rStart = 0; |
| 117 | short rEnd = 0; |
| 118 | |
| 119 | for (i = 2; i < vlanArray.length; i++) { |
| 120 | if (vlanArray[i] == vlanArray[i - 1] + 1 && |
| 121 | vlanArray[i] == vlanArray[i - 2] + 2) { |
| 122 | // Three consecutive VLAN-IDs found, so range exists. |
| 123 | if (rEnd == vlanArray[i - 1]) { |
| 124 | // Range already exists, so step the end. |
| 125 | rEnd = vlanArray[i]; |
| 126 | } else { |
| 127 | // Setup a new range. |
| 128 | rStart = vlanArray[i - 2]; |
| 129 | rEnd = vlanArray[i]; |
| 130 | } |
| 131 | } else { |
| 132 | // Not in a range. |
| 133 | if (rEnd == vlanArray[i - 1]) { |
| 134 | // Previous range is discontinued and is stored. |
| 135 | ranges.add(rStart + "-" + rEnd); |
| 136 | } else { |
| 137 | // No previous range. |
| 138 | if (vlanArray[i] != vlanArray[i - 1] + 1) { |
| 139 | // Current VLAN-ID is not 2nd consecutive. |
| 140 | if (vlanArray[i - 1] == vlanArray[i - 2] + 1) { |
| 141 | // The 2 previous VLAN-IDs were consequetive, so 2nd |
| 142 | // last is stored separately. |
| 143 | ranges.add(vlanArray[i - 2]); |
| 144 | } |
| 145 | // Previous is stored, when current is not consequetive. |
| 146 | ranges.add(vlanArray[i - 1]); |
| 147 | } |
| 148 | } |
| 149 | } |
| 150 | } |
| 151 | if (rEnd == vlanArray[vlanArray.length - 1]) { |
| 152 | // Array finished with a range. |
| 153 | ranges.add(rStart + "-" + rEnd); |
| 154 | } else { |
| 155 | if (vlanArray[vlanArray.length - 1] == vlanArray[vlanArray.length - 2] + 1) { |
| 156 | // Previous is stored, when current is consequetive. |
| 157 | ranges.add(vlanArray[vlanArray.length - 2]); |
| 158 | } |
| 159 | // Last item is stored |
| 160 | ranges.add(vlanArray[vlanArray.length - 1]); |
| 161 | } |
| 162 | return ranges; |
| 163 | } |
| 164 | } |