Java tutorial
/* * Copyright 2016-present Open Networking Laboratory * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.onosproject.segmentrouting.config; import com.fasterxml.jackson.databind.JsonNode; import com.fasterxml.jackson.databind.node.ArrayNode; import com.fasterxml.jackson.databind.node.ObjectNode; import com.google.common.collect.ImmutableMap; import org.onlab.packet.Ip4Address; import org.onlab.packet.MacAddress; import org.onosproject.net.DeviceId; import org.onosproject.net.config.Config; import java.util.HashMap; import java.util.HashSet; import java.util.Map; import java.util.Optional; import java.util.Set; /** * Configuration object for Segment Routing Application. */ public class SegmentRoutingDeviceConfig extends Config<DeviceId> { private static final String NAME = "name"; private static final String IP = "routerIp"; private static final String MAC = "routerMac"; private static final String SID = "nodeSid"; private static final String EDGE = "isEdgeRouter"; private static final String ADJSIDS = "adjacencySids"; private static final String ADJSID = "adjSid"; private static final String PORTS = "ports"; @Override public boolean isValid() { return hasOnlyFields(NAME, IP, MAC, SID, EDGE, ADJSIDS, ADJSID, PORTS) && name() != null && routerIp() != null && routerMac() != null && nodeSid() != -1 && isEdgeRouter() != null && adjacencySids() != null; } /** * Gets the name of the router. * * @return Optional name of the router. May be empty if not configured. */ public Optional<String> name() { String name = get(NAME, null); return name != null ? Optional.of(name) : Optional.empty(); } /** * Sets the name of the router. * * @param name name of the router. * @return the config of the router. */ public SegmentRoutingDeviceConfig setName(String name) { return (SegmentRoutingDeviceConfig) setOrClear(NAME, name); } /** * Gets the IP address of the router. * * @return IP address of the router. Or null if not configured. */ public Ip4Address routerIp() { String ip = get(IP, null); return ip != null ? Ip4Address.valueOf(ip) : null; } /** * Sets the IP address of the router. * * @param ip IP address of the router. * @return the config of the router. */ public SegmentRoutingDeviceConfig setRouterIp(String ip) { return (SegmentRoutingDeviceConfig) setOrClear(IP, ip); } /** * Gets the MAC address of the router. * * @return MAC address of the router. Or null if not configured. */ public MacAddress routerMac() { String mac = get(MAC, null); return mac != null ? MacAddress.valueOf(mac) : null; } /** * Sets the MAC address of the router. * * @param mac MAC address of the router. * @return the config of the router. */ public SegmentRoutingDeviceConfig setRouterMac(String mac) { return (SegmentRoutingDeviceConfig) setOrClear(MAC, mac); } /** * Gets the node SID of the router. * * @return node SID of the router. Or -1 if not configured. */ public int nodeSid() { return get(SID, -1); } /** * Sets the node SID of the router. * * @param sid node SID of the router. * @return the config of the router. */ public SegmentRoutingDeviceConfig setNodeSid(int sid) { return (SegmentRoutingDeviceConfig) setOrClear(SID, sid); } /** * Checks if the router is an edge router. * * @return true if the router is an edge router. * false if the router is not an edge router. * null if the value is not configured. */ public Boolean isEdgeRouter() { String isEdgeRouter = get(EDGE, null); return isEdgeRouter != null ? Boolean.valueOf(isEdgeRouter) : null; } /** * Specifies if the router is an edge router. * * @param isEdgeRouter true if the router is an edge router. * @return the config of the router. */ public SegmentRoutingDeviceConfig setIsEdgeRouter(boolean isEdgeRouter) { return (SegmentRoutingDeviceConfig) setOrClear(EDGE, isEdgeRouter); } /** * Gets the adjacency SIDs of the router. * * @return adjacency SIDs of the router. Or null if not configured. */ public Map<Integer, Set<Integer>> adjacencySids() { if (!object.has(ADJSIDS)) { return null; } Map<Integer, Set<Integer>> adjacencySids = new HashMap<>(); ArrayNode adjacencySidsNode = (ArrayNode) object.path(ADJSIDS); for (JsonNode adjacencySidNode : adjacencySidsNode) { int asid = adjacencySidNode.path(ADJSID).asInt(-1); if (asid == -1) { return null; } HashSet<Integer> ports = new HashSet<>(); ArrayNode portsNode = (ArrayNode) adjacencySidNode.path(PORTS); for (JsonNode portNode : portsNode) { int port = portNode.asInt(-1); if (port == -1) { return null; } ports.add(port); } adjacencySids.put(asid, ports); } return ImmutableMap.copyOf(adjacencySids); } /** * Sets the adjacency SIDs of the router. * * @param adjacencySids adjacency SIDs of the router. * @return the config of the router. */ public SegmentRoutingDeviceConfig setAdjacencySids(Map<Integer, Set<Integer>> adjacencySids) { if (adjacencySids == null) { object.remove(ADJSIDS); } else { ArrayNode adjacencySidsNode = mapper.createArrayNode(); adjacencySids.forEach((sid, ports) -> { ObjectNode adjacencySidNode = mapper.createObjectNode(); adjacencySidNode.put(ADJSID, sid); ArrayNode portsNode = mapper.createArrayNode(); ports.forEach(port -> { portsNode.add(port.toString()); }); adjacencySidNode.set(PORTS, portsNode); adjacencySidsNode.add(adjacencySidNode); }); object.set(ADJSIDS, adjacencySidsNode); } return this; } }