| /* |
| * 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.vpls.config; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.JsonNodeFactory; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import com.google.common.collect.Sets; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.net.config.Config; |
| |
| import java.util.Set; |
| |
| /** |
| * Configuration object for VPLS config. |
| */ |
| public class VplsConfig extends Config<ApplicationId> { |
| private static final String VPLS = "vplsNetworks"; |
| private static final String NAME = "name"; |
| private static final String INTERFACE = "interfaces"; |
| |
| /** |
| * Returns a set of configured VPLSs. |
| * |
| * @return set of VPLSs |
| */ |
| public Set<VplsNetworkConfig> vplsNetworks() { |
| Set<VplsNetworkConfig> vpls = Sets.newHashSet(); |
| |
| JsonNode vplsNode = object.get(VPLS); |
| |
| if (vplsNode == null) { |
| return vpls; |
| } |
| |
| vplsNode.forEach(jsonNode -> { |
| Set<String> ifaces = Sets.newHashSet(); |
| jsonNode.path(INTERFACE).forEach(ifacesNode -> |
| ifaces.add(ifacesNode.asText()) |
| ); |
| |
| String name = jsonNode.get(NAME).asText(); |
| |
| vpls.add(new VplsNetworkConfig(name, ifaces)); |
| }); |
| |
| return vpls; |
| } |
| |
| /** |
| * Returns the VPLS configuration given a VPLS name. |
| * |
| * @param name the VPLS name |
| * @return the VPLS configuration if it exists; null otherwise |
| */ |
| public VplsNetworkConfig getVplsWithName(String name) { |
| for (VplsNetworkConfig vpls : vplsNetworks()) { |
| if (vpls.name().equals(name)) { |
| return vpls; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Adds a VPLS to the configuration. |
| * |
| * @param name the name of the VPLS to be added |
| */ |
| public void addVpls(VplsNetworkConfig name) { |
| ObjectNode vplsNode = JsonNodeFactory.instance.objectNode(); |
| |
| vplsNode.put(NAME, name.name()); |
| |
| ArrayNode ifacesNode = vplsNode.putArray(INTERFACE); |
| name.ifaces().forEach(ifacesNode::add); |
| |
| ArrayNode vplsArray = vplsNetworks().isEmpty() ? |
| initVplsConfiguration() : (ArrayNode) object.get(VPLS); |
| vplsArray.add(vplsNode); |
| } |
| |
| /** |
| * Removes a VPLS from the configuration. |
| * |
| * @param name the name of the VPLS to be removed |
| */ |
| public void removeVpls(String name) { |
| ArrayNode vplsArray = (ArrayNode) object.get(VPLS); |
| |
| for (int i = 0; i < vplsArray.size(); i++) { |
| if (vplsArray.get(i).hasNonNull(NAME) && |
| vplsArray.get(i).get(NAME).asText().equals(name)) { |
| vplsArray.remove(i); |
| return; |
| } |
| } |
| } |
| |
| /** |
| * Finds a VPLS with a given network interface. |
| * |
| * @param iface the network interface |
| * @return the VPLS if found; null otherwise |
| */ |
| public VplsNetworkConfig getVplsFromInterface(String iface) { |
| for (VplsNetworkConfig vpls : vplsNetworks()) { |
| if (vpls.isAttached(iface)) { |
| return vpls; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Adds a network interface to a VPLS. |
| * |
| * @param name the name of the VPLS |
| * @param iface the network interface to be added |
| */ |
| public void addInterfaceToVpls(String name, String iface) { |
| JsonNode vplsNode = object.get(VPLS); |
| vplsNode.forEach(jsonNode -> { |
| |
| if (hasNamedNode(jsonNode, name)) { |
| ArrayNode ifacesNode = (ArrayNode) jsonNode.get(INTERFACE); |
| for (int i = 0; i < ifacesNode.size(); i++) { |
| if (ifacesNode.get(i).asText().equals(iface)) { |
| return; // Interface already exists. |
| } |
| } |
| ifacesNode.add(iface); |
| } |
| }); |
| } |
| |
| /** |
| * Removes a network interface from a VPLS. |
| * |
| * @param name the name of the VPLS |
| * @param iface the network interface to be removed |
| */ |
| public void removeInterfaceFromVpls(VplsNetworkConfig name, String iface) { |
| JsonNode vplsNode = object.get(VPLS); |
| vplsNode.forEach(jsonNode -> { |
| if (hasNamedNode(jsonNode, name.name())) { |
| ArrayNode ifacesNode = (ArrayNode) jsonNode.get(INTERFACE); |
| for (int i = 0; i < ifacesNode.size(); i++) { |
| if (ifacesNode.get(i).asText().equals(iface)) { |
| ifacesNode.remove(i); |
| return; |
| } |
| } |
| } |
| }); |
| } |
| |
| /** |
| * States if a JSON node has a "name" attribute and if the value is equal to |
| * the name given. |
| * |
| * @param jsonNode the JSON node |
| * @param name the node name |
| * @return true if the JSON node has a "name" attribute with value equal to |
| * the name given; false otherwise |
| */ |
| private boolean hasNamedNode(JsonNode jsonNode, String name) { |
| return jsonNode.hasNonNull(NAME) && |
| jsonNode.get(NAME).asText().equals(name); |
| } |
| |
| /** |
| * Creates an empty VPLS configuration. |
| * |
| * @return empty ArrayNode to store the VPLS configuration |
| */ |
| private ArrayNode initVplsConfiguration() { |
| return object.putArray(VPLS); |
| } |
| } |