| /* |
| * Copyright 2014 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.onlab.onos.sdnip.config; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import org.onlab.packet.IpAddress; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| |
| // TODO: As a long term solution, a module providing general network configuration to ONOS nodes should be used. |
| |
| /** |
| * SDN-IP Config Reader provides IConfigInfoService by reading from an |
| * SDN-IP configuration file. It must be enabled on the nodes within the cluster |
| * not running SDN-IP. |
| */ |
| public class SdnIpConfigReader implements SdnIpConfigService { |
| |
| private static final Logger log = LoggerFactory.getLogger(SdnIpConfigReader.class); |
| |
| private static final String DEFAULT_CONFIG_FILE = "config/sdnip.json"; |
| private String configFileName = DEFAULT_CONFIG_FILE; |
| //private Map<String, Interface> interfaces; |
| // We call the BGP routers in our SDN network the BGP speakers, and call |
| // the BGP routers outside our SDN network the BGP peers. |
| private Map<String, BgpSpeaker> bgpSpeakers; |
| private Map<IpAddress, BgpPeer> bgpPeers; |
| //private InvertedRadixTree<Interface> interfaceRoutes; |
| |
| /** |
| * Reads the info contained in the configuration file. |
| * |
| * @param configFilename The name of configuration file for SDN-IP application. |
| */ |
| private void readConfiguration(String configFilename) { |
| File gatewaysFile = new File(configFilename); |
| ObjectMapper mapper = new ObjectMapper(); |
| |
| try { |
| Configuration config = mapper.readValue(gatewaysFile, Configuration.class); |
| /*interfaces = new ConcurrentHashMap<>(); |
| for (Interface intf : config.getInterfaces()) { |
| interfaces.put(intf.getName(), intf); |
| }*/ |
| bgpSpeakers = new ConcurrentHashMap<>(); |
| for (BgpSpeaker speaker : config.getBgpSpeakers()) { |
| bgpSpeakers.put(speaker.name(), speaker); |
| } |
| bgpPeers = new ConcurrentHashMap<>(); |
| for (BgpPeer peer : config.getPeers()) { |
| bgpPeers.put(peer.ipAddress(), peer); |
| } |
| } catch (IOException e) { |
| log.error("Error reading JSON file", e); |
| //throw new ConfigurationRuntimeException("Error in JSON file", e); |
| } |
| |
| // Populate the interface InvertedRadixTree |
| /*for (Interface intf : interfaces.values()) { |
| Ip4Prefix prefix = intf.getIp4Prefix(); |
| String binaryString = RouteEntry.createBinaryString(prefix); |
| interfaceRoutes.put(binaryString, intf); |
| }*/ |
| } |
| |
| /* |
| * To find the Interface which has longest matchable IP prefix (sub-network |
| * prefix) to next hop IP address. |
| * |
| * @param address the IP address of next hop router |
| * @return the Interface which has longest matchable IP prefix |
| */ |
| /*private Interface longestInterfacePrefixMatch(IpAddress address) { |
| Ip4Prefix prefixToSearchFor = |
| new Ip4Prefix(address, (short) Ip4Address.BIT_LENGTH); |
| String binaryString = RouteEntry.createBinaryString(prefixToSearchFor); |
| |
| Iterator<Interface> it = |
| interfaceRoutes.getValuesForKeysPrefixing(binaryString).iterator(); |
| Interface intf = null; |
| // Find the last prefix, which will be the longest prefix |
| while (it.hasNext()) { |
| intf = it.next(); |
| } |
| |
| return intf; |
| }*/ |
| |
| /*@Override |
| public Interface getOutgoingInterface(IpAddress dstIpAddress) { |
| return longestInterfacePrefixMatch(dstIpAddress); |
| }*/ |
| |
| public void init() { |
| //interfaceRoutes = new ConcurrentInvertedRadixTree<>( |
| //new DefaultByteArrayNodeFactory()); |
| |
| // Reading config values |
| /*String configFilenameParameter = context.getConfigParams(this).get("configfile"); |
| if (configFilenameParameter != null) { |
| currentConfigFilename = configFilenameParameter; |
| }*/ |
| log.debug("Config file set to {}", configFileName); |
| |
| readConfiguration(configFileName); |
| } |
| |
| /*@Override |
| public Map<String, Interface> getInterfaces() { |
| return Collections.unmodifiableMap(interfaces); |
| }*/ |
| |
| @Override |
| public Map<String, BgpSpeaker> getBgpSpeakers() { |
| return Collections.unmodifiableMap(bgpSpeakers); |
| } |
| |
| @Override |
| public Map<IpAddress, BgpPeer> getBgpPeers() { |
| return Collections.unmodifiableMap(bgpPeers); |
| } |
| |
| static String dpidToUri(String dpid) { |
| return "of:" + dpid.replace(":", ""); |
| } |
| } |