| /* |
| * Copyright 2017-present Open Networking Foundation |
| * |
| * 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.opencord.sadis.impl; |
| |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.time.Duration; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.onlab.packet.Ip4Address; |
| import org.onlab.packet.VlanId; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.net.config.Config; |
| import org.opencord.sadis.SubscriberAndDeviceInformation; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.fasterxml.jackson.core.JsonParser; |
| import com.fasterxml.jackson.core.JsonProcessingException; |
| import com.fasterxml.jackson.core.ObjectCodec; |
| import com.fasterxml.jackson.databind.DeserializationContext; |
| import com.fasterxml.jackson.databind.JsonDeserializer; |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.module.SimpleModule; |
| |
| /** |
| * Configuration options for the Subscriber And Device Information Service. |
| * |
| * <pre> |
| * "sadis" : { |
| * "integration" : { |
| * "url" : "http://{hostname}{:port}", |
| * "cache" : { |
| * "maxsize" : number of entries, |
| * "entryttl" : duration, i.e. 10s or 1m |
| * } |
| * }, |
| * "entries" : [ |
| * { |
| * "id" : "uniqueid", |
| * "ctag" : int, |
| * "stag" : int, |
| * "nasportid" : string, |
| * "port" : int, |
| * "slot" : int, |
| * "hardwareidentifier" : string, |
| * "ipAddress" : string, |
| * "nasId" : string, |
| * "circuitId" : string, |
| * "removeId" : string |
| * }, ... |
| * ] |
| * } |
| * </pre> |
| */ |
| public class SadisConfig extends Config<ApplicationId> { |
| |
| private final Logger log = LoggerFactory.getLogger(this.getClass()); |
| |
| private static final String SADIS_INTEGRATION = "integration"; |
| private static final String SADIS_CACHE = "cache"; |
| private static final String SADIS_CACHE_SIZE = "maxsize"; |
| private static final String SADIS_CACHE_TTL = "ttl"; |
| private static final String SADIS_URL = "url"; |
| private static final String SADIS_ENTRIES = "entries"; |
| private static final String DEFAULT_CACHE_TTL = "PT0S"; |
| private static final String SUBSCRIBER_ID_SUB_PATTERN = "%s"; |
| |
| /** |
| * Returns SADIS integration URL. |
| * |
| * @return configured URL or null |
| * @throws MalformedURLException |
| * specified URL not valid |
| */ |
| public URL getUrl() throws MalformedURLException { |
| final JsonNode integration = this.object.path(SADIS_INTEGRATION); |
| if (integration.isMissingNode()) { |
| return null; |
| } |
| |
| final JsonNode url = integration.path(SADIS_URL); |
| if (url.isMissingNode()) { |
| return null; |
| } |
| StringBuffer buf = new StringBuffer(SUBSCRIBER_ID_SUB_PATTERN); |
| if (!url.asText().contains(buf)) { |
| log.error("Error in url, missing {}", SUBSCRIBER_ID_SUB_PATTERN); |
| return null; |
| } |
| return new URL(url.asText()); |
| } |
| |
| public int getCacheMaxSize() { |
| final JsonNode integration = this.object.path(SADIS_INTEGRATION); |
| if (integration.isMissingNode()) { |
| return -1; |
| } |
| |
| final JsonNode cache = integration.path(SADIS_CACHE); |
| if (cache.isMissingNode()) { |
| return -1; |
| } |
| |
| return cache.path(SADIS_CACHE_SIZE).asInt(-1); |
| } |
| |
| public Duration getCacheTtl() { |
| final JsonNode integration = this.object.path(SADIS_INTEGRATION); |
| if (integration.isMissingNode()) { |
| return Duration.parse(DEFAULT_CACHE_TTL); |
| } |
| |
| final JsonNode cache = integration.path(SADIS_CACHE); |
| if (cache.isMissingNode()) { |
| return Duration.parse(DEFAULT_CACHE_TTL); |
| } |
| |
| return Duration.parse(cache.path(SADIS_CACHE_TTL).asText(DEFAULT_CACHE_TTL)); |
| } |
| |
| public List<SubscriberAndDeviceInformation> getEntries() { |
| List<SubscriberAndDeviceInformation> result = new ArrayList<SubscriberAndDeviceInformation>(); |
| ObjectMapper mapper = new ObjectMapper(); |
| SimpleModule module = new SimpleModule(); |
| module.addDeserializer(VlanId.class, new VlanIdDeserializer()); |
| module.addDeserializer(Ip4Address.class, new Ip4AddressDeserializer()); |
| mapper.registerModule(module); |
| final JsonNode entries = this.object.path(SADIS_ENTRIES); |
| entries.forEach(entry -> { |
| try { |
| result.add(mapper.readValue(entry.toString(), SubscriberAndDeviceInformation.class)); |
| } catch (IOException e) { |
| log.warn("Unable to parse configuration entry, '{}', error: {}", entry.toString(), e.getMessage()); |
| } |
| }); |
| |
| return result; |
| } |
| |
| public class VlanIdDeserializer extends JsonDeserializer<VlanId> { |
| @Override |
| public VlanId deserialize(JsonParser jp, DeserializationContext ctxt) |
| throws IOException, JsonProcessingException { |
| ObjectCodec oc = jp.getCodec(); |
| JsonNode node = oc.readTree(jp); |
| return VlanId.vlanId((short) node.asInt()); |
| } |
| } |
| |
| public class Ip4AddressDeserializer extends JsonDeserializer<Ip4Address> { |
| @Override |
| public Ip4Address deserialize(JsonParser jp, DeserializationContext ctxt) |
| throws IOException, JsonProcessingException { |
| ObjectCodec oc = jp.getCodec(); |
| JsonNode node = oc.readTree(jp); |
| return Ip4Address.valueOf((String) node.asText()); |
| } |
| } |
| } |