| /* |
| * Copyright 2018-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.onosproject.odtn.internal; |
| |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.ElementId; |
| import org.onosproject.odtn.TapiResolver; |
| import org.onosproject.odtn.utils.tapi.TapiNepRef; |
| import org.onosproject.odtn.utils.tapi.TapiNodeRef; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.slf4j.Logger; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.NoSuchElementException; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * OSGi Component for ODTN TAPI resolver application. |
| */ |
| @Component(immediate = true, service = TapiResolver.class) |
| public class DefaultTapiResolver implements TapiResolver { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| protected TapiDataProducer dataProvider = new DcsBasedTapiDataProducer(); |
| |
| private List<TapiNodeRef> tapiNodeRefList = new CopyOnWriteArrayList<>(); |
| private List<TapiNepRef> tapiNepRefList = new CopyOnWriteArrayList<>(); |
| |
| /** |
| * When source (e.g. DCS) is updated, set true |
| * When cache update completed successfully, set false |
| * <p> |
| * This flag takes effect when cache update failed with exception, |
| * this remains to be true so the cache update process conducts again |
| */ |
| private Boolean isDirty = false; |
| |
| /** |
| * When source (e.g. DCS) is updated, set true |
| * When cache update started, set false |
| * <p> |
| * This flag takes effect when source updated during cache updating |
| * this forces cache update again at the next request |
| */ |
| private Boolean sourceUpdated = false; |
| |
| @Activate |
| public void activate() { |
| log.info("Started"); |
| dataProvider.init(); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public boolean hasNodeRef(ElementId deviceId) { |
| updateCache(); |
| return tapiNodeRefList.stream() |
| .anyMatch(node -> node.getDeviceId().equals(deviceId)); |
| } |
| |
| @Override |
| public boolean hasNepRef(ConnectPoint cp) { |
| updateCache(); |
| return tapiNepRefList.stream() |
| .anyMatch(nep -> nep.getConnectPoint().equals(cp)); |
| } |
| |
| @Override |
| public boolean hasNepRef(String sipId) { |
| updateCache(); |
| return tapiNepRefList.stream() |
| .anyMatch(nep -> nep.getSipId() != null && nep.getSipId().equals(sipId)); |
| } |
| |
| @Override |
| public TapiNodeRef getNodeRef(TapiNodeRef nodeRef) throws NoSuchElementException { |
| updateCache(); |
| TapiNodeRef ret = null; |
| try { |
| ret = tapiNodeRefList.stream() |
| .filter(nodeRef::equals) |
| .findFirst().get(); |
| } catch (NoSuchElementException e) { |
| log.error("Node not found of {}", nodeRef); |
| throw e; |
| } |
| return ret; |
| } |
| |
| @Override |
| public TapiNodeRef getNodeRef(ElementId deviceId) throws NoSuchElementException { |
| updateCache(); |
| TapiNodeRef ret = null; |
| try { |
| ret = tapiNodeRefList.stream() |
| .filter(node -> node.getDeviceId() != null && node.getDeviceId().equals(deviceId)) |
| .findFirst().get(); |
| } catch (NoSuchElementException e) { |
| log.error("Node not found associated with {}", deviceId); |
| throw e; |
| } |
| return ret; |
| } |
| |
| @Override |
| public List<TapiNodeRef> getNodeRefs() { |
| updateCache(); |
| return new ArrayList<>(tapiNodeRefList); |
| } |
| |
| @Override |
| public List<TapiNodeRef> getNodeRefs(Map<String, String> filter) { |
| updateCache(); |
| Stream<TapiNodeRef> filterStream = tapiNodeRefList.stream(); |
| for (String key : filter.keySet()) { |
| filterStream = filterStream.filter(nodeRef -> nodeRef.is(key, filter.get(key))); |
| } |
| return filterStream.collect(Collectors.toList()); |
| } |
| |
| @Override |
| public TapiNepRef getNepRef(TapiNepRef nepRef) throws NoSuchElementException { |
| updateCache(); |
| TapiNepRef ret = null; |
| try { |
| ret = tapiNepRefList.stream() |
| .filter(nepRef::equals) |
| .findFirst().get(); |
| } catch (NoSuchElementException e) { |
| log.error("Nep not found of {}", nepRef); |
| throw e; |
| } |
| return ret; |
| } |
| |
| @Override |
| public TapiNepRef getNepRef(ConnectPoint cp) throws NoSuchElementException { |
| updateCache(); |
| TapiNepRef ret = null; |
| try { |
| ret = tapiNepRefList.stream() |
| .filter(nep -> nep.getConnectPoint() != null && nep.getConnectPoint().equals(cp)) |
| .findFirst().get(); |
| } catch (NoSuchElementException e) { |
| log.error("Nep not found associated with {}", cp); |
| throw e; |
| } |
| return ret; |
| } |
| |
| @Override |
| public TapiNepRef getNepRef(String sipId) throws NoSuchElementException { |
| updateCache(); |
| TapiNepRef ret = null; |
| try { |
| ret = tapiNepRefList.stream() |
| .filter(nep -> nep.getSipId() != null && nep.getSipId().equals(sipId)) |
| .findFirst().get(); |
| } catch (NoSuchElementException e) { |
| log.error("Nep not found associated with {}", sipId); |
| throw e; |
| } |
| return ret; |
| } |
| |
| @Override |
| public List<TapiNepRef> getNepRefs() { |
| updateCache(); |
| return new ArrayList<>(tapiNepRefList); |
| } |
| |
| @Override |
| public List<TapiNepRef> getNepRefs(Map<String, String> filter) { |
| updateCache(); |
| Stream<TapiNepRef> filterStream = tapiNepRefList.stream(); |
| for (String key : filter.keySet()) { |
| filterStream = filterStream.filter(nepRef -> nepRef.is(key, filter.get(key))); |
| } |
| return filterStream.collect(Collectors.toList()); |
| } |
| |
| @Override |
| public void makeDirty() { |
| sourceUpdated = true; |
| isDirty = true; |
| } |
| |
| protected void addNodeRef(TapiNodeRef nodeRef) { |
| tapiNodeRefList.add(nodeRef); |
| log.info("Nodes: {}", tapiNodeRefList); |
| } |
| |
| protected void addNepRef(TapiNepRef nepRef) { |
| tapiNepRefList.add(nepRef); |
| log.info("Neps: {}", tapiNepRefList); |
| } |
| |
| protected void addNodeRefList(List<TapiNodeRef> nodes) { |
| tapiNodeRefList = nodes; |
| log.info("Nodes: {}", tapiNodeRefList); |
| } |
| |
| protected void addNepRefList(List<TapiNepRef> neps) { |
| tapiNepRefList = neps; |
| log.info("Neps: {}", tapiNepRefList); |
| } |
| |
| private void updateCache() { |
| log.info("Dirty: {}, Source updated: {}", isDirty, sourceUpdated); |
| if (isDirty || sourceUpdated) { |
| sourceUpdated = false; |
| clearCache(); |
| dataProvider.updateCacheRequest(this); |
| log.info("Update completed: {}", tapiNodeRefList); |
| isDirty = false; |
| } |
| } |
| |
| private void clearCache() { |
| tapiNodeRefList.clear(); |
| tapiNepRefList.clear(); |
| } |
| } |