| /* |
| * Copyright 2017 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.drivers.polatis.netconf; |
| |
| import org.onosproject.yang.gen.v1.opticalswitch.rev20170804.opticalswitch.CrossConnects; |
| import org.onosproject.yang.gen.v1.opticalswitch.rev20170804.opticalswitch.crossconnects.Pair; |
| |
| import com.google.common.collect.ImmutableList; |
| |
| import org.apache.commons.configuration.HierarchicalConfiguration; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| import org.onosproject.net.flow.DefaultFlowEntry; |
| import org.onosproject.net.flow.FlowEntry; |
| import org.onosproject.net.flow.FlowRule; |
| import org.onosproject.net.flow.FlowRuleProgrammable; |
| import org.onosproject.netconf.NetconfException; |
| import org.slf4j.Logger; |
| |
| import java.util.Collection; |
| import java.util.Date; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| |
| import static org.onosproject.drivers.polatis.netconf.PolatisNetconfUtility.netconfGet; |
| import static org.onosproject.drivers.polatis.netconf.PolatisNetconfUtility.netconfEditConfig; |
| import static org.onosproject.drivers.polatis.netconf.PolatisNetconfUtility.opticalRevision; |
| import static org.onosproject.drivers.polatis.netconf.PolatisNetconfUtility.configsAt; |
| import static org.onosproject.drivers.polatis.netconf.PolatisNetconfUtility.xmlOpen; |
| import static org.onosproject.drivers.polatis.netconf.PolatisNetconfUtility.xmlClose; |
| import static org.onosproject.drivers.polatis.netconf.PolatisNetconfUtility.KEY_CONNS; |
| import static org.onosproject.drivers.polatis.netconf.PolatisNetconfUtility.KEY_CONNS_XMLNS; |
| import static org.onosproject.drivers.polatis.netconf.PolatisNetconfUtility.KEY_DATA_CONNS; |
| import static org.onosproject.drivers.polatis.netconf.PolatisNetconfUtility.CFG_MODE_MERGE; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Flow rule programmable behaviour for polatis optical netconf devices. |
| */ |
| public class PolatisFlowRuleProgrammable |
| extends AbstractHandlerBehaviour implements FlowRuleProgrammable { |
| |
| public static final String KEY_CHID = "wavelength-id"; |
| public static final String KEY_SRC = "ingress"; |
| public static final String KEY_DST = "egress"; |
| public static final String KEY_SRC_CHID = String.format("%s.%s", KEY_SRC, KEY_CHID); |
| public static final String CFG_MODE_DELETE = "delete"; |
| public static final String KEY_PAIR = "pair"; |
| public static final String KEY_PAIRS = "pairs"; |
| public static final String KEY_PAIR_DELETE = String.format("%s %s", KEY_PAIR, CFG_MODE_DELETE); |
| public static final String PAIR_COMPAT_REVISION = "2017-08-04"; |
| |
| private static final Logger log = getLogger(PolatisFlowRuleProgrammable.class); |
| |
| @Override |
| public Collection<FlowEntry> getFlowEntries() { |
| return parseConnections(); |
| } |
| |
| @Override |
| public Collection<FlowRule> applyFlowRules(Collection<FlowRule> rules) { |
| return applyConnections(rules); |
| } |
| |
| @Override |
| public Collection<FlowRule> removeFlowRules(Collection<FlowRule> rules) { |
| return removeConnections(rules); |
| } |
| |
| private String getConnectionsFilter() { |
| return new StringBuilder(xmlOpen(KEY_CONNS_XMLNS)) |
| .append(xmlClose(KEY_CONNS)) |
| .toString(); |
| } |
| |
| private Collection<FlowEntry> parseConnections() { |
| log.debug("Fetch connections..."); |
| String reply = netconfGet(handler(), getConnectionsFilter()); |
| final String keyPairMode = String.format("%s.%s", KEY_DATA_CONNS, parseKeyPairCompat()); |
| List<HierarchicalConfiguration> subtrees = configsAt(reply, keyPairMode); |
| ImmutableList.Builder<FlowEntry> connectionsBuilder = ImmutableList.builder(); |
| for (HierarchicalConfiguration connection : subtrees) { |
| connectionsBuilder.add(new DefaultFlowEntry(parseConnection(connection), FlowEntry.FlowEntryState.ADDED)); |
| } |
| return connectionsBuilder.build(); |
| } |
| |
| private FlowRule parseConnection(HierarchicalConfiguration cfg) { |
| return PolatisOpticalUtility.toFlowRule(this, |
| PortNumber.portNumber(cfg.getInt(KEY_SRC)), |
| PortNumber.portNumber(cfg.getInt(KEY_DST))); |
| } |
| |
| private Collection<FlowRule> applyConnections(Collection<FlowRule> rules) { |
| return rules.stream() |
| .filter(c -> editConnection(c, CFG_MODE_MERGE)) |
| .collect(Collectors.toList()); |
| } |
| |
| private boolean editConnection(FlowRule rule, String mode) { |
| CrossConnects crossConnects = PolatisOpticalUtility.fromFlowRule(this, rule); |
| final StringBuilder cfg = new StringBuilder(xmlOpen(KEY_CONNS_XMLNS)); |
| List<Pair> pairs = crossConnects.pair(); |
| final String keyPairCompat = parseKeyPairCompat(); |
| final String keyPairMode = String.format("%s operation=\"%s\"", keyPairCompat, mode); |
| pairs.forEach(p -> { |
| cfg.append(xmlOpen(keyPairMode)) |
| .append(xmlOpen(KEY_SRC)) |
| .append(p.ingress()) |
| .append(xmlClose(KEY_SRC)) |
| .append(xmlOpen(KEY_DST)) |
| .append(p.egress()) |
| .append(xmlClose(KEY_DST)) |
| .append(xmlClose(keyPairCompat)); |
| }); |
| cfg.append(xmlClose(KEY_CONNS)); |
| return netconfEditConfig(handler(), null, cfg.toString()); |
| } |
| |
| private Collection<FlowRule> removeConnections(Collection<FlowRule> rules) { |
| return rules.stream() |
| .filter(c -> editConnection(c, CFG_MODE_DELETE)) |
| .collect(Collectors.toList()); |
| } |
| |
| private String parseKeyPairCompat() { |
| String rev = opticalRevision(handler()); |
| if (rev == null) { |
| throw new RuntimeException(new NetconfException("Failed to obtain the revision.")); |
| } |
| String keyPairCompat; |
| try { |
| SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); |
| Date date = sdf.parse(PAIR_COMPAT_REVISION); |
| |
| if (date.compareTo(sdf.parse(rev)) > 0) { |
| keyPairCompat = KEY_PAIRS; |
| } else { |
| keyPairCompat = KEY_PAIR; |
| } |
| } catch (ParseException e) { |
| throw new RuntimeException(new NetconfException(String.format("Incorrect date format: %s", rev))); |
| } |
| return keyPairCompat; |
| } |
| } |