| /* |
| * Copyright 2016 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.oplink; |
| |
| 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.slf4j.Logger; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| import static org.onosproject.drivers.oplink.OplinkNetconfUtility.*; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Flow rule programmable behaviour for oplink optical netconf devices. |
| */ |
| public class OplinkOpticalFlowRuleProgrammable |
| extends AbstractHandlerBehaviour implements FlowRuleProgrammable { |
| |
| // key |
| public static final String KEY_CHID = "wavelength-id"; |
| public static final String KEY_SRC = "source"; |
| public static final String KEY_DST = "destination"; |
| public static final String KEY_SRC_PORTID = String.format("%s.%s", KEY_SRC, KEY_PORTID); |
| public static final String KEY_SRC_CHID = String.format("%s.%s", KEY_SRC, KEY_CHID); |
| public static final String KEY_DST_PORTID = String.format("%s.%s", KEY_DST, KEY_PORTID); |
| |
| // log |
| private static final Logger log = getLogger(OplinkOpticalFlowRuleProgrammable.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_OPENOPTICALDEV_XMLNS)) |
| .append(xmlEmpty(KEY_CONNS)) |
| .append(xmlClose(KEY_OPENOPTICALDEV)) |
| .toString(); |
| } |
| |
| private Collection<FlowEntry> parseConnections() { |
| log.debug("Fetch connections..."); |
| String reply = netconfGet(handler(), getConnectionsFilter()); |
| List<HierarchicalConfiguration> subtrees = configsAt(reply, KEY_DATA_CONNS); |
| Collection<FlowEntry> list = new ArrayList<>(); |
| for (HierarchicalConfiguration connection : subtrees) { |
| list.add(new DefaultFlowEntry(parseConnection(connection), FlowEntry.FlowEntryState.ADDED)); |
| } |
| return list; |
| } |
| |
| private FlowRule parseConnection(HierarchicalConfiguration cfg) { |
| return OplinkOpticalUtility.toFlowRule(this, |
| PortNumber.portNumber(cfg.getString(KEY_SRC_PORTID)), |
| PortNumber.portNumber(cfg.getString(KEY_DST_PORTID)), |
| cfg.getInt(KEY_SRC_CHID)); |
| |
| } |
| |
| private Collection<FlowRule> applyConnections(Collection<FlowRule> rules) { |
| return rules.stream() |
| .filter(c -> applyConnection(c)) |
| .collect(Collectors.toList()); |
| } |
| |
| private boolean applyConnection(FlowRule rule) { |
| log.debug("Applying connection {}", rule); |
| OplinkCrossConnect crossConnect = OplinkOpticalUtility.fromFlowRule(this, rule); |
| // Build xml |
| String connID = Integer.toString(crossConnect.getChannel()); |
| String cfg = new StringBuilder(xmlOpen(KEY_OPENOPTICALDEV_XMLNS)) |
| .append(xmlOpen(KEY_CONNS)) |
| .append(xml(KEY_CONNID, connID)) |
| .append(xmlOpen(KEY_SRC)) |
| .append(xml(KEY_PORTID, crossConnect.getInPort().name())) |
| .append(xml(KEY_CHID, connID)) |
| .append(xmlClose(KEY_SRC)) |
| .append(xmlOpen(KEY_DST)) |
| .append(xml(KEY_PORTID, crossConnect.getOutPort().name())) |
| .append(xmlClose(KEY_DST)) |
| .append(xml(KEY_CHATT, Integer.toString(crossConnect.getAttenuation()))) |
| .append(xmlClose(KEY_CONNS)) |
| .append(xmlClose(KEY_OPENOPTICALDEV)) |
| .toString(); |
| return netconfEditConfig(handler(), CFG_MODE_MERGE, cfg); |
| } |
| |
| private Collection<FlowRule> removeConnections(Collection<FlowRule> rules) { |
| return rules.stream() |
| .filter(c -> removeConnection(c)) |
| .collect(Collectors.toList()); |
| } |
| |
| private boolean removeConnection(FlowRule rule) { |
| log.debug("Removing connection {}", rule); |
| OplinkCrossConnect crossConnect = OplinkOpticalUtility.fromFlowRule(this, rule); |
| // Build xml |
| String connID = Integer.toString(crossConnect.getChannel()); |
| String cfg = new StringBuilder(xmlOpen(KEY_OPENOPTICALDEV_XMLNS)) |
| .append(xmlOpen(String.format("%s %s", KEY_CONNS, CFG_OPT_DELETE))) |
| .append(xml(KEY_CONNID, connID)) |
| .append(xmlOpen(KEY_SRC)) |
| .append(xml(KEY_PORTID, crossConnect.getInPort().name())) |
| .append(xml(KEY_CHID, connID)) |
| .append(xmlClose(KEY_SRC)) |
| .append(xmlClose(KEY_CONNS)) |
| .append(xmlClose(KEY_OPENOPTICALDEV)) |
| .toString(); |
| return netconfEditConfig(handler(), CFG_MODE_NONE, cfg); |
| } |
| } |