2 * Copyright © 2017 Ericsson, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.netvirt.sfc.classifier.providers;
11 import java.util.List;
12 import java.util.Optional;
13 import java.util.stream.Collectors;
14 import javax.inject.Inject;
15 import javax.inject.Singleton;
16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
18 import org.opendaylight.genius.mdsalutil.MDSALUtil;
19 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.common.rev151017.RspName;
20 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.common.rev151017.SfName;
21 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.common.rev151017.SfpName;
22 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.RenderedServicePaths;
23 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.rendered.service.paths.RenderedServicePath;
24 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.rendered.service.paths.RenderedServicePathKey;
25 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.rendered.service.paths.rendered.service.path.RenderedServicePathHop;
26 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sf.rev140701.ServiceFunctions;
27 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sf.rev140701.service.function.base.SfDataPlaneLocator;
28 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sf.rev140701.service.functions.ServiceFunction;
29 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sf.rev140701.service.functions.ServiceFunctionKey;
30 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sfp.rev140701.ServiceFunctionPathsState;
31 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sfp.rev140701.service.function.paths.state.ServiceFunctionPathState;
32 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sfp.rev140701.service.function.paths.state.ServiceFunctionPathStateKey;
33 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.sfc.sff.logical.rev160620.LogicalInterfaceLocator;
34 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.sfc.sff.logical.rev160620.service.functions.service.function.sf.data.plane.locator.locator.type.LogicalInterface;
35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
36 import org.slf4j.Logger;
37 import org.slf4j.LoggerFactory;
40 public class SfcProvider {
42 private static final Logger LOG = LoggerFactory.getLogger(SfcProvider.class);
43 private final DataBroker dataBroker;
46 public SfcProvider(final DataBroker dataBroker) {
47 this.dataBroker = dataBroker;
50 public Optional<RenderedServicePath> getRenderedServicePath(String rspName) {
51 RenderedServicePathKey renderedServicePathKey = new RenderedServicePathKey(new RspName(rspName));
52 InstanceIdentifier<RenderedServicePath> rspIid = InstanceIdentifier.builder(RenderedServicePaths.class)
53 .child(RenderedServicePath.class, renderedServicePathKey).build();
56 return MDSALUtil.read(dataBroker, LogicalDatastoreType.OPERATIONAL, rspIid).toJavaUtil();
59 public Optional<RenderedServicePath> getRenderedServicePathFromSfc(String sfcName) {
60 Optional<RenderedServicePath> rsp = Optional.empty();
62 // TODO need to finish this
67 public Optional<List<String>> readServicePathState(String sfpName) {
68 ServiceFunctionPathStateKey serviceFunctionPathStateKey = new ServiceFunctionPathStateKey(new SfpName(sfpName));
69 InstanceIdentifier<ServiceFunctionPathState> sfpIiD;
70 sfpIiD = InstanceIdentifier.builder(ServiceFunctionPathsState.class)
71 .child(ServiceFunctionPathState.class, serviceFunctionPathStateKey)
73 return MDSALUtil.read(dataBroker, LogicalDatastoreType.OPERATIONAL, sfpIiD)
75 .map(ServiceFunctionPathState::getSfpRenderedServicePath)
76 .map(sfpRenderedServicePaths -> sfpRenderedServicePaths.stream()
77 .map(sfpRenderedServicePath -> sfpRenderedServicePath.getName().getValue())
78 .collect(Collectors.toList()));
81 public Optional<String> getFirstHopSfInterfaceFromRsp(RenderedServicePath rsp) {
82 return getRspFirstHop(rsp).flatMap(this::getHopSfInterface);
85 public Optional<String> getLastHopSfInterfaceFromRsp(RenderedServicePath rsp) {
86 return getRspLastHop(rsp).flatMap(this::getHopSfInterface);
89 public Optional<String> getHopSfInterface(RenderedServicePathHop hop) {
91 LOG.trace("getHopSfInterface of hop {}", hop);
93 SfName sfName = hop.getServiceFunctionName();
95 LOG.warn("getHopSfInterface hop has no SF");
96 return Optional.empty();
99 Optional<ServiceFunction> sf = getServiceFunction(sfName);
100 if (!sf.isPresent()) {
101 LOG.warn("getHopSfInterface SF [{}] does not exist", sfName.getValue());
102 return Optional.empty();
105 List<SfDataPlaneLocator> sfDplList = sf.get().getSfDataPlaneLocator();
106 if (sfDplList == null || sfDplList.isEmpty()) {
107 LOG.warn("getHopSfInterface SF [{}] has no SfDpl", sfName.getValue());
108 return Optional.empty();
111 // Get the first LogicalInterface locator, if there is one
112 for (SfDataPlaneLocator sfDpl : sfDplList) {
113 if (sfDpl.getLocatorType() instanceof LogicalInterface) {
114 LogicalInterfaceLocator locator = (LogicalInterfaceLocator) sfDpl.getLocatorType();
115 if (locator != null) {
116 return Optional.ofNullable(locator.getInterfaceName());
121 return Optional.empty();
124 private Optional<ServiceFunction> getServiceFunction(SfName name) {
125 ServiceFunctionKey serviceFunctionKey = new ServiceFunctionKey(new SfName(name));
126 InstanceIdentifier<ServiceFunction> sfIid = InstanceIdentifier.builder(ServiceFunctions.class)
127 .child(ServiceFunction.class, serviceFunctionKey).build();
129 return MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, sfIid).toJavaUtil();
132 private Optional<RenderedServicePathHop> getRspFirstHop(RenderedServicePath rsp) {
133 List<RenderedServicePathHop> hops = rsp.getRenderedServicePathHop();
134 if (hops == null || hops.isEmpty()) {
135 LOG.warn("getRspFirstHop RSP [{}] has no hops list", rsp.getName().getValue());
136 return Optional.empty();
139 return Optional.ofNullable(hops.get(0));
142 private Optional<RenderedServicePathHop> getRspLastHop(RenderedServicePath rsp) {
143 List<RenderedServicePathHop> hops = rsp.getRenderedServicePathHop();
144 if (hops == null || hops.isEmpty()) {
145 LOG.warn("getRspLastHop RSP [{}] has no hops list", rsp.getName().getValue());
146 return Optional.empty();
149 return Optional.ofNullable(hops.get(hops.size() - 1));