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 javax.inject.Inject;
14 import javax.inject.Singleton;
15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
17 import org.opendaylight.genius.mdsalutil.MDSALUtil;
18 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.common.rev151017.RspName;
19 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.common.rev151017.SfName;
20 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.RenderedServicePaths;
21 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.rendered.service.paths.RenderedServicePath;
22 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.rendered.service.paths.RenderedServicePathKey;
23 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.rsp.rev140701.rendered.service.paths.rendered.service.path.RenderedServicePathHop;
24 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sf.rev140701.ServiceFunctions;
25 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sf.rev140701.service.function.base.SfDataPlaneLocator;
26 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sf.rev140701.service.functions.ServiceFunction;
27 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.sfc.sf.rev140701.service.functions.ServiceFunctionKey;
28 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.sfc.sff.logical.rev160620.LogicalInterfaceLocator;
29 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;
30 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
31 import org.slf4j.Logger;
32 import org.slf4j.LoggerFactory;
35 public class SfcProvider {
37 private static final Logger LOG = LoggerFactory.getLogger(SfcProvider.class);
38 private final DataBroker dataBroker;
41 public SfcProvider(final DataBroker dataBroker) {
42 this.dataBroker = dataBroker;
45 public Optional<RenderedServicePath> getRenderedServicePath(String rspName) {
46 RenderedServicePathKey renderedServicePathKey = new RenderedServicePathKey(new RspName(rspName));
47 InstanceIdentifier<RenderedServicePath> rspIid = InstanceIdentifier.builder(RenderedServicePaths.class)
48 .child(RenderedServicePath.class, renderedServicePathKey).build();
51 return Optional.ofNullable(MDSALUtil.read(dataBroker, LogicalDatastoreType.OPERATIONAL, rspIid).orNull());
54 public Optional<RenderedServicePath> getRenderedServicePathFromSfc(String sfcName) {
55 Optional<RenderedServicePath> rsp = Optional.empty();
57 // TODO need to finish this
62 // This is for Logical SFFs
63 public Optional<String> getFirstHopSfInterfaceFromRsp(RenderedServicePath rsp) {
64 Optional<RenderedServicePathHop> firstHop = getRspFirstHop(rsp);
65 if (!firstHop.isPresent()) {
66 LOG.warn("getFirstHopSfInterfaceFromRsp RSP [{}] cant get first hop", rsp.getName().getValue());
67 return Optional.empty();
70 SfName sfName = firstHop.get().getServiceFunctionName();
72 LOG.warn("getFirstHopSfInterfaceFromRsp RSP [{}] first hop has no SF", rsp.getName().getValue());
73 return Optional.empty();
76 Optional<ServiceFunction> sf = getServiceFunction(sfName);
77 if (!sf.isPresent()) {
78 LOG.warn("getFirstHopSfInterfaceFromRsp RSP [{}] SF [{}] does not exist", rsp.getName().getValue(),
80 return Optional.empty();
83 List<SfDataPlaneLocator> sfDplList = sf.get().getSfDataPlaneLocator();
84 if (sfDplList == null || sfDplList.isEmpty()) {
85 LOG.warn("getFirstHopSfInterfaceFromRsp RSP [{}] SF [{}] has no SfDpl", rsp.getName().getValue(),
87 return Optional.empty();
90 // Get the first LogicalInterface locator, if there is one
91 for (SfDataPlaneLocator sfDpl : sfDplList) {
92 if (sfDpl.getLocatorType() instanceof LogicalInterface) {
93 LogicalInterfaceLocator locator = (LogicalInterfaceLocator) sfDpl.getLocatorType();
94 if (locator != null) {
95 return Optional.ofNullable(locator.getInterfaceName());
100 return Optional.empty();
103 private Optional<ServiceFunction> getServiceFunction(SfName name) {
104 ServiceFunctionKey serviceFunctionKey = new ServiceFunctionKey(new SfName(name));
105 InstanceIdentifier<ServiceFunction> sfIid = InstanceIdentifier.builder(ServiceFunctions.class)
106 .child(ServiceFunction.class, serviceFunctionKey).build();
108 return Optional.ofNullable(MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, sfIid).orNull());
111 private Optional<RenderedServicePathHop> getRspFirstHop(RenderedServicePath rsp) {
112 List<RenderedServicePathHop> hops = rsp.getRenderedServicePathHop();
113 if (hops == null || hops.isEmpty()) {
114 LOG.warn("getRspFirstHop RSP [{}] has no hops list", rsp.getName().getValue());
115 return Optional.empty();
118 return Optional.ofNullable(hops.get(0));