package org.opendaylight.transportpce.pce.graph;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.BitSet;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
-
+import java.util.concurrent.ExecutionException;
+import java.util.stream.Collectors;
import org.jgrapht.GraphPath;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.transportpce.common.InstanceIdentifiers;
import org.opendaylight.transportpce.common.ResponseCodes;
+import org.opendaylight.transportpce.common.StringConstants;
+import org.opendaylight.transportpce.common.catalog.CatalogConstant;
+import org.opendaylight.transportpce.common.catalog.CatalogConstant.CatalogNodeType;
+import org.opendaylight.transportpce.common.catalog.CatalogUtils;
+import org.opendaylight.transportpce.common.fixedflex.GridConstant;
+import org.opendaylight.transportpce.common.fixedflex.GridUtils;
+import org.opendaylight.transportpce.common.network.NetworkTransactionService;
import org.opendaylight.transportpce.pce.constraints.PceConstraints;
import org.opendaylight.transportpce.pce.constraints.PceConstraints.ResourcePair;
+import org.opendaylight.transportpce.pce.networkanalyzer.PceLink;
import org.opendaylight.transportpce.pce.networkanalyzer.PceNode;
import org.opendaylight.transportpce.pce.networkanalyzer.PceResult;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev181130.OpenroadmLinkType;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.SpectrumAssignment;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.SpectrumAssignmentBuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.topology.rev211210.TerminationPoint1;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.topology.rev211210.networks.network.node.termination.point.XpdrNetworkAttributes;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev211210.OpenroadmLinkType;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev211210.OpenroadmNodeType;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.common.types.rev210924.OpucnTribSlotDef;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.NodeId;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.LinkId;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.opendaylight.yangtools.yang.common.Uint16;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/* Logging. */
private static final Logger LOG = LoggerFactory.getLogger(PostAlgoPathValidator.class);
- private static final int MAX_WAWELENGTH = 96;
- private static final double MIN_OSNR_W100G = 17;
- private static final double TRX_OSNR = 33;
- private static final double ADD_OSNR = 30;
public static final Long CONST_OSNR = 1L;
public static final double SYS_MARGIN = 0;
+ private Double tpceCalculatedMargin = 0.0;
+ private final NetworkTransactionService networkTransactionService;
- public PceResult checkPath(GraphPath<String, PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes,
- PceResult pceResult, PceConstraints pceHardConstraints, String serviceType) {
+ public PostAlgoPathValidator(NetworkTransactionService networkTransactionService) {
+ this.networkTransactionService = networkTransactionService;
+ }
+
+ @SuppressWarnings("fallthrough")
+ @SuppressFBWarnings(
+ value = "SF_SWITCH_FALLTHROUGH",
+ justification = "intentional fallthrough")
+ public PceResult checkPath(GraphPath<String, PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes,
+ Map<LinkId, PceLink> allPceLinks, PceResult pceResult, PceConstraints pceHardConstraints,
+ String serviceType) {
+ LOG.info("path = {}", path);
// check if the path is empty
if (path.getEdgeList().isEmpty()) {
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
return pceResult;
}
-
- int tribSlotNb = 1;
+ int spectralWidthSlotNumber =
+ GridConstant.SPECTRAL_WIDTH_SLOT_NUMBER_MAP.getOrDefault(serviceType, GridConstant.NB_SLOTS_100G);
+ SpectrumAssignment spectrumAssignment = null;
//variable to deal with 1GE (Nb=1) and 10GE (Nb=10) cases
switch (serviceType) {
-
- case "100GE":
- case "OTU4":
- // choose wavelength available in all nodes of the path
- Long waveL = chooseWavelength(path, allPceNodes);
+ case StringConstants.SERVICE_TYPE_OTUC2:
+ case StringConstants.SERVICE_TYPE_OTUC3:
+ case StringConstants.SERVICE_TYPE_OTUC4:
+ case StringConstants.SERVICE_TYPE_400GE:
+ spectralWidthSlotNumber =
+ GridConstant.SPECTRAL_WIDTH_SLOT_NUMBER_MAP.getOrDefault(serviceType, GridConstant.NB_SLOTS_400G);
+ //fallthrough
+ case StringConstants.SERVICE_TYPE_100GE_T:
+ case StringConstants.SERVICE_TYPE_OTU4:
+ spectrumAssignment = getSpectrumAssignment(path, allPceNodes, spectralWidthSlotNumber);
pceResult.setServiceType(serviceType);
- if (waveL < 0) {
+ if (spectrumAssignment.getBeginIndex().equals(Uint16.valueOf(0))
+ && spectrumAssignment.getStopIndex().equals(Uint16.valueOf(0))) {
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
pceResult.setLocalCause(PceResult.LocalCause.NO_PATH_EXISTS);
return pceResult;
}
- pceResult.setResultWavelength(waveL);
- LOG.info("In PostAlgoPathValidator: chooseWavelength WL found {} {}", waveL, path);
+ if (spectrumAssignment.getFlexGrid()) {
+ LOG.debug("Spectrum assignment flexgrid mode");
+ pceResult.setResultWavelength(GridConstant.IRRELEVANT_WAVELENGTH_NUMBER);
+ } else {
+ LOG.debug("Spectrum assignment fixedgrid mode");
+ pceResult.setResultWavelength(
+ GridUtils.getWaveLengthIndexFromSpectrumAssigment(spectrumAssignment.getBeginIndex().toJava()));
+ }
+ pceResult.setMinFreq(GridUtils.getStartFrequencyFromIndex(spectrumAssignment.getBeginIndex().toJava()));
+ pceResult.setMaxFreq(GridUtils.getStopFrequencyFromIndex(spectrumAssignment.getStopIndex().toJava()));
+ LOG.debug("In PostAlgoPathValidator: spectrum assignment found {} {}", spectrumAssignment, path);
// Check the OSNR
- if (!checkOSNR(path)) {
- pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
- pceResult.setLocalCause(PceResult.LocalCause.OUT_OF_SPEC_OSNR);
- return pceResult;
+ CatalogUtils cu = new CatalogUtils(networkTransactionService);
+ if (cu.isCatalogFilled()) {
+ double margin1 = checkOSNR(path, allPceNodes, allPceLinks, serviceType,
+ StringConstants.SERVICE_DIRECTION_AZ, cu);
+ double margin2 = checkOSNR(path, allPceNodes, allPceLinks, serviceType,
+ StringConstants.SERVICE_DIRECTION_ZA, cu);
+ if (margin1 < 0 || margin2 < 0 || margin1 == Double.NEGATIVE_INFINITY
+ || margin2 == Double.NEGATIVE_INFINITY) {
+ pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
+ pceResult.setLocalCause(PceResult.LocalCause.OUT_OF_SPEC_OSNR);
+ return pceResult;
+ }
+ this.tpceCalculatedMargin = Math.min(margin1, margin2);
+ LOG.info(
+ "In PostAlgoPathValidator: Minimum margin estimated by tpce on AtoZ and ZtoA path is of {} dB",
+ this.tpceCalculatedMargin);
+ } else {
+ this.tpceCalculatedMargin = 0.0;
+ LOG.info("In PostAlgoPathValidator: Operational mode Catalog not filled, delegate OSNR calculation"
+ + " to GNPy and margin set to 0");
}
-
// Check if MaxLatency is defined in the hard constraints
- if ((pceHardConstraints.getMaxLatency() != -1)
- && (!checkLatency(pceHardConstraints.getMaxLatency(), path))) {
+ if (pceHardConstraints.getMaxLatency() != -1
+ && !checkLatency(pceHardConstraints.getMaxLatency(), path)) {
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
pceResult.setLocalCause(PceResult.LocalCause.TOO_HIGH_LATENCY);
return pceResult;
}
-
// Check if nodes are included in the hard constraints
if (!checkInclude(path, pceHardConstraints)) {
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
pceResult.setLocalCause(PceResult.LocalCause.HD_NODE_INCLUDE);
return pceResult;
}
-
// TODO here other post algo validations can be added
// more data can be sent to PceGraph module via PceResult structure if required
-
pceResult.setRC(ResponseCodes.RESPONSE_OK);
pceResult.setLocalCause(PceResult.LocalCause.NONE);
-
- break;
-
- case "10GE":
- tribSlotNb = 10;
- //fallthrough
- case "1GE":
+ return pceResult;
+ case StringConstants.SERVICE_TYPE_100GE_M:
+ case StringConstants.SERVICE_TYPE_10GE:
+ case StringConstants.SERVICE_TYPE_1GE:
+ int tribSlotNb = Map.of(
+ StringConstants.SERVICE_TYPE_100GE_M, 20,
+ StringConstants.SERVICE_TYPE_10GE, 8,
+ StringConstants.SERVICE_TYPE_1GE, 1)
+ .get(serviceType);
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
pceResult.setServiceType(serviceType);
- Map<String, Uint16> tribPort = chooseTribPort(path, allPceNodes);
Map<String, List<Uint16>> tribSlot = chooseTribSlot(path, allPceNodes, tribSlotNb);
-
- if (tribPort != null && tribSlot != null) {
- pceResult.setResultTribPort(tribPort);
- pceResult.setResultTribSlot(tribSlot);
- pceResult.setResultTribSlotNb(tribSlotNb);
+ Map<String, Uint16> tribPort = chooseTribPort(path, allPceNodes, tribSlot, tribSlotNb);
+ List<OpucnTribSlotDef> resultTribPortTribSlot = getMinMaxTpTs(tribPort, tribSlot);
+ if (resultTribPortTribSlot.get(0) != null && resultTribPortTribSlot.get(1) != null) {
+ pceResult.setResultTribPortTribSlot(resultTribPortTribSlot);
pceResult.setRC(ResponseCodes.RESPONSE_OK);
LOG.info("In PostAlgoPathValidator: found TribPort {} - tribSlot {} - tribSlotNb {}",
tribPort, tribSlot, tribSlotNb);
}
- break;
-
- case "ODU4":
+ return pceResult;
+ case StringConstants.SERVICE_TYPE_ODU4:
+ case StringConstants.SERVICE_TYPE_ODUC2:
+ case StringConstants.SERVICE_TYPE_ODUC3:
+ case StringConstants.SERVICE_TYPE_ODUC4:
+ case StringConstants.SERVICE_TYPE_100GE_S:
pceResult.setRC(ResponseCodes.RESPONSE_OK);
- LOG.info("In PostAlgoPathValidator: ODU4 path found {}", path);
- break;
-
+ pceResult.setServiceType(serviceType);
+ LOG.info("In PostAlgoPathValidator: ODU4/ODUCn path found {}", path);
+ return pceResult;
default:
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
LOG.warn("In PostAlgoPathValidator checkPath: unsupported serviceType {} found {}",
serviceType, path);
- break;
+ return pceResult;
}
-
- return pceResult;
- }
-
- // Choose the first available wavelength from the source to the destination
- private Long chooseWavelength(GraphPath<String, PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes) {
- Long wavelength = -1L;
- for (long i = 1; i <= MAX_WAWELENGTH; i++) {
- boolean completed = true;
- LOG.debug("In chooseWavelength: {} {}", path.getLength(), path);
- for (PceGraphEdge edge : path.getEdgeList()) {
- LOG.debug("In chooseWavelength: source {} ", edge.link().getSourceId());
- PceNode pceNode = allPceNodes.get(edge.link().getSourceId());
- if (!pceNode.checkWL(i)) {
- completed = false;
- break;
- }
- }
- if (completed) {
- wavelength = i;
- break;
- }
- }
- return wavelength;
}
// Check the latency
private boolean checkLatency(Long maxLatency, GraphPath<String, PceGraphEdge> path) {
double latency = 0;
-
for (PceGraphEdge edge : path.getEdgeList()) {
- try {
- latency += edge.link().getLatency();
- LOG.debug("- In checkLatency: latency of {} = {} units", edge.link().getLinkId().getValue(), latency);
- } catch (NullPointerException e) {
+ if (edge.link() == null || edge.link().getLatency() == null) {
LOG.warn("- In checkLatency: the link {} does not contain latency field",
edge.link().getLinkId().getValue());
+ return false;
}
+ latency += edge.link().getLatency();
+ LOG.debug("- In checkLatency: latency of {} = {} units", edge.link().getLinkId().getValue(), latency);
}
return (latency < maxLatency);
}
// Check the inclusion if it is defined in the hard constraints
private boolean checkInclude(GraphPath<String, PceGraphEdge> path, PceConstraints pceHardConstraintsInput) {
- List<ResourcePair> listToInclude = pceHardConstraintsInput.getListToInclude();
+ List<ResourcePair> listToInclude = pceHardConstraintsInput.getListToInclude()
+ .stream().sorted((rp1, rp2) -> rp1.getName().compareTo(rp2.getName()))
+ .collect(Collectors.toList());
if (listToInclude.isEmpty()) {
return true;
}
-
List<PceGraphEdge> pathEdges = path.getEdgeList();
LOG.debug(" in checkInclude vertex list: [{}]", path.getVertexList());
-
List<String> listOfElementsSubNode = new ArrayList<>();
listOfElementsSubNode.add(pathEdges.get(0).link().getsourceNetworkSupNodeId());
- listOfElementsSubNode.addAll(listOfElementsBuild(pathEdges, PceConstraints.ResourceType.NODE,
- pceHardConstraintsInput));
-
+ listOfElementsSubNode.addAll(
+ listOfElementsBuild(pathEdges, PceConstraints.ResourceType.NODE, pceHardConstraintsInput));
List<String> listOfElementsCLLI = new ArrayList<>();
listOfElementsCLLI.add(pathEdges.get(0).link().getsourceCLLI());
- listOfElementsCLLI.addAll(listOfElementsBuild(pathEdges, PceConstraints.ResourceType.CLLI,
- pceHardConstraintsInput));
-
+ listOfElementsCLLI.addAll(
+ listOfElementsBuild(pathEdges, PceConstraints.ResourceType.CLLI, pceHardConstraintsInput));
List<String> listOfElementsSRLG = new ArrayList<>();
// first link is XPONDEROUTPUT, no SRLG for it
listOfElementsSRLG.add("NONE");
- listOfElementsSRLG.addAll(listOfElementsBuild(pathEdges, PceConstraints.ResourceType.SRLG,
- pceHardConstraintsInput));
-
+ listOfElementsSRLG.addAll(
+ listOfElementsBuild(pathEdges, PceConstraints.ResourceType.SRLG, pceHardConstraintsInput));
// validation: check each type for each element
- for (ResourcePair next : listToInclude) {
- int indx = -1;
- switch (next.getType()) {
- case NODE:
- if (listOfElementsSubNode.contains(next.getName())) {
- indx = listOfElementsSubNode.indexOf(next.getName());
- }
- break;
- case SRLG:
- if (listOfElementsSRLG.contains(next.getName())) {
- indx = listOfElementsSRLG.indexOf(next.getName());
- }
- break;
- case CLLI:
- if (listOfElementsCLLI.contains(next.getName())) {
- indx = listOfElementsCLLI.indexOf(next.getName());
- }
- break;
- default:
- LOG.warn(" in checkInclude vertex list unsupported resource type: [{}]", next.getType());
- }
-
- if (indx < 0) {
- LOG.debug(" in checkInclude stopped : {} ", next.getName());
- return false;
- }
-
- LOG.debug(" in checkInclude next found {} in {}", next.getName(), path.getVertexList());
-
- listOfElementsSubNode.subList(0, indx).clear();
- listOfElementsCLLI.subList(0, indx).clear();
- listOfElementsSRLG.subList(0, indx).clear();
- }
-
- LOG.info(" in checkInclude passed : {} ", path.getVertexList());
- return true;
+ return listOfElementsSubNode.containsAll(
+ listToInclude
+ .stream().filter(rp -> PceConstraints.ResourceType.NODE.equals(rp.getType()))
+ .map(ResourcePair::getName).collect(Collectors.toList()))
+ && listOfElementsSRLG.containsAll(
+ listToInclude
+ .stream().filter(rp -> PceConstraints.ResourceType.SRLG.equals(rp.getType()))
+ .map(ResourcePair::getName).collect(Collectors.toList()))
+ && listOfElementsCLLI.containsAll(
+ listToInclude
+ .stream().filter(rp -> PceConstraints.ResourceType.CLLI.equals(rp.getType()))
+ .map(ResourcePair::getName).collect(Collectors.toList()));
}
private List<String> listOfElementsBuild(List<PceGraphEdge> pathEdges, PceConstraints.ResourceType type,
- PceConstraints pceHardConstraints) {
-
+ PceConstraints pceHardConstraints) {
List<String> listOfElements = new ArrayList<>();
for (PceGraphEdge link : pathEdges) {
switch (type) {
}
private Map<String, Uint16> chooseTribPort(GraphPath<String,
- PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes) {
- LOG.info("In choosetribPort: edgeList = {} ", path.getEdgeList());
+ PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes, Map<String, List<Uint16>> tribSlotMap, int nbSlot) {
+ LOG.debug("In choosetribPort: edgeList = {} ", path.getEdgeList());
Map<String, Uint16> tribPortMap = new HashMap<>();
-
for (PceGraphEdge edge : path.getEdgeList()) {
- NodeId linkSrcNode = edge.link().getSourceId();
- String linkSrcTp = edge.link().getSourceTP().toString();
- NodeId linkDestNode = edge.link().getDestId();
- String linkDestTp = edge.link().getDestTP().toString();
- PceNode pceOtnNodeSrc = allPceNodes.get(linkSrcNode);
- PceNode pceOtnNodeDest = allPceNodes.get(linkDestNode);
- List<Uint16> srcTpnPool = pceOtnNodeSrc.getAvailableTribPorts().get(linkSrcTp);
- List<Uint16> destTpnPool = pceOtnNodeDest.getAvailableTribPorts().get(linkDestTp);
+ List<Uint16> srcTpnPool =
+ allPceNodes
+ .get(edge.link().getSourceId())
+ .getAvailableTribPorts()
+ .get(edge.link().getSourceTP().getValue());
+ List<Uint16> destTpnPool =
+ allPceNodes
+ .get(edge.link().getDestId())
+ .getAvailableTribPorts()
+ .get(edge.link().getDestTP().getValue());
List<Uint16> commonEdgeTpnPool = new ArrayList<>();
- for (Uint16 integer : srcTpnPool) {
- if (destTpnPool.contains(integer)) {
- commonEdgeTpnPool.add(integer);
+ for (Uint16 srcTpn : srcTpnPool) {
+ if (destTpnPool.contains(srcTpn)) {
+ commonEdgeTpnPool.add(srcTpn);
}
}
- Collections.sort(commonEdgeTpnPool);
- if (!commonEdgeTpnPool.isEmpty()) {
- tribPortMap.put(edge.link().getLinkId().getValue(), commonEdgeTpnPool.get(0));
+ if (commonEdgeTpnPool.isEmpty()) {
+ continue;
+ }
+ Integer startTribSlot = tribSlotMap.values().stream().findFirst().get().get(0).toJava();
+ Integer tribPort = (int) Math.ceil((double)startTribSlot / nbSlot);
+ for (Uint16 commonTribPort : commonEdgeTpnPool) {
+ if (tribPort.equals(commonTribPort.toJava())) {
+ tribPortMap.put(edge.link().getLinkId().getValue(), commonTribPort);
+ }
}
}
tribPortMap.forEach((k,v) -> LOG.info("TribPortMap : k = {}, v = {}", k, v));
}
private Map<String, List<Uint16>> chooseTribSlot(GraphPath<String,
- PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes, int nbSlot) {
- LOG.info("In choosetribSlot2: edgeList = {} ", path.getEdgeList());
+ PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes, int nbSlot) {
+ LOG.debug("In choosetribSlot: edgeList = {} ", path.getEdgeList());
Map<String, List<Uint16>> tribSlotMap = new HashMap<>();
-
for (PceGraphEdge edge : path.getEdgeList()) {
- NodeId linkSrcNode = edge.link().getSourceId();
- String linkSrcTp = edge.link().getSourceTP().toString();
- NodeId linkDestNode = edge.link().getDestId();
- String linkDestTp = edge.link().getDestTP().toString();
- PceNode pceOtnNodeSrc = allPceNodes.get(linkSrcNode);
- PceNode pceOtnNodeDest = allPceNodes.get(linkDestNode);
- List<Uint16> srcTsPool = pceOtnNodeSrc.getAvailableTribSlots().get(linkSrcTp);
- List<Uint16> destTsPool = pceOtnNodeDest.getAvailableTribSlots().get(linkDestTp);
- List<Uint16> commonEdgeTsPool = new ArrayList<>();
+ List<Uint16> srcTsPool =
+ allPceNodes
+ .get(edge.link().getSourceId())
+ .getAvailableTribSlots()
+ .get(edge.link().getSourceTP().getValue());
+ List<Uint16> destTsPool =
+ allPceNodes
+ .get(edge.link().getDestId())
+ .getAvailableTribSlots()
+ .get(edge.link().getDestTP().getValue());
+ List<Uint16> commonEdgeTsPoolList = new ArrayList<>();
List<Uint16> tribSlotList = new ArrayList<>();
for (Uint16 integer : srcTsPool) {
if (destTsPool.contains(integer)) {
- commonEdgeTsPool.add(integer);
+ commonEdgeTsPoolList.add(integer);
}
}
- Collections.sort(commonEdgeTsPool);
- boolean discontinue = true;
- int index = 0;
- while (discontinue && (commonEdgeTsPool.size() - index >= nbSlot)) {
- discontinue = false;
- Integer val = commonEdgeTsPool.get(index).toJava();
- for (int i = 0; i < nbSlot; i++) {
- if (commonEdgeTsPool.get(index + i).equals(Uint16.valueOf(val + i))) {
- tribSlotList.add(commonEdgeTsPool.get(index + i));
- } else {
- discontinue = true;
- tribSlotList.clear();
- index += i;
- break;
+ Collections.sort(commonEdgeTsPoolList);
+ List<Uint16> commonGoodStartEdgeTsPoolList = new ArrayList<>();
+ for (Uint16 startEdgeTsPool : commonEdgeTsPoolList) {
+ if (Integer.valueOf(1).equals(startEdgeTsPool.toJava() % nbSlot) || nbSlot == 1) {
+ commonGoodStartEdgeTsPoolList.add(startEdgeTsPool);
+ }
+ }
+ Collections.sort(commonGoodStartEdgeTsPoolList);
+ boolean goodTsList = false;
+ for (Uint16 goodStartTsPool : commonGoodStartEdgeTsPoolList) {
+ int goodStartIndex = commonEdgeTsPoolList.indexOf(Uint16.valueOf(goodStartTsPool.intValue()));
+ if (!goodTsList && commonEdgeTsPoolList.size() - goodStartIndex >= nbSlot) {
+ for (int i = 0; i < nbSlot; i++) {
+ if (!commonEdgeTsPoolList.get(goodStartIndex + i)
+ .equals(Uint16.valueOf(goodStartTsPool.toJava() + i))) {
+ goodTsList = false;
+ tribSlotList.clear();
+ break;
+ }
+ tribSlotList.add(commonEdgeTsPoolList.get(goodStartIndex + i));
+ goodTsList = true;
}
}
}
return tribSlotMap;
}
- private List<List<Uint16>> chooseTribSlot3(GraphPath<String, PceGraphEdge> path,
- Map<NodeId, PceNode> allPceNodes) {
- List<List<Uint16>> tribSlot = new ArrayList<>();
- boolean statusOK = true;
- boolean check = false;
- Object nodeClass = allPceNodes.getClass();
- if (nodeClass.getClass().isInstance(PceNode.class)) {
- LOG.debug("In choosetribSlot: AllPceNodes contains PceNode instance, no trib port search");
- return tribSlot;
- } else if (nodeClass.getClass().isInstance(PceNode.class)) {
- LOG.debug("In choosetribPort: {} {}", path.getLength(), path);
+ private List<OpucnTribSlotDef> getMinMaxTpTs(Map<String, Uint16> tribPort, Map<String, List<Uint16>> tribSlot) {
+ String tribport = tribPort.values().toArray()[0].toString();
+ List<Uint16> tsList = (List<Uint16>) tribSlot.values().toArray()[0];
+ return new ArrayList<>(List.of(
+ OpucnTribSlotDef.getDefaultInstance(String.join(".", tribport, tsList.get(0).toString())),
+ OpucnTribSlotDef.getDefaultInstance(String.join(".", tribport, tsList.get(tsList.size() - 1).toString()))));
+ }
+
+ /**
+ * Calculates the OSNR of a path, according to the direction (AtoZ/ZtoA), using the operational-modes Catalog.
+ *
+ * @param path the AtoZ path provided by the PCE.
+ * @param allPceNode The map of chosen/relevant PceNodes build from topology pruning.
+ * @param allPceLinks The map of PceLinks build corresponding to the whole topology.
+ * @param serviceType The service Type used to extrapolate Operational mode when it is not provided.
+ * @param direction The direction used to scan provided path in a direct or reverse way.
+ * @param cu CatalogUtils instance.
+ * @return the calculated margin according to the Transponder performances and path impairments.
+ */
+ @SuppressWarnings("deprecation")
+ @edu.umd.cs.findbugs.annotations.SuppressWarnings("DLS_DEAD_LOCAL_STORE")
+ private double checkOSNR(GraphPath<String, PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes,
+ Map<LinkId, PceLink> allPceLinks, String serviceType, String direction, CatalogUtils cu) {
+ double spacing = 50.0;
+ double calcPdl2 = 0;
+ double calcOsnrdB = 0;
+ double calcCd = 0;
+ double calcPmd2 = 0;
+ double calcOnsrLin = 0.0001;
+ double margin = 0;
+ double pwrIn = -60.0;
+ double pwrOut = -60.0;
+ int pathElement = 0;
+ int increment = 1;
+ int offsetLink = 0;
+ boolean transponderPresent = false;
+ if ((StringConstants.SERVICE_DIRECTION_ZA).equals(direction)) {
+ increment = - 1;
+ offsetLink = -1;
}
- for (PceGraphEdge edge : path.getEdgeList()) {
- LOG.debug("In chooseTribSlot: source {} ", edge.link().getSourceId());
- PceNode pceNode = allPceNodes.get(edge.link().getSourceId());
- Object tps = allPceNodes.get(edge.link().getSourceTP());
- Object tpd = allPceNodes.get(edge.link().getDestTP());
- if ((pceNode.getAvailableTribSlots().containsKey(tps.toString()))
- && (pceNode.getAvailableTribSlots().containsKey(tpd.toString()))) {
- List<Uint16> tribSlotEdgeSourceN = pceNode.getAvailableTribSlots().get(tps.toString());
- List<Uint16> tribSlotEdgeDestN = pceNode.getAvailableTribSlots().get(tps.toString());
- check = false;
- for (int i = 0; i <= 79; i++) {
- if (tribSlotEdgeSourceN.get(i) == null) {
- break;
+ CatalogNodeType cnt;
+ List<String> vertices = path.getVertexList();
+ List<PceGraphEdge> edges = path.getEdgeList();
+ String opMode = "";
+ // LOOP that scans the different Nodes/Links of the path and calculates
+ // associated degradations
+ // using CatalogUtils primitives to retrieve physical parameters and make a
+ // first level calculation
+ Map<String, Double> impairments = new HashMap<>();
+ for (int n = 0; n < vertices.size(); n++) {
+ InstanceIdentifier<TerminationPoint1> nwTpIid;
+ PceNode nextNode = null;
+ if ((StringConstants.SERVICE_DIRECTION_AZ).equals(direction)) {
+ pathElement = n ;
+ } else {
+ pathElement = vertices.size() - n - 1;
+ }
+ PceNode currentNode = allPceNodes.get(new NodeId(vertices.get(pathElement)));
+ if (((pathElement != vertices.size() - 1) && (StringConstants.SERVICE_DIRECTION_AZ).equals(direction))
+ || ((pathElement != 0) && (StringConstants.SERVICE_DIRECTION_ZA).equals(direction))) {
+ nextNode = allPceNodes.get(new NodeId(vertices.get(pathElement + increment)));
+ }
+ LOG.debug("loop of check OSNR, n = {} Path Element = {}", n, pathElement);
+ switch (currentNode.getORNodeType()) {
+ case XPONDER:
+ transponderPresent = true;
+ String nwTpId = "";
+ if (((pathElement == 0) && (StringConstants.SERVICE_DIRECTION_AZ).equals(direction))
+ || ((pathElement == (vertices.size() - 1)) && (StringConstants.SERVICE_DIRECTION_ZA)
+ .equals(direction))) {
+ //First Xponder of the path TX side
+ nwTpId = getAppropriatePceLink((pathElement + offsetLink), edges, allPceLinks, direction)
+ .getSourceTP().getValue();
+ } else {
+ // last Xponder of the path (RX side)
+ nwTpId = getAppropriatePceLink((pathElement - offsetLink - 1), edges, allPceLinks, direction)
+ .getDestTP().getValue();
+ }
+ nwTpIid = InstanceIdentifiers.createNetworkTerminationPoint1IIDBuilder(
+ vertices.get(pathElement), nwTpId);
+ LOG.debug("loop of check OSNR : XPDR, n = {} Path Element = {}", n, pathElement);
+ try {
+ if (networkTransactionService.read(LogicalDatastoreType.CONFIGURATION, nwTpIid)
+ .get().isPresent()) {
+ XpdrNetworkAttributes xna = networkTransactionService
+ .read(LogicalDatastoreType.CONFIGURATION, nwTpIid)
+ .get().get().getXpdrNetworkAttributes();
+ // If the operational mode of the Xponder is not consistent or
+ // if the operational mode of the Xponder is not declared in the topology
+ // (Network TP)
+ if (currentNode.getXponderOperationalMode(xna).contentEquals(StringConstants.UNKNOWN_MODE)
+ || currentNode.getXponderOperationalMode(xna) == null
+ || currentNode.getXponderOperationalMode(xna).isEmpty()) {
+ // Operational mode is retrieved from the service Type assuming it is supported
+ // by the Xponder
+ opMode = cu.getPceOperationalModeFromServiceType(
+ CatalogConstant.CatalogNodeType.TSP, serviceType);
+ } else {
+ // Operational mode is found as an attribute of the network TP
+ opMode = currentNode.getXponderOperationalMode(xna);
+ }
+ LOG.debug("Transponder {} corresponding to path Element {} in the path has {} operational "
+ + "mode", currentNode.getNodeId().getValue(), pathElement, opMode);
+ } else {
+ LOG.error("Issue accessing the XponderNetworkAttributes of {} for Transponder {}"
+ + " corresponding to path Element {} in the path ",
+ nwTpId, currentNode.getNodeId().getValue(), pathElement);
+ opMode = cu.getPceOperationalModeFromServiceType(
+ CatalogConstant.CatalogNodeType.TSP, serviceType);
+ LOG.info("Did not succeed finding network TP {} in Configuration Datastore. Retrieve"
+ + " default Operational Mode {} from serviceType {}", nwTpId, opMode, serviceType);
+ }
+ } catch (InterruptedException | ExecutionException e1) {
+ opMode = cu.getPceOperationalModeFromServiceType(CatalogConstant.CatalogNodeType.TSP,
+ serviceType);
+ LOG.info("Did not succeed finding network TP {} in Configuration Datastore. Retrieve"
+ + " default Operational Mode {} from serviceType {}", nwTpId, opMode, serviceType);
}
- // TODO This will need to be modified as soon as the trib-slots allocation per
- // trib-port
- // policy applied by the different manufacturer is known
- if (tribSlotEdgeSourceN.get(i).equals(tribSlotEdgeDestN.get(i))) {
- check = true;
+ // If TSP is the last of the path
+ if (((pathElement == (vertices.size() - 1))
+ && (StringConstants.SERVICE_DIRECTION_AZ).equals(direction))
+ || ((pathElement == 0) && (StringConstants.SERVICE_DIRECTION_ZA).equals(direction))) {
+ LOG.debug("Loop n = {}, Step5.1, XPDR, tries calculating Margin, just before call", n);
+ // Check that accumulated degradations are compatible with TSP performances
+ // According to OpenROADM spec :
+ // margin = cu.getPceRxTspParameters(opMode, calcCd, Math.sqrt(calcPmd2), Math.sqrt(calcPdl2),
+ // getOsnrDbfromOnsrLin(calcOnsrLin));
+ // Calculation modified for pdl according to calculation in Julia's Tool
+ margin = cu.getPceRxTspParameters(opMode, calcCd, Math.sqrt(calcPmd2),
+ (Math.sqrt(calcPdl2)), getOsnrDbfromOnsrLin(calcOnsrLin));
+ LOG.info("Loop n = {}, XPDR, calcosnrdB= {}", n, getOsnrDbfromOnsrLin(calcOnsrLin));
} else {
- check = false;
- LOG.debug("In chooseTribSlot: Misalignement of trib slots between source {} and dest {}",
- edge.link().getSourceId(), edge.link().getDestId());
+ // TSP is first element of the path . To correctly evaluate the TX OOB OSNR from
+ // its operational mode, we need to know the type of ADD/DROP Mux it is
+ // connected to
+ String adnMode = "";
+ // If the operational mode of the ADD/DROP MUX is not consistent or
+ // if the operational mode of the ADD/DROP MUX is not declared in the topology
+ // (Network TP)
+ if (StringConstants.UNKNOWN_MODE.equals(nextNode.getOperationalMode())
+ || nextNode.getOperationalMode() == null
+ || nextNode.getOperationalMode().isEmpty()) {
+ // Operational mode is set by default to standard opMode for ADD SRGs
+ adnMode = CatalogConstant.MWWRCORE;
+ } else {
+ // Operational mode is found in SRG attributes of the Node
+ adnMode = nextNode.getOperationalMode();
+ }
+ LOG.debug("Transponder {} corresponding to path Element {} in the path is connected to SRG "
+ + "which has {} operational mode", currentNode.getNodeId().getValue(), pathElement,
+ adnMode);
+ // Retrieve the Tx ONSR of the Xponder which results from IB and OOB OSNR
+ // contributions
+ calcOnsrLin = cu.getPceTxTspParameters(opMode, adnMode);
+ // Retrieve the spacing associated with Xponder operational mode that is needed
+ // to calculate OSNR
+ spacing = cu.getPceTxTspChannelSpacing(opMode);
+ LOG.info("Transponder {} corresponding to path Element {} in the path has a TX OSNR of {} dB",
+ currentNode.getNodeId().getValue(), pathElement, getOsnrDbfromOnsrLin(calcOnsrLin));
+ }
+ break;
+ case SRG:
+ String srgMode = "";
+ // If the operational mode of the ADD/DROP MUX is not consistent or
+ // if the operational mode of the ADD/DROP MUX is not declared in the topology
+ // (Network TP)
+ if (StringConstants.UNKNOWN_MODE.equals(currentNode.getOperationalMode())
+ || currentNode.getOperationalMode() == null
+ || currentNode.getOperationalMode().isEmpty()) {
+ // Operational mode is set by default to standard opMode for ADD/DROP SRGs
+ srgMode = CatalogConstant.MWWRCORE;
+ } else {
+ // Operational mode is found in SRG attributes of the Node
+ srgMode = currentNode.getOperationalMode();
+ }
+ cnt = CatalogConstant.CatalogNodeType.DROP;
+ LOG.debug("loop of check OSNR : SRG, n = {} Path Element = {}", n, pathElement);
+ if ((pathElement <= 1) && (StringConstants.SERVICE_DIRECTION_AZ).equals(direction)
+ || (pathElement >= vertices.size() - 2)
+ && (StringConstants.SERVICE_DIRECTION_ZA).equals(direction)) {
+ // This is ADD case : First (optical-tunnel) or 2nd (Regular E2E service from
+ // Xponder to Xponder) node element of the path is the ADD SRG.
+ if (!(getAppropriatePceLink((pathElement + offsetLink), edges, allPceLinks, direction)
+ .getlinkType() == OpenroadmLinkType.ADDLINK)) {
+ LOG.error("Error processing Node {} for which output link {} is not an ADDLINK Type",
+ currentNode.getNodeId().toString(), pathElement + offsetLink);
+ }
+ cnt = CatalogConstant.CatalogNodeType.ADD;
+ pwrIn = 0.0;
+ pwrOut = cu.getPceRoadmAmpOutputPower(cnt, srgMode,
+ getAppropriatePceLink((pathElement + 1 + offsetLink * 3), edges, allPceLinks, direction)
+ .getspanLoss(), spacing,
+ getAppropriatePceLink((pathElement + 1 + offsetLink * 3), edges, allPceLinks, direction)
+ .getpowerCorrection());
+ LOG.debug("loop of check OSNR : SRG, n = {} link {} Pout = {}",
+ pathElement, pathElement + 1 + offsetLink * 3, pwrOut);
+ } else {
+ // Other case is DROP, for which cnt is unchanged (.DROP)
+ if (!(getAppropriatePceLink((pathElement - 1 - offsetLink), edges, allPceLinks, direction)
+ .getlinkType() == OpenroadmLinkType.DROPLINK)) {
+ LOG.error("Error processing Node {} for which input link {} is not a DROPLINK Type",
+ currentNode.getNodeId().toString(), pathElement - 1 - offsetLink);
+ }
+ pwrIn = pwrOut - getAppropriatePceLink((pathElement - offsetLink * 3 - 2), edges, allPceLinks,
+ direction).getspanLoss();
+ // Calculate degradation accumulated across incoming Link and add them to
+ // accumulated impairments
+ calcCd += getAppropriatePceLink((pathElement - offsetLink * 3 - 2), edges, allPceLinks,
+ direction).getcd();
+ LOG.info("loop of check OSNR : SRG, n = {} CD on preceeding link {} = {} ps", pathElement,
+ pathElement - offsetLink * 3 - 2, getAppropriatePceLink((pathElement - offsetLink * 3 - 2),
+ edges, allPceLinks, direction).getcd());
+ calcPmd2 += getAppropriatePceLink((pathElement - offsetLink * 3 - 2), edges, allPceLinks,
+ direction).getpmd2();
+ // This also includes Non Linear Contribution from the path
+ calcOnsrLin += cu.calculateNLonsrContribution(pwrOut, getAppropriatePceLink((pathElement
+ - offsetLink * 3 - 2), edges, allPceLinks, direction).getLength(), spacing);
+ }
+ //calculation of the SRG contribution either for Add and Drop
+ impairments = cu.getPceRoadmAmpParameters(cnt, srgMode,
+ pwrIn, calcCd, calcPmd2, calcPdl2, calcOnsrLin, spacing);
+ calcCd = impairments.get("CD").doubleValue();
+ calcPmd2 = impairments.get("DGD2").doubleValue();
+ calcPdl2 = impairments.get("PDL2").doubleValue();
+ calcOnsrLin = impairments.get("ONSRLIN").doubleValue();
+ if (calcOnsrLin == Double.NEGATIVE_INFINITY || calcOnsrLin == Double.POSITIVE_INFINITY) {
+ return -1.0;
+ }
+ if (pathElement > 1) {
+ // If SRG is not the first or the second element of the Path, it is the DROP
+ // side.
+ // After accumulated degradations are calculated, we also need to calculate
+ // resulting OSNR in dB to pass it to the method that verifies end Xponder
+ // performances are compatible with degradations experienced on the path
+ try {
+ calcOsnrdB = getOsnrDbfromOnsrLin(calcOnsrLin);
+ LOG.info("checkOSNR loop, last SRG osnr is {} dB", calcOsnrdB);
+ LOG.info("Loop n = {}, DROP, calcOsnrdB= {}", n, calcOsnrdB);
+ } catch (ArithmeticException e) {
+ LOG.debug("In checkOSNR: OSNR is equal to 0 and the number of links is: {}",
+ path.getEdgeList().size());
+ return -1.0;
+ }
+ }
+ if (CatalogConstant.CatalogNodeType.ADD.equals(cnt)) {
+ // For the ADD, degradation brought by the node are calculated from the MW-WR spec.
+ // The Degree is not considered. This means we must bypass the add-link (ADD)
+ // and the next node (Degree) which are not considered in the impairments.
+ n++;
+ }
+ impairments.clear();
+ break;
+ case DEGREE:
+ if (nextNode.getORNodeType() != OpenroadmNodeType.DEGREE) {
+ //This is the case of DROP, ROADM degree is not considered
break;
}
- }
- if (check) {
- tribSlot.add(tribSlotEdgeSourceN);
- }
- } else {
- LOG.debug("In chooseTribSlot: source {} does not have provisonned hosting HO interface ",
- edge.link().getSourceId());
- statusOK = false;
+ LOG.info("loop of check OSNR : DEGREE, n = {} Path Element = {}", n, pathElement);
+ cnt = CatalogConstant.CatalogNodeType.EXPRESS;
+ String degree1Mode = "";
+ String degree2Mode = "";
+ // If the operational mode of the Degree is not consistent or if the operational
+ // mode is not declared in the topology
+ if (StringConstants.UNKNOWN_MODE.equals(currentNode.getOperationalMode())
+ || currentNode.getOperationalMode() == null
+ || currentNode.getOperationalMode().isEmpty()) {
+ // Operational mode is set by default to standard opMode for Degree
+ degree1Mode = CatalogConstant.MWMWCORE;
+ } else {
+ // Operational mode is found in degree-attributes of the Node
+ degree1Mode = currentNode.getOperationalMode();
+ }
+ // Same for next node which is the second degree of a ROADM node
+ if (StringConstants.UNKNOWN_MODE.equals(nextNode.getOperationalMode())
+ || nextNode.getOperationalMode() == null
+ || nextNode.getOperationalMode().isEmpty()) {
+ degree2Mode = CatalogConstant.MWMWCORE;
+ } else {
+ degree2Mode = currentNode.getOperationalMode();
+ }
+ // At that time OpenROADM provides only one spec for the ROADM nodes
+ if (!degree1Mode.equals(degree2Mode)) {
+ LOG.info("Unsupported Hybrid ROADM configuration with Degree1 {} of {} operational mode"
+ + "and Degree2 {} of {} operational mode. Will by default use operational mode"
+ + "of Degree2", currentNode.getNodeId().toString(),
+ degree1Mode, nextNode.getNodeId().toString(), degree2Mode);
+ }
+ pwrIn = pwrOut - getAppropriatePceLink((pathElement - offsetLink - 1), edges, allPceLinks,
+ direction).getspanLoss();
+ // Calculate degradation accumulated across incoming Link and add them to
+ // accumulated impairments
+ calcCd += getAppropriatePceLink((pathElement - offsetLink - 1), edges, allPceLinks, direction)
+ .getcd();
+ calcPmd2 += getAppropriatePceLink((pathElement - offsetLink - 1), edges, allPceLinks, direction)
+ .getpmd2();
+ // This also includes Non Linear Contribution from the path
+ calcOnsrLin += cu.calculateNLonsrContribution(pwrOut, getAppropriatePceLink((pathElement
+ - offsetLink - 1), edges, allPceLinks, direction).getLength(), spacing);
+ // Calculate output power for next span (Output of degree 2)
+ pwrOut = cu.getPceRoadmAmpOutputPower(cnt, degree2Mode, getAppropriatePceLink((pathElement
+ + 3 * offsetLink + 1), edges, allPceLinks, direction).getspanLoss(), spacing,
+ getAppropriatePceLink((pathElement + 3 * offsetLink + 1), edges, allPceLinks, direction)
+ .getpowerCorrection());
+ // Adds to accumulated impairments the degradation associated with the Express
+ // path of ROADM : Degree1, express link, Degree2
+ impairments = cu.getPceRoadmAmpParameters(cnt, degree2Mode,
+ pwrIn, calcCd, calcPmd2, calcPdl2, calcOnsrLin, spacing);
+ calcCd = impairments.get("CD").doubleValue();
+ calcPmd2 = impairments.get("DGD2").doubleValue();
+ calcPdl2 = impairments.get("PDL2").doubleValue();
+ calcOnsrLin = impairments.get("ONSRLIN").doubleValue();
+ LOG.debug("Loop n = {}, DEGREE, calcOsnrdB= {}", n, getOsnrDbfromOnsrLin(calcOnsrLin));
+ if (calcOnsrLin == Double.NEGATIVE_INFINITY || calcOnsrLin == Double.POSITIVE_INFINITY) {
+ return -1.0;
+ }
+ // increment pathElement so that in next step we will not point to Degree2 but
+ // next node
+ n++;
+ LOG.info("Accumulated degradations in the path including ROADM {} + {} are CD: {}; PMD2: "
+ + "{}; Pdl2 : {}; ONSRdB : {}", currentNode.getNodeId().toString(),
+ nextNode.getNodeId().toString(), calcCd, calcPmd2, calcPdl2, getOsnrDbfromOnsrLin(calcOnsrLin));
+ break;
+ default:
+ LOG.error("PostAlgoPathValidator.CheckOSNR : unsupported resource type in the path chain");
}
}
- if (statusOK && check) {
- return tribSlot;
+ LOG.info("- In checkOSNR: accumulated CD = {} ps, PMD = {} ps, PDL = {} dB, and resulting OSNR calcOsnrdB = {} "
+ + "dB and ONSR dB exterapolated from calcosnrlin = {}"
+ + " including non linear contributions",
+ calcCd, Math.sqrt(calcPmd2), Math.sqrt(calcPdl2), calcOsnrdB, getOsnrDbfromOnsrLin(calcOnsrLin));
+ if (!transponderPresent) {
+ LOG.info("No transponder in the path, User shall check from CD, PMD, and OSNR values provided "
+ + "that optical tunnel degradations are compatible with external transponder performances");
+ return 0.0;
+ }
+ LOG.info("In checkOSNR: Transponder Operational mode {} results in a residual margin of {} dB, according "
+ + "to CD, PMD and DGD induced penalties and set System Margin of {} dB.",
+ opMode, margin - SYS_MARGIN, SYS_MARGIN);
+ String validationMessage = "INVALIDATED";
+ if ((margin - SYS_MARGIN) >= 0) {
+ validationMessage = "VALIDATED";
+ }
+ if ((StringConstants.SERVICE_DIRECTION_AZ).equals(direction)) {
+ LOG.info("- In checkOSNR: A to Z Path from {} to {} {}", vertices.get(0),
+ vertices.get(vertices.size() - 1), validationMessage);
} else {
- tribSlot.clear();
- return tribSlot;
+ LOG.info("- In checkOSNR: Z to A Path from {} to {} {}", vertices.get(vertices.size() - 1),
+ vertices.get(0), validationMessage);
+ }
+ return (margin - SYS_MARGIN);
+ }
+
+ // Method to provide either regular link (AtoZ) or Opposite link (ZtoA) in the list of PceGraphEdges
+ private PceLink getAppropriatePceLink(Integer pathEltNber, List<PceGraphEdge> edges,
+ Map<LinkId, PceLink> allPceLinks, String direction) {
+ if ((StringConstants.SERVICE_DIRECTION_AZ).equals(direction)) {
+ // Returns regular link.
+ return edges.get(pathEltNber).link();
}
+ //For Z to A direction, must return the opposite link
+ return allPceLinks.get(new LinkId(edges.get(pathEltNber).link().getOppositeLink()));
+ }
+
+ private double getOsnrDbfromOnsrLin(double onsrLu) {
+ return (10 * Math.log10(1 / onsrLu));
}
- // Check the path OSNR
- private boolean checkOSNR(GraphPath<String, PceGraphEdge> path) {
- double linkOsnrDb;
- double osnrDb = 0;
- LOG.info("- In checkOSNR: OSNR of the transmitter = {} dB", TRX_OSNR);
- LOG.info("- In checkOSNR: add-path incremental OSNR = {} dB", ADD_OSNR);
- double inverseLocalOsnr = getInverseOsnrLinkLu(TRX_OSNR) + getInverseOsnrLinkLu(ADD_OSNR);
+ /**
+ * Get spectrum assignment for path.
+ *
+ * @param path the path for which we get spectrum assignment.
+ * @param allPceNodes all optical nodes.
+ * @param spectralWidthSlotNumber number of slot for spectral width. Depends on
+ * service type.
+ * @return a spectrum assignment object which contains begin and end index. If
+ * no spectrum assignment found, beginIndex = stopIndex = 0
+ */
+ private SpectrumAssignment getSpectrumAssignment(GraphPath<String, PceGraphEdge> path,
+ Map<NodeId, PceNode> allPceNodes, int spectralWidthSlotNumber) {
+ byte[] freqMap = new byte[GridConstant.NB_OCTECTS];
+ Arrays.fill(freqMap, (byte) GridConstant.AVAILABLE_SLOT_VALUE);
+ BitSet result = BitSet.valueOf(freqMap);
+ boolean isFlexGrid = true;
+ LOG.debug("Processing path {} with length {}", path, path.getLength());
for (PceGraphEdge edge : path.getEdgeList()) {
- if (edge.link().getlinkType() == OpenroadmLinkType.ROADMTOROADM) {
- // link OSNR in dB
- linkOsnrDb = edge.link().getosnr();
- LOG.info("- In checkOSNR: OSNR of {} = {} dB", edge.link().getLinkId().getValue(), linkOsnrDb);
- // 1 over the local OSNR, in linear units
- inverseLocalOsnr += getInverseOsnrLinkLu(linkOsnrDb);
+ NodeId srcNodeId = edge.link().getSourceId();
+ LOG.debug("Processing source {} ", srcNodeId);
+ if (allPceNodes.containsKey(srcNodeId)) {
+ PceNode pceNode = allPceNodes.get(srcNodeId);
+ LOG.debug("Processing PCE node {}", pceNode);
+ String pceNodeVersion = pceNode.getVersion();
+ NodeId pceNodeId = pceNode.getNodeId();
+ BigDecimal sltWdthGran = pceNode.getSlotWidthGranularity();
+ BigDecimal ctralFreqGran = pceNode.getCentralFreqGranularity();
+ if (StringConstants.OPENROADM_DEVICE_VERSION_1_2_1.equals(pceNodeVersion)) {
+ LOG.debug("Node {}: version is {} and slot width granularity is {} -> fixed grid mode",
+ pceNodeId, pceNodeVersion, sltWdthGran);
+ isFlexGrid = false;
+ }
+ if (sltWdthGran.setScale(0, RoundingMode.CEILING).equals(GridConstant.SLOT_WIDTH_50)
+ && ctralFreqGran.setScale(0, RoundingMode.CEILING).equals(GridConstant.SLOT_WIDTH_50)) {
+ LOG.debug("Node {}: version is {} with slot width granularity {} and central "
+ + "frequency granularity is {} -> fixed grid mode",
+ pceNodeId, pceNodeVersion, sltWdthGran, ctralFreqGran);
+ isFlexGrid = false;
+ }
+ BitSet pceNodeFreqMap = pceNode.getBitSetData();
+ LOG.debug("Pce node bitset {}", pceNodeFreqMap);
+ if (pceNodeFreqMap != null) {
+ result.and(pceNodeFreqMap);
+ LOG.debug("intermediate bitset {}", result);
+ }
}
}
- try {
- osnrDb = getOsnrDb(1 / inverseLocalOsnr);
- } catch (ArithmeticException e) {
- LOG.debug("In checkOSNR: OSNR is equal to 0 and the number of links is: {}", path.getEdgeList().size());
- return false;
- }
- LOG.info("In checkOSNR: OSNR of the path is {} dB", osnrDb);
- return ((osnrDb + SYS_MARGIN) > MIN_OSNR_W100G);
+ LOG.debug("Bitset result {}", result);
+ return computeBestSpectrumAssignment(result, spectralWidthSlotNumber, isFlexGrid);
}
- private double getOsnrDb(double osnrLu) {
- double osnrDb;
- osnrDb = 10 * Math.log10(osnrLu);
- return osnrDb;
+ /**
+ * Compute spectrum assignment from spectrum occupation for spectral width.
+ *
+ * @param spectrumOccupation the spectrum occupation BitSet.
+ * @param spectralWidthSlotNumber the nb slots for spectral width.
+ * @param isFlexGrid true if flexible grid, false otherwise.
+ * @return a spectrum assignment object which contains begin and stop index. If
+ * no spectrum assignment found, beginIndex = stopIndex = 0
+ */
+ private SpectrumAssignment computeBestSpectrumAssignment(
+ BitSet spectrumOccupation, int spectralWidthSlotNumber, boolean isFlexGrid) {
+ SpectrumAssignmentBuilder spectrumAssignmentBldr = new SpectrumAssignmentBuilder()
+ .setBeginIndex(Uint16.valueOf(0))
+ .setStopIndex(Uint16.valueOf(0))
+ .setFlexGrid(isFlexGrid);
+ BitSet referenceBitSet = new BitSet(spectralWidthSlotNumber);
+ referenceBitSet.set(0, spectralWidthSlotNumber);
+ //higher is the frequency, smallest is the wavelength number
+ //in operational, the allocation is done through wavelength starting from the smallest
+ //so we have to loop from the last element of the spectrum occupation
+ for (int i = spectrumOccupation.size(); i >= spectralWidthSlotNumber;
+ i -= isFlexGrid ? spectralWidthSlotNumber : 1) {
+ if (spectrumOccupation.get(i - spectralWidthSlotNumber, i).equals(referenceBitSet)) {
+ spectrumAssignmentBldr.setBeginIndex(Uint16.valueOf(i - spectralWidthSlotNumber));
+ spectrumAssignmentBldr.setStopIndex(Uint16.valueOf(i - 1));
+ break;
+ }
+ }
+ return spectrumAssignmentBldr.build();
}
- private double getInverseOsnrLinkLu(double linkOsnrDb) {
- // 1 over the link OSNR, in linear units
- double linkOsnrLu;
- linkOsnrLu = Math.pow(10, (linkOsnrDb / 10.0));
- LOG.debug("In retrieveosnr: the inverse of link osnr is {} (Linear Unit)", linkOsnrLu);
- return (CONST_OSNR / linkOsnrLu);
+ public Double getTpceCalculatedMargin() {
+ return tpceCalculatedMargin;
}
-
}
Code Review / transportpce.git / blobdiff