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diff --git a/src/main/java/org/onap/aai/sparky/viewandinspect/services/BaseGizmoVisualizationContext.java b/src/main/java/org/onap/aai/sparky/viewandinspect/services/BaseGizmoVisualizationContext.java
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+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017 Amdocs
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.aai.sparky.viewandinspect.services;
+
+import static java.util.concurrent.CompletableFuture.supplyAsync;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.onap.aai.cl.api.Logger;
+import org.onap.aai.cl.eelf.LoggerFactory;
+import org.onap.aai.restclient.client.OperationResult;
+import org.onap.aai.sparky.config.oxm.OxmEntityDescriptor;
+import org.onap.aai.sparky.config.oxm.OxmEntityLookup;
+import org.onap.aai.sparky.dal.GizmoAdapter;
+import org.onap.aai.sparky.logging.AaiUiMsgs;
+import org.onap.aai.sparky.sync.entity.SearchableEntity;
+import org.onap.aai.sparky.util.NodeUtils;
+import org.onap.aai.sparky.viewandinspect.config.SparkyConstants;
+import org.onap.aai.sparky.viewandinspect.config.VisualizationConfigs;
+import org.onap.aai.sparky.viewandinspect.entity.ActiveInventoryNode;
+import org.onap.aai.sparky.viewandinspect.entity.GizmoEntity;
+import org.onap.aai.sparky.viewandinspect.entity.GizmoRelationshipEntity;
+import org.onap.aai.sparky.viewandinspect.entity.GizmoRelationshipHint;
+import org.onap.aai.sparky.viewandinspect.entity.InlineMessage;
+import org.onap.aai.sparky.viewandinspect.entity.NodeProcessingTransaction;
+import org.onap.aai.sparky.viewandinspect.entity.QueryParams;
+import org.onap.aai.sparky.viewandinspect.enumeration.NodeProcessingAction;
+import org.onap.aai.sparky.viewandinspect.enumeration.NodeProcessingState;
+import org.onap.aai.sparky.viewandinspect.task.PerformGizmoNodeSelfLinkProcessingTask;
+
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.PropertyNamingStrategy;
+
+/**
+ * The Class SelfLinkNodeCollector.
+ */
+public class BaseGizmoVisualizationContext implements VisualizationContext {
+
+ private static final int MAX_DEPTH_EVALUATION_ATTEMPTS = 100;
+
+ private static final Logger LOG =
+ LoggerFactory.getInstance().getLogger(BaseGizmoVisualizationContext.class);
+
+ private final GizmoAdapter gizmoAdapter;
+
+ private AtomicInteger numLinksDiscovered;
+ private AtomicInteger numSuccessfulLinkResolveFromCache;
+ private AtomicInteger numSuccessfulLinkResolveFromFromServer;
+ private AtomicInteger numFailedLinkResolve;
+ private AtomicInteger aaiWorkOnHand;
+
+ private VisualizationConfigs visualizationConfigs;
+
+ private AtomicInteger totalLinksRetrieved;
+
+ private final long contextId;
+ private final String contextIdStr;
+ private long lastProcessStatesSummaryLogInMs = -1;
+
+
+ private ObjectMapper mapper;
+ private InlineMessage inlineMessage = null;
+
+ private ExecutorService graphExecutorService;
+ private OxmEntityLookup oxmEntityLookup;
+ private boolean rootNodeFound;
+
+ /*
+ * The node cache is intended to be a flat structure indexed by a primary key to avoid needlessly
+ * re-requesting the same self-links over-and-over again, to speed up the overall render time and
+ * more importantly to reduce the network cost of determining information we already have.
+ */
+ private ConcurrentHashMap<String, ActiveInventoryNode> nodeCache;
+
+ /**
+ * Instantiates a new self link node collector.
+ *
+ * @param loader the loader
+ * @throws Exception the exception
+ */
+ public BaseGizmoVisualizationContext(long contextId, GizmoAdapter gizmoAdapter,
+ ExecutorService graphExecutorService, VisualizationConfigs visualizationConfigs,
+ OxmEntityLookup oxmEntityLookup) throws Exception {
+
+ this.contextId = contextId;
+ this.contextIdStr = "[Context-Id=" + contextId + "]";
+ this.gizmoAdapter = gizmoAdapter;
+ this.graphExecutorService = graphExecutorService;
+ this.visualizationConfigs = visualizationConfigs;
+ this.oxmEntityLookup = oxmEntityLookup;
+
+ this.nodeCache = new ConcurrentHashMap<String, ActiveInventoryNode>();
+ this.numLinksDiscovered = new AtomicInteger(0);
+ this.totalLinksRetrieved = new AtomicInteger(0);
+ this.numSuccessfulLinkResolveFromCache = new AtomicInteger(0);
+ this.numSuccessfulLinkResolveFromFromServer = new AtomicInteger(0);
+ this.numFailedLinkResolve = new AtomicInteger(0);
+ this.aaiWorkOnHand = new AtomicInteger(0);
+
+ this.mapper = new ObjectMapper();
+ mapper.setSerializationInclusion(Include.NON_EMPTY);
+ mapper.setPropertyNamingStrategy(new PropertyNamingStrategy.KebabCaseStrategy());
+ this.rootNodeFound = false;
+ }
+
+ protected boolean isRootNodeFound() {
+ return rootNodeFound;
+ }
+
+ protected void setRootNodeFound(boolean rootNodeFound) {
+ this.rootNodeFound = rootNodeFound;
+ }
+
+ public long getContextId() {
+ return contextId;
+ }
+
+ public GizmoAdapter getGizmoAdapter() {
+ return gizmoAdapter;
+ }
+
+ /**
+ * Process self link response.
+ *
+ * @param nodeId the node id
+ */
+ private void processSelfLinkResponse(String nodeId) {
+
+ if (nodeId == null) {
+ LOG.error(AaiUiMsgs.SELF_LINK_PROCESSING_ERROR,
+ "Cannot process self link" + " response because nodeId is null");
+ return;
+ }
+
+ ActiveInventoryNode ain = nodeCache.get(nodeId);
+
+ if (ain == null) {
+ LOG.error(AaiUiMsgs.SELF_LINK_PROCESSING_ERROR,
+ "Cannot process self link response" + " because can't find node for id = " + nodeId);
+ return;
+ }
+
+ GizmoEntity gizmoEntity = null;
+
+ try {
+ gizmoEntity = mapper.readValue(ain.getOpResult().getResult(), GizmoEntity.class);
+ } catch (Exception exc) {
+ exc.printStackTrace();
+ LOG.error(AaiUiMsgs.SELF_LINK_JSON_PARSE_ERROR, "Failed to marshal json"
+ + " response str into JsonNode with error, " + exc.getLocalizedMessage());
+ ain.changeState(NodeProcessingState.ERROR,
+ NodeProcessingAction.SELF_LINK_RESPONSE_PARSE_ERROR);
+ return;
+ }
+
+ if (gizmoEntity == null) {
+
+ LOG.error(AaiUiMsgs.SELF_LINK_JSON_PARSE_ERROR,
+ "Failed to parse json node str." + " Parse resulted a null value.");
+ ain.changeState(NodeProcessingState.ERROR,
+ NodeProcessingAction.SELF_LINK_RESPONSE_PARSE_ERROR);
+ return;
+ }
+
+ /*
+ * Now that we have the gizmo entity we can populate the AIN node with it, as well as the
+ * relationships
+ */
+
+ ain.setEntityType(gizmoEntity.getType());
+
+ ain.setPrimaryKeyName(getEntityTypePrimaryKeyName(gizmoEntity.getType()));
+
+ OxmEntityDescriptor descriptor = oxmEntityLookup.getEntityDescriptors().get(gizmoEntity);
+
+ if (descriptor != null) {
+ ain.setPrimaryKeyValue(getPrimaryKeyValues(gizmoEntity.getProperties(),
+ descriptor.getPrimaryKeyAttributeNames()));
+ } else {
+ LOG.error(AaiUiMsgs.ERROR_GENERIC, "Could not determine oxm descriptor for entity type = " + gizmoEntity.getType());
+ }
+
+ gizmoEntity.getProperties().forEach((key, value) -> {
+ ain.getProperties().put(key, value);
+ });
+
+ // add edit attributes link
+ if (ain.getSelfLink() != null) {
+ ain.addProperty(SparkyConstants.URI_ATTR_NAME, ain.getSelfLink());
+ }
+
+
+
+ /*
+ * Only discover neighbors if our depth is less than the Max-Traversal-Depth
+ */
+
+ if (ain.getNodeDepth() < this.visualizationConfigs.getMaxSelfLinkTraversalDepth()) {
+
+ /*
+ * I think the next thing to do is:
+ *
+ * 1. Calculate the source / target node id 2. Add the nodeId to the incoming / outgoing links
+ * collection 3. Add the node to the node cache for processing
+ */
+
+ String resourceLink = null;
+ String relationshipNodeId = null;
+ ActiveInventoryNode relationshipNode = null;
+
+ for (GizmoRelationshipHint inRelationship : gizmoEntity.getIn()) {
+
+ if (inRelationship.getSource() != null) {
+
+ resourceLink = NodeUtils.extractRawGizmoPathWithoutVersion(inRelationship.getSource());
+ relationshipNodeId = NodeUtils.generateUniqueShaDigest(resourceLink);
+
+ if (!nodeCache.containsKey(relationshipNodeId)) {
+
+ relationshipNode = new ActiveInventoryNode(visualizationConfigs, oxmEntityLookup);
+ relationshipNode.setNodeId(relationshipNodeId);
+ relationshipNode.setSelfLink(resourceLink);
+ relationshipNode.changeState(NodeProcessingState.SELF_LINK_UNRESOLVED,
+ NodeProcessingAction.NEW_NODE_PROCESSED);
+
+ ain.addInboundNeighbor(relationshipNodeId);
+
+ addNode(relationshipNode);
+
+ }
+ }
+
+ }
+
+ for (GizmoRelationshipHint outRelationship : gizmoEntity.getOut()) {
+
+ if (outRelationship.getTarget() != null) {
+
+ resourceLink = NodeUtils.extractRawGizmoPathWithoutVersion(outRelationship.getTarget());
+ relationshipNodeId = NodeUtils.generateUniqueShaDigest(resourceLink);
+
+ if (!nodeCache.containsKey(relationshipNodeId)) {
+
+ relationshipNode = new ActiveInventoryNode(visualizationConfigs, oxmEntityLookup);
+ relationshipNode.setNodeId(relationshipNodeId);
+ relationshipNode.setSelfLink(resourceLink);
+ relationshipNode.changeState(NodeProcessingState.SELF_LINK_UNRESOLVED,
+ NodeProcessingAction.NEW_NODE_PROCESSED);
+
+ ain.addOutboundNeighbor(relationshipNodeId);
+
+ addNode(relationshipNode);
+
+ }
+ }
+
+ }
+ }
+
+ ain.changeState(NodeProcessingState.READY, NodeProcessingAction.SELF_LINK_RESPONSE_PARSE_OK);
+
+ }
+
+ /**
+ * Perform self link resolve.
+ *
+ * @param nodeId the node id
+ */
+ private void performSelfLinkResolve(String nodeId) {
+
+ if (nodeId == null) {
+ LOG.error(AaiUiMsgs.SELF_LINK_PROCESSING_ERROR,
+ "Resolve of self-link" + " has been skipped because provided nodeId is null");
+ return;
+ }
+
+ ActiveInventoryNode ain = nodeCache.get(nodeId);
+
+ if (ain == null) {
+ LOG.error(AaiUiMsgs.SELF_LINK_PROCESSING_ERROR, "Failed to find node with id, " + nodeId
+ + ", from node cache. Resolve self-link method has been skipped.");
+ return;
+ }
+
+ if (!ain.isSelfLinkPendingResolve()) {
+
+ ain.setSelfLinkPendingResolve(true);
+
+ // kick off async self-link resolution
+
+ if (LOG.isDebugEnabled()) {
+ LOG.debug(AaiUiMsgs.DEBUG_GENERIC,
+ "About to process node in SELF_LINK_UNPROCESSED State, link = " + ain.getSelfLink());
+ }
+
+ numLinksDiscovered.incrementAndGet();
+
+ /*
+ * If the current node is the search target, we want to see everything the node has to offer
+ * from the self-link and not filter it to a single node.
+ */
+
+ NodeProcessingTransaction txn = new NodeProcessingTransaction();
+ txn.setProcessingNode(ain);
+ txn.setRequestParameters(null);
+ aaiWorkOnHand.incrementAndGet();
+ supplyAsync(new PerformGizmoNodeSelfLinkProcessingTask(txn, null, gizmoAdapter),
+ graphExecutorService).whenComplete((nodeTxn, error) -> {
+
+ if (error != null) {
+
+ /*
+ * an error processing the self link should probably result in the node processing
+ * state shifting to ERROR
+ */
+
+ nodeTxn.getProcessingNode().setSelflinkRetrievalFailure(true);
+
+ nodeTxn.getProcessingNode().changeState(NodeProcessingState.ERROR,
+ NodeProcessingAction.SELF_LINK_RESOLVE_ERROR);
+
+ nodeTxn.getProcessingNode().setSelfLinkPendingResolve(false);
+
+ } else {
+
+ totalLinksRetrieved.incrementAndGet();
+
+ OperationResult opResult = nodeTxn.getOpResult();
+
+ if (opResult != null && opResult.wasSuccessful()) {
+
+ if (!opResult.wasSuccessful()) {
+ numFailedLinkResolve.incrementAndGet();
+ }
+
+ if (opResult.isFromCache()) {
+ numSuccessfulLinkResolveFromCache.incrementAndGet();
+ } else {
+ numSuccessfulLinkResolveFromFromServer.incrementAndGet();
+ }
+
+ // success path
+ nodeTxn.getProcessingNode().setOpResult(opResult);
+ nodeTxn.getProcessingNode().changeState(
+ NodeProcessingState.SELF_LINK_RESPONSE_UNPROCESSED,
+ NodeProcessingAction.SELF_LINK_RESOLVE_OK);
+
+ nodeTxn.getProcessingNode().setSelfLinkProcessed(true);
+ nodeTxn.getProcessingNode().setSelfLinkPendingResolve(false);
+
+ } else {
+ LOG.error(AaiUiMsgs.SELF_LINK_PROCESSING_ERROR,
+ "Self Link retrieval for link," + txn.getSelfLinkWithModifiers()
+ + ", failed with error code," + nodeTxn.getOpResult().getResultCode()
+ + ", and message," + nodeTxn.getOpResult().getResult());
+
+ nodeTxn.getProcessingNode().setSelflinkRetrievalFailure(true);
+ nodeTxn.getProcessingNode().setSelfLinkProcessed(true);
+
+ nodeTxn.getProcessingNode().changeState(NodeProcessingState.ERROR,
+ NodeProcessingAction.SELF_LINK_RESOLVE_ERROR);
+
+ nodeTxn.getProcessingNode().setSelfLinkPendingResolve(false);
+
+ }
+ }
+
+ aaiWorkOnHand.decrementAndGet();
+
+ });
+
+ }
+
+ }
+
+ public GizmoRelationshipEntity getGizmoRelationshipEntity(String gizmoJsonResponse) {
+
+ GizmoRelationshipEntity gizmoRelationship = null;
+ try {
+ gizmoRelationship = mapper.readValue(gizmoJsonResponse, GizmoRelationshipEntity.class);
+ } catch (IOException exc) {
+ LOG.error(AaiUiMsgs.ERROR_GENERIC, "Failed to map json to GizmoRelationshipEntity. Error: " + exc.getMessage());
+ }
+
+ return gizmoRelationship;
+
+ }
+
+ public String getPrimaryKeyValues(Map<String, String> properties, List<String> pkeyNames) {
+
+ StringBuilder sb = new StringBuilder(64);
+
+ if (pkeyNames.size() > 0) {
+ String primaryKey = properties.get(pkeyNames.get(0));
+ if (primaryKey != null) {
+ sb.append(primaryKey);
+ } else {
+ // this should be a fatal error because unless we can
+ // successfully retrieve all the expected keys we'll end up
+ // with a garbage node
+ LOG.error(AaiUiMsgs.EXTRACTION_ERROR, "ERROR: Failed to extract" + " keyName, "
+ + pkeyNames.get(0) + ", from properties , " + properties);
+ return null;
+ }
+
+ for (int i = 1; i < pkeyNames.size(); i++) {
+
+ String kv = properties.get(pkeyNames.get(i));
+ if (kv != null) {
+ sb.append("/").append(kv);
+ } else {
+ // this should be a fatal error because unless we can
+ // successfully retrieve all the expected keys we'll end up
+ // with a garbage node
+ LOG.error(AaiUiMsgs.EXTRACTION_ERROR, "ERROR: failed to extract keyName, "
+ + pkeyNames.get(i) + ", from properties, " + properties);
+ return null;
+ }
+ }
+
+ return sb.toString();
+
+ }
+
+ return null;
+
+ }
+
+
+
+ /**
+ * Find and mark root node.
+ *
+ * @param queryParams the query params
+ * @return true, if successful
+ */
+ private void findAndMarkRootNode(QueryParams queryParams) {
+
+ if (isRootNodeFound()) {
+ return;
+ }
+
+ for (ActiveInventoryNode cacheNode : nodeCache.values()) {
+
+ if (queryParams.getSearchTargetNodeId().equals(cacheNode.getNodeId())) {
+ cacheNode.setNodeDepth(0);
+ cacheNode.setRootNode(true);
+ LOG.info(AaiUiMsgs.ROOT_NODE_DISCOVERED, queryParams.getSearchTargetNodeId());
+ setRootNodeFound(true);
+ }
+ }
+
+ }
+
+ public void addNode(ActiveInventoryNode node) {
+
+ if (node == null) {
+ return;
+ }
+
+ nodeCache.putIfAbsent(node.getNodeId(), node);
+ }
+
+ public VisualizationConfigs getVisualizationConfigs() {
+ return visualizationConfigs;
+ }
+
+ public void setVisualizationConfigs(VisualizationConfigs visualizationConfigs) {
+ this.visualizationConfigs = visualizationConfigs;
+ }
+
+ public OxmEntityLookup getOxmEntityLookup() {
+ return oxmEntityLookup;
+ }
+
+ public void setOxmEntityLookup(OxmEntityLookup oxmEntityLookup) {
+ this.oxmEntityLookup = oxmEntityLookup;
+ }
+
+ public ObjectMapper getMapper() {
+ return mapper;
+ }
+
+ public void setMapper(ObjectMapper mapper) {
+ this.mapper = mapper;
+ }
+
+ private void dumpThrottledWorkOnHandLog() {
+ dumpThrottledWorkOnHandLog(false);
+ }
+
+ private void dumpThrottledWorkOnHandLog(boolean override) {
+
+ if ((lastProcessStatesSummaryLogInMs < 0)
+ || ((System.currentTimeMillis() > (lastProcessStatesSummaryLogInMs + 5000))) || override) {
+
+ lastProcessStatesSummaryLogInMs = System.currentTimeMillis();
+
+ int numInit = 0;
+ int numReady = 0;
+ int numError = 0;
+ int numSelfLinkUnresolved = 0;
+ int numSelfLinkResponseUnprocessed = 0;
+
+ for (ActiveInventoryNode cacheNode : nodeCache.values()) {
+
+ switch (cacheNode.getState()) {
+
+ case INIT: {
+ numInit++;
+ break;
+ }
+
+ case READY: {
+ numReady++;
+ break;
+ }
+ case ERROR: {
+ numError++;
+ break;
+ }
+
+ case SELF_LINK_UNRESOLVED: {
+ numSelfLinkUnresolved++;
+ break;
+ }
+
+ case SELF_LINK_RESPONSE_UNPROCESSED: {
+ numSelfLinkResponseUnprocessed++;
+ break;
+ }
+
+ default:
+ break;
+ }
+
+ }
+
+ LOG.info(AaiUiMsgs.INFO_GENERIC,
+ String.format(
+ "ProcessCurrentStates for ContextId=%s, [PendingTxns=%d, numInit=%d, numSelfLinkUnresolved=%d, numSelfLinkResponseUnProcessed=%d, numReady=%d, numError=%d]",
+ contextIdStr, aaiWorkOnHand.get(), numInit, numSelfLinkUnresolved, numSelfLinkResponseUnprocessed,
+ numReady, numError));
+ }
+
+ }
+
+ /**
+ * Process current node states.
+ *
+ * @param rootNodeDiscovered the root node discovered
+ */
+ private void processCurrentNodeStates(QueryParams queryParams) {
+ /*
+ * Force an evaluation of node depths before determining if we should limit state-based
+ * traversal or processing.
+ */
+
+ findAndMarkRootNode(queryParams);
+
+ verifyOutboundNeighbors();
+
+ for (ActiveInventoryNode cacheNode : nodeCache.values()) {
+
+ if (LOG.isDebugEnabled()) {
+ LOG.debug(AaiUiMsgs.DEBUG_GENERIC, "processCurrentNodeState(), nid = "
+ + cacheNode.getNodeId() + " , nodeDepth = " + cacheNode.getNodeDepth());
+ }
+
+ switch (cacheNode.getState()) {
+
+ case INIT: {
+ processInitialState(cacheNode.getNodeId());
+ break;
+ }
+
+ case READY:
+ case ERROR: {
+ break;
+ }
+
+ case SELF_LINK_UNRESOLVED: {
+ performSelfLinkResolve(cacheNode.getNodeId());
+ break;
+ }
+
+ case SELF_LINK_RESPONSE_UNPROCESSED: {
+ processSelfLinkResponse(cacheNode.getNodeId());
+ break;
+ }
+
+ default:
+ break;
+ }
+
+ }
+
+ dumpThrottledWorkOnHandLog();
+
+ }
+
+
+
+ public int getNumSuccessfulLinkResolveFromCache() {
+ return numSuccessfulLinkResolveFromCache.get();
+ }
+
+ public int getNumSuccessfulLinkResolveFromFromServer() {
+ return numSuccessfulLinkResolveFromFromServer.get();
+ }
+
+ public int getNumFailedLinkResolve() {
+ return numFailedLinkResolve.get();
+ }
+
+ public InlineMessage getInlineMessage() {
+ return inlineMessage;
+ }
+
+ public void setInlineMessage(InlineMessage inlineMessage) {
+ this.inlineMessage = inlineMessage;
+ }
+
+ public ConcurrentHashMap<String, ActiveInventoryNode> getNodeCache() {
+ return nodeCache;
+ }
+
+
+
+ /**
+ * Process initial state.
+ *
+ * @param nodeId the node id
+ */
+ private void processInitialState(String nodeId) {
+
+ if (nodeId == null) {
+ LOG.error(AaiUiMsgs.FAILED_TO_PROCESS_INITIAL_STATE, "Node id is null");
+ return;
+ }
+
+ ActiveInventoryNode cachedNode = nodeCache.get(nodeId);
+
+ if (cachedNode == null) {
+ LOG.error(AaiUiMsgs.FAILED_TO_PROCESS_INITIAL_STATE,
+ "Node cannot be" + " found for nodeId, " + nodeId);
+ return;
+ }
+
+ if (cachedNode.getSelfLink() == null) {
+
+ if (cachedNode.getNodeId() == null) {
+
+ /*
+ * if the self link is null at the INIT state, which could be valid if this node is a
+ * complex attribute group which didn't originate from a self-link, but in that situation
+ * both the node id and node key should already be set.
+ */
+
+ cachedNode.changeState(NodeProcessingState.ERROR, NodeProcessingAction.NODE_IDENTITY_ERROR);
+
+ }
+
+ if (cachedNode.getNodeId() != null) {
+
+ /*
+ * This should be the success path branch if the self-link is not set
+ */
+
+ cachedNode.changeState(NodeProcessingState.SELF_LINK_RESPONSE_UNPROCESSED,
+ NodeProcessingAction.SELF_LINK_RESPONSE_PARSE_OK);
+
+ }
+
+ } else {
+
+ if (cachedNode.hasResolvedSelfLink()) {
+ LOG.error(AaiUiMsgs.INVALID_RESOLVE_STATE_DURING_INIT);
+ cachedNode.changeState(NodeProcessingState.ERROR,
+ NodeProcessingAction.UNEXPECTED_STATE_TRANSITION);
+ } else {
+ cachedNode.changeState(NodeProcessingState.SELF_LINK_UNRESOLVED,
+ NodeProcessingAction.SELF_LINK_SET);
+ }
+ }
+ }
+
+ /**
+ * Process skeleton node.
+ *
+ * @param skeletonNode the skeleton node
+ * @param queryParams the query params
+ */
+ private void processSearchableEntity(SearchableEntity searchTargetEntity,
+ QueryParams queryParams) {
+
+ if (searchTargetEntity == null) {
+ return;
+ }
+
+ if (searchTargetEntity.getId() == null) {
+ LOG.error(AaiUiMsgs.FAILED_TO_PROCESS_SKELETON_NODE, "Failed to process skeleton"
+ + " node because nodeId is null for node, " + searchTargetEntity.getLink());
+ return;
+ }
+
+ ActiveInventoryNode newNode =
+ new ActiveInventoryNode(this.visualizationConfigs, oxmEntityLookup);
+
+ newNode.setNodeId(searchTargetEntity.getId());
+
+ newNode.setNodeDepth(0);
+ newNode.setRootNode(true);
+ LOG.info(AaiUiMsgs.ROOT_NODE_DISCOVERED, queryParams.getSearchTargetNodeId());
+ setRootNodeFound(true);
+
+ newNode.setSelfLink(searchTargetEntity.getLink());
+
+ nodeCache.putIfAbsent(newNode.getNodeId(), newNode);
+ }
+
+ private int getTotalWorkOnHand() {
+
+ int numNodesWithPendingStates = 0;
+
+ if (isRootNodeFound()) {
+ evaluateNodeDepths();
+ }
+
+ for (ActiveInventoryNode n : nodeCache.values()) {
+
+ switch (n.getState()) {
+
+ case READY:
+ case ERROR: {
+ // do nothing, these are our normal
+ // exit states
+ break;
+ }
+
+ default: {
+
+ /*
+ * for all other states, there is work to be done
+ */
+ numNodesWithPendingStates++;
+ }
+
+ }
+
+ }
+
+ return (aaiWorkOnHand.get() + numNodesWithPendingStates);
+
+ }
+
+ /**
+ * Checks for out standing work.
+ *
+ * @return true, if successful
+ */
+ private void processOutstandingWork(QueryParams queryParams) {
+
+ while (getTotalWorkOnHand() > 0) {
+
+ /*
+ * Force an evaluation of node depths before determining if we should limit state-based
+ * traversal or processing.
+ */
+
+ processCurrentNodeStates(queryParams);
+
+ try {
+ Thread.sleep(10);
+ } catch (InterruptedException exc) {
+ LOG.error(AaiUiMsgs.PROCESSING_LOOP_INTERUPTED, exc.getMessage());
+ return;
+ }
+
+ }
+
+ dumpThrottledWorkOnHandLog(true);
+
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see
+ * org.onap.aai.sparky.viewandinspect.services.VisualizationContext#processSelfLinks(org.onap.aai.
+ * sparky.sync.entity.SearchableEntity, org.onap.aai.sparky.viewandinspect.entity.QueryParams)
+ */
+ @Override
+ public void processSelfLinks(SearchableEntity searchtargetEntity, QueryParams queryParams) {
+
+ try {
+
+
+ if (searchtargetEntity == null) {
+ LOG.error(AaiUiMsgs.SELF_LINK_PROCESSING_ERROR,
+ contextIdStr + " - Failed to" + " processSelfLinks, searchtargetEntity is null");
+ return;
+ }
+
+ long startTimeInMs = System.currentTimeMillis();
+
+ processSearchableEntity(searchtargetEntity, queryParams);
+
+ /*
+ * This method is blocking until we decouple it with a CountDownLatch await condition, and
+ * make the internal graph processing more event-y.
+ */
+
+ processOutstandingWork(queryParams);
+
+ long totalResolveTime = (System.currentTimeMillis() - startTimeInMs);
+
+ long opTime = System.currentTimeMillis() - startTimeInMs;
+
+ LOG.info(AaiUiMsgs.ALL_TRANSACTIONS_RESOLVED, String.valueOf(totalResolveTime),
+ String.valueOf(totalLinksRetrieved.get()), String.valueOf(opTime));
+
+ } catch (Exception exc) {
+ LOG.error(AaiUiMsgs.VISUALIZATION_OUTPUT_ERROR, exc.getMessage());
+ }
+
+ }
+
+ /**
+ * Verify outbound neighbors.
+ */
+ private void verifyOutboundNeighbors() {
+
+ for (ActiveInventoryNode srcNode : nodeCache.values()) {
+
+ for (String targetNodeId : srcNode.getOutboundNeighbors()) {
+
+ ActiveInventoryNode targetNode = nodeCache.get(targetNodeId);
+
+ if (targetNode != null && srcNode.getNodeId() != null) {
+
+ targetNode.addInboundNeighbor(srcNode.getNodeId());
+
+ if (this.visualizationConfigs.makeAllNeighborsBidirectional()) {
+ targetNode.addOutboundNeighbor(srcNode.getNodeId());
+ }
+
+ }
+
+ }
+
+ }
+
+ }
+
+ /**
+ * Evaluate node depths.
+ */
+ private void evaluateNodeDepths() {
+
+ int numChanged = -1;
+ int numAttempts = 0;
+
+ while (numChanged != 0) {
+
+ numChanged = 0;
+ numAttempts++;
+
+ for (ActiveInventoryNode srcNode : nodeCache.values()) {
+
+ if (srcNode.getState() == NodeProcessingState.INIT) {
+
+ /*
+ * this maybe the only state that we don't want to to process the node depth on, because
+ * typically it won't have any valid fields set, and it may remain in a partial state
+ * until we have processed the self-link.
+ */
+
+ continue;
+
+ }
+
+ for (String targetNodeId : srcNode.getOutboundNeighbors()) {
+ ActiveInventoryNode targetNode = nodeCache.get(targetNodeId);
+
+ if (targetNode != null) {
+
+ if (targetNode.changeDepth(srcNode.getNodeDepth() + 1)) {
+ numChanged++;
+ }
+ }
+ }
+
+ for (String targetNodeId : srcNode.getInboundNeighbors()) {
+ ActiveInventoryNode targetNode = nodeCache.get(targetNodeId);
+
+ if (targetNode != null) {
+
+ if (targetNode.changeDepth(srcNode.getNodeDepth() + 1)) {
+ numChanged++;
+ }
+ }
+ }
+ }
+
+ if (numAttempts >= MAX_DEPTH_EVALUATION_ATTEMPTS) {
+ LOG.info(AaiUiMsgs.MAX_EVALUATION_ATTEMPTS_EXCEEDED);
+ return;
+ }
+
+ }
+
+ if (LOG.isDebugEnabled()) {
+ if (numAttempts > 0) {
+ LOG.debug(AaiUiMsgs.DEBUG_GENERIC,
+ "Evaluate node depths completed in " + numAttempts + " attempts");
+ } else {
+ LOG.debug(AaiUiMsgs.DEBUG_GENERIC,
+ "Evaluate node depths completed in 0 attempts because all nodes at correct depth");
+ }
+ }
+
+ }
+
+
+ /**
+ * Gets the entity type primary key name.
+ *
+ * @param entityType the entity type
+ * @return the entity type primary key name
+ */
+
+
+ private String getEntityTypePrimaryKeyName(String entityType) {
+
+ if (entityType == null) {
+ LOG.error(AaiUiMsgs.FAILED_TO_DETERMINE,
+ "node primary key" + " name because entity type is null");
+ return null;
+ }
+
+ OxmEntityDescriptor descriptor = oxmEntityLookup.getEntityDescriptors().get(entityType);
+
+ if (descriptor == null) {
+ LOG.error(AaiUiMsgs.FAILED_TO_DETERMINE,
+ "oxm entity" + " descriptor for entityType = " + entityType);
+ return null;
+ }
+
+ List<String> pkeyNames = descriptor.getPrimaryKeyAttributeNames();
+
+ if (pkeyNames == null || pkeyNames.size() == 0) {
+ LOG.error(AaiUiMsgs.FAILED_TO_DETERMINE,
+ "node primary" + " key because descriptor primary key names is empty");
+ return null;
+ }
+
+ return NodeUtils.concatArray(pkeyNames, "/");
+
+ }
+
+}