1 files changed, 772 insertions, 0 deletions
diff --git a/src/main/java/org/openecomp/sparky/synchronizer/AggregationSynchronizer.java b/src/main/java/org/openecomp/sparky/synchronizer/AggregationSynchronizer.java
new file mode 100644
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--- /dev/null
+++ b/src/main/java/org/openecomp/sparky/synchronizer/AggregationSynchronizer.java
@@ -0,0 +1,772 @@
+/**
+ * ============LICENSE_START===================================================
+ * SPARKY (AAI UI service)
+ * ============================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * All rights reserved.
+ * ============================================================================
+ * 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 and OpenECOMP are trademarks
+ * and service marks of AT&T Intellectual Property.
+ */
+
+package org.openecomp.sparky.synchronizer;
+
+import static java.util.concurrent.CompletableFuture.supplyAsync;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.sql.Timestamp;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Deque;
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentLinkedDeque;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Supplier;
+
+import javax.json.Json;
+
+import org.openecomp.cl.api.Logger;
+import org.openecomp.cl.eelf.LoggerFactory;
+import org.openecomp.sparky.config.oxm.OxmEntityDescriptor;
+import org.openecomp.sparky.dal.NetworkTransaction;
+import org.openecomp.sparky.dal.elasticsearch.config.ElasticSearchConfig;
+import org.openecomp.sparky.dal.rest.HttpMethod;
+import org.openecomp.sparky.dal.rest.OperationResult;
+import org.openecomp.sparky.logging.AaiUiMsgs;
+import org.openecomp.sparky.synchronizer.config.SynchronizerConfiguration;
+import org.openecomp.sparky.synchronizer.entity.AggregationEntity;
+import org.openecomp.sparky.synchronizer.entity.MergableEntity;
+import org.openecomp.sparky.synchronizer.entity.SelfLinkDescriptor;
+import org.openecomp.sparky.synchronizer.enumeration.OperationState;
+import org.openecomp.sparky.synchronizer.enumeration.SynchronizerState;
+import org.openecomp.sparky.synchronizer.task.PerformActiveInventoryRetrieval;
+import org.openecomp.sparky.synchronizer.task.PerformElasticSearchPut;
+import org.openecomp.sparky.synchronizer.task.PerformElasticSearchRetrieval;
+import org.openecomp.sparky.synchronizer.task.PerformElasticSearchUpdate;
+import org.openecomp.sparky.util.NodeUtils;
+import org.slf4j.MDC;
+
+import org.openecomp.cl.mdc.MdcContext;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectReader;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+
+/**
+ * The Class AutosuggestionSynchronizer.
+ */
+public class AggregationSynchronizer extends AbstractEntitySynchronizer
+    implements IndexSynchronizer {
+
+  /**
+   * The Class RetryAggregationEntitySyncContainer.
+   */
+  private class RetryAggregationEntitySyncContainer {
+    NetworkTransaction txn;
+    AggregationEntity ae;
+
+    /**
+     * Instantiates a new retry aggregation entity sync container.
+     *
+     * @param txn the txn
+     * @param ae the se
+     */
+    public RetryAggregationEntitySyncContainer(NetworkTransaction txn, AggregationEntity ae) {
+      this.txn = txn;
+      this.ae = ae;
+    }
+
+    public NetworkTransaction getNetworkTransaction() {
+      return txn;
+    }
+
+    public AggregationEntity getAggregationEntity() {
+      return ae;
+    }
+  }
+  
+  private static final Logger LOG =
+      LoggerFactory.getInstance().getLogger(AggregationSynchronizer.class);
+  private static final String INSERTION_DATE_TIME_FORMAT = "yyyyMMdd'T'HHmmssZ";
+
+  private boolean allWorkEnumerated;
+  private Deque<SelfLinkDescriptor> selflinks;
+  private Deque<RetryAggregationEntitySyncContainer> retryQueue;
+  private Map<String, Integer> retryLimitTracker;
+  protected ExecutorService esPutExecutor;
+  private ConcurrentHashMap<String, AtomicInteger> entityCounters;
+  private boolean syncInProgress;
+  private Map<String, String> contextMap;
+  private String entityType;
+
+  /**
+   * Instantiates a new entity aggregation synchronizer.
+   *
+   * @param indexName the index name
+   * @throws Exception the exception
+   */
+  public AggregationSynchronizer(String entityType, String indexName) throws Exception {
+    super(LOG, "AGGES-" + indexName.toUpperCase(), 2, 5, 5, indexName); // multiple Autosuggestion
+                                                                       // Entity Synchronizer will
+                                                                       // run for different indices
+    
+    this.entityType = entityType;
+    this.allWorkEnumerated = false;
+    this.entityCounters = new ConcurrentHashMap<String, AtomicInteger>();
+    this.synchronizerName = "Entity Aggregation Synchronizer";
+    this.enabledStatFlags = EnumSet.of(StatFlag.AAI_REST_STATS, StatFlag.ES_REST_STATS);
+    this.syncInProgress = false;
+    this.allWorkEnumerated = false;
+    this.selflinks = new ConcurrentLinkedDeque<SelfLinkDescriptor>();
+    this.retryQueue = new ConcurrentLinkedDeque<RetryAggregationEntitySyncContainer>();
+    this.retryLimitTracker = new ConcurrentHashMap<String, Integer>();
+    
+    this.esPutExecutor = NodeUtils.createNamedExecutor("AGGES-ES-PUT", 1, LOG);
+    Map<String, OxmEntityDescriptor> descriptor = new HashMap<String, OxmEntityDescriptor>();
+    descriptor.put(entityType, oxmModelLoader.getEntityDescriptors().get(entityType));
+    this.aaiEntityStats.initializeCountersFromOxmEntityDescriptors(
+        descriptor);
+    this.esEntityStats.initializeCountersFromOxmEntityDescriptors(
+        descriptor);
+    this.contextMap = MDC.getCopyOfContextMap();
+  }
+
+  /**
+   * Collect all the work.
+   *
+   * @return the operation state
+   */
+  private OperationState collectAllTheWork() {
+    final Map<String, String> contextMap = MDC.getCopyOfContextMap();
+    final String entity = this.getEntityType();
+    try {
+
+      aaiWorkOnHand.set(1);
+
+      supplyAsync(new Supplier<Void>() {
+
+        @Override
+        public Void get() {
+          MDC.setContextMap(contextMap);
+          OperationResult typeLinksResult = null;
+          try {
+            typeLinksResult = aaiDataProvider.getSelfLinksByEntityType(entity);
+            aaiWorkOnHand.decrementAndGet();
+            processEntityTypeSelfLinks(typeLinksResult);
+          } catch (Exception exc) {
+            // TODO -> LOG, what should be logged here?
+          }
+
+          return null;
+        }
+
+      }, aaiExecutor).whenComplete((result, error) -> {
+
+        if (error != null) {
+          LOG.error(AaiUiMsgs.ERROR_GENERIC,
+              "An error occurred getting data from AAI. Error = " + error.getMessage());
+        }
+      });
+
+      while (aaiWorkOnHand.get() != 0) {
+
+        if (LOG.isDebugEnabled()) {
+          LOG.debug(AaiUiMsgs.WAIT_FOR_ALL_SELFLINKS_TO_BE_COLLECTED);
+        }
+
+        Thread.sleep(1000);
+      }
+
+      aaiWorkOnHand.set(selflinks.size());
+      allWorkEnumerated = true;
+      syncEntityTypes();
+
+      while (!isSyncDone()) {
+        performRetrySync();
+        Thread.sleep(1000);
+      }
+
+      /*
+       * Make sure we don't hang on to retries that failed which could cause issues during future
+       * syncs
+       */
+      retryLimitTracker.clear();
+
+    } catch (Exception exc) {
+      // TODO -> LOG, waht should be logged here?
+    }
+
+    return OperationState.OK;
+  }
+  
+  
+  /**
+   * Perform retry sync.
+   */
+  private void performRetrySync() {
+    while (retryQueue.peek() != null) {
+
+      RetryAggregationEntitySyncContainer rsc = retryQueue.poll();
+      if (rsc != null) {
+
+        AggregationEntity ae = rsc.getAggregationEntity();
+        NetworkTransaction txn = rsc.getNetworkTransaction();
+
+        String link = null;
+        try {
+          /*
+           * In this retry flow the se object has already derived its fields
+           */
+          link = getElasticFullUrl("/" + ae.getId(), getIndexName());
+        } catch (Exception exc) {
+          LOG.error(AaiUiMsgs.ES_FAILED_TO_CONSTRUCT_URI, exc.getLocalizedMessage());
+        }
+
+        if (link != null) {
+          NetworkTransaction retryTransaction = new NetworkTransaction();
+          retryTransaction.setLink(link);
+          retryTransaction.setEntityType(txn.getEntityType());
+          retryTransaction.setDescriptor(txn.getDescriptor());
+          retryTransaction.setOperationType(HttpMethod.GET);
+
+          /*
+           * IMPORTANT - DO NOT incrementAndGet the esWorkOnHand as this is a retry flow! We already
+           * called incrementAndGet when queuing the failed PUT!
+           */
+
+          supplyAsync(new PerformElasticSearchRetrieval(retryTransaction, esDataProvider),
+              esExecutor).whenComplete((result, error) -> {
+
+                esWorkOnHand.decrementAndGet();
+
+                if (error != null) {
+                  LOG.error(AaiUiMsgs.ES_RETRIEVAL_FAILED_RESYNC, error.getLocalizedMessage());
+                } else {
+                  updateElasticSearchCounters(result);
+                  performDocumentUpsert(result, ae);
+                }
+              });
+        }
+
+      }
+    }
+  }
+  
+  /**
+   * Perform document upsert.
+   *
+   * @param esGetTxn the es get txn
+   * @param ae the ae
+   */
+  protected void performDocumentUpsert(NetworkTransaction esGetTxn, AggregationEntity ae) {
+    /**
+     * <p>
+     * <ul>
+     * As part of the response processing we need to do the following:
+     * <li>1. Extract the version (if present), it will be the ETAG when we use the
+     * Search-Abstraction-Service
+     * <li>2. Spawn next task which is to do the PUT operation into elastic with or with the version
+     * tag
+     * <li>a) if version is null or RC=404, then standard put, no _update with version tag
+     * <li>b) if version != null, do PUT with _update?version= versionNumber in the URI to elastic
+     * </ul>
+     * </p>
+     */
+    String link = null;
+    try {
+      link = getElasticFullUrl("/" + ae.getId(), getIndexName());
+    } catch (Exception exc) {
+      LOG.error(AaiUiMsgs.ES_LINK_UPSERT, exc.getLocalizedMessage());
+      return;
+    }
+
+    String versionNumber = null;
+    boolean wasEntryDiscovered = false;
+    if (esGetTxn.getOperationResult().getResultCode() == 404) {
+      LOG.info(AaiUiMsgs.ES_SIMPLE_PUT, ae.getEntityPrimaryKeyValue());
+    } else if (esGetTxn.getOperationResult().getResultCode() == 200) {
+      wasEntryDiscovered = true;
+      try {
+        versionNumber = NodeUtils.extractFieldValueFromObject(
+            NodeUtils.convertJsonStrToJsonNode(esGetTxn.getOperationResult().getResult()),
+            "_version");
+      } catch (IOException exc) {
+        String message =
+            "Error extracting version number from response, aborting aggregation entity sync of "
+                + ae.getEntityPrimaryKeyValue() + ". Error - " + exc.getLocalizedMessage();
+        LOG.error(AaiUiMsgs.ERROR_EXTRACTING_FROM_RESPONSE, message);
+        return;
+      }
+    } else {
+      /*
+       * Not being a 200 does not mean a failure. eg 201 is returned for created. TODO -> Should we
+       * return.
+       */
+      LOG.error(AaiUiMsgs.ES_OPERATION_RETURN_CODE,
+          String.valueOf(esGetTxn.getOperationResult().getResultCode()));
+      return;
+    }
+
+    try {
+      String jsonPayload = null;
+      if (wasEntryDiscovered) {
+        try {
+          ArrayList<JsonNode> sourceObject = new ArrayList<JsonNode>();
+          NodeUtils.extractObjectsByKey(
+              NodeUtils.convertJsonStrToJsonNode(esGetTxn.getOperationResult().getResult()),
+              "_source", sourceObject);
+
+          if (!sourceObject.isEmpty()) {
+            String responseSource = NodeUtils.convertObjectToJson(sourceObject.get(0), false);
+            MergableEntity me = mapper.readValue(responseSource, MergableEntity.class);
+            ObjectReader updater = mapper.readerForUpdating(me);
+            MergableEntity merged = updater.readValue(ae.getIndexDocumentJson());
+            jsonPayload = mapper.writeValueAsString(merged);
+          }
+        } catch (IOException exc) {
+          String message =
+              "Error extracting source value from response, aborting aggregation entity sync of "
+                  + ae.getEntityPrimaryKeyValue() + ". Error - " + exc.getLocalizedMessage();
+          LOG.error(AaiUiMsgs.ERROR_EXTRACTING_FROM_RESPONSE, message);
+          return;
+        }
+      } else {
+        jsonPayload = ae.getIndexDocumentJson();
+      }
+
+      if (wasEntryDiscovered) {
+        if (versionNumber != null && jsonPayload != null) {
+
+          String requestPayload = esDataProvider.buildBulkImportOperationRequest(getIndexName(),
+              ElasticSearchConfig.getConfig().getType(), ae.getId(), versionNumber, jsonPayload);
+
+          NetworkTransaction transactionTracker = new NetworkTransaction();
+          transactionTracker.setEntityType(esGetTxn.getEntityType());
+          transactionTracker.setDescriptor(esGetTxn.getDescriptor());
+          transactionTracker.setOperationType(HttpMethod.PUT);
+
+          esWorkOnHand.incrementAndGet();
+          supplyAsync(new PerformElasticSearchUpdate(ElasticSearchConfig.getConfig().getBulkUrl(),
+              requestPayload, esDataProvider, transactionTracker), esPutExecutor)
+                  .whenComplete((result, error) -> {
+
+                    esWorkOnHand.decrementAndGet();
+
+                    if (error != null) {
+                      String message = "Aggregation entity sync UPDATE PUT error - "
+                          + error.getLocalizedMessage();
+                      LOG.error(AaiUiMsgs.ERROR_GENERIC, message);
+                    } else {
+                      updateElasticSearchCounters(result);
+                      processStoreDocumentResult(result, esGetTxn, ae);
+                    }
+                  });
+        }
+
+      } else {
+        if (link != null && jsonPayload != null) {
+
+          NetworkTransaction updateElasticTxn = new NetworkTransaction();
+          updateElasticTxn.setLink(link);
+          updateElasticTxn.setEntityType(esGetTxn.getEntityType());
+          updateElasticTxn.setDescriptor(esGetTxn.getDescriptor());
+          updateElasticTxn.setOperationType(HttpMethod.PUT);
+
+          esWorkOnHand.incrementAndGet();
+          supplyAsync(new PerformElasticSearchPut(jsonPayload, updateElasticTxn, esDataProvider),
+              esPutExecutor).whenComplete((result, error) -> {
+
+                esWorkOnHand.decrementAndGet();
+
+                if (error != null) {
+                  String message =
+                      "Aggregation entity sync UPDATE PUT error - " + error.getLocalizedMessage();
+                  LOG.error(AaiUiMsgs.ERROR_GENERIC, message);
+                } else {
+                  updateElasticSearchCounters(result);
+                  processStoreDocumentResult(result, esGetTxn, ae);
+                }
+              });
+        }
+      }
+    } catch (Exception exc) {
+      String message = "Exception caught during aggregation entity sync PUT operation. Message - "
+          + exc.getLocalizedMessage();
+      LOG.error(AaiUiMsgs.ERROR_GENERIC, message);
+    }
+  }
+  
+  /**
+   * Should allow retry.
+   *
+   * @param id the id
+   * @return true, if successful
+   */
+  private boolean shouldAllowRetry(String id) {
+    boolean isRetryAllowed = true;
+    if (retryLimitTracker.get(id) != null) {
+      Integer currentCount = retryLimitTracker.get(id);
+      if (currentCount.intValue() >= RETRY_COUNT_PER_ENTITY_LIMIT.intValue()) {
+        isRetryAllowed = false;
+        String message = "Aggregation entity re-sync limit reached for " + id
+            + ", re-sync will no longer be attempted for this entity";
+        LOG.error(AaiUiMsgs.ERROR_GENERIC, message);
+      } else {
+        Integer newCount = new Integer(currentCount.intValue() + 1);
+        retryLimitTracker.put(id, newCount);
+      }
+    } else {
+      Integer firstRetryCount = new Integer(1);
+      retryLimitTracker.put(id, firstRetryCount);
+    }
+
+    return isRetryAllowed;
+  }
+  
+  /**
+   * Process store document result.
+   *
+   * @param esPutResult the es put result
+   * @param esGetResult the es get result
+   * @param ae the ae
+   */
+  private void processStoreDocumentResult(NetworkTransaction esPutResult,
+      NetworkTransaction esGetResult, AggregationEntity ae) {
+
+    OperationResult or = esPutResult.getOperationResult();
+
+    if (!or.wasSuccessful()) {
+      if (or.getResultCode() == VERSION_CONFLICT_EXCEPTION_CODE) {
+
+        if (shouldAllowRetry(ae.getId())) {
+          esWorkOnHand.incrementAndGet();
+
+          RetryAggregationEntitySyncContainer rsc =
+              new RetryAggregationEntitySyncContainer(esGetResult, ae);
+          retryQueue.push(rsc);
+
+          String message = "Store document failed during aggregation entity synchronization"
+              + " due to version conflict. Entity will be re-synced.";
+          LOG.warn(AaiUiMsgs.ERROR_GENERIC, message);
+        }
+      } else {
+        String message =
+            "Store document failed during aggregation entity synchronization with result code "
+                + or.getResultCode() + " and result message " + or.getResult();
+        LOG.error(AaiUiMsgs.ERROR_GENERIC, message);
+      }
+    }
+  }
+  
+  /**
+   * Sync entity types.
+   */
+  private void syncEntityTypes() {
+
+    while (selflinks.peek() != null) {
+
+      SelfLinkDescriptor linkDescriptor = selflinks.poll();
+      aaiWorkOnHand.decrementAndGet();
+
+      OxmEntityDescriptor descriptor = null;
+
+      if (linkDescriptor.getSelfLink() != null && linkDescriptor.getEntityType() != null) {
+
+        descriptor = oxmModelLoader.getEntityDescriptor(linkDescriptor.getEntityType());
+
+        if (descriptor == null) {
+          LOG.error(AaiUiMsgs.MISSING_ENTITY_DESCRIPTOR, linkDescriptor.getEntityType());
+          // go to next element in iterator
+          continue;
+        }
+
+        NetworkTransaction txn = new NetworkTransaction();
+        txn.setDescriptor(descriptor);
+        txn.setLink(linkDescriptor.getSelfLink());
+        txn.setOperationType(HttpMethod.GET);
+        txn.setEntityType(linkDescriptor.getEntityType());
+
+        aaiWorkOnHand.incrementAndGet();
+
+        supplyAsync(new PerformActiveInventoryRetrieval(txn, aaiDataProvider), aaiExecutor)
+            .whenComplete((result, error) -> {
+
+              aaiWorkOnHand.decrementAndGet();
+
+              if (error != null) {
+                LOG.error(AaiUiMsgs.AAI_RETRIEVAL_FAILED_GENERIC, error.getLocalizedMessage());
+              } else {
+                if (result == null) {
+                  LOG.error(AaiUiMsgs.AAI_RETRIEVAL_FAILED_FOR_SELF_LINK,
+                      linkDescriptor.getSelfLink());
+                } else {
+                  updateActiveInventoryCounters(result);
+                  fetchDocumentForUpsert(result);
+                }
+              }
+            });
+      }
+
+    }
+
+  }
+  
+  /**
+   * Fetch document for upsert.
+   *
+   * @param txn the txn
+   */
+  private void fetchDocumentForUpsert(NetworkTransaction txn) {
+    // modified
+    if (!txn.getOperationResult().wasSuccessful()) {
+      String message = "Self link failure. Result - " + txn.getOperationResult().getResult();
+      LOG.error(AaiUiMsgs.ERROR_GENERIC, message);
+      return;
+    }
+
+    try {
+        final String jsonResult = txn.getOperationResult().getResult();
+        if (jsonResult != null && jsonResult.length() > 0) {
+
+          AggregationEntity ae = new AggregationEntity(oxmModelLoader);
+          ae.setLink( txn.getLink() );
+          populateAggregationEntityDocument(ae, jsonResult, txn.getDescriptor());
+          ae.deriveFields();
+
+          String link = null;
+          try {
+            link = getElasticFullUrl("/" + ae.getId(), getIndexName());
+          } catch (Exception exc) {
+            LOG.error(AaiUiMsgs.ES_FAILED_TO_CONSTRUCT_QUERY, exc.getLocalizedMessage());
+          }
+
+          if (link != null) {
+            NetworkTransaction n2 = new NetworkTransaction();
+            n2.setLink(link);
+            n2.setEntityType(txn.getEntityType());
+            n2.setDescriptor(txn.getDescriptor());
+            n2.setOperationType(HttpMethod.GET);
+
+            esWorkOnHand.incrementAndGet();
+
+            supplyAsync(new PerformElasticSearchRetrieval(n2, esDataProvider), esExecutor)
+                .whenComplete((result, error) -> {
+
+                  esWorkOnHand.decrementAndGet();
+
+                  if (error != null) {
+                    LOG.error(AaiUiMsgs.ES_RETRIEVAL_FAILED, error.getLocalizedMessage());
+                  } else {
+                    updateElasticSearchCounters(result);
+                    performDocumentUpsert(result, ae);
+                  }
+                });
+          }
+        }
+
+     } catch (JsonProcessingException exc) {
+      // TODO -> LOG, waht should be logged here?
+    } catch (IOException exc) {
+      // TODO -> LOG, waht should be logged here?
+    }
+  }
+  
+  
+  /**
+   * Populate aggregation entity document.
+   *
+   * @param doc the doc
+   * @param result the result
+   * @param resultDescriptor the result descriptor
+   * @throws JsonProcessingException the json processing exception
+   * @throws IOException Signals that an I/O exception has occurred.
+   */
+  protected void populateAggregationEntityDocument(AggregationEntity doc, String result,
+      OxmEntityDescriptor resultDescriptor) throws JsonProcessingException, IOException {
+    doc.setEntityType(resultDescriptor.getEntityName());
+    JsonNode entityNode = mapper.readTree(result);
+    Map<String, Object> map = mapper.convertValue(entityNode, Map.class);
+    doc.copyAttributeKeyValuePair(map);
+  }
+  
+  /**
+   * Process entity type self links.
+   *
+   * @param operationResult the operation result
+   */
+  private void processEntityTypeSelfLinks(OperationResult operationResult) {
+
+    JsonNode rootNode = null;
+
+    final String jsonResult = operationResult.getResult();
+
+    if (jsonResult != null && jsonResult.length() > 0 && operationResult.wasSuccessful()) {
+
+      try {
+        rootNode = mapper.readTree(jsonResult);
+      } catch (IOException exc) {
+        String message =
+            "Could not deserialize JSON (representing operation result) as node tree. " +
+            "Operation result = " + jsonResult + ". " + exc.getLocalizedMessage();
+        LOG.error(AaiUiMsgs.JSON_PROCESSING_ERROR, message);
+      }
+
+      JsonNode resultData = rootNode.get("result-data");
+      ArrayNode resultDataArrayNode = null;
+
+      if (resultData.isArray()) {
+        resultDataArrayNode = (ArrayNode) resultData;
+
+        Iterator<JsonNode> elementIterator = resultDataArrayNode.elements();
+        JsonNode element = null;
+
+        while (elementIterator.hasNext()) {
+          element = elementIterator.next();
+
+          final String resourceType = NodeUtils.getNodeFieldAsText(element, "resource-type");
+          final String resourceLink = NodeUtils.getNodeFieldAsText(element, "resource-link");
+
+          OxmEntityDescriptor descriptor = null;
+
+          if (resourceType != null && resourceLink != null) {
+
+            descriptor = oxmModelLoader.getEntityDescriptor(resourceType);
+
+            if (descriptor == null) {
+              LOG.error(AaiUiMsgs.MISSING_ENTITY_DESCRIPTOR, resourceType);
+              // go to next element in iterator
+              continue;
+            }
+
+            selflinks.add(new SelfLinkDescriptor(resourceLink, SynchronizerConfiguration.NODES_ONLY_MODIFIER, resourceType));
+            
+
+          }
+        }
+      }
+    }
+
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see org.openecomp.sparky.synchronizer.IndexSynchronizer#doSync()
+   */
+  @Override
+  public OperationState doSync() {
+    String txnID = NodeUtils.getRandomTxnId();
+    MdcContext.initialize(txnID, "AggregationSynchronizer", "", "Sync", "");
+    
+    return collectAllTheWork();
+  }
+
+  @Override
+  public SynchronizerState getState() {
+
+    if (!isSyncDone()) {
+      return SynchronizerState.PERFORMING_SYNCHRONIZATION;
+    }
+
+    return SynchronizerState.IDLE;
+
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see org.openecomp.sparky.synchronizer.IndexSynchronizer#getStatReport(boolean)
+   */
+  @Override
+  public String getStatReport(boolean showFinalReport) {
+    return getStatReport(System.currentTimeMillis() - this.syncStartedTimeStampInMs,
+        showFinalReport);
+  }
+
+  public String getEntityType() {
+    return entityType;
+  }
+
+  public void setEntityType(String entityType) {
+    this.entityType = entityType;
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see org.openecomp.sparky.synchronizer.IndexSynchronizer#shutdown()
+   */
+  @Override
+  public void shutdown() {
+    this.shutdownExecutors();
+  }
+
+  @Override
+  protected boolean isSyncDone() {
+
+    int totalWorkOnHand = aaiWorkOnHand.get() + esWorkOnHand.get();
+
+    if (LOG.isDebugEnabled()) {
+      LOG.debug(AaiUiMsgs.DEBUG_GENERIC, indexName + ", isSyncDone(), totalWorkOnHand = "
+          + totalWorkOnHand + " all work enumerated = " + allWorkEnumerated);
+    }
+
+    if (totalWorkOnHand > 0 || !allWorkEnumerated) {
+      return false;
+    }
+
+    this.syncInProgress = false;
+
+    return true;
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see org.openecomp.sparky.synchronizer.AbstractEntitySynchronizer#clearCache()
+   */
+  @Override
+  public void clearCache() {
+
+    if (syncInProgress) {
+      LOG.debug(AaiUiMsgs.DEBUG_GENERIC,
+          "Autosuggestion Entity Summarizer in progress, request to clear cache ignored");
+      return;
+    }
+
+    super.clearCache();
+    this.resetCounters();
+    if (entityCounters != null) {
+      entityCounters.clear();
+    }
+
+    allWorkEnumerated = false;
+
+  }
+
+}