1 files changed, 809 insertions, 0 deletions

diff --git a/src/main/java/org/openecomp/sparky/viewandinspect/services/SearchServiceWrapper.java b/src/main/java/org/openecomp/sparky/viewandinspect/services/SearchServiceWrapper.java
new file mode 100644
index 0000000..41f0eff
--- /dev/null
+++ b/src/main/java/org/openecomp/sparky/viewandinspect/services/SearchServiceWrapper.java
@@ -0,0 +1,809 @@
+/**
+ * ============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.viewandinspect.services;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.openecomp.cl.api.Logger;
+import org.openecomp.cl.eelf.LoggerFactory;
+import org.openecomp.sparky.config.oxm.OxmEntityDescriptor;
+import org.openecomp.sparky.config.oxm.OxmModelLoader;
+import org.openecomp.sparky.dal.elasticsearch.HashQueryResponse;
+import org.openecomp.sparky.dal.elasticsearch.SearchAdapter;
+import org.openecomp.sparky.dal.rest.OperationResult;
+import org.openecomp.sparky.dal.sas.config.SearchServiceConfig;
+import org.openecomp.sparky.logging.AaiUiMsgs;
+import org.openecomp.sparky.search.VnfSearchService;
+import org.openecomp.sparky.search.config.SuggestionConfig;
+import org.openecomp.sparky.suggestivesearch.SuggestionEntity;
+import org.openecomp.sparky.util.NodeUtils;
+import org.openecomp.sparky.viewandinspect.entity.QuerySearchEntity;
+import org.openecomp.sparky.viewandinspect.entity.SearchResponse;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+
+/**
+ * The Class SearchServlet.
+ */
+
+public class SearchServiceWrapper {
+
+  private static final long serialVersionUID = 1L;
+
+  private static final Logger LOG = LoggerFactory.getInstance().getLogger(SearchServiceWrapper.class);
+
+  private SearchServiceConfig sasConfig = null;
+  private SuggestionConfig suggestionConfig = null;
+  private SearchAdapter search = null;
+  private ObjectMapper mapper;
+  private OxmModelLoader oxmModelLoader;
+  private VnfSearchService vnfSearch = null;
+
+  private static final String SEARCH_STRING = "search";
+  private static final String COUNT_STRING = "count";
+  private static final String QUERY_SEARCH = SEARCH_STRING + "/querysearch";
+  private static final String SUMMARY_BY_ENTITY_TYPE_API = SEARCH_STRING + "/summarybyentitytype";
+  private static final String SUMMARY_BY_ENTITY_TYPE_COUNT_API =
+      SUMMARY_BY_ENTITY_TYPE_API + "/" + COUNT_STRING;
+
+  private static final String VALUE_ANYKEY = "anyKey";
+  private static final String VALUE_QUERY = "query";
+  
+  private static final String KEY_HASH_ID = "hashId";
+  private static final String KEY_GROUP_BY = "groupby";  
+  private static final String KEY_SEARCH_RESULT = "searchResult";
+  private static final String KEY_HITS = "hits";
+  private static final String KEY_PAYLOAD = "payload";
+  private static final String KEY_DOCUMENT = "document";
+  private static final String KEY_CONTENT = "content";
+  private static final String KEY_SEARCH_TAG_IDS = "searchTagIDs";
+  private static final String KEY_SEARCH_TAGS = "searchTags";
+  private static final String KEY_LINK = "link";
+  private static final String KEY_ENTITY_TYPE = "entityType";
+  
+  private static final String VI_SUGGESTION_ROUTE = "viewInspect"; // TODO -> Read route from
+                                                                   // suggestive-search.properties
+                                                                   // instead of hard coding
+  
+  private static final String VIUI_SEARCH_TEMPLATE =
+      "{ " + "\"results-start\": 0," + "\"results-size\": %d," + "\"queries\": [{" + "\"must\": {"
+          + "\"match\": {" + "\"field\": \"entityType searchTags crossEntityReferenceValues\","
+          + "\"value\": \"%s\"," + "\"operator\": \"and\", "
+          + "\"analyzer\": \"whitespace_analyzer\"" + "}" + "}" + "}]" + "}";  
+  
+  /**
+   * Instantiates a new search service wrapper
+   */
+  public SearchServiceWrapper() {
+    this.mapper = new ObjectMapper();
+    vnfSearch = new VnfSearchService();
+    
+    try {
+      if (sasConfig == null) {
+        sasConfig = SearchServiceConfig.getConfig();
+      }
+
+      if (suggestionConfig == null) {
+        suggestionConfig = SuggestionConfig.getConfig();
+      }
+
+      if (search == null) {
+        search = new SearchAdapter();
+      }
+
+      if (oxmModelLoader == null) {
+        oxmModelLoader = OxmModelLoader.getInstance();
+
+        if (OxmModelLoader.getInstance().getSearchableEntityDescriptors().isEmpty()) {
+          LOG.error(AaiUiMsgs.ENTITY_NOT_FOUND_IN_OXM, "searchable entity");
+        }
+      } 
+     } catch (Exception exc) {
+      new ServletException(
+          "Caught an exception while getting an instance of servlet configuration from SearchServlet.", exc);
+    }
+  }
+
+  public void doGet(HttpServletRequest request, HttpServletResponse response)
+      throws ServletException, IOException {
+    doPost(request, response);
+  }
+
+  public void setSasConfig(SearchServiceConfig sasConfig) {
+    this.sasConfig = sasConfig;
+  }
+
+  public SearchServiceConfig getSasConfig() {
+    return sasConfig;
+  }
+
+  public void setSuggestionConfig(SuggestionConfig suggestionConfig) {
+    this.suggestionConfig = suggestionConfig;
+  }
+
+  public void setSearch(SearchAdapter search) {
+    this.search = search;
+  }
+
+  public SuggestionConfig getSuggestionConfig() {
+    return suggestionConfig;
+  }
+
+  public SearchAdapter getSearch() {
+    return search;
+  }
+
+  public void setOxmModelLoader(OxmModelLoader oxmModelLoader) {
+    this.oxmModelLoader = oxmModelLoader;
+  }
+
+  public OxmModelLoader getOxmModelLoader() {
+    return oxmModelLoader;
+  }
+
+  public VnfSearchService getVnfSearch() {
+    return vnfSearch;
+  }
+
+  public void setVnfSearch(VnfSearchService vnfSearch) {
+    this.vnfSearch = vnfSearch;
+  }
+
+  /**
+   * Get Full URL for search
+   *
+   * @param api the api
+   * @param indexName
+   * @return the full url
+   */
+  private String getSasFullUrl(String indexName, String type, String ipAddress, String port,
+      String version) {
+
+    return String.format("https://%s:%s/services/search-data-service/%s/search/indexes/%s/%s",
+        ipAddress, port, version, indexName, type);
+  }
+
+  /**
+   * Handle search service do query.
+   *
+   * @param app the app
+   * @param request the request
+   * @param response the response
+   * @throws Exception the exception
+   */
+
+  protected JSONObject getRequestParamsFromHeader(HttpServletRequest request) {
+    StringBuffer br = new StringBuffer();
+    String line = null;
+    try {
+      BufferedReader reader = request.getReader();
+      while ((line = reader.readLine()) != null) {
+        br.append(line);
+      }
+    } catch (Exception exc) {
+      LOG.error(AaiUiMsgs.ERROR_READING_HTTP_REQ_PARAMS);
+    }
+
+    String output = br.toString();
+
+    return new JSONObject(output);
+  }
+
+  protected void handleSummaryByEntityTypeCount(HttpServletRequest request,
+      HttpServletResponse response) throws Exception {
+    JSONObject parameters = getRequestParamsFromHeader(request);
+    String hashId = null;
+    if (parameters.has(KEY_HASH_ID)){
+      hashId = parameters.get(KEY_HASH_ID).toString();
+    } else {
+      vnfSearch.setZeroCountResponse(response);
+      LOG.error(AaiUiMsgs.ERROR_HASH_NOT_FOUND);
+      return;
+    }
+    HashQueryResponse hashQueryResponse = getResponseForQueryByHash(hashId, response);
+    Map<String, String> hashQueryResponsePayloadParams = new HashMap<String, String>();
+    if (hashQueryResponse.getJsonPayload() != null) {
+      hashQueryResponsePayloadParams = getPayloadParams(hashQueryResponse.getJsonPayload());
+      vnfSearch.getEntityCountResults(response, hashQueryResponsePayloadParams);
+    } else {
+      vnfSearch.setZeroCountResponse(response);
+      LOG.error(AaiUiMsgs.ERROR_INVALID_HASH, hashId);
+    }    
+  }
+  
+  protected Map<String, String> getPayloadParams(String parameters) {
+    Map<String, String> payloadParams = new HashMap<String, String>();
+    try {
+      JSONObject json = new JSONObject(parameters);
+      JSONObject payload = json.getJSONObject(KEY_PAYLOAD);
+      if (payload.length() > 0) {
+        for (String key : JSONObject.getNames(payload)) {
+          payloadParams.put(key, payload.getString(key));
+        }
+      }
+    } catch (JSONException exc) {
+      LOG.error(AaiUiMsgs.ERROR_PARSING_PARAMS, exc);
+    }
+    return payloadParams;
+  }
+
+  protected HashQueryResponse getResponseForQueryByHash(String hashId, HttpServletResponse response){
+    return vnfSearch.getJSONPayloadFromHash(hashId);
+  }
+
+  protected void handleSummaryByEntityType(HttpServletRequest request, HttpServletResponse response)
+      throws Exception {
+    JSONObject parameters = getRequestParamsFromHeader(request);
+    String hashId = null;
+    if (parameters.has(KEY_HASH_ID)){
+      hashId = parameters.get(KEY_HASH_ID).toString();
+    } else {
+      vnfSearch.setZeroCountResponse(response);
+      LOG.error(AaiUiMsgs.ERROR_HASH_NOT_FOUND);
+      return;
+    }
+    HashQueryResponse hashQueryResponse = getResponseForQueryByHash(hashId, response);
+    Map<String, String> hashQueryResponsePayloadParams = new HashMap<String, String>();
+    if (hashQueryResponse.getJsonPayload() != null) {
+      hashQueryResponsePayloadParams = getPayloadParams(hashQueryResponse.getJsonPayload());
+      if (parameters.has(KEY_GROUP_BY)){
+        String groupByKey = parameters.getString(KEY_GROUP_BY);
+        vnfSearch.getSummaryByEntityType(response, hashQueryResponsePayloadParams, groupByKey);
+      }
+    } else {
+      LOG.error(AaiUiMsgs.ERROR_INVALID_HASH, hashId);
+      vnfSearch.setEmptyAggResponse(response);
+    }  
+  }
+
+  /**
+   * Gets the value from node.
+   *
+   * @param node the node
+   * @param fieldName the field name
+   * @return the value from node
+   */
+  private String getValueFromNode(JsonNode node, String fieldName) {
+
+    if (node == null || fieldName == null) {
+      return null;
+    }
+
+    JsonNode valueNode = node.get(fieldName);
+
+    if (valueNode != null) {
+      return valueNode.asText();
+    }
+
+    return null;
+
+  }
+
+  /**
+   * Builds the search response.
+   *
+   * @param operationResult the operation result
+   * @param queryStr the query str
+   * @return TODO
+   * @return the search response
+   */
+  private List<SuggestionEntity> generateSuggestionsForSearchResponse(String operationResult,
+      String queryStr) {
+
+
+    if (operationResult == null || operationResult.length() == 0) {
+      return null;
+    }
+
+    ObjectMapper mapper = new ObjectMapper();
+    JsonNode rootNode = null;
+    List<SuggestionEntity> suggestionEntityList = new ArrayList<SuggestionEntity>();
+    try {
+      rootNode = mapper.readTree(operationResult);
+
+      JsonNode hitsNode = rootNode.get(KEY_SEARCH_RESULT);
+
+
+      // Check if there are hits that are coming back
+      if (hitsNode.has(KEY_HITS)) {
+        ArrayNode hitsArray = (ArrayNode) hitsNode.get(KEY_HITS);
+
+        /*
+         * next we iterate over the values in the hit array elements
+         */
+
+        Iterator<JsonNode> nodeIterator = hitsArray.elements();
+        JsonNode entityNode = null;
+        SuggestionEntity suggestionEntity = null;
+        JsonNode sourceNode = null;
+        while (nodeIterator.hasNext()) {
+          entityNode = nodeIterator.next();
+          sourceNode = entityNode.get(KEY_DOCUMENT).get(KEY_CONTENT);
+
+          // do the point transformation as we build the response?
+          suggestionEntity = new SuggestionEntity();
+          suggestionEntity.setRoute(VI_SUGGESTION_ROUTE);
+
+          /*
+           * This is where we probably want to annotate the search tags because we also have access
+           * to the seachTagIds
+           */
+
+          String searchTagIds = getValueFromNode(sourceNode, KEY_SEARCH_TAG_IDS);
+          String searchTags = getValueFromNode(sourceNode, KEY_SEARCH_TAGS);
+          String link = getValueFromNode(sourceNode, KEY_LINK);
+          String entityType = getValueFromNode(sourceNode, KEY_ENTITY_TYPE);
+          if (link != null) {
+            suggestionEntity.setHashId(NodeUtils.generateUniqueShaDigest(link));
+          }
+
+          try {
+            suggestionEntity
+                .setText(annotateSearchTags(searchTags, searchTagIds, entityType, queryStr));
+          } catch (Exception exc) {
+            LOG.error(AaiUiMsgs.SEARCH_TAG_ANNOTATION_ERROR, searchTags.toString(),
+                exc.getLocalizedMessage());
+            // at least send back the un-annotated search tags
+            suggestionEntity.setText(searchTags);
+          }
+
+          if (searchTags != null) {
+            suggestionEntityList.add(suggestionEntity);
+          }
+
+        }
+      }
+    } catch (IOException exc) {
+      LOG.warn(AaiUiMsgs.SEARCH_RESPONSE_BUILDING_EXCEPTION, exc.getLocalizedMessage());
+    }
+    return suggestionEntityList;
+  }
+
+  /*
+   */
+
+  /**
+   * Query terms match search tag.
+   *
+   * @param queryTerms the query terms
+   * @param searchTag the search tag
+   * @return true, if successful @return.
+   */
+  private boolean queryTermsMatchSearchTag(String[] queryTerms, String searchTag) {
+
+    if (queryTerms == null || queryTerms.length == 0 || searchTag == null) {
+      return false;
+    }
+
+    for (String queryTerm : queryTerms) {
+      if (searchTag.toLowerCase().contains(queryTerm.toLowerCase())) {
+        return true;
+      }
+    }
+
+    return false;
+
+  }
+
+  /**
+   * The current format of an UI-dropdown-item is like: "search-terms  entityType  att1=attr1_val".
+   * Example, for pserver: search-terms pserver hostname=djmAG-72060,
+   * pserver-name2=example-pserver-name2-val-17254, pserver-id=example-pserver-id-val-17254,
+   * ipv4-oam-address=example-ipv4-oam-address-val-17254 SearchController.js parses the above
+   * format. So if you are modifying the parsing below, please update SearchController.js as well.
+   *
+   * @param searchTags the search tags
+   * @param searchTagIds the search tag ids
+   * @param entityType the entity type
+   * @param queryStr the query str
+   * @return the string
+   */
+
+  private String annotateSearchTags(String searchTags, String searchTagIds, String entityType,
+      String queryStr) {
+
+    if (searchTags == null || searchTagIds == null) {
+      String valueOfSearchTags = String.valueOf(searchTags);
+      String valueOfSearchTagIds = String.valueOf(searchTagIds);
+
+      LOG.error(AaiUiMsgs.SEARCH_TAG_ANNOTATION_ERROR, "See error",
+          "Search tags = " + valueOfSearchTags + " and Seach tag IDs = " + valueOfSearchTagIds);
+      return searchTags;
+    }
+
+    if (entityType == null) {
+      LOG.error(AaiUiMsgs.SEARCH_TAG_ANNOTATION_ERROR, searchTags.toString(), "EntityType is null");
+      return searchTags;
+    }
+
+    if (queryStr == null) {
+      LOG.error(AaiUiMsgs.SEARCH_TAG_ANNOTATION_ERROR, searchTags.toString(),
+          "Query string is null");
+      return searchTags;
+    }
+
+    /*
+     * The ElasticSearch analyzer has already applied the lowercase filter, so we don't have to
+     * covert them again
+     */
+    String[] searchTagsArray = searchTags.split(";");
+    String[] searchTagIdsArray = searchTagIds.split(";");
+
+    // specifically apply lower case to the the query terms to make matching
+    // simpler
+    String[] queryTerms = queryStr.toLowerCase().split(" ");
+
+    OxmEntityDescriptor desc = oxmModelLoader.getSearchableEntityDescriptors().get(entityType);
+
+    if (desc == null) {
+      LOG.error(AaiUiMsgs.ENTITY_NOT_FOUND_IN_OXM, entityType.toString());
+      return searchTags;
+    }
+
+    String primaryKeyName = NodeUtils.concatArray(desc.getPrimaryKeyAttributeName(), "/");
+    String primaryKeyValue = null;
+
+    /*
+     * For each used attribute, get the fieldName for the attribute index and transform the search
+     * tag into t1,t2,t3 => h1=t1, h2=t2, h3=t3;
+     */
+    StringBuilder searchTagsBuilder = new StringBuilder(128);
+    searchTagsBuilder.append(entityType);
+
+    String primaryKeyConjunctionValue = null;
+    boolean queryTermsMatchedSearchTags = false;
+
+    if (searchTagsArray.length == searchTagIdsArray.length) {
+      for (int i = 0; i < searchTagsArray.length; i++) {
+        String searchTagAttributeId = searchTagIdsArray[i];
+        String searchTagAttributeValue = searchTagsArray[i];
+
+        // Find the concat conjunction
+        Map<String, String> pairConjunctionList = suggestionConfig.getPairingList();
+
+        String suggConjunction = null;
+        if (pairConjunctionList.get(searchTagAttributeId) != null) {
+          suggConjunction = pairConjunctionList.get(searchTagAttributeId);
+        } else {
+          suggConjunction = suggestionConfig.getDefaultPairingValue();
+        }
+
+        if (primaryKeyName.equals(searchTagAttributeId)) {
+          primaryKeyValue = searchTagAttributeValue;
+          primaryKeyConjunctionValue = suggConjunction;
+        }
+
+        if (queryTermsMatchSearchTag(queryTerms, searchTagAttributeValue)) {
+          searchTagsBuilder.append(" " + suggConjunction + " " + searchTagAttributeValue);
+          queryTermsMatchedSearchTags = true;
+        }
+      }
+    } else {
+      String errorMessage = "Search tags length did not match search tag ID length for entity type " + entityType;
+      LOG.error(AaiUiMsgs.ENTITY_SYNC_SEARCH_TAG_ANNOTATION_FAILED, errorMessage);
+    }
+
+    /*
+     * if none of the user query terms matched the index entity search tags then we should still tag
+     * the matched entity with a conjunction set to at least it's entity primary key value to
+     * discriminate between the entities of the same type in the search results displayed in the UI
+     * search bar results
+     */
+
+    if (!queryTermsMatchedSearchTags) {
+
+      if (primaryKeyValue != null && primaryKeyConjunctionValue != null) {
+        searchTagsBuilder.append(" " + primaryKeyConjunctionValue + " " + primaryKeyValue);
+      } else {
+        LOG.error(AaiUiMsgs.SEARCH_TAG_ANNOTATION_ERROR, "See error",
+            "Could not annotate user query terms " + queryStr
+                + " from available entity search tags = " + searchTags);
+        return searchTags;
+      }
+
+    }
+
+    return searchTagsBuilder.toString();
+
+  }
+
+
+  /**
+   * @param queryStr - space separate query search terms
+   * @return - query string with stop-words removed
+   */
+  private String stripStopWordsFromQuery(String queryStr) {
+
+    if (queryStr == null) {
+      return queryStr;
+    }
+
+    Collection<String> stopWords = suggestionConfig.getStopWords();
+    ArrayList<String> queryTerms = new ArrayList<String>(Arrays.asList(queryStr.toLowerCase().split(" ")));
+
+    queryTerms.removeAll(stopWords);
+
+    return String.join(" ", queryTerms);
+  }
+
+  /*
+   * Expected query:
+   * 
+   * POST /search/viuiSearch/
+   * 
+   * { "maxResults" : "10", "searchStr" : "<search bar text>" }
+   */
+
+  /**
+   * Handle view and inspect search.
+   *
+   * @param request the request
+   * @param maxResults Max number of results to return
+   * @param response the response
+   * @return
+   * @throws IOException Signals that an I/O exception has occurred.
+   */
+  protected List<SuggestionEntity> performViewAndInspectQuerySearch(
+      QuerySearchEntity querySearchEntity, int maxResults) throws IOException {
+    List<SuggestionEntity> suggestionEntityList = new ArrayList<SuggestionEntity>();
+
+    /*
+     * Based on the configured stop words, we need to strip any matched stop-words ( case
+     * insensitively ) from the query string, before hitting elastic to prevent the words from being
+     * used against the elastic view-and-inspect index. Another alternative to this approach would
+     * be to define stop words on the elastic search index configuration for the
+     * entity-search-index, but but that may be more complicated / more risky than just a simple bug
+     * fix, but it's something we should think about for the future.
+     */
+
+    try {
+      final String queryStringWithoutStopWords =
+          stripStopWordsFromQuery(querySearchEntity.getQueryStr());
+
+      final String fullUrlStr = getSasFullUrl(sasConfig.getIndexName(), VALUE_QUERY,
+          sasConfig.getIpAddress(), sasConfig.getHttpPort(), sasConfig.getVersion());
+
+      String postBody =
+          String.format(VIUI_SEARCH_TEMPLATE, maxResults, queryStringWithoutStopWords);
+
+      OperationResult opResult = search.doPost(fullUrlStr, postBody, "application/json");
+      if (opResult.getResultCode() == 200) {
+        suggestionEntityList = generateSuggestionsForSearchResponse(opResult.getResult(),
+            querySearchEntity.getQueryStr());
+      }
+    } catch (Exception exc) {
+      LOG.error(AaiUiMsgs.SEARCH_SERVLET_ERROR,
+          "View and inspect query failed with error = " + exc.getMessage());
+    }
+    return suggestionEntityList;
+  }
+
+  protected List<SuggestionEntity> performVnfQuerySearch(QuerySearchEntity querySearchEntity,
+      int resultCountLimit) throws Exception {
+    return vnfSearch.getSuggestionsResults(querySearchEntity, resultCountLimit);
+  }
+
+  protected void handleQuerySearch(HttpServletRequest request, HttpServletResponse response)
+      throws IOException {
+    String payload = NodeUtils.getBody(request);
+    if (payload == null || payload.isEmpty()) {
+      handleSearchServletErrors("Unable to parse payload", null, response);
+    } else {
+      QuerySearchEntity querySearchEntity = mapper.readValue(payload, QuerySearchEntity.class);
+      int maxResultsPerSearch = Integer.valueOf(querySearchEntity.getMaxResults());
+      try {
+        SearchResponse searchResponse = new SearchResponse();
+        List<SuggestionEntity> viewAndInspectsuggestionEntityList =
+            new ArrayList<SuggestionEntity>();
+        List<SuggestionEntity> vnfSuggestionEntityList = new ArrayList<SuggestionEntity>();
+        long processTime = System.currentTimeMillis();
+        for (String searchService : suggestionConfig.getSearchIndexToSearchService().values()) {
+          if (searchService.equals(SearchServiceWrapper.class.getSimpleName())) {
+            viewAndInspectsuggestionEntityList =
+                performViewAndInspectQuerySearch(querySearchEntity, maxResultsPerSearch);
+          } else if (searchService.equals(VnfSearchService.class.getSimpleName())) {
+            vnfSuggestionEntityList = performVnfQuerySearch(querySearchEntity, maxResultsPerSearch);
+          }
+        }
+
+        int totalAdded = 0;
+        for (int i = 0; i < maxResultsPerSearch; i++) {
+          if (i < viewAndInspectsuggestionEntityList.size() && totalAdded < maxResultsPerSearch) {
+            searchResponse.addSuggestion(viewAndInspectsuggestionEntityList.get(i));
+            totalAdded++;
+          }
+          if (i < vnfSuggestionEntityList.size() && totalAdded < maxResultsPerSearch) {
+            searchResponse.addSuggestion(vnfSuggestionEntityList.get(i));
+            totalAdded++;
+          }
+          if (totalAdded >= maxResultsPerSearch) {
+            break;
+          }
+        }
+        searchResponse.addToTotalFound(totalAdded);
+        String searchResponseJson = NodeUtils.convertObjectToJson(searchResponse, true);
+
+        processTime = System.currentTimeMillis() - processTime;
+        searchResponse.setProcessingTimeInMs(processTime);
+        setServletResponse(response, searchResponseJson);
+      } catch (Exception exc) {
+        LOG.error(AaiUiMsgs.SEARCH_SERVLET_ERROR,
+            "Query search failed with error = " + exc.getMessage());
+      }
+    }
+  }
+
+  public void doPost(HttpServletRequest request, HttpServletResponse response)
+      throws ServletException, IOException {
+
+    String api = null;
+    try {
+      
+      // set default response
+      response.setStatus(200);
+
+      if (request.getRequestURI().contains(QUERY_SEARCH)) {
+        api = QUERY_SEARCH; 
+        handleQuerySearch(request, response);
+        return;
+      } else if (request.getRequestURI().contains(SUMMARY_BY_ENTITY_TYPE_COUNT_API)) {
+        api = SUMMARY_BY_ENTITY_TYPE_COUNT_API;
+        handleSummaryByEntityTypeCount(request, response);
+        return;
+      } else if (request.getRequestURI().contains(SUMMARY_BY_ENTITY_TYPE_API)) {
+        api = SUMMARY_BY_ENTITY_TYPE_API;
+        handleSummaryByEntityType(request, response);
+        return;
+      } else {
+
+        final String errorMessage = "Ignored request-uri = " + request.getRequestURI();
+        LOG.error(AaiUiMsgs.SEARCH_SERVLET_ERROR, errorMessage);
+        response.setStatus(404);
+        response.setContentType("application/json");
+        PrintWriter out = response.getWriter();
+        out.println(generateJsonErrorResponse(errorMessage));
+        out.close();
+        
+        
+      }
+    } catch (JSONException je){
+      handleSearchServletErrors("Caught an exception while parsing json in processing for " + api, je,
+          response);
+    } catch (Exception e1) {
+      handleSearchServletErrors("Caught an exception while communicating with elasticsearch", e1,
+          response);
+    }
+  }
+
+  /**
+   * Generate json error response.
+   *
+   * @param message the message
+   * @return the string
+   */
+  /*
+   * This is the manual approach, however we could also create an object container for the error
+   * then use the Jackson ObjectWrite to dump the object to json instead. If it gets any more
+   * complicated we could do that approach so we don't have to manually trip over the JSON
+   * formatting.
+   */
+  protected String generateJsonErrorResponse(String message) {
+    return String.format("{ \"errorMessage\" : %s }", message);
+  }
+
+  /**
+   * Handle search servlet errors.
+   *
+   * @param errorMsg the error msg
+   * @param exc the exc
+   * @param response the response
+   * @throws IOException Signals that an I/O exception has occurred.
+   */
+  public void handleSearchServletErrors(String errorMsg, Exception exc,
+      HttpServletResponse response) throws IOException {
+
+    String errorLogMsg =
+        (exc == null ? errorMsg : errorMsg + ". Error:" + exc.getLocalizedMessage());
+
+    LOG.error(AaiUiMsgs.SEARCH_SERVLET_ERROR, errorLogMsg);
+
+    response.setContentType("application/json");
+    PrintWriter out = response.getWriter();
+    out.println(generateJsonErrorResponse(errorMsg));
+    out.close();
+  }
+
+
+  /**
+   * Execute query.
+   *
+   * @param response the response
+   * @param requestUrl the request url
+   * @param requestJsonPayload the request json payload
+   * @throws Exception the exception
+   */
+  public void executeQuery(HttpServletResponse response, String requestUrl,
+      String requestJsonPayload) throws Exception {
+
+    OperationResult opResult = search.doPost(requestUrl, requestJsonPayload, "application/json");
+
+    if (opResult != null) {
+
+      response.setStatus(opResult.getResultCode());
+      String finalOutput = opResult.getResult();
+
+      // example: failed to populate drop-down items from formatOutputJson()
+      if (finalOutput != null) {
+        response.setContentType("application/json");
+        PrintWriter out = response.getWriter();
+        out.println(finalOutput);
+        out.close();
+      }
+
+    } else {
+      response.setStatus(500);
+    }
+
+  }
+
+  /**
+   * Sets the servlet response.
+   * 
+   * @param response the response
+   * @param postPayload the post payload
+   *
+   * @throws IOException Signals that an I/O exception has occurred.
+   */
+  private void setServletResponse(HttpServletResponse response, String postPayload)
+      throws IOException {
+
+    if (postPayload != null) {
+      response.setContentType("application/json");
+      PrintWriter out = response.getWriter();
+      out.println(postPayload);
+      out.close();
+    }
+  }
+  
+
+  
+}
\ No newline at end of file