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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017-2018 Amdocs
* Copyright © 2019 IBM
* ================================================================================
* 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=========================================================
*/
package org.onap.aai.sparky.aggregatevnf.search;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
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.common.search.CommonSearchSuggestion;
import org.onap.aai.sparky.logging.AaiUiMsgs;
import org.onap.aai.sparky.search.SearchServiceAdapter;
import org.onap.aai.sparky.search.api.SearchProvider;
import org.onap.aai.sparky.search.entity.QuerySearchEntity;
import org.onap.aai.sparky.search.entity.SearchSuggestion;
import org.onap.aai.sparky.search.filters.entity.UiFilterValueEntity;
import org.onap.aai.sparky.util.NodeUtils;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
public class AggregateVnfSearchProvider implements SearchProvider {
private static final Logger LOG =
LoggerFactory.getInstance().getLogger(AggregateVnfSearchProvider.class);
private SearchServiceAdapter searchServiceAdapter = null;
private String autoSuggestIndexName;
private String vnfSearchSuggestionRoute;
private static final String AUTO_SUGGEST_TEMPLATE = "{ " + "\"results-size\": %d,"
+ "\"suggest-text\": \"%s\"," + "\"suggest-field\": \"%s\"" + "}";
private static final String KEY_SEARCH_RESULT = "searchResult";
private static final String KEY_HITS = "hits";
private static final String KEY_DOCUMENT = "document";
private static final String KEY_CONTENT = "content";
private static final String KEY_TEXT = "text";
private static final String KEY_FILTER_LIST = "filterList";
public AggregateVnfSearchProvider(SearchServiceAdapter searchServiceAdapter,
String autoSuggestIndexName, String vnfSearchSuggestionRoute) {
this.searchServiceAdapter = searchServiceAdapter;
this.autoSuggestIndexName = autoSuggestIndexName;
this.vnfSearchSuggestionRoute = vnfSearchSuggestionRoute;
}
public void setAutoSuggestIndexName(String autoSuggestIndexName) {
this.autoSuggestIndexName = autoSuggestIndexName;
}
@Override
public List<SearchSuggestion> search(QuerySearchEntity queryRequest) {
List<SearchSuggestion> returnList = new ArrayList<>();
try {
final String fullUrlStr =
searchServiceAdapter.buildSuggestServiceQueryUrl(autoSuggestIndexName);
String postBody =
String.format(AUTO_SUGGEST_TEMPLATE, Integer.parseInt(queryRequest.getMaxResults()),
queryRequest.getQueryStr(), "entity_suggest");
OperationResult opResult =
searchServiceAdapter.doPost(fullUrlStr, postBody);
if (opResult.getResultCode() == 200) {
returnList = generateSuggestionsForSearchResponse(opResult.getResult());
} else {
LOG.error(AaiUiMsgs.ERROR_PARSING_JSON_PAYLOAD_VERBOSE, opResult.getResult());
return returnList;
}
} catch (Exception exc) {
LOG.error(AaiUiMsgs.ERROR_GENERIC, "Search failed due to error = " + exc.getMessage());
}
return returnList;
}
private List<SearchSuggestion> generateSuggestionsForSearchResponse(String operationResult) {
if (operationResult == null || operationResult.length() == 0) {
return null;
}
ObjectMapper mapper = new ObjectMapper();
List<SearchSuggestion> suggestionEntityList = new ArrayList<>();
try {
JsonNode 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();
while (nodeIterator.hasNext()) {
JsonNode entityNode = nodeIterator.next();
if(entityNode != null) {
String responseText = getValueFromNode(entityNode, KEY_TEXT);
CommonSearchSuggestion responseSuggestion = createCommonSearchSuggestion(mapper, entityNode, responseText);
suggestionEntityList.add(responseSuggestion);
}
}
}
} catch (IOException exc) {
LOG.warn(AaiUiMsgs.SEARCH_RESPONSE_BUILDING_EXCEPTION, exc.getLocalizedMessage());
}
return suggestionEntityList;
}
private CommonSearchSuggestion createCommonSearchSuggestion(ObjectMapper mapper, JsonNode entityNode, String responseText) throws IOException {
// do the point transformation as we build the response?
CommonSearchSuggestion responseSuggestion = new CommonSearchSuggestion();
responseSuggestion.setRoute(vnfSearchSuggestionRoute);
responseSuggestion.setText(responseText);
responseSuggestion.setHashId(NodeUtils.generateUniqueShaDigest(responseText));
JsonNode keyDocument = entityNode.get(KEY_DOCUMENT);
JsonNode sourceNode = keyDocument.get(KEY_CONTENT);
if (sourceNode.has(KEY_FILTER_LIST)) {
ArrayNode filtersArray = (ArrayNode) sourceNode.get(KEY_FILTER_LIST);
for (int i = 0; i < filtersArray.size(); i++) {
String filterValueString = filtersArray.get(i).toString();
UiFilterValueEntity filterValue =
mapper.readValue(filterValueString, UiFilterValueEntity.class);
responseSuggestion.getFilterValues().add(filterValue);
}
}
return responseSuggestion;
}
private String getValueFromNode(JsonNode node, String fieldName) {
if (fieldName == null) {
return null;
}
JsonNode valueNode = node.get(fieldName);
if (valueNode != null) {
return valueNode.asText();
}
return null;
}
}
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