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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.aggregatevnf.search;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.json.JsonObject;
import org.apache.camel.Exchange;
import org.apache.camel.component.restlet.RestletConstants;
import org.json.JSONArray;
import org.json.JSONObject;
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.dal.elasticsearch.SearchAdapter;
import org.onap.aai.sparky.dataintegrity.config.DiUiConstants;
import org.onap.aai.sparky.logging.AaiUiMsgs;
import org.onap.aai.sparky.search.filters.FilterQueryBuilder;
import org.onap.aai.sparky.search.filters.entity.SearchFilter;
import org.onap.aai.sparky.viewandinspect.config.TierSupportUiConstants;
import org.restlet.Request;
import org.restlet.Response;
import org.restlet.data.MediaType;
import org.restlet.data.Status;
public class AggregateSummaryProcessor {
private static final Logger LOG =
LoggerFactory.getInstance().getLogger(AggregateSummaryProcessor.class);
private static final String KEY_FILTERS = "filters";
private SearchAdapter search = null;
private String vnfAggregationIndexName;
private String elasticSearchIp;
private String elatsticSearchPort;
public AggregateSummaryProcessor() {
try {
if (search == null) {
search = new SearchAdapter();
}
} catch (Exception exc) {
LOG.error(AaiUiMsgs.ERROR_GENERIC,
"Failed to get elastic search configuration with error = " + exc.getMessage());
}
}
public void setVnfAggregationIndexName(String vnfAggregationIndexName) {
this.vnfAggregationIndexName = vnfAggregationIndexName;
}
public void setElasticSearchIp(String elasticSearchIp) {
this.elasticSearchIp = elasticSearchIp;
}
public void setElatsticSearchPort(String elatsticSearchPort) {
this.elatsticSearchPort = elatsticSearchPort;
}
public void getFilteredAggregation(Exchange exchange) {
Response response =
exchange.getIn().getHeader(RestletConstants.RESTLET_RESPONSE, Response.class);
Request request = exchange.getIn().getHeader(RestletConstants.RESTLET_REQUEST, Request.class);
/*
* Disables automatic Apache Camel Restlet component logging which prints out an undesirable log
* entry which includes client (e.g. browser) information
*/
request.setLoggable(false);
try {
String payload = exchange.getIn().getBody(String.class);
if (payload == null || payload.isEmpty()) {
LOG.error(AaiUiMsgs.SEARCH_SERVLET_ERROR, "Request Payload is empty");
/*
* Don't throw back an error, just return an empty set
*/
} else {
JSONObject parameters = new JSONObject(payload);
JSONArray requestFilters = null;
if (parameters.has(KEY_FILTERS)) {
requestFilters = parameters.getJSONArray(KEY_FILTERS);
} else {
JSONObject zeroResponsePayload = new JSONObject();
zeroResponsePayload.put("count", 0);
response.setStatus(Status.SUCCESS_OK);
response.setEntity(zeroResponsePayload.toString(), MediaType.APPLICATION_JSON);
exchange.getOut().setBody(response);
LOG.error(AaiUiMsgs.ERROR_FILTERS_NOT_FOUND);
return;
}
if (requestFilters != null && requestFilters.length() > 0) {
List<JSONObject> filtersToQuery = new ArrayList<JSONObject>();
for (int i = 0; i < requestFilters.length(); i++) {
JSONObject filterEntry = requestFilters.getJSONObject(i);
filtersToQuery.add(filterEntry);
}
String jsonResponsePayload = getVnfFilterAggregations(filtersToQuery);
response.setStatus(Status.SUCCESS_OK);
response.setEntity(jsonResponsePayload, MediaType.APPLICATION_JSON);
exchange.getOut().setBody(response);
} else {
String emptyResponse = getEmptyAggResponse();
response.setStatus(Status.SUCCESS_OK);
response.setEntity(emptyResponse, MediaType.APPLICATION_JSON);
exchange.getOut().setBody(response);
LOG.error(AaiUiMsgs.ERROR_FILTERS_NOT_FOUND);
}
}
} catch (Exception exc) {
LOG.error(AaiUiMsgs.ERROR_GENERIC,
"FilterProcessor failed to get filter list due to error = " + exc.getMessage());
}
}
private String getEmptyAggResponse() {
JSONObject aggPayload = new JSONObject();
aggPayload.put("totalChartHits", 0);
aggPayload.put("buckets", new JSONArray());
JSONObject payload = new JSONObject();
payload.append("groupby_aggregation", aggPayload);
return payload.toString();
}
private static final String FILTER_ID_KEY = "filterId";
private static final String FILTER_VALUE_KEY = "filterValue";
private static final int DEFAULT_SHOULD_MATCH_SCORE = 1;
private static final String VNF_FILTER_AGGREGATION = "vnfFilterAggregation";
private String getVnfFilterAggregations(List<JSONObject> filtersToQuery) throws IOException {
List<SearchFilter> searchFilters = new ArrayList<SearchFilter>();
for (JSONObject filterEntry : filtersToQuery) {
String filterId = filterEntry.getString(FILTER_ID_KEY);
if (filterId != null) {
SearchFilter filter = new SearchFilter();
filter.setFilterId(filterId);
if (filterEntry.has(FILTER_VALUE_KEY)) {
String filterValue = filterEntry.getString(FILTER_VALUE_KEY);
filter.addValue(filterValue);
}
searchFilters.add(filter);
}
}
// Create query for summary by entity type
JsonObject vnfSearch =
FilterQueryBuilder.createCombinedBoolAndAggQuery(searchFilters, DEFAULT_SHOULD_MATCH_SCORE);
// Parse response for summary by entity type query
OperationResult opResult =
search.doPost(getFullUrl(vnfAggregationIndexName, TierSupportUiConstants.ES_SEARCH_API),
vnfSearch.toString(), DiUiConstants.APP_JSON);
return buildAggregateVnfResponseJson(opResult.getResult());
}
/**
* Get Full URL for search using elastic search configuration.
*
* @param api the api
* @return the full url
*/
private String getFullUrl(String indexName, String api) {
final String host = elasticSearchIp;
final String port = elatsticSearchPort;
return String.format("http://%s:%s/%s/%s", host, port, indexName, api);
}
private String buildAggregateVnfResponseJson(String responseJsonStr) {
JSONObject finalOutputToFe = new JSONObject();
JSONObject responseJson = new JSONObject(responseJsonStr);
JSONObject hits = responseJson.getJSONObject("hits");
int totalHits = hits.getInt("total");
finalOutputToFe.put("total", totalHits);
JSONObject aggregations = responseJson.getJSONObject("aggregations");
String[] aggKeys = JSONObject.getNames(aggregations);
JSONObject aggregationsList = new JSONObject();
for (String aggName : aggKeys) {
JSONObject aggregation = aggregations.getJSONObject(aggName);
JSONArray buckets = aggregation.getJSONArray("buckets");
aggregationsList.put(aggName, buckets);
}
finalOutputToFe.put("aggregations", aggregationsList);
return finalOutputToFe.toString();
}
}
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