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/**
* ============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.inventory.servlet;
import org.openecomp.cl.mdc.MdcContext;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.IOException;
import java.io.PrintWriter;
import java.nio.ByteBuffer;
import java.security.SecureRandom;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.openecomp.cl.api.Logger;
import org.openecomp.cl.eelf.LoggerFactory;
import org.openecomp.sparky.logging.AaiUiMsgs;
import org.json.JSONArray;
import org.json.JSONObject;
import org.openecomp.sparky.dal.elasticsearch.SearchAdapter;
import org.openecomp.sparky.dal.elasticsearch.config.ElasticSearchConfig;
import org.openecomp.sparky.dal.rest.OperationResult;
import org.openecomp.sparky.dal.rest.RestClientBuilder;
import org.openecomp.sparky.util.NodeUtils;
import org.openecomp.sparky.util.ServletUtils;
/**
* The Class GeoVisualizationServlet.
*/
public class GeoVisualizationServlet extends HttpServlet {
private static final Logger LOG =
LoggerFactory.getInstance().getLogger(GeoVisualizationServlet.class);
private static final long serialVersionUID = 1L;
private SearchAdapter search = null;
private ElasticSearchConfig elasticConfig = null;
private ObjectMapper mapper;
private static final String SEARCH_STRING = "_search";
private static final String SEARCH_PARAMETER =
"?filter_path=hits.hits._source&_source=location&size=5000&q=entityType:";
/**
* Instantiates a new geo visualization servlet.
*
* @throws ServletException the servlet exception
*/
public GeoVisualizationServlet() throws ServletException {
init();
}
/* (non-Javadoc)
* @see javax.servlet.GenericServlet#init()
*/
@Override
public void init() throws ServletException {
super.init();
try {
if (elasticConfig == null) {
elasticConfig = ElasticSearchConfig.getConfig();
}
if (search == null) {
search = new SearchAdapter();
}
this.mapper = new ObjectMapper();
} catch (Exception exc) {
new ServletException(
"Caught an exception while getting an instance of servlet configuration.", exc);
}
}
public void setSearch(SearchAdapter search) {
this.search = search;
}
public void setElasticConfig(ElasticSearchConfig elasticConfig) {
this.elasticConfig = elasticConfig;
}
/* (non-Javadoc)
* @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String txnID = request.getHeader("X-TransactionId");
if (txnID == null){
txnID = NodeUtils.getRandomTxnId();
}
String partnerName = request.getHeader("X-FromAppId");
if ( partnerName == null)
partnerName = "Browser";
MdcContext.initialize(txnID, "AAI-UI", "", partnerName,
request.getRemoteAddr());
OperationResult operationResult = null;
try {
operationResult = getGeoVisualizationResults(response, request.getParameter("entity"));
} catch (Exception exc) {
LOG.error(AaiUiMsgs.ERROR_PROCESSING_REQUEST, exc);
}
}
/* (non-Javadoc)
* @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException {
}
/**
* Gets the geo visualization results.
*
* @param response the response
* @param entityType the entity type
* @return the geo visualization results
* @throws Exception the exception
*/
protected OperationResult getGeoVisualizationResults(HttpServletResponse response,
String entityType) throws Exception {
OperationResult operationResult = new OperationResult();
String parameters = SEARCH_PARAMETER + entityType;
String requestString = String.format("/%s/%s/%s", elasticConfig.getTopographicalSearchIndex(),
SEARCH_STRING, parameters);
try {
final String fullUrlStr = ServletUtils.getFullUrl(elasticConfig, requestString);
OperationResult opResult = ServletUtils.executeGetQuery(LOG, search, response, fullUrlStr);
JSONObject finalOutputJson = formatOutput(opResult.getResult());
if (finalOutputJson != null) {
response.setContentType("application/json");
PrintWriter out = response.getWriter();
out.println(finalOutputJson);
out.close();
}
} catch (JsonProcessingException exc) {
ServletUtils.handleSearchServletErrors(LOG, "Unable to map JSONpayload", exc, response);
}
return operationResult;
}
/**
* Format output.
*
* @param results the results
* @return the JSON object
*/
private JSONObject formatOutput(String results) {
JsonNode resultNode = null;
JSONObject finalResult = new JSONObject();
JSONArray entitiesArr = new JSONArray();
try {
resultNode = mapper.readTree(results);
final JsonNode hitsNode = resultNode.get("hits").get("hits");
if (hitsNode.isArray()) {
for (final JsonNode arrayNode : hitsNode) {
JsonNode sourceNode = arrayNode.get("_source");
if (sourceNode.get("location") != null) {
JsonNode locationNode = sourceNode.get("location");
if (NodeUtils.isNumeric(locationNode.get("lon").asText())
&& NodeUtils.isNumeric(locationNode.get("lat").asText())) {
JSONObject location = new JSONObject();
location.put("longitude", locationNode.get("lon").asText());
location.put("latitude", locationNode.get("lat").asText());
entitiesArr.put(location);
}
}
}
}
finalResult.put("plotPoints", entitiesArr);
} catch (IOException exc) {
LOG.warn(AaiUiMsgs.ERROR_BUILDING_SEARCH_RESPONSE, exc.getLocalizedMessage());
}
return finalResult;
}
}
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