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+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017-2018 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=========================================================
+ */
+package org.onap.aai.sa.rest;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+import javax.servlet.http.HttpServletRequest;
+import org.onap.aai.cl.api.LogFields;
+import org.onap.aai.cl.api.LogLine;
+import org.onap.aai.cl.api.Logger;
+import org.onap.aai.cl.eelf.LoggerFactory;
+import org.onap.aai.sa.searchdbabstraction.elasticsearch.dao.ElasticSearchHttpController;
+import org.onap.aai.sa.searchdbabstraction.logging.SearchDbMsgs;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.stereotype.Component;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+
+@Component
+@EnableWebSecurity
+@RestController
+@RequestMapping("/services/search-data-service/v1/analyzers/search")
+public class AnalyzerApi {
+
+ private SearchServiceApi searchService = null;
+
+ // Set up the loggers.
+ private static Logger logger = LoggerFactory.getInstance().getLogger(IndexApi.class.getName());
+ private static Logger auditLogger = LoggerFactory.getInstance().getAuditLogger(IndexApi.class.getName());
+
+ private static final String MSG_AUTHENTICATION_FAILURE = "Authentication failure.";
+
+ public AnalyzerApi(@Qualifier("searchServiceApi") SearchServiceApi searchService) {
+ this.searchService = searchService;
+ }
+
+ @RequestMapping(method = RequestMethod.GET, consumes = {"application/json"}, produces = {"application/json"})
+ public ResponseEntity<String> processGet(HttpServletRequest request, @RequestHeader HttpHeaders headers,
+ ApiUtils apiUtils) {
+
+ HttpStatus responseCode = HttpStatus.INTERNAL_SERVER_ERROR;
+ String responseString;
+
+ // Initialize the MDC Context for logging purposes.
+ ApiUtils.initMdcContext(request, headers);
+
+ // Validate that the request is correctly authenticated before going
+ // any further.
+ try {
+
+ if (!searchService.validateRequest(headers, request, ApiUtils.Action.GET,
+ ApiUtils.SEARCH_AUTH_POLICY_NAME)) {
+ logger.warn(SearchDbMsgs.GET_ANALYZERS_FAILURE, MSG_AUTHENTICATION_FAILURE);
+ return ResponseEntity.status(HttpStatus.FORBIDDEN).contentType(MediaType.APPLICATION_JSON)
+ .body(MSG_AUTHENTICATION_FAILURE);
+ }
+
+ } catch (Exception e) {
+
+ logger.warn(SearchDbMsgs.GET_ANALYZERS_FAILURE,
+ "Unexpected authentication failure - cause: " + e.getMessage());
+ return ResponseEntity.status(HttpStatus.FORBIDDEN).contentType(MediaType.APPLICATION_JSON)
+ .body(MSG_AUTHENTICATION_FAILURE);
+ }
+
+
+ // Now, build the list of analyzers.
+ try {
+ responseString = buildAnalyzerList(ElasticSearchHttpController.getInstance().getAnalysisConfig());
+ responseCode = HttpStatus.OK;
+ } catch (Exception e) {
+ logger.warn(SearchDbMsgs.GET_ANALYZERS_FAILURE,
+ "Unexpected failure retrieving analysis configuration - cause: " + e.getMessage());
+ responseString = "Failed to retrieve analysis configuration. Cause: " + e.getMessage();
+ }
+
+ // Build the HTTP response.
+ ResponseEntity<String> response =
+ ResponseEntity.status(responseCode).contentType(MediaType.APPLICATION_JSON).body(responseString);
+
+ // Generate our audit log.
+ String unknownLogField = "Unknown";
+ auditLogger.info(SearchDbMsgs.PROCESS_REST_REQUEST,
+ new LogFields().setField(LogLine.DefinedFields.RESPONSE_CODE, responseCode.value())
+ .setField(LogLine.DefinedFields.RESPONSE_DESCRIPTION, responseCode.value()),
+ (request != null) ? request.getMethod() : unknownLogField,
+ (request != null) ? request.getRequestURL().toString() : unknownLogField,
+ (request != null) ? request.getRemoteHost() : unknownLogField,
+ Integer.toString(response.getStatusCodeValue()));
+
+ // Clear the MDC context so that no other transaction inadvertently
+ // uses our transaction id.
+ ApiUtils.clearMdcContext();
+
+ return response;
+ }
+
+ /**
+ * This method takes a list of analyzer objects and generates a simple json structure to enumerate them.
+ *
+ * <p>
+ * Note, this includes only the aspects of the analyzer object that we want to make public to an external client.
+ *
+ * @param analysisConfig - The analysis configuration object to extract the analyzers from.
+ * @return - A json string enumerating the defined analyzers.
+ */
+ private String buildAnalyzerList(AnalysisConfiguration analysisConfig) {
+
+ StringBuilder sb = new StringBuilder();
+
+ sb.append("{");
+ AtomicBoolean firstAnalyzer = new AtomicBoolean(true);
+ for (AnalyzerSchema analyzer : analysisConfig.getAnalyzers()) {
+
+ if (!firstAnalyzer.compareAndSet(true, false)) {
+ sb.append(", ");
+ }
+
+ sb.append("{");
+ sb.append("\"name\": \"").append(analyzer.getName()).append("\", ");
+ sb.append("\"description\": \"").append(analyzer.getDescription()).append("\", ");
+ sb.append("\"behaviours\": [");
+ AtomicBoolean firstBehaviour = new AtomicBoolean(true);
+ for (String behaviour : analyzer.getBehaviours()) {
+ if (!firstBehaviour.compareAndSet(true, false)) {
+ sb.append(", ");
+ }
+ sb.append("\"").append(behaviour).append("\"");
+ }
+ sb.append("]");
+ sb.append("}");
+ }
+ sb.append("}");
+
+ return sb.toString();
+ }
+}