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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 org.onap.aai.sa.searchdbabstraction.elasticsearch.dao.ElasticSearchHttpController;
import org.onap.aai.sa.searchdbabstraction.logging.SearchDbMsgs;
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.rest.AnalyzerSchema;
import java.util.concurrent.atomic.AtomicBoolean;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.core.Context;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
//@Path("/analyzers")
@RestController
@RequestMapping("/services/search-db-service/v1/analyzers")
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());
public AnalyzerApi( @Qualifier("searchServiceApi") SearchServiceApi searchService) {
this.searchService = searchService;
}
@GET
public ResponseEntity<String> processGet(@Context HttpServletRequest request,
@Context HttpHeaders headers,
ApiUtils apiUtils) {
HttpStatus responseCode = HttpStatus.INTERNAL_SERVER_ERROR;
String responseString = "Undefined error";
// 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, "Authentication failure.");
return ResponseEntity.status(HttpStatus.FORBIDDEN).contentType ( MediaType.APPLICATION_JSON ).body("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("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 response = ResponseEntity.status(responseCode).contentType ( MediaType.APPLICATION_JSON ).body(responseString);
// Generate our audit log.
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() : "Unknown",
(request != null) ? request.getRequestURL ().toString () : "Unknown",
(request != null) ? request.getRemoteHost () : "Unknown",
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();
}
}
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