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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.openecomp.sa.rest;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-import org.openecomp.cl.api.LogFields;
-import org.openecomp.cl.api.LogLine;
-import org.openecomp.cl.api.Logger;
-import org.openecomp.cl.eelf.LoggerFactory;
-import org.openecomp.sa.searchdbabstraction.elasticsearch.dao.DocumentStoreInterface;
-import org.openecomp.sa.searchdbabstraction.elasticsearch.exception.DocumentStoreOperationException;
-import org.openecomp.sa.searchdbabstraction.entity.OperationResult;
-import org.openecomp.sa.searchdbabstraction.logging.SearchDbMsgs;
-
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import javax.servlet.http.HttpServletRequest;
-import javax.ws.rs.core.HttpHeaders;
-import javax.ws.rs.core.Response;
-
-
-/**
- * This class encapsulates the REST end points associated with manipulating
- * indexes in the document store.
- */
-public class IndexApi {
-
- protected SearchServiceApi searchService = null;
-
- /**
- * Configuration for the custom analyzers that will be used for indexing.
- */
- protected AnalysisConfiguration analysisConfig;
-
- // 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 IndexApi(SearchServiceApi searchService) {
- this.searchService = searchService;
- init();
- }
-
-
- /**
- * Initializes the end point.
- *
- * @throws FileNotFoundException
- * @throws IOException
- * @throws DocumentStoreOperationException
- */
- public void init() {
-
- // Instantiate our analysis configuration object.
- analysisConfig = new AnalysisConfiguration();
- }
-
-
- /**
- * Processes client requests to create a new index and document type in the
- * document store.
- *
- * @param documentSchema - The contents of the request body which is expected
- * to be a JSON structure which corresponds to the
- * schema defined in document.schema.json
- * @param index - The name of the index to create.
- * @return - A Standard REST response
- */
- public Response processCreateIndex(String documentSchema,
- HttpServletRequest request,
- HttpHeaders headers,
- String index,
- DocumentStoreInterface documentStore) {
-
- int resultCode = 500;
- String resultString = "Unexpected 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.POST, ApiUtils.SEARCH_AUTH_POLICY_NAME)) {
- logger.warn(SearchDbMsgs.INDEX_CREATE_FAILURE, index, "Authentication failure.");
- return errorResponse(Response.Status.FORBIDDEN, "Authentication failure.", request);
- }
-
- } catch (Exception e) {
-
- logger.warn(SearchDbMsgs.INDEX_CREATE_FAILURE, index,
- "Unexpected authentication failure - cause: " + e.getMessage());
- return errorResponse(Response.Status.FORBIDDEN, "Authentication failure.", request);
- }
-
-
- // We expect a payload containing the document schema. Make sure
- // it is present.
- if (documentSchema == null) {
- logger.warn(SearchDbMsgs.INDEX_CREATE_FAILURE, index, "Missing document schema payload");
- return errorResponse(Response.Status.fromStatusCode(resultCode), "Missing payload", request);
- }
-
- try {
-
- // Marshal the supplied json string into a document schema object.
- ObjectMapper mapper = new ObjectMapper();
- DocumentSchema schema = mapper.readValue(documentSchema, DocumentSchema.class);
-
- // Now, ask the DAO to create the index.
- OperationResult result = documentStore.createIndex(index, schema);
-
- // Extract the result code and string from the OperationResult
- // object so that we can use them to generate a standard REST
- // response.
- // Note that we want to return a 201 result code on a successful
- // create, so if we get back a 200 from the document store,
- // translate that int a 201.
- resultCode = (result.getResultCode() == 200) ? 201 : result.getResultCode();
- resultString = (result.getFailureCause() == null)
- ? result.getResult() : result.getFailureCause();
-
- } catch (com.fasterxml.jackson.core.JsonParseException
- | com.fasterxml.jackson.databind.JsonMappingException e) {
-
- // We were unable to marshal the supplied json string into a valid
- // document schema, so return an appropriate error response.
- resultCode = javax.ws.rs.core.Response.Status.BAD_REQUEST.getStatusCode();
- resultString = "Malformed schema: " + e.getMessage();
-
- } catch (IOException e) {
-
- // We'll treat this is a general internal error.
- resultCode = javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR.getStatusCode();
- resultString = "IO Failure: " + e.getMessage();
- }
-
- Response response = Response.status(resultCode).entity(resultString).build();
-
- // Log the result.
- if ((response.getStatus() >= 200) && (response.getStatus() < 300)) {
- logger.info(SearchDbMsgs.CREATED_INDEX, index);
- } else {
- logger.warn(SearchDbMsgs.INDEX_CREATE_FAILURE, index, resultString);
- }
-
- // Generate our audit log.
- auditLogger.info(SearchDbMsgs.PROCESS_REST_REQUEST,
- new LogFields()
- .setField(LogLine.DefinedFields.RESPONSE_CODE, resultCode)
- .setField(LogLine.DefinedFields.RESPONSE_DESCRIPTION,
- Response.Status.fromStatusCode(resultCode).toString()),
- (request != null) ? request.getMethod() : "Unknown",
- (request != null) ? request.getRequestURL().toString() : "Unknown",
- (request != null) ? request.getRemoteHost() : "Unknown",
- Integer.toString(response.getStatus()));
-
- // Clear the MDC context so that no other transaction inadvertently
- // uses our transaction id.
- ApiUtils.clearMdcContext();
-
- // Finally, return the response.
- return response;
- }
-
-
- /**
- * Processes a client request to remove an index from the document store.
- * Note that this implicitly deletes all documents contained within that index.
- *
- * @param index - The index to be deleted.
- * @return - A standard REST response.
- */
- public Response processDelete(String index,
- HttpServletRequest request,
- HttpHeaders headers,
- DocumentStoreInterface documentStore) {
-
- // Initialize the MDC Context for logging purposes.
- ApiUtils.initMdcContext(request, headers);
-
- // Set a default response in case something unexpected goes wrong.
- Response response = Response.status(javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR)
- .entity("Unknown")
- .build();
-
- // Validate that the request is correctly authenticated before going
- // any further.
- try {
-
- if (!searchService.validateRequest(headers, request, ApiUtils.Action.POST,
- ApiUtils.SEARCH_AUTH_POLICY_NAME)) {
- logger.warn(SearchDbMsgs.INDEX_CREATE_FAILURE, index, "Authentication failure.");
- return errorResponse(Response.Status.FORBIDDEN, "Authentication failure.", request);
- }
-
- } catch (Exception e) {
-
- logger.warn(SearchDbMsgs.INDEX_CREATE_FAILURE, index,
- "Unexpected authentication failure - cause: " + e.getMessage());
- return errorResponse(Response.Status.FORBIDDEN, "Authentication failure.", request);
- }
-
-
- try {
- // Send the request to the document store.
- response = responseFromOperationResult(documentStore.deleteIndex(index));
-
- } catch (DocumentStoreOperationException e) {
- response = Response.status(javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR)
- .entity(e.getMessage())
- .build();
- }
-
-
- // Log the result.
- if ((response.getStatus() >= 200) && (response.getStatus() < 300)) {
- logger.info(SearchDbMsgs.DELETED_INDEX, index);
- } else {
- logger.warn(SearchDbMsgs.INDEX_DELETE_FAILURE, index, (String) response.getEntity());
- }
-
- // Generate our audit log.
- auditLogger.info(SearchDbMsgs.PROCESS_REST_REQUEST,
- new LogFields()
- .setField(LogLine.DefinedFields.RESPONSE_CODE, response.getStatus())
- .setField(LogLine.DefinedFields.RESPONSE_DESCRIPTION,
- response.getStatusInfo().getReasonPhrase()),
- (request != null) ? request.getMethod() : "Unknown",
- (request != null) ? request.getRequestURL().toString() : "Unknown",
- (request != null) ? request.getRemoteHost() : "Unknown",
- Integer.toString(response.getStatus()));
-
- // Clear the MDC context so that no other transaction inadvertently
- // uses our transaction id.
- ApiUtils.clearMdcContext();
-
- return response;
- }
-
-
- /**
- * This method takes a JSON format document schema and produces a set of
- * field mappings in the form that Elastic Search expects.
- *
- * @param documentSchema - A document schema expressed as a JSON string.
- * @return - A JSON string expressing an Elastic Search mapping configuration.
- * @throws com.fasterxml.jackson.core.JsonParseException
- * @throws com.fasterxml.jackson.databind.JsonMappingException
- * @throws IOException
- */
- public String generateDocumentMappings(String documentSchema)
- throws com.fasterxml.jackson.core.JsonParseException,
- com.fasterxml.jackson.databind.JsonMappingException, IOException {
-
- // Unmarshal the json content into a document schema object.
- ObjectMapper mapper = new ObjectMapper();
- DocumentSchema schema = mapper.readValue(documentSchema, DocumentSchema.class);
-
- // Now, generate the Elastic Search mapping json and return it.
- StringBuilder sb = new StringBuilder();
- sb.append("{");
- sb.append("\"properties\": {");
-
- boolean first = true;
- for (DocumentFieldSchema field : schema.getFields()) {
-
- if (!first) {
- sb.append(",");
- } else {
- first = false;
- }
-
- sb.append("\"").append(field.getName()).append("\": {");
-
- // The field type is mandatory.
- sb.append("\"type\": \"").append(field.getDataType()).append("\"");
-
- // If the index field was specified, then append it.
- if (field.getSearchable() != null) {
- sb.append(", \"index\": \"").append(field.getSearchable()
- ? "analyzed" : "not_analyzed").append("\"");
- }
-
- // If a search analyzer was specified, then append it.
- if (field.getSearchAnalyzer() != null) {
- sb.append(", \"search_analyzer\": \"").append(field.getSearchAnalyzer()).append("\"");
- }
-
- // If an indexing analyzer was specified, then append it.
- if (field.getIndexAnalyzer() != null) {
- sb.append(", \"analyzer\": \"").append(field.getIndexAnalyzer()).append("\"");
- } else {
- sb.append(", \"analyzer\": \"").append("whitespace").append("\"");
- }
-
- sb.append("}");
- }
-
- sb.append("}");
- sb.append("}");
-
- logger.debug("Generated document mappings: " + sb.toString());
-
- return sb.toString();
- }
-
-
- /**
- * Converts an {@link OperationResult} to a standard REST {@link Response}
- * object.
- *
- * @param result - The {@link OperationResult} to be converted.
- * @return - The equivalent {@link Response} object.
- */
- public Response responseFromOperationResult(OperationResult result) {
-
- if ((result.getResultCode() >= 200) && (result.getResultCode() < 300)) {
- return Response.status(result.getResultCode()).entity(result.getResult()).build();
- } else {
- if (result.getFailureCause() != null) {
- return Response.status(result.getResultCode()).entity(result.getFailureCause()).build();
- } else {
- return Response.status(result.getResultCode()).entity(result.getResult()).build();
- }
- }
- }
-
- public Response errorResponse(Response.Status status, String msg, HttpServletRequest request) {
-
- // Generate our audit log.
- auditLogger.info(SearchDbMsgs.PROCESS_REST_REQUEST,
- new LogFields()
- .setField(LogLine.DefinedFields.RESPONSE_CODE, status.getStatusCode())
- .setField(LogLine.DefinedFields.RESPONSE_DESCRIPTION, status.getReasonPhrase()),
- (request != null) ? request.getMethod() : "Unknown",
- (request != null) ? request.getRequestURL().toString() : "Unknown",
- (request != null) ? request.getRemoteHost() : "Unknown",
- Integer.toString(status.getStatusCode()));
-
- // Clear the MDC context so that no other transaction inadvertently
- // uses our transaction id.
- ApiUtils.clearMdcContext();
-
- return Response.status(status)
- .entity(msg)
- .build();
- }
-
-
-}