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+/**
+ * Copyright (c) 2018 Orange
+ *
+ * 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.
+ */
+package org.onap.nbi.commons;
+
+import org.onap.nbi.apis.serviceorder.model.StateType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.mongodb.core.query.Criteria;
+import org.springframework.data.mongodb.core.query.Query;
+import org.springframework.stereotype.Service;
+import org.springframework.util.CollectionUtils;
+import org.springframework.util.MultiValueMap;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.List;
+
+@Service
+public class MultiCriteriaRequestBuilder {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(MultiCriteriaRequestBuilder.class);
+
+
+ public Query buildRequest(MultiValueMap<String, String> params) {
+ Query query = new Query();
+
+ List<String> externalIds = params.get("externalId");
+ if (!CollectionUtils.isEmpty(externalIds)) {
+ String externalId = externalIds.get(0);
+ LOGGER.debug("add criterion externalId {}", externalId);
+ query.addCriteria(Criteria.where("externalId").is(externalId));
+
+ }
+ List<String> states = params.get("state");
+ if (!CollectionUtils.isEmpty(states)) {
+ String state = states.get(0);
+ LOGGER.debug("add criterion state {}", state);
+ query.addCriteria(Criteria.where("state").is(StateType.fromValue(state)));
+
+ }
+ List<String> descriptions = params.get("description");
+ if (!CollectionUtils.isEmpty(descriptions)) {
+ String description = descriptions.get(0);
+ LOGGER.debug("add criterion description {}", description);
+ query.addCriteria(Criteria.where("description").is(description));
+
+ }
+ List<String> eventTypes = params.get("query.eventType");
+ if (!CollectionUtils.isEmpty(eventTypes)) {
+ Object[] eventType = new String[]{eventTypes.get(0)};
+ LOGGER.debug("add criterion query.eventType {}", eventType);
+ query.addCriteria(Criteria.where("query.eventType").in(eventType));
+
+ }
+ List<String> callbacks = params.get("callback");
+ if (!CollectionUtils.isEmpty(callbacks)) {
+ String callback = callbacks.get(0);
+ LOGGER.debug("add criterion callback {}", callback);
+ query.addCriteria(Criteria.where("callback").is(callback));
+
+ }
+
+ handleDate(params, query);
+
+ handleOffsetAndLimit(params, query);
+
+ return query;
+ }
+
+ private void handleDate(MultiValueMap<String, String> params, Query query) {
+ List<String> orderDateLts = params.get("orderDate.lt");
+ List<String> orderDateGts = params.get("orderDate.gt");
+ if (!CollectionUtils.isEmpty(orderDateLts) || !CollectionUtils.isEmpty(orderDateGts)) {
+ Criteria orderDateCriteria = Criteria.where("orderDate");
+
+ if (!CollectionUtils.isEmpty(orderDateLts)) {
+ String orderDateLt = orderDateLts.get(0);
+ LOGGER.debug("add criterion orderDate.lt {}", orderDateLt);
+ orderDateCriteria.lt(convertDate(orderDateLt));
+ }
+ if (!CollectionUtils.isEmpty(orderDateGts)) {
+ String orderDateGt = orderDateGts.get(0);
+ LOGGER.debug("add criterion orderDate.gt {}", orderDateGt);
+ orderDateCriteria.gt(convertDate(orderDateGt));
+ }
+ query.addCriteria(orderDateCriteria);
+ }
+ }
+
+ private void handleOffsetAndLimit(MultiValueMap<String, String> params, Query query) {
+ List<String> offsets = params.get("offset");
+ List<String> limits = params.get("limit");
+ if (!CollectionUtils.isEmpty(offsets) && !CollectionUtils.isEmpty(limits)) {
+ String offsetString = offsets.get(0);
+ String limitString = limits.get(0);
+ int offset = Integer.parseInt(offsetString);
+ int limit = Integer.parseInt(limitString);
+ final Pageable pageableRequest = new PageRequest(offset, limit);
+ query.with(pageableRequest);
+ } else if (!CollectionUtils.isEmpty(limits)) {
+ String limitString = limits.get(0);
+ int limit = Integer.parseInt(limitString);
+ final Pageable pageableRequest = new PageRequest(0, limit);
+ query.with(pageableRequest);
+ }
+ }
+
+ private Date convertDate(String dateString) {
+ String dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";
+ SimpleDateFormat formatter = new SimpleDateFormat(dateFormat);
+ try {
+ return formatter.parse(dateString);
+ } catch (ParseException e) {
+ LOGGER.error("unable to convert date " + dateString + ", the pattern is " + dateFormat + " ; " + e);
+ }
+ return null;
+
+ }
+
+}