2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2021 Nordix Foundation.
4 * Modifications Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * SPDX-License-Identifier: Apache-2.0
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.models.dao;
24 import java.time.Instant;
28 * This abstract class is used as a base for the filter implementations.
33 public abstract class PfFilter {
34 private static final String AND = " AND ";
35 private static final String ORDER = " ORDER BY ";
37 private String nameFilter;
38 private String timeStampStartFilter;
39 private String timeStampEndFilter;
40 private String timeStampFilter;
41 private String nameParameter;
42 private String keyPrefix;
45 * Generates filter string.
47 * @param inputFilterString current filterString generated from FilterMap
48 * @param name the pdpInstance name for the PDP statistics to get
49 * @param startTime the start timeStamp to filter from database, filter rule:
50 * startTime <= filteredRecord timeStamp <= endTime. null for ignore end time
51 * @param endTime the end timeStamp to filter from database, filter rule:
52 * startTime <= filteredRecord timeStamp <= endTime. null for ignore end time
53 * @param filterMap Map store extra key/value used to filter from database, can be null *
54 * @param sortOrder sortOrder to query database
55 * @param getRecordNum Total query count from database
58 public String addFilter(final String inputFilterString,
59 final String name, final Instant startTime, final Instant endTime,
60 final Map<String, Object> filterMap, final String sortOrder, final int getRecordNum) {
61 var filterQueryString = new StringBuilder(inputFilterString);
62 if (filterMap != null) {
63 for (String key : filterMap.keySet()) {
64 filterQueryString.append(getKeyPrefix() + key + "= :" + key + AND);
69 filterQueryString.append(getNameFilter() + AND);
72 if (startTime != null) {
73 if (endTime != null) {
74 filterQueryString.append(getTimeStampStartFilter());
75 filterQueryString.append(AND);
76 filterQueryString.append(getTimeStampEndFilter());
78 filterQueryString.append(getTimeStampStartFilter());
81 if (endTime != null) {
82 filterQueryString.append(getTimeStampEndFilter());
84 filterQueryString.delete(filterQueryString.length() - AND.length(), filterQueryString.length());
88 if (getRecordNum > 0) {
89 filterQueryString.append(ORDER + getTimeStampFilter() + sortOrder);
91 return filterQueryString.toString();