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