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;
43 * Generates filter string.
45 * @param inputFilterString current filterString generated from FilterMap
46 * @param name the pdpInstance name for the PDP statistics to get
47 * @param startTime the start timeStamp to filter from database, filter rule:
48 * startTime <= filteredRecord timeStamp <= endTime. null for ignore end time
49 * @param endTime the end timeStamp to filter from database, filter rule:
50 * startTime <= filteredRecord timeStamp <= endTime. null for ignore end time
51 * @param filterMap Map store extra key/value used to filter from database, can be null *
52 * @param sortOrder sortOrder to query database
53 * @param getRecordNum Total query count from database
56 public String addFilter(final String inputFilterString,
57 final String name, final Instant startTime, final Instant endTime,
58 final Map<String, Object> filterMap, final String sortOrder, final int getRecordNum) {
59 StringBuilder filterQueryString = new StringBuilder(inputFilterString);
60 if (filterMap != null) {
61 for (String key : filterMap.keySet()) {
62 filterQueryString.append("c." + key + "= :" + key + AND);
67 filterQueryString.append(getNameFilter() + AND);
70 if (startTime != null) {
71 if (endTime != null) {
72 filterQueryString.append(getTimeStampStartFilter());
73 filterQueryString.append(AND);
74 filterQueryString.append(getTimeStampEndFilter());
76 filterQueryString.append(getTimeStampStartFilter());
79 if (endTime != null) {
80 filterQueryString.append(getTimeStampEndFilter());
82 filterQueryString.delete(filterQueryString.length() - AND.length(), filterQueryString.length());
86 if (getRecordNum > 0) {
87 filterQueryString.append(ORDER + getTimeStampFilter() + sortOrder);
89 return filterQueryString.toString();