2 * ============LICENSE_START=======================================================
3 * ONAP : ccsdk features
4 * ================================================================================
5 * Copyright (C) 2021 highstreet technologies GmbH Intellectual Property.
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
22 package org.onap.ccsdk.features.sdnr.wt.dataprovider.database.sqldb.query;
24 import java.util.ArrayList;
25 import java.util.Arrays;
26 import java.util.List;
29 import java.util.stream.Collectors;
30 import org.eclipse.jdt.annotation.Nullable;
31 import org.onap.ccsdk.features.sdnr.wt.dataprovider.database.sqldb.database.SqlDBMapper;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev201110.EntityInput;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev201110.SortOrder;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev201110.entity.input.Filter;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev201110.entity.input.FilterBuilder;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev201110.entity.input.FilterKey;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev201110.entity.input.Pagination;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev201110.entity.input.Sortorder;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev201110.entity.input.SortorderKey;
40 import org.slf4j.Logger;
41 import org.slf4j.LoggerFactory;
43 public class SelectQuery implements SqlQuery {
45 private static final Logger LOG = LoggerFactory.getLogger(SelectQuery.class);
47 private static final long DEFAULT_PAGESIZE = 20;
48 private static final long DEFAULT_PAGE = 1;
49 private final String tableName;
50 private final List<Filter> filters;
51 private final List<String> sortExpressions;
53 private long pageSize;
54 private final List<String> fields;
55 private final List<String> groups;
57 public SelectQuery(String tableName) {
58 this(tableName, (String)null);
60 public SelectQuery(String tableName, String controllerId) {
61 this(tableName, Arrays.asList("*"), controllerId);
63 public SelectQuery(String tableName, List<String> fields, String controllerId) {
64 this.tableName = tableName;
66 this.filters = new ArrayList<>();
67 this.sortExpressions = new ArrayList<>();
68 this.groups = new ArrayList<>();
69 this.page = DEFAULT_PAGE;
70 this.pageSize = DEFAULT_PAGESIZE;
71 if (controllerId != null) {
72 this.addFilter(SqlDBMapper.ODLID_DBCOL, controllerId);
76 public SelectQuery(String tableName, String field, String controllerId) {
77 this(tableName, Arrays.asList(field), controllerId);
80 public SelectQuery(String tableName, EntityInput input) {
81 this(tableName, input, null);
84 public SelectQuery(String tableName, EntityInput input, String controllerId) {
86 Map<FilterKey, Filter> filter = input != null ? input.getFilter() : null;
87 if (filter != null && filter.size() > 0) {
88 for (Filter f : filter.values()) {
92 if (controllerId != null) {
93 this.addFilter(SqlDBMapper.ODLID_DBCOL, controllerId);
96 Map<SortorderKey, Sortorder> so = input != null ? input.getSortorder() : null;
97 if (so != null && !so.isEmpty()) {
98 for (Sortorder s : so.values()) {
99 this.addSortOrder(s.getProperty(), s.getSortorder() == SortOrder.Ascending ? "ASC" : "DESC");
102 Pagination pagination = input != null ? input.getPagination() : null;
103 if (pagination != null) {
104 this.setPagination(pagination.getPage().longValue(), pagination.getSize().longValue());
106 this.setPagination(1, 30);
111 public SelectQuery addFilter(String property, String filtervalue) {
112 this.addFilter(new FilterBuilder().setProperty(property).setFiltervalue(filtervalue).build());
116 private static Filter cleanFilter(Filter filter) {
117 final String sFilter = filter.getFiltervalue();
118 final Set<String> sFilters = filter.getFiltervalues();
119 //if only single filter value is set
120 if (sFilter != null && (sFilters == null || sFilter.isEmpty())) {
121 return "*".equals(filter.getFiltervalue()) ? null : filter;
123 List<String> list = new ArrayList<>(filter.getFiltervalues());
124 if (sFilter != null && !sFilter.isEmpty()) {
127 if (list.size() == 1 && "*".equals(list.get(0))) {
130 return new FilterBuilder().setProperty(filter.getProperty()).setFiltervalue(filter.getFiltervalue())
132 filter.getFiltervalues().stream().filter(e -> !"*".equals(e)).collect(Collectors.toSet()))
137 public void addFilter(Filter filter) {
138 Filter tmp = cleanFilter(filter);
140 LOG.debug("ignore unneccessary filter for {}", filter);
142 this.filters.add(tmp);
146 public void addSortOrder(String col, String order) {
147 this.sortExpressions.add(String.format("`%s` %s", col, order));
150 public void setPagination(long page, long pageSize) {
152 this.pageSize = pageSize;
155 public void setPagination(@Nullable Pagination pagination) {
156 long page = DEFAULT_PAGE;
157 long pageSize = DEFAULT_PAGESIZE;
158 if (pagination != null) {
159 if (pagination.getPage() != null) {
160 page = pagination.getPage().longValue();
162 if (pagination.getSize() != null) {
163 pageSize = pagination.getSize().longValue();
166 this.setPagination(page, pageSize);
171 public String toSql() {
172 StringBuilder sb = new StringBuilder();
173 if (this.fields.size() == 1 && this.fields.contains("*")) {
174 sb.append(String.format("SELECT * FROM `%s`", this.tableName));
176 sb.append(String.format("SELECT `%s` FROM `%s`", String.join("`,`", this.fields), this.tableName));
178 sb.append(SqlQuery.getWhereExpression(this.filters));
179 if (this.groups.size() > 0) {
180 sb.append(String.format(" GROUP BY `%s`", String.join("`,`", this.groups)));
182 if (this.sortExpressions.size() > 0) {
183 sb.append(" ORDER BY " + String.join(",", this.sortExpressions));
185 sb.append(String.format(" LIMIT %d,%d;", (this.page - 1) * this.pageSize, this.pageSize));
186 return sb.toString();
189 public long getPage() {
193 public long getPageSize() {
194 return this.pageSize;
197 public SelectQuery groupBy(String group) {
198 this.groups.add(group);