2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.openecomp.sdc.versioning.dao.impl;
23 import com.datastax.driver.core.ColumnDefinitions;
24 import com.datastax.driver.core.ResultSet;
25 import com.datastax.driver.core.Row;
26 import com.datastax.driver.mapping.UDTMapper;
27 import org.openecomp.core.dao.UniqueValueDao;
28 import org.openecomp.core.nosqldb.api.NoSqlDb;
29 import org.openecomp.core.nosqldb.factory.NoSqlDbFactory;
30 import org.openecomp.core.util.UniqueValueUtil;
31 import org.openecomp.core.utilities.CommonMethods;
32 import org.openecomp.sdc.logging.api.Logger;
33 import org.openecomp.sdc.logging.api.LoggerFactory;
34 import org.openecomp.sdc.versioning.dao.VersionableEntityDao;
35 import org.openecomp.sdc.versioning.dao.types.Version;
36 import org.openecomp.sdc.versioning.types.UniqueValueMetadata;
37 import org.openecomp.sdc.versioning.types.VersionableEntityMetadata;
39 import java.util.ArrayList;
40 import java.util.HashMap;
41 import java.util.List;
43 import java.util.function.Function;
44 import java.util.stream.Collectors;
46 class VersionableEntityDaoCassandraImpl implements VersionableEntityDao {
48 private final UniqueValueUtil uniqueValueUtil;
49 private static final NoSqlDb noSqlDb = NoSqlDbFactory.getInstance().createInterface();
50 private static Logger Logger =
51 (Logger) LoggerFactory.getLogger(VersionableEntityDaoCassandraImpl.class);
52 private static UDTMapper<Version> versionMapper =
53 noSqlDb.getMappingManager().udtMapper(Version.class);
55 public VersionableEntityDaoCassandraImpl(
56 UniqueValueDao uniqueValueDao) {
57 this.uniqueValueUtil = new UniqueValueUtil(uniqueValueDao);
60 private static String commaSeparatedQuestionMarks(int size) {
61 StringBuilder sb = new StringBuilder(size * 2 - 1);
62 for (int i = 0; i < size; i++) {
73 public void initVersion(VersionableEntityMetadata metadata, String entityId, Version baseVersion,
75 ResultSet rows = loadVersionRows(metadata, entityId, baseVersion);
76 List<String> columnNames =
77 rows.getColumnDefinitions().asList().stream().map(ColumnDefinitions.Definition::getName)
78 .collect(Collectors.toList());
80 String insertCql = String.format("insert into %s (%s) values (%s)", metadata.getName(),
81 CommonMethods.listToSeparatedString(columnNames, ','),
82 commaSeparatedQuestionMarks(columnNames.size()));
83 Logger.debug("insertCql", insertCql);
85 for (Row row : rows) {
86 List<Object> columnValues = new ArrayList<>();
87 Map<String, Object> columnNameToValue = new HashMap<>();
89 for (String columnName : columnNames) {
90 if (metadata.getVersionIdentifierName().equals(columnName)) {
91 columnValues.add(versionMapper.toUDT(newVersion));
92 columnNameToValue.put(columnName, newVersion.toString());
94 Object value = row.getObject(columnName);
95 columnValues.add(value);
96 columnNameToValue.put(columnName, value);
100 initRowUniqueValues(metadata.getUniqueValuesMetadata(), columnNameToValue);
102 noSqlDb.execute(insertCql, columnValues.toArray());
107 public void deleteVersion(VersionableEntityMetadata metadata, String entityId,
108 Version versionToDelete, Version backToVersion) {
109 deleteRowsUniqueValues(metadata, entityId, versionToDelete);
111 String deleteCql = String.format("delete from %s where %s=? and %s=?", metadata.getName(),
112 metadata.getIdentifierName(), metadata.getVersionIdentifierName());
113 noSqlDb.execute(deleteCql, entityId, versionMapper.toUDT(versionToDelete));
117 public void closeVersion(VersionableEntityMetadata versionableTableMetadata, String entityId,
118 Version versionToClose) {
119 // redundant in cassandra impl.
122 private ResultSet loadVersionRows(VersionableEntityMetadata metadata, String entityId,
124 String selectCql = String.format("select * from %s where %s=? and %s=?", metadata.getName(),
125 metadata.getIdentifierName(), metadata.getVersionIdentifierName());
126 Logger.debug("selectCql", selectCql);
127 Logger.debug("entityId", entityId);
128 Logger.debug("version", version);
130 return noSqlDb.execute(selectCql, entityId, versionMapper.toUDT(version));
133 private void initRowUniqueValues(List<UniqueValueMetadata> metadata,
134 Map<String, Object> columnNameToValue) {
135 for (UniqueValueMetadata uniqueMetadata : metadata) {
136 List<String> uniqueValueCombination = uniqueMetadata.getUniqueConstraintIdentifiers().stream()
137 .map(colName -> (String) columnNameToValue.get(colName)).collect(Collectors.toList());
138 uniqueValueUtil.createUniqueValue(uniqueMetadata.getType(),
139 uniqueValueCombination.toArray(new String[uniqueValueCombination.size()]));
143 private void deleteRowUniqueValues(List<UniqueValueMetadata> metadata,
144 Map<String, Object> columnNameToValue) {
145 for (UniqueValueMetadata uniqueMetadata : metadata) {
146 List<String> uniqueValueCombination = uniqueMetadata.getUniqueConstraintIdentifiers().stream()
147 .map(colName -> (String) columnNameToValue.get(colName)).collect(Collectors.toList());
148 uniqueValueUtil.deleteUniqueValue(uniqueMetadata.getType(),
149 uniqueValueCombination.toArray(new String[uniqueValueCombination.size()]));
153 private void deleteRowsUniqueValues(VersionableEntityMetadata metadata, String entityId,
155 if (metadata.getUniqueValuesMetadata().isEmpty()) {
158 ResultSet rows = loadVersionRows(metadata, entityId, version);
159 List<String> columnNames =
160 rows.getColumnDefinitions().asList().stream().map(ColumnDefinitions.Definition::getName)
161 .collect(Collectors.toList());
163 for (Row row : rows) {
164 Map<String, Object> columnNameToValue =
165 columnNames.stream().filter(name -> row.getObject(name) != null).collect(Collectors
166 .toMap(Function.identity(),
167 columnName -> metadata.getVersionIdentifierName().equals(columnName) ? version
168 .toString() : row.getObject(columnName)));
169 deleteRowUniqueValues(metadata.getUniqueValuesMetadata(), columnNameToValue);