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 org.openecomp.core.dao.UniqueValueDao;
27 import org.openecomp.core.nosqldb.api.NoSqlDb;
28 import org.openecomp.core.nosqldb.factory.NoSqlDbFactory;
29 import org.openecomp.core.util.UniqueValueUtil;
30 import org.openecomp.core.utilities.CommonMethods;
31 import org.openecomp.sdc.logging.api.Logger;
32 import org.openecomp.sdc.logging.api.LoggerFactory;
33 import org.openecomp.sdc.versioning.dao.VersionableEntityDao;
34 import org.openecomp.sdc.versioning.dao.types.Version;
35 import org.openecomp.sdc.versioning.types.UniqueValueMetadata;
36 import org.openecomp.sdc.versioning.types.VersionableEntityMetadata;
38 import java.util.ArrayList;
39 import java.util.HashMap;
40 import java.util.List;
42 import java.util.function.Function;
43 import java.util.stream.Collectors;
45 class VersionableEntityDaoCassandraImpl implements VersionableEntityDao {
47 private final UniqueValueUtil uniqueValueUtil;
48 private static final NoSqlDb noSqlDb = NoSqlDbFactory.getInstance().createInterface();
49 private static Logger Logger =
50 (Logger) LoggerFactory.getLogger(VersionableEntityDaoCassandraImpl.class);
52 public VersionableEntityDaoCassandraImpl(
53 UniqueValueDao uniqueValueDao) {
54 this.uniqueValueUtil = new UniqueValueUtil(uniqueValueDao);
57 private static String commaSeparatedQuestionMarks(int size) {
58 StringBuilder sb = new StringBuilder(size * 2 - 1);
59 for (int i = 0; i < size; i++) {
70 public void initVersion(VersionableEntityMetadata metadata, String entityId, Version baseVersion,
72 ResultSet rows = loadVersionRows(metadata, entityId, baseVersion);
73 List<String> columnNames =
74 rows.getColumnDefinitions().asList().stream().map(ColumnDefinitions.Definition::getName)
75 .collect(Collectors.toList());
77 String insertCql = String.format("insert into %s (%s) values (%s)", metadata.getName(),
78 CommonMethods.listToSeparatedString(columnNames, ','),
79 commaSeparatedQuestionMarks(columnNames.size()));
80 Logger.debug("insertCql", insertCql);
82 for (Row row : rows) {
83 List<Object> columnValues = new ArrayList<>();
84 Map<String, Object> columnNameToValue = new HashMap<>();
86 for (String columnName : columnNames) {
87 if (metadata.getVersionIdentifierName().equals(columnName)) {
88 columnValues.add(newVersion);
89 columnNameToValue.put(columnName, newVersion.toString());
91 Object value = row.getObject(columnName);
92 columnValues.add(value);
93 columnNameToValue.put(columnName, value);
97 initRowUniqueValues(metadata.getUniqueValuesMetadata(), columnNameToValue);
99 noSqlDb.execute(insertCql, columnValues.toArray());
104 public void deleteVersion(VersionableEntityMetadata metadata, String entityId,
105 Version versionToDelete, Version backToVersion) {
106 deleteRowsUniqueValues(metadata, entityId, versionToDelete);
108 String deleteCql = String.format("delete from %s where %s=? and %s=?", metadata.getName(),
109 metadata.getIdentifierName(), metadata.getVersionIdentifierName());
110 noSqlDb.execute(deleteCql, entityId, versionToDelete);
114 public void closeVersion(VersionableEntityMetadata versionableTableMetadata, String entityId,
115 Version versionToClose) {
116 // redundant in cassandra impl.
119 private ResultSet loadVersionRows(VersionableEntityMetadata metadata, String entityId,
121 String selectCql = String.format("select * from %s where %s=? and %s=?", metadata.getName(),
122 metadata.getIdentifierName(), metadata.getVersionIdentifierName());
123 Logger.debug("selectCql", selectCql);
124 Logger.debug("entityId", entityId);
125 Logger.debug("version", version);
127 return noSqlDb.execute(selectCql, entityId, version);
130 private void initRowUniqueValues(List<UniqueValueMetadata> metadata,
131 Map<String, Object> columnNameToValue) {
132 for (UniqueValueMetadata uniqueMetadata : metadata) {
133 List<String> uniqueValueCombination = uniqueMetadata.getUniqueConstraintIdentifiers().stream()
134 .map(colName -> (String) columnNameToValue.get(colName)).collect(Collectors.toList());
135 uniqueValueUtil.createUniqueValue(uniqueMetadata.getType(),
136 uniqueValueCombination.toArray(new String[uniqueValueCombination.size()]));
140 private void deleteRowUniqueValues(List<UniqueValueMetadata> metadata,
141 Map<String, Object> columnNameToValue) {
142 for (UniqueValueMetadata uniqueMetadata : metadata) {
143 List<String> uniqueValueCombination = uniqueMetadata.getUniqueConstraintIdentifiers().stream()
144 .map(colName -> (String) columnNameToValue.get(colName)).collect(Collectors.toList());
145 uniqueValueUtil.deleteUniqueValue(uniqueMetadata.getType(),
146 uniqueValueCombination.toArray(new String[uniqueValueCombination.size()]));
150 private void deleteRowsUniqueValues(VersionableEntityMetadata metadata, String entityId,
152 if (metadata.getUniqueValuesMetadata().isEmpty()) {
155 ResultSet rows = loadVersionRows(metadata, entityId, version);
156 List<String> columnNames =
157 rows.getColumnDefinitions().asList().stream().map(ColumnDefinitions.Definition::getName)
158 .collect(Collectors.toList());
160 for (Row row : rows) {
161 Map<String, Object> columnNameToValue =
162 columnNames.stream().filter(name -> row.getObject(name) != null).collect(Collectors
163 .toMap(Function.identity(),
164 columnName -> metadata.getVersionIdentifierName().equals(columnName) ? version
165 .toString() : row.getObject(columnName)));
166 deleteRowUniqueValues(metadata.getUniqueValuesMetadata(), columnNameToValue);