Newer
Older
/*
* _____________________________________________________________________________
*
* INAF - OATS National Institute for Astrophysics - Astronomical Observatory of
* Trieste INAF - IA2 Italian Center for Astronomical Archives
* _____________________________________________________________________________
*
* Copyright (C) 2016 Istituto Nazionale di Astrofisica
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License Version 3 as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 51
* Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package it.inaf.ia2.tsm;
import it.inaf.ia2.tsm.datalayer.DatabaseType;
import it.inaf.ia2.tsm.datalayer.DBWrapper;
import java.io.Serializable;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.sql.DataSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* TODO: Move queries into data layer classes.
Sonia Zorba
committed
* @author Sonia Zorba {@literal <zorba at oats.inaf.it>}
*/
public class ConsistencyChecks implements Serializable {
private static final long serialVersionUID = 4412404312756740093L;
private final static Logger LOG = LoggerFactory.getLogger(ConsistencyChecks.class);
public static class UnexistingKey implements Serializable {
private static final long serialVersionUID = 7891439129072900628L;
private final String fromTable;
private final String[] fromColumns;
private final String targetTable;
private final String[] targetColumns;
private UnexistingKey(String keyId, String fromTable, String[] fromColumns, String targetTable, String[] targetColumns) {
this.fromTable = fromTable;
this.fromColumns = fromColumns;
this.targetTable = targetTable;
this.targetColumns = targetColumns;
}
public String getKeyId() {
return keyId;
}
public String getFromTable() {
return fromTable;
}
public String[] getFromColumns() {
return fromColumns;
public String getTargetTable() {
return targetTable;
}
public String[] getTargetColumns() {
return targetColumns;
}
private String getColumnsString(String[] columns) {
StringBuilder sb = new StringBuilder();
boolean first = true;
for (String column : columns) {
if (!first) {
sb.append(",");
}
sb.append(column);
first = false;
}
return sb.toString();
}
@Override
public String toString() {
return String.format("[%s] %s(%s) -> %s(%s)", keyId,
fromTable, getColumnsString(fromColumns),
targetTable, getColumnsString(targetColumns));
private final List<InconsistentValue> inconsistencies;
private final Set<String> unexisingSchemas;
private final Set<String> unexisingTables;
private final Map<String, String> unexisingColumns;
private final List<UnexistingKey> unexistingKeys;
public ConsistencyChecks() {
inconsistencies = new ArrayList<>();
unexisingSchemas = new HashSet<>();
unexisingTables = new HashSet<>();
unexisingColumns = new HashMap<>();
unexistingKeys = new ArrayList<>();
public void addInconsistency(InconsistentValue problemDescription) {
inconsistencies.add(problemDescription);
}
public List<InconsistentValue> getInconsistencies() {
return inconsistencies;
}
public Set<String> getUnexisingSchemas() {
return unexisingSchemas;
}
public void addUnexistingSchema(String schemaName) {
unexisingSchemas.add(schemaName);
}
public Set<String> getUnexisingTables() {
return unexisingTables;
}
public void addUnexistingTable(String schemaName, String tableSimpleName) {
unexisingTables.add(schemaName + "." + tableSimpleName);
}
public Map<String, String> getUnexisingColumns() {
return unexisingColumns;
}
public void addUnexistingColumn(String completeTableName, String columnName) {
unexisingColumns.put(completeTableName, columnName);
}
public void addUnexistingKey(String keyId, String fromTable, String[] fromColumns, String targetTable, String[] targetColumns) {
if (keyId == null) {
throw new IllegalArgumentException("key_id can't be null");
}
unexistingKeys.add(new UnexistingKey(keyId, fromTable, fromColumns, targetTable, targetColumns));
public List<UnexistingKey> getUnexistingKeys() {
private Set<String> getKeysToRemove(Connection conn, String tapSchemaNameEscaped, DatabaseType dbType, String like) throws SQLException {
Set<String> ret = new HashSet<>();
String query = String.format("SELECT key_id from %s.%s WHERE from_table LIKE ? OR target_table LIKE ?", tapSchemaNameEscaped, TSMUtil.escapeName("keys", dbType));
try (PreparedStatement ps = conn.prepareStatement(query)) {
ps.setString(1, like + "%");
ps.setString(2, like + "%");
LOG.debug("Executing query: {} [{}]", query, like);
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
try (ResultSet rs = ps.executeQuery()) {
while (rs.next()) {
ret.add(rs.getString("key_id"));
}
}
}
return ret;
}
public boolean isInconsistent() {
return !inconsistencies.isEmpty() || !unexisingSchemas.isEmpty() || !unexisingTables.isEmpty() || !unexisingColumns.isEmpty();
}
public void amendTapSchema(DBWrapper dbWrapper, TapSchema tapSchema) throws SQLException {
Set<String> keysToRemoveIds = new HashSet<>();
DatabaseType dbType = dbWrapper.getTapSchemaDatabaseType();
DataSource dataSource = dbWrapper.getTapSchemaDataSource();
String tapSchemaNameEscaped = TSMUtil.escapeName(tapSchema.getName(), dbType);
String query;
try (Connection conn = dataSource.getConnection()) {
for (String schema : unexisingSchemas) {
keysToRemoveIds.addAll(getKeysToRemove(conn, tapSchemaNameEscaped, dbType, schema));
}
for (String table : unexisingTables) {
keysToRemoveIds.addAll(getKeysToRemove(conn, tapSchemaNameEscaped, dbType, table));
}
for (Map.Entry<String, String> entry : unexisingColumns.entrySet()) {
query = "select k.key_id AS key_id\n"
+ "FROM `keys` k\n"
+ "JOIN key_columns c ON k.key_id = c.key_id\n"
+ "WHERE (k.from_table = ? AND c.from_column = ?) OR (k.target_table = ? AND c.target_column = ?)";
try (PreparedStatement ps = conn.prepareStatement(query)) {
ps.setString(1, entry.getKey());
ps.setString(2, entry.getValue());
ps.setString(3, entry.getKey());
ps.setString(4, entry.getValue());
LOG.debug("Executing query {}", query);
try (ResultSet rs = ps.executeQuery()) {
while (rs.next()) {
keysToRemoveIds.add(rs.getString("key_id"));
}
}
}
}
for (UnexistingKey unexistingKey : unexistingKeys) {
keysToRemoveIds.add(unexistingKey.getKeyId());
}
conn.setAutoCommit(false);
LOG.debug("Starting transaction");
try {
// Removing all key_columns
for (String keyId : keysToRemoveIds) {
query = String.format("DELETE FROM %s.%s WHERE key_id = ?", tapSchemaNameEscaped, TSMUtil.escapeName("key_columns", dbType));
try (PreparedStatement ps = conn.prepareStatement(query)) {
ps.setString(1, keyId);
LOG.debug("Executing query {} [{}]", query, keyId);
ps.executeUpdate();
}
}
// Removing all keys
for (String keyId : keysToRemoveIds) {
query = String.format("DELETE FROM %s.%s WHERE key_id = ?", tapSchemaNameEscaped, TSMUtil.escapeName("keys", dbType));
try (PreparedStatement ps = conn.prepareStatement(query)) {
ps.setString(1, keyId);
LOG.debug("Executing query {} [{}]", query, keyId);
ps.executeUpdate();
}
}
// Removing all columns
for (Map.Entry<String, String> entry : unexisingColumns.entrySet()) {
query = String.format("DELETE FROM %s.%s WHERE table_name = ? AND column_name = ?", tapSchemaNameEscaped, TSMUtil.escapeName("columns", dbType));
try (PreparedStatement ps = conn.prepareStatement(query)) {
ps.setString(1, entry.getKey());
ps.setString(2, entry.getValue());
LOG.debug("Executing query {} [{}, {}]", query, entry.getKey(), entry.getValue());
ps.executeUpdate();
}
}
for (String table : unexisingTables) {
query = String.format("DELETE FROM %s.%s WHERE table_name = ?", tapSchemaNameEscaped, TSMUtil.escapeName("columns", dbType));
try (PreparedStatement ps = conn.prepareStatement(query)) {
ps.setString(1, table);
LOG.debug("Executing query {} [{}]", query, table);
ps.executeUpdate();
}
}
for (String schema : unexisingSchemas) {
query = String.format("DELETE FROM %s.%s WHERE table_name LIKE ?", tapSchemaNameEscaped, TSMUtil.escapeName("columns", dbType));
try (PreparedStatement ps = conn.prepareStatement(query)) {
ps.setString(1, schema + "%");
LOG.debug("Executing query {} [{}%]", query, schema);
ps.executeUpdate();
}
}
// Removing all tables
for (String table : unexisingTables) {
query = String.format("DELETE FROM %s.%s WHERE table_name = ?", tapSchemaNameEscaped, TSMUtil.escapeName("tables", dbType));
try (PreparedStatement ps = conn.prepareStatement(query)) {
ps.setString(1, table);
LOG.debug("Executing query {} [{}]", query, table);
ps.executeUpdate();
}
}
for (String schema : unexisingSchemas) {
query = String.format("DELETE FROM %s.%s WHERE schema_name = ?", tapSchemaNameEscaped, TSMUtil.escapeName("tables", dbType));
try (PreparedStatement ps = conn.prepareStatement(query)) {
ps.setString(1, schema);
LOG.debug("Executing query {} [{}]", query, schema);
ps.executeUpdate();
}
}
// Removing all schemas
for (String schema : unexisingSchemas) {
query = String.format("DELETE FROM %s.%s WHERE schema_name = ?", tapSchemaNameEscaped, TSMUtil.escapeName("schemas", dbType));
try (PreparedStatement ps = conn.prepareStatement(query)) {
ps.setString(1, schema);
LOG.debug("Executing query {} [{}]", query, schema);
ps.executeUpdate();
}
}
conn.commit();
} catch (SQLException e) {
LOG.error("Exception detected. Executing rollback!", e);
try {
conn.rollback();
conn.setAutoCommit(true);
} catch (SQLException er) {
LOG.error("Exception during rollback", er);
throw er;
}
}
}
}
}