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/*
* _____________________________________________________________________________
*
* 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.api;
import it.inaf.ia2.tsm.api.contract.DatabaseType;
import it.inaf.ia2.tsm.api.contract.TapSchema;
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;
/**
*
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);
private final List<InconsistentValue> inconsistencies;
private final List<String> unexisingSchemas;
private final List<String> unexisingTables;
private final Map<String, String> unexisingColumns;
public ConsistencyChecks() {
inconsistencies = new ArrayList<>();
unexisingSchemas = new ArrayList<>();
unexisingTables = new ArrayList<>();
unexisingColumns = new HashMap<>();
}
public void addInconsistency(InconsistentValue problemDescription) {
inconsistencies.add(problemDescription);
}
public List<InconsistentValue> getInconsistencies() {
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return inconsistencies;
}
public List<String> getUnexisingSchemas() {
return unexisingSchemas;
}
public void addUnexistingSchema(String schemaName) {
unexisingSchemas.add(schemaName);
}
public List<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);
}
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);
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"));
}
}
}
}
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;
}
}
}
}
}