@Override
public void execute(final SqlStatement[] statements, final List<SqlVisitor> sqlVisitors) throws LiquibaseException {
    for (SqlStatement statement : statements) {
        if (statement.skipOnUnsupported() && !SqlGeneratorFactory.getInstance().supports(statement, this)) {
            continue;
        }
        LogService.getLog(getClass()).debug(LogType.LOG, "Executing Statement: " + statement);
        try {
            ExecutorService.getInstance().getExecutor(this).execute(statement, sqlVisitors);
        } catch (DatabaseException e) {
            if (statement.continueOnError()) {
                LogService.getLog(getClass()).severe(LogType.LOG, "Error executing statement '" + statement.toString() + "', but continuing", e);
            } else {
                throw e;
            }
        }
    }
}
 

@Test
public void integrates() throws DatabaseException {
    final AddColumnConfig firstColumnConfig = new AddColumnConfig();
    firstColumnConfig.setName("id");
    final AddColumnConfig secondColumnConfig = new AddColumnConfig();
    secondColumnConfig.setName("name");

    //Liquibase must find our mssql impl.
    Database database= DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new OfflineConnection("offline:mssql", null));

    CreateIndexStatement statement = new CreateIndexStatement(null, null, null, "TABLE_NAME", true, null, firstColumnConfig, secondColumnConfig);
    Sql[] sql = SqlGeneratorFactory.getInstance().generateSql(statement, database);
    assertEquals("CREATE UNIQUE INDEX ON [TABLE_NAME]([id], [name])", sql[0].toSql());

    statement = new CreateIndexStatementMSSQL(statement, "included, includedtoo", null);
    sql = SqlGeneratorFactory.getInstance().generateSql(statement, database);
    assertEquals("CREATE UNIQUE INDEX ON [TABLE_NAME]([id], [name]) INCLUDE ([included], [includedtoo])", sql[0].toSql());

    statement = new CreateIndexStatementMSSQL(statement, null, 50);
    sql = SqlGeneratorFactory.getInstance().generateSql(statement, database);
    assertEquals("CREATE UNIQUE INDEX ON [TABLE_NAME]([id], [name]) WITH (FILLFACTOR = 50)", sql[0].toSql());

    statement = new CreateIndexStatementMSSQL(statement, "included, includedtoo", 50);
    sql = SqlGeneratorFactory.getInstance().generateSql(statement, database);
    assertEquals("CREATE UNIQUE INDEX ON [TABLE_NAME]([id], [name]) INCLUDE ([included], [includedtoo]) WITH (FILLFACTOR = 50)", sql[0].toSql());
}
 

@Test
public void integrates() throws DatabaseException {

  //Liquibase must find our mssql impl.
  Database database= DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new OfflineConnection("offline:mssql", null));

  AddPrimaryKeyStatement statement = new AddPrimaryKeyStatement("myCat", "mySchema", "myTable", "myCol", "myConstraint");
  statement.setClustered(true);

  Sql[] sql = SqlGeneratorFactory.getInstance().generateSql(statement, database);
  assertEquals("ALTER TABLE [mySchema].[myTable] ADD CONSTRAINT [myConstraint] PRIMARY KEY ([myCol])", sql[0].toSql());

  statement = new AddPrimaryKeyStatementMSSQL(statement, null);
  sql = SqlGeneratorFactory.getInstance().generateSql(statement, database);
  assertEquals("ALTER TABLE [mySchema].[myTable] ADD CONSTRAINT [myConstraint] PRIMARY KEY ([myCol])", sql[0].toSql());

  statement = new AddPrimaryKeyStatementMSSQL(statement, 50);
  sql = SqlGeneratorFactory.getInstance().generateSql(statement, database);
  assertEquals("ALTER TABLE [mySchema].[myTable] ADD CONSTRAINT [myConstraint] PRIMARY KEY ([myCol]) WITH (FILLFACTOR = 50)", sql[0].toSql());
}
 

@Test
public void integrates() throws DatabaseException {

    //Liquibase must find our mssql impl.
    Database database= DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new OfflineConnection("offline:mssql", null));

    InsertStatement statement = new InsertStatement(null, null, "TABLE_NAME");
    statement.addColumnValue("id", 1);
    statement.addColumnValue("name", "asdf");
    
    statement = new InsertStatementMSSQL(statement, true);

    Sql[] sql = SqlGeneratorFactory.getInstance().generateSql(statement, database);
    assertEquals(3, sql.length);

    for (Sql currentSql : sql) {
        assertSqlHasNoDanglingTokens(currentSql.toSql());
    }
}
 

@Override
public Sql[] generateSql(InitializeDatabaseChangeLogLockTableStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
    // get the IDs that are already in the database if migration
    Set<Integer> currentIds = new HashSet<>();
    if (statement instanceof CustomInitializeDatabaseChangeLogLockTableStatement) {
        currentIds = ((CustomInitializeDatabaseChangeLogLockTableStatement) statement).getCurrentIds();
    }

    // generate all the IDs that are currently missing in the lock table
    List<Sql> result = new ArrayList<>();
    for (DBLockProvider.Namespace lock : DBLockProvider.Namespace.values()) {
        if (!currentIds.contains(lock.getId())) {
            InsertStatement insertStatement = new InsertStatement(database.getLiquibaseCatalogName(), database.getLiquibaseSchemaName(), database.getDatabaseChangeLogLockTableName())
                    .addColumnValue("ID", lock.getId())
                    .addColumnValue("LOCKED", Boolean.FALSE);
            result.addAll(Arrays.asList(SqlGeneratorFactory.getInstance().generateSql(insertStatement, database)));
        }
    }

    return result.toArray(new Sql[result.size()]);
}
 

@Override
public void saveStatements(final Change change, final List<SqlVisitor> sqlVisitors, final Writer writer) throws
    IOException {
    SqlStatement[] statements = change.generateStatements(this);
    for (SqlStatement statement : statements) {
        for (Sql sql : SqlGeneratorFactory.getInstance().generateSql(statement, this)) {
            writer.append(sql.toSql()).append(sql.getEndDelimiter()).append(StreamUtil.getLineSeparator()).append(StreamUtil.getLineSeparator());
        }
    }
}
 

@Override
public void saveRollbackStatement(final Change change, final List<SqlVisitor> sqlVisitors, final Writer writer) throws IOException, LiquibaseException {
    SqlStatement[] statements = change.generateRollbackStatements(this);
    for (SqlStatement statement : statements) {
        for (Sql sql : SqlGeneratorFactory.getInstance().generateSql(statement, this)) {
            writer.append(sql.toSql()).append(sql.getEndDelimiter()).append("\n\n");
        }
    }
}
 

@Override
public Sql[] generateSql(MarkChangeSetRanStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
    ChangeSet changeSet = statement.getChangeSet();

    SqlStatement runStatement;
    try {
        if (statement.getExecType().equals(ChangeSet.ExecType.FAILED) || statement.getExecType().equals(ChangeSet.ExecType.SKIPPED)) {
            return new Sql[0]; //don't mark
        }

        String tag = null;
        for (Change change : changeSet.getChanges()) {
            if (change instanceof TagDatabaseChange) {
                TagDatabaseChange tagChange = (TagDatabaseChange) change;
                tag = tagChange.getTag();
            }
        }

        runStatement = new HiveInsertStatement(database.getLiquibaseCatalogName(), database.getLiquibaseSchemaName(), database.getDatabaseChangeLogTableName())
                .addColumnValue(changeSet.getId())
                .addColumnValue(changeSet.getAuthor())
                .addColumnValue(changeSet.getFilePath())
                .addColumnValue(DateTimeUtils.getCurrentTS("yyyy-MM-dd HH:mm:ss"))
                .addColumnValue(ChangeLogHistoryServiceFactory.getInstance().getChangeLogService(database).getNextSequenceValue())
                .addColumnValue(statement.getExecType().value)
                .addColumnValue(changeSet.generateCheckSum().toString())
                .addColumnValue(changeSet.getDescription())
                .addColumnValue(StringUtils.trimToEmpty(changeSet.getComments()))
                .addColumnValue(tag == null ? "NULL" : tag)
                .addColumnValue(ChangeLogHistoryServiceFactory.getInstance().getChangeLogService(database).getDeploymentId())
                .addColumnValue(changeSet.getContexts() == null || changeSet.getContexts().isEmpty() ? null : changeSet.getContexts().toString())
                .addColumnValue(changeSet.getLabels() == null || changeSet.getLabels().isEmpty() ? null : changeSet.getLabels().toString())
                .addColumnValue(LiquibaseUtil.getBuildVersion());
    } catch (LiquibaseException e) {
        throw new UnexpectedLiquibaseException(e);
    }

    return SqlGeneratorFactory.getInstance().generateSql(runStatement, database);
}
 

public static Sql[] generateSql(Database database, List<SqlStatement> statements) {
    List<Sql> sqls = new ArrayList<Sql>();
    SqlGeneratorFactory generatorFactory = SqlGeneratorFactory.getInstance();
    for (SqlStatement statement : statements) {
        sqls.addAll(Arrays.asList(generatorFactory.generateSql(statement, database)));
    }
    return sqls.toArray(new Sql[sqls.size()]);
}
 

public static Sql[] generateSql(Database database, SqlStatement... statements) {
    List<Sql> sqls = new ArrayList<Sql>();
    SqlGeneratorFactory generatorFactory = SqlGeneratorFactory.getInstance();
    for (SqlStatement statement : statements) {
        sqls.addAll(Arrays.asList(generatorFactory.generateSql(statement, database)));
    }
    return sqls.toArray(new Sql[sqls.size()]);
}
 

@Override
public void init() throws DatabaseException {
    if (serviceInitialized) {
        return;
    }
    Database database = getDatabase();
    Executor executor = ExecutorService.getInstance().getExecutor(database);

    Table changeLogTable = null;
    try {
        changeLogTable = SnapshotGeneratorFactory.getInstance().getDatabaseChangeLogTable(new SnapshotControl(database, false, Table.class, Column.class), database);
    } catch (LiquibaseException e) {
        throw new UnexpectedLiquibaseException(e);
    }

    List<SqlStatement> statementsToExecute = new ArrayList<SqlStatement>();

    if (changeLogTable != null) {
        boolean hasDescription = changeLogTable.getColumn("DESCRIPTION") != null;
        boolean hasComments = changeLogTable.getColumn("COMMENTS") != null;
        boolean hasTag = changeLogTable.getColumn("TAG") != null;
        boolean hasLiquibase = changeLogTable.getColumn("LIQUIBASE") != null;
        boolean hasContexts = changeLogTable.getColumn("CONTEXTS") != null;
        boolean hasLabels = changeLogTable.getColumn("LABELS") != null;
        boolean hasOrderExecuted = changeLogTable.getColumn("ORDEREXECUTED") != null;
        boolean hasExecTypeColumn = changeLogTable.getColumn("EXECTYPE") != null;
        String charTypeName = getCharTypeName();
        boolean hasDeploymentIdColumn = changeLogTable.getColumn("DEPLOYMENT_ID") != null;

        if (!hasDescription) {
            executor.comment("Adding missing databasechangelog.description column");
            statementsToExecute.add(new AddColumnStatement(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName(), "DESCRIPTION", charTypeName, null));
        }
        if (!hasTag) {
            executor.comment("Adding missing databasechangelog.tag column");
            statementsToExecute.add(new AddColumnStatement(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName(), "TAG", charTypeName, null));
        }
        if (!hasComments) {
            executor.comment("Adding missing databasechangelog.comments column");
            statementsToExecute.add(new AddColumnStatement(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName(), "COMMENTS", charTypeName, null));
        }
        if (!hasLiquibase) {
            executor.comment("Adding missing databasechangelog.liquibase column");
            statementsToExecute.add(new AddColumnStatement(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName(), "LIQUIBASE", charTypeName, null));
        }
        if (!hasOrderExecuted) {
            executor.comment("Adding missing databasechangelog.orderexecuted column");
            statementsToExecute.add(new AddColumnStatement(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName(), "ORDEREXECUTED", "int", null));
        }
        if (!hasExecTypeColumn) {
            executor.comment("Adding missing databasechangelog.exectype column");
            statementsToExecute.add(new AddColumnStatement(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName(), "EXECTYPE", charTypeName, null));
        }

        if (!hasContexts) {
            executor.comment("Adding missing databasechangelog.contexts column");
            statementsToExecute.add(new AddColumnStatement(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName(), "CONTEXTS", charTypeName, null));
        }

        if (!hasLabels) {
            executor.comment("Adding missing databasechangelog.labels column");
            statementsToExecute.add(new AddColumnStatement(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName(), "LABELS", charTypeName, null));
        }

        if (!hasDeploymentIdColumn) {
            executor.comment("Adding missing databasechangelog.deployment_id column");
            statementsToExecute.add(new AddColumnStatement(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName(), "DEPLOYMENT_ID", charTypeName, null));
        }
    } else {
        executor.comment("Create Database Change Log Table");
        SqlStatement createTableStatement = new CreateDatabaseChangeLogTableStatement();
        if (!canCreateChangeLogTable()) {
            throw new DatabaseException("Cannot create " + getDatabase().escapeTableName(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName()) + " table for your getDatabase().\n\n" +
                    "Please construct it manually using the following SQL as a base and re-run Liquibase:\n\n" +
                    createTableStatement);
        }
        // If there is no table in the database for recording change history create one.
        statementsToExecute.add(createTableStatement);
        LOG.info("Creating database history table with name: " + getDatabase().escapeTableName(getLiquibaseCatalogName(), getLiquibaseSchemaName(), getDatabaseChangeLogTableName()));
    }

    for (SqlStatement sql : statementsToExecute) {
        if (SqlGeneratorFactory.getInstance().supports(sql, database)) {
            executor.execute(sql);
            getDatabase().commit();
        } else {
            LOG.info("Cannot run " + sql.getClass().getSimpleName() + " on " + getDatabase().getShortName() + " when checking databasechangelog table");
        }
    }
    serviceInitialized = true;
}
 

protected void baseLiquibaseInitialization() {
    ServiceLocator sl = ServiceLocator.getInstance();
    sl.setResourceAccessor(new ClassLoaderResourceAccessor(getClass().getClassLoader()));

    if (!System.getProperties().containsKey("liquibase.scan.packages")) {
        if (sl.getPackages().remove("liquibase.core")) {
            sl.addPackageToScan("liquibase.core.xml");
        }

        if (sl.getPackages().remove("liquibase.parser")) {
            sl.addPackageToScan("liquibase.parser.core.xml");
        }

        if (sl.getPackages().remove("liquibase.serializer")) {
            sl.addPackageToScan("liquibase.serializer.core.xml");
        }

        sl.getPackages().remove("liquibase.ext");
        sl.getPackages().remove("liquibase.sdk");

        String lockPackageName = DummyLockService.class.getPackage().getName();
        logger.debugf("Added package %s to liquibase", lockPackageName);
        sl.addPackageToScan(lockPackageName);
    }

    LogFactory.setInstance(new LogWrapper());

    // Adding PostgresPlus support to liquibase
    DatabaseFactory.getInstance().register(new PostgresPlusDatabase());
    // Adding newer version of MySQL/MariaDB support to liquibase
    DatabaseFactory.getInstance().register(new UpdatedMySqlDatabase());
    DatabaseFactory.getInstance().register(new UpdatedMariaDBDatabase());

    // Adding CustomVarcharType for MySQL 8 and newer
    DataTypeFactory.getInstance().register(MySQL8VarcharType.class);

    // Change command for creating lock and drop DELETE lock record from it
    SqlGeneratorFactory.getInstance().register(new CustomInsertLockRecordGenerator());

    // Use "SELECT FOR UPDATE" for locking database
    SqlGeneratorFactory.getInstance().register(new CustomLockDatabaseChangeLogGenerator());
}