@Test
public void failed() {
StringLogCreator logCreator = new StringLogCreator();
LogFactory.setLogCreator(logCreator);
try {
Flyway flyway = new Flyway();
flyway.setDataSource("jdbc:h2:mem:flyway_failed;DB_CLOSE_DELAY=-1", "sa", "");
flyway.setLocations("migration/failed");
flyway.migrate();
fail();
} catch (FlywayException e) {
System.out.println(logCreator.getOutput());
} finally {
LogFactory.setLogCreator(null);
}
}
@Override
public void execute() throws BuildException {
LogFactory.setLogCreator(new AntLogCreator(getProject()));
log = LogFactory.getLog(getClass());
prepareClassPath();
try {
Flyway flyway = new Flyway();
flyway.setDataSource(createDataSource());
String schemasValue = useValueIfPropertyNotSet(schemas, "schemas");
if (schemasValue != null) {
flyway.setSchemas(StringUtils.tokenizeToStringArray(schemasValue, ","));
}
String tableValue = useValueIfPropertyNotSet(table, "table");
if (tableValue != null) {
flyway.setTable(tableValue);
}
String initialVersionValue = useValueIfPropertyNotSet(initialVersion, "initialVersion");
if (initialVersionValue != null) {
flyway.setInitialVersion(initialVersionValue);
}
String initialDescriptionValue =
useValueIfPropertyNotSet(initialDescription, "initialDescription");
if (initialDescriptionValue != null) {
flyway.setInitialDescription(initialDescriptionValue);
}
String initVersionValue = useValueIfPropertyNotSet(initVersion, "initVersion");
if (initVersionValue != null) {
flyway.setInitVersion(initVersionValue);
}
String initDescriptionValue = useValueIfPropertyNotSet(initDescription, "initDescription");
if (initDescriptionValue != null) {
flyway.setInitDescription(initDescriptionValue);
}
doExecute(flyway);
} catch (Exception e) {
throw new BuildException("Flyway Error: " + e.toString(), ExceptionUtils.getRootCause(e));
}
}
/** Supports reading and writing to the metadata table. */
public class MetaDataTableImpl implements MetaDataTable {
private static final Log LOG = LogFactory.getLog(MetaDataTableImpl.class);
/** Flag indicating whether the upgrade has already been executed. */
private boolean upgraded;
/** Database-specific functionality. */
private final DbSupport dbSupport;
/** The metadata table used by flyway. */
private final Table table;
/** The migration resolver. */
private final MigrationResolver migrationResolver;
/** JdbcTemplate with ddl manipulation access to the database. */
private final JdbcTemplate jdbcTemplate;
/**
* Creates a new instance of the metadata table support.
*
* @param dbSupport Database-specific functionality.
* @param table The metadata table used by flyway.
* @param migrationResolver For resolving available migrations.
*/
public MetaDataTableImpl(DbSupport dbSupport, Table table, MigrationResolver migrationResolver) {
this.jdbcTemplate = dbSupport.getJdbcTemplate();
this.dbSupport = dbSupport;
this.table = table;
this.migrationResolver = migrationResolver;
}
/** Creates the metatable if it doesn't exist, upgrades it if it does. */
private void createIfNotExists() {
if (table.existsNoQuotes() || table.exists()) {
if (!upgraded) {
new MetaDataTableTo20FormatUpgrader(dbSupport, table, migrationResolver).upgrade();
new MetaDataTableTo202FormatUpgrader(dbSupport, table).upgrade();
upgraded = true;
}
return;
}
LOG.info("Creating Metadata table: " + table);
final String source =
new ClassPathResource(dbSupport.getScriptLocation() + "createMetaDataTable.sql")
.loadAsString("UTF-8");
Map<String, String> placeholders = new HashMap<String, String>();
placeholders.put("schema", table.getSchema().getName());
placeholders.put("table", table.getName());
final String sourceNoPlaceholders =
new PlaceholderReplacer(placeholders, "${", "}").replacePlaceholders(source);
SqlScript sqlScript = new SqlScript(sourceNoPlaceholders, dbSupport);
sqlScript.execute(jdbcTemplate);
LOG.debug("Metadata table " + table + " created.");
}
public void lock() {
createIfNotExists();
table.lock();
}
public void addAppliedMigration(AppliedMigration appliedMigration) {
createIfNotExists();
MigrationVersion version = appliedMigration.getVersion();
try {
int versionRank = calculateVersionRank(version);
jdbcTemplate.update(
"UPDATE "
+ table
+ " SET "
+ dbSupport.quote("version_rank")
+ " = "
+ dbSupport.quote("version_rank")
+ " + 1 WHERE "
+ dbSupport.quote("version_rank")
+ " >= ?",
versionRank);
jdbcTemplate.update(
"INSERT INTO "
+ table
+ " ("
+ dbSupport.quote("version_rank")
+ ","
+ dbSupport.quote("installed_rank")
+ ","
+ dbSupport.quote("version")
+ ","
+ dbSupport.quote("description")
+ ","
+ dbSupport.quote("type")
+ ","
+ dbSupport.quote("script")
+ ","
+ dbSupport.quote("checksum")
+ ","
+ dbSupport.quote("installed_by")
+ ","
+ dbSupport.quote("execution_time")
+ ","
+ dbSupport.quote("success")
+ ")"
+ " VALUES (?, ?, ?, ?, ?, ?, ?, "
+ dbSupport.getCurrentUserFunction()
+ ", ?, ?)",
versionRank,
calculateInstalledRank(),
version.toString(),
appliedMigration.getDescription(),
appliedMigration.getType().name(),
appliedMigration.getScript(),
appliedMigration.getChecksum(),
appliedMigration.getExecutionTime(),
appliedMigration.isSuccess());
LOG.debug("MetaData table " + table + " successfully updated to reflect changes");
} catch (SQLException e) {
throw new FlywayException(
"Unable to insert row for version '" + version + "' in metadata table " + table, e);
}
}
/**
* Calculates the installed rank for the new migration to be inserted.
*
* @return The installed rank.
*/
private int calculateInstalledRank() throws SQLException {
int currentMax =
jdbcTemplate.queryForInt(
"SELECT MAX(" + dbSupport.quote("installed_rank") + ")" + " FROM " + table);
return currentMax + 1;
}
/**
* Calculate the rank for this new version about to be inserted.
*
* @param version The version to calculated for.
* @return The rank.
*/
private int calculateVersionRank(MigrationVersion version) throws SQLException {
List<String> versions =
jdbcTemplate.queryForStringList("select " + dbSupport.quote("version") + " from " + table);
List<MigrationVersion> migrationVersions = new ArrayList<MigrationVersion>();
for (String versionStr : versions) {
migrationVersions.add(new MigrationVersion(versionStr));
}
Collections.sort(migrationVersions);
for (int i = 0; i < migrationVersions.size(); i++) {
if (version.compareTo(migrationVersions.get(i)) < 0) {
return i + 1;
}
}
return migrationVersions.size() + 1;
}
public List<AppliedMigration> allAppliedMigrations() {
if (!table.existsNoQuotes() && !table.exists()) {
return new ArrayList<AppliedMigration>();
}
createIfNotExists();
String query =
"SELECT "
+ dbSupport.quote("version_rank")
+ ","
+ dbSupport.quote("installed_rank")
+ ","
+ dbSupport.quote("version")
+ ","
+ dbSupport.quote("description")
+ ","
+ dbSupport.quote("type")
+ ","
+ dbSupport.quote("script")
+ ","
+ dbSupport.quote("checksum")
+ ","
+ dbSupport.quote("installed_on")
+ ","
+ dbSupport.quote("installed_by")
+ ","
+ dbSupport.quote("execution_time")
+ ","
+ dbSupport.quote("success")
+ " FROM "
+ table
+ " ORDER BY "
+ dbSupport.quote("version_rank");
try {
return jdbcTemplate.query(
query,
new RowMapper<AppliedMigration>() {
public AppliedMigration mapRow(final ResultSet rs) throws SQLException {
return new AppliedMigration(
rs.getInt("version_rank"),
rs.getInt("installed_rank"),
new MigrationVersion(rs.getString("version")),
rs.getString("description"),
MigrationType.valueOf(rs.getString("type")),
rs.getString("script"),
toInteger((Number) rs.getObject("checksum")),
rs.getTimestamp("installed_on"),
rs.getString("installed_by"),
toInteger((Number) rs.getObject("execution_time")),
rs.getBoolean("success"));
}
});
} catch (SQLException e) {
throw new FlywayException(
"Error while retrieving the list of applied migrations from metadata table " + table, e);
}
}
/**
* Converts this number into an Integer.
*
* @param number The Number to convert.
* @return The matching Integer.
*/
private Integer toInteger(Number number) {
if (number == null) {
return null;
}
return number.intValue();
}
public MigrationVersion getCurrentSchemaVersion() {
if (!table.existsNoQuotes() && !table.exists()) {
return MigrationVersion.EMPTY;
}
try {
if (jdbcTemplate.queryForInt("SELECT COUNT(*) FROM " + table) == 0) {
return MigrationVersion.EMPTY;
}
} catch (SQLException e) {
throw new FlywayException(
"Error checking if the metadata table " + table + " has at least one row", e);
}
createIfNotExists();
// Determine the version associated with the highest version_rank
String query =
"SELECT t1."
+ dbSupport.quote("version")
+ " FROM "
+ table
+ " t1"
+ " LEFT OUTER JOIN "
+ table
+ " t2 ON"
+ " (t1."
+ dbSupport.quote("version")
+ " = t2."
+ dbSupport.quote("version")
+ " AND t1."
+ dbSupport.quote("version_rank")
+ " < t2."
+ dbSupport.quote("version_rank")
+ ")"
+ " WHERE t2."
+ dbSupport.quote("version")
+ " IS NULL";
try {
String version = jdbcTemplate.queryForString(query);
return new MigrationVersion(version);
} catch (SQLException e) {
throw new FlywayException(
"Error determining current schema version from metadata table " + table, e);
}
}
public void init(final MigrationVersion initVersion, final String initDescription) {
addAppliedMigration(
new AppliedMigration(
initVersion, initDescription, MigrationType.INIT, initDescription, null, 0, true));
}
public void repair() {
if (!table.existsNoQuotes() && !table.exists()) {
LOG.info(
"Repair of metadata table " + table + " not necessary. No failed migration detected.");
return;
}
createIfNotExists();
try {
int failedCount =
jdbcTemplate.queryForInt(
"SELECT COUNT(*) FROM "
+ table
+ " WHERE "
+ dbSupport.quote("success")
+ "="
+ dbSupport.getBooleanFalse());
if (failedCount == 0) {
LOG.info(
"Repair of metadata table " + table + " not necessary. No failed migration detected.");
return;
}
} catch (SQLException e) {
throw new FlywayException(
"Unable to check the metadata table " + table + " for failed migrations", e);
}
StopWatch stopWatch = new StopWatch();
stopWatch.start();
try {
jdbcTemplate.execute(
"DELETE FROM "
+ table
+ " WHERE "
+ dbSupport.quote("success")
+ " = "
+ dbSupport.getBooleanFalse());
} catch (SQLException e) {
throw new FlywayException("Unable to repair metadata table " + table, e);
}
stopWatch.stop();
LOG.info(
"Metadata table "
+ table
+ " successfully repaired (execution time "
+ TimeFormat.format(stopWatch.getTotalTimeMillis())
+ ").");
LOG.info("Manual cleanup of the remaining effects the failed migration may still be required.");
}
public void addSchemasMarker(final Schema[] schemas) {
createIfNotExists();
addAppliedMigration(
new AppliedMigration(
new MigrationVersion("0"),
"<< Flyway Schema Creation >>",
MigrationType.SCHEMA,
StringUtils.arrayToCommaDelimitedString(schemas),
null,
0,
true));
}
public boolean hasSchemasMarker() {
if (!table.existsNoQuotes() && !table.exists()) {
return false;
}
createIfNotExists();
try {
int count =
jdbcTemplate.queryForInt(
"SELECT COUNT(*) FROM " + table + " WHERE " + dbSupport.quote("type") + "='SCHEMA'");
return count > 0;
} catch (SQLException e) {
throw new FlywayException(
"Unable to check whether the metadata table " + table + " has a schema marker migration",
e);
}
}
public boolean hasInitMarker() {
if (!table.existsNoQuotes() && !table.exists()) {
return false;
}
createIfNotExists();
try {
int count =
jdbcTemplate.queryForInt(
"SELECT COUNT(*) FROM " + table + " WHERE " + dbSupport.quote("type") + "='INIT'");
return count > 0;
} catch (SQLException e) {
throw new FlywayException(
"Unable to check whether the metadata table " + table + " has an init marker migration",
e);
}
}
public boolean hasAppliedMigrations() {
if (!table.existsNoQuotes() && !table.exists()) {
return false;
}
createIfNotExists();
try {
int count =
jdbcTemplate.queryForInt(
"SELECT COUNT(*) FROM "
+ table
+ " WHERE "
+ dbSupport.quote("type")
+ " NOT IN ('SCHEMA', 'INIT')");
return count > 0;
} catch (SQLException e) {
throw new FlywayException(
"Unable to check whether the metadata table " + table + " has applied migrations", e);
}
}
@Override
public String toString() {
return table.toString();
}
}
/** Oracle implementation of Schema. */
public class OracleSchema extends Schema {
private static final Log LOG = LogFactory.getLog(OracleSchema.class);
/**
* Creates a new Oracle schema.
*
* @param jdbcTemplate The Jdbc Template for communicating with the DB.
* @param dbSupport The database-specific support.
* @param name The name of the schema.
*/
public OracleSchema(JdbcTemplate jdbcTemplate, DbSupport dbSupport, String name) {
super(jdbcTemplate, dbSupport, name);
}
@Override
protected boolean doExists() throws SQLException {
return jdbcTemplate.queryForInt("SELECT COUNT(*) FROM all_users WHERE username=?", name) > 0;
}
@Override
protected boolean doEmpty() throws SQLException {
return jdbcTemplate.queryForInt("SELECT count(*) FROM all_objects WHERE owner = ?", name) == 0;
}
@Override
protected void doCreate() throws SQLException {
jdbcTemplate.execute("CREATE USER " + dbSupport.quote(name) + " IDENTIFIED BY flyway");
jdbcTemplate.execute("GRANT RESOURCE TO " + dbSupport.quote(name));
}
@Override
protected void doDrop() throws SQLException {
jdbcTemplate.execute("DROP USER " + dbSupport.quote(name) + " CASCADE");
}
@Override
protected void doClean() throws SQLException {
if ("SYSTEM".equals(name.toUpperCase())) {
throw new FlywayException(
"Clean not supported on Oracle for user 'SYSTEM'! You should NEVER add your own objects to the SYSTEM schema!");
}
jdbcTemplate.execute("PURGE RECYCLEBIN");
for (String statement : generateDropStatementsForSpatialExtensions()) {
jdbcTemplate.execute(statement);
}
for (String statement : generateDropStatementsForQueueTables()) {
// for dropping queue tables, a special grant is required:
// GRANT EXECUTE ON DBMS_AQADM TO flyway;
jdbcTemplate.execute(statement);
}
for (String statement : generateDropStatementsForObjectType("SEQUENCE", "")) {
jdbcTemplate.execute(statement);
}
for (String statement : generateDropStatementsForObjectType("FUNCTION", "")) {
jdbcTemplate.execute(statement);
}
for (String statement :
generateDropStatementsForObjectType("MATERIALIZED VIEW", "PRESERVE TABLE")) {
jdbcTemplate.execute(statement);
}
for (String statement : generateDropStatementsForObjectType("PACKAGE", "")) {
jdbcTemplate.execute(statement);
}
for (String statement : generateDropStatementsForObjectType("PROCEDURE", "")) {
jdbcTemplate.execute(statement);
}
for (String statement : generateDropStatementsForObjectType("SYNONYM", "")) {
jdbcTemplate.execute(statement);
}
for (String statement : generateDropStatementsForObjectType("TRIGGER", "")) {
jdbcTemplate.execute(statement);
}
for (String statement : generateDropStatementsForObjectType("VIEW", "CASCADE CONSTRAINTS")) {
jdbcTemplate.execute(statement);
}
for (Table table : allTables()) {
table.drop();
}
for (String statement : generateDropStatementsForXmlTables()) {
jdbcTemplate.execute(statement);
}
for (String statement : generateDropStatementsForObjectType("TYPE", "FORCE")) {
jdbcTemplate.execute(statement);
}
}
/**
* Generates the drop statements for all xml tables.
*
* @return The complete drop statements, ready to execute.
* @throws SQLException when the drop statements could not be generated.
*/
private List<String> generateDropStatementsForXmlTables() throws SQLException {
List<String> dropStatements = new ArrayList<String>();
if (!xmlDBExtensionsAvailable()) {
LOG.debug("Oracle XML DB Extensions are not available. No cleaning of XML tables.");
return dropStatements;
}
List<String> objectNames =
jdbcTemplate.queryForStringList(
"SELECT table_name FROM all_xml_tables WHERE owner = ?", name);
for (String objectName : objectNames) {
dropStatements.add("DROP TABLE " + dbSupport.quote(name, objectName) + " PURGE");
}
return dropStatements;
}
/**
* Checks whether Oracle XML DB extensions are available or not.
*
* @return {@code true} if they are available, {@code false} if not.
* @throws SQLException when checking availability of the extensions failed.
*/
private boolean xmlDBExtensionsAvailable() throws SQLException {
return (jdbcTemplate.queryForInt("SELECT COUNT(*) FROM all_users WHERE username = '******'") > 0)
&& (jdbcTemplate.queryForInt(
"SELECT COUNT(*) FROM all_views WHERE view_name = 'RESOURCE_VIEW'")
> 0);
}
/**
* Generates the drop statements for all database objects of this type.
*
* @param objectType The type of database object to drop.
* @param extraArguments The extra arguments to add to the drop statement.
* @return The complete drop statements, ready to execute.
* @throws SQLException when the drop statements could not be generated.
*/
private List<String> generateDropStatementsForObjectType(String objectType, String extraArguments)
throws SQLException {
String query =
"SELECT object_name FROM all_objects WHERE object_type = ? AND owner = ?"
// Ignore Spatial Index Sequences as they get dropped automatically when the index gets
// dropped.
+ " AND object_name NOT LIKE 'MDRS_%$'";
List<String> objectNames = jdbcTemplate.queryForStringList(query, objectType, name);
List<String> dropStatements = new ArrayList<String>();
for (String objectName : objectNames) {
dropStatements.add(
"DROP " + objectType + " " + dbSupport.quote(name, objectName) + " " + extraArguments);
}
return dropStatements;
}
/**
* Generates the drop statements for Oracle Spatial Extensions-related database objects.
*
* @return The complete drop statements, ready to execute.
* @throws SQLException when the drop statements could not be generated.
*/
private List<String> generateDropStatementsForSpatialExtensions() throws SQLException {
List<String> statements = new ArrayList<String>();
if (!spatialExtensionsAvailable()) {
LOG.debug(
"Oracle Spatial Extensions are not available. No cleaning of MDSYS tables and views.");
return statements;
}
if (!dbSupport.getCurrentSchema().getName().equalsIgnoreCase(name)) {
int count =
jdbcTemplate.queryForInt(
"SELECT COUNT (*) FROM all_sdo_geom_metadata WHERE owner=?", name);
count +=
jdbcTemplate.queryForInt(
"SELECT COUNT (*) FROM all_sdo_index_info WHERE sdo_index_owner=?", name);
if (count > 0) {
LOG.warn(
"Unable to clean Oracle Spatial objects for schema '"
+ name
+ "' as they do not belong to the default schema for this connection!");
}
return statements;
}
statements.add("DELETE FROM mdsys.user_sdo_geom_metadata");
List<String> indexNames =
jdbcTemplate.queryForStringList("select INDEX_NAME from USER_SDO_INDEX_INFO");
for (String indexName : indexNames) {
statements.add("DROP INDEX \"" + indexName + "\"");
}
return statements;
}
/**
* Generates the drop statements for queue tables.
*
* @return The complete drop statements, ready to execute.
* @throws SQLException when the drop statements could not be generated.
*/
private List<String> generateDropStatementsForQueueTables() throws SQLException {
List<String> statements = new ArrayList<String>();
List<String> queueTblNames =
jdbcTemplate.queryForStringList("select QUEUE_TABLE from USER_QUEUE_TABLES");
for (String queueTblName : queueTblNames) {
statements.add(
"begin DBMS_AQADM.drop_queue_table (queue_table=> '"
+ queueTblName
+ "', FORCE => TRUE); end;");
}
return statements;
}
/**
* Checks whether Oracle Spatial extensions are available or not.
*
* @return {@code true} if they are available, {@code false} if not.
* @throws SQLException when checking availability of the spatial extensions failed.
*/
private boolean spatialExtensionsAvailable() throws SQLException {
return jdbcTemplate.queryForInt(
"SELECT COUNT(*) FROM all_views WHERE owner = 'MDSYS' AND view_name = 'USER_SDO_GEOM_METADATA'")
> 0;
}
@Override
protected Table[] doAllTables() throws SQLException {
List<String> tableNames =
jdbcTemplate.queryForStringList(
"SELECT table_name FROM all_tables WHERE owner = ?"
// Ignore Recycle bin objects
+ " AND table_name NOT LIKE 'BIN$%'"
// Ignore Spatial Index Tables as they get dropped automatically when the index gets
// dropped.
+ " AND table_name NOT LIKE 'MDRT_%$'"
// Ignore Materialized View Logs
+ " AND table_name NOT LIKE 'MLOG$%' AND table_name NOT LIKE 'RUPD$%'"
// Ignore Oracle Text Index Tables
+ " AND table_name NOT LIKE 'DR$%'"
// Ignore Index Organized Tables
+ " AND table_name NOT LIKE 'SYS_IOT_OVER_%'"
// Ignore Nested Tables
+ " AND nested != 'YES'"
// Ignore Nested Tables
+ " AND secondary != 'Y'",
name);
Table[] tables = new Table[tableNames.size()];
for (int i = 0; i < tableNames.size(); i++) {
tables[i] = new OracleTable(jdbcTemplate, dbSupport, this, tableNames.get(i));
}
return tables;
}
@Override
public Table getTable(String tableName) {
return new OracleTable(jdbcTemplate, dbSupport, this, tableName);
}
}
/**
* Main workflow for migrating the database.
*
* @author Axel Fontaine
*/
public class DbMigrate {
private static final Log LOG = LogFactory.getLog(DbMigrate.class);
/** The target version of the migration. */
private final MigrationVersion target;
/** Database-specific functionality. */
private final DbSupport dbSupport;
/** The database metadata table. */
private final MetaDataTable metaDataTable;
/** The schema containing the metadata table. */
private final Schema schema;
/** The migration resolver. */
private final MigrationResolver migrationResolver;
/** The connection to use. */
private final Connection connectionMetaDataTable;
/** The connection to use to perform the actual database migrations. */
private final Connection connectionUserObjects;
/** Flag whether to ignore failed future migrations or not. */
private final boolean ignoreFailedFutureMigration;
/**
* Allows migrations to be run "out of order".
*
* <p>If you already have versions 1 and 3 applied, and now a version 2 is found, it will be
* applied too instead of being ignored.
*
* <p>(default: {@code false})
*/
private boolean outOfOrder;
/**
* Creates a new database migrator.
*
* @param connectionMetaDataTable The connection to use.
* @param connectionUserObjects The connection to use to perform the actual database migrations.
* @param dbSupport Database-specific functionality.
* @param metaDataTable The database metadata table.
* @param migrationResolver The migration resolver.
* @param target The target version of the migration.
* @param ignoreFailedFutureMigration Flag whether to ignore failed future migrations or not.
* @param outOfOrder Allows migrations to be run "out of order".
*/
public DbMigrate(
Connection connectionMetaDataTable,
Connection connectionUserObjects,
DbSupport dbSupport,
MetaDataTable metaDataTable,
Schema schema,
MigrationResolver migrationResolver,
MigrationVersion target,
boolean ignoreFailedFutureMigration,
boolean outOfOrder) {
this.connectionMetaDataTable = connectionMetaDataTable;
this.connectionUserObjects = connectionUserObjects;
this.dbSupport = dbSupport;
this.metaDataTable = metaDataTable;
this.schema = schema;
this.migrationResolver = migrationResolver;
this.target = target;
this.ignoreFailedFutureMigration = ignoreFailedFutureMigration;
this.outOfOrder = outOfOrder;
}
/**
* Starts the actual migration.
*
* @return The number of successfully applied migrations.
* @throws FlywayException when migration failed.
*/
public int migrate() throws FlywayException {
StopWatch stopWatch = new StopWatch();
stopWatch.start();
int migrationSuccessCount = 0;
while (true) {
final boolean firstRun = migrationSuccessCount == 0;
MigrationVersion result =
new TransactionTemplate(connectionMetaDataTable, false)
.execute(
new TransactionCallback<MigrationVersion>() {
public MigrationVersion doInTransaction() {
metaDataTable.lock();
MigrationInfoServiceImpl infoService =
new MigrationInfoServiceImpl(
migrationResolver, metaDataTable, target, outOfOrder);
infoService.refresh();
MigrationVersion currentSchemaVersion = MigrationVersion.EMPTY;
if (infoService.current() != null) {
currentSchemaVersion = infoService.current().getVersion();
}
if (firstRun) {
LOG.info(
"Current version of schema " + schema + ": " + currentSchemaVersion);
if (outOfOrder) {
LOG.warn(
"outOfOrder mode is active. Migration of schema "
+ schema
+ " may not be reproducible.");
}
}
MigrationInfo[] future = infoService.future();
if (future.length > 0) {
MigrationInfo[] resolved = infoService.resolved();
if (resolved.length == 0) {
LOG.warn(
"Schema "
+ schema
+ " has version "
+ currentSchemaVersion
+ ", but no migration could be resolved in the configured locations !");
} else {
LOG.warn(
"Schema "
+ schema
+ " has a version ("
+ currentSchemaVersion
+ ") that is newer than the latest available migration ("
+ resolved[resolved.length - 1].getVersion()
+ ") !");
}
}
MigrationInfo[] failed = infoService.failed();
if (failed.length > 0) {
if ((failed.length == 1)
&& (failed[0].getState() == MigrationState.FUTURE_FAILED)
&& ignoreFailedFutureMigration) {
LOG.warn(
"Schema "
+ schema
+ " contains a failed future migration to version "
+ failed[0].getVersion()
+ " !");
} else {
throw new FlywayException(
"Schema "
+ schema
+ " contains a failed migration to version "
+ failed[0].getVersion()
+ " !");
}
}
MigrationInfoImpl[] pendingMigrations = infoService.pending();
if (pendingMigrations.length == 0) {
return null;
}
boolean isOutOfOrder =
pendingMigrations[0].getVersion().compareTo(currentSchemaVersion) < 0;
return applyMigration(
pendingMigrations[0].getResolvedMigration(), isOutOfOrder);
}
});
if (result == null) {
// No further migrations available
break;
}
migrationSuccessCount++;
}
stopWatch.stop();
logSummary(migrationSuccessCount, stopWatch.getTotalTimeMillis());
return migrationSuccessCount;
}
/**
* Logs the summary of this migration run.
*
* @param migrationSuccessCount The number of successfully applied migrations.
* @param executionTime The total time taken to perform this migration run (in ms).
*/
private void logSummary(int migrationSuccessCount, long executionTime) {
if (migrationSuccessCount == 0) {
LOG.info("Schema " + schema + " is up to date. No migration necessary.");
return;
}
if (migrationSuccessCount == 1) {
LOG.info(
"Successfully applied 1 migration to schema "
+ schema
+ " (execution time "
+ TimeFormat.format(executionTime)
+ ").");
} else {
LOG.info(
"Successfully applied "
+ migrationSuccessCount
+ " migrations to schema "
+ schema
+ " (execution time "
+ TimeFormat.format(executionTime)
+ ").");
}
}
/**
* Applies this migration to the database. The migration state and the execution time are updated
* accordingly.
*
* @param migration The migration to apply.
* @param isOutOfOrder If this migration is being applied out of order.
* @return The result of the migration.
*/
private MigrationVersion applyMigration(final ResolvedMigration migration, boolean isOutOfOrder) {
MigrationVersion version = migration.getVersion();
if (isOutOfOrder) {
LOG.info("Migrating schema " + schema + " to version " + version + " (out of order)");
} else {
LOG.info("Migrating schema " + schema + " to version " + version);
}
StopWatch stopWatch = new StopWatch();
stopWatch.start();
try {
new TransactionTemplate(connectionUserObjects)
.execute(
new TransactionCallback<Void>() {
public Void doInTransaction() {
migration.getExecutor().execute(connectionUserObjects);
return null;
}
});
LOG.debug(
"Successfully completed and committed migration of schema "
+ schema
+ " to version "
+ version);
} catch (FlywayException e) {
String failedMsg = "Migration of schema " + schema + " to version " + version + " failed!";
if (dbSupport.supportsDdlTransactions()) {
LOG.error(failedMsg + " Changes successfully rolled back.");
} else {
LOG.error(failedMsg + " Please restore backups and roll back database and code!");
stopWatch.stop();
int executionTime = (int) stopWatch.getTotalTimeMillis();
AppliedMigration appliedMigration =
new AppliedMigration(
version,
migration.getDescription(),
migration.getType(),
migration.getScript(),
migration.getChecksum(),
executionTime,
false);
metaDataTable.addAppliedMigration(appliedMigration);
}
throw e;
}
stopWatch.stop();
int executionTime = (int) stopWatch.getTotalTimeMillis();
AppliedMigration appliedMigration =
new AppliedMigration(
version,
migration.getDescription(),
migration.getType(),
migration.getScript(),
migration.getChecksum(),
executionTime,
true);
metaDataTable.addAppliedMigration(appliedMigration);
return version;
}
}