/** Tags the database changelog with the given string. */
@Override
public void tag(String tagString) throws DatabaseException {
Executor executor = ExecutorService.getInstance().getExecutor(this);
try {
int totalRows =
ExecutorService.getInstance()
.getExecutor(this)
.queryForInt(new SelectFromDatabaseChangeLogStatement("COUNT(*)"));
if (totalRows == 0) {
ChangeSet emptyChangeSet =
new ChangeSet(
String.valueOf(new Date().getTime()),
"liquibase",
false,
false,
"liquibase-internal",
null,
null);
this.markChangeSetExecStatus(emptyChangeSet, ChangeSet.ExecType.EXECUTED);
}
// Timestamp lastExecutedDate = (Timestamp)
// this.getExecutor().queryForObject(createChangeToTagSQL(),
// Timestamp.class);
executor.execute(new TagDatabaseStatement(tagString));
this.commit();
getRanChangeSetList().get(getRanChangeSetList().size() - 1).setTag(tagString);
} catch (Exception e) {
throw new DatabaseException(e);
}
}
@Override
public boolean acquireLock() throws LockException {
if (hasChangeLogLock) {
return true;
}
Executor executor = ExecutorService.getInstance().getExecutor(database);
try {
database.rollback();
this.init();
Boolean locked =
(Boolean)
ExecutorService.getInstance()
.getExecutor(database)
.queryForObject(
new SelectFromDatabaseChangeLogLockStatement("LOCKED"), Boolean.class);
if (locked) {
return false;
} else {
executor.comment("Lock Database");
int rowsUpdated = executor.update(new LockDatabaseChangeLogStatement());
if (rowsUpdated > 1) {
throw new LockException("Did not update change log lock correctly");
}
if (rowsUpdated == 0) {
// another node was faster
return false;
}
database.commit();
LogFactory.getLogger().info("Successfully acquired change log lock");
hasChangeLogLock = true;
database.setCanCacheLiquibaseTableInfo(true);
return true;
}
} catch (Exception e) {
throw new LockException(e);
} finally {
try {
database.rollback();
} catch (DatabaseException e) {;
}
}
}
public void releaseLock() throws DatabaseException, LockException {
Executor executor = ExecutorService.getInstance().getExecutor(database);
try {
if (database.hasDatabaseChangeLogLockTable()) {
executor.comment("Release Database Lock");
database.rollback();
int updatedRows = executor.update(new UnlockDatabaseChangeLogStatement());
if (updatedRows != 1) {
throw new LockException(
"Did not update change log lock correctly.\n\n"
+ updatedRows
+ " rows were updated instead of the expected 1 row using executor "
+ executor.getClass().getName()
+ " there are "
+ executor.queryForInt(
new RawSqlStatement(
"select count(*) from " + database.getDatabaseChangeLogLockTableName()))
+ " rows in the table");
}
database.commit();
hasChangeLogLock = false;
instances.remove(this.database);
database.setCanCacheLiquibaseTableInfo(false);
LogFactory.getLogger().info("Successfully released change log lock");
}
} finally {
database.rollback();
}
}
/**
* Generates the SQL statements required to run the change.
*
* @param database databasethe target {@link liquibase.database.Database} associated to this
* change's statements
* @return an array of {@link String}s with the statements
*/
public SqlStatement[] generateStatements(Database database) {
final InsertStatement insertDefinition =
new InsertStatement(database.getDefaultSchemaName(), "krim_attr_defn_t");
final SqlStatement getId =
new RuntimeStatement() {
public Sql[] generate(Database database) {
return new Sql[] {
new UnparsedSql("insert into krim_attr_defn_id_s values(null)"),
new UnparsedSql("select max(id) from krim_attr_defn_id_s")
};
}
};
try {
final BigInteger id =
(BigInteger)
ExecutorService.getInstance()
.getExecutor(database)
.queryForObject(getId, BigInteger.class);
insertDefinition.addColumnValue("KIM_ATTR_DEFN_ID", id);
insertDefinition.addColumnValue("nmspc_cd", getNamespace());
insertDefinition.addColumnValue("NM", getName());
insertDefinition.addColumnValue("LBL", getLabel());
insertDefinition.addColumnValue("actv_ind", getActive());
insertDefinition.addColumnValue("CMPNT_NM", getComponent());
insertDefinition.addColumnValue("ver_nbr", 1);
insertDefinition.addColumnValue("obj_id", "sys_guid()");
} catch (Exception e) {
throw new RuntimeException(e);
}
return new SqlStatement[] {insertDefinition};
}
public DatabaseChangeLogLock[] listLocks() throws DatabaseException {
try {
if (!database.hasDatabaseChangeLogLockTable()) {
return new DatabaseChangeLogLock[0];
}
List<DatabaseChangeLogLock> allLocks = new ArrayList<DatabaseChangeLogLock>();
SqlStatement sqlStatement =
new SelectFromDatabaseChangeLogLockStatement("ID", "LOCKED", "LOCKGRANTED", "LOCKEDBY");
List<Map> rows =
ExecutorService.getInstance().getExecutor(database).queryForList(sqlStatement);
for (Map columnMap : rows) {
Object lockedValue = columnMap.get("LOCKED");
Boolean locked;
if (lockedValue instanceof Number) {
locked = ((Number) lockedValue).intValue() == 1;
} else {
locked = (Boolean) lockedValue;
}
if (locked != null && locked) {
allLocks.add(
new DatabaseChangeLogLock(
((Number) columnMap.get("ID")).intValue(),
(Date) columnMap.get("LOCKGRANTED"),
(String) columnMap.get("LOCKEDBY")));
}
}
return allLocks.toArray(new DatabaseChangeLogLock[allLocks.size()]);
} finally {
database
.rollback(); // Rollback to make sure any database explicitly imposed lock from the above
// SELECT statement gets released. CORE-1219 incident.
}
}
public boolean isDatabaseChangeLogLockTableInitialized(final boolean tableJustCreated)
throws DatabaseException {
if (!isDatabaseChangeLogLockTableInitialized) {
Executor executor = ExecutorService.getInstance().getExecutor(database);
try {
isDatabaseChangeLogLockTableInitialized =
executor.queryForInt(
new RawSqlStatement(
"select count(*) from "
+ database.escapeTableName(
database.getLiquibaseCatalogName(),
database.getLiquibaseSchemaName(),
database.getDatabaseChangeLogLockTableName())))
> 0;
} catch (LiquibaseException e) {
if (executor.updatesDatabase()) {
throw new UnexpectedLiquibaseException(e);
} else {
// probably didn't actually create the table yet.
isDatabaseChangeLogLockTableInitialized = !tableJustCreated;
}
}
}
return isDatabaseChangeLogLockTableInitialized;
}
@Override
public DatabaseChangeLogLock[] listLocks() throws LockException {
try {
if (!this.hasDatabaseChangeLogLockTable()) {
return new DatabaseChangeLogLock[0];
}
List<DatabaseChangeLogLock> allLocks = new ArrayList<DatabaseChangeLogLock>();
SqlStatement sqlStatement =
new SelectFromDatabaseChangeLogLockStatement("ID", "LOCKED", "LOCKGRANTED", "LOCKEDBY");
List<Map<String, ?>> rows =
ExecutorService.getInstance().getExecutor(database).queryForList(sqlStatement);
for (Map columnMap : rows) {
Object lockedValue = columnMap.get("LOCKED");
Boolean locked;
if (lockedValue instanceof Number) {
locked = ((Number) lockedValue).intValue() == 1;
} else {
locked = (Boolean) lockedValue;
}
if (locked != null && locked) {
allLocks.add(
new DatabaseChangeLogLock(
((Number) columnMap.get("ID")).intValue(),
(Date) columnMap.get("LOCKGRANTED"),
(String) columnMap.get("LOCKEDBY")));
}
}
return allLocks.toArray(new DatabaseChangeLogLock[allLocks.size()]);
} catch (Exception e) {
throw new LockException(e);
}
}
@Test
public void accepts() throws DatabaseException {
ArrayList<RanChangeSet> ranChanges = new ArrayList<RanChangeSet>();
ranChanges.add(
new RanChangeSet(
"path/changelog", "1", "testAuthor", CheckSum.parse("12345"), new Date(), null, null));
ranChanges.add(
new RanChangeSet(
"path/changelog", "2", "testAuthor", CheckSum.parse("12345"), new Date(), null, null));
Database database = createMock(Database.class);
expect(database.getRanChangeSetList()).andReturn(ranChanges);
expect(database.getDatabaseChangeLogTableName()).andReturn("DATABASECHANGELOG").anyTimes();
expect(database.getDefaultSchemaName()).andReturn(null).anyTimes();
Executor template = createMock(Executor.class);
expect(template.update(isA(UpdateStatement.class))).andReturn(1).anyTimes();
// template.comment("Lock Database");
// expectLastCall();
replay(database);
replay(template);
ExecutorService.getInstance().setExecutor(database, template);
ShouldRunChangeSetFilter filter = new ShouldRunChangeSetFilter(database);
// everything same
assertFalse(
filter.accepts(
new ChangeSet("1", "testAuthor", false, false, "path/changelog", null, null)));
// alwaysRun
assertTrue(
filter.accepts(
new ChangeSet("1", "testAuthor", true, false, "path/changelog", null, null)));
// run on change
assertTrue(
filter.accepts(
new ChangeSet("1", "testAuthor", false, true, "path/changelog", null, null)));
// different id
assertTrue(
filter.accepts(
new ChangeSet("3", "testAuthor", false, false, "path/changelog", null, null)));
// different author
assertTrue(
filter.accepts(
new ChangeSet("1", "otherAuthor", false, false, "path/changelog", null, null)));
// different path
assertTrue(
filter.accepts(
new ChangeSet("1", "testAuthor", false, false, "other/changelog", null, null)));
}
@Override
public boolean doesTagExist(String tag) throws DatabaseException {
int count =
ExecutorService.getInstance()
.getExecutor(this)
.queryForInt(
new SelectFromDatabaseChangeLogStatement(
new SelectFromDatabaseChangeLogStatement.ByTag("tag"), "COUNT(*)"));
return count > 0;
}
/**
* After the change set has been ran against the database this method will update the change log
* table with the information.
*/
@Override
public void markChangeSetExecStatus(ChangeSet changeSet, ChangeSet.ExecType execType)
throws DatabaseException {
ExecutorService.getInstance()
.getExecutor(this)
.execute(new MarkChangeSetRanStatement(changeSet, execType));
commit();
getRanChangeSetList().add(new RanChangeSet(changeSet, execType));
}
@Override
public void removeRanStatus(ChangeSet changeSet) throws DatabaseException {
ExecutorService.getInstance()
.getExecutor(this)
.execute(new RemoveChangeSetRanStatusStatement(changeSet));
commit();
getRanChangeSetList().remove(new RanChangeSet(changeSet));
}
/** Returns the run status for the given ChangeSet */
@Override
public ChangeSet.RunStatus getRunStatus(ChangeSet changeSet)
throws DatabaseException, DatabaseHistoryException {
if (!hasDatabaseChangeLogTable()) {
return ChangeSet.RunStatus.NOT_RAN;
}
RanChangeSet foundRan = getRanChangeSet(changeSet);
if (foundRan == null) {
return ChangeSet.RunStatus.NOT_RAN;
} else {
if (foundRan.getLastCheckSum() == null) {
try {
LogFactory.getLogger().info("Updating NULL md5sum for " + changeSet.toString());
ExecutorService.getInstance()
.getExecutor(this)
.execute(
new RawSqlStatement(
"UPDATE "
+ escapeTableName(
getLiquibaseSchemaName(), getDatabaseChangeLogTableName())
+ " SET MD5SUM='"
+ changeSet.generateCheckSum().toString()
+ "' WHERE ID='"
+ changeSet.getId()
+ "' AND AUTHOR='"
+ changeSet.getAuthor()
+ "' AND FILENAME='"
+ changeSet.getFilePath()
+ "'"));
this.commit();
} catch (DatabaseException e) {
throw new DatabaseException(e);
}
return ChangeSet.RunStatus.ALREADY_RAN;
} else {
if (foundRan.getLastCheckSum().equals(changeSet.generateCheckSum())) {
return ChangeSet.RunStatus.ALREADY_RAN;
} else {
if (changeSet.shouldRunOnChange()) {
return ChangeSet.RunStatus.RUN_AGAIN;
} else {
return ChangeSet.RunStatus.INVALID_MD5SUM;
// throw new DatabaseHistoryException("MD5 Check for " + changeSet.toString() + "
// failed");
}
}
}
}
}
/*
* Executes the statements passed
*
* @param statements an array containing the SQL statements to be issued
* @param sqlVisitors a list of {@link SqlVisitor} objects to be applied to the executed statements
* @throws DatabaseException if there were problems issuing the statements
*/
@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;
}
LogFactory.getLogger().debug("Executing Statement: " + statement);
ExecutorService.getInstance().getExecutor(this).execute(statement, sqlVisitors);
}
}
@Override
public void init() throws DatabaseException {
boolean createdTable = false;
Executor executor = ExecutorService.getInstance().getExecutor(database);
if (!hasDatabaseChangeLogLockTable()) {
executor.comment("Create Database Lock Table");
executor.execute(new CreateDatabaseChangeLogLockTableStatement());
database.commit();
LogFactory.getLogger()
.debug(
"Created database lock table with name: "
+ database.escapeTableName(
database.getLiquibaseCatalogName(),
database.getLiquibaseSchemaName(),
database.getDatabaseChangeLogLockTableName()));
this.hasDatabaseChangeLogLockTable = true;
createdTable = true;
}
if (!isDatabaseChangeLogLockTableInitialized(createdTable)) {
executor.comment("Initialize Database Lock Table");
executor.execute(new InitializeDatabaseChangeLogLockTableStatement());
database.commit();
}
if (database instanceof DerbyDatabase
&& ((DerbyDatabase) database)
.supportsBooleanDataType()) { // check if the changelog table is of an old smallint vs.
// boolean format
String lockTable =
database.escapeTableName(
database.getLiquibaseCatalogName(),
database.getLiquibaseSchemaName(),
database.getDatabaseChangeLogLockTableName());
Object obj =
executor.queryForObject(
new RawSqlStatement(
"select min(locked) as test from " + lockTable + " fetch first row only"),
Object.class);
if (!(obj instanceof Boolean)) { // wrong type, need to recreate table
executor.execute(
new DropTableStatement(
database.getLiquibaseCatalogName(),
database.getLiquibaseSchemaName(),
database.getDatabaseChangeLogLockTableName(),
false));
executor.execute(new CreateDatabaseChangeLogLockTableStatement());
executor.execute(new InitializeDatabaseChangeLogLockTableStatement());
}
}
}
/** Returns the ChangeSets that have been run against the current database. */
@Override
public List<RanChangeSet> getRanChangeSetList() throws DatabaseException {
if (this.ranChangeSetList != null) {
return this.ranChangeSetList;
}
String databaseChangeLogTableName =
escapeTableName(getLiquibaseSchemaName(), getDatabaseChangeLogTableName());
ranChangeSetList = new ArrayList<RanChangeSet>();
if (hasDatabaseChangeLogTable()) {
LogFactory.getLogger().info("Reading from " + databaseChangeLogTableName);
SqlStatement select =
new SelectFromDatabaseChangeLogStatement(
"FILENAME",
"AUTHOR",
"ID",
"MD5SUM",
"DATEEXECUTED",
"ORDEREXECUTED",
"TAG",
"EXECTYPE")
.setOrderBy("DATEEXECUTED ASC", "ORDEREXECUTED ASC");
List<Map> results = ExecutorService.getInstance().getExecutor(this).queryForList(select);
for (Map<?, ?> rs : results) {
String fileName = rs.get("FILENAME").toString();
String author = rs.get("AUTHOR").toString();
String id = rs.get("ID").toString();
String md5sum = rs.get("MD5SUM") == null ? null : rs.get("MD5SUM").toString();
Date dateExecuted = (Date) rs.get("DATEEXECUTED");
String tag = rs.get("TAG") == null ? null : rs.get("TAG").toString();
String execType = rs.get("EXECTYPE") == null ? null : rs.get("EXECTYPE").toString();
try {
RanChangeSet ranChangeSet =
new RanChangeSet(
fileName,
id,
author,
CheckSum.parse(md5sum),
dateExecuted,
tag,
ChangeSet.ExecType.valueOf(execType));
ranChangeSetList.add(ranChangeSet);
} catch (IllegalArgumentException e) {
LogFactory.getLogger().severe("Unknown EXECTYPE from database: " + execType);
throw e;
}
}
}
return ranChangeSetList;
}
/**
* Overwrite this method to get the default schema name for the connection.
*
* @return
*/
protected String getConnectionSchemaName() {
if (connection == null || connection instanceof OfflineConnection) {
return null;
}
try {
return ExecutorService.getInstance()
.getExecutor(this)
.queryForObject(new RawCallStatement("call current_schema"), String.class);
} catch (Exception e) {
LogFactory.getLogger().info("Error getting default schema", e);
}
return null;
}
@Test
public void testUpdateSQLNoAlterSqlDryMode() {
ExecutorService.getInstance()
.setExecutor(database, new LoggingExecutor(null, new StringWriter(), database));
System.setProperty(Configuration.NO_ALTER_SQL_DRY_MODE, "true");
SqlStatement[] statements = c.generateStatements(database);
Assert.assertEquals(1, statements.length);
Assert.assertEquals(CommentStatement.class, statements[0].getClass());
Assert.assertEquals(
"pt-online-schema-change --alter=\"DROP COLUMN col_test\" "
+ "--host=localhost --port=3306 --user=user --password=*** --execute D=testdb,t=person",
((CommentStatement) statements[0]).getText());
}
@Override
public String getViewDefinition(String schemaName, String viewName) throws DatabaseException {
if (schemaName == null) {
schemaName = convertRequestedSchemaToSchema(null);
}
String definition =
(String)
ExecutorService.getInstance()
.getExecutor(this)
.queryForObject(new GetViewDefinitionStatement(schemaName, viewName), String.class);
if (definition == null) {
return null;
}
return CREATE_VIEW_AS_PATTERN.matcher(definition).replaceFirst("");
}
@Override
public int getNextChangeSetSequenceValue() throws LiquibaseException {
if (lastChangeSetSequenceValue == null) {
if (getConnection() == null) {
lastChangeSetSequenceValue = 0;
} else {
lastChangeSetSequenceValue =
ExecutorService.getInstance()
.getExecutor(this)
.queryForInt(new GetNextChangeSetSequenceValueStatement());
}
}
return ++lastChangeSetSequenceValue;
}
@Test
public void testUpdateSQL() {
ExecutorService.getInstance()
.setExecutor(database, new LoggingExecutor(null, new StringWriter(), database));
SqlStatement[] statements = c.generateStatements(database);
Assert.assertEquals(3, statements.length);
Assert.assertEquals(CommentStatement.class, statements[0].getClass());
Assert.assertEquals(
"pt-online-schema-change --alter=\"DROP COLUMN col_test\" "
+ "--host=localhost --port=3306 --user=user --password=*** --execute D=testdb,t=person",
((CommentStatement) statements[0]).getText());
Assert.assertEquals(CommentStatement.class, statements[1].getClass());
Assert.assertEquals(DropColumnStatement.class, statements[2].getClass());
}
@Override
protected String getConnectionCatalogName() throws DatabaseException {
if (getConnection() instanceof OfflineConnection) {
return getConnection().getCatalog();
}
try {
return ExecutorService.getInstance()
.getExecutor(this)
.queryForObject(
new RawCallStatement("select sys_context( 'userenv', 'current_schema' ) from dual"),
String.class);
} catch (Exception e) {
LogFactory.getLogger().info("Error getting default schema", e);
}
return null;
}
/**
* This method will check the database ChangeLogLock table used to keep track of if a machine is
* updating the database. If the table does not exist it will create one otherwise it will not do
* anything besides outputting a log message.
*/
@Override
public void checkDatabaseChangeLogLockTable() throws DatabaseException {
Executor executor = ExecutorService.getInstance().getExecutor(this);
if (!hasDatabaseChangeLogLockTable()) {
executor.comment("Create Database Lock Table");
executor.execute(new CreateDatabaseChangeLogLockTableStatement());
this.commit();
LogFactory.getLogger()
.debug(
"Created database lock table with name: "
+ escapeTableName(getLiquibaseSchemaName(), getDatabaseChangeLogLockTableName()));
this.hasDatabaseChangeLogLockTable = true;
}
}
@Override
public String getViewDefinition(CatalogAndSchema schema, final String viewName)
throws DatabaseException {
schema = schema.customize(this);
String definition =
(String)
ExecutorService.getInstance()
.getExecutor(this)
.queryForObject(
new GetViewDefinitionStatement(
schema.getCatalogName(), schema.getSchemaName(), viewName),
String.class);
if (definition == null) {
return null;
}
return CREATE_VIEW_AS_PATTERN.matcher(definition).replaceFirst("");
}
@Override
public void setConnection(final DatabaseConnection connection) {
super.setConnection(connection);
try {
/*
* TODO Maybe there is a better place for this.
* For each session this statement has to be executed,
* to allow newlines in quoted strings
*/
ExecutorService.getInstance()
.getExecutor(this)
.execute(new RawSqlStatement("EXECUTE PROCEDURE IFX_ALLOW_NEWLINE('T');"));
} catch (Exception e) {
throw new UnexpectedLiquibaseException(
"Could not allow newline characters in quoted strings with IFX_ALLOW_NEWLINE", e);
}
}
@Override
public void close() throws DatabaseException {
DatabaseConnection connection = getConnection();
if (connection != null) {
if (previousAutoCommit != null) {
try {
connection.setAutoCommit(previousAutoCommit);
} catch (DatabaseException e) {
LogFactory.getLogger()
.warning("Failed to restore the auto commit to " + previousAutoCommit);
throw e;
}
}
connection.close();
}
ExecutorService.getInstance().clearExecutor(this);
}
@Override
public String getViewDefinition(CatalogAndSchema schema, final String viewName)
throws DatabaseException {
schema = correctSchema(schema);
List<Map> retList =
ExecutorService.getInstance()
.getExecutor(this)
.queryForList(
new GetViewDefinitionStatement(
schema.getCatalogName(), schema.getSchemaName(), viewName));
// building the view definition from the multiple rows
StringBuilder sb = new StringBuilder();
for (Map rowMap : retList) {
String s = (String) rowMap.get("VIEWTEXT");
sb.append(s);
}
return CREATE_VIEW_AS_PATTERN.matcher(sb.toString()).replaceFirst("");
}
public Set<String> getUserDefinedTypes() {
if (userDefinedTypes == null) {
userDefinedTypes = new HashSet<String>();
if (getConnection() != null && !(getConnection() instanceof OfflineConnection)) {
try {
userDefinedTypes.addAll(
ExecutorService.getInstance()
.getExecutor(this)
.queryForList(
new RawSqlStatement("SELECT TYPE_NAME FROM USER_TYPES"), String.class));
} catch (DatabaseException e) {
// ignore error
}
}
}
return userDefinedTypes;
}
@Before
public void setup() {
c = new PerconaDropColumnChange();
c.setColumnName("col_test");
c.setTableName("person");
c.getColumns().clear();
DatabaseConnectionUtil.passwordForTests = "root";
database = new MySQLDatabase();
database.setLiquibaseSchemaName("testdb");
DatabaseConnection conn =
new MockDatabaseConnection("jdbc:mysql://user@localhost:3306/testdb", "user@localhost");
database.setConnection(conn);
ExecutorService.getInstance().setExecutor(database, new JdbcExecutor());
PTOnlineSchemaChangeStatement.available = true;
System.setProperty(Configuration.FAIL_IF_NO_PT, "false");
System.setProperty(Configuration.NO_ALTER_SQL_DRY_MODE, "false");
}
@Override
public void destroy() throws DatabaseException {
try {
if (SnapshotGeneratorFactory.getInstance()
.has(
new Table()
.setName(database.getDatabaseChangeLogLockTableName())
.setSchema(database.getLiquibaseCatalogName(), database.getLiquibaseSchemaName()),
database)) {
ExecutorService.getInstance()
.getExecutor(database)
.execute(
new DropTableStatement(
database.getLiquibaseCatalogName(),
database.getLiquibaseSchemaName(),
database.getDatabaseChangeLogLockTableName(),
false));
}
} catch (InvalidExampleException e) {
throw new UnexpectedLiquibaseException(e);
}
}
@Override
public boolean acquireLock() {
if (hasChangeLogLock) {
// We already have a lock
return true;
}
Executor executor = ExecutorService.getInstance().getExecutor(database);
try {
database.rollback();
// Ensure table created and lock record inserted
this.init();
} catch (DatabaseException de) {
throw new IllegalStateException("Failed to retrieve lock", de);
}
try {
log.debug("Trying to lock database");
executor.execute(new LockDatabaseChangeLogStatement());
log.debug("Successfully acquired database lock");
hasChangeLogLock = true;
database.setCanCacheLiquibaseTableInfo(true);
return true;
} catch (DatabaseException de) {
log.warn(
"Lock didn't yet acquired. Will possibly retry to acquire lock. Details: "
+ de.getMessage());
if (log.isTraceEnabled()) {
log.debug(de.getMessage(), de);
}
return false;
}
}
