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Liquibase.java
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Liquibase.java
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package liquibase;
import liquibase.change.CheckSum;
import liquibase.change.core.RawSQLChange;
import liquibase.changelog.*;
import liquibase.changelog.filter.*;
import liquibase.changelog.visitor.*;
import liquibase.command.CommandScope;
import liquibase.command.core.InternalDropAllCommandStep;
import liquibase.database.Database;
import liquibase.database.DatabaseConnection;
import liquibase.database.DatabaseFactory;
import liquibase.database.ObjectQuotingStrategy;
import liquibase.database.core.MSSQLDatabase;
import liquibase.diff.DiffGeneratorFactory;
import liquibase.diff.DiffResult;
import liquibase.diff.compare.CompareControl;
import liquibase.diff.output.changelog.DiffToChangeLog;
import liquibase.exception.*;
import liquibase.executor.Executor;
import liquibase.executor.ExecutorService;
import liquibase.executor.LoggingExecutor;
import liquibase.hub.*;
import liquibase.hub.listener.HubChangeExecListener;
import liquibase.hub.model.Connection;
import liquibase.hub.model.HubChangeLog;
import liquibase.hub.model.Operation;
import liquibase.lockservice.DatabaseChangeLogLock;
import liquibase.lockservice.LockService;
import liquibase.lockservice.LockServiceFactory;
import liquibase.logging.Logger;
import liquibase.logging.core.BufferedLogService;
import liquibase.logging.core.CompositeLogService;
import liquibase.parser.ChangeLogParser;
import liquibase.parser.ChangeLogParserFactory;
import liquibase.parser.core.xml.XMLChangeLogSAXParser;
import liquibase.resource.InputStreamList;
import liquibase.resource.ResourceAccessor;
import liquibase.serializer.ChangeLogSerializer;
import liquibase.snapshot.DatabaseSnapshot;
import liquibase.snapshot.InvalidExampleException;
import liquibase.snapshot.SnapshotControl;
import liquibase.snapshot.SnapshotGeneratorFactory;
import liquibase.statement.core.RawSqlStatement;
import liquibase.statement.core.UpdateStatement;
import liquibase.structure.DatabaseObject;
import liquibase.structure.core.Catalog;
import liquibase.util.LiquibaseUtil;
import liquibase.util.StreamUtil;
import liquibase.util.StringUtil;
import javax.xml.parsers.ParserConfigurationException;
import java.io.*;
import java.text.DateFormat;
import java.util.*;
import java.util.function.Supplier;
import static java.util.ResourceBundle.getBundle;
/**
* Primary facade class for interacting with Liquibase.
* The built in command line, Ant, Maven and other ways of running Liquibase are wrappers around methods in this class.
*/
public class Liquibase implements AutoCloseable {
private static final Logger LOG = Scope.getCurrentScope().getLog(Liquibase.class);
protected static final int CHANGESET_ID_NUM_PARTS = 3;
protected static final int CHANGESET_ID_AUTHOR_PART = 2;
protected static final int CHANGESET_ID_CHANGESET_PART = 1;
protected static final int CHANGESET_ID_CHANGELOG_PART = 0;
private static final ResourceBundle coreBundle = getBundle("liquibase/i18n/liquibase-core");
public static final String MSG_COULD_NOT_RELEASE_LOCK = coreBundle.getString("could.not.release.lock");
protected Database database;
private DatabaseChangeLog databaseChangeLog;
private String changeLogFile;
private final ResourceAccessor resourceAccessor;
private final ChangeLogParameters changeLogParameters;
private ChangeExecListener changeExecListener;
private ChangeLogSyncListener changeLogSyncListener;
private UUID hubConnectionId;
private enum RollbackMessageType {
WILL_ROLLBACK, ROLLED_BACK, ROLLBACK_FAILED
}
/**
* Creates a Liquibase instance for a given DatabaseConnection. The Database instance used will be found with {@link DatabaseFactory#findCorrectDatabaseImplementation(liquibase.database.DatabaseConnection)}
*
* @see DatabaseConnection
* @see Database
* @see #Liquibase(String, liquibase.resource.ResourceAccessor, liquibase.database.Database)
* @see ResourceAccessor
*/
public Liquibase(String changeLogFile, ResourceAccessor resourceAccessor, DatabaseConnection conn)
throws LiquibaseException {
this(changeLogFile, resourceAccessor, DatabaseFactory.getInstance().findCorrectDatabaseImplementation(conn));
}
/**
* Creates a Liquibase instance. The changeLogFile parameter must be a path that can be resolved by the passed
* ResourceAccessor. If windows style path separators are used for the changeLogFile, they will be standardized to
* unix style for better cross-system compatibility.
*
* @see DatabaseConnection
* @see Database
* @see ResourceAccessor
*/
public Liquibase(String changeLogFile, ResourceAccessor resourceAccessor, Database database) {
if (changeLogFile != null) {
// Convert to STANDARD / if using absolute path on windows:
this.changeLogFile = changeLogFile.replace('\\', '/');
}
this.resourceAccessor = resourceAccessor;
this.changeLogParameters = new ChangeLogParameters(database);
this.database = database;
}
public Liquibase(DatabaseChangeLog changeLog, ResourceAccessor resourceAccessor, Database database) {
this.databaseChangeLog = changeLog;
if (changeLog != null) {
this.changeLogFile = changeLog.getPhysicalFilePath();
}
if (this.changeLogFile != null) {
// Convert to STANDARD "/" if using an absolute path on Windows:
changeLogFile = changeLogFile.replace('\\', '/');
}
this.resourceAccessor = resourceAccessor;
this.database = database;
this.changeLogParameters = new ChangeLogParameters(database);
}
public UUID getHubConnectionId() {
return hubConnectionId;
}
public void setHubConnectionId(UUID hubConnectionId) {
this.hubConnectionId = hubConnectionId;
}
/**
* Return the change log file used by this Liquibase instance.
*/
public String getChangeLogFile() {
return changeLogFile;
}
/**
* Return the log used by this Liquibase instance.
*/
public Logger getLog() {
return LOG;
}
/**
* Returns the ChangeLogParameters container used by this Liquibase instance.
*/
public ChangeLogParameters getChangeLogParameters() {
return changeLogParameters;
}
/**
* Returns the Database used by this Liquibase instance.
*/
public Database getDatabase() {
return database;
}
/**
* Return ResourceAccessor used by this Liquibase instance.
*/
public ResourceAccessor getResourceAccessor() {
return resourceAccessor;
}
/**
* Convience method for {@link #update(Contexts)} that constructs the Context object from the passed string.
*/
public void update(String contexts) throws LiquibaseException {
this.update(new Contexts(contexts));
}
/**
* Executes Liquibase "update" logic which ensures that the configured {@link Database} is up to date according to
* the configured changelog file. To run in "no context mode", pass a null or empty context object.
*/
public void update(Contexts contexts) throws LiquibaseException {
update(contexts, new LabelExpression());
}
public void update(Contexts contexts, LabelExpression labelExpression) throws LiquibaseException {
update(contexts, labelExpression, true);
}
/**
*
* Liquibase update
*
* @param contexts
* @param labelExpression
* @param checkLiquibaseTables
* @throws LiquibaseException
*
*/
public void update(Contexts contexts, LabelExpression labelExpression, boolean checkLiquibaseTables) throws LiquibaseException {
runInScope(() -> {
LockService lockService = LockServiceFactory.getInstance().getLockService(database);
lockService.waitForLock();
changeLogParameters.setContexts(contexts);
changeLogParameters.setLabels(labelExpression);
Operation updateOperation = null;
BufferedLogService bufferLog = new BufferedLogService();
DatabaseChangeLog changeLog = null;
HubUpdater hubUpdater = null;
try {
changeLog = getDatabaseChangeLog();
if (checkLiquibaseTables) {
checkLiquibaseTables(true, changeLog, contexts, labelExpression);
}
ChangeLogHistoryServiceFactory.getInstance().getChangeLogService(database).generateDeploymentId();
changeLog.validate(database, contexts, labelExpression);
//
// Let the user know that they can register for Hub
//
hubUpdater = new HubUpdater(new Date(), changeLog, database);
hubUpdater.register(changeLogFile);
//
// Create or retrieve the Connection if this is not SQL generation
// Make sure the Hub is available here by checking the return
// We do not need a connection if we are using a LoggingExecutor
//
ChangeLogIterator changeLogIterator = getStandardChangelogIterator(contexts, labelExpression, changeLog);
Connection connection = getConnection(changeLog);
if (connection != null) {
updateOperation =
hubUpdater.preUpdateHub("UPDATE", "update", connection, changeLogFile, contexts, labelExpression, changeLogIterator);
}
//
// Make sure we don't already have a listener
//
if (connection != null) {
changeExecListener = new HubChangeExecListener(updateOperation, changeExecListener);
}
//
// Create another iterator to run
//
ChangeLogIterator runChangeLogIterator = getStandardChangelogIterator(contexts, labelExpression, changeLog);
CompositeLogService compositeLogService = new CompositeLogService(true, bufferLog);
Scope.child(Scope.Attr.logService.name(), compositeLogService, () -> {
runChangeLogIterator.run(createUpdateVisitor(), new RuntimeEnvironment(database, contexts, labelExpression));
});
//
// Update Hub with the operation information
//
hubUpdater.postUpdateHub(updateOperation, bufferLog);
} catch (Throwable e) {
if (hubUpdater != null) {
hubUpdater.postUpdateHubExceptionHandling(updateOperation, bufferLog, e.getMessage());
}
throw e;
} finally {
database.setObjectQuotingStrategy(ObjectQuotingStrategy.LEGACY);
try {
lockService.releaseLock();
} catch (LockException e) {
LOG.severe(MSG_COULD_NOT_RELEASE_LOCK, e);
}
resetServices();
setChangeExecListener(null);
}
});
}
/**
*
* Create or retrieve the Connection object
*
* @param changeLog Database changelog
* @return Connection
* @throws LiquibaseHubException Thrown by HubService
*
*/
public Connection getConnection(DatabaseChangeLog changeLog) throws LiquibaseHubException {
//
// If our current Executor is a LoggingExecutor then just return since we will not update Hub
//
Executor executor = Scope.getCurrentScope().getSingleton(ExecutorService.class).getExecutor("jdbc", database);
if (executor instanceof LoggingExecutor) {
return null;
}
String changeLogId = changeLog.getChangeLogId();
HubUpdater hubUpdater = new HubUpdater(new Date(), changeLog, database);
if (hubUpdater.hubIsNotAvailable(changeLogId)) {
if (StringUtil.isNotEmpty(HubConfiguration.LIQUIBASE_HUB_API_KEY.getCurrentValue()) && changeLogId == null) {
String message =
"An API key was configured, but no changelog ID exists.\n" +
"No operations will be reported. Register this changelog with Liquibase Hub to generate free deployment reports.\n" +
"Learn more at https://hub.liquibase.com.";
Scope.getCurrentScope().getUI().sendMessage("WARNING: " + message);
Scope.getCurrentScope().getLog(getClass()).warning(message);
}
return null;
}
//
// Warn about the situation where there is a changeLog ID, but no API key
//
if (StringUtil.isEmpty(HubConfiguration.LIQUIBASE_HUB_API_KEY.getCurrentValue()) && changeLogId != null) {
String message = "The changelog ID '" + changeLogId + "' was found, but no API Key exists.\n" +
"No operations will be reported. Simply add a liquibase.hub.apiKey setting to generate free deployment reports.\n" +
"Learn more at https://hub.liquibase.com.";
Scope.getCurrentScope().getUI().sendMessage("WARNING: " + message);
Scope.getCurrentScope().getLog(getClass()).warning(message);
return null;
}
Connection connection;
final HubService hubService = Scope.getCurrentScope().getSingleton(HubServiceFactory.class).getService();
if (getHubConnectionId() == null) {
HubChangeLog hubChangeLog = hubService.getHubChangeLog(UUID.fromString(changeLogId), "*");
if (hubChangeLog == null) {
Scope.getCurrentScope().getLog(getClass()).warning(
"Retrieving Hub Change Log failed for Changelog ID: " + changeLogId);
return null;
}
if (hubChangeLog.isDeleted()) {
//
// Complain and stop the operation
//
String message =
"\n" +
"The operation did not complete and will not be reported to Hub because the\n" + "" +
"registered changelog has been deleted by someone in your organization.\n" +
"Learn more at http://hub.liquibase.com.";
throw new LiquibaseHubException(message);
}
Connection exampleConnection = new Connection();
exampleConnection.setProject(hubChangeLog.getProject());
exampleConnection.setJdbcUrl(Liquibase.this.database.getConnection().getURL());
connection = hubService.getConnection(exampleConnection, true);
setHubConnectionId(connection.getId());
} else {
connection = hubService.getConnection(new Connection().setId(getHubConnectionId()), true);
}
return connection;
}
public DatabaseChangeLog getDatabaseChangeLog() throws LiquibaseException {
return getDatabaseChangeLog(false);
}
/**
* @param shouldWarnOnMismatchedXsdVersion When set to true, a warning will be printed to the console if the XSD
* version used does not match the version of Liquibase. If "latest" is used
* as the XSD version, no warning is printed. If the changelog is not xml
* format, no warning is printed.
*/
private DatabaseChangeLog getDatabaseChangeLog(boolean shouldWarnOnMismatchedXsdVersion) throws LiquibaseException {
if (databaseChangeLog == null && changeLogFile != null) {
ChangeLogParser parser = ChangeLogParserFactory.getInstance().getParser(changeLogFile, resourceAccessor);
if (parser instanceof XMLChangeLogSAXParser) {
((XMLChangeLogSAXParser) parser).setShouldWarnOnMismatchedXsdVersion(shouldWarnOnMismatchedXsdVersion);
}
databaseChangeLog = parser.parse(changeLogFile, changeLogParameters, resourceAccessor);
}
return databaseChangeLog;
}
protected UpdateVisitor createUpdateVisitor() {
return new UpdateVisitor(database, changeExecListener);
}
protected RollbackVisitor createRollbackVisitor() {
return new RollbackVisitor(database, changeExecListener);
}
protected ChangeLogIterator getStandardChangelogIterator(Contexts contexts, LabelExpression labelExpression,
DatabaseChangeLog changeLog) throws DatabaseException {
return new ChangeLogIterator(changeLog,
new ShouldRunChangeSetFilter(database),
new ContextChangeSetFilter(contexts),
new LabelChangeSetFilter(labelExpression),
new DbmsChangeSetFilter(database),
new IgnoreChangeSetFilter());
}
protected ChangeLogIterator buildChangeLogIterator(String tag, DatabaseChangeLog changeLog, Contexts contexts,
LabelExpression labelExpression) throws DatabaseException {
if (tag == null) {
return new ChangeLogIterator(changeLog,
new NotRanChangeSetFilter(database.getRanChangeSetList()),
new ContextChangeSetFilter(contexts),
new LabelChangeSetFilter(labelExpression),
new IgnoreChangeSetFilter(),
new DbmsChangeSetFilter(database));
} else {
List<RanChangeSet> ranChangeSetList = database.getRanChangeSetList();
return new ChangeLogIterator(changeLog,
new NotRanChangeSetFilter(database.getRanChangeSetList()),
new ContextChangeSetFilter(contexts),
new LabelChangeSetFilter(labelExpression),
new IgnoreChangeSetFilter(),
new DbmsChangeSetFilter(database),
new UpToTagChangeSetFilter(tag, ranChangeSetList));
}
}
public void update(String contexts, Writer output) throws LiquibaseException {
this.update(new Contexts(contexts), output);
}
public void update(Contexts contexts, Writer output) throws LiquibaseException {
update(contexts, new LabelExpression(), output);
}
public void update(Contexts contexts, LabelExpression labelExpression, Writer output) throws LiquibaseException {
update(contexts, labelExpression, output, true);
}
public void update(Contexts contexts, LabelExpression labelExpression, Writer output, boolean checkLiquibaseTables)
throws LiquibaseException {
changeLogParameters.setContexts(contexts);
changeLogParameters.setLabels(labelExpression);
runInScope(new Scope.ScopedRunner() {
@Override
public void run() throws Exception {
/* We have no other choice than to save the current Executer here. */
@SuppressWarnings("squid:S1941")
Executor oldTemplate = getAndReplaceJdbcExecutor(output);
outputHeader("Update Database Script");
LockService lockService = LockServiceFactory.getInstance().getLockService(database);
lockService.waitForLock();
update(contexts, labelExpression, checkLiquibaseTables);
flushOutputWriter(output);
Scope.getCurrentScope().getSingleton(ExecutorService.class).setExecutor("jdbc", database, oldTemplate);
}
});
}
public void update(int changesToApply, String contexts) throws LiquibaseException {
update(changesToApply, new Contexts(contexts), new LabelExpression());
}
/**
*
* Update to count
*
* @param changesToApply
* @param contexts
* @param labelExpression
* @throws LiquibaseException
*
*/
public void update(int changesToApply, Contexts contexts, LabelExpression labelExpression)
throws LiquibaseException {
changeLogParameters.setContexts(contexts);
changeLogParameters.setLabels(labelExpression);
runInScope(new Scope.ScopedRunner() {
@Override
public void run() throws Exception {
LockService lockService = LockServiceFactory.getInstance().getLockService(database);
lockService.waitForLock();
Operation updateOperation = null;
BufferedLogService bufferLog = new BufferedLogService();
DatabaseChangeLog changeLog = null;
HubUpdater hubUpdater = null;
try {
changeLog = getDatabaseChangeLog();
checkLiquibaseTables(true, changeLog, contexts, labelExpression);
ChangeLogHistoryServiceFactory.getInstance().getChangeLogService(database).generateDeploymentId();
changeLog.validate(database, contexts, labelExpression);
//
// Let the user know that they can register for Hub
//
hubUpdater = new HubUpdater(new Date(), changeLog, database);
hubUpdater.register(changeLogFile);
//
// Create an iterator which will be used with a ListVisitor
// to grab the list of change sets for the update
//
ChangeLogIterator listLogIterator = new ChangeLogIterator(changeLog,
new ShouldRunChangeSetFilter(database),
new ContextChangeSetFilter(contexts),
new LabelChangeSetFilter(labelExpression),
new DbmsChangeSetFilter(database),
new IgnoreChangeSetFilter(),
new CountChangeSetFilter(changesToApply));
//
// Create or retrieve the Connection
// Make sure the Hub is available here by checking the return
//
Connection connection = getConnection(changeLog);
if (connection != null) {
updateOperation =
hubUpdater.preUpdateHub("UPDATE", "update-count", connection, changeLogFile, contexts, labelExpression, listLogIterator);
}
//
// If we are doing Hub then set up a HubChangeExecListener
//
if (connection != null) {
changeExecListener = new HubChangeExecListener(updateOperation, changeExecListener);
}
//
// Create another iterator to run
//
ChangeLogIterator runChangeLogIterator = new ChangeLogIterator(changeLog,
new ShouldRunChangeSetFilter(database),
new ContextChangeSetFilter(contexts),
new LabelChangeSetFilter(labelExpression),
new DbmsChangeSetFilter(database),
new IgnoreChangeSetFilter(),
new CountChangeSetFilter(changesToApply));
CompositeLogService compositeLogService = new CompositeLogService(true, bufferLog);
Scope.child(Scope.Attr.logService.name(), compositeLogService, () -> {
runChangeLogIterator.run(createUpdateVisitor(), new RuntimeEnvironment(database, contexts, labelExpression));
});
hubUpdater.postUpdateHub(updateOperation, bufferLog);
}
catch (Throwable e) {
if (hubUpdater != null) {
hubUpdater.postUpdateHubExceptionHandling(updateOperation, bufferLog, e.getMessage());
}
throw e;
} finally {
database.setObjectQuotingStrategy(ObjectQuotingStrategy.LEGACY);
try {
lockService.releaseLock();
} catch (LockException e) {
LOG.severe(MSG_COULD_NOT_RELEASE_LOCK, e);
}
resetServices();
setChangeExecListener(null);
}
}
});
}
public void update(String tag, String contexts) throws LiquibaseException {
update(tag, new Contexts(contexts), new LabelExpression());
}
public void update(String tag, Contexts contexts) throws LiquibaseException {
update(tag, contexts, new LabelExpression());
}
/**
*
* Update to tag
*
* @param tag Tag to update for
* @param contexts
* @param labelExpression
* @throws LiquibaseException
*
*/
public void update(String tag, Contexts contexts, LabelExpression labelExpression) throws LiquibaseException {
if (tag == null) {
update(contexts, labelExpression);
return;
}
changeLogParameters.setContexts(contexts);
changeLogParameters.setLabels(labelExpression);
runInScope(new Scope.ScopedRunner() {
@Override
public void run() throws Exception {
LockService lockService = LockServiceFactory.getInstance().getLockService(database);
lockService.waitForLock();
HubUpdater hubUpdater = null;
Operation updateOperation = null;
BufferedLogService bufferLog = new BufferedLogService();
DatabaseChangeLog changeLog = null;
try {
changeLog = getDatabaseChangeLog();
checkLiquibaseTables(true, changeLog, contexts, labelExpression);
ChangeLogHistoryServiceFactory.getInstance().getChangeLogService(database).generateDeploymentId();
changeLog.validate(database, contexts, labelExpression);
//
// Let the user know that they can register for Hub
//
hubUpdater = new HubUpdater(new Date(), changeLog, database);
hubUpdater.register(changeLogFile);
//
// Create an iterator which will be used with a ListVisitor
// to grab the list of change sets for the update
//
List<RanChangeSet> ranChangeSetList = database.getRanChangeSetList();
ChangeLogIterator listLogIterator = new ChangeLogIterator(changeLog,
new ShouldRunChangeSetFilter(database),
new ContextChangeSetFilter(contexts),
new LabelChangeSetFilter(labelExpression),
new DbmsChangeSetFilter(database),
new IgnoreChangeSetFilter(),
new UpToTagChangeSetFilter(tag, ranChangeSetList));
//
// Create or retrieve the Connection
// Make sure the Hub is available here by checking the return
//
Connection connection = getConnection(changeLog);
if (connection != null) {
updateOperation =
hubUpdater.preUpdateHub("UPDATE", "update-to-tag", connection, changeLogFile, contexts, labelExpression, listLogIterator);
}
//
// Check for an already existing Listener
//
if (connection != null) {
changeExecListener = new HubChangeExecListener(updateOperation, changeExecListener);
}
//
// Create another iterator to run
//
ChangeLogIterator runChangeLogIterator = new ChangeLogIterator(changeLog,
new ShouldRunChangeSetFilter(database),
new ContextChangeSetFilter(contexts),
new LabelChangeSetFilter(labelExpression),
new DbmsChangeSetFilter(database),
new IgnoreChangeSetFilter(),
new UpToTagChangeSetFilter(tag, ranChangeSetList));
CompositeLogService compositeLogService = new CompositeLogService(true, bufferLog);
Scope.child(Scope.Attr.logService.name(), compositeLogService, () -> {
runChangeLogIterator.run(createUpdateVisitor(), new RuntimeEnvironment(database, contexts, labelExpression));
});
hubUpdater.postUpdateHub(updateOperation, bufferLog);
}
catch (Throwable e) {
if (hubUpdater != null) {
hubUpdater.postUpdateHubExceptionHandling(updateOperation, bufferLog, e.getMessage());
}
throw e;
} finally {
database.setObjectQuotingStrategy(ObjectQuotingStrategy.LEGACY);
try {
lockService.releaseLock();
} catch (LockException e) {
LOG.severe(MSG_COULD_NOT_RELEASE_LOCK, e);
}
resetServices();
setChangeExecListener(null);
}
}
});
}
public void update(int changesToApply, String contexts, Writer output) throws LiquibaseException {
this.update(changesToApply, new Contexts(contexts), new LabelExpression(), output);
}
public void update(int changesToApply, Contexts contexts, LabelExpression labelExpression, Writer output) throws LiquibaseException {
changeLogParameters.setContexts(contexts);
changeLogParameters.setLabels(labelExpression);
runInScope(new Scope.ScopedRunner() {
@Override
public void run() throws Exception {
/* We have no other choice than to save the current Executer here. */
@SuppressWarnings("squid:S1941")
Executor oldTemplate = getAndReplaceJdbcExecutor(output);
outputHeader("Update " + changesToApply + " Change Sets Database Script");
update(changesToApply, contexts, labelExpression);
flushOutputWriter(output);
resetServices();
Scope.getCurrentScope().getSingleton(ExecutorService.class).setExecutor("jdbc", database, oldTemplate);
}
});
}
public void update(String tag, String contexts, Writer output) throws LiquibaseException {
update(tag, new Contexts(contexts), new LabelExpression(), output);
}
public void update(String tag, Contexts contexts, Writer output) throws LiquibaseException {
update(tag, contexts, new LabelExpression(), output);
}
public void update(String tag, Contexts contexts, LabelExpression labelExpression, Writer output)
throws LiquibaseException {
if (tag == null) {
update(contexts, labelExpression, output);
return;
}
changeLogParameters.setContexts(contexts);
changeLogParameters.setLabels(labelExpression);
runInScope(new Scope.ScopedRunner() {
@Override
public void run() throws Exception {
/* We have no other choice than to save the current Executer here. */
@SuppressWarnings("squid:S1941")
Executor oldTemplate = getAndReplaceJdbcExecutor(output);
outputHeader("Update to '" + tag + "' Database Script");
update(tag, contexts, labelExpression);
flushOutputWriter(output);
resetServices();
Scope.getCurrentScope().getSingleton(ExecutorService.class).setExecutor("jdbc", database, oldTemplate);
}
});
}
public void outputHeader(String message) throws DatabaseException {
Executor executor = Scope.getCurrentScope().getSingleton(ExecutorService.class).getExecutor("logging", database);
executor.comment("*********************************************************************");
executor.comment(message);
executor.comment("*********************************************************************");
executor.comment("Change Log: " + changeLogFile);
executor.comment("Ran at: " +
DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT).format(new Date())
);
DatabaseConnection connection = getDatabase().getConnection();
if (connection != null) {
executor.comment("Against: " + connection.getConnectionUserName() + "@" + connection.getURL());
}
executor.comment("Liquibase version: " + LiquibaseUtil.getBuildVersionInfo());
executor.comment("*********************************************************************" +
StreamUtil.getLineSeparator()
);
if ((database instanceof MSSQLDatabase) && (database.getDefaultCatalogName() != null)) {
executor.execute(new RawSqlStatement("USE " +
database.escapeObjectName(database.getDefaultCatalogName(), Catalog.class) + ";")
);
}
}
public void rollback(int changesToRollback, String contexts, Writer output) throws LiquibaseException {
rollback(changesToRollback, null, contexts, output);
}
public void rollback(int changesToRollback, Contexts contexts, Writer output) throws LiquibaseException {
rollback(changesToRollback, null, contexts, output);
}
public void rollback(int changesToRollback, Contexts contexts, LabelExpression labelExpression, Writer output)
throws LiquibaseException {
rollback(changesToRollback, null, contexts, labelExpression, output);
}
public void rollback(int changesToRollback, String rollbackScript, String contexts, Writer output)
throws LiquibaseException {
rollback(changesToRollback, rollbackScript, new Contexts(contexts), output);
}
public void rollback(int changesToRollback, String rollbackScript, Contexts contexts, Writer output)
throws LiquibaseException {
rollback(changesToRollback, rollbackScript, contexts, new LabelExpression(), output);
}
public void rollback(int changesToRollback, String rollbackScript, Contexts contexts,
LabelExpression labelExpression, Writer output) throws LiquibaseException {
changeLogParameters.setContexts(contexts);
changeLogParameters.setLabels(labelExpression);
runInScope(new Scope.ScopedRunner() {
@Override
public void run() throws Exception {
/* We have no other choice than to save the current Executer here. */
@SuppressWarnings("squid:S1941")
Executor oldTemplate = getAndReplaceJdbcExecutor(output);
outputHeader("Rollback " + changesToRollback + " Change(s) Script");
rollback(changesToRollback, rollbackScript, contexts, labelExpression);
flushOutputWriter(output);
Scope.getCurrentScope().getSingleton(ExecutorService.class).setExecutor("jdbc", database, oldTemplate);
resetServices();
}
});
}
public void rollback(int changesToRollback, String contexts) throws LiquibaseException {
rollback(changesToRollback, null, contexts);
}
public void rollback(int changesToRollback, Contexts contexts, LabelExpression labelExpression)
throws LiquibaseException {
rollback(changesToRollback, null, contexts, labelExpression);
}
public void rollback(int changesToRollback, String rollbackScript, String contexts) throws LiquibaseException {
rollback(changesToRollback, rollbackScript, new Contexts(contexts), new LabelExpression());
}
/**
*
* Rollback count
*
* @param changesToRollback
* @param rollbackScript
* @param contexts
* @param labelExpression
* @throws LiquibaseException
*/
public void rollback(int changesToRollback, String rollbackScript, Contexts contexts,
LabelExpression labelExpression) throws LiquibaseException {
changeLogParameters.setContexts(contexts);
changeLogParameters.setLabels(labelExpression);
runInScope(new Scope.ScopedRunner() {
@Override
public void run() throws Exception {
LockService lockService = LockServiceFactory.getInstance().getLockService(database);
lockService.waitForLock();
Operation rollbackOperation = null;
BufferedLogService bufferLog = new BufferedLogService();
DatabaseChangeLog changeLog = null;
Date startTime = new Date();
HubUpdater hubUpdater = null;
try {
changeLog = getDatabaseChangeLog();
checkLiquibaseTables(false, changeLog, contexts, labelExpression);
changeLog.validate(database, contexts, labelExpression);
//
// Let the user know that they can register for Hub
//
hubUpdater = new HubUpdater(startTime, changeLog, database);
hubUpdater.register(changeLogFile);
//
// Create an iterator which will be used with a ListVisitor
// to grab the list of change sets for the update
//
ChangeLogIterator listLogIterator = new ChangeLogIterator(database.getRanChangeSetList(), changeLog,
new AlreadyRanChangeSetFilter(database.getRanChangeSetList()),
new ContextChangeSetFilter(contexts),
new LabelChangeSetFilter(labelExpression),
new DbmsChangeSetFilter(database),
new IgnoreChangeSetFilter(),
new CountChangeSetFilter(changesToRollback));
//
// Create or retrieve the Connection
// Make sure the Hub is available here by checking the return
//
Connection connection = getConnection(changeLog);
if (connection != null) {
rollbackOperation = hubUpdater.preUpdateHub("ROLLBACK", "rollback-count", connection, changeLogFile, contexts, labelExpression, listLogIterator);
}
//
// If we are doing Hub then set up a HubChangeExecListener
//
if (connection != null) {
changeExecListener = new HubChangeExecListener(rollbackOperation, changeExecListener);
}
//
// Create another iterator to run
//
ChangeLogIterator logIterator = new ChangeLogIterator(database.getRanChangeSetList(), changeLog,
new AlreadyRanChangeSetFilter(database.getRanChangeSetList()),
new ContextChangeSetFilter(contexts),
new LabelChangeSetFilter(labelExpression),
new DbmsChangeSetFilter(database),
new IgnoreChangeSetFilter(),
new CountChangeSetFilter(changesToRollback));
CompositeLogService compositeLogService = new CompositeLogService(true, bufferLog);
if (rollbackScript == null) {
Scope.child(Scope.Attr.logService.name(), compositeLogService, () -> {
logIterator.run(createRollbackVisitor(), new RuntimeEnvironment(database, contexts, labelExpression));
});
} else {
List<ChangeSet> changeSets = determineRollbacks(logIterator, contexts, labelExpression);
Map<String, Object> values = new HashMap<>();
values.put(Scope.Attr.logService.name(), compositeLogService);
values.put(BufferedLogService.class.getName(), bufferLog);
Scope.child(values, () -> {
executeRollbackScript(rollbackScript, changeSets, contexts, labelExpression);
});
removeRunStatus(changeSets, contexts, labelExpression);
}
hubUpdater.postUpdateHub(rollbackOperation, bufferLog);
}
catch (Throwable t) {
if (hubUpdater != null) {
hubUpdater.postUpdateHubExceptionHandling(rollbackOperation, bufferLog, t.getMessage());
}
throw t;
} finally {
try {
lockService.releaseLock();
} catch (LockException e) {
LOG.severe("Error releasing lock", e);
}
resetServices();
setChangeExecListener(null);
}
}
});
}
private List<ChangeSet> determineRollbacks(ChangeLogIterator logIterator, Contexts contexts, LabelExpression labelExpression)
throws LiquibaseException {
List<ChangeSet> changeSetsToRollback = new ArrayList<>();
logIterator.run(new ChangeSetVisitor() {
@Override
public Direction getDirection() {
return Direction.REVERSE;
}
@Override
public void visit(ChangeSet changeSet, DatabaseChangeLog databaseChangeLog, Database database,
Set<ChangeSetFilterResult> filterResults) throws LiquibaseException {
changeSetsToRollback.add(changeSet);
}
}, new RuntimeEnvironment(database, contexts, labelExpression));
return changeSetsToRollback;
}
protected void removeRunStatus(List<ChangeSet> changeSets, Contexts contexts, LabelExpression labelExpression)
throws LiquibaseException {
for (ChangeSet changeSet : changeSets) {
database.removeRanStatus(changeSet);
database.commit();
}
}
protected void executeRollbackScript(String rollbackScript, List<ChangeSet> changeSets, Contexts contexts, LabelExpression labelExpression) throws LiquibaseException {
final Executor executor = Scope.getCurrentScope().getSingleton(ExecutorService.class).getExecutor("jdbc", database);
String rollbackScriptContents;
try (InputStream stream = resourceAccessor.openStream(null, rollbackScript)) {
if (stream == null) {
throw new LiquibaseException("WARNING: The rollback script '" + rollbackScript + "' was not located. Please check your parameters. No rollback was performed");
}
rollbackScriptContents = StreamUtil.readStreamAsString(stream);
} catch (IOException e) {
throw new LiquibaseException("Error reading rollbackScript " + executor + ": " + e.getMessage());
}
//
// Expand changelog properties
//
changeLogParameters.setContexts(contexts);
changeLogParameters.setLabels(labelExpression);
DatabaseChangeLog changelog = getDatabaseChangeLog();