@Override
public void destroy() {
super.destroy();
Enumeration<Driver> e = DriverManager.getDrivers();
while (e.hasMoreElements()) {
Driver driver = e.nextElement();
try {
if (driver.getClass().getClassLoader() == getClass().getClassLoader())
DriverManager.deregisterDriver(driver);
} catch (SQLException e1) {
LOG.logError("Cannot unload driver: " + driver);
}
}
LogFactory.releaseAll();
LogManager.shutdown();
// SLF4JLogFactory.releaseAll(); // should be the same as the LogFactory.releaseAll call
Iterator<Class<?>> i = IIORegistry.getDefaultInstance().getCategories();
while (i.hasNext()) {
Class<?> c = i.next();
Iterator<?> k = IIORegistry.getDefaultInstance().getServiceProviders(c, false);
while (k.hasNext()) {
Object o = k.next();
if (o.getClass().getClassLoader() == getClass().getClassLoader()) {
IIORegistry.getDefaultInstance().deregisterServiceProvider(o);
LOG.logDebug("Deregistering JAI driver ", o.getClass());
}
}
}
Introspector.flushCaches();
// just clear the configurations for now, it does not hurt
CRSConfiguration.DEFINED_CONFIGURATIONS.clear();
}
/*
* (non-Javadoc)
*
* @see
* com.absir.bean.config.IBeanFactoryStopping#stopping(com.absir.bean.basis
* .BeanFactory)
*/
@Override
public void stopping(BeanFactory beanFactory) {
LOGGER.info("stop begin");
stopConnectionProvider(sessionFactory);
for (SessionFactoryImpl sessionFactory : sessionFactoryMapName.keySet()) {
stopConnectionProvider(sessionFactory);
}
Environment.setStarted(false);
if (!driverShared) {
Enumeration<Driver> enumeration = DriverManager.getDrivers();
while (enumeration.hasMoreElements()) {
Driver driver = enumeration.nextElement();
try {
DriverManager.deregisterDriver(driver);
} catch (Exception e) {
LOGGER.error("deregisterDriver " + driver, e);
}
}
}
if (driverStoppingCommand != null) {
for (String stoppingCommand : driverStoppingCommand) {
KernelClass.invokeCommandString(stoppingCommand);
}
driverStoppingCommand = null;
}
LOGGER.info("stop complete");
}
public void contextDestroyed(ServletContextEvent sce) {
// This manually deregisters JDBC driver, which prevents Tomcat 7 from complaining about memory
// leaks wrto this class
Enumeration<Driver> drivers = DriverManager.getDrivers();
while (drivers.hasMoreElements()) {
Driver driver = drivers.nextElement();
try {
DriverManager.deregisterDriver(driver);
LOG.info(String.format("deregistering jdbc driver: %s", driver));
} catch (SQLException e) {
LOG.warn(String.format("Error deregistering driver %s", driver), e);
}
}
// Try to kill the TOMCAT abandoned connection clean up thread
// to prevent it from holding the whole context in memory causing
// a leak
Set<Thread> threadSet = Thread.getAllStackTraces().keySet();
Thread[] threadArray = threadSet.toArray(new Thread[threadSet.size()]);
for (Thread t : threadArray) {
if (t.getName().contains("Abandoned connection cleanup thread")) {
synchronized (t) {
t.stop(); // don't complain, it works
}
}
}
}
@Override
void closeConnection(final Connection connection) throws SQLException {
if (aggressiveCompact) {
CallableStatement statement = null;
try {
LOCK.writeLock().lock();
final java.util.Date start = new java.util.Date();
LOGGER.trace("beginning shutdown compact");
statement = dbConnection.prepareCall("SHUTDOWN COMPACT");
statement.execute();
LOGGER.trace(
"completed shutdown compact in " + TimeDuration.fromCurrent(start).asCompactString());
} catch (SQLException ex) {
LOGGER.error("error during shutdown compact: " + ex.getMessage());
} finally {
close(statement);
LOCK.writeLock().unlock();
}
}
try {
connection.close();
if (driver != null) {
DriverManager.deregisterDriver(driver);
driver = null;
}
} catch (Exception e) {
LOGGER.error("error during H2 shutdown: " + e.getMessage());
}
}
/**
* Context destroyed.
*
* @param sce the sce
*/
@Override
public void contextDestroyed(ServletContextEvent sce) {
ConnectionPool connectionPool;
connectionPool = ConnectionPool.getInstance();
connectionPool.shutDown();
// ShutDown Abandoned Connection : memory leaks after Tomcat stops
try {
AbandonedConnectionCleanupThread.shutdown();
LOG.info("Abandoned connection shut down!");
} catch (InterruptedException e) {
LOG.warn("SEVERE problem cleaning up: " + e.getMessage());
e.printStackTrace();
}
// This manually deregisters JDBC driver, which prevents Tomcat from complaining about memory
// leaks this class
Enumeration<Driver> drivers = DriverManager.getDrivers();
while (drivers.hasMoreElements()) {
Driver driver = drivers.nextElement();
try {
DriverManager.deregisterDriver(driver);
LOG.info(String.format("deregistering jdbc driver: %s ", driver));
} catch (SQLException e) {
LOG.error(String.format("Error deregistering driver: %s ", driver), e);
}
}
}
/**
* Clearing the in-memory configuration parameters, we will receive notification that the servlet
* context is about to be shut down
*/
@Override
public void contextDestroyed(ServletContextEvent sce) {
synchronized (servletContext) {
logger.info("Webapp shutdown");
// XXX Paul: grabbed this from
// http://opensource.atlassian.com/confluence/spring/display/DISC/Memory+leak+-+classloader+won%27t+let+go
// in hopes that we can clear all the issues with J2EE containers
// during shutdown
try {
ServletContext ctx = sce.getServletContext();
// prepare spring for shutdown
Introspector.flushCaches();
// dereg any drivers
for (Enumeration e = DriverManager.getDrivers(); e.hasMoreElements(); ) {
Driver driver = (Driver) e.nextElement();
if (driver.getClass().getClassLoader() == getClass().getClassLoader()) {
DriverManager.deregisterDriver(driver);
}
}
// shutdown jmx
JMXAgent.shutdown();
// shutdown the persistence thread
FilePersistenceThread persistenceThread = FilePersistenceThread.getInstance();
if (persistenceThread != null) {
persistenceThread.shutdown();
}
// shutdown spring
Object attr =
ctx.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
if (attr != null) {
// get web application context from the servlet context
ConfigurableWebApplicationContext applicationContext =
(ConfigurableWebApplicationContext) attr;
ConfigurableBeanFactory factory = applicationContext.getBeanFactory();
// for (String scope : factory.getRegisteredScopeNames()) {
// logger.debug("Registered scope: " + scope);
// }
try {
for (String singleton : factory.getSingletonNames()) {
logger.debug("Registered singleton: " + singleton);
factory.destroyScopedBean(singleton);
}
} catch (RuntimeException e) {
}
factory.destroySingletons();
ctx.removeAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
applicationContext.close();
}
getContextLoader().closeWebApplicationContext(ctx);
// org.apache.commons.logging.LogFactory.releaseAll();
// org.apache.log4j.LogManager.getLoggerRepository().shutdown();
// org.apache.log4j.LogManager.shutdown();
} catch (Throwable e) {
e.printStackTrace();
}
}
}
/** INTERNAL */
public static synchronized void unload() {
try {
if (registered) {
registered = false;
DriverManager.deregisterDriver(INSTANCE);
}
} catch (SQLException e) {
TraceSystem.traceThrowable(e);
}
}
public static void unloadDrivers() {
Enumeration<Driver> drivers = DriverManager.getDrivers();
try {
while (drivers.hasMoreElements()) {
Driver driver = drivers.nextElement();
DriverManager.deregisterDriver(driver);
}
} catch (Exception e) {
log.error("Error unloading the JDBC Drivers", e);
}
}
private static void deregisterDrivers() {
Enumeration<Driver> drivers = DriverManager.getDrivers();
while (drivers.hasMoreElements()) {
Driver driver = drivers.nextElement();
try {
DriverManager.deregisterDriver(driver);
} catch (SQLException e) {
log.warn("卸载JDBC驱动失败：" + driver, e);
log.warn("Fail to uninstall JDBC driver：" + driver, e, Locale.ENGLISH);
}
}
}
@AfterClass
public static void doTeardown() throws Exception {
if (driver != null) {
try {
driver.close();
} finally {
PhoenixTestDriver driver = BaseConnectionlessQueryTest.driver;
BaseConnectionlessQueryTest.driver = null;
DriverManager.deregisterDriver(driver);
}
}
}
public void contextDestroyed(ServletContextEvent event) {
try {
Introspector.flushCaches();
for (Enumeration e = DriverManager.getDrivers(); e.hasMoreElements(); ) {
Driver driver = (Driver) e.nextElement();
if (driver.getClass().getClassLoader() == getClass().getClassLoader()) {
DriverManager.deregisterDriver(driver);
LOG.debug("deregistering driver: " + driver.getClass().getName());
}
}
} catch (Throwable e) {
LOG.error("Failled to cleanup ClassLoader for webapp", e);
}
}
// Close and unregister the driver.
protected static boolean destroyDriver(Driver driver) {
if (driver != null) {
assert (driver instanceof PhoenixTestDriver);
PhoenixTestDriver pdriver = (PhoenixTestDriver) driver;
try {
try {
pdriver.close();
return true;
} finally {
DriverManager.deregisterDriver(driver);
}
} catch (Exception e) {
logger.warn("Unable to close registered driver: " + driver, e);
}
}
return false;
}
// We need to deregister an already existing driver in order
// to register a new one. We need to create a new one so that
// we register the new one with the new Configuration instance.
// Otherwise, we get connection errors because the prior one
// is no longer associated with the miniCluster.
protected static synchronized void destroyDriver() {
if (driver != null) {
driverRefCount--;
if (driverRefCount == 0) {
try {
try {
driver.close();
} finally {
try {
DriverManager.deregisterDriver(driver);
} finally {
driver = null;
}
}
} catch (SQLException e) {
}
}
}
}
private void deregisterJdbcDrivers() {
final Enumeration<Driver> driverEnumeration = DriverManager.getDrivers();
final List<Driver> drivers = new ArrayList<Driver>();
while (driverEnumeration.hasMoreElements()) {
drivers.add(driverEnumeration.nextElement());
}
for (Driver driver : drivers) {
if (driver.getClass().getClassLoader() != getClass().getClassLoader()) {
continue;
}
try {
DriverManager.deregisterDriver(driver);
deregisterOracleDiagnosabilityMBean();
} catch (Throwable e) {
}
}
}
@Override
public void contextDestroyed(ServletContextEvent contextEvent) {
// stop polling TimerTask
polling.cancel();
// closing Hibernate SessionFactory:
HibernateUtil.getSessionFactory().close();
// unregisters JDBC driver
Enumeration<Driver> drivers = DriverManager.getDrivers();
while (drivers.hasMoreElements()) {
Driver d = drivers.nextElement();
try {
DriverManager.deregisterDriver(d);
} catch (SQLException e) {
LOGGER.warning("Error deregistering driver '" + d.getClass().getName() + "'!");
}
}
}
@Override
public void contextDestroyed(ServletContextEvent arg0) {
LOGGER.info("Destroying webapp..");
Enumeration<Driver> drivers = DriverManager.getDrivers();
while (drivers.hasMoreElements()) {
Driver driver = drivers.nextElement();
ClassLoader driverclassLoader = driver.getClass().getClassLoader();
ClassLoader thisClassLoader = this.getClass().getClassLoader();
if (driverclassLoader != null
&& thisClassLoader != null
&& driverclassLoader.equals(thisClassLoader)) {
try {
LOGGER.info("Deregistering: " + driver);
DriverManager.deregisterDriver(driver);
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
// 关闭所有连接,撤销驱动程序的注册
public synchronized void release() {
// 等待直到最后一个客户程序调用
if (--clients != 0) {
return;
}
Enumeration allPools = pools.elements();
while (allPools.hasMoreElements()) {
DBConnectionPool pool = (DBConnectionPool) allPools.nextElement();
pool.release();
}
Enumeration allDrivers = drivers.elements();
while (allDrivers.hasMoreElements()) {
Driver driver = (Driver) allDrivers.nextElement();
try {
DriverManager.deregisterDriver(driver);
log("撤销JDBC驱动程序 " + driver.getClass().getName() + "的注册");
} catch (SQLException e) {
log(e, "无法撤销下列JDBC驱动程序的注册: " + driver.getClass().getName());
}
}
}
/**
* Deregister the driver by the given class name from DriverManager
*
* @param className
* @return true if deregister the driver successfully
* @throws OdaException
*/
public boolean deregisterDriver(String className) throws OdaException {
if (className == null || className.length() == 0)
// no driver class; assume class already deregistered
return false;
if (isDeregistered(className)) {
return true;
}
Driver driver = findDriver(className, null, false, false);
if (driver != null) {
try {
if (logger.isLoggable(Level.FINER))
logger.finer("Registering with DriverManager: wrapped driver for " + className);
if (registeredDrivers.containsKey(className)) {
DriverManager.deregisterDriver(new WrappedDriver(driver, className));
registeredDrivers.remove(className);
}
registeredDrivers.put(className, DRIVER_DEREGISTERED);
} catch (SQLException e) {
// This shouldn't happen
logger.log(Level.WARNING, "Failed to deRegister wrapped driver instance.", e);
}
}
return true;
}
/**
* Clean up resources used by the application when stopped
*
* @param event
*/
@Override
public void contextDestroyed(ServletContextEvent event) {
webApp.deregister();
try {
// Remove the database pool
DatabaseManager.shutdown();
// Clean out the introspector
Introspector.flushCaches();
// Remove any drivers registered by this classloader
for (Enumeration e = DriverManager.getDrivers(); e.hasMoreElements(); ) {
Driver driver = (Driver) e.nextElement();
if (driver.getClass().getClassLoader() == getClass().getClassLoader()) {
DriverManager.deregisterDriver(driver);
}
}
} catch (RuntimeException e) {
log.error("Failed to cleanup ClassLoader for webapp", e);
} catch (Exception e) {
log.error("Failed to cleanup ClassLoader for webapp", e);
}
}
public static void destroy() {
ComboPooledDataSource tmp = pool;
pool = null;
try {
tmp.resetPoolManager(true);
tmp.hardReset();
sleep(50);
} catch (Exception e) {
}
try {
tmp.close();
sleep(50);
} catch (Exception e) {
}
Enumeration<Driver> drivers = DriverManager.getDrivers();
while (drivers.hasMoreElements()) {
Driver next = drivers.nextElement();
try {
DriverManager.deregisterDriver(next);
} catch (SQLException e) {
e.printStackTrace();
}
}
}
private void deleteProject(String projectId) {
if (!projectId.equals("")) {
try {
Driver driver = new Driver();
DriverManager.registerDriver(driver);
Connection connection =
DriverManager.getConnection(
Config.DB_HOST + Config.DB_NAME, Config.DB_USER, Config.DB_PASS);
Statement statement = connection.createStatement();
statement.executeUpdate("DELETE FROM projects WHERE id='" + projectId + "';");
statement.close();
connection.close();
DriverManager.deregisterDriver(driver);
} catch (SQLException e) {
System.out.println(
"ProjectUploader: deleteProject: SQL Exception couldn't execute sql query!");
}
(new File(
Config.FILESYSTEM_BASE_PATH
+ Config.PROJECTS_DIRECTORY
+ projectId
+ Config.PROJECTS_EXTENTION))
.delete();
(new File(
Config.FILESYSTEM_BASE_PATH
+ Config.PROJECTS_QR_DIRECTORY
+ projectId
+ Config.PROJECTS_QR_EXTENTION))
.delete();
(new File(
Config.FILESYSTEM_BASE_PATH
+ Config.PROJECTS_THUMBNAIL_DIRECTORY
+ projectId
+ Config.PROJECTS_THUMBNAIL_EXTENTION_ORIG))
.delete();
(new File(
Config.FILESYSTEM_BASE_PATH
+ Config.PROJECTS_THUMBNAIL_DIRECTORY
+ projectId
+ Config.PROJECTS_THUMBNAIL_EXTENTION_SMALL))
.delete();
(new File(
Config.FILESYSTEM_BASE_PATH
+ Config.PROJECTS_THUMBNAIL_DIRECTORY
+ projectId
+ Config.PROJECTS_THUMBNAIL_EXTENTION_LARGE))
.delete();
CommonFunctions.deleteDir(
new File(
Config.FILESYSTEM_BASE_PATH
+ Config.PROJECTS_UNZIPPED_DIRECTORY
+ projectId
+ Config.FILESYSTEM_SEPARATOR));
} else {
System.out.println(
"ProjectUploader: deleteProject: invalid project id:'"
+ projectId
+ "' - couldn't delete!");
}
}
/**
* Stop intercepting requests.
*
* @throws SQLException
*/
public void unregister() throws SQLException {
this.connection = null;
this.mockJDBCAnswer = null;
active = false;
DriverManager.deregisterDriver(this);
}
/**
* This method tries hard to stop all threads and remove all references to classes in GeoServer so
* that we can avoid permgen leaks on application undeploy. What happes is that, if any JDK class
* references to one of the classes loaded by the webapp classloader, then the classloader cannot
* be collected and neither can all the classes loaded by it (since each class keeps a back
* reference to the classloader that loaded it). The same happens for any residual thread launched
* by the web app.
*/
public void contextDestroyed(ServletContextEvent sce) {
try {
LOGGER.info("Beginning GeoServer cleanup sequence");
// the dreaded classloader
ClassLoader webappClassLoader = getClass().getClassLoader();
// unload all of the jdbc drivers we have loaded. We need to store them and unregister
// later to avoid concurrent modification exceptions
Enumeration<Driver> drivers = DriverManager.getDrivers();
Set<Driver> driversToUnload = new HashSet<Driver>();
while (drivers.hasMoreElements()) {
Driver driver = drivers.nextElement();
try {
// the driver class loader can be null if the driver comes from the JDK, such as the
// sun.jdbc.odbc.JdbcOdbcDriver
ClassLoader driverClassLoader = driver.getClass().getClassLoader();
if (driverClassLoader != null && webappClassLoader.equals(driverClassLoader)) {
driversToUnload.add(driver);
}
} catch (Throwable t) {
t.printStackTrace();
}
}
for (Driver driver : driversToUnload) {
try {
DriverManager.deregisterDriver(driver);
LOGGER.info("Unregistered JDBC driver " + driver);
} catch (Exception e) {
LOGGER.log(Level.SEVERE, "Could now unload driver " + driver.getClass(), e);
}
}
drivers = DriverManager.getDrivers();
while (drivers.hasMoreElements()) {
Driver driver = drivers.nextElement();
}
try {
Class h2Driver = Class.forName("org.h2.Driver");
Method m = h2Driver.getMethod("unload");
m.invoke(null);
} catch (Exception e) {
LOGGER.log(Level.WARNING, "Failed to unload the H2 driver", e);
}
// unload all deferred authority factories so that we get rid of the timer tasks in them
try {
disposeAuthorityFactories(
ReferencingFactoryFinder.getCoordinateOperationAuthorityFactories(null));
} catch (Throwable e) {
LOGGER.log(Level.WARNING, "Error occurred trying to dispose authority factories", e);
}
try {
disposeAuthorityFactories(ReferencingFactoryFinder.getCRSAuthorityFactories(null));
} catch (Throwable e) {
LOGGER.log(Level.WARNING, "Error occurred trying to dispose authority factories", e);
}
try {
disposeAuthorityFactories(ReferencingFactoryFinder.getCSAuthorityFactories(null));
} catch (Throwable e) {
LOGGER.log(Level.WARNING, "Error occurred trying to dispose authority factories", e);
}
// kill the threads created by referencing
WeakCollectionCleaner.DEFAULT.exit();
DeferredAuthorityFactory.exit();
CRS.reset("all");
LOGGER.info("Shut down GT referencing threads ");
// reset
ReferencingFactoryFinder.reset();
CommonFactoryFinder.reset();
DataStoreFinder.reset();
DataAccessFinder.reset();
LOGGER.info("Shut down GT SPI ");
LOGGER.info("Shut down coverage thread pool ");
Object o = Hints.getSystemDefault(Hints.EXECUTOR_SERVICE);
if (o != null && o instanceof ExecutorService) {
final ThreadPoolExecutor executor = (ThreadPoolExecutor) o;
try {
executor.shutdown();
} finally {
try {
executor.shutdownNow();
} finally {
}
}
}
// unload everything that JAI ImageIO can still refer to
// We need to store them and unregister later to avoid concurrent modification exceptions
final IIORegistry ioRegistry = IIORegistry.getDefaultInstance();
Set<IIOServiceProvider> providersToUnload = new HashSet();
for (Iterator<Class<?>> cats = ioRegistry.getCategories(); cats.hasNext(); ) {
Class<?> category = cats.next();
for (Iterator it = ioRegistry.getServiceProviders(category, false); it.hasNext(); ) {
final IIOServiceProvider provider = (IIOServiceProvider) it.next();
if (webappClassLoader.equals(provider.getClass().getClassLoader())) {
providersToUnload.add(provider);
}
}
}
for (IIOServiceProvider provider : providersToUnload) {
ioRegistry.deregisterServiceProvider(provider);
LOGGER.info("Unregistering Image I/O provider " + provider);
}
// unload everything that JAI can still refer to
final OperationRegistry opRegistry = JAI.getDefaultInstance().getOperationRegistry();
for (String mode : RegistryMode.getModeNames()) {
for (Iterator descriptors = opRegistry.getDescriptors(mode).iterator();
descriptors != null && descriptors.hasNext(); ) {
RegistryElementDescriptor red = (RegistryElementDescriptor) descriptors.next();
int factoryCount = 0;
int unregisteredCount = 0;
// look for all the factories for that operation
for (Iterator factories = opRegistry.getFactoryIterator(mode, red.getName());
factories != null && factories.hasNext(); ) {
Object factory = factories.next();
if (factory == null) {
continue;
}
factoryCount++;
if (webappClassLoader.equals(factory.getClass().getClassLoader())) {
boolean unregistered = false;
// we need to scan against all "products" to unregister the factory
Vector orderedProductList = opRegistry.getOrderedProductList(mode, red.getName());
if (orderedProductList != null) {
for (Iterator products = orderedProductList.iterator();
products != null && products.hasNext(); ) {
String product = (String) products.next();
try {
opRegistry.unregisterFactory(mode, red.getName(), product, factory);
LOGGER.info("Unregistering JAI factory " + factory.getClass());
} catch (Throwable t) {
// may fail due to the factory not being registered against that product
}
}
}
if (unregistered) {
unregisteredCount++;
}
}
}
// if all the factories were unregistered, get rid of the descriptor as well
if (factoryCount > 0 && unregisteredCount == factoryCount) {
opRegistry.unregisterDescriptor(red);
}
}
}
// flush all javabean introspection caches as this too can keep a webapp classloader from
// being unloaded
Introspector.flushCaches();
LOGGER.info("Cleaned up javabean caches");
// unload the logging framework
if (!relinquishLoggingControl) LogManager.shutdown();
LogFactory.release(Thread.currentThread().getContextClassLoader());
// GeoTools/GeoServer have a lot of finalizers and until they are run the JVM
// itself wil keepup the class loader...
try {
System.gc();
System.runFinalization();
System.gc();
System.runFinalization();
System.gc();
System.runFinalization();
} catch (Throwable t) {
LOGGER.severe("Failed to perform closing up finalization");
t.printStackTrace();
}
} catch (Throwable t) {
// if anything goes south during the cleanup procedures I want to know what it is
t.printStackTrace();
}
}
/**
* Disable everything.
*
* @throws SQLException
* @throws SQLException
*/
public synchronized void disable() throws SQLException {
this.connection = null;
this.mockJDBCAnswer = null;
DriverManager.deregisterDriver(this);
}
