private void initializeCatalogServices() throws Exception {
CatalogDAO c = CatalogDAOFactory.newInstance();
try {
c.recoverTransactions();
// Create and configure all Dynamic Site Providers
for (Provider provider : c.findAllProviders()) {
SiteProviderContext ctxt = new SiteProviderContextInitialisation(provider.getName(), c);
SiteProviderFactory.addProvider(
ctxt,
provider.getPlugin(),
provider.getName(),
provider.isEnabled(),
provider.getConfig());
}
// Create and configure External Services
for (ExternalService es : c.findAllExternalServices()) {
// enclose in try/catch in case an early service fails we still
// start the later ones
try {
ExternalServiceFactory.register(es.getName(), es.getPlugin());
} catch (Exception e) {
e.printStackTrace();
}
}
// GlobalConfigVariableHandler.initializeGlobalVariables(getGlobalVariables(c));
} finally {
c.close();
}
}
// you'll have to set the def db, project - the session context would do that for us -
// i.e. this test does not handle use statements correctly
@SuppressWarnings({"rawtypes", "unchecked"})
private Pair<SchemaContext, Persistable<?, ?>> roundTrip(String sql, String defaultDatabase)
throws Exception {
PECreateStatement firstTime = null;
PECreateStatement secondTime = null;
CatalogDAO catalog = CatalogDAOFactory.newInstance();
SchemaContext secondPC = null;
try {
catalog.begin();
SchemaContext firstPC = buildContext(catalog);
if (defaultDatabase != null)
firstPC.setCurrentDatabase(firstPC.findDatabase(defaultDatabase));
firstTime = trip(firstPC, catalog, sql, defaultDatabase);
// don't persist yet
String gen = firstTime.getSQL(firstPC, true, false);
echo(gen);
secondPC = buildContext(catalog);
if (defaultDatabase != null)
secondPC.setCurrentDatabase(secondPC.findDatabase(defaultDatabase));
secondTime = trip(secondPC, catalog, gen, defaultDatabase);
// make sure the objects are the same
String diffs = firstTime.getCreated().differs(firstPC, secondTime.getCreated(), false);
if (diffs != null) fail(diffs);
persistToCatalog(catalog, secondPC, secondTime);
catalog.commit();
// now, we're going to load that persistable object and compare it to the second time
catalog.begin();
checkLoad(catalog, secondTime.getCreated(), defaultDatabase);
catalog.rollbackNoException();
} finally {
catalog.close();
}
return new Pair<SchemaContext, Persistable<?, ?>>(secondPC, secondTime.getCreated());
}
public String[] generateCatalog() throws PEException {
CatalogDAO c = CatalogDAOFactory.newInstance();
String[] current = null;
try {
CatalogGenerator generator = Singletons.require(CatalogGenerator.class);
current =
generator.buildCreateCurrentSchema(
c,
Singletons.require(HostService.class)
.getProperties()); // TODO: this looks like we are only looking up the host to get
// something for the catalog. -sgossard
} finally {
c.close();
}
return current;
}
public static void stopServices() throws Exception {
MySqlPortal.stop();
TemporaryTable.onStopServices();
if (GroupManager.getCoordinationServices() != null)
GroupManager.getCoordinationServices().unRegisterWithGroup();
Host.hostStop();
Agent.stopServices();
CatalogDAOFactory.shutdown();
AutoIncrementTracker.clearCache();
RangeDistributionModel.clearCache();
RandomDistributionModel.clearCache();
SiteProviderFactory.closeSiteProviders();
ExternalServiceFactory.closeExternalServices();
GroupManager.shutdown();
DirectConnectionCache.clearConnectionCache();
}
public static <T> BootstrapHost startServices(Class<T> bootstrapClass, Properties props)
throws Exception {
String url = props.getProperty(DBHelper.CONN_URL);
String database = props.getProperty(DBHelper.CONN_DBNAME, PEConstants.CATALOG);
// Fail to start if we don't have a valid catalog connection URL
if (StringUtils.isBlank(url))
throw new PEException(
"Value for " + DBHelper.CONN_URL + " not specified in server configuration");
if (StringUtils.isBlank(database))
throw new PEException(
"Value for " + DBHelper.CONN_DBNAME + " not specified in server configuration");
// Attempt to load the JDBC driver - fail early if it isn't available
DBHelper.loadDriver(props.getProperty(DBHelper.CONN_DRIVER_CLASS));
props.put(
DBHelper.CONN_URL,
CatalogURL.buildCatalogBaseUrlFrom(props.getProperty(DBHelper.CONN_URL)).toString());
props.put(DBHelper.CONN_DBNAME, database);
DBHelper helper = new DBHelper(props);
int catalogAccessible = 1;
try {
// Check that we can connect to the database and that the catalog database exists
helper.connect();
// and also check that it is a valid catalog
helper.executeQuery("SELECT name FROM " + database + ".user_table");
} catch (Exception e) {
String message = e.getMessage();
if (message != null && message.startsWith("Error using")) catalogAccessible = -1;
else catalogAccessible = 0;
if (catalogAccessible == 0)
throw new Exception(
"A DVE catalog couldn't be found at '"
+ url
+ "' with name '"
+ database
+ "' - use dve_config to set the connection credentials for the server (error was "
+ message
+ ")");
} finally {
helper.disconnect();
}
if (catalogAccessible == -1) {
new CatalogHelper(bootstrapClass).createBootstrapCatalog();
}
// Temporarily set the log level to info so that the below message will print and force the
// header to print
Level logLevel =
logger.getLevel(); // this is needed in case an explicit level is set on this category
Level effectiveLevel =
logger
.getEffectiveLevel(); // if an explicit level isn't set, this gets the level from the
// hierarchy
logger.setLevel(Level.INFO);
if (catalogAccessible == -1) {
logger.info("INSTALLED BOOTSTRAP CATALOG " + database + " AT " + url);
}
logger.info("Starting DVE server using:");
logger.info("... Catalog URL : " + url);
logger.info("... Catalog database : " + database);
logger.info("... Catalog User : "******"Resetting log level back to: " + effectiveLevel);
logger.setLevel(logLevel);
// We have to initialize the Group Manager before anything else.
GroupManager.initialize(props);
GroupManager.getCoordinationServices().registerWithGroup(props);
CatalogDAOFactory.setup(props);
SchemaSourceFactory.reset();
ErrorMapper.initialize();
Agent.setPluginProvider(SimpleMQPlugin.PROVIDER);
Agent.startServices(props);
BootstrapHost host = new BootstrapHost(bootstrapClass.getName(), props);
ClusterLock genLock =
GroupManager.getCoordinationServices()
.getClusterLock(RangeDistributionModel.GENERATION_LOCKNAME);
String reason = "boostrapping system";
genLock.sharedLock(null, reason);
genLock.sharedUnlock(null, reason);
TemporaryTable.onStartServices();
MySqlPortal.start(props);
return host;
}
