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package com.sun.enterprise.server.ss;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.appserv.server.ServerLifecycle;
import com.sun.enterprise.admin.server.core.AdminChannelLifecycle;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.config.ConfigBean;
import com.sun.enterprise.config.serverbeans.AdminService;
import com.sun.enterprise.config.serverbeans.Config;
import com.sun.enterprise.config.serverbeans.HttpListener;
import com.sun.enterprise.config.serverbeans.HttpService;
import com.sun.enterprise.config.serverbeans.IiopListener;
import com.sun.enterprise.config.serverbeans.IiopService;
import com.sun.enterprise.config.serverbeans.JmsHost;
import com.sun.enterprise.config.serverbeans.JmsService;
import com.sun.enterprise.config.serverbeans.JmxConnector;
import com.sun.enterprise.config.serverbeans.ServerBeansFactory;
import com.sun.enterprise.config.serverbeans.ServerTags;
import com.sun.enterprise.jms.JmsProviderLifecycle;
import com.sun.enterprise.server.ServerContext;
import com.sun.enterprise.server.ss.provider.ASClientSocketFactory;
import com.sun.enterprise.server.ss.provider.ASServerSocketFactory;
import com.sun.enterprise.server.ss.provider.PortConflictException;
import com.sun.enterprise.server.ss.provider.ASPlainSocketImpl;
import com.sun.logging.LogDomains;
/**
* This is a helper class to start an ASSocketService instance on
* various ports.
* We also setup socket factories.
*/
public final class ASLazyKernel {
private static final String AS_SELECTOR_PROVIDER =
"com.sun.enterprise.server.ss.provider.ASSelectorProvider";
private static final String SELECTOR_PROVIDER_PROP =
"java.nio.channels.spi.SelectorProvider";
private static final String QUICK_STARTUP =
"com.sun.enterprise.server.ss.ASQuickStartup";
private static final String DEFAULT_SELECTOR_PROVIDER =
"sun.nio.ch.DefaultSelectorProvider";
private static boolean areJDKClassesCreatable = false;
private static final Logger logger = LogDomains.getLogger(LogDomains.CORE_LOGGER);
private Config conf = null;
//private JmsProviderLifecycle jmslc = null;
private AdminChannelLifecycle adminlc = null;
public boolean startASSocketServices(ServerContext context) {
try {
if ( initializeASSocketService() ) {
logFine("STARTING ASSocketService");
ASSocketService.initialize();
initializeAdminService(context);
setupSocketListeners(context);
setupInitialServices(context);
logger.log( Level.INFO, "socketservice.init_done");
return true;
}
logFine("Not using ASSocketService. Proceeding with normal startup");
} catch ( PortConflictException pex ) {
logger.log(Level.SEVERE, "socketservice.port_conflict",
new Object[]{String.valueOf(pex.getConflictedPort())});
exitServer(context, pex.getConflictedPort());
} catch ( Exception ex ) {
logger.log(Level.SEVERE, "socketservice.unknown_ex", ex);
exitServer(context,0);
}
return false;
}
private void exitServer(ServerContext context, int port) {
logFine("Stopped MQ");
abortAdminService(context, port);
logFine("Aborted admin service");
// Abort the server.
System.exit(1);
}
private void setupSocketListeners(ServerContext scontext)
throws PortConflictException, com.sun.enterprise.config.ConfigException {
ConfigContext ctxt = scontext.getConfigContext();
conf = ServerBeansFactory.getConfigBean( ctxt );
// Start HTTP listener ports
HttpService httpService = conf.getHttpService();
int backlog = 0;
try {
backlog = Integer.parseInt(
httpService.getConnectionPool().getMaxPendingCount());
} catch (Exception e) {
logger.log(Level.WARNING, e.getMessage());
}
HttpListener[] httpListeners = httpService.getHttpListener();
for ( int i=0; i<httpListeners.length; i++ ) {
if ( !httpListeners[i].isEnabled() )
continue;
startService(httpListeners[i], false, backlog);
logFine("Started ASSocketService for HTTP(S) ");
}
// Start IIOP listener ports
IiopService iiopService = conf.getIiopService();
IiopListener[] iiopListeners = iiopService.getIiopListener();
for ( int i=0; i<iiopListeners.length; i++ ) {
if ( !iiopListeners[i].isEnabled() )
continue;
startService(iiopListeners[i]);
logFine("Started ASSocketService for IIOP(S)");
}
// Start JMX Connector ports
AdminService adminService = conf.getAdminService();
JmxConnector[] jmxConnectors = adminService.getJmxConnector();
for ( int i=0; i<jmxConnectors.length; i++ ) {
if ( !jmxConnectors[i].isEnabled() )
continue;
startService(jmxConnectors[i], false, 0);
logFine("Started ASSocketService for JMX Connector ");
}
// Start MQ ports
JmsService jmsService_ = conf.getJmsService();
String defaultJmsHost = jmsService_.getDefaultJmsHost();
JmsHost jmsHost_ = null;
if (defaultJmsHost==null || defaultJmsHost.equals("")) {
jmsHost_ = ServerBeansFactory.getJmsHostBean(ctxt);
} else {
jmsHost_ = jmsService_.getJmsHostByName(defaultJmsHost);
}
if (jmsService_.getType().equalsIgnoreCase("embedded") &&
jmsHost_ != null && jmsHost_.isEnabled()) {
ASSocketServiceConfig ssConfig =
new ASSocketServiceConfig(jmsHost_);
ssConfig.setPortTag(ServerTags.PORT);
(new ASSocketService(ssConfig)).start();
logFine("Started ASSocketService for JMS ");
}
}
private void startService(ConfigBean bean) throws PortConflictException {
startService(bean,true,0);
}
private void startService(ConfigBean bean, boolean flag, int backlog)
throws PortConflictException {
ASSocketServiceConfig ssConfig =
new ASSocketServiceConfig(bean);
ssConfig.setAddressTag(ServerTags.ADDRESS);
ssConfig.setPortTag(ServerTags.PORT);
ssConfig.setStartSelector(flag);
ssConfig.setBacklog(backlog);
(new ASSocketService(ssConfig)).start();
}
private void setupInitialServices( ServerContext context )
throws Exception {
startAdminService( context );
}
private void initializeAdminService (ServerContext context) throws Exception{
createAdminChannelLifecycle();
adminlc.onInitialization(context);
}
private void startAdminService(ServerContext context) throws Exception{
logFine( "About to start AdminService ");
createAdminChannelLifecycle();
adminlc.onStartup(context);
adminlc.onReady(context);
}
private void abortAdminService(ServerContext sc, int port) {
try {
createAdminChannelLifecycle();
adminlc.onAbort(port);
ASSocketService.waitForClientNotification();
adminlc.onShutdown();
adminlc.onTermination();
} catch (Exception e) {
e.printStackTrace();
}
}
private void createAdminChannelLifecycle() {
if (adminlc == null) {
adminlc = new AdminChannelLifecycle();
}
}
private void stopLifecycle(ServerLifecycle lifecycle) {
try {
lifecycle.onShutdown();
} catch (Throwable t) {
logger.log(Level.SEVERE, "socketservice.stop_lc_ex", t);
}
try {
lifecycle.onTermination();
} catch (Throwable t) {
logger.log(Level.SEVERE, "socketservice.stop_lc_ex", t);
}
}
private void startLifecycle(ServerLifecycle lifecycle, ServerContext sc)
throws Exception {
lifecycle.onInitialization(sc);
lifecycle.onStartup(sc);
lifecycle.onReady(sc);
}
public static boolean isQuickStartupEnabled() {
// enabled by default if system property absent
String quickStartValue = System.getProperty(QUICK_STARTUP);
if (quickStartValue !=null && quickStartValue.equals("true") ) {
return areJDKClassesCreatable();
}
return false;
}
private static void logFine( String msg ) {
if (logger.isLoggable(Level.FINE)) {
logger.fine( msg );
}
}
/**
* This method does the following: <br>
* <ul>
* <li>Checks if the class sun.nio.ch.DefaultSelectorProvider is present
* and its "create()" method is callable</li>
* <li>Sets the system property that defines our impl of a SelectorProvider</li>
* <li>Creates and sets the SocketImplFactories for ServerSocket and Socket</li>
*</ul>
*
* If a problem occurs in any of the above steps, we simply assume that we
* should use the default startup behavior and proceed
*/
private boolean initializeASSocketService() throws IOException {
if ( isQuickStartupEnabled()) {
// Set the NIO SelectorProvider impl property
System.setProperty(SELECTOR_PROVIDER_PROP,
AS_SELECTOR_PROVIDER);
// Set the SocketImplFactories for ServerSocket and Socket
// Note: if either of these factories was already set (almost
// impossible), an exception will be thrown and server will abort.
ServerSocket.setSocketFactory( new ASServerSocketFactory() );
Socket.setSocketImplFactory( new ASClientSocketFactory() );
return true;
}
return false;
}
/**
* The whole quick startup for the appserver hinges on whether we can
* wrap JDK socket layer. So check it.
*/
private static boolean areJDKClassesCreatable() {
if ( areJDKClassesCreatable ) {
return true;
}
try {
Class clazz = Class.forName(DEFAULT_SELECTOR_PROVIDER);
java.lang.reflect.Method createMeth = clazz.getMethod("create",
new Class[] {});
createMeth.invoke( null, new Object[] {} );
//Attempt to create the JDK socketimpl.
new ASPlainSocketImpl();
} catch( Exception e ) {
logFine( "Exception in areJDKClassesCreatable : " + e );
return false;
}
//Since we could invoke "create" on a DefaultSelectorProvider object
//successfully, everything is ok
areJDKClassesCreatable = true;
return true;
}
}