Glassfish example source code file (StandardServer.java)
The Glassfish StandardServer.java source code/*
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package org.apache.catalina.core;
import org.apache.catalina.*;
import org.apache.catalina.deploy.NamingResources;
import org.apache.catalina.util.LifecycleSupport;
import org.apache.catalina.util.StringManager;
import org.apache.tomcat.util.modeler.Registry;
import javax.management.MBeanRegistration;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.security.AccessControlException;
import java.util.List;
import java.util.Random;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Standard implementation of the <b>Server interface, available for use
* (but not required) when deploying and starting Catalina.
*
* @author Craig R. McClanahan
* @version $Revision: 1.5 $ $Date: 2007/02/20 20:16:56 $
*/
public final class StandardServer
implements Lifecycle, Server, MBeanRegistration
{
private static Logger log = Logger.getLogger(
StandardServer.class.getName());
// -------------------------------------------------------------- Constants
/**
* The set of class/property combinations that should <strong>NOT
* be persisted because they are automatically calculated.
*/
private static String exceptions[][] = {
{ "org.apache.catalina.core.StandardEngine", "domain" },
{ "org.apache.catalina.core.StandardHost", "domain" },
{ "org.apache.catalina.core.StandardContext", "available" },
{ "org.apache.catalina.core.StandardContext", "configFile" },
{ "org.apache.catalina.core.StandardContext", "configured" },
{ "org.apache.catalina.core.StandardContext", "distributable" },
{ "org.apache.catalina.core.StandardContext", "domain" },
{ "org.apache.catalina.core.StandardContext", "engineName" },
{ "org.apache.catalina.core.StandardContext", "name" },
{ "org.apache.catalina.core.StandardContext", "override" },
{ "org.apache.catalina.core.StandardContext", "publicId" },
{ "org.apache.catalina.core.StandardContext", "replaceWelcomeFiles" },
{ "org.apache.catalina.core.StandardContext", "sessionTimeout" },
{ "org.apache.catalina.core.StandardContext", "startupTime" },
{ "org.apache.catalina.core.StandardContext", "tldScanTime" },
{ "org.apache.catalina.core.StandardContext", "workDir" },
{ "org.apache.catalina.session.StandardManager", "distributable" },
{ "org.apache.catalina.session.StandardManager", "entropy" },
};
/**
* The set of classes that represent persistable properties.
*/
private static Class persistables[] = {
String.class,
Integer.class, Integer.TYPE,
Boolean.class, Boolean.TYPE,
Byte.class, Byte.TYPE,
Character.class, Character.TYPE,
Double.class, Double.TYPE,
Float.class, Float.TYPE,
Long.class, Long.TYPE,
Short.class, Short.TYPE,
};
/**
* The set of class names that should be skipped when persisting state,
* because the corresponding listeners, valves, etc. are configured
* automatically at startup time.
*/
private static String skippables[] = {
"org.apache.catalina.authenticator.BasicAuthenticator",
"org.apache.catalina.authenticator.DigestAuthenticator",
"org.apache.catalina.authenticator.FormAuthenticator",
"org.apache.catalina.authenticator.NonLoginAuthenticator",
"org.apache.catalina.authenticator.SSLAuthenticator",
"org.apache.catalina.core.NamingContextListener",
"org.apache.catalina.core.StandardContextValve",
"org.apache.catalina.core.StandardDefaultContext",
"org.apache.catalina.core.StandardEngineValve",
"org.apache.catalina.core.StandardHostValve",
"org.apache.catalina.startup.ContextConfig",
"org.apache.catalina.startup.EngineConfig",
"org.apache.catalina.startup.HostConfig",
"org.apache.catalina.valves.CertificatesValve",
"org.apache.catalina.valves.ErrorReportValve",
"org.apache.catalina.valves.RequestListenerValve",
};
/**
* The set of class names that are the standard implementations of
* components, and hence should not be persisted.
*/
private static String standardImplementations[] = {
"org.apache.catalina.core.StandardServer",
"org.apache.catalina.core.StandardService",
"org.apache.catalina.connector.CoyoteConnector",
"org.apache.catalina.core.StandardEngine",
"org.apache.catalina.core.StandardHost",
"org.apache.catalina.core.StandardContext"
};
// ------------------------------------------------------------ Constructor
/**
* Construct a default instance of this class.
*/
public StandardServer() {
super();
ServerFactory.setServer(this);
globalNamingResources = new NamingResources();
globalNamingResources.setContainer(this);
if (isUseNaming()) {
if (namingContextListener == null) {
namingContextListener = new NamingContextListener();
namingContextListener.setDebug(getDebug());
addLifecycleListener(namingContextListener);
}
}
}
// ----------------------------------------------------- Instance Variables
/**
* Debugging detail level.
*/
private int debug = 0;
/**
* Global naming resources context.
*/
private javax.naming.Context globalNamingContext = null;
/**
* Global naming resources.
*/
private NamingResources globalNamingResources = null;
/**
* Descriptive information about this Server implementation.
*/
private static final String info =
"org.apache.catalina.core.StandardServer/1.0";
/**
* The lifecycle event support for this component.
*/
private LifecycleSupport lifecycle = new LifecycleSupport(this);
/**
* The naming context listener for this web application.
*/
private NamingContextListener namingContextListener = null;
/**
* The port number on which we wait for shutdown commands.
*/
private int port = 8005;
/**
* A random number generator that is <strong>only used if
* the shutdown command string is longer than 1024 characters.
*/
private Random random = null;
/**
* The set of Services associated with this Server.
*/
private Service services[] = new Service[0];
/**
* The shutdown command string we are looking for.
*/
private String shutdown = "SHUTDOWN";
/**
* The string manager for this package.
*/
private static final StringManager sm =
StringManager.getManager(Constants.Package);
/**
* Has this component been started?
*/
private boolean started = false;
/**
* Has this component been initialized?
*/
private boolean initialized = false;
/**
* The property change support for this component.
*/
protected PropertyChangeSupport support = new PropertyChangeSupport(this);
// ------------------------------------------------------------- Properties
/**
* Return the debugging detail level.
*/
public int getDebug() {
return (this.debug);
}
/**
* Set the debugging detail level.
*
* @param debug The new debugging detail level
*/
public void setDebug(int debug) {
this.debug = debug;
}
/**
* Return the global naming resources context.
*/
public javax.naming.Context getGlobalNamingContext() {
return (this.globalNamingContext);
}
/**
* Set the global naming resources context.
*
* @param globalNamingContext The new global naming resource context
*/
public void setGlobalNamingContext
(javax.naming.Context globalNamingContext) {
this.globalNamingContext = globalNamingContext;
}
/**
* Return the global naming resources.
*/
public NamingResources getGlobalNamingResources() {
return (this.globalNamingResources);
}
/**
* Set the global naming resources.
*
* @param globalNamingResources The new global naming resources
*/
public void setGlobalNamingResources
(NamingResources globalNamingResources) {
NamingResources oldGlobalNamingResources =
this.globalNamingResources;
this.globalNamingResources = globalNamingResources;
this.globalNamingResources.setContainer(this);
support.firePropertyChange("globalNamingResources",
oldGlobalNamingResources,
this.globalNamingResources);
}
/**
* Return descriptive information about this Server implementation and
* the corresponding version number, in the format
* <code><description>/<version>.
*/
public String getInfo() {
return (info);
}
/**
* Return the port number we listen to for shutdown commands.
*/
public int getPort() {
return (this.port);
}
/**
* Set the port number we listen to for shutdown commands.
*
* @param port The new port number
*/
public void setPort(int port) {
this.port = port;
}
/**
* Return the shutdown command string we are waiting for.
*/
public String getShutdown() {
return (this.shutdown);
}
/**
* Set the shutdown command we are waiting for.
*
* @param shutdown The new shutdown command
*/
public void setShutdown(String shutdown) {
this.shutdown = shutdown;
}
// --------------------------------------------------------- Server Methods
/**
* Add a new Service to the set of defined Services.
*
* @param service The Service to be added
*/
public void addService(Service service) {
service.setServer(this);
synchronized (services) {
Service results[] = new Service[services.length + 1];
System.arraycopy(services, 0, results, 0, services.length);
results[services.length] = service;
services = results;
if (initialized) {
try {
service.initialize();
} catch (LifecycleException e) {
log.log(Level.SEVERE, e.toString());
}
}
if (started && (service instanceof Lifecycle)) {
try {
((Lifecycle) service).start();
} catch (LifecycleException e) {
;
}
}
// Report this property change to interested listeners
support.firePropertyChange("service", null, service);
}
}
/**
* Wait until a proper shutdown command is received, then return.
*/
public void await() {
// Set up a server socket to wait on
ServerSocket serverSocket = null;
try {
serverSocket =
new ServerSocket(port, 1,
InetAddress.getByName("127.0.0.1"));
} catch (IOException e) {
log.log(Level.SEVERE,
"StandardServer.await: create[" + port + "]: ",
e);
System.exit(1);
}
// Loop waiting for a connection and a valid command
while (true) {
// Wait for the next connection
Socket socket = null;
InputStream stream = null;
try {
socket = serverSocket.accept();
socket.setSoTimeout(10 * 1000); // Ten seconds
stream = socket.getInputStream();
} catch (AccessControlException ace) {
log.log(Level.WARNING,
"StandardServer.accept security exception: "
+ ace.getMessage(),
ace);
continue;
} catch (IOException e) {
log.log(Level.SEVERE, "StandardServer.await: accept: ", e);
System.exit(1);
}
// Read a set of characters from the socket
StringBuilder command = new StringBuilder();
int expected = 1024; // Cut off to avoid DoS attack
while (expected < shutdown.length()) {
if (random == null)
random = new Random(System.currentTimeMillis());
expected += random.nextInt(1024);
}
while (expected > 0) {
int ch = -1;
try {
ch = stream.read();
} catch (IOException e) {
log.log(Level.WARNING, "StandardServer.await: read: ", e);
ch = -1;
}
if (ch < 32) // Control character or EOF terminates loop
break;
command.append((char) ch);
expected--;
}
// Close the socket now that we are done with it
try {
socket.close();
} catch (IOException e) {
;
}
// Match against our command string
boolean match = command.toString().equals(shutdown);
if (match) {
break;
} else {
log.warning("StandardServer.await: Invalid command '" +
command.toString() + "' received");
}
}
// Close the server socket and return
try {
serverSocket.close();
} catch (IOException e) {
;
}
}
/**
* Return the specified Service (if it exists); otherwise return
* <code>null.
*
* @param name Name of the Service to be returned
*/
public Service findService(String name) {
if (name == null) {
return (null);
}
synchronized (services) {
for (int i = 0; i < services.length; i++) {
if (name.equals(services[i].getName())) {
return (services[i]);
}
}
}
return (null);
}
/**
* Return the set of Services defined within this Server.
*/
public Service[] findServices() {
return (services);
}
/**
* @return the object names of all registered Service instances
*/
public ObjectName[] getServiceNames() {
ObjectName onames[]=new ObjectName[ services.length ];
for( int i=0; i<services.length; i++ ) {
onames[i]=((StandardService)services[i]).getObjectName();
}
return onames;
}
/**
* Remove the specified Service from the set associated from this
* Server.
*
* @param service The Service to be removed
*/
public void removeService(Service service) {
synchronized (services) {
int j = -1;
for (int i = 0; i < services.length; i++) {
if (service == services[i]) {
j = i;
break;
}
}
if (j < 0)
return;
if (services[j] instanceof Lifecycle) {
try {
((Lifecycle) services[j]).stop();
} catch (LifecycleException e) {
;
}
}
int k = 0;
Service results[] = new Service[services.length - 1];
for (int i = 0; i < services.length; i++) {
if (i != j)
results[k++] = services[i];
}
services = results;
// Report this property change to interested listeners
support.firePropertyChange("service", service, null);
}
}
// --------------------------------------------------------- Public Methods
/**
* Add a property change listener to this component.
*
* @param listener The listener to add
*/
public void addPropertyChangeListener(PropertyChangeListener listener) {
support.addPropertyChangeListener(listener);
}
/**
* Remove a property change listener from this component.
*
* @param listener The listener to remove
*/
public void removePropertyChangeListener(PropertyChangeListener listener) {
support.removePropertyChangeListener(listener);
}
/**
* Return a String representation of this component.
*/
public String toString() {
StringBuilder sb = new StringBuilder("StandardServer[");
sb.append(getPort());
sb.append("]");
return (sb.toString());
}
// -------------------------------------------------------- Private Methods
/**
* Return true if naming should be used.
*/
private boolean isUseNaming() {
boolean useNaming = true;
// Reading the "catalina.useNaming" environment variable
String useNamingProperty = System.getProperty("catalina.useNaming");
if ((useNamingProperty != null)
&& (useNamingProperty.equals("false"))) {
useNaming = false;
}
return useNaming;
}
// ---------------------------------------------------- Lifecycle Methods
/**
* Add a LifecycleEvent listener to this component.
*
* @param listener The listener to add
*/
public void addLifecycleListener(LifecycleListener listener) {
lifecycle.addLifecycleListener(listener);
}
/**
* Gets the (possibly empty) list of lifecycle listeners
* associated with this StandardServer.
*/
public List<LifecycleListener> findLifecycleListeners() {
return lifecycle.findLifecycleListeners();
}
/**
* Remove a LifecycleEvent listener from this component.
*
* @param listener The listener to remove
*/
public void removeLifecycleListener(LifecycleListener listener) {
lifecycle.removeLifecycleListener(listener);
}
/**
* Prepare for the beginning of active use of the public methods of this
* component. This method should be called before any of the public
* methods of this component are utilized. It should also send a
* LifecycleEvent of type START_EVENT to any registered listeners.
*
* @exception LifecycleException if this component detects a fatal error
* that prevents this component from being used
*/
public void start() throws LifecycleException {
// Validate and update our current component state
if (started) {
log.fine(sm.getString("standardServer.start.started"));
return;
}
// Notify our interested LifecycleListeners
lifecycle.fireLifecycleEvent(BEFORE_START_EVENT, null);
lifecycle.fireLifecycleEvent(START_EVENT, null);
started = true;
// Start our defined Services
synchronized (services) {
for (int i = 0; i < services.length; i++) {
if (services[i] instanceof Lifecycle)
((Lifecycle) services[i]).start();
}
}
// Notify our interested LifecycleListeners
lifecycle.fireLifecycleEvent(AFTER_START_EVENT, null);
}
/**
* Gracefully terminate the active use of the public methods of this
* component. This method should be the last one called on a given
* instance of this component. It should also send a LifecycleEvent
* of type STOP_EVENT to any registered listeners.
*
* @exception LifecycleException if this component detects a fatal error
* that needs to be reported
*/
public void stop() throws LifecycleException {
// Validate and update our current component state
if (!started)
return;
// Notify our interested LifecycleListeners
lifecycle.fireLifecycleEvent(BEFORE_STOP_EVENT, null);
lifecycle.fireLifecycleEvent(STOP_EVENT, null);
started = false;
// Stop our defined Services
for (int i = 0; i < services.length; i++) {
if (services[i] instanceof Lifecycle)
((Lifecycle) services[i]).stop();
}
// Notify our interested LifecycleListeners
lifecycle.fireLifecycleEvent(AFTER_STOP_EVENT, null);
}
public void init() throws Exception {
initialize();
}
/**
* Invoke a pre-startup initialization. This is used to allow connectors
* to bind to restricted ports under Unix operating environments.
*/
public void initialize()
throws LifecycleException
{
if (initialized) {
log.info(sm.getString(
"standardServer.initialize.initialized"));
return;
}
// START GlassFish 2439
lifecycle.fireLifecycleEvent(INIT_EVENT, null);
// END GlassFish 2439
initialized = true;
if( oname==null ) {
try {
oname=new ObjectName( "Catalina:type=Server");
// Do not register unused tomcat mbeans
//Registry.getRegistry(null, null).registerComponent(this, oname, null );
} catch (Exception e) {
log.log(Level.SEVERE, "Error registering ",e);
}
}
// Initialize our defined Services
for (int i = 0; i < services.length; i++) {
services[i].initialize();
}
}
protected String type;
protected String domain;
protected String suffix;
protected ObjectName oname;
protected MBeanServer mserver;
public ObjectName getObjectName() {
return oname;
}
public String getDomain() {
return domain;
}
public ObjectName preRegister(MBeanServer server,
ObjectName name) throws Exception {
oname=name;
mserver=server;
domain=name.getDomain();
return name;
}
public void postRegister(Boolean registrationDone) {
}
public void preDeregister() throws Exception {
}
public void postDeregister() {
}
}
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