Glassfish example source code file (Catalina.java)
The Glassfish Catalina.java source code/*
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package org.apache.catalina.startup;
import org.apache.catalina.Container;
import org.apache.catalina.Lifecycle;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.Server;
import org.apache.catalina.core.StandardServer;
import org.apache.catalina.util.CatalinaDigester;
import org.apache.tomcat.util.digester.Digester;
import org.apache.tomcat.util.digester.Rule;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import java.io.*;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Startup/Shutdown shell program for Catalina. The following command line
* options are recognized:
* <ul>
* <li>-config {pathname} - Set the pathname of the configuration file
* to be processed. If a relative path is specified, it will be
* interpreted as relative to the directory pathname specified by the
* "catalina.base" system property. [conf/server.xml]
* <li>-help - Display usage information.
* <li>-stop - Stop the currently running instance of Catalina.
* </u>
*
* Should do the same thing as Embedded, but using a server.xml file.
*
* @author Craig R. McClanahan
* @author Remy Maucherat
* @version $Revision: 1.5 $ $Date: 2006/11/10 18:12:35 $
*/
public class Catalina extends Embedded {
private static final ClassLoader standardServerClassLoader =
StandardServer.class.getClassLoader();
private static final Logger log =
Logger.getLogger(Catalina.class.getName());
// --------------------------------------------------- Instance Variables
/**
* Pathname to the server configuration file.
*/
protected String configFile = "conf/server.xml";
// XXX Should be moved to embedded
/**
* The shared extensions class loader for this server.
*/
protected ClassLoader parentClassLoader =
Catalina.class.getClassLoader();
/**
* The server component we are starting or stopping
*/
protected Server server = null;
/**
* Are we starting a new server?
*/
protected boolean starting = false;
/**
* Are we stopping an existing server?
*/
protected boolean stopping = false;
/**
* Shutdown hook.
*/
protected Thread shutdownHook = new CatalinaShutdownHook();
// ----------------------------------------------------------- Properties
public void setConfig(String file) {
configFile = file;
}
public void setConfigFile(String file) {
configFile = file;
}
public String getConfigFile() {
return configFile;
}
/**
* Set the shared extensions class loader.
*
* @param parentClassLoader The shared extensions class loader.
*/
public void setParentClassLoader(ClassLoader parentClassLoader) {
this.parentClassLoader = parentClassLoader;
}
/**
* Set the server instance we are configuring.
*
* @param server The new server
*/
public void setServer(Server server) {
this.server = server;
}
// --------------------------------------------------------- Main Program
/**
* The application main program.
*
* @param args Command line arguments
*/
public static void main(String args[]) {
(new Catalina()).process(args);
}
/**
* The instance main program.
*
* @param args Command line arguments
*/
public void process(String args[]) {
setAwait(true);
setCatalinaHome();
setCatalinaBase();
try {
if (arguments(args)) {
if (starting) {
load(args);
start();
} else if (stopping) {
stopServer();
}
}
} catch (Exception e) {
log.log(Level.WARNING, "Error processing command line arguments",
e);
}
}
// ------------------------------------------------------ Protected Methods
/**
* Process the specified command line arguments, and return
* <code>true if we should continue processing; otherwise
* return <code>false.
*
* @param args Command line arguments to process
*/
protected boolean arguments(String args[]) {
boolean isConfig = false;
if (args.length < 1) {
usage();
return (false);
}
for (int i = 0; i < args.length; i++) {
if (isConfig) {
configFile = args[i];
isConfig = false;
} else if (args[i].equals("-config")) {
isConfig = true;
} else if (args[i].equals("-debug")) {
debug = 1;
} else if (args[i].equals("-nonaming")) {
setUseNaming( false );
} else if (args[i].equals("-help")) {
usage();
return (false);
} else if (args[i].equals("start")) {
starting = true;
stopping = false;
} else if (args[i].equals("stop")) {
starting = false;
stopping = true;
} else {
usage();
return (false);
}
}
return (true);
}
/**
* Return a File object representing our configuration file.
*/
protected File configFile() {
File file = new File(configFile);
if (!file.isAbsolute())
file = new File(System.getProperty("catalina.base"), configFile);
return (file);
}
/**
* Create and configure the Digester we will be using for startup.
*/
protected Digester createStartDigester() {
long t1=System.currentTimeMillis();
// Initialize the digester
Digester digester = new CatalinaDigester();
if (debug>0)
digester.setDebug(debug);
digester.setValidating(false);
digester.setClassLoader(standardServerClassLoader);
// Configure the actions we will be using
digester.addObjectCreate("Server",
"org.apache.catalina.core.StandardServer",
"className");
digester.addSetProperties("Server");
digester.addSetNext("Server",
"setServer",
"org.apache.catalina.Server");
digester.addObjectCreate("Server/GlobalNamingResources",
"org.apache.catalina.deploy.NamingResources");
digester.addSetProperties("Server/GlobalNamingResources");
digester.addSetNext("Server/GlobalNamingResources",
"setGlobalNamingResources",
"org.apache.catalina.deploy.NamingResources");
digester.addObjectCreate("Server/Listener",
null, // MUST be specified in the element
"className");
digester.addSetProperties("Server/Listener");
digester.addSetNext("Server/Listener",
"addLifecycleListener",
"org.apache.catalina.LifecycleListener");
digester.addObjectCreate("Server/Service",
"org.apache.catalina.core.StandardService",
"className");
digester.addSetProperties("Server/Service");
digester.addSetNext("Server/Service",
"addService",
"org.apache.catalina.Service");
digester.addObjectCreate("Server/Service/Listener",
null, // MUST be specified in the element
"className");
digester.addSetProperties("Server/Service/Listener");
digester.addSetNext("Server/Service/Listener",
"addLifecycleListener",
"org.apache.catalina.LifecycleListener");
digester.addObjectCreate("Server/Service/Connector",
"org.apache.catalina.connector.CoyoteConnector",
"className");
digester.addRule("Server/Service/Connector",
new SetAllPropertiesRule());
digester.addSetNext("Server/Service/Connector",
"addConnector",
"org.apache.catalina.Connector");
digester.addObjectCreate("Server/Service/Connector/Factory",
"org.apache.catalina.connector.CoyoteServerSocketFactory",
"className");
digester.addSetProperties("Server/Service/Connector/Factory");
digester.addSetNext("Server/Service/Connector/Factory",
"setFactory",
"org.apache.catalina.net.ServerSocketFactory");
digester.addObjectCreate("Server/Service/Connector/Listener",
null, // MUST be specified in the element
"className");
digester.addSetProperties("Server/Service/Connector/Listener");
digester.addSetNext("Server/Service/Connector/Listener",
"addLifecycleListener",
"org.apache.catalina.LifecycleListener");
// Add RuleSets for nested elements
digester.addRuleSet(new NamingRuleSet("Server/GlobalNamingResources/"));
digester.addRuleSet(new EngineRuleSet("Server/Service/"));
digester.addRuleSet(new HostRuleSet("Server/Service/Engine/"));
digester.addRuleSet(new ContextRuleSet("Server/Service/Engine/Default"));
digester.addRuleSet(new NamingRuleSet("Server/Service/Engine/DefaultContext/"));
digester.addRuleSet(new ContextRuleSet("Server/Service/Engine/Host/Default"));
digester.addRuleSet(new NamingRuleSet("Server/Service/Engine/Host/DefaultContext/"));
digester.addRuleSet(new ContextRuleSet("Server/Service/Engine/Host/"));
digester.addRuleSet(new NamingRuleSet("Server/Service/Engine/Host/Context/"));
// When the 'engine' is found, set the parentClassLoader.
digester.addRule("Server/Service/Engine",
new SetParentClassLoaderRule(digester,
parentClassLoader));
long t2=System.currentTimeMillis();
if (log.isLoggable(Level.FINE))
log.fine("Digester for server.xml created " + ( t2-t1 ));
return (digester);
}
/**
* Create and configure the Digester we will be using for shutdown.
*/
protected Digester createStopDigester() {
// Initialize the digester
Digester digester = new Digester();
if (debug>0)
digester.setDebug(debug);
// Configure the rules we need for shutting down
digester.addObjectCreate("Server",
"org.apache.catalina.core.StandardServer",
"className");
digester.addSetProperties("Server");
digester.addSetNext("Server",
"setServer",
"org.apache.catalina.Server");
return (digester);
}
public void stopServer() {
if( server == null ) {
// Create and execute our Digester
Digester digester = createStopDigester();
digester.setClassLoader(Thread.currentThread().getContextClassLoader());
File file = configFile();
try {
InputSource is =
new InputSource("file://" + file.getAbsolutePath());
FileInputStream fis = new FileInputStream(file);
is.setByteStream(fis);
digester.push(this);
digester.parse(is);
fis.close();
} catch (Exception e) {
log.log(Level.SEVERE, "Catalina.stop: ", e);
System.exit(1);
}
}
// Stop the existing server
try {
Socket socket = new Socket("127.0.0.1", server.getPort());
OutputStream stream = socket.getOutputStream();
String shutdown = server.getShutdown();
for (int i = 0; i < shutdown.length(); i++)
stream.write(shutdown.charAt(i));
stream.flush();
stream.close();
socket.close();
} catch (IOException e) {
log.log(Level.SEVERE, "Catalina.stop: ", e);
System.exit(1);
}
}
/**
* Set the <code>catalina.base System property to the current
* working directory if it has not been set.
* @deprecated Use initDirs()
*/
public void setCatalinaBase() {
initDirs();
}
/**
* Set the <code>catalina.home System property to the current
* working directory if it has not been set.
* @deprecated Use initDirs()
*/
public void setCatalinaHome() {
initDirs();
}
/**
* Start a new server instance.
*/
public void load() {
initDirs();
// Before digester - it may be needed
initNaming();
// Create and execute our Digester
Digester digester = createStartDigester();
long t1 = System.currentTimeMillis();
Exception ex = null;
InputSource inputSource = null;
InputStream inputStream = null;
File file = null;
try {
file = configFile();
inputStream = new FileInputStream(file);
inputSource = new InputSource("file://" + file.getAbsolutePath());
} catch (Exception e) {
;
}
if (inputStream == null) {
try {
inputStream = getClass().getClassLoader()
.getResourceAsStream(getConfigFile());
inputSource = new InputSource
(getClass().getClassLoader()
.getResource(getConfigFile()).toString());
} catch (Exception e) {
;
}
}
// This should be included in catalina.jar
// Alternative: don't bother with xml, just create it manually.
if( inputStream==null ) {
try {
inputStream = getClass().getClassLoader()
.getResourceAsStream("server-embed.xml");
inputSource = new InputSource
(getClass().getClassLoader()
.getResource("server-embed.xml").toString());
} catch (Exception e) {
;
}
}
if (inputStream == null && file != null) {
log.warning("Can't load server.xml from " +
file.getAbsolutePath());
return;
}
try {
inputSource.setByteStream(inputStream);
digester.push(this);
digester.parse(inputSource);
inputStream.close();
} catch (Exception e) {
log.log(Level.WARNING, "Catalina.start: ", e);
return;
}
// Start the new server
if (server instanceof Lifecycle) {
try {
server.initialize();
} catch (LifecycleException e) {
log.log(Level.SEVERE, "Catalina.start", e);
}
}
long t2 = System.currentTimeMillis();
log.info("Initialization processed in " + (t2 - t1) + " ms");
}
/*
* Load using arguments
*/
public void load(String args[]) {
setCatalinaHome();
setCatalinaBase();
try {
if (arguments(args))
load();
} catch (Exception e) {
log.log(Level.WARNING, "Error loading configuration", e);
}
}
public void create() {
}
public void destroy() {
}
/**
* Start a new server instance.
*/
public void start() {
if (server == null) {
load();
}
long t1 = System.currentTimeMillis();
// Start the new server
if (server instanceof Lifecycle) {
try {
((Lifecycle) server).start();
} catch (LifecycleException e) {
log.log(Level.SEVERE, "Catalina.start: ", e);
}
}
long t2 = System.currentTimeMillis();
log.info("Server startup in " + (t2 - t1) + " ms");
try {
// Register shutdown hook
Runtime.getRuntime().addShutdownHook(shutdownHook);
} catch (Throwable t) {
// This will fail on JDK 1.2. Ignoring, as Tomcat can run
// fine without the shutdown hook.
}
if (await) {
await();
stop();
}
}
/**
* Stop an existing server instance.
*/
public void stop() {
try {
// Remove the ShutdownHook first so that server.stop()
// doesn't get invoked twice
Runtime.getRuntime().removeShutdownHook(shutdownHook);
} catch (Throwable t) {
// This will fail on JDK 1.2. Ignoring, as Tomcat can run
// fine without the shutdown hook.
}
// Shut down the server
if (server instanceof Lifecycle) {
try {
((Lifecycle) server).stop();
} catch (LifecycleException e) {
log.log(Level.SEVERE, "Catalina.stop", e);
}
}
}
/**
* Await and shutdown.
*/
public void await() {
server.await();
}
/**
* Print usage information for this application.
*/
protected void usage() {
System.out.println
("usage: java org.apache.catalina.startup.Catalina"
+ " [ -config {pathname} ] [ -debug ]"
+ " [ -nonaming ] { start | stop }");
}
// --------------------------------------- CatalinaShutdownHook Inner Class
// XXX Should be moved to embedded !
/**
* Shutdown hook which will perform a clean shutdown of Catalina if needed.
*/
protected class CatalinaShutdownHook extends Thread {
public void run() {
if (server != null) {
Catalina.this.stop();
}
}
}
}
// ------------------------------------------------------------ Private Classes
/**
* Rule that sets the parent class loader for the top object on the stack,
* which must be a <code>Container.
*/
final class SetParentClassLoaderRule extends Rule {
public SetParentClassLoaderRule(Digester digester,
ClassLoader parentClassLoader) {
super(digester);
this.parentClassLoader = parentClassLoader;
}
ClassLoader parentClassLoader = null;
public void begin(Attributes attributes) throws Exception {
if (digester.getDebug() >= 1)
digester.log("Setting parent class loader");
Container top = (Container) digester.peek();
top.setParentClassLoader(parentClassLoader);
}
}
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