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package org.apache.catalina.startup;


import org.apache.catalina.core.StandardServer;
import org.glassfish.logging.annotation.LogMessageInfo;

import java.io.File;
import java.lang.reflect.Method;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;


/**
 * 

General purpose wrapper for command line tools that should execute in an * environment with the common class loader environment set up by Catalina. * This should be executed from a command line script that conforms to * the following requirements:

*
    *
  • Passes the catalina.home system property configured with * the pathname of the Tomcat installation directory.
  • *
  • Sets the system classpath to include bootstrap.jar and * $JAVA_HOME/lib/tools.jar.
  • *
* *

The command line to execute the tool looks like:

*
 *   java -classpath $CLASSPATH org.apache.catalina.startup.Tool \
 *     ${options} ${classname} ${arguments}
 * 
* *

with the following replacement contents: *

    *
  • ${options} - Command line options for this Tool wrapper. * The following options are supported: *
      *
    • -ant : Set the ant.home system property * to corresponding to the value of catalina.home * (useful when your command line tool runs Ant).
    • *
    • -common : Add common/classes and * common/lib *
    • -debug : Enable debugging messages from this wrapper.
    • *
    • -server : Add server/classes and * server/lib to the class loader repositories.
    • *
    • -shared : Add shared/classes and * shared/lib to the class loader repositories.
    • *
    *
  • ${classname} - Fully qualified Java class name of the * application's main class.
  • *
  • ${arguments} - Command line arguments to be passed to * the application's main() method.
  • *
* * @author Craig R. McClanahan * @version $Revision: 1.3 $ $Date: 2006/03/12 01:27:07 $ */ public final class Tool { @LogMessageInfo( message = "Must set 'catalina.home' system property", level = "SEVERE", cause = "Did not set 'catalina.home'", action = "Verify that 'catalina.home' was passed" ) public static final String MUST_SET_SYS_PROPERTY = "AS-WEB-CORE-00470"; @LogMessageInfo( message = "Class loader creation threw exception", level = "SEVERE", cause = "Could not create a new class loader", action = "Verify directory paths" ) public static final String CLASS_LOADER_CREATION_EXCEPTION = "AS-WEB-CORE-00471"; @LogMessageInfo( message = "Exception creating instance of {0}", level = "SEVERE", cause = "Could not load application class", action = "Verify the class name" ) public static final String CREATING_INSTANCE_EXCEPTION = "AS-WEB-CORE-00472"; @LogMessageInfo( message = "Exception locating main() method", level = "SEVERE", cause = "Could not locate the static main() method of the application class", action = "Verify the access permission" ) public static final String LOCATING_MAIN_METHOD_EXCEPTION = "AS-WEB-CORE-00473"; @LogMessageInfo( message = "Exception calling main() method", level = "SEVERE", cause = "Could not invoke main() method", action = "Verify the underlying method is inaccessible, and parameter values" ) public static final String CALLING_MAIN_METHOD_EXCEPTION = "AS-WEB-CORE-00474"; @LogMessageInfo( message = "Usage: java org.apache.catalina.startup.Tool [] []", level = "INFO" ) public static final String USAGE_INFO = "AS-WEB-CORE-00475"; // ------------------------------------------------------- Static Variables /** * Set ant.home system property? */ private static boolean ant = false; /** * The pathname of our installation base directory. */ private static String catalinaHome = System.getProperty("catalina.home"); /** * Include common classes in the repositories? */ private static boolean common = false; /** * Enable debugging detail messages? * private static boolean debug = false; */ private static final Logger log = StandardServer.log; private static final ResourceBundle rb = log.getResourceBundle(); /** * Include server classes in the repositories? */ private static boolean server = false; /** * Include shared classes in the repositories? */ private static boolean shared = false; // ----------------------------------------------------------- Main Program /** * The main program for the bootstrap. * * @param args Command line arguments to be processed */ public static void main(String args[]) { // Verify that "catalina.home" was passed. if (catalinaHome == null) { log.log(Level.SEVERE, MUST_SET_SYS_PROPERTY); System.exit(1); } // Process command line options int index = 0; while (true) { if (index == args.length) { usage(); System.exit(1); } if ("-ant".equals(args[index])) ant = true; else if ("-common".equals(args[index])) common = true; //else if ("-debug".equals(args[index])) // debug = true; else if ("-server".equals(args[index])) server = true; else if ("-shared".equals(args[index])) shared = true; else break; index++; } if (index > args.length) { usage(); System.exit(1); } // Set "ant.home" if requested if (ant) System.setProperty("ant.home", catalinaHome); // Construct the class loader we will be using ClassLoader classLoader = null; try { if (log.isLoggable(Level.FINE)) { log.log(Level.FINE, "Constructing class loader"); ClassLoaderFactory.setDebug(1); } ArrayList packed = new ArrayList(); ArrayList unpacked = new ArrayList(); unpacked.add(new File(catalinaHome, "classes")); packed.add(new File(catalinaHome, "lib")); if (common) { unpacked.add(new File(catalinaHome, "common" + File.separator + "classes")); packed.add(new File(catalinaHome, "common" + File.separator + "lib")); } if (server) { unpacked.add(new File(catalinaHome, "server" + File.separator + "classes")); packed.add(new File(catalinaHome, "server" + File.separator + "lib")); } if (shared) { unpacked.add(new File(catalinaHome, "shared" + File.separator + "classes")); packed.add(new File(catalinaHome, "shared" + File.separator + "lib")); } classLoader = ClassLoaderFactory.createClassLoader (unpacked.toArray(new File[unpacked.size()]), packed.toArray(new File[packed.size()]), null); } catch (Throwable t) { log.log(Level.SEVERE, CLASS_LOADER_CREATION_EXCEPTION, t); System.exit(1); } Thread.currentThread().setContextClassLoader(classLoader); // Load our application class Class clazz = null; String className = args[index++]; try { if (log.isLoggable(Level.FINE)) log.log(Level.FINE, "Loading application class " + className); clazz = classLoader.loadClass(className); } catch (Throwable t) { String msg = MessageFormat.format(rb.getString(CREATING_INSTANCE_EXCEPTION), className); log.log(Level.SEVERE, msg, t); System.exit(1); } // Locate the static main() method of the application class Method method = null; String params[] = new String[args.length - index]; System.arraycopy(args, index, params, 0, params.length); try { if (log.isLoggable(Level.FINE)) log.log(Level.FINE, "Identifying main() method"); String methodName = "main"; Class paramTypes[] = new Class[1]; paramTypes[0] = params.getClass(); method = clazz.getMethod(methodName, paramTypes); } catch (Throwable t) { log.log(Level.SEVERE, LOCATING_MAIN_METHOD_EXCEPTION, t); System.exit(1); } // Invoke the main method of the application class try { if (log.isLoggable(Level.FINE)) log.log(Level.FINE, "Calling main() method"); Object paramValues[] = new Object[1]; paramValues[0] = params; method.invoke(null, paramValues); } catch (Throwable t) { log.log(Level.SEVERE, CALLING_MAIN_METHOD_EXCEPTION, t); System.exit(1); } } /** * Display usage information about this tool. */ private static void usage() { if (log.isLoggable(Level.INFO)) { log.log(Level.INFO, USAGE_INFO); } } }




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