costin 01/02/27 09:16:51 Added: src/share/org/apache/tomcat/modules/config ProfileLoader.java Log: Initial version of ProfileLoader. It's a very simple class - it will read a profile description ( the config attribute ) and store the set of modules and their config. When a context is loaded with a propery "profile" matching the profile name, all the modules will be added to the context. For example: <ProfileLoader config="conf/profile.xml" name="foo" /> ... <Context profile="foo" ... /> The profile has 2 roles: - simplified config ( you don't have to specify Jdbc auth + specific logger options for each module ) - ( later ) allow groups of contexts to share some classes ( i.e. form a hierarchy of class loaders ) - this is very important for inter-context communication, without requiring libs shared by few apps to be forced in the CLASSPATH ( at global level ). Revision Changes Path 1.1 jakarta-tomcat/src/share/org/apache/tomcat/modules/config/ProfileLoader.java Index: ProfileLoader.java =================================================================== /* * ==================================================================== * * The Apache Software License, Version 1.1 * * Copyright (c) 1999 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. 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For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * * [Additional notices, if required by prior licensing conditions] * */ package org.apache.tomcat.modules.config; import java.beans.*; import java.io.*; import java.lang.reflect.*; import java.util.Hashtable; import java.util.*; import java.net.*; import org.apache.tomcat.util.res.StringManager; import org.apache.tomcat.util.io.FileUtil; import org.apache.tomcat.util.xml.*; import org.apache.tomcat.core.*; import org.apache.tomcat.modules.server.*; import org.apache.tomcat.util.log.*; import org.xml.sax.*; /** * This module can be used to specify groups of modules and * add them automcatically to all web applications declared as * belonging to the profile. * * ( not implemented ) A profile can also declare a set of jars * that will be shared by all the apps belonging to that profile. * This allows apps to share objects and attributes. * * @author Costin Manolache */ public class ProfileLoader extends BaseInterceptor { Hashtable profiles=new Hashtable(); public ProfileLoader() { } // -------------------- Properties -------------------- String configFile=null; static final String DEFAULT_CONFIG="conf/profile.xml"; public void setConfig( String s ) { configFile=s; } public void addProfile( Profile p ) { String name=p.getName(); if( debug > -1 ) log ( "Adding " + name ); if( name==null ) return; profiles.put( name, p ); } // -------------------- Contexts -------------------- /** Adjust paths for a context - make the base and all loggers * point to canonical paths. */ public void addContext( ContextManager cm, Context ctx) throws TomcatException { String ctxProfile=ctx.getProperty("profile"); if( ctxProfile==null ) ctxProfile="default"; Profile p=(Profile)profiles.get( ctxProfile ); if( p==null ) { log( "Can't find profile " + ctxProfile ); p=(Profile)profiles.get("default"); } if( p==null ) throw new TomcatException( "Can't load profile"); Enumeration en=p.getModules(); while( en.hasMoreElements()) { BaseInterceptor bi=(BaseInterceptor)en.nextElement(); log( ctx + " " + bi ); ctx.addInterceptor( bi ); } } // -------------------- Reade config and init -------------------- /** * Read the profiles. */ public void addInterceptor(ContextManager cm, Context ctx, BaseInterceptor module) throws TomcatException { if( this != module ) return; XmlMapper xh=new XmlMapper(); xh.setDebug( debug ); addProfileRules( xh ); addTagRules( cm, xh ); if (configFile == null) configFile=DEFAULT_CONFIG; File f=new File(configFile); if ( !f.isAbsolute()) f=new File( cm.getHome(), File.separator + configFile); if( f.exists() ){ try { xh.readXml(f, this ); } catch( Exception ex ) { ex.printStackTrace(); throw new TomcatException(ex); } } } // -------------------- Xml reading details -------------------- public void addTagRules( ContextManager cm, XmlMapper xh ) throws TomcatException { Hashtable modules=(Hashtable)cm.getNote("modules"); if( modules==null) return; Enumeration keys=modules.keys(); while( keys.hasMoreElements() ) { String name=(String)keys.nextElement(); String classN=(String)modules.get( name ); String tag="Profile" + "/" + name; xh.addRule( tag , xh.objectCreate( classN, null )); xh.addRule( tag , xh.setProperties()); xh.addRule( tag, new XmlAction() { public void end(SaxContext ctx ) throws Exception { BaseInterceptor obj=(BaseInterceptor) ctx.currentObject(); Profile parent=(Profile) ctx.previousObject(); parent.addModule( obj ); } }); } } public void addProfileRules( XmlMapper xh ) { xh.addRule( "Profile", new XmlAction() { public void start(SaxContext ctx ) throws Exception { Profile p=new Profile(); AttributeList attributes = ctx.getCurrentAttributes(); p.setName( attributes.getValue("name")); ctx.pushObject( p ); } public void end(SaxContext ctx ) { ProfileLoader parent=(ProfileLoader) ctx.previousObject(); Profile obj=(Profile) ctx.currentObject(); System.out.println("XXX " + obj.getName()); parent.addProfile( obj ); } public void cleanup( SaxContext ctx ) { ctx.popObject(); } }); } } class Profile { String name; Vector modules=new Vector(); public Profile() {}; public String getName() { return name; } public void setName( String s ) { name=s; } public Enumeration getModules() { return modules.elements(); } public void addModule(BaseInterceptor bi) { modules.addElement( bi ); } } --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]