/*
 * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//chain/src/java/org/apache/commons/chain/web/ChainResources.java,v 1.2 2003/10/12 09:10:40 rdonkin Exp $
 * $Revision: 1.2 $
 * $Date: 2003/10/12 09:10:40 $
 *
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999-2003 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. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowledgement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgement may appear in the software itself,
 *    if and wherever such third-party acknowledgements normally appear.
 *
 * 4. The names "The Jakarta Project", "Commons", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */


package org.apache.commons.chain.web;


import java.net.URL;
import javax.servlet.ServletContext;
import org.apache.commons.chain.Catalog;
import org.apache.commons.chain.config.ConfigParser;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;


/**
 * <p>Utility methods for loading class loader and web application resources
 * to configure a {@link Catalog}.  These methods are shared between
 * <code>ChainListener</code> and <code>ChainServlet</code>.</p>
 *
 * @author Craig R. McClanahan
 * @author Ted Husted
 */

final class ChainResources {


    // -------------------------------------------------------- Static Variables


    /**
     * <p>The <code>Log</code> instance for this class.</p>
     */
    private static final Log log = LogFactory.getLog(ChainListener.class);


    // ---------------------------------------------------------- Static Methods


    /**
     * <p>Parse the specified class loader resources.</p>
     *
     * @param catalog {@link Catalog} we are populating
     * @param resources Comma-delimited list of resources (or <code>null</code>)
     * @param parser {@link ConfigParser} to use for parsing
     */
    static void parseClassResources(Catalog catalog, String resources,
                                    ConfigParser parser) {

        ClassLoader loader =
            Thread.currentThread().getContextClassLoader();
        if (loader == null) {
            loader = ChainResources.class.getClassLoader();
        }
        String path = null;
        try {
            while (true) {
                int comma = resources.indexOf(",");
                if (comma < 0) {
                    path = resources.trim();
                    resources = "";
                } else {
                    path = resources.substring(0, comma);
                    resources = resources.substring(comma + 1);
                }
                if (path.length() < 1) {
                    break;
                }
                URL url = loader.getResource(path);
                if (url == null) {
                    throw new IllegalStateException
                        ("Missing chain config resource '" + path + "'");
                }
                if (log.isDebugEnabled()) {
                    log.debug("Loading chain config resource '" + path + "'");
                }
                parser.parse(catalog, url);
            }
        } catch (Exception e) {
            throw new RuntimeException
                ("Exception parsing chain config resource '" + path + "': " +
                 e.getMessage());
        }

    }


    /**
     * <p>Parse the specified web application resources.</p>
     *
     * @param catalog {@link Catalog} we are populating
     * @param context <code>ServletContext</code> for this web application
     * @param resources Comma-delimited list of resources (or <code>null</code>)
     * @param parser {@link ConfigParser} to use for parsing
     */
    static void parseWebResources(Catalog catalog, ServletContext context,
                                  String resources,
                                  ConfigParser parser) {

        String path = null;
        try {
            while (true) {
                int comma = resources.indexOf(",");
                if (comma < 0) {
                    path = resources.trim();
                    resources = "";
                } else {
                    path = resources.substring(0, comma);
                    resources = resources.substring(comma + 1);
                }
                if (path.length() < 1) {
                    break;
                }
                URL url = context.getResource(path);
                if (url == null) {
                    throw new IllegalStateException
                        ("Missing chain config resource '" + path + "'");
                }
                if (log.isDebugEnabled()) {
                    log.debug("Loading chain config resource '" + path + "'");
                }
                parser.parse(catalog, url);
            }
        } catch (Exception e) {
            throw new RuntimeException
                ("Exception parsing chain config resource '" + path + "': " +
                 e.getMessage());
        }

    }


}

@@ -152,17 +152,17 @@
 ava,v 1.
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@@ -166,27 +166,27 @@
 /10/
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+20 17:12:07 mart
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@@ -204,17 +204,17 @@
 sion: 1.
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@@ -230,19 +230,19 @@
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@@ -3719,24 +3719,25 @@
 og(Chain
-Listener
+Resources
 .class);

Fix log class name.