/* * Copyright (c) 2005, John Mettraux, OpenWFE.org * All rights reserved. *  * Redistribution and use in source and binary forms, with or without  * modification, are permitted provided that the following conditions are met: *  * . Redistributions of source code must retain the above copyright notice, this *   list of conditions and the following disclaimer.   *  * . 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. *  * . Neither the name of the "OpenWFE" nor the names of its contributors may be *   used to endorse or promote products derived from this software without *   specific prior written permission. *  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"  * AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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. * * $Id: XmlQueryMap.java,v 1.8 2005/05/17 16:40:58 jmettraux Exp $ *///// XmlQueryMap.java//// john.mettraux@openwfe.org//// generated with // jtmpl 1.1.01 2004/05/19 (john.mettraux@openwfe.org)//package openwfe.org.query.impl;import openwfe.org.Utils;import openwfe.org.MapUtils;import openwfe.org.AbstractService;import openwfe.org.ServiceException;import openwfe.org.ApplicationContext;import openwfe.org.xml.XmlUtils;import openwfe.org.xconf.XconfBuilder;import openwfe.org.xconf.XconfElementBuilder;import openwfe.org.query.QueryMap;import openwfe.org.query.QueryException;import openwfe.org.query.item.Query;import openwfe.org.query.item.QueryItem;/** * An xml query map takes as input two things : a query config * and a query map , the query config tells which classes will be used * as query items, and the query map tells which queries have been defined. * * <p><font size=2>CVS Info : * <br>$Author: jmettraux $ * <br>$Id: XmlQueryMap.java,v 1.8 2005/05/17 16:40:58 jmettraux Exp $ </font> * * @author john.mettraux@openwfe.org */public class XmlQueryMap    extends AbstractService    implements QueryMap{    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger        .getLogger(XmlQueryMap.class.getName());    //    // CONSTANTS & co    /**     * The parameter 'queryConfigurationFile' tells this query map where to     * find the file telling which classes are mapped behind the tag names     * in the query maps.     */    public final static String P_QUERY_CONFIG        = "queryConfigurationFile";    //    // FIELDS    private XmlQueryConfiguration config = null;    //private java.util.Map builders = new java.util.HashMap(7);    private java.util.Map rootQueries = new java.util.HashMap(7);    //    // CONSTRUCTORS    /**     * Inits this XmlQueryMap.     */    public void init         (final String serviceName,          final ApplicationContext context,          final java.util.Map serviceParams)    throws         ServiceException    {        super.init(serviceName, context, serviceParams);        String queryConfigFileName =             MapUtils.getAsString(serviceParams, P_QUERY_CONFIG);        if (queryConfigFileName == null)        {            throw new ServiceException                ("Mandatory parameter '"+P_QUERY_CONFIG+                 "' is missing. Cannot init().");        }        queryConfigFileName = Utils.expandUrl            (context.getApplicationDirectory(), queryConfigFileName);        this.config = new XmlQueryConfiguration(queryConfigFileName);    }    //    // METHODS from QueryMap    public QueryItem lookupQuery (final String queryUrl)        throws QueryException    {        log.debug("lookupQuery() queryUrl >"+queryUrl+"<");        final String[] url = queryUrl.split("#");        final String docUrl = url[0];        Query rootQuery = (Query)this.rootQueries.get(docUrl);        if (rootQuery != null)            return lookupQuery(rootQuery, url, 1);        log.debug("lookupQuery() parsing...");        try        {            final org.jdom.Element elt = XmlUtils.extractXml(docUrl, false);            rootQuery = (Query)getConfig().determineQueryItem(null, elt);            this.rootQueries.put(docUrl, rootQuery);        }        catch (final Exception e)        {            throw new QueryException                ("Failed to parse "+docUrl, e);        }        return lookupQuery(rootQuery, url, 1);    }    private static QueryItem lookupQuery         (final Query query, final String[] url, final int index)    throws         QueryException    {        log.debug("lookupQuery() index is "+index);        log.debug("lookupQuery() into '"+query.getName()+"'");        //log.debug("lookupQuery() into\n"+query);        log.debug("lookupQuery() for '"+url[index]+"'");        final QueryItem qi = query.get(url[index]);        if (qi == null)        {            log.debug("lookupQuery() found null, returning null");            return null;        }        if (index >= url.length-1) return qi;        if ( ! (qi instanceof Query))        {            throw new QueryException                 ("Cannot dive into non-scope '"+url[index]+"'");        }        //log.debug("lookupQuery() diving into >"+((Query)qi).getName()+"<");        return lookupQuery((Query)qi, url, index+1);    }    //    // METHODS from Service    //    // METHODS    public XmlQueryConfiguration getConfig ()    {        return this.config;    }    //    // STATIC METHODS}