001    /*
002     * mesopotamia @mesopotamia.version@
003     * Multilingual parser and repository. 
004     * Copyright (C) 2005  Hammurapi Group
005     *
006     * This program is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 2 of the License, or (at your option) any later version.
010     *
011     * This program is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with this library; if not, write to the Free Software
018     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
019     *
020     * URL: http://http://www.hammurapi.biz
021     * e-Mail: support@hammurapi.biz
022     */
023    package org.mesopotamia;
024    
025    import java.io.File;
026    import java.util.ArrayList;
027    import java.util.Collection;
028    
029    import org.w3c.dom.Node;
030    import org.w3c.dom.NodeList;
031    
032    import biz.hammurapi.config.Component;
033    import biz.hammurapi.config.ConfigurationException;
034    import biz.hammurapi.config.Context;
035    import biz.hammurapi.config.DomConfigurable;
036    import biz.hammurapi.config.Wrapper;
037    import biz.hammurapi.xml.dom.AbstractDomObject;
038    import biz.hammurapi.xml.dom.DOMUtils;
039    
040    
041    public class FileSourceIteratorComponent implements Component, Wrapper, DomConfigurable {
042            private FileSourceIterator master;
043            private Collection<File> sources=new ArrayList<File>();
044    
045            public FileSourceIteratorComponent() {
046                    super();
047            }
048    
049            public void start() throws ConfigurationException {
050                    master=new FileSourceIterator(sources);
051            }
052    
053            public void stop() throws ConfigurationException {
054                    master=null;
055                    sources.clear();
056            }
057    
058            public void setOwner(Object owner) {
059                    // This component doesnt' care about the environment.
060            }
061    
062            public Object getMaster() {
063                    return master;
064            }
065    
066            public void configure(Node configNode, Context context, ClassLoader classLoader) throws ConfigurationException {
067                    try {
068                            NodeList nl=DOMUtils.selectNodeList(configNode, "source");
069                            for (int i=0, l=nl.getLength(); i<l; ++i) {
070                                    sources.add(new File(AbstractDomObject.getElementText(nl.item(i))));
071                            }
072                    } catch (Exception e) {
073                            throw new ConfigurationException("Cannot configure "+this+": "+e, e);
074                    }
075                    
076            }
077    
078    }