source: main/trunk/greenstone3/src/java/org/greenstone/server/Server3Settings.java

package org.greenstone.server;

import java.awt.*;
import java.awt.event.*;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import javax.swing.*;

import org.w3c.dom.*;
import org.xml.sax.InputSource;

import org.greenstone.util.ScriptReadWrite;

import org.greenstone.util.GlobalProperties;
import org.greenstone.gsdl3.util.GSEntityResolver;
import org.greenstone.gsdl3.util.GSXML;
import org.greenstone.gsdl3.util.XMLConverter;

import org.greenstone.server.BaseServerSettings;

public class Server3Settings extends BaseServerSettings
{
    protected String servletDefault = null;
    protected JComboBox servlet_combobox;
    protected HashMap<String, String> url_mappings = null;

    public Server3Settings(BaseServer server) 
    {
    super(server);
    }

    protected JPanel createServletPanel()
    {
    JLabel servlet_label = new JLabel(server.dictionary.get(BaseServer.Property.SERVER_SETTINGS+".URL"));

    this.servletDefault = server.config_properties.getProperty(BaseServer.Property.DEFAULT_SERVLET);

    servlet_combobox = new JComboBox();
    servlet_combobox.setMaximumRowCount(5);
    servlet_combobox.setBackground(bg_color);

    File web_xml = new File(GlobalProperties.getGSDL3Home() + File.separator + "WEB-INF" + File.separator + "web.xml");
    XMLConverter converter = new XMLConverter();
    // web.xml now includes the new file servlets.xml which defines entities used therein
    // So when loading web.xml's DOM, need to resolve entities in web.xml. And for this, 
    // need to instruct the entity resolver to load included files relative to web.xml's location
    Document web_config = converter.getDOM(web_xml, new GSEntityResolver(web_xml.getParentFile())); 
    if (web_config == null) {
        logger.error("web.xml is null! "+web_xml.getAbsolutePath());
        return null;
    }

    NodeList servlet_mappings = web_config.getElementsByTagName("servlet-mapping");
    // make a little map class
    url_mappings = new HashMap<String, String>();
    for (int i = 0; i < servlet_mappings.getLength(); i++) {
        Element map = (Element) servlet_mappings.item(i);
        Element servlet_name_elem = (Element) GSXML.getChildByTagName(map, "servlet-name");
        String name = GSXML.getNodeText(servlet_name_elem);
        Element url_pattern_elem = (Element) GSXML.getChildByTagName(map, "url-pattern");
        String pattern = GSXML.getNodeText(url_pattern_elem);
        // Ignore the Axis servlets plus other non-library servlets
        if (name.equals("AxisServlet") || name.equals("oaiserver") || name.equals("mat") || name.equals("grabtext") ) {
        continue;
        }
          
        servlet_combobox.addItem(name.trim());
        url_mappings.put(name, pattern);
        
        
        if (pattern.replaceAll("/\\*","").equals(servletDefault)) { // urlmapping maybe something like "/library/*", want "/library"
        servlet_combobox.setSelectedItem(name);
        }
        
    }

        JPanel comb_panel = new JPanel();
    comb_panel.setLayout(new FlowLayout(FlowLayout.LEFT));
    comb_panel.add(servlet_label);
    comb_panel.add(servlet_combobox);

    return comb_panel;
    }

    public boolean[] onSave()
    {
    boolean hasChanged = false;
    boolean requireRestart = false;
    String urlMapping = url_mappings.get(servlet_combobox.getSelectedItem());
    if(urlMapping.endsWith("/*")) { // urlmapping maybe something like "/library/*"
        urlMapping = urlMapping.substring(0, urlMapping.length()-2);
    }
    
    if (!servletDefault.equals(urlMapping)) { 
        hasChanged = true;
        requireRestart = true;
    }
    boolean[] returnValues = { hasChanged, requireRestart };
    return returnValues;
    }

    public void save(ScriptReadWrite scriptReadWrite, ArrayList<String> newFileLines) 
    {
      String newAutoEnter = String.valueOf(autoEnter.isSelected());
      newFileLines = scriptReadWrite.queryReplace(newFileLines, BaseServer.Property.AUTOSTART, newAutoEnter);

      String newKeepPort = String.valueOf(keepPortToggle.isSelected());
      newFileLines = scriptReadWrite.queryReplace(newFileLines, BaseServer.Property.KEEPPORT, newKeepPort);
    
    // external access - BaseServerSettings.actionPerformed() would have updated this value
    // Its possible values are specific to the version of Greenstone: 0 or 1 for GS2 (true or false for GS3)
    newFileLines = scriptReadWrite.queryReplace(newFileLines, BaseServer.Property.ALLOW_EXTERNAL_ACCESS, externalaccess ? "true" : "false");

    String newServletDef = (String) servlet_combobox.getSelectedItem();
    String servletDefName = url_mappings.get(newServletDef);
    if(servletDefName.endsWith("/*")) { // urlmapping maybe something like "/library/*"     
      servletDefName = servletDefName.substring(0, servletDefName.length()-2);
    }
    newFileLines = scriptReadWrite.queryReplace(newFileLines,BaseServer.Property.DEFAULT_SERVLET, servletDefName);
    }

}