Search.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.turro.elephant.search;
 
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import javax.servlet.ServletException;
import org.turro.elephant.context.IElement;
import org.turro.elephant.impl.abstracts.AbstractElement;
import org.turro.elephant.impl.util.Localizer;
import org.turro.elephant.layout.IManageable;
import org.turro.elephant.layout.IRenderable;
import org.turro.elephant.security.IDefendable;
import org.turro.elephant.web.ElContext;
import org.turro.elephant.web.ElContextMap;
 
public class Search extends AbstractElement implements IElement, IRenderable, IManageable, IDefendable {
  
  protected Localizer localizer;
  protected FoundList results = null;
  
  public Search() {
  }
  
  public ISearchable[] getElements() {
    HashSet els = new HashSet();
    IElement sel;
    for(ElContext ctx : ElContextMap.getInstance().values()) {
      if(ctx.isSelectable() && ctx.isInRole() && !ctx.getWebContext().isDynamic()) {
        if(ctx instanceof ISearchable) {
          els.add(ctx);
        }
        sel = ctx.getElement();
        if(sel instanceof ISearchable) {
          els.add(sel);
        }
      }
    }
    return (ISearchable[])els.toArray(new ISearchable[0]);
  }
  
  public FoundList getResults() {
    return search(
            getConstructor().getParameter("query"),
            getConstructor().getParameter("ic") != null);
  }
  
 
  public FoundList search(String value, boolean ignoreCase) {
    if(results == null) {
      results = new FoundList();
      if(value != null && value.length() > 0) {
        ISearchable[] els = getElements();
        for(int i = 0; i < els.length; i++) {
          results.addResults((els[i]).search(value, ignoreCase));
        }
      }
    }
    return results;
  }
  
  @Override
  public void startConstruction() throws ServletException, IOException {
    getConstructor().addCSS("/_internal/css/search.css");
    localizer = getConstructor().getLocalizer();
    PrintWriter out = getConstructor().getOut();
    out.print(getStart());
    out.print(getStartBody());
    getConstructor().setRequestAttribute("_search", this);
    getConstructor().includeContent(
            "/WEB-INF/elephant/elements/search.jsp"
            );
    out.print(getEndBody());
    out.print(getEnd());
  }
  
  @Override
  public String getStart() {
    return "<div class='search'>";
  }
  
  @Override
  public String getEnd() {
    return "</div>";
  }
 
}