package org.apache.artimus.http;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionServlet;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.apache.artimus.article.http.Form;
import org.apache.artimus.search.Engine;
import org.apache.artimus.article.Access;
/**
* Create search engine indexes used by application.
* @author Ted Husted
* @version $Revision: 1.2 $ $Date: 2002/01/01 13:46:07 $
**/
public final class CreateIndex extends Action {
// --------------------------------------------------------- Instances Variables
// --------------------------------------------------------- Public Methods
public ActionForward perform(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
response.setContentType("text/plain");
PrintWriter printWriter = response.getWriter();
ArrayList list = null;
Form article = null;
// - Retrieve collection of items in databse
// -- For larger collections, the results would have to
// -- batched in segments of, say, 100 records each
// - ResultUtils.getCollection is the underlying
// - actor here, and returns an ArrayList
try {
// - Create an indexWriter and start a fresh index
IndexWriter index = Engine.getIndexWriter(true);
// - Run through list and create a document for each article
// -- Store keyword and title since they are needed for the search list
// -- Be sure not to pass any blank strings
list = (ArrayList)
Access.select(new Form());
for (int i=0; i<list.size(); i++) {
article = (Form) list.get(i);
// - Add document to index
Access.index(
article.getArticle(),article.getContributor(),article.getCreator(),
article.getTitle(),article.getContent(),index);
// - Report progress
printWriter.print(i); printWriter.print(':');
printWriter.println(article.getTitle());
}
// - Final report
printWriter.print(index.docCount());
printWriter.println(" articles indexed.");
// - Optimize and close index writer
index.optimize();
index.close();
}
catch (Exception e) {
e.printStackTrace();
StringBuffer sb = new StringBuffer("Exception: " + e);
printWriter.println(sb.toString());
}
// -- Process complete ---
printWriter.println("DONE");
return(null);
} // ---- End perform ----
} // ---- End CreateIndex ----
/*
* $Header: /home/cvs/jakarta-struts/contrib/artimus/WEB-INF/src/java/org/apache/artimus/http/CreateIndex.java,v 1.2 2002/01/01 13:46:07 husted Exp $
* $Revision: 1.2 $
* $Date: 2002/01/01 13:46:07 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 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 acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", 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 Group.
*
* 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/>.
*
**/