/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nutch.webapp.controller;
import java.io.IOException;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.nutch.searcher.Hit;
import org.apache.nutch.searcher.HitDetails;
import org.apache.nutch.searcher.NutchBean;
import org.apache.nutch.searcher.Query;
import org.apache.nutch.webapp.common.ServiceLocator;
import org.apache.struts.tiles.ComponentContext;
public class ExplainController extends NutchController {
public void nutchPerform(ComponentContext tileContext,
HttpServletRequest request, HttpServletResponse response,
ServletContext servletContext) throws ServletException, IOException {
ServiceLocator locator = getServiceLocator(request);
NutchBean bean = locator.getNutchBean();
Hit hit = new Hit(Integer.parseInt(request.getParameter("idx")), Integer
.parseInt(request.getParameter("id")));
HitDetails details = bean.getDetails(hit);
Query query = Query.parse(request.getParameter("query"), locator
.getConfiguration());
// put explanation and hitDetails into request so view can access them
request.setAttribute("explanation", bean.getExplanation(query, hit));
request.setAttribute("hitDetails", details.toHtml());
request.setAttribute("query", query);
}
}