helpsearchcontroller.java

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package net.java.workeffort.webapp.action;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.java.workeffort.service.domain.PageResult;
import net.java.workeffort.webapp.support.ApplicationSearcher;
import net.java.workeffort.webapp.support.HelpSearchQuery;

import org.springframework.validation.BindException;
import org.springframework.web.servlet.ModelAndView;

/**
 * Controller for searching the application help (Uses Lucene behind the
 * scenes).
 * @author Antony Joseph
 */
public class HelpSearchController extends BaseFormController {

    public HelpSearchController() {
        setCommandClass(HelpSearchQuery.class);
        setSuccessView(".helpSearchPageResult");
    }

    /**
     * Makes the following attributes available in the request scope for the
     * jsps to render the result appropriately: 'resultList' - The query result,
     * 'pageSize' - The page size, 'rowCount' - The total row count of the
     * initial query.
     * @param request the request
     * @param response the response
     * @param command the query parameters
     * @param errors the bind exception
     * @return the model and view
     */
    protected ModelAndView onSubmit(HttpServletRequest request,
            HttpServletResponse response, Object command, BindException errors)
            throws Exception {

        ApplicationSearcher appSearcher = new ApplicationSearcher(
                getWebApplicationContext());

        List resultList = appSearcher.search((HelpSearchQuery) command);
        // due to limitations of the datagrid, massage the data here.
        int bodyLength = 0;
        String url = "";
        List list = new ArrayList();
        for (int i = 0; i < resultList.size(); i++) {
            Map map = (Map) resultList.get(i);
            StringBuffer buffer = new StringBuffer();
            buffer.append("<a href=\"./");

            // massage the path relative to application.
            if (map.get("path") != null)
                url = ((String) map.get("path")).replace('\\', '/');

            if (url.indexOf("/help") > -1) {
                buffer.append(url.substring(url.indexOf("/help")));
            }
            buffer.append("\" target=\"_new\">");
            buffer.append(map.get("title"));
            buffer.append("</a><br />");

            if (map.get("body") != null) {
                if (((String) map.get("body")).length() > 300)
                    bodyLength = 300;
                else
                    bodyLength = ((String) map.get("body")).length();

                buffer.append(((String) map.get("body")).substring(0,
                        bodyLength));
            }
            buffer.append("...<br /><br />");
            list.add(buffer.toString());
        }

        // set result attributes so that the Jsps can find it.
        request.setAttribute("resultList", list);

        return new ModelAndView(getSuccessView());
    }
}