org.inbio.ait.web.ajax.controller.IndicatorsTreeController.java Source code

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Here is the source code for org.inbio.ait.web.ajax.controller.IndicatorsTreeController.java

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/* AIT - Analysis of taxonomic indicators
 *
 * Copyright (C) 2010  INBio (Instituto Nacional de Biodiversidad)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.inbio.ait.web.ajax.controller;

import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.inbio.ait.manager.IndicatorsManager;
import org.inbio.ait.model.AutocompleteNode;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

/**
 *
 * @author esmata
 */
public class IndicatorsTreeController implements Controller {

    private IndicatorsManager indicatorsManager;

    @Override
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
        String param = request.getParameter("query");
        String errorMsj = "No se pudo obtener la lista de hijos para el nodo: " + param;
        List<AutocompleteNode> acnList = new ArrayList<AutocompleteNode>();

        try {
            int paramInt = Integer.parseInt(param);
            acnList = indicatorsManager.getChildNodesByNodeId(paramInt);
            return writeReponse(request, response, acnList);

        } catch (IllegalArgumentException iae) {
            throw new Exception(errorMsj + " " + iae.getMessage());
        }
    }

    private ModelAndView writeReponse(HttpServletRequest request, HttpServletResponse response,
            List<AutocompleteNode> acnList) throws Exception {

        response.setCharacterEncoding("ISO-8859-1");
        response.setContentType("text/xml");
        // Binary output
        ServletOutputStream out = response.getOutputStream();

        if (acnList != null) {
            StringBuilder result = new StringBuilder();
            result.append("<?xml version='1.0' encoding='ISO-8859-1'?><response>");
            for (AutocompleteNode sp : acnList) {
                result.append("<node><id>" + sp.getItemId() + "</id>");
                result.append("<name>" + sp.getItemName() + "</name></node>");
            }
            result.append("</response>");
            out.println(result.toString());
        }

        out.flush();
        out.close();

        return null;
    }

    /**
     * @return the indicatorsManager
     */
    public IndicatorsManager getIndicatorsManager() {
        return indicatorsManager;
    }

    /**
     * @param indicatorsManager the indicatorsManager to set
     */
    public void setIndicatorsManager(IndicatorsManager indicatorsManager) {
        this.indicatorsManager = indicatorsManager;
    }
}