001/**
002 * Copyright (C) 2014  Universidade de Aveiro, DETI/IEETA, Bioinformatics Group - http://bioinformatics.ua.pt/
003 *
004 * This file is part of Dicoogle/dicoogle.
005 *
006 * Dicoogle/dicoogle is free software: you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation, either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * Dicoogle/dicoogle is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with Dicoogle.  If not, see <http://www.gnu.org/licenses/>.
018 */
019
020package pt.ua.dicoogle.server.web.utils;
021
022import java.io.IOException;
023import java.util.List;
024
025import javax.servlet.http.HttpServletResponse;
026
027import net.sf.json.JSONObject;
028
029/**
030 * Common simple responses of success and failure
031 * 
032 * @author Frederico Silva <fredericosilva@ua.pt>
033 */
034public class ResponseUtil {
035
036    public static void simpleResponse(HttpServletResponse resp, String name ,boolean state) throws IOException {
037        resp.setContentType("application/json");
038        JSONObject object = new JSONObject();
039        object.put(name, state);
040        object.write(resp.getWriter());
041    }
042    
043    public static void objectResponse(HttpServletResponse resp, List<Pair> pairs) throws IOException {
044        resp.setContentType("application/json");
045        JSONObject object = new JSONObject();
046        
047        for(Pair entry: pairs){
048                object.put(entry.getKey(), entry.getValue().toString());        
049        }
050        
051        object.write(resp.getWriter());
052    }
053    
054    /*
055     * Generic Pair Util for Json response
056     */
057    public static class Pair<V>{
058        String key;
059        V value;
060                public Pair(String key, V value) {
061                        super();
062                        this.key = key;
063                        this.value = value;
064                }
065                public String getKey() {
066                        return key;
067                }
068                public V getValue() {
069                        return value;
070                }
071        
072        
073    }
074}