Mercurial > hg > LGServices

annotate src/main/java/de/mpiwg/gazetteer/rest/DownloadTabDelimited4File.java @ 58:b8ad346e39a0

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new: modify based on doc 'Improving LGServices interface.docx': user workflow improvement, functions like adding task into a topic and search suggestions.
author Zoe Hong <zhong@mpiwg-berlin.mpg.de>
date Mon, 02 May 2016 12:03:30 +0200
parents
children a025dd907626
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58
b8ad346e39a0 new: modify based on doc 'Improving LGServices interface.docx': user workflow improvement, functions like adding task into a topic and search suggestions.
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1 package de.mpiwg.gazetteer.rest;
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3 import java.io.PrintWriter;
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5 import javax.servlet.http.HttpServletRequest;
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6 import javax.servlet.http.HttpServletResponse;
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8 import org.apache.commons.lang.StringUtils;
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9 import org.json.JSONObject;
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11 import de.mpiwg.gazetteer.bo.LGFile;
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12 import de.mpiwg.gazetteer.utils.DataProvider;
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13 import de.mpiwg.gazetteer.utils.FileManager;
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14 import de.mpiwg.gazetteer.utils.HTTPUtils;
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16 public class DownloadTabDelimited4File extends AbstractServletMethod {
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17 public static String name = "downloadTabDelimited4File";
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19 public static void execute(HttpServletRequest request, HttpServletResponse response) throws Exception{
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21 Long fileId = getQueryLongParam(request, "fileId");
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23 if(fileId != null){
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24 LGFile file = DataProvider.getInstance().getFile(fileId);
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25 if(file != null){
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27 String text = HTTPUtils.getTabDelimitedOfFile(fileId); // get text as tab-delimited file
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29 if(StringUtils.isNotEmpty(text)){
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31 String filename = file.getFileName(); // "112_360452_360453_2015.09.04_12.43.08.924_11.txt";
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33 //filename extension with csv
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34 filename = filename.substring(0, filename.length()-3);
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35 filename += "csv";
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37 response.setContentType("text/csv; charset=UTF-8");
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38 response.setHeader("Content-Disposition","attachment; filename=\"" + filename + "\"");
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41 PrintWriter out = response.getWriter();
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42 out.print(text);
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43 out.flush();
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45 }
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48 } else{
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49 response.setContentType("application/json");
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50 JSONObject json = new JSONObject();
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51 json.put("status", "error");
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52 json.put("message", "File no found (" + fileId + ")");
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53 PrintWriter out = response.getWriter();
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54 out.print(json.toString());
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55 out.flush();
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56 }
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57 }else{
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58 response.setContentType("application/json");
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59 JSONObject json = new JSONObject();
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60 json.put("status", "error");
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61 json.put("message", "Following parameters are mandatory: fileId.");
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62 PrintWriter out = response.getWriter();
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63 out.print(json.toString());
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64 out.flush();
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65 }
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66 }
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68 }