Mercurial > lada > lada-server

annotate src/main/java/de/intevation/lada/rest/LAFExportService.java @ 328:835eec282baa

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New service for LAF export. This service exports a single probe object identified by its id. It is reachable via /server/rest/export/laf/$PROBEID.
author Raimund Renkert <rrenkert@intevation.de>
date Tue, 27 Aug 2013 09:47:07 +0200
parents
children 5c996cf50437
rev   line source
328
835eec282baa New service for LAF export.
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1 package de.intevation.lada.rest;
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2
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3 import java.io.BufferedOutputStream;
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4 import java.io.File;
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5 import java.io.InputStream;
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6 import java.io.OutputStream;
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7 import java.util.LinkedList;
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8 import java.util.List;
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9 import java.util.Map;
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10
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11 import javax.enterprise.context.RequestScoped;
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12 import javax.inject.Inject;
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13 import javax.inject.Named;
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14 import javax.ws.rs.Consumes;
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15 import javax.ws.rs.GET;
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16 import javax.ws.rs.POST;
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17 import javax.ws.rs.Path;
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18 import javax.ws.rs.PathParam;
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19 import javax.ws.rs.Produces;
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20 import javax.ws.rs.core.Context;
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21 import javax.ws.rs.core.HttpHeaders;
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22 import javax.ws.rs.core.Response;
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23 import javax.ws.rs.core.Response.ResponseBuilder;
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24 import javax.ws.rs.core.Response.Status;
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25
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26 import org.json.JSONException;
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27 import org.json.JSONObject;
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28
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29 import de.intevation.lada.auth.Authentication;
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30 import de.intevation.lada.auth.AuthenticationException;
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31 import de.intevation.lada.auth.AuthenticationResponse;
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32 import de.intevation.lada.auth.Authorization;
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33 import de.intevation.lada.data.exporter.Exporter;
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34
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35 /**
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36 * This class produces a RESTful service to export a LAF file.
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37 *
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38 * @author <a href="mailto:rrenkert@intevation.de">Raimund Renkert</a>
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39 */
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40 @Path("/export")
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41 @RequestScoped
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42 public class LAFExportService
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43 {
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44 @Inject
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45 @Named("ldapauth")
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46 private Authentication authentication;
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47
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48 @Inject
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49 @Named("dataauthorization")
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50 private Authorization authorization;
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51
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52 @Inject
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53 @Named("lafexporter")
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54 private Exporter exporter;
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55 /**
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56 * Import LProbe object.
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57 * See
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58 * http://howtodoinjava.com/2013/05/21/jax-rs-resteasy-file-upload-httpclient-example/
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59 * for more details on the implementation.
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60 *
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61 * @param input MulitpartFormDataInput containing the file to upload.
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62 * @param header The HTTP header containing authorization information.
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63 * @return Response object.
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64 */
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65 @GET
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66 @Path("/laf/{id}")
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67 @Produces("text/plain")
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68 public Response download(
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69 @PathParam("id") String probeId,
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70 @Context HttpHeaders header
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71 ) {
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72 try {
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73 String fileName = "export.laf";
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74 AuthenticationResponse auth = authentication.authorizedGroups(header);
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75 if (!authentication.isAuthorizedUser(header)) {
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76 ResponseBuilder response = Response.status(Status.FORBIDDEN);
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77 return response.build();
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78 }
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79 if (!authentication.hasAccess(header, probeId) ||
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80 !authorization.isReadOnly(probeId)) {
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81 ResponseBuilder response = Response.status(Status.FORBIDDEN);
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82 return response.build();
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83 }
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84 InputStream exported = exporter.export(probeId, auth);
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85 ResponseBuilder response = Response.ok((Object)exported);
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86 response.header(
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87 "Content-Disposition",
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88 "attachment; filename=\"" + fileName + "\"");
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89 return response.build();
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90
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91 }
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92 catch(AuthenticationException ae) {
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93 ResponseBuilder response = Response.status(Status.FORBIDDEN);
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94 return response.build();
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95 }
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96 }
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97 }
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