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

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
comparison
equal deleted inserted replaced
327:891a2133cf46 328:835eec282baa
1 package de.intevation.lada.rest;
2
3 import java.io.BufferedOutputStream;
4 import java.io.File;
5 import java.io.InputStream;
6 import java.io.OutputStream;
7 import java.util.LinkedList;
8 import java.util.List;
9 import java.util.Map;
10
11 import javax.enterprise.context.RequestScoped;
12 import javax.inject.Inject;
13 import javax.inject.Named;
14 import javax.ws.rs.Consumes;
15 import javax.ws.rs.GET;
16 import javax.ws.rs.POST;
17 import javax.ws.rs.Path;
18 import javax.ws.rs.PathParam;
19 import javax.ws.rs.Produces;
20 import javax.ws.rs.core.Context;
21 import javax.ws.rs.core.HttpHeaders;
22 import javax.ws.rs.core.Response;
23 import javax.ws.rs.core.Response.ResponseBuilder;
24 import javax.ws.rs.core.Response.Status;
25
26 import org.json.JSONException;
27 import org.json.JSONObject;
28
29 import de.intevation.lada.auth.Authentication;
30 import de.intevation.lada.auth.AuthenticationException;
31 import de.intevation.lada.auth.AuthenticationResponse;
32 import de.intevation.lada.auth.Authorization;
33 import de.intevation.lada.data.exporter.Exporter;
34
35 /**
36 * This class produces a RESTful service to export a LAF file.
37 *
38 * @author <a href="mailto:rrenkert@intevation.de">Raimund Renkert</a>
39 */
40 @Path("/export")
41 @RequestScoped
42 public class LAFExportService
43 {
44 @Inject
45 @Named("ldapauth")
46 private Authentication authentication;
47
48 @Inject
49 @Named("dataauthorization")
50 private Authorization authorization;
51
52 @Inject
53 @Named("lafexporter")
54 private Exporter exporter;
55 /**
56 * Import LProbe object.
57 * See
58 * http://howtodoinjava.com/2013/05/21/jax-rs-resteasy-file-upload-httpclient-example/
59 * for more details on the implementation.
60 *
61 * @param input MulitpartFormDataInput containing the file to upload.
62 * @param header The HTTP header containing authorization information.
63 * @return Response object.
64 */
65 @GET
66 @Path("/laf/{id}")
67 @Produces("text/plain")
68 public Response download(
69 @PathParam("id") String probeId,
70 @Context HttpHeaders header
71 ) {
72 try {
73 String fileName = "export.laf";
74 AuthenticationResponse auth = authentication.authorizedGroups(header);
75 if (!authentication.isAuthorizedUser(header)) {
76 ResponseBuilder response = Response.status(Status.FORBIDDEN);
77 return response.build();
78 }
79 if (!authentication.hasAccess(header, probeId) ||
80 !authorization.isReadOnly(probeId)) {
81 ResponseBuilder response = Response.status(Status.FORBIDDEN);
82 return response.build();
83 }
84 InputStream exported = exporter.export(probeId, auth);
85 ResponseBuilder response = Response.ok((Object)exported);
86 response.header(
87 "Content-Disposition",
88 "attachment; filename=\"" + fileName + "\"");
89 return response.build();
90
91 }
92 catch(AuthenticationException ae) {
93 ResponseBuilder response = Response.status(Status.FORBIDDEN);
94 return response.build();
95 }
96 }
97 }
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