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1
17
18 package org.pentaho.ui.servlet;
19
20
21
22 import java.io.IOException  ;
23 import java.io.InputStream ;
24
25 import javax.servlet.ServletException ;
26 import javax.servlet.ServletOutputStream ;
27 import javax.servlet.http.HttpServletRequest ;
28 import javax.servlet.http.HttpServletResponse ;
29 import org.jfree.io.IOUtils;
30 import org.apache.commons.logging.Log;
31 import org.apache.commons.logging.LogFactory;
32 import org.pentaho.core.repository.IContentItem;
33 import org.pentaho.core.repository.IContentRepository;
34 import org.pentaho.core.session.IPentahoSession;
35 import org.pentaho.core.system.PentahoSystem;
36 import org.pentaho.messages.Messages;
37 import org.pentaho.messages.util.LocaleHelper;
38
39 public class GetContent extends ServletBase {
40
41
44 private static final long serialVersionUID = 9019152264205996418L;
45
46 private static final Log logger = LogFactory.getLog(GetContent.class);
47
48 public Log getLogger() {
49 return logger;
50 }
51
52 public GetContent() {
53 super();
54 }
55
56 protected void setupSession(IPentahoSession userSession) {
57 PentahoSystem.sessionStartup(userSession);
58 }
59
60 protected void removeUserSession(IPentahoSession userSession) {
61 userSession.destroy();
62 }
63
64 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException , IOException {
65 doGet(request, response);
66 }
67
68 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException , IOException {
69
70 response.setCharacterEncoding(LocaleHelper.getSystemEncoding());
71
72 PentahoSystem.systemEntryPoint();
73 try {
74 IPentahoSession userSession = getPentahoSession(request);
75
76 String id = request.getParameter("id"); if (id == null) {
78 returnError(response, Messages.getErrorString("GetContent.ERROR_0001_ID_PARAMETER_EMPTY")); return;
80 }
81
82 IContentRepository contentRepos = PentahoSystem.getContentRepository(userSession);
83 if (contentRepos == null) {
84 returnError(response, Messages.getString("GetContent.ERROR_0002_CONTENT_REPOS_UNAVAILABLE")); return;
86 }
87
88 try {
89 IContentItem contentItem = contentRepos.getContentItemById(id);
90 if (contentItem == null) {
91 returnError(response, Messages.getString("GetContent.ERROR_0005_CONTENT_NOT_FOUND", id)); return;
93 }
94
95 String mimetype = contentItem.getMimeType();
96 if ((mimetype == null) || (mimetype.length() < 1)) {
97 mimetype = request.getParameter("mimetype"); }
99
100 if ((mimetype != null) && (mimetype.length() > 0)) {
102 response.setContentType(mimetype);
103 }
104
105 InputStream inStr = contentItem.getInputStream();
107 ServletOutputStream outStr = response.getOutputStream();
108
109
110 try {
111 IOUtils.getInstance().copyStreams(inStr, outStr);
112 } finally {
113 inStr.close();
114 outStr.close();
115 }
116 } catch (Throwable t) {
117 error(Messages.getString("GetContent.ERROR_0003_CONTENT_READ_ERROR")); }
119
120 } finally {
121 PentahoSystem.systemExitPoint();
122 }
123 }
124
125 void returnError(HttpServletResponse response, String message) {
126 error(message);
127
128 response.setContentType("text/plain"); try {
130 response.getWriter().println(Messages.getString("GetContent.ERROR_0004_RETURN_MESSAGE") + message); } catch (Throwable t) {
132 }
133 }
134
135 }
136 |
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