Examples with TopicFolder org.opensourcebim.bcf.TopicFolder used on opensource projects

Example 1 with TopicFolder

use of org.opensourcebim.bcf.TopicFolder in project BIMserver by opensourceBIM.

the class DownloadServlet method service.

@Override
public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    try {
        String acceptEncoding = request.getHeader("Accept-Encoding");
        boolean useGzip = false;
        if (acceptEncoding != null && acceptEncoding.contains("gzip")) {
            useGzip = true;
        }
        OutputStream outputStream = response.getOutputStream();
        boolean zip = request.getParameter("zip") != null && request.getParameter("zip").equals("on");
        if (useGzip && !zip) {
            response.setHeader("Content-Encoding", "gzip");
            outputStream = new GZIPOutputStream(response.getOutputStream());
        }
        String token = (String) request.getSession().getAttribute("token");
        if (token == null) {
            token = request.getParameter("token");
        }
        long topicId = -1;
        if (request.getParameter("topicId") != null) {
            topicId = Long.parseLong(request.getParameter("topicId"));
        }
        ServiceMap serviceMap = getBimServer().getServiceFactory().get(token, AccessMethod.INTERNAL);
        String action = request.getParameter("action");
        if (action != null) {
            if (action.equals("extendeddata")) {
                SExtendedData sExtendedData = serviceMap.getServiceInterface().getExtendedData(Long.parseLong(request.getParameter("edid")));
                SFile file = serviceMap.getServiceInterface().getFile(sExtendedData.getFileId());
                if (file.getMime() != null) {
                    response.setContentType(file.getMime());
                }
                if (file.getFilename() != null) {
                    response.setHeader("Content-Disposition", "inline; filename=\"" + file.getFilename() + "\"");
                }
                outputStream.write(file.getData());
                if (outputStream instanceof GZIPOutputStream) {
                    ((GZIPOutputStream) outputStream).finish();
                }
                outputStream.flush();
                return;
            } else if (action.equals("getfile")) {
                String type = request.getParameter("type");
                if (type.equals("proto")) {
                    try {
                        String protocolBuffersFile = serviceMap.getAdminInterface().getProtocolBuffersFile(request.getParameter("name"));
                        outputStream.write(protocolBuffersFile.getBytes(Charsets.UTF_8));
                        outputStream.flush();
                    } catch (ServiceException e) {
                        LOGGER.error("", e);
                    }
                } else if (type.equals("serverlog")) {
                    try {
                        OutputStreamWriter writer = new OutputStreamWriter(outputStream);
                        writer.write(serviceMap.getAdminInterface().getServerLog());
                        writer.flush();
                    } catch (ServerException e) {
                        LOGGER.error("", e);
                    } catch (UserException e) {
                        LOGGER.error("", e);
                    }
                }
            } else if (action.equals("getBcfImage")) {
                long extendedDataId = Long.parseLong(request.getParameter("extendedDataId"));
                String topicGuid = request.getParameter("topicGuid");
                String name = request.getParameter("name");
                BcfFile bcfFile = BcfCache.INSTANCE.get(extendedDataId);
                if (bcfFile == null) {
                    SExtendedData extendedData = serviceMap.getServiceInterface().getExtendedData(extendedDataId);
                    long fileId = extendedData.getFileId();
                    SFile file = serviceMap.getServiceInterface().getFile(fileId);
                    try {
                        bcfFile = BcfFile.read(new ByteArrayInputStream(file.getData()), new ReadOptions(false));
                        BcfCache.INSTANCE.put(extendedDataId, bcfFile);
                    } catch (BcfException e) {
                        e.printStackTrace();
                    }
                }
                TopicFolder topicFolder = bcfFile.getTopicFolder(topicGuid);
                if (topicFolder != null) {
                    byte[] data = topicFolder.getSnapshot(topicGuid + "/" + name);
                    if (data != null) {
                        response.setContentType("image/png");
                        IOUtils.write(data, outputStream);
                        if (outputStream instanceof GZIPOutputStream) {
                            ((GZIPOutputStream) outputStream).finish();
                        }
                        outputStream.flush();
                        return;
                    }
                }
            }
        } else {
            if (request.getParameter("topicId") != null) {
                topicId = Long.parseLong(request.getParameter("topicId"));
            }
            if (topicId == -1) {
                response.getWriter().println("No valid topicId");
                return;
            }
            SDownloadResult checkoutResult = serviceMap.getServiceInterface().getDownloadData(topicId);
            if (checkoutResult == null) {
                LOGGER.error("Invalid topicId: " + topicId);
            } else {
                DataSource dataSource = checkoutResult.getFile().getDataSource();
                PluginConfiguration pluginConfiguration = new PluginConfiguration(serviceMap.getPluginInterface().getPluginSettings(checkoutResult.getSerializerOid()));
                final ProgressTopic progressTopic = getBimServer().getNotificationsManager().getProgressTopic(topicId);
                ProgressReporter progressReporter = new ProgressReporter() {

                    private long lastMax;

                    private long lastProgress;

                    private int stage = 3;

                    private Date start = new Date();

                    private String title = "Downloading...";

                    @Override
                    public void update(long progress, long max) {
                        if (progressTopic != null) {
                            LongActionState ds = StoreFactory.eINSTANCE.createLongActionState();
                            ds.setStart(start);
                            ds.setState(progress == max ? ActionState.FINISHED : ActionState.STARTED);
                            ds.setTitle(title);
                            ds.setStage(stage);
                            ds.setProgress((int) Math.round(100.0 * progress / max));
                            progressTopic.stageProgressUpdate(ds);
                            this.lastMax = max;
                            this.lastProgress = progress;
                        }
                    }

                    @Override
                    public void setTitle(String title) {
                        if (progressTopic != null) {
                            stage++;
                            this.title = title;
                            LongActionState ds = StoreFactory.eINSTANCE.createLongActionState();
                            ds.setStart(new Date());
                            ds.setState(lastProgress == lastMax ? ActionState.FINISHED : ActionState.STARTED);
                            ds.setTitle(title);
                            ds.setStage(stage);
                            ds.setProgress((int) Math.round(100.0 * lastProgress / lastMax));
                            progressTopic.stageProgressUpdate(ds);
                        }
                    }
                };
                try {
                    if (zip) {
                        if (pluginConfiguration.getString("ZipExtension") != null) {
                            response.setHeader("Content-Disposition", "inline; filename=\"" + dataSource.getName() + "." + pluginConfiguration.getString(SerializerPlugin.ZIP_EXTENSION) + "\"");
                        } else {
                            response.setHeader("Content-Disposition", "inline; filename=\"" + dataSource.getName() + ".zip" + "\"");
                        }
                        response.setContentType("application/zip");
                        String nameInZip = dataSource.getName() + "." + pluginConfiguration.getString(SerializerPlugin.EXTENSION);
                        ZipOutputStream zipOutputStream = new ZipOutputStream(outputStream);
                        zipOutputStream.putNextEntry(new ZipEntry(nameInZip));
                        processDataSource(zipOutputStream, dataSource, progressReporter);
                        try {
                            zipOutputStream.finish();
                        } catch (IOException e) {
                        // Sometimes it's already closed, that's no problem
                        }
                    } else {
                        if (request.getParameter("mime") == null) {
                            response.setContentType(pluginConfiguration.getString(SerializerPlugin.CONTENT_TYPE));
                            response.setHeader("Content-Disposition", "inline; filename=\"" + dataSource.getName() + "." + pluginConfiguration.getString(SerializerPlugin.EXTENSION) + "\"");
                        } else {
                            response.setContentType(request.getParameter("mime"));
                        }
                        processDataSource(outputStream, dataSource, progressReporter);
                    }
                } catch (SerializerException s) {
                    if (s.getCause() != null && s.getCause() instanceof IOException) {
                    } else {
                        LOGGER.error("", s);
                    }
                    LongActionState ds = StoreFactory.eINSTANCE.createLongActionState();
                    ds.setStart(new Date());
                    ds.setState(ActionState.AS_ERROR);
                    ds.setTitle("Serialization Error");
                    ds.setProgress(-1);
                    ds.setStage(3);
                    ds.getErrors().add(s.getMessage());
                    progressTopic.stageProgressUpdate(ds);
                }
            }
        }
        if (outputStream instanceof GZIPOutputStream) {
            ((GZIPOutputStream) outputStream).finish();
        }
        outputStream.flush();
    } catch (NumberFormatException e) {
        LOGGER.error("", e);
        response.getWriter().println("Some number was incorrectly formatted");
    } catch (ServiceException e) {
        LOGGER.error("", e);
        response.getWriter().println(e.getUserMessage());
    } catch (EOFException e) {
    } catch (Exception e) {
        LOGGER.error("", e);
    }
}