Examples with JCasAnnotator_ImplBase org.apache.uima.analysis_component.JCasAnnotator_ImplBase used on opensource projects

Example 1 with JCasAnnotator_ImplBase

use of org.apache.uima.analysis_component.JCasAnnotator_ImplBase in project webanno by webanno.

the class RemoteApiController2 method documentRead.

@ApiOperation(value = "Get a document from a project", response = byte[].class)
@RequestMapping(value = "/" + PROJECTS + "/{" + PARAM_PROJECT_ID + "}/" + DOCUMENTS + "/{" + PARAM_DOCUMENT_ID + "}", method = RequestMethod.GET, produces = { APPLICATION_OCTET_STREAM_VALUE, APPLICATION_JSON_UTF8_VALUE })
public ResponseEntity documentRead(@PathVariable(PARAM_PROJECT_ID) long aProjectId, @PathVariable(PARAM_DOCUMENT_ID) long aDocumentId, @RequestParam(value = PARAM_FORMAT) Optional<String> aFormat) throws Exception {
    // Get project (this also ensures that it exists and that the current user can access it
    Project project = getProject(aProjectId);
    SourceDocument doc = getDocument(project, aDocumentId);
    boolean originalFile;
    String format;
    if (aFormat.isPresent()) {
        if (VAL_ORIGINAL.equals(aFormat.get())) {
            format = doc.getFormat();
            originalFile = true;
        } else {
            format = aFormat.get();
            originalFile = doc.getFormat().equals(format);
        }
    } else {
        format = doc.getFormat();
        originalFile = true;
    }
    if (originalFile) {
        // Export the original file - no temporary file created here, we export directly from
        // the file system
        File docFile = documentService.getSourceDocumentFile(doc);
        FileSystemResource resource = new FileSystemResource(docFile);
        HttpHeaders httpHeaders = new HttpHeaders();
        httpHeaders.setContentLength(resource.contentLength());
        httpHeaders.set("Content-Disposition", "attachment; filename=\"" + doc.getName() + "\"");
        return new ResponseEntity<org.springframework.core.io.Resource>(resource, httpHeaders, OK);
    } else {
        // Export a converted file - here we first export to a local temporary file and then
        // send that back to the client
        // Check if the format is supported
        Map<String, Class<JCasAnnotator_ImplBase>> writableFormats = importExportService.getWritableFormats();
        Class<JCasAnnotator_ImplBase> writer = writableFormats.get(format);
        if (writer == null) {
            throw new UnsupportedFormatException("Format [%s] cannot be exported. Exportable formats are %s.", aFormat, writableFormats.keySet());
        }
        // Create a temporary export file from the annotations
        JCas jcas = documentService.createOrReadInitialCas(doc);
        File exportedFile = null;
        try {
            // Load the converted file into memory
            exportedFile = importExportService.exportCasToFile(jcas.getCas(), doc, doc.getName(), writer, true);
            byte[] resource = FileUtils.readFileToByteArray(exportedFile);
            // Send it back to the client
            HttpHeaders httpHeaders = new HttpHeaders();
            httpHeaders.setContentLength(resource.length);
            httpHeaders.set("Content-Disposition", "attachment; filename=\"" + exportedFile.getName() + "\"");
            return new ResponseEntity<>(resource, httpHeaders, OK);
        } finally {
            if (exportedFile != null) {
                FileUtils.forceDelete(exportedFile);
            }
        }
    }
}