Examples with FileResource org.hisp.dhis.fileresource.FileResource used on opensource projects

Example 6 with FileResource

use of org.hisp.dhis.fileresource.FileResource in project dhis2-core by dhis2.

the class SaveDocumentAction method uploadFile.

private FileResource uploadFile(File file, String fileName, String contentType) throws IOException {
    log.info("Uploading file '" + fileName + "' to document " + name + ".");
    byte[] bytes = FileUtils.readFileToByteArray(file);
    FileResource fileResource = new FileResource(fileName, contentType, bytes.length, ByteSource.wrap(bytes).hash(Hashing.md5()).toString(), FileResourceDomain.DOCUMENT);
    fileResourceService.saveFileResource(fileResource, bytes);
    log.info("Upload complete.");
    return fileResource;
}

Example 7 with FileResource

use of org.hisp.dhis.fileresource.FileResource in project dhis2-core by dhis2.

the class DataValueController method getDataValueFile.

// ---------------------------------------------------------------------
// GET file
// ---------------------------------------------------------------------
@RequestMapping(value = "/files", method = RequestMethod.GET)
public void getDataValueFile(@RequestParam String de, @RequestParam(required = false) String co, @RequestParam(required = false) String cc, @RequestParam(required = false) String cp, @RequestParam String pe, @RequestParam String ou, HttpServletResponse response, HttpServletRequest request) throws WebMessageException {
    // ---------------------------------------------------------------------
    // Input validation
    // ---------------------------------------------------------------------
    DataElement dataElement = getAndValidateDataElement(de);
    if (!dataElement.isFileType()) {
        throw new WebMessageException(WebMessageUtils.conflict("DataElement must be of type file"));
    }
    DataElementCategoryOptionCombo categoryOptionCombo = getAndValidateCategoryOptionCombo(co, false);
    DataElementCategoryOptionCombo attributeOptionCombo = getAndValidateAttributeOptionCombo(cc, cp);
    Period period = getAndValidatePeriod(pe);
    OrganisationUnit organisationUnit = getAndValidateOrganisationUnit(ou);
    // ---------------------------------------------------------------------
    // Get data value
    // ---------------------------------------------------------------------
    DataValue dataValue = dataValueService.getDataValue(dataElement, period, organisationUnit, categoryOptionCombo, attributeOptionCombo);
    if (dataValue == null) {
        throw new WebMessageException(WebMessageUtils.conflict("Data value does not exist"));
    }
    // ---------------------------------------------------------------------
    // Get file resource
    // ---------------------------------------------------------------------
    String uid = dataValue.getValue();
    FileResource fileResource = fileResourceService.getFileResource(uid);
    if (fileResource == null || fileResource.getDomain() != FileResourceDomain.DATA_VALUE) {
        throw new WebMessageException(WebMessageUtils.notFound("A data value file resource with id " + uid + " does not exist."));
    }
    FileResourceStorageStatus storageStatus = fileResource.getStorageStatus();
    if (storageStatus != FileResourceStorageStatus.STORED) {
        // Special case:
        //  The FileResource exists and has been tied to this DataValue, however, the underlying file
        //  content is still not stored to the (most likely external) file store provider.
        // HTTP 409, for lack of a more suitable status code
        WebMessage webMessage = WebMessageUtils.conflict("The content is being processed and is not available yet. Try again later.", "The content requested is in transit to the file store and will be available at a later time.");
        webMessage.setResponse(new FileResourceWebMessageResponse(fileResource));
        throw new WebMessageException(webMessage);
    }
    ByteSource content = fileResourceService.getFileResourceContent(fileResource);
    if (content == null) {
        throw new WebMessageException(WebMessageUtils.notFound("The referenced file could not be found"));
    }
    // ---------------------------------------------------------------------
    // Attempt to build signed URL request for content and redirect
    // ---------------------------------------------------------------------
    URI signedGetUri = fileResourceService.getSignedGetFileResourceContentUri(uid);
    if (signedGetUri != null) {
        response.setStatus(HttpServletResponse.SC_TEMPORARY_REDIRECT);
        response.setHeader(HttpHeaders.LOCATION, signedGetUri.toASCIIString());
        return;
    }
    // ---------------------------------------------------------------------
    // Build response and return
    // ---------------------------------------------------------------------
    response.setContentType(fileResource.getContentType());
    response.setContentLength(new Long(fileResource.getContentLength()).intValue());
    response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "filename=" + fileResource.getName());
    // ---------------------------------------------------------------------
    // Request signing is not available, stream content back to client
    // ---------------------------------------------------------------------
    InputStream inputStream = null;
    try {
        inputStream = content.openStream();
        IOUtils.copy(inputStream, response.getOutputStream());
    } catch (IOException e) {
        throw new WebMessageException(WebMessageUtils.error("Failed fetching the file from storage", "There was an exception when trying to fetch the file from the storage backend. " + "Depending on the provider the root cause could be network or file system related."));
    } finally {
        IOUtils.closeQuietly(inputStream);
    }
}

Example 8 with FileResource

use of org.hisp.dhis.fileresource.FileResource in project dhis2-core by dhis2.

the class ExternalFileResourceController method getExternalFileResource.

/**
     * Returns a file associated with the externalFileResource resolved from the accessToken.
     * <p>
     * Only files contained in externalFileResources with a valid accessToken, expiration date null or in the future
     * are files allowed to be served trough this endpoint.
     *
     * @param accessToken a unique string that resolves to a given externalFileResource
     * @param response
     * @throws WebMessageException
     */
@RequestMapping(value = "/{accessToken}", method = RequestMethod.GET)
public void getExternalFileResource(@PathVariable String accessToken, HttpServletResponse response) throws WebMessageException {
    ExternalFileResource externalFileResource = externalFileResourceService.getExternalFileResourceByAccessToken(accessToken);
    if (externalFileResource == null) {
        throw new WebMessageException(WebMessageUtils.notFound("No file found with key '" + accessToken + "'"));
    }
    if (externalFileResource.getExpires() != null && externalFileResource.getExpires().before(new Date())) {
        throw new WebMessageException(WebMessageUtils.createWebMessage("The key you requested has expired", Status.WARNING, HttpStatus.GONE));
    }
    FileResource fileResource = externalFileResource.getFileResource();
    // ---------------------------------------------------------------------
    // Attempt to build signed URL request for content and redirect
    // ---------------------------------------------------------------------
    URI signedGetUri = fileResourceService.getSignedGetFileResourceContentUri(fileResource.getUid());
    if (signedGetUri != null) {
        response.setStatus(HttpServletResponse.SC_TEMPORARY_REDIRECT);
        response.setHeader(HttpHeaders.LOCATION, signedGetUri.toASCIIString());
        return;
    }
    // ---------------------------------------------------------------------
    // Build response and return
    // ---------------------------------------------------------------------
    response.setContentType(fileResource.getContentType());
    response.setContentLength(new Long(fileResource.getContentLength()).intValue());
    response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "filename=" + fileResource.getName());
    // ---------------------------------------------------------------------
    // Request signing is not available, stream content back to client
    // ---------------------------------------------------------------------
    InputStream inputStream = null;
    try {
        inputStream = fileResourceService.getFileResourceContent(fileResource).openStream();
        IOUtils.copy(inputStream, response.getOutputStream());
    } catch (IOException e) {
        throw new WebMessageException(WebMessageUtils.error("Failed fetching the file from storage", "There was an exception when trying to fetch the file from the storage backend. " + "Depending on the provider the root cause could be network or file system related."));
    } finally {
        IOUtils.closeQuietly(inputStream);
    }
}

Example 9 with FileResource

use of org.hisp.dhis.fileresource.FileResource in project dhis2-core by dhis2.

the class FileResourceController method saveFileResource.

@RequestMapping(method = RequestMethod.POST)
@ResponseBody
public WebMessage saveFileResource(@RequestParam MultipartFile file) throws WebMessageException, IOException {
    String filename = StringUtils.defaultIfBlank(FilenameUtils.getName(file.getOriginalFilename()), DEFAULT_FILENAME);
    String contentType = file.getContentType();
    contentType = isValidContentType(contentType) ? contentType : DEFAULT_CONTENT_TYPE;
    long contentLength = file.getSize();
    if (contentLength <= 0) {
        throw new WebMessageException(WebMessageUtils.conflict("Could not read file or file is empty."));
    }
    ByteSource bytes = new MultipartFileByteSource(file);
    String contentMd5 = bytes.hash(Hashing.md5()).toString();
    FileResource fileResource = new FileResource(filename, contentType, contentLength, contentMd5, FileResourceDomain.DATA_VALUE);
    fileResource.setAssigned(false);
    fileResource.setCreated(new Date());
    fileResource.setUser(currentUserService.getCurrentUser());
    File tmpFile = toTempFile(file);
    String uid = fileResourceService.saveFileResource(fileResource, tmpFile);
    if (uid == null) {
        throw new WebMessageException(WebMessageUtils.error("Saving the file failed."));
    }
    WebMessage webMessage = new WebMessage(Status.OK, HttpStatus.ACCEPTED);
    webMessage.setResponse(new FileResourceWebMessageResponse(fileResource));
    return webMessage;
}

Example 10 with FileResource

use of org.hisp.dhis.fileresource.FileResource in project dhis2-core by dhis2.

the class DefaultDocumentService method deleteFileFromDocument.

@Override
public void deleteFileFromDocument(Document document) {
    FileResource fileResource = document.getFileResource();
    // Remove reference to fileResource from document to avoid db constraint exception
    document.setFileResource(null);
    documentStore.save(document);
    // Delete file
    fileResourceService.deleteFileResource(fileResource.getUid());
}