Examples with MetadataVersionServiceException org.hisp.dhis.dxf2.metadata.version.exception.MetadataVersionServiceException used on opensource projects

Example 16 with MetadataVersionServiceException

use of org.hisp.dhis.dxf2.metadata.version.exception.MetadataVersionServiceException in project dhis2-core by dhis2.

the class MetadataVersionController method downloadGZipVersion.

//endpoint to download metadata in gzip format
@PreAuthorize("hasRole('ALL') or hasRole('F_METADATA_MANAGE')")
@RequestMapping(value = MetadataVersionSchemaDescriptor.API_ENDPOINT + "/{versionName}/data.gz", method = RequestMethod.GET, produces = "*/*")
public void downloadGZipVersion(@PathVariable("versionName") String versionName, HttpServletResponse response) throws MetadataVersionException, IOException, BadRequestException {
    boolean enabled = isMetadataVersioningEnabled();
    try {
        if (!enabled) {
            throw new BadRequestException("Metadata versioning is not enabled for this instance.");
        }
        contextUtils.configureResponse(response, ContextUtils.CONTENT_TYPE_GZIP, CacheStrategy.NO_CACHE, "metadata.json.gz", true);
        response.addHeader(ContextUtils.HEADER_CONTENT_TRANSFER_ENCODING, "binary");
        String versionData = versionService.getVersionData(versionName);
        if (versionData == null) {
            throw new MetadataVersionException("No metadata version snapshot found for the given version " + versionName);
        }
        GZIPOutputStream gos = new GZIPOutputStream(response.getOutputStream());
        gos.write(versionData.getBytes(StandardCharsets.UTF_8));
        gos.close();
    } catch (MetadataVersionServiceException ex) {
        throw new MetadataVersionException("Unable to download version from system: " + versionName + ex.getMessage());
    }
}