问在liferay 7中获取文档元数据(文档类型值)

EN

DDMStructure ddmStructure = null;
List<DDMStructure> structures = dLFileEntryType.getDDMStructures();
mainloop:
for (DDMStructure struct : structures) {
    if (struct.getName((Locale.ROOT)).equalsIgnoreCase("My Document")) {
        ddmStructure = struct;
        break mainloop;
    }
}

DLFileEntryMetadata fileEntryMetadata = null;
try {
    fileEntryMetadata = DLFileEntryMetadataLocalServiceUtil.getFileEntryMetadata(ddmStructure.getStructureId(), dlFileEntry.getFileVersion().getFileVersionId());
    if(Validator.isNotNull(fileEntryMetadata)) {
        ServiceContext serviceContextDLFile = new ServiceContext();
        serviceContextDLFile.setCompanyId(companyId);
        serviceContextDLFile.setAttribute("fileEntryTypeId", fileEntryTypeId);
        serviceContextDLFile.setAttribute("fileEntryMetadataId", fileEntryMetadata.getFileEntryMetadataId());
        serviceContextDLFile.setAttribute("DDMStorageId", fileEntryMetadata.getDDMStorageId());
        serviceContextDLFile.setAttribute("fileEntryId", fileEntryMetadata.getFileEntryId());
        serviceContextDLFile.setAttribute("fileVersionId", fileEntryMetadata.getFileVersionId());

        DDMFormValues ddmFormValues = StorageEngineManagerUtil.getDDMFormValues(fileEntryMetadata.getDDMStructureId(), null, serviceContextDLFile);
        List<DDMFormFieldValue> ddmFormFieldValues =  ddmFormValues.getDDMFormFieldValues();
        if(Validator.isNotNull(ddmFormFieldValues) && !ddmFormFieldValues.isEmpty()) {
            for(DDMFormFieldValue formfieldValue : ddmFormFieldValues) {
                if(formfieldValue.getName().equalsIgnoreCase("Language")) {
                    String languageRawName = formfieldValue.getValue().getString(Locale.US);
                    String language = languageRawName.replace("[\"", "").replace("\"]", "");
                }
            }
        }
    }                   
} catch (NoSuchFileEntryMetadataException nsfene) {
//  LOGGER.error("ERROR:: ", nsfene);
} catch(PortalException portalException) {
//  LOGGER.error("ERROR:: " , portalException);
}