Need Help file upload

Support
#1

Hi -
My entity looks like this

public class FileUpload extends StandardEntity{
    private static final long serialVersionUID = 9133937435347475015L;

    @Column(name = "TITLE", nullable = false)
    protected String title;

    @ManyToOne(fetch = FetchType.LAZY, optional = false)
    @JoinColumn(name = "IN_FILE_ID")
    protected com.haulmont.cuba.core.entity.FileDescriptor inFile;    
}

My xml looks like this

<layout spacing="true">
    <fieldGroup id="fieldGroup"
                datasource="fileUploadDs">
        <column width="250px">
            <field property="title"/>
            <field property="inFile" />
        </column>
    </fieldGroup>
    <hbox id="hbox" spacing="true" align="MIDDLE_LEFT" >
        <button id="cancelBtn"
                caption="Cancel"
                invoke="onCancel" icon=""/>
        <button id="okBtn"
                caption="Save"
                invoke="onSave"/>
        <button id="processBtn"
                caption="Process"
                invoke="onProcess"/>
    </hbox>
</layout>

My Controller looks like this

public class FileUploadEdit extends AbstractEditor<FileUpload> {
    @Inject
    private Button processBtn;
    @Inject
    private Button okBtn;

    @Inject
    @Named("fieldGroup.inFile")
    protected FileUploadField inFile;
    //protected FileUploadField inFileuploadField;

    @Inject
    private FileProcessService fileProcessService;

    @Inject
    private FileUploadingAPI fileUploadingAPI;

    @Inject
    private DataSupplier dataSupplier;

    @Override
    public void init(Map<String, Object> params) {
    }

    @Override
    protected void postInit() {
        if(FileProcessStatus.Uploaded.equals(getItem().getFileProcessStatus())){
            processBtn.setEnabled(true);
            inFile.setEditable(true);
            okBtn.setEnabled(true);
        } else if(getItem().getFileProcessStatus()==null){
            inFile.setEditable(true);
            processBtn.setEnabled(false);
            okBtn.setEnabled(true);
        }else {
            processBtn.setEnabled(false);
            inFile.setEditable(false);
            okBtn.setEnabled(false);
        }

    }

    public void onSave(Component source) throws FileStorageException {
        fileUploadingAPI.putFileIntoStorage(inFile.getFileId(), getItem().getInFile());                super.commit();
        postInit();
    }

    public void onCancel(Component source) {
        close(CLOSE_ACTION_ID);
    }

    public void onProcess(Component source){
        System.out.println("File:"+fileUploadingAPI.getFile(getItem().getInFile().getId()));
        fileProcessService.processFile(getItem(),fileUploadingAPI.getFile(getItem().getInFile().getId()));
        getItem().setFileProcessStatus(FileProcessStatus.Processing);        
        super.commitAndClose();   
    }
}

I get a null file when I enquire to get the file from fileUploadApi.Let me know where I am doing wrong?

#2

Could finally sort it out
Instead of using fileUploadingApi , I used fileStorageService and could read the file using

fileStorageService.loadFile(getItem().getInFile())