0 bytes when downloading my image

Question

hi am geting 0 bytes when downloading my image,am not able to preview my image but its there in the database i can view it, am in jdeveloper 11g release 2 the code is
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.SQLException;
import java.util.List;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.faces.event.ValueChangeEvent;
import oracle.adf.model.BindingContext;
import oracle.adf.model.binding.DCBindingContainer;
import oracle.adf.model.binding.DCIteratorBinding;
import oracle.adf.view.rich.component.rich.nav.RichCommandButton;
import oracle.binding.AttributeBinding;
import oracle.binding.BindingContainer;
import oracle.binding.OperationBinding;
import oracle.jbo.Row;
import oracle.jbo.domain.BlobDomain;
import org.apache.commons.io.IOUtils;
import org.apache.myfaces.trinidad.model.UploadedFile;
import sms4200.ContentTypes;
public class ImageBean
    private RichCommandButton downloadButton;
    public ImageBean()
    public String cancel_action()
        BindingContainer bindings = BindingContext.getCurrent().getCurrentBindingsEntry();
        // get an ADF attributevalue from the ADF page definitions
        AttributeBinding attr = (AttributeBinding) bindings.getControlBinding("Id");
        Number catalogID = (Number) attr.getInputValue();
        OperationBinding opRollback = bindings.getOperationBinding("Rollback");
        opRollback.execute();
        if (!opRollback.getErrors().isEmpty())
            List<Throwable> lErrorList = opRollback.getErrors();
            for (Throwable lErr: lErrorList)
                FacesMessage msg =
                    new FacesMessage(FacesMessage.SEVERITY_ERROR, lErr.getMessage(), "");
                FacesContext.getCurrentInstance().addMessage(null, msg);
            return null;
        OperationBinding opSetParent = bindings.getOperationBinding("setCurrentRowWithKeyValue");
        opSetParent.getParamsMap().put("rowKey", catalogID);
        opSetParent.execute();
        if (!opSetParent.getErrors().isEmpty())
            List<Throwable> lErrorList = opSetParent.getErrors();
            for (Throwable lErr: lErrorList)
                FacesMessage msg =
                    new FacesMessage(FacesMessage.SEVERITY_ERROR, lErr.getMessage(), "");
                FacesContext.getCurrentInstance().addMessage(null, msg);
            return null;
        return "cancel";
    public void uploadFileValueChangeEvent(ValueChangeEvent valueChangeEvent)
        // The event give access to an Uploade dFile which contains data about the file and its content
        UploadedFile file = (UploadedFile) valueChangeEvent.getNewValue();
        // Get the original file name
        String fileName = file.getFilename();
        // get the mime type
        String contentType = ContentTypes.get(fileName);
        // get the current roew from the ImagesView2Iterator via the binding
        DCBindingContainer lBindingContainer =
            (DCBindingContainer) BindingContext.getCurrent().getCurrentBindingsEntry();
        DCIteratorBinding lBinding = lBindingContainer.findIteratorBinding("SmsDocumentLinksView1Iterator");
        Row newRow = lBinding.getCurrentRow();
        // set the file name
        newRow.setAttribute("DocumentName", fileName);
        // create the BlobDomain and set it into the row
        newRow.setAttribute("DocumentImage", createBlobDomain(file));
        // set the mime type
        newRow.setAttribute("ContentType", contentType);
    private BlobDomain createBlobDomain(UploadedFile file)
        // init the internal variables
        InputStream in = null;
        BlobDomain blobDomain = null;
        OutputStream out = null;
        try
            // Get the input stream representing the data from the client
            in = file.getInputStream();
            // create the BlobDomain datatype to store the data in the db
            blobDomain = new BlobDomain();
            // get the outputStream for hte BlobDomain
            out = blobDomain.getBinaryOutputStream();
            // copy the input stream into the output stream
             * IOUtils is a class from the Apache Commons IO Package (http://www.apache.org/)
             * Here version 2.0.1 is used
             * please download it directly from http://projects.apache.org/projects/commons_io.html
            IOUtils.copy(in, out);
        catch (IOException e)
            e.printStackTrace();
        catch (SQLException e)
            e.fillInStackTrace();
        // return the filled BlobDomain
        return blobDomain;
    public void downloadImage(FacesContext facesContext, OutputStream outputStream)
        BindingContainer bindings = BindingContext.getCurrent().getCurrentBindingsEntry();
        // get an ADF attributevalue from the ADF page definitions
        AttributeBinding attr = (AttributeBinding) bindings.getControlBinding("DocumentImage");
        if (attr == null)
            return;
        // the value is a BlobDomain data type
        BlobDomain blob = (BlobDomain) attr.getInputValue();
        try
        {   // copy the data from the BlobDomain to the output stream
            IOUtils.copy(blob.getInputStream(), outputStream);
            // cloase the blob to release the recources
            blob.closeInputStream();
            // flush the output stream
            outputStream.flush();
        catch (IOException e)
            // handle errors
            e.printStackTrace();
            FacesMessage msg = new FacesMessage(FacesMessage.SEVERITY_ERROR, e.getMessage(), "");
            FacesContext.getCurrentInstance().addMessage(null, msg);
    public void setDownloadButton(RichCommandButton downloadButton)
        this.downloadButton = downloadButton;
    public RichCommandButton getDownloadButton()
        return downloadButton;
}my pagedef is
<?xml version="1.0" encoding="UTF-8" ?>
<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel" version="11.1.2.60.81" id="sms4200PageDef"
                Package="SmsFrontUI.pageDefs">
  <parameters/>
  <executables>
    <variableIterator id="variables"/>
    <iterator Binds="ViewObj1" RangeSize="25" DataControl="TaskFlowAppModuleDataControl" id="ViewObj1Iterator"/>
    <iterator Binds="sms4200_1" RangeSize="25" DataControl="TaskFlowAppModuleDataControl" id="sms4200_1Iterator"/>
    <iterator Binds="SmsDocumentLinksView1" RangeSize="-1" DataControl="sms4200ModuleDataControl"
              id="SmsDocumentLinksView1Iterator"/>
  </executables>
  <bindings>
    <attributeValues IterBinding="ViewObj1Iterator" id="IntegrationTypeName">
      <AttrNames>
        <Item Value="IntegrationTypeName"/>
      </AttrNames>
    </attributeValues>
    <attributeValues IterBinding="ViewObj1Iterator" id="Name">
      <AttrNames>
        <Item Value="Name"/>
      </AttrNames>
    </attributeValues>
    <attributeValues IterBinding="ViewObj1Iterator" id="LocalUpDirectory">
      <AttrNames>
        <Item Value="LocalUpDirectory"/>
      </AttrNames>
    </attributeValues>
    <attributeValues IterBinding="sms4200_1Iterator" id="IntegrationTypeName1">
      <AttrNames>
        <Item Value="IntegrationTypeName"/>
      </AttrNames>
    </attributeValues>
    <attributeValues IterBinding="sms4200_1Iterator" id="Name1">
      <AttrNames>
        <Item Value="Name"/>
      </AttrNames>
    </attributeValues>
    <attributeValues IterBinding="sms4200_1Iterator" id="LocalUpDirectory1">
      <AttrNames>
        <Item Value="LocalUpDirectory"/>
      </AttrNames>
    </attributeValues>
    <tree IterBinding="SmsDocumentLinksView1Iterator" id="SmsDocumentLinksView1">
      <nodeDefinition DefName="sms4200.SmsDocumentLinksView" Name="SmsDocumentLinksView10">
        <AttrNames>
          <Item Value="Id"/>
          <Item Value="DocumentImage"/>
          <Item Value="DocumentName"/>
          <Item Value="DitypId"/>
          <Item Value="SourceFileName"/>
        </AttrNames>
      </nodeDefinition>
    </tree>
    <action IterBinding="SmsDocumentLinksView1Iterator" id="CreateInsert" RequiresUpdateModel="true"
            Action="createInsertRow"/>
    <action id="Commit" RequiresUpdateModel="true" Action="commitTransaction" DataControl="sms4200ModuleDataControl"/>
    <attributeValues IterBinding="SmsDocumentLinksView1Iterator" id="DocumentImage">
      <AttrNames>
        <Item Value="DocumentImage"/>
      </AttrNames>
    </attributeValues>
    <attributeValues IterBinding="SmsDocumentLinksView1Iterator" id="ContentType">
      <AttrNames>
        <Item Value="ContentType"/>
      </AttrNames>
    </attributeValues>
    <attributeValues IterBinding="SmsDocumentLinksView1Iterator" id="DocumentName">
      <AttrNames>
        <Item Value="DocumentName"/>
      </AttrNames>
    </attributeValues>
  </bindings>
</pageDefinition>and my jsp xml page is
<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1" xmlns:f="http://java.sun.com/jsf/core"
          xmlns:af="http://xmlns.oracle.com/adf/faces/rich" xmlns:dvt="http://xmlns.oracle.com/dss/adf/faces"
          xmlns:tr="http://myfaces.apache.org/trinidad" xmlns:c="http://java.sun.com/jsp/jstl/core">
    <jsp:directive.page contentType="text/html;charset=UTF-8"/>
    <f:view>
        <af:document title="sms4200.jspx" id="d1">
            <af:messages id="m1"/>
            <af:form id="f1" usesUpload="true">
                <af:panelStretchLayout topHeight="211px" id="psl1" inlineStyle="width:1338px; background-color:Navy;">
                    <f:facet name="top">
                        <af:panelHeader text="Sms Intergration Sources" id="ph1">
                            <f:facet name="context"/>
                            <f:facet name="menuBar"/>
                            <f:facet name="toolbar"/>
                            <f:facet name="legend"/>
                            <f:facet name="info"/>
                            <af:panelStretchLayout id="psl2" inlineStyle="height:178px; width:1030px;" topHeight="22px"
                                                   endWidth="589px" startWidth="55px" bottomHeight="33px">
                                <f:facet name="end">
                                    <af:panelHeader text="Office" id="ph2"
                                                    inlineStyle="width:900px; background-color:Navy;">
                                        <f:facet name="context"/>
                                        <f:facet name="menuBar"/>
                                        <f:facet name="toolbar"/>
                                        <f:facet name="legend"/>
                                        <f:facet name="info"/>
                                        <af:panelFormLayout id="pfl3" inlineStyle="background-color:Navy;" rows="1">
                                            <f:facet name="footer"/>
                                            <af:inputText label="#{bindings.Name1.hints.label}"
                                                          required="#{bindings.Name1.hints.mandatory}"
                                                          columns="20"
                                                          maximumLength="#{bindings.Name1.hints.precision}"
                                                          shortDesc="#{bindings.Name1.hints.tooltip}" id="it2">
                                                <f:validator binding="#{bindings.Name1.validator}"/>
                                            </af:inputText>
                                            <af:inputText
                                                          label="#{bindings.LocalUpDirectory1.hints.label}"
                                                          required="#{bindings.LocalUpDirectory1.hints.mandatory}"
                                                          columns="20"
                                                          maximumLength="#{bindings.LocalUpDirectory1.hints.precision}"
                                                          shortDesc="#{bindings.LocalUpDirectory1.hints.tooltip}"
                                                          id="it3">
                                                <f:validator binding="#{bindings.LocalUpDirectory1.validator}"/>
                                            </af:inputText>
                                        </af:panelFormLayout>
                                    </af:panelHeader>
                                </f:facet>
                                <f:facet name="top">
                                    <af:inputText value="#{bindings.IntegrationTypeName1.inputValue}"
                                                  label="#{bindings.IntegrationTypeName1.hints.label}"
                                                  required="#{bindings.IntegrationTypeName1.hints.mandatory}"
                                                  columns="#{bindings.IntegrationTypeName1.hints.displayWidth}"
                                                  maximumLength="#{bindings.IntegrationTypeName1.hints.precision}"
                                                  shortDesc="#{bindings.IntegrationTypeName1.hints.tooltip}" id="it1">
                                        <f:validator binding="#{bindings.IntegrationTypeName1.validator}"/>
                                    </af:inputText>
                                </f:facet>
                            </af:panelStretchLayout>
                        </af:panelHeader>
                    </f:facet>
                    <f:facet name="center">
                        <!-- id="af_one_column_header_stretched"  -->
                        <af:decorativeBox theme="dark" id="db1" inlineStyle="width:1050px; background-color:Navy;">
                            <f:facet name="center">
                                <af:panelGroupLayout layout="scroll" id="pgl3" inlineStyle="background-color:Navy;">
                                    <af:panelStretchLayout id="psl3" inlineStyle="width:1008px; height:514px;"
                                                           topHeight="404px" startWidth="0px">
                                        <f:facet name="center">
                                            <af:panelStretchLayout id="psl5" endWidth="742px" startWidth="60px">
                                                <f:facet name="bottom"/>
                                                <f:facet name="center"/>
                                                <f:facet name="end"/>
                                            </af:panelStretchLayout>
                                        </f:facet>
                                        <f:facet name="start">
                                            <af:panelLabelAndMessage label="#{bindings.DocumentImage.hints.label}"
                                                                     id="plam3">
                                                <af:spacer width="10" height="10" id="s2"/>
                                            </af:panelLabelAndMessage>
                                        </f:facet>
                                        <f:facet name="top">
                                            <af:panelStretchLayout id="psl4" startWidth="232px" endWidth="209px"
                                                                   bottomHeight="13px" topHeight="11px">
                                                <f:facet name="center">
                                                    <af:panelFormLayout id="pfl4">
                                                        <f:facet name="footer"/>
                                                        <af:inputFile label="Select Image" id="if1" autoSubmit="true"
                                                                      valueChangeListener="#{ImageBean.uploadFileValueChangeEvent}"/>
                                                        <af:commandButton actionListener="#{bindings.CreateInsert.execute}"
                                                                          text="Restart Load Image Process"
                                                                          disabled="#{!bindings.CreateInsert.enabled}"
                                                                          id="cb2"/>
                                                        <af:commandButton actionListener="#{bindings.Commit.execute}"
                                                                          text="Save"
                                                                          disabled="#{!bindings.Commit.enabled}"
                                                                          id="cb3"/>
                                                        <af:inputText value="#{bindings.ContentType.inputValue}"
                                                                      label="#{bindings.ContentType.hints.label}"
                                                                      required="#{bindings.ContentType.hints.mandatory}"
                                                                      columns="10"
                                                                      maximumLength="#{bindings.ContentType.hints.precision}"
                                                                      shortDesc="#{bindings.ContentType.hints.tooltip}"
                                                                      id="it6" partialTriggers="if1">
                                                            <f:validator binding="#{bindings.ContentType.validator}"/>
                                                        </af:inputText>
                                                        <af:outputText value="#{bindings.DocumentImage.inputValue ne null? 'available' : 'not available'}"
                                                                       id="ot3" partialTriggers="if1"/>
                                                        <af:commandButton text="Download Data" id="cb4"
                                                                          visible="#{bindings.DocumentImage.inputValue ne null}"
                                                                          binding="#{ImageBean.downloadButton}"
                                                                          >
                                                            <af:fileDownloadActionListener contentType="#{bindings.ContentType.inputValue}"
                                                                                           filename="#{bindings.DocumentName.inputValue}"
                                                                                           method="#{ImageBean.downloadImage}"/>
                                                        </af:commandButton>
                                                    </af:panelFormLayout>
                                                </f:facet>
                                                <f:facet name="start">
                                                    <af:panelFormLayout id="pfl1" labelAlignment="top">
                                                        <f:facet name="footer"/>
                                                        <af:inputText label="File from PC to be Transfered" id="it4"/>
                                                    </af:panelFormLayout>
                                                </f:facet>
                                                <f:facet name="end">
                                                    <af:panelFormLayout id="pfl2" labelAlignment="top">
                                                        <f:facet name="footer"/>                                                     
                                                        <af:inputText value="#{bindings.DocumentName.inputValue}"
                                                                      label="File Transfered to Database"
                                                                      required="#{bindings.DocumentName.hints.mandatory}"
                                                                      columns="20"
                                                                      maximumLength="#{bindings.DocumentName.hints.precision}"
                                                                      shortDesc="#{bindings.DocumentName.hints.tooltip}"
                                                                      id="it7" partialTriggers="if1">
                                                            <f:validator binding="#{bindings.DocumentName.validator}"/>
                                                        </af:inputText>
                                                    </af:panelFormLayout>
                                                </f:facet>
                                            </af:panelStretchLayout>
                                        </f:facet>
                                    </af:panelStretchLayout>
                                </af:panelGroupLayout>
                            </f:facet>
                        </af:decorativeBox>
                    </f:facet>
                </af:panelStretchLayout>
            </af:form>
        </af:document>
    </f:view>
</jsp:root>

Answer 1

duplicate of {thread:id=2397056}
@Tshifhiwa you should keep all in one thread. If you feel that you need to open a new thread you should close the old one and put a link into the new one (this one) for reference.
Timo