rich:outputMedia problem
hi, I'm trying to use the fileUpload to upload images .. those images are saved in some folder in my Operating System and I can't access them through a relative path...so I'm using a bean to read this image and display it with the rick:mediaOutput component
in jsf page I have
<rich:dataGrid value="#{productHandler.images}" var="img" columns="1" elements="3" width="600px">
<rich:panel bodyClass="pbody">
<h:panelGrid columns="2">
<a4j:mediaOutput createContent="#{img.paint}"/>
<h:outputText value="#{img.name}" />
</h:panelGrid>
</rich:panel>
<f:facet name="footer">
<rich:datascroller></rich:datascroller>
</f:facet>
</rich:dataGrid>
the image Entity is
@Entity
public class Image implements Serializable{
/**
*
*/
private static final long serialVersionUID = 6941126258540487846L;
private long id;
private String name;
private String path;
@Id @GeneratedValue
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPath() {
return path;
}
public void setPath(String path) {
this.path = path;
}
@Transient
public void paint(OutputStream out) throws IOException{
try {
BufferedImage image2D = ImageIO.read(new File(this.path+this.name));
int width = (int) (0.5 * image2D.getWidth());
int height = (int) (0.5 * image2D.getHeight());
BufferedImage thumbnail = new BufferedImage(width,height,BufferedImage.TYPE_INT_ARGB);
Graphics2D bg = thumbnail.createGraphics();
ImageIO.write(thumbnail, "png", out);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
a snapshot of the handler bean is
@DataModel
private List<Image> images=null;
public List<Image> getImages() {
try{
System.out.println("size : "+images.size());
}catch(Exception e) { System.out.println(e.toString());}
return images;
}
@PersistenceContext
private EntityManager em;
@Factory("images")
public void initImages() {
if(images==null) images=new ArrayList<Image>();
}
public void photoListener(UploadEvent event) {
if(images==null) images=new ArrayList<Image>();
UploadItem item = event.getUploadItem();
log.info("File : '" + item.getFileName() + "' was uploaded");
log.info("hi there");
if (item.isTempFile()) {
File file = item.getFile();
System.out.println("Absolute Path : '" + file.getAbsolutePath() + "'!");
Random random1 = new Random();
Random random2 = new Random();
int folder=random1.nextInt(100);
int subfolder=random2.nextInt(100);
if(folder==0) folder=1;
if(subfolder==0) subfolder=1;
file.renameTo(new File(path+"/"+folder+"/"+subfolder+"/"+item.getFileName()));
Image buffImage=new Image();
buffImage.setName(item.getFileName());
buffImage.setPath(path+"/"+folder+"/"+subfolder+"/");
filename=buffImage.getPath()+buffImage.getName();
em.persist(buffImage);
images.add(buffImage);
product.setImages(images);
System.out.println(folder+" - "+subfolder);
//file.delete();
}
}
when I try to upload, after the upload is complete I get this error
09:44:24,530 ERROR [viewhandler] Error Rendering View[/products/newproduct.xhtml] javax.faces.FacesException: Required attribute element for component newproduct:j_id59:0:j_id62 is null at org.ajax4jsf.renderkit.html.MediaOutputRenderer.doEncodeBegin(MediaOutputRenderer.java:93) at org.ajax4jsf.renderkit.RendererBase.encodeBegin(RendererBase.java:101) at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:813) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:232) at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:178) at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:126) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262) at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:220) at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:215) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:121) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262) at org.richfaces.renderkit.AbstractGridRenderer.encodeOneRow(AbstractGridRenderer.java:96) at org.richfaces.renderkit.AbstractRowsRenderer.process(AbstractRowsRenderer.java:86) at org.ajax4jsf.model.SequenceDataModel.walk(SequenceDataModel.java:101) at org.ajax4jsf.component.UIDataAdaptor.walk(UIDataAdaptor.java:1151) at org.richfaces.renderkit.AbstractRowsRenderer.encodeRows(AbstractRowsRenderer.java:106) at org.richfaces.renderkit.AbstractRowsRenderer.encodeRows(AbstractRowsRenderer.java:91) at org.richfaces.renderkit.AbstractRowsRenderer.encodeChildren(AbstractRowsRenderer.java:138) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262) at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:220) at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:215) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:121) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:124) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxContainerRenderer.encodeAjax(AjaxContainerRenderer.java:123) at org.ajax4jsf.component.AjaxViewRoot.encodeAjax(AjaxViewRoot.java:677) at org.ajax4jsf.component.AjaxViewRoot.encodeChildren(AjaxViewRoot.java:548) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:936) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:196) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:109) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:42) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:636)
what am I doing wrong and is there another way to access photos and files...and display them to my pages?
