Restricting The Size Of The File To Be Upload in CM Repository

[Former Member]

Summary

One of the major problems in Content Management is restricting the size of the file to be upload in CM repository. In this blog I had come up with a solution in which u can restrict the size of the file based on your requirement.

The steps for restricting the upload, followed in the code are as follows:

1. Create the resource

aResource = aCollection.createResource(this.resource, this.propertyMap, aContent);

2. Create property object

IProperty prop = null;

3. Get the property using property name

prop=aResource.getProperty(PropertyName.createContentLength());

4. Setcontentlength condition maxsize(in bytes)

if(prop!=null && prop.getLongIntValue()>maxsize)

5. Delete the resource if it is greater than specified value

aResource.delete();

6. Else upload the file.

CODE:

package com.sap.sdn.codesamples.upload;import java.io.FileInputStream;import java.io.FileNotFoundException;import com.sapportals.htmlb.FileUpload;import com.sapportals.htmlb.InputField;import com.sapportals.htmlb.RadioButtonGroup;import com.sapportals.htmlb.event.Event;import com.sapportals.htmlb.rendering.IPageContext;import com.sapportals.htmlb.rendering.PageContextFactory;import com.sapportals.portal.prt.component.AbstractPortalComponent;import com.sapportals.portal.prt.component.IPortalComponentRequest;import com.sapportals.portal.prt.component.IPortalComponentResponse;import com.sapportals.portal.security.usermanagement.IUser;import com.sapportals.wcm.repository.AccessDeniedException;import com.sapportals.wcm.repository.Content;import com.sapportals.wcm.repository.ICollection;import com.sapportals.wcm.repository.IMutablePropertyMap;import com.sapportals.wcm.repository.IProperty;import com.sapportals.wcm.repository.IResourceFactory;import com.sapportals.wcm.repository.MutablePropertyMap;import com.sapportals.wcm.repository.Property;import com.sapportals.wcm.repository.PropertyName;import com.sapportals.wcm.repository.ResourceContext;import com.sapportals.wcm.repository.ResourceFactory;import com.sapportals.wcm.util.content.IContent;import com.sapportals.wcm.util.uri.RID;public class UploadIview extends AbstractPortalComponent { private IPageContext context; private String status = ""; private String repository; private String resource; private String content; private String mimetype; private String accessLevel; private String documentStatus; private IUser loggedOnUser; private FileInputStream sourceFileInput; private IMutablePropertyMap propertyMap; private final static String NAMESPACE = "demo"; /**  *  This is the method called by the Portal  */  public void doContent(IPortalComponentRequest request, IPortalComponentResponse response) {  com.sapportals.portal.prt.resource.IResource jspResource = request.getResource("jsp", "pagelet/UploadCMResource.jsp");  // get the page context  IPageContext context = PageContextFactory.createPageContext(request, response);    // get the logged on user  this.loggedOnUser = (IUser) request.getUser().getUser();    // get the event  Event event = context.getCurrentEvent();    this.status = "";  if (event != null) {   // handle upload button   if (event.getAction().equalsIgnoreCase("onUploadClick")) {    // get the file    FileUpload fileUpload = (FileUpload) context.getComponentForId("fileUpload");    if (fileUpload.getFile() == null) {     // user hasn't entered a file     this.status = "please add a file";    }            else {     // get infos about this file and create a FileInputStream     this.mimetype = fileUpload.getFile().getContentType();     this.resource = fileUpload.getFile().getFileName();     try {      this.sourceFileInput = new FileInputStream(fileUpload.getFile().getFile().getAbsolutePath());     } catch (FileNotFoundException ex) {      this.status = "file not found: " + ex.getLocalizedMessage() + "";     }          // get the repository where the resource will be stored     this.repository = ((InputField) context.getComponentForId("Repository")).getValue().toString();     // get the selected properties -> these properties will be stored as custom properties     RadioButtonGroup rb1 = (RadioButtonGroup) context.getComponentForId("rb1");     this.accessLevel = rb1.getSelection();     RadioButtonGroup rb2 = (RadioButtonGroup) context.getComponentForId("rb2");     this.documentStatus = rb2.getSelection();          // call method to create the custom properties     this.createCustomProperties();          // call method for uploading the resource     this.uploadCMResource();    }   }   // handle cancel button   if (event.getAction().equalsIgnoreCase("onCancelClick")) {    this.status = "";   }  }  // set the status in the request  request.getServletRequest().setAttribute("Status", this.status);  response.include(request, jspResource); } /**  *  This method uploads a resource within the CM  */ private void uploadCMResource() {  ICollection aCollection = null;  com.sapportals.wcm.repository.IResource aResource = null;  ResourceContext rContext = null;  if (this.loggedOnUser.isAuthenticated()) {   // create a resource context with the authenticated user   rContext = new ResourceContext(this.loggedOnUser);   // create a RID to handle a resource   RID aRid = new RID(this.repository);   try {    // get an instance of a resource factory    IResourceFactory aResourceFactory = ResourceFactory.getInstance();    // retrieve a collection with context    aCollection = (ICollection) aResourceFactory.getResource(aRid, rContext);    // create a new content for this resource    IContent aContent = new Content(this.sourceFileInput, this.mimetype, -1L);        if (aCollection != null) {     // create the resource     aResource = aCollection.createResource(this.resource, this.propertyMap, aContent);     IProperty prop = null;     prop = aResource.getProperty(PropertyName.createContentLength());       if (prop!=null && prop.getLongIntValue()>50240)  {                aResource.delete();        this.status = "resource cannot be uploaded ";       }             else{          this.status = "resource " + aResource.getDisplayName()+ " successfully created.";     }    } else {     // user wants to store the resouce in a colletion who does not exists     this.status = "repository path does not exist: " + this.repository + "";    }   // handle exceptions   } catch (AccessDeniedException ex) {    this.status = "access denied: " + ex.getLocalizedMessage() + "";   } catch (com.sapportals.wcm.repository.ResourceException ex) {    this.status = "resource exception: " + ex.getLocalizedMessage() + "";   }  } }  /**  *  This method creates the custom properties  */  private void createCustomProperties() {  try {   // create a new MutablePropertyMap   this.propertyMap = new MutablePropertyMap();      // create property for the acces level   IProperty property1 = new Property( new PropertyName(NAMESPACE, "Access_Level"), this.accessLevel);   // put this repository to the map   this.propertyMap.put(property1);      // create property for the document status   IProperty property2 = new Property( new PropertyName(NAMESPACE, "Document_status"), this.documentStatus);   // put this repository to the map   this.propertyMap.put(property2);  // handle exceptions  } catch ( com.sapportals.wcm.repository.ResourceException ex) {   this.status = "resource exception: " + ex.getLocalizedMessage() + "";  } }}

Default.properties:

ClassName=com.sap.sdn.codesamples.upload.UploadIview

ServicesReference=htmlb, usermanagement, knowledgemanagement tagLib.value=/SERVICE/htmlb/taglib/htmlb.tld

UploadIview.properties:

ServicesReference=htmlb, usermanagement, landscape, knowledgemanagement

ClassName=com.sap.sdn.codesamples.upload.UploadIview tagLib.value=/SERVICE/htmlb/taglib/htmlb.tld