Getting lenght/size of the document in response xml.

Hi,

The response XML for following URL does not contains length of the document present inside the Documents library under the "entry". element.
URL : http://%3cdomain%3e.sharepoint.com/TeamSite/_vti_bin/ListData.svc/Documents

This URL is invoked using org.apache.http.client.HttpClient and org.apache.http.client.methods.HttpGet

Kindly help in getting the length of the document.

A part of the Response XML:

<entry m:etag="W/&quot;2&quot;">
    <id>http://<domain>.sharepoint.com/TeamSite/_vti_bin/ListData.svc/Documents(4)</id>
    <title type="text"></title>
    <updated>2013-01-02T03:38:25-08:00</updated>
    <author>
      <name />
    </author>
    <link m:etag="&quot;{4E03FD8D-0126-4FD7-A710-7CA0C5B8C394},2&quot;" rel="edit-media" title="DocumentsItem" href="Documents(4)/$value" />
    <link rel="edit" title="DocumentsItem" href="Documents(4)" />
    <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/CreatedBy" type="application/atom+xml;type=entry" title="CreatedBy" href="Documents(4)/CreatedBy" />
    <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/ModifiedBy" type="application/atom+xml;type=entry" title="ModifiedBy" href="Documents(4)/ModifiedBy" />
    <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/CheckedOutTo" type="application/atom+xml;type=entry" title="CheckedOutTo" href="Documents(4)/CheckedOutTo" />
    <category term="Microsoft.SharePoint.DataService.DocumentsItem" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
    <content type="application/octetstream" src="http://%3cdomain%20originalattribute=/" />
    <m:properties xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices">
      <d:Id m:type="Edm.Int32">4</d:Id>
      <d:ContentTypeID>0x010100DFF67161EFFC3C46A8FD20E81650FD3C00E0A03F306D51DE44816F3E4ED69BE7A8</d:ContentTypeID>
      <d:ContentType>Word</d:ContentType>
      <d:Created m:type="Edm.DateTime">2013-01-02T03:36:12</d:Created>
      <d:CreatedById m:type="Edm.Int32">11</d:CreatedById>
      <d:Modified m:type="Edm.DateTime">2013-01-02T03:38:25</d:Modified>
      <d:ModifiedById m:type="Edm.Int32">11</d:ModifiedById>
      <d:CopySource m:null="true"></d:CopySource>
      <d:ApprovalStatus>0</d:ApprovalStatus>
      <d:Path>/TeamSite/Documents</d:Path>
      <d:CheckedOutToId m:type="Edm.Int32" m:null="true"></d:CheckedOutToId>
      <d:Name><docname>.docx</d:Name>
      <d:VirusStatus>77567</d:VirusStatus>
      <d:IsCurrentVersion m:type="Edm.Boolean">true</d:IsCurrentVersion>
      <d:Owshiddenversion m:type="Edm.Int32">2</d:Owshiddenversion>
      <d:Version>1.0</d:Version>
      <d:Title m:null="true"></d:Title>
    </m:properties>
  </entry>