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Apache Struts API Documentation: Class DownloadAction
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SUMMARY: <A HREF="#inner_class_summary">INNER</A> | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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org.apache.struts.actions</FONT>
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Class DownloadAction</H2>
<PRE>
java.lang.Object
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+--<A HREF="../../../../org/apache/struts/action/Action.html">org.apache.struts.action.Action</A>
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+--<B>org.apache.struts.actions.DownloadAction</B>
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<DT>public abstract class <B>DownloadAction</B><DT>extends <A HREF="../../../../org/apache/struts/action/Action.html">Action</A></DL>
<P>
This is an abstract base class that minimizes the amount of special coding that needs to be written to download a file. All that is required to use this class is to extend it and implement the <code>getStreamInfo()</code> method so that it returns the relevant information for the file (or other stream) to be downloaded. Optionally, the <code>getBufferSize()</code> method may be overridden to customize the size of the buffer used to transfer the file.
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<DT><B>Since: </B><DD>Struts 1.2.6</DD>
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<CODE>static class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/actions/DownloadAction.FileStreamInfo.html">DownloadAction.FileStreamInfo</A></B></CODE>
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A concrete implementation of the <code>StreamInfo</code> interface which simplifies the downloading of a file from the disk.</TD>
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<CODE>static class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/actions/DownloadAction.ResourceStreamInfo.html">DownloadAction.ResourceStreamInfo</A></B></CODE>
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A concrete implementation of the <code>StreamInfo</code> interface which simplifies the downloading of a web application resource.</TD>
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<CODE>static interface</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/actions/DownloadAction.StreamInfo.html">DownloadAction.StreamInfo</A></B></CODE>
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The information on a file, or other stream, to be downloaded by the <code>DownloadAction</code>.</TD>
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<CODE>protected static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/actions/DownloadAction.html#DEFAULT_BUFFER_SIZE">DEFAULT_BUFFER_SIZE</A></B></CODE>
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If the <code>getBufferSize()</code> method is not overridden, this is the buffer size that will be used to transfer the data to the servlet output stream.</TD>
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<TD><B>Fields inherited from class org.apache.struts.action.<A HREF="../../../../org/apache/struts/action/Action.html">Action</A></B></TD>
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<TD><CODE><A HREF="../../../../org/apache/struts/action/Action.html#defaultLocale">defaultLocale</A>, <A HREF="../../../../org/apache/struts/action/Action.html#servlet">servlet</A>, <A HREF="../../../../org/apache/struts/action/Action.html#token">token</A></CODE></TD>
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<TD><CODE><B><A HREF="../../../../org/apache/struts/actions/DownloadAction.html#DownloadAction()">DownloadAction</A></B>()</CODE>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/actions/DownloadAction.html#copy(java.io.InputStream, java.io.OutputStream)">copy</A></B>(java.io.InputStream input, java.io.OutputStream output)</CODE>
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Copy bytes from an <code>InputStream</code> to an <code>OutputStream</code>.</TD>
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<CODE> <A HREF="../../../../org/apache/struts/action/ActionForward.html">ActionForward</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/actions/DownloadAction.html#execute(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)">execute</A></B>(<A HREF="../../../../org/apache/struts/action/ActionMapping.html">ActionMapping</A> mapping, <A HREF="../../../../org/apache/struts/action/ActionForm.html">ActionForm</A> form, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)</CODE>
<BR>
Process the specified HTTP request, and create the corresponding HTTP response (or forward to another web component that will create it).</TD>
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