Adding JMCR-Stable version
[Benchmarks_CSolver.git] / JMCR-Stable / real-world application / jigsaw / WWW / Doc / Programmer / api / org / w3c / tools / resources / FilterInterface.html
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">\r
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+<HTML>\r
+<HEAD>\r
+<!-- Generated by javadoc (build 1.5.0_11) on Tue Apr 10 15:02:45 UTC 2007 -->\r
+<TITLE>\r
+FilterInterface\r
+</TITLE>\r
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+    parent.document.title="FilterInterface";\r
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+<TR>\r
+<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">\r
+&nbsp;<A HREF="../../../../org/w3c/tools/resources/FileResource.html" title="class in org.w3c.tools.resources"><B>PREV CLASS</B></A>&nbsp;\r
+&nbsp;<A HREF="../../../../org/w3c/tools/resources/FrameArrayAttribute.html" title="class in org.w3c.tools.resources"><B>NEXT CLASS</B></A></FONT></TD>\r
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+  <A HREF="../../../../index.html?org/w3c/tools/resources/FilterInterface.html" target="_top"><B>FRAMES</B></A>  &nbsp;\r
+&nbsp;<A HREF="FilterInterface.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;\r
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+</TR>\r
+<TR>\r
+<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">\r
+  SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;CONSTR&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>\r
+<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">\r
+DETAIL:&nbsp;FIELD&nbsp;|&nbsp;CONSTR&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>\r
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+<A NAME="skip-navbar_top"></A>\r
+<!-- ========= END OF TOP NAVBAR ========= -->\r
+\r
+<HR>\r
+<!-- ======== START OF CLASS DATA ======== -->\r
+<H2>\r
+<FONT SIZE="-1">\r
+org.w3c.tools.resources</FONT>\r
+<BR>\r
+Interface FilterInterface</H2>\r
+<DL>\r
+<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../org/w3c/jigsaw/filters/AccessLimitFilter.html" title="class in org.w3c.jigsaw.filters">AccessLimitFilter</A>, <A HREF="../../../../org/w3c/jigsaw/acl/AclFilter.html" title="class in org.w3c.jigsaw.acl">AclFilter</A>, <A HREF="../../../../org/w3c/jigsaw/auth/AuthFilter.html" title="class in org.w3c.jigsaw.auth">AuthFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/CacheFilter.html" title="class in org.w3c.jigsaw.filters">CacheFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/CookieFilter.html" title="class in org.w3c.jigsaw.filters">CookieFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/CounterFilter.html" title="class in org.w3c.jigsaw.filters">CounterFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/DebugFilter.html" title="class in org.w3c.jigsaw.filters">DebugFilter</A>, <A HREF="../../../../org/w3c/jigsaw/auth/DigestAuthFilter.html" title="class in org.w3c.jigsaw.auth">DigestAuthFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/ErrorFilter.html" title="class in org.w3c.jigsaw.filters">ErrorFilter</A>, <A HREF="../../../../org/w3c/jigsaw/auth/GenericAuthFilter.html" title="class in org.w3c.jigsaw.auth">GenericAuthFilter</A>, <A HREF="../../../../org/w3c/jigedit/filters/GrepPutFilter.html" title="class in org.w3c.jigedit.filters">GrepPutFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/GZIPFilter.html" title="class in org.w3c.jigsaw.filters">GZIPFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/HeaderFilter.html" title="class in org.w3c.jigsaw.filters">HeaderFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/HourLimiterFilter.html" title="class in org.w3c.jigsaw.filters">HourLimiterFilter</A>, <A HREF="../../../../org/w3c/jigedit/filters/JigEditAclFilter.html" title="class in org.w3c.jigedit.filters">JigEditAclFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/LogFilter.html" title="class in org.w3c.jigsaw.filters">LogFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/NoCacheFilter.html" title="class in org.w3c.jigsaw.filters">NoCacheFilter</A>, <A HREF="../../../../org/w3c/jigsaw/pics/PICSFilter.html" title="class in org.w3c.jigsaw.pics">PICSFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/ProcessFilter.html" title="class in org.w3c.jigsaw.filters">ProcessFilter</A>, <A HREF="../../../../org/w3c/jigedit/filters/PutFilter.html" title="class in org.w3c.jigedit.filters">PutFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/PutSizeFilter.html" title="class in org.w3c.jigsaw.filters">PutSizeFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/RegexRedirectFilter.html" title="class in org.w3c.jigsaw.filters">RegexRedirectFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/RequestedHeaderFilter.html" title="class in org.w3c.jigsaw.filters">RequestedHeaderFilter</A>, <A HREF="../../../../org/w3c/tools/resources/ResourceFilter.html" title="class in org.w3c.tools.resources">ResourceFilter</A>, <A HREF="../../../../org/w3c/tools/resources/ResourceStateFilter.html" title="class in org.w3c.tools.resources">ResourceStateFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/SimpleCacheFilter.html" title="class in org.w3c.jigsaw.filters">SimpleCacheFilter</A>, <A HREF="../../../../org/w3c/jigedit/filters/SimpleGrepFilter.html" title="class in org.w3c.jigedit.filters">SimpleGrepFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/TEFilter.html" title="class in org.w3c.jigsaw.filters">TEFilter</A>, <A HREF="../../../../org/w3c/jigedit/filters/TidyPutFilter.html" title="class in org.w3c.jigedit.filters">TidyPutFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/URISizeLimiterFilter.html" title="class in org.w3c.jigsaw.filters">URISizeLimiterFilter</A>, <A HREF="../../../../org/w3c/jigsaw/filters/UseProxyFilter.html" title="class in org.w3c.jigsaw.filters">UseProxyFilter</A></DD>\r
+</DL>\r
+<HR>\r
+<DL>\r
+<DT><PRE>public interface <B>FilterInterface</B></DL>\r
+</PRE>\r
+\r
+<P>\r
+<HR>\r
+\r
+<P>\r
+\r
+<!-- ========== METHOD SUMMARY =========== -->\r
+\r
+<A NAME="method_summary"><!-- --></A>\r
+<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">\r
+<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">\r
+<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">\r
+<B>Method Summary</B></FONT></TH>\r
+</TR>\r
+<TR BGCOLOR="white" CLASS="TableRowColor">\r
+<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">\r
+<CODE>&nbsp;<A HREF="../../../../org/w3c/tools/resources/ReplyInterface.html" title="interface in org.w3c.tools.resources">ReplyInterface</A></CODE></FONT></TD>\r
+<TD><CODE><B><A HREF="../../../../org/w3c/tools/resources/FilterInterface.html#exceptionFilter(org.w3c.tools.resources.RequestInterface, org.w3c.tools.resources.ProtocolException, org.w3c.tools.resources.FilterInterface[], int)">exceptionFilter</A></B>(<A HREF="../../../../org/w3c/tools/resources/RequestInterface.html" title="interface in org.w3c.tools.resources">RequestInterface</A>&nbsp;request,\r
+                <A HREF="../../../../org/w3c/tools/resources/ProtocolException.html" title="class in org.w3c.tools.resources">ProtocolException</A>&nbsp;ex,\r
+                <A HREF="../../../../org/w3c/tools/resources/FilterInterface.html" title="interface in org.w3c.tools.resources">FilterInterface</A>[]&nbsp;filters,\r
+                int&nbsp;fidx)</CODE>\r
+\r
+<BR>\r
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>\r
+</TR>\r
+<TR BGCOLOR="white" CLASS="TableRowColor">\r
+<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">\r
+<CODE>&nbsp;<A HREF="../../../../org/w3c/tools/resources/ReplyInterface.html" title="interface in org.w3c.tools.resources">ReplyInterface</A></CODE></FONT></TD>\r
+<TD><CODE><B><A HREF="../../../../org/w3c/tools/resources/FilterInterface.html#ingoingFilter(org.w3c.tools.resources.RequestInterface, org.w3c.tools.resources.FilterInterface[], int)">ingoingFilter</A></B>(<A HREF="../../../../org/w3c/tools/resources/RequestInterface.html" title="interface in org.w3c.tools.resources">RequestInterface</A>&nbsp;request,\r
+              <A HREF="../../../../org/w3c/tools/resources/FilterInterface.html" title="interface in org.w3c.tools.resources">FilterInterface</A>[]&nbsp;filters,\r
+              int&nbsp;fidx)</CODE>\r
+\r
+<BR>\r
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The filter's ingoing method is called before any request processing is\r
+ done by the target resource.</TD>\r
+</TR>\r
+<TR BGCOLOR="white" CLASS="TableRowColor">\r
+<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">\r
+<CODE>&nbsp;boolean</CODE></FONT></TD>\r
+<TD><CODE><B><A HREF="../../../../org/w3c/tools/resources/FilterInterface.html#lookup(org.w3c.tools.resources.LookupState, org.w3c.tools.resources.LookupResult)">lookup</A></B>(<A HREF="../../../../org/w3c/tools/resources/LookupState.html" title="class in org.w3c.tools.resources">LookupState</A>&nbsp;ls,\r
+       <A HREF="../../../../org/w3c/tools/resources/LookupResult.html" title="class in org.w3c.tools.resources">LookupResult</A>&nbsp;lr)</CODE>\r
+\r
+<BR>\r
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The lookup stage filtering.</TD>\r
+</TR>\r
+<TR BGCOLOR="white" CLASS="TableRowColor">\r
+<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">\r
+<CODE>&nbsp;<A HREF="../../../../org/w3c/tools/resources/ReplyInterface.html" title="interface in org.w3c.tools.resources">ReplyInterface</A></CODE></FONT></TD>\r
+<TD><CODE><B><A HREF="../../../../org/w3c/tools/resources/FilterInterface.html#outgoingFilter(org.w3c.tools.resources.RequestInterface, org.w3c.tools.resources.ReplyInterface, org.w3c.tools.resources.FilterInterface[], int)">outgoingFilter</A></B>(<A HREF="../../../../org/w3c/tools/resources/RequestInterface.html" title="interface in org.w3c.tools.resources">RequestInterface</A>&nbsp;request,\r
+               <A HREF="../../../../org/w3c/tools/resources/ReplyInterface.html" title="interface in org.w3c.tools.resources">ReplyInterface</A>&nbsp;reply,\r
+               <A HREF="../../../../org/w3c/tools/resources/FilterInterface.html" title="interface in org.w3c.tools.resources">FilterInterface</A>[]&nbsp;filters,\r
+               int&nbsp;fidx)</CODE>\r
+\r
+<BR>\r
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The filter's outgoing method is called once the target resource has\r
+ computed a reply.</TD>\r
+</TR>\r
+<TR BGCOLOR="white" CLASS="TableRowColor">\r
+<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">\r
+<CODE>&nbsp;java.io.OutputStream</CODE></FONT></TD>\r
+<TD><CODE><B><A HREF="../../../../org/w3c/tools/resources/FilterInterface.html#outputFilter(org.w3c.tools.resources.RequestInterface, org.w3c.tools.resources.ReplyInterface, java.io.OutputStream)">outputFilter</A></B>(<A HREF="../../../../org/w3c/tools/resources/RequestInterface.html" title="interface in org.w3c.tools.resources">RequestInterface</A>&nbsp;request,\r
+             <A HREF="../../../../org/w3c/tools/resources/ReplyInterface.html" title="interface in org.w3c.tools.resources">ReplyInterface</A>&nbsp;reply,\r
+             java.io.OutputStream&nbsp;output)</CODE>\r
+\r
+<BR>\r
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>\r
+</TR>\r
+</TABLE>\r
+&nbsp;\r
+<P>\r
+\r
+<!-- ============ METHOD DETAIL ========== -->\r
+\r
+<A NAME="method_detail"><!-- --></A>\r
+<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">\r
+<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">\r
+<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">\r
+<B>Method Detail</B></FONT></TH>\r
+</TR>\r
+</TABLE>\r
+\r
+<A NAME="lookup(org.w3c.tools.resources.LookupState, org.w3c.tools.resources.LookupResult)"><!-- --></A><H3>\r
+lookup</H3>\r
+<PRE>\r
+boolean <B>lookup</B>(<A HREF="../../../../org/w3c/tools/resources/LookupState.html" title="class in org.w3c.tools.resources">LookupState</A>&nbsp;ls,\r
+               <A HREF="../../../../org/w3c/tools/resources/LookupResult.html" title="class in org.w3c.tools.resources">LookupResult</A>&nbsp;lr)\r
+               throws <A HREF="../../../../org/w3c/tools/resources/ProtocolException.html" title="class in org.w3c.tools.resources">ProtocolException</A></PRE>\r
+<DL>\r
+<DD>The lookup stage filtering.\r
+ This filter is invoked during lookup, it can cancel the lookup operation\r
+ in progress, by either throwing an exception (in case of error), or\r
+ by returning <strong>true</strong>, in which case, the filter has\r
+ perform the whole lookup operation itself.\r
+<P>\r
+<DD><DL>\r
+<DT><B>Parameters:</B><DD><CODE>ls</CODE> - The current lookup state, describing the state of the lookup\r
+ operation in progress.<DD><CODE>lr</CODE> - The current lookup result, describing the already computed\r
+ part of the lookup operation.\r
+<DT><B>Returns:</B><DD>A boolean, <strong>true</strong> if lookup has been completed\r
+ by the filter, and nothing else need to be done to complete it. \r
+ Otherwise lookup should continue normally, and the filter returns\r
+ <strong>false</strong>.\r
+<DT><B>Throws:</B>\r
+<DD><CODE><A HREF="../../../../org/w3c/tools/resources/ProtocolException.html" title="class in org.w3c.tools.resources">ProtocolException</A></CODE> - If some error occurs, and the whole \r
+ lookup operation cannot be continued normally.</DL>\r
+</DD>\r
+</DL>\r
+<HR>\r
+\r
+<A NAME="ingoingFilter(org.w3c.tools.resources.RequestInterface, org.w3c.tools.resources.FilterInterface[], int)"><!-- --></A><H3>\r
+ingoingFilter</H3>\r
+<PRE>\r
+<A HREF="../../../../org/w3c/tools/resources/ReplyInterface.html" title="interface in org.w3c.tools.resources">ReplyInterface</A> <B>ingoingFilter</B>(<A HREF="../../../../org/w3c/tools/resources/RequestInterface.html" title="interface in org.w3c.tools.resources">RequestInterface</A>&nbsp;request,\r
+                             <A HREF="../../../../org/w3c/tools/resources/FilterInterface.html" title="interface in org.w3c.tools.resources">FilterInterface</A>[]&nbsp;filters,\r
+                             int&nbsp;fidx)\r
+                             throws <A HREF="../../../../org/w3c/tools/resources/ProtocolException.html" title="class in org.w3c.tools.resources">ProtocolException</A></PRE>\r
+<DL>\r
+<DD>The filter's ingoing method is called before any request processing is\r
+ done by the target resource.\r
+ <p>This method can (if able) compute the whole request's reply, and \r
+ return it. If processing should continue normally, then the filter\r
+ must return <strong>null</strong>.\r
+ <p>If a filter's <code>ingoingFilter</code> method gets called, \r
+ then it is guaranteed that either its <code>outgoingFilter</code>\r
+ method or its <code>exceptionFilter</code> method gets called.\r
+<P>\r
+<DD><DL>\r
+<DT><B>Parameters:</B><DD><CODE>request</CODE> - The request being processed.<DD><CODE>filters</CODE> - The whole array of filters to be applied before\r
+ actually continuing the process.<DD><CODE>fidx</CODE> - The index in the above array of the filter being called.\r
+<DT><B>Returns:</B><DD>A Reply instance, if the filter knows how to compute it, or\r
+ <strong>null</strong> if the request processing should continue\r
+ normally.\r
+<DT><B>Throws:</B>\r
+<DD><CODE><A HREF="../../../../org/w3c/tools/resources/ProtocolException.html" title="class in org.w3c.tools.resources">ProtocolException</A></CODE> - If the filter fails.</DL>\r
+</DD>\r
+</DL>\r
+<HR>\r
+\r
+<A NAME="outgoingFilter(org.w3c.tools.resources.RequestInterface, org.w3c.tools.resources.ReplyInterface, org.w3c.tools.resources.FilterInterface[], int)"><!-- --></A><H3>\r
+outgoingFilter</H3>\r
+<PRE>\r
+<A HREF="../../../../org/w3c/tools/resources/ReplyInterface.html" title="interface in org.w3c.tools.resources">ReplyInterface</A> <B>outgoingFilter</B>(<A HREF="../../../../org/w3c/tools/resources/RequestInterface.html" title="interface in org.w3c.tools.resources">RequestInterface</A>&nbsp;request,\r
+                              <A HREF="../../../../org/w3c/tools/resources/ReplyInterface.html" title="interface in org.w3c.tools.resources">ReplyInterface</A>&nbsp;reply,\r
+                              <A HREF="../../../../org/w3c/tools/resources/FilterInterface.html" title="interface in org.w3c.tools.resources">FilterInterface</A>[]&nbsp;filters,\r
+                              int&nbsp;fidx)\r
+                              throws <A HREF="../../../../org/w3c/tools/resources/ProtocolException.html" title="class in org.w3c.tools.resources">ProtocolException</A></PRE>\r
+<DL>\r
+<DD>The filter's outgoing method is called once the target resource has\r
+ computed a reply.\r
+ <p>This method can return a Reply instance, in which case, the\r
+ processing should be aborted, and  the returned reply should be emited\r
+ back to the client. Otherwise, if the filter returns <strong>null\r
+ </strong> the processing continues normally.\r
+<P>\r
+<DD><DL>\r
+<DT><B>Parameters:</B><DD><CODE>request</CODE> - The request being processed.<DD><CODE>reply</CODE> - The original reply, as emited by the target resource, \r
+ and which has already been processed by the first filters.<DD><CODE>filters</CODE> - The whole array of filters to be applied before\r
+ actually continuing the process.<DD><CODE>fidx</CODE> - The index in the above array of the filter being called.\r
+<DT><B>Throws:</B>\r
+<DD><CODE><A HREF="../../../../org/w3c/tools/resources/ProtocolException.html" title="class in org.w3c.tools.resources">ProtocolException</A></CODE> - If the filter fails.</DL>\r
+</DD>\r
+</DL>\r
+<HR>\r
+\r
+<A NAME="exceptionFilter(org.w3c.tools.resources.RequestInterface, org.w3c.tools.resources.ProtocolException, org.w3c.tools.resources.FilterInterface[], int)"><!-- --></A><H3>\r
+exceptionFilter</H3>\r
+<PRE>\r
+<A HREF="../../../../org/w3c/tools/resources/ReplyInterface.html" title="interface in org.w3c.tools.resources">ReplyInterface</A> <B>exceptionFilter</B>(<A HREF="../../../../org/w3c/tools/resources/RequestInterface.html" title="interface in org.w3c.tools.resources">RequestInterface</A>&nbsp;request,\r
+                               <A HREF="../../../../org/w3c/tools/resources/ProtocolException.html" title="class in org.w3c.tools.resources">ProtocolException</A>&nbsp;ex,\r
+                               <A HREF="../../../../org/w3c/tools/resources/FilterInterface.html" title="interface in org.w3c.tools.resources">FilterInterface</A>[]&nbsp;filters,\r
+                               int&nbsp;fidx)</PRE>\r
+<DL>\r
+<DD><DL>\r
+<DT><B>Parameters:</B><DD><CODE>request</CODE> - The request being processed.<DD><CODE>ex</CODE> - The exception that occured during processing the request. \r
+ and which has already been processed by the first filters.<DD><CODE>filters</CODE> - The whole array of filters to be applied before\r
+ actually continuing the process.<DD><CODE>fidx</CODE> - The index in the above array of the filter being called.</DL>\r
+</DD>\r
+</DL>\r
+<HR>\r
+\r
+<A NAME="outputFilter(org.w3c.tools.resources.RequestInterface, org.w3c.tools.resources.ReplyInterface, java.io.OutputStream)"><!-- --></A><H3>\r
+outputFilter</H3>\r
+<PRE>\r
+java.io.OutputStream <B>outputFilter</B>(<A HREF="../../../../org/w3c/tools/resources/RequestInterface.html" title="interface in org.w3c.tools.resources">RequestInterface</A>&nbsp;request,\r
+                                  <A HREF="../../../../org/w3c/tools/resources/ReplyInterface.html" title="interface in org.w3c.tools.resources">ReplyInterface</A>&nbsp;reply,\r
+                                  java.io.OutputStream&nbsp;output)</PRE>\r
+<DL>\r
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