[Archive-access-cvs] SF.net SVN: archive-access:[3196] trunk/archive-access/projects/wayback/ wayback-webapp/src/main/webapp/WEB-INF/replay

[<bra...@us...>]

Revision: 3196
          http://archive-access.svn.sourceforge.net/archive-access/?rev=3196&view=rev
Author:   bradtofel
Date:     2010-07-28 00:29:26 +0000 (Wed, 28 Jul 2010)

Log Message:
-----------
INITIAL REV: very preliminary Memento-style date-time content negotiation support. .JSP files really need some cleanup. lots of static references and date parsing operations should be centralized into a Memento.java support class.

Added Paths:
-----------
    trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/WEB-INF/replay/MementoAggregate.jsp
    trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/WEB-INF/replay/MementoValidity.jsp

Added: trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/WEB-INF/replay/MementoAggregate.jsp
===================================================================
--- trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/WEB-INF/replay/MementoAggregate.jsp	                        (rev 0)
+++ trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/WEB-INF/replay/MementoAggregate.jsp	2010-07-28 00:29:26 UTC (rev 3196)
@@ -0,0 +1,3 @@
+<jsp:include page="/WEB-INF/replay/ArchiveComment.jsp" flush="true" />
+<jsp:include page="/WEB-INF/replay/MementoValidity.jsp" flush="true" />
+<jsp:include page="/WEB-INF/replay/Disclaimer.jsp" flush="true" />

Added: trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/WEB-INF/replay/MementoValidity.jsp
===================================================================
--- trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/WEB-INF/replay/MementoValidity.jsp	                        (rev 0)
+++ trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/WEB-INF/replay/MementoValidity.jsp	2010-07-28 00:29:26 UTC (rev 3196)
@@ -0,0 +1,103 @@
+<%@ page import="org.archive.wayback.core.UIResults" %>
+<%@ page import="org.archive.wayback.core.CaptureSearchResults" %>
+<%@ page import="org.archive.wayback.core.CaptureSearchResult"%>
+<%@ page import="java.util.Date" %>
+<%@ page import="org.archive.wayback.core.WaybackRequest" %>
+<%@ page import="org.archive.wayback.archivalurl.ArchivalUrlResultURIConverter" %>
+<%@ page import="java.text.SimpleDateFormat" %>
+<%@ page import="java.util.Iterator" %>
+<%
+  	UIResults results = UIResults.extractCaptureQuery(request);
+  	WaybackRequest wbRequest = results.getWbRequest();
+  	CaptureSearchResults cResults = results.getCaptureResults();
+  	CaptureSearchResult res = cResults.getClosest(wbRequest, true);
+  	String u = wbRequest.getRequestUrl();
+  	SimpleDateFormat httpformatterl = new SimpleDateFormat(
+  			"E, dd MMM yyyy HH:mm:ss z");
+  	String agguri = results.getContextConfig("aggregationPrefix")
+  			+ "timebundle/" + u;
+  	String timemap = " , <"
+  			+ results.getContextConfig("aggregationPrefix")
+  			+ "timemap/link/" + u
+  			+ ">;rel=\"timemap\"; type=\"text/csv\"";
+  	ArchivalUrlResultURIConverter uriconverter = 
+  		(ArchivalUrlResultURIConverter) results.getURIConverter();
+
+  	String uriPrefix = uriconverter.getReplayURIPrefix();
+
+  	Date f = cResults.getFirstResultDate();
+  	Date l = cResults.getLastResultDate();
+  	String qvalue = "1.0"; //just example
+  	StringBuffer sb = new StringBuffer();
+  	response.setHeader("Content-Datetime", httpformatterl.format(res
+  			.getCaptureDate()));
+  	SimpleDateFormat formatterk = new SimpleDateFormat("yyyyMMddHHmmss");
+  	sb.append(", <" + uriPrefix + formatterk.format(f) + "/" + u
+  			+ ">;rel=\"first-memento\"; datetime=\""
+  			+ httpformatterl.format(f) + "\"");
+  	if (!f.equals(l)) {
+
+  		sb.append(", <" + uriPrefix + formatterk.format(f) + "/" + u
+  				+ ">;rel=\"last-memento\"; datetime=\""
+  				+ httpformatterl.format(f) + "\"");
+  	}
+
+  	// calculate closest values for alternates
+  	Date closestDate = res.getCaptureDate();
+  	CaptureSearchResult closestleft = null;
+  	CaptureSearchResult closestright = null;
+  	long rclosestDistance = 0;
+  	long lclosestDistance = 0;
+  	CaptureSearchResult cur = null;
+  	String anchorDate = null;
+
+  	long maxWindow = -1;
+  	long wantTime = closestDate.getTime();
+
+  	Iterator<CaptureSearchResult> itr = cResults.iterator();
+  	while (itr.hasNext()) {
+  		cur = itr.next();
+  		cur.getCaptureDate();
+  		long curDistance = wantTime - cur.getCaptureDate().getTime();
+  		// == 0 propuskaem
+  		if (curDistance > 0) {
+  			if ((closestright == null)
+  					|| (Math.abs(curDistance) < Math
+  							.abs(rclosestDistance))) {
+  				closestright = cur;
+  				rclosestDistance = Math.abs(curDistance);
+  			}
+  		}
+
+  		if (curDistance < 0) {
+  			if ((closestleft == null)
+  					|| (Math.abs(curDistance) < Math
+  							.abs(lclosestDistance))) {
+  				closestleft = cur;
+  				lclosestDistance = Math.abs(curDistance);
+  			}
+  		}
+
+  	}
+
+  	if (closestleft != null) {
+  		if (!closestleft.getCaptureDate().equals(f)) {
+  			sb.append(", <" + uriPrefix + formatterk.format(f) + "/"
+  					+ u + ">;rel=\"prev-memento\"; datetime=\""
+  					+ httpformatterl.format(f) + "\"");
+  		}
+  	}
+  	if (closestright != null) {
+  		if (!closestright.getCaptureDate().equals(l)) {
+  			sb.append(", <" + uriPrefix + formatterk.format(f) + "/"
+  					+ u + ">;rel=\"next-memento\"; datetime=\""
+  					+ httpformatterl.format(f) + "\"");
+  		}
+
+  	}
+
+  	String origlink = ", <" + u + ">;rel=\"original\"";
+
+  	response.setHeader("Link", "<" + agguri + ">;rel=\"timebundle\""
+  			+ origlink + sb.toString() + timemap);
+%>
\ No newline at end of file


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