/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.app.xmlui.aspect.discovery;
import java.io.IOException;
import java.io.Serializable;
import java.sql.SQLException;
import org.apache.cocoon.caching.CacheableProcessingComponent;
import org.apache.cocoon.environment.ObjectModelHelper;
import org.apache.cocoon.environment.Request;
import org.apache.cocoon.util.HashUtil;
import org.apache.excalibur.source.SourceValidity;
import org.apache.excalibur.source.impl.validity.NOPValidity;
import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
import org.dspace.app.xmlui.utils.HandleUtil;
import org.dspace.app.xmlui.utils.UIException;
import org.dspace.app.xmlui.wing.WingException;
import org.dspace.app.xmlui.wing.element.Options;
import org.dspace.app.xmlui.wing.element.PageMeta;
import org.dspace.authorize.AuthorizeException;
import org.dspace.content.DSpaceObject;
import org.xml.sax.SAXException;
/**
* Navigation that adds code needed for discovery search
*
* @author Kevin Van de Velde (kevin at atmire dot com)
* @author Mark Diggory (markd at atmire dot com)
* @author Ben Bosman (ben at atmire dot com)
*/
public class Navigation extends AbstractDSpaceTransformer implements CacheableProcessingComponent
{
/**
* Generate the unique caching key.
* This key must be unique inside the space of this component.
*/
public Serializable getKey() {
try {
Request request = ObjectModelHelper.getRequest(objectModel);
String key = request.getScheme() + request.getServerName() + request.getServerPort() + request.getSitemapURI() + request.getQueryString();
DSpaceObject dso = HandleUtil.obtainHandle(objectModel);
if (dso != null)
{
key += "-" + dso.getHandle();
}
return HashUtil.hash(key);
}
catch (SQLException sqle)
{
// Ignore all errors and just return that the component is not cachable.
return "0";
}
}
/**
* Generate the cache validity object.
*
* The cache is always valid.
*/
public SourceValidity getValidity() {
return NOPValidity.SHARED_INSTANCE;
}
/**
* Add the basic navigational options:
*
* Search - advanced search
*
* browse - browse by Titles - browse by Authors - browse by Dates
*
* language FIXME: add languages
*
* context no context options are added.
*
* action no action options are added.
*/
public void addOptions(Options options) throws SAXException, WingException,
UIException, SQLException, IOException, AuthorizeException
{
// DSpaceObject dso = HandleUtil.obtainHandle(objectModel);
// List test = options.addList("browse");
// List discovery = options.addList("discovery-search");
// discovery.setHead("Discovery");
//
// discovery.addItem().addXref(contextPath + "/discover" , "Discover");
/*
List browse = options.addList("browse");
browse.setHead(T_head_browse);
List browseGlobal = browse.addList("global");
List browseContext = browse.addList("context");
browseGlobal.setHead(T_head_all_of_dspace);
if (dso != null)
{
if (dso instanceof Collection)
{
browseContext.addItem().addXref(contextPath + "/discovery/?q=search.resourcetype%3A2+AND+location%3Al" + dso.getID(), T_head_this_collection );
}
if (dso instanceof Community)
{
browseContext.addItem().addXref(contextPath + "/discovery/?q=search.resourcetype%3A2+AND+location%3Am" + dso.getID(), T_head_this_community );
}
}
browseGlobal.addItem().addXref(contextPath + "/community-list", T_head_all_of_dspace );
*/
/* regulate the ordering */
options.addList("discovery");
options.addList("browse");
options.addList("account");
options.addList("context");
options.addList("administrative");
}
/**
* Ensure that the context path is added to the page meta.
*/
public void addPageMeta(PageMeta pageMeta) throws SAXException,
WingException, UIException, SQLException, IOException,
AuthorizeException
{
// Add metadata for quick searches:
pageMeta.addMetadata("search", "simpleURL").addContent(
"/discover");
pageMeta.addMetadata("search", "advancedURL").addContent(
contextPath + "/discover");
pageMeta.addMetadata("search", "queryField").addContent("query");
}
}