/**
* 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.webui.servlet;
import java.io.IOException;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import org.dspace.app.webui.discovery.DiscoverySearchRequestProcessor;
import org.dspace.app.webui.search.LuceneSearchRequestProcessor;
import org.dspace.app.webui.search.SearchProcessorException;
import org.dspace.app.webui.search.SearchRequestProcessor;
import org.dspace.authorize.AuthorizeException;
import org.dspace.core.Context;
import org.dspace.core.PluginConfigurationError;
import org.dspace.core.PluginManager;
/**
* Servlet for producing OpenSearch-compliant search results, and the OpenSearch
* description document.
* <p>
* OpenSearch is a specification for describing and advertising search-engines
* and their result formats. Commonly, RSS and Atom formats are used, which the
* current implementation supports, as is HTML (used directly in browsers). NB:
* this is baseline OpenSearch, no extensions currently supported.
* </p>
*
*/
public class OpenSearchServlet extends DSpaceServlet
{
private static final long serialVersionUID = 1L;
private SearchRequestProcessor internalLogic;
/** log4j category */
private static Logger log = Logger.getLogger(OpenSearchServlet.class);
public void init()
{
try
{
internalLogic = (SearchRequestProcessor) PluginManager
.getSinglePlugin(SearchRequestProcessor.class);
}
catch (PluginConfigurationError e)
{
log.warn(
"OpenSearchServlet not properly configurated, please configure the SearchRequestProcessor plugin",
e);
}
if (internalLogic == null)
{ // Discovery is the default search provider since DSpace 4.0
internalLogic = new DiscoverySearchRequestProcessor();
}
}
protected void doDSGet(Context context, HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException,
SQLException, AuthorizeException
{
try
{
internalLogic.doOpenSearch(context, request, response);
}
catch (SearchProcessorException e)
{
throw new ServletException(e.getMessage(), e);
}
}
}