openurlservlet.java

dspace 用j2ee架构的一个数字图书馆.开源程序

/*
 * OpenURLServlet.java
 *
 * Version: $Revision: 1.5 $
 *
 * Date: $Date: 2005/04/20 14:22:36 $
 *
 * Copyright (c) 2002-2005, Hewlett-Packard Company and Massachusetts
 * Institute of Technology.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * - Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the Hewlett-Packard Company nor the name of the
 * Massachusetts Institute of Technology nor the names of their
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */
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.authorize.AuthorizeException;
import org.dspace.core.Context;
import org.dspace.core.LogManager;

/**
 * Simple servlet for open URL support. Presently, simply extracts terms from
 * open URL and redirects to search.
 * 
 * @author Robert Tansley
 * @version $Revision: 1.5 $
 */
public class OpenURLServlet extends DSpaceServlet
{
    /** Logger */
    private static Logger log = Logger.getLogger(OpenURLServlet.class);

    protected void doDSGet(Context context, HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException,
            SQLException, AuthorizeException
    {
        String query = "";

        // Extract open URL terms. Note: assume no repetition
        String title = request.getParameter("title");
        String authorFirst = request.getParameter("aufirst");
        String authorLast = request.getParameter("aulast");

        String logInfo = "";

        if (title != null)
        {
            query = query + " " + title;
            logInfo = logInfo + "title=\"" + title + "\",";
        }

        if (authorFirst != null)
        {
            query = query + " " + authorFirst;
            logInfo = logInfo + "aufirst=\"" + authorFirst + "\",";
        }

        if (authorLast != null)
        {
            query = query + " " + authorLast;
            logInfo = logInfo + "aulast=\"" + authorLast + "\",";
        }

        log.info(LogManager.getHeader(context, "openURL", logInfo
                + "dspacequery=" + query));

        response.sendRedirect(response.encodeRedirectURL(request
                .getContextPath()
                + "/simple-search?query=" + query));
    }

    protected void doDSPost(Context context, HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException,
            SQLException, AuthorizeException
    {
        // Same as a GET
        doDSGet(context, request, response);
    }
}