org.openhie.openempi.webapp.filter.MockFilterChain.java Source code

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Here is the source code for org.openhie.openempi.webapp.filter.MockFilterChain.java

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/**
 *
 * Copyright (C) 2002-2012 "SYSNET International, Inc."
 * support@sysnetint.com [http://www.sysnetint.com]
 *
 * This file is part of OpenEMPI.
 *
 * OpenEMPI is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package org.openhie.openempi.webapp.filter;

import java.io.IOException;

import javax.servlet.FilterChain;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Borrowed from the Display Tag project:
 * http://displaytag.sourceforge.net/xref-test/org/displaytag/filter/MockFilterSupport.html
 *
 * Todo: look into using Spring's MockFilterChain:
 * http://www.springframework.org/docs/api/org/springframework/mock/web/MockFilterChain.html
 */
public class MockFilterChain implements FilterChain {
    private final Log log = LogFactory.getLog(MockFilterChain.class);
    private String forwardURL;

    public void doFilter(ServletRequest request, ServletResponse response) throws IOException, ServletException {
        String uri = ((HttpServletRequest) request).getRequestURI();
        String requestContext = ((HttpServletRequest) request).getContextPath();

        if (StringUtils.isNotEmpty(requestContext) && uri.startsWith(requestContext)) {
            uri = uri.substring(requestContext.length());
        }

        this.forwardURL = uri;
        log.debug("Forwarding to: " + uri);

        RequestDispatcher dispatcher = request.getRequestDispatcher(uri);
        dispatcher.forward(request, response);
    }

    public String getForwardURL() {
        return this.forwardURL;
    }
}