StaticResourcesProductionFilter.java

/*
 *    Constellation - An open source and standard compliant SDI
 *    http://www.constellation-sdi.org
 *
 * Copyright 2014 Geomatys.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.constellation.admin.web.filter;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

/**
 * This filter is used in production, to serve static resources generated by "grunt build".
 * <p/>
 * <p>
 * It is configured to serve resources from the "dist" directory, which is the Grunt
 * destination directory.
 * </p>
 */
public class StaticResourcesProductionFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        // Nothing to initialize
    }

    @Override
    public void destroy() {
        // Nothing to destroy
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        String requestURI = httpRequest.getRequestURI();
        String newURI = "/dist" + requestURI;
        request.getRequestDispatcher(newURI).forward(request, response);
    }
}