/*
 * $Id: PerformInclude.java 471754 2006-11-06 14:55:09Z husted $
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.struts.chain.commands.servlet;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;

import org.apache.commons.logging.LogFactory;
import org.apache.struts.chain.commands.AbstractPerformInclude;
import org.apache.struts.chain.contexts.ActionContext;
import org.apache.struts.chain.contexts.ServletActionContext;
import org.apache.struts.util.RequestUtils;

/**
 * <p>Perform forwarding or redirection based on the specified include uri (if
 * any).</p>
 *
 * @version $Rev: 471754 $ $Date: 2005-11-09 00:11:45 -0500 (Wed, 09 Nov 2005)
 *          $
 */
public class PerformInclude extends AbstractPerformInclude {

    // ------------------------------------------------------- Protected Methods

    /**
     * <p>Perform the appropriate processing on the specified include
     * uri.</p>
     * @param context The context for this request
     * @param uri     The uri to be included
     */
    @Override
    protected void perform(final ActionContext<String, Object> context, final String uri) {

        ServletActionContext swcontext = (ServletActionContext) context;
        HttpServletRequest request = swcontext.getRequest();

        RequestDispatcher rd = swcontext.getContext().getRequestDispatcher(uri);
        try {
            rd.include(request, swcontext.getResponse());
        } catch (final IOException e) {
            LogFactory.getLog(PerformInclude.class).warn(e.getMessage());
        } catch (final ServletException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * @see org.apache.struts.chain.commands.AbstractPerformInclude
     * #includePath(org.apache.struts.chain.contexts.ActionContext, java.lang.String)
     */
    @Override
    protected String includePath(final ActionContext<String, Object> actionContext,
            final String include) {
        ServletActionContext swcontext = (ServletActionContext) actionContext;
        String actionIdPath = RequestUtils.actionIdURL(include,
                swcontext.getModuleConfig(), swcontext.getActionServlet());
        if (actionIdPath != null) {
            return super.includePath(actionContext, actionIdPath);
        }
        return super.includePath(actionContext, include);
    }
}
