Package org.apache.beehive.netui.tags.divpanel

Source Code of org.apache.beehive.netui.tags.divpanel.DivPanelCRI

/*
* Copyright 2005 The Apache Software Foundation.
*
* 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.
*
* $Header:$
*/
package org.apache.beehive.netui.tags.divpanel;

import org.apache.beehive.netui.pageflow.interceptor.InterceptorChain;
import org.apache.beehive.netui.pageflow.interceptor.InterceptorException;
import org.apache.beehive.netui.pageflow.interceptor.request.RequestInterceptorContext;
import org.apache.beehive.netui.pageflow.requeststate.INameable;
import org.apache.beehive.netui.pageflow.requeststate.NameService;
import org.apache.beehive.netui.tags.AbstractClientRequestInterceptor;

import javax.servlet.http.HttpServletRequest;

public class DivPanelCRI extends AbstractClientRequestInterceptor
{
    private static final String SWITCH_PAGE = "switchPage";

    public void preRequest(RequestInterceptorContext ctxt, InterceptorChain chain)
    {
        HttpServletRequest request = ctxt.getRequest();

        // Create the command by striping off the context path and the extension
        String uri = request.getRequestURI();
        String ctxtPath = request.getContextPath();

        String cmd = getCommand(uri, ctxtPath);


        // check to see if we handle this command
        if (SWITCH_PAGE.equals(cmd)) {
            handlePageSwitch(request);
        }

    }

    private void handlePageSwitch(HttpServletRequest req)
    {
        String dp = req.getParameter("divPanel");
        String fp = req.getParameter("firstPage");
        //System.err.println("DivPanel Command: switch, DivPanel:" + dp + " Node:" + fp);

        NameService ns = NameService.instance(req.getSession());
        assert(ns != null);

        // get the tree from the name service
        INameable n = ns.get(dp);
        if (n == null) {
            System.err.println("DivPanel '" + dp + "' was not found in the NameService");
            return;
        }
        if (!(n instanceof DivPanelState)) {
            System.err.println("Named dp was not an instance of a DivPanelState");
            return;
        }

        DivPanelState state = (DivPanelState) n;
        state.setFirstPage(fp);
    }

    public void postRequest(RequestInterceptorContext context, InterceptorChain chain) throws InterceptorException
    {
        chain.continueChain();
    }
}
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