86 lines
3.7 KiB
Java
86 lines
3.7 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* $Header:$
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*/
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package org.apache.beehive.netui.pageflow;
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import org.apache.beehive.netui.pageflow.handler.StorageHandler;
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import org.apache.beehive.netui.pageflow.handler.Handlers;
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import org.apache.beehive.netui.pageflow.scoping.ScopedServletUtils;
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import org.apache.beehive.netui.pageflow.internal.InternalConstants;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.ServletContext;
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public class PageFlowControlContainerFactory
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{
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private static String PAGEFLOW_CONTROL_CONTAINER = InternalConstants.ATTR_PREFIX + "PageFlowControlContainerInstance";
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/**
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* This method will return the <code>PageFlowControlContainer</code> that is acting as the
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* control container for the page flow runtime.
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* @param request The current request
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* @param servletContext The servlet context
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* @return The <code>pageFLowControlContainer</code> acting as the control container.
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*/
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public static synchronized PageFlowControlContainer getControlContainer(HttpServletRequest request, ServletContext servletContext)
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{
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PageFlowControlContainer pfcc = (PageFlowControlContainer) getSessionVar(request, servletContext, PAGEFLOW_CONTROL_CONTAINER);
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if (pfcc != null)
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return pfcc;
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pfcc = new PageFlowControlContainerImpl();
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setSessionVar(request,servletContext,PAGEFLOW_CONTROL_CONTAINER,pfcc);
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return pfcc;
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}
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/**
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* This is a generic routine that will retrieve a value from the Session through the
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* StorageHandler.
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* @param request
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* @param servletContext
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* @param name The name of the value to be retrieved
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* @return The requested value from the session
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*/
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private static Object getSessionVar(HttpServletRequest request, ServletContext servletContext, String name)
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{
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StorageHandler sh = Handlers.get( servletContext ).getStorageHandler();
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HttpServletRequest unwrappedRequest = PageFlowUtils.unwrapMultipart( request );
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RequestContext rc = new RequestContext( unwrappedRequest, null );
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String attrName = ScopedServletUtils.getScopedSessionAttrName(name, unwrappedRequest);
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return sh.getAttribute( rc, attrName );
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}
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/**
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* This is a generic routine that will store a value into the Session through the StorageHandler.
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* @param request
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* @param servletContext
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* @param name The name of the variable to be stored
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* @param value The value of the variable to be stored
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*/
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private static void setSessionVar(HttpServletRequest request, ServletContext servletContext, String name, Object value)
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{
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StorageHandler sh = Handlers.get( servletContext ).getStorageHandler();
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HttpServletRequest unwrappedRequest = PageFlowUtils.unwrapMultipart( request );
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RequestContext rc = new RequestContext( unwrappedRequest, null );
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String attrName = ScopedServletUtils.getScopedSessionAttrName(name, unwrappedRequest);
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sh.setAttribute( rc, attrName, value );
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}
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}
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