/* | |
* Copyright 2003,2004 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. | |
*/ | |
package org.apache.pluto.internal.impl; | |
import org.apache.pluto.internal.InternalPortletRequest; | |
import org.apache.pluto.internal.InternalPortletResponse; | |
import org.apache.pluto.wrappers.PortletRequestWrapper; | |
import org.apache.pluto.wrappers.PortletResponseWrapper; | |
import javax.portlet.PortletRequest; | |
import javax.portlet.PortletResponse; | |
/** | |
* Static class that provides utility methods to convert a generic | |
* PortletRequest or PortletResponse object into an Internal respresentation | |
* of the same object. | |
* @author <a href="mailto:zheng@apache.org">ZHENG Zhong</a> | |
* @author <a href="mailto:ddewolf@apache.org">David H. DeWolf</a> | |
*/ | |
class InternalImplConverter { | |
/** | |
* Private constructor that prevents external instantiation. | |
*/ | |
private InternalImplConverter() { | |
// Do nothing. | |
} | |
// Public Static Utility Methods ------------------------------------------- | |
/** | |
* The scary part about this is that there is not yet a | |
* PortletRequestWrapper defined by the spec. Because of this, there's a | |
* chance someone might implement their own wrapper and we won't be able to | |
* get the real internal one! | |
* @param request the portlet request to be converted. | |
* @return the internal request. | |
*/ | |
public static InternalPortletRequest getInternalRequest( | |
PortletRequest request) { | |
while (!(request instanceof InternalPortletRequest)) { | |
request = ((PortletRequestWrapper) request).getPortletRequest(); | |
if (request == null) { | |
throw new IllegalStateException( | |
"The internal portlet request cannot be found."); | |
} | |
} | |
return (InternalPortletRequest) request; | |
} | |
/** | |
* The scary part about this is that there is not yet a | |
* PortletRequestWrapper defined by the spec. Because of this, there's a | |
* chance someone might implement their own wrapper and we won't be able to | |
* get the real internal one! | |
* @param response the portlet response to be converted. | |
* @return the internal response. | |
*/ | |
public static InternalPortletResponse getInternalResponse( | |
PortletResponse response) { | |
while (!(response instanceof InternalPortletResponse)) { | |
response = ((PortletResponseWrapper) response).getPortletResponse(); | |
if (response == null) { | |
throw new IllegalStateException( | |
"The internal portlet response cannot be found."); | |
} | |
} | |
return (InternalPortletResponse) response; | |
} | |
} |