111 lines
3.7 KiB
Java
111 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.internal;
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import org.apache.beehive.netui.pageflow.config.PageFlowActionMapping;
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import org.apache.beehive.netui.util.logging.Logger;
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import org.apache.struts.action.ActionMapping;
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import javax.servlet.http.HttpServletRequest;
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import java.lang.reflect.Method;
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import java.lang.reflect.InvocationTargetException;
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public class XmlBeanActionForm extends AnyBeanActionForm
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{
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private static final Logger _log = Logger.getInstance( XmlBeanActionForm.class );
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private String _formClassName;
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public XmlBeanActionForm()
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{
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}
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public XmlBeanActionForm( Object xml )
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{
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setBean( xml );
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}
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public String getXmlString()
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{
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Object xmlBean = getBean();
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if ( xmlBean == null) return null;
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try
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{
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return ( String ) xmlBean.getClass().getMethod( "xmlText", null ).invoke( xmlBean, null );
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}
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catch ( InvocationTargetException e )
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{
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_log.error( "Error while getting XML String", e.getCause() );
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}
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catch ( Exception e )
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{
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assert e instanceof NoSuchMethodException || e instanceof IllegalAccessException : e.getClass().getName();
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_log.error( "Error while getting XML String", e );
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}
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return null;
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}
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public void setXmlString( String xml )
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{
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assert _formClassName != null;
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setBean( invokeFactoryMethod( "parse", new Class[]{ String.class }, new Object[]{ xml } ) );
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}
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public void reset( ActionMapping mapping, HttpServletRequest request )
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{
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if ( _formClassName == null )
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{
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assert mapping instanceof PageFlowActionMapping : mapping.getClass().getName();
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_formClassName = ( ( PageFlowActionMapping ) mapping ).getFormClass();
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assert _formClassName != null;
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}
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if ( getBean() == null )
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{
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setBean( invokeFactoryMethod( "newInstance", new Class[0], new Object[0] ) );
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}
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}
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private Object invokeFactoryMethod( String methodName, Class[] argTypes, Object[] args )
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{
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String factoryClassName = _formClassName + "$Factory";
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try
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{
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Class factoryClass = Class.forName( factoryClassName );
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Method newInstanceMethod = factoryClass.getMethod( methodName, argTypes );
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return newInstanceMethod.invoke( factoryClass, args );
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}
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catch ( Exception e )
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{
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// Can be any exception -- not just the reflection-related exceptions...
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// because the exception could be thrown while creating the XML bean.
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if ( _log.isErrorEnabled() )
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{
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_log.error( "Error while creating XML object of type " + _formClassName, e );
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}
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return null;
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}
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}
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}
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