001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 package org.apache.commons.betwixt.strategy; 019 020 import org.apache.commons.betwixt.ElementDescriptor; 021 import org.apache.commons.betwixt.io.read.ArrayBindAction; 022 import org.apache.commons.betwixt.io.read.BeanBindAction; 023 import org.apache.commons.betwixt.io.read.MappingAction; 024 import org.apache.commons.betwixt.io.read.ReadContext; 025 import org.apache.commons.betwixt.io.read.SimpleTypeBindAction; 026 import org.xml.sax.Attributes; 027 028 /** 029 * @author <a href='http://commons.apache.org/'>Apache Commons Team</a> 030 * @version $Revision: 561314 $ 031 */ 032 public class DefaultActionMappingStrategy extends ActionMappingStrategy { 033 034 /** 035 * Gets the mapping action to map the given element. 036 * @param namespace not null 037 * @param name not null 038 * @param attributes <code>Attributes</code>, not null 039 * @param context <code>ReadContext</code>, not null 040 * @return <code>MappingAction</code>, not null 041 * @throws Exception 042 */ 043 public MappingAction getMappingAction( 044 String namespace, 045 String name, 046 Attributes attributes, 047 ReadContext context) 048 throws Exception { 049 MappingAction result = MappingAction.EMPTY; 050 051 ElementDescriptor activeDescriptor = context.getCurrentDescriptor(); 052 if (activeDescriptor != null) { 053 if (activeDescriptor.isHollow()) { 054 if (isArrayDescriptor(activeDescriptor)) { 055 result = ArrayBindAction.createMappingAction(activeDescriptor); 056 } else { 057 result = BeanBindAction.INSTANCE; 058 } 059 } 060 else if (activeDescriptor.isSimple()) 061 { 062 result = SimpleTypeBindAction.INSTANCE; 063 } 064 else 065 { 066 ElementDescriptor[] descriptors 067 = activeDescriptor.getElementDescriptors(); 068 if (descriptors.length == 1) { 069 ElementDescriptor childDescriptor = descriptors[0]; 070 if (childDescriptor.isHollow() 071 && isArrayDescriptor(childDescriptor)) { 072 result = ArrayBindAction.createMappingAction(childDescriptor); 073 } 074 } 075 } 076 } 077 return result; 078 } 079 080 /** 081 * Is the give 082 * @param descriptor <code>ElementDescriptor</code>, possibly null 083 * @return true if the descriptor describes an array property, if null returns false 084 */ 085 private boolean isArrayDescriptor(ElementDescriptor descriptor) { 086 boolean result = false; 087 if (descriptor != null) { 088 Class propertyType = descriptor.getPropertyType(); 089 if (propertyType != null) { 090 result = propertyType.isArray(); 091 } 092 } 093 return result; 094 } 095 }