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1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package com.sun.xml.internal.ws.spi.db; |
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27 |
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28 import java.util.HashSet; |
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29 import java.util.Iterator; |
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30 import java.util.Collection; |
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31 import java.util.List; |
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32 import java.util.Set; |
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33 import java.io.InputStream; |
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34 import java.io.OutputStream; |
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35 import java.util.NoSuchElementException; |
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36 |
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37 import javax.xml.bind.JAXBException; |
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38 import javax.xml.bind.attachment.AttachmentMarshaller; |
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39 import javax.xml.bind.attachment.AttachmentUnmarshaller; |
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40 import javax.xml.namespace.NamespaceContext; |
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41 import javax.xml.stream.XMLStreamReader; |
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42 import javax.xml.stream.XMLStreamWriter; |
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43 import javax.xml.transform.Result; |
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44 import javax.xml.transform.Source; |
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45 |
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46 import org.w3c.dom.Node; |
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47 import org.xml.sax.ContentHandler; |
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48 |
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49 /** |
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50 * RepeatedElementBridge |
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51 * |
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52 * @author shih-chang.chen@oracle.com |
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53 */ |
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54 @SuppressWarnings({"rawtypes", "unchecked"}) |
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55 public class RepeatedElementBridge<T> implements XMLBridge<T> { |
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56 |
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57 XMLBridge<T> delegate; |
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58 CollectionHandler collectionHandler; |
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59 |
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60 public RepeatedElementBridge(TypeInfo typeInfo, XMLBridge xb) { |
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61 delegate = xb; |
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62 collectionHandler = create(typeInfo); |
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63 } |
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64 |
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65 public CollectionHandler collectionHandler() { |
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66 return collectionHandler; |
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67 } |
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68 |
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69 @Override |
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70 public BindingContext context() { |
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71 return delegate.context(); |
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72 } |
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73 |
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74 @Override |
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75 public void marshal(T object, XMLStreamWriter output, AttachmentMarshaller am) throws JAXBException { |
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76 delegate.marshal(object, output, am); |
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77 } |
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78 |
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79 @Override |
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80 public void marshal(T object, OutputStream output, NamespaceContext nsContext, AttachmentMarshaller am) throws JAXBException { |
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81 delegate.marshal(object, output, nsContext, am); |
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82 } |
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83 |
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84 @Override |
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85 public void marshal(T object, Node output) throws JAXBException { |
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86 delegate.marshal(object, output); |
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87 } |
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88 |
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89 @Override |
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90 public void marshal(T object, ContentHandler contentHandler, AttachmentMarshaller am) throws JAXBException { |
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91 delegate.marshal(object, contentHandler, am); |
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92 } |
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93 |
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94 @Override |
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95 public void marshal(T object, Result result) throws JAXBException { |
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96 delegate.marshal(object, result); |
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97 } |
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98 |
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99 @Override |
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100 public T unmarshal(XMLStreamReader in, AttachmentUnmarshaller au) throws JAXBException { |
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101 return delegate.unmarshal(in, au); |
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102 } |
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103 |
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104 @Override |
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105 public T unmarshal(Source in, AttachmentUnmarshaller au) throws JAXBException { |
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106 return delegate.unmarshal(in, au); |
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107 } |
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108 |
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109 @Override |
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110 public T unmarshal(InputStream in) throws JAXBException { |
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111 return delegate.unmarshal(in); |
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112 } |
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113 |
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114 @Override |
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115 public T unmarshal(Node n, AttachmentUnmarshaller au) throws JAXBException { |
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116 return delegate.unmarshal(n, au); |
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117 } |
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118 |
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119 @Override |
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120 public TypeInfo getTypeInfo() { |
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121 return delegate.getTypeInfo(); |
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122 } |
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123 |
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124 @Override |
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125 public boolean supportOutputStream() { |
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126 return delegate.supportOutputStream(); |
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127 } |
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128 |
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129 static public interface CollectionHandler { |
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130 int getSize(Object c); |
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131 Iterator iterator(Object c); |
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132 Object convert(List list); |
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133 } |
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134 |
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135 static class BaseCollectionHandler implements CollectionHandler { |
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136 Class type; |
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137 BaseCollectionHandler(Class c) {type = c;} |
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138 @Override |
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139 public int getSize(Object c) { return ((Collection) c).size(); } |
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140 @Override |
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141 public Object convert(List list) { |
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142 try { |
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143 Object o = type.newInstance(); |
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144 ((Collection)o).addAll(list); |
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145 return o; |
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146 } catch (Exception e) { |
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147 e.printStackTrace(); |
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148 } |
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149 return list; |
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150 } |
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151 @Override |
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152 public Iterator iterator(Object c) {return ((Collection)c).iterator();} |
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153 } |
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154 |
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155 static final CollectionHandler ListHandler = new BaseCollectionHandler(List.class) { |
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156 @Override |
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157 public Object convert(List list) {return list;} |
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158 }; |
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159 |
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160 static final CollectionHandler HashSetHandler = new BaseCollectionHandler(HashSet.class) { |
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161 @Override |
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162 public Object convert(List list) { return new HashSet(list);} |
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163 }; |
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164 |
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165 static public CollectionHandler create(TypeInfo ti) { |
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166 Class javaClass = (Class) ti.type; |
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167 if (javaClass.isArray()) { |
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168 return new ArrayHandler((Class) ti.getItemType().type); |
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169 } else if (List.class.equals(javaClass) || Collection.class.equals(javaClass)) { |
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170 return ListHandler; |
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171 } else if (Set.class.equals(javaClass) || HashSet.class.equals(javaClass)) { |
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172 return HashSetHandler; |
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173 } else { |
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174 return new BaseCollectionHandler(javaClass); |
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175 } |
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176 } |
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177 |
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178 static class ArrayHandler implements CollectionHandler { |
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179 Class componentClass; |
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180 public ArrayHandler(Class component) { |
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181 componentClass = component; |
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182 } |
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183 @Override |
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184 public int getSize(Object c) { |
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185 return java.lang.reflect.Array.getLength(c); |
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186 } |
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187 @Override |
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188 public Object convert(List list) { |
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189 Object array = java.lang.reflect.Array.newInstance(componentClass, list.size()); |
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190 for (int i = 0; i < list.size(); i++) { |
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191 java.lang.reflect.Array.set(array, i, list.get(i)); |
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192 } |
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193 return array; |
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194 } |
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195 @Override |
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196 public Iterator iterator(final Object c) { |
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197 return new Iterator() { |
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198 int index = 0; |
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199 @Override |
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200 public boolean hasNext() { |
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201 if (c == null || java.lang.reflect.Array.getLength(c) == 0) { |
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202 return false; |
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203 } |
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204 return (index != java.lang.reflect.Array.getLength(c)); |
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205 } |
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206 @Override |
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207 public Object next() throws NoSuchElementException { |
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208 Object retVal = null; |
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209 try { |
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210 retVal = java.lang.reflect.Array.get(c, index++); |
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211 } catch (ArrayIndexOutOfBoundsException ex) { |
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212 throw new NoSuchElementException(); |
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213 } |
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214 return retVal; |
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215 } |
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216 @Override |
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217 public void remove() {} |
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218 }; |
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219 } |
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220 } |
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221 } |