src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/property/SingleReferenceNodeProperty.java

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1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.xml.internal.bind.v2.runtime.property;
27
28 import java.io.IOException;
29 import java.lang.reflect.InvocationTargetException;
30
31 import javax.xml.bind.JAXBElement;
32 import javax.xml.bind.JAXBException;
33 import javax.xml.bind.annotation.DomHandler;
34 import javax.xml.stream.XMLStreamException;
35
36 import com.sun.xml.internal.bind.api.AccessorException;
37 import com.sun.xml.internal.bind.v2.ClassFactory;
38 import com.sun.xml.internal.bind.v2.model.core.PropertyKind;
39 import com.sun.xml.internal.bind.v2.model.core.WildcardMode;
40 import com.sun.xml.internal.bind.v2.model.runtime.RuntimeElement;
41 import com.sun.xml.internal.bind.v2.model.runtime.RuntimeReferencePropertyInfo;
42 import com.sun.xml.internal.bind.v2.runtime.ElementBeanInfoImpl;
43 import com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl;
44 import com.sun.xml.internal.bind.v2.runtime.JaxBeanInfo;
45 import com.sun.xml.internal.bind.v2.runtime.XMLSerializer;
46 import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor;
47 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.ChildLoader;
48 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.WildcardLoader;
49 import com.sun.xml.internal.bind.v2.util.QNameMap;
50
51 import org.xml.sax.SAXException;
52
53 /**
54 * @author Kohsuke Kawaguchi
55 */
56 final class SingleReferenceNodeProperty<BeanT,ValueT> extends PropertyImpl<BeanT> {
57
58 private final Accessor<BeanT,ValueT> acc;
59
60 private final QNameMap<JaxBeanInfo> expectedElements = new QNameMap<JaxBeanInfo>();
61
62 private final DomHandler domHandler;
63 private final WildcardMode wcMode;
64
65 public SingleReferenceNodeProperty(JAXBContextImpl context, RuntimeReferencePropertyInfo prop) {
66 super(context,prop);
67 acc = prop.getAccessor().optimize(context);
68
69 for (RuntimeElement e : prop.getElements()) {
70 expectedElements.put( e.getElementName(), context.getOrCreate(e) );
71 }
72
73 if(prop.getWildcard()!=null) {
74 domHandler = (DomHandler) ClassFactory.create(prop.getDOMHandler());
75 wcMode = prop.getWildcard();
76 } else {
77 domHandler = null;
78 wcMode = null;
79 }
80 }
81
82 public void reset(BeanT bean) throws AccessorException {
83 acc.set(bean,null);
84 }
85
86 public String getIdValue(BeanT beanT) {
87 return null;
88 }
89
90 public void serializeBody(BeanT o, XMLSerializer w, Object outerPeer) throws SAXException, AccessorException, IOException, XMLStreamException {
91 ValueT v = acc.get(o);
92 if(v!=null) {
93 try {
94 JaxBeanInfo bi = w.grammar.getBeanInfo(v,true);
95 if(bi.jaxbType==Object.class && domHandler!=null)
96 // even if 'v' is a DOM node, it always derive from Object,
97 // so the getBeanInfo returns BeanInfo for Object
98 w.writeDom(v,domHandler,o,fieldName);
99 else
100 bi.serializeRoot(v,w);
101 } catch (JAXBException e) {
102 w.reportError(fieldName,e);
103 // recover by ignoring this property
104 }
105 }
106 }
107
108 public void buildChildElementUnmarshallers(UnmarshallerChain chain, QNameMap<ChildLoader> handlers) {
109 for (QNameMap.Entry<JaxBeanInfo> n : expectedElements.entrySet())
110 handlers.put(n.nsUri,n.localName, new ChildLoader(n.getValue().getLoader(chain.context,true),acc));
111
112 if(domHandler!=null)
113 handlers.put(CATCH_ALL,new ChildLoader(new WildcardLoader(domHandler,wcMode),acc));
114
115 }
116
117 public PropertyKind getKind() {
118 return PropertyKind.REFERENCE;
119 }
120
121 @Override
122 public Accessor getElementPropertyAccessor(String nsUri, String localName) {
123 JaxBeanInfo bi = expectedElements.get(nsUri, localName);
124 if(bi!=null) {
125 if(bi instanceof ElementBeanInfoImpl) {
126 final ElementBeanInfoImpl ebi = (ElementBeanInfoImpl) bi;
127 // a JAXBElement. We need to handle JAXBElement for JAX-WS
128 return new Accessor<BeanT,Object>(ebi.expectedType) {
129 public Object get(BeanT bean) throws AccessorException {
130 ValueT r = acc.get(bean);
131 if(r instanceof JAXBElement) {
132 return ((JAXBElement)r).getValue();
133 } else
134 // this is sloppy programming, but hey...
135 return r;
136 }
137
138 public void set(BeanT bean, Object value) throws AccessorException {
139 if(value!=null) {
140 try {
141 value = ebi.createInstanceFromValue(value);
142 } catch (IllegalAccessException e) {
143 throw new AccessorException(e);
144 } catch (InvocationTargetException e) {
145 throw new AccessorException(e);
146 } catch (InstantiationException e) {
147 throw new AccessorException(e);
148 }
149 }
150 acc.set(bean,(ValueT)value);
151 }
152 };
153 } else {
154 // a custom element type, like @XmlRootElement class Foo { ... }
155 return acc;
156 }
157 } else
158 return null;
159 }
160 }

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