src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/LeafBeanInfoImpl.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;
27
28 import java.io.IOException;
29
30 import javax.xml.bind.ValidationEvent;
31 import javax.xml.bind.helpers.ValidationEventImpl;
32 import javax.xml.namespace.QName;
33 import javax.xml.stream.XMLStreamException;
34
35 import com.sun.xml.internal.bind.api.AccessorException;
36 import com.sun.xml.internal.bind.v2.model.runtime.RuntimeLeafInfo;
37 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader;
38 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.TextLoader;
39 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext;
40 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.XsiTypeLoader;
41
42 import org.xml.sax.SAXException;
43
44 /**
45 * {@link JaxBeanInfo} implementation for immutable leaf classes.
46 *
47 * <p>
48 * Leaf classes are always bound to a text and they are often immutable.
49 * The JAXB spec allows this binding for a few special Java classes plus
50 * type-safe enums.
51 *
52 * <p>
53 * This implementation obtains necessary information from {@link RuntimeLeafInfo}.
54 *
55 * @author Kohsuke Kawaguchi
56 */
57 final class LeafBeanInfoImpl<BeanT> extends JaxBeanInfo<BeanT> {
58
59 private final Loader loader;
60 private final Loader loaderWithSubst;
61
62 private final Transducer<BeanT> xducer;
63
64 /**
65 * Non-null only if the leaf is also an element.
66 */
67 private final Name tagName;
68
69 public LeafBeanInfoImpl(JAXBContextImpl grammar, RuntimeLeafInfo li) {
70 super(grammar,li,li.getClazz(),li.getTypeNames(),li.isElement(),true,false);
71
72 xducer = li.getTransducer();
73 loader = new TextLoader(xducer);
74 loaderWithSubst = new XsiTypeLoader(this);
75
76 if(isElement())
77 tagName = grammar.nameBuilder.createElementName(li.getElementName());
78 else
79 tagName = null;
80 }
81
82 public QName getTypeName(BeanT instance) {
83 QName tn = xducer.getTypeName(instance);
84 if(tn!=null) return tn;
85 // rely on default
86 return super.getTypeName(instance);
87 }
88
89 public final String getElementNamespaceURI(BeanT _) {
90 return tagName.nsUri;
91 }
92
93 public final String getElementLocalName(BeanT _) {
94 return tagName.localName;
95 }
96
97 public BeanT createInstance(UnmarshallingContext context) {
98 throw new UnsupportedOperationException();
99 }
100
101 public final boolean reset(BeanT bean, UnmarshallingContext context) {
102 return false;
103 }
104
105 public final String getId(BeanT bean, XMLSerializer target) {
106 return null;
107 }
108
109 public final void serializeBody(BeanT bean, XMLSerializer w) throws SAXException, IOException, XMLStreamException {
110 // most of the times leaves are printed as leaf element/attribute property,
111 // so this code is only used for example when you have multiple XmlElement on a property
112 // and some of them are leaves. Hence this doesn't need to be super-fast.
113 try {
114 xducer.writeText(w,bean,null);
115 } catch (AccessorException e) {
116 w.reportError(null,e);
117 }
118 }
119
120 public final void serializeAttributes(BeanT bean, XMLSerializer target) {
121 // noop
122 }
123
124 public final void serializeRoot(BeanT bean, XMLSerializer target) throws SAXException, IOException, XMLStreamException {
125 if(tagName==null) {
126 target.reportError(
127 new ValidationEventImpl(
128 ValidationEvent.ERROR,
129 Messages.UNABLE_TO_MARSHAL_NON_ELEMENT.format(bean.getClass().getName()),
130 null,
131 null));
132 }
133 else {
134 target.startElement(tagName,bean);
135 target.childAsSoleContent(bean,null);
136 target.endElement();
137 }
138 }
139
140 public final void serializeURIs(BeanT bean, XMLSerializer target) throws SAXException {
141 // TODO: maybe we should create another LeafBeanInfoImpl class for
142 // context-dependent xducers?
143 if(xducer.useNamespace()) {
144 try {
145 xducer.declareNamespace(bean,target);
146 } catch (AccessorException e) {
147 target.reportError(null,e);
148 }
149 }
150 }
151
152 public final Loader getLoader(JAXBContextImpl context, boolean typeSubstitutionCapable) {
153 if(typeSubstitutionCapable)
154 return loaderWithSubst;
155 else
156 return loader;
157 }
158
159 public Transducer<BeanT> getTransducer() {
160 return xducer;
161 }
162 }

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