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

Thu, 31 Aug 2017 15:18:52 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 450
b0c2840e2513
parent 0
373ffda63c9a
child 760
e530533619ec
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package com.sun.xml.internal.bind.v2.runtime;
aoqi@0 27
aoqi@0 28 import java.io.IOException;
aoqi@0 29 import java.lang.reflect.Constructor;
aoqi@0 30 import java.lang.reflect.InvocationTargetException;
aoqi@0 31
aoqi@0 32 import javax.xml.bind.JAXBElement;
aoqi@0 33 import javax.xml.bind.JAXBException;
aoqi@0 34 import javax.xml.namespace.QName;
aoqi@0 35 import javax.xml.stream.XMLStreamException;
aoqi@0 36
aoqi@0 37 import com.sun.xml.internal.bind.api.AccessorException;
aoqi@0 38 import com.sun.xml.internal.bind.v2.model.core.PropertyKind;
aoqi@0 39 import com.sun.xml.internal.bind.v2.model.runtime.RuntimeElementInfo;
aoqi@0 40 import com.sun.xml.internal.bind.v2.model.runtime.RuntimePropertyInfo;
aoqi@0 41 import com.sun.xml.internal.bind.v2.runtime.property.Property;
aoqi@0 42 import com.sun.xml.internal.bind.v2.runtime.property.PropertyFactory;
aoqi@0 43 import com.sun.xml.internal.bind.v2.runtime.property.UnmarshallerChain;
aoqi@0 44 import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor;
aoqi@0 45 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.ChildLoader;
aoqi@0 46 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Discarder;
aoqi@0 47 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Intercepter;
aoqi@0 48 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader;
aoqi@0 49 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.TagName;
aoqi@0 50 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext;
aoqi@0 51 import com.sun.xml.internal.bind.v2.util.QNameMap;
aoqi@0 52
aoqi@0 53 import org.xml.sax.SAXException;
aoqi@0 54
aoqi@0 55 /**
aoqi@0 56 * {@link JaxBeanInfo} implementation for {@link RuntimeElementInfo}.
aoqi@0 57 *
aoqi@0 58 * @author Kohsuke Kawaguchi
aoqi@0 59 */
aoqi@0 60 public final class ElementBeanInfoImpl extends JaxBeanInfo<JAXBElement> {
aoqi@0 61
aoqi@0 62 private Loader loader;
aoqi@0 63
aoqi@0 64 private final Property property;
aoqi@0 65
aoqi@0 66 // used to create new instances of JAXBElement.
aoqi@0 67 private final QName tagName;
aoqi@0 68 public final Class expectedType;
aoqi@0 69 private final Class scope;
aoqi@0 70
aoqi@0 71 /**
aoqi@0 72 * If non-null, use this to create an instance.
aoqi@0 73 * It takes one value.
aoqi@0 74 */
aoqi@0 75 private final Constructor<? extends JAXBElement> constructor;
aoqi@0 76
aoqi@0 77 ElementBeanInfoImpl(JAXBContextImpl grammar, RuntimeElementInfo rei) {
aoqi@0 78 super(grammar,rei,(Class<JAXBElement>)rei.getType(),true,false,true);
aoqi@0 79
aoqi@0 80 this.property = PropertyFactory.create(grammar,rei.getProperty());
aoqi@0 81
aoqi@0 82 tagName = rei.getElementName();
aoqi@0 83 expectedType = (Class) Utils.REFLECTION_NAVIGATOR.erasure(rei.getContentInMemoryType());
aoqi@0 84 scope = rei.getScope()==null ? JAXBElement.GlobalScope.class : rei.getScope().getClazz();
aoqi@0 85
aoqi@0 86 Class type = (Class) Utils.REFLECTION_NAVIGATOR.erasure(rei.getType());
aoqi@0 87 if(type==JAXBElement.class)
aoqi@0 88 constructor = null;
aoqi@0 89 else {
aoqi@0 90 try {
aoqi@0 91 constructor = type.getConstructor(expectedType);
aoqi@0 92 } catch (NoSuchMethodException e) {
aoqi@0 93 NoSuchMethodError x = new NoSuchMethodError("Failed to find the constructor for " + type + " with " + expectedType);
aoqi@0 94 x.initCause(e);
aoqi@0 95 throw x;
aoqi@0 96 }
aoqi@0 97 }
aoqi@0 98 }
aoqi@0 99
aoqi@0 100 /**
aoqi@0 101 * The constructor for the sole instanceof {@link JaxBeanInfo} for
aoqi@0 102 * handling user-created {@link JAXBElement}.
aoqi@0 103 *
aoqi@0 104 * Such {@link JaxBeanInfo} is used only for marshalling.
aoqi@0 105 *
aoqi@0 106 * This is a hack.
aoqi@0 107 */
aoqi@0 108 protected ElementBeanInfoImpl(final JAXBContextImpl grammar) {
aoqi@0 109 super(grammar,null,JAXBElement.class,true,false,true);
aoqi@0 110 tagName = null;
aoqi@0 111 expectedType = null;
aoqi@0 112 scope = null;
aoqi@0 113 constructor = null;
aoqi@0 114
aoqi@0 115 this.property = new Property<JAXBElement>() {
aoqi@0 116 public void reset(JAXBElement o) {
aoqi@0 117 throw new UnsupportedOperationException();
aoqi@0 118 }
aoqi@0 119
aoqi@0 120 public void serializeBody(JAXBElement e, XMLSerializer target, Object outerPeer) throws SAXException, IOException, XMLStreamException {
aoqi@0 121 Class scope = e.getScope();
aoqi@0 122 if(e.isGlobalScope()) scope = null;
aoqi@0 123 QName n = e.getName();
aoqi@0 124 ElementBeanInfoImpl bi = grammar.getElement(scope,n);
aoqi@0 125 if(bi==null) {
aoqi@0 126 // infer what to do from the type
aoqi@0 127 JaxBeanInfo tbi;
aoqi@0 128 try {
aoqi@0 129 tbi = grammar.getBeanInfo(e.getDeclaredType(),true);
aoqi@0 130 } catch (JAXBException x) {
aoqi@0 131 // if e.getDeclaredType() isn't known to this JAXBContext
aoqi@0 132 target.reportError(null,x);
aoqi@0 133 return;
aoqi@0 134 }
aoqi@0 135 Object value = e.getValue();
aoqi@0 136 target.startElement(n.getNamespaceURI(),n.getLocalPart(),n.getPrefix(),null);
aoqi@0 137 if(value==null) {
aoqi@0 138 target.writeXsiNilTrue();
aoqi@0 139 } else {
aoqi@0 140 target.childAsXsiType(value,"value",tbi, false);
aoqi@0 141 }
aoqi@0 142 target.endElement();
aoqi@0 143 } else {
aoqi@0 144 try {
aoqi@0 145 bi.property.serializeBody(e,target,e);
aoqi@0 146 } catch (AccessorException x) {
aoqi@0 147 target.reportError(null,x);
aoqi@0 148 }
aoqi@0 149 }
aoqi@0 150 }
aoqi@0 151
aoqi@0 152 public void serializeURIs(JAXBElement o, XMLSerializer target) {
aoqi@0 153 }
aoqi@0 154
aoqi@0 155 public boolean hasSerializeURIAction() {
aoqi@0 156 return false;
aoqi@0 157 }
aoqi@0 158
aoqi@0 159 public String getIdValue(JAXBElement o) {
aoqi@0 160 return null;
aoqi@0 161 }
aoqi@0 162
aoqi@0 163 public PropertyKind getKind() {
aoqi@0 164 return PropertyKind.ELEMENT;
aoqi@0 165 }
aoqi@0 166
aoqi@0 167 public void buildChildElementUnmarshallers(UnmarshallerChain chain, QNameMap<ChildLoader> handlers) {
aoqi@0 168 }
aoqi@0 169
aoqi@0 170 public Accessor getElementPropertyAccessor(String nsUri, String localName) {
aoqi@0 171 throw new UnsupportedOperationException();
aoqi@0 172 }
aoqi@0 173
aoqi@0 174 public void wrapUp() {
aoqi@0 175 }
aoqi@0 176
aoqi@0 177 public RuntimePropertyInfo getInfo() {
aoqi@0 178 return property.getInfo();
aoqi@0 179 }
aoqi@0 180
aoqi@0 181 public boolean isHiddenByOverride() {
aoqi@0 182 return false;
aoqi@0 183 }
aoqi@0 184
aoqi@0 185 public void setHiddenByOverride(boolean hidden) {
aoqi@0 186 throw new UnsupportedOperationException("Not supported on jaxbelements.");
aoqi@0 187 }
aoqi@0 188
aoqi@0 189 public String getFieldName() {
aoqi@0 190 return null;
aoqi@0 191 }
aoqi@0 192
aoqi@0 193 };
aoqi@0 194 }
aoqi@0 195
aoqi@0 196 /**
aoqi@0 197 * Use the previous {@link UnmarshallingContext.State}'s target to store
aoqi@0 198 * {@link JAXBElement} object to be unmarshalled. This allows the property {@link Loader}
aoqi@0 199 * to correctly find the parent object.
aoqi@0 200 * This is a hack.
aoqi@0 201 */
aoqi@0 202 private final class IntercepterLoader extends Loader implements Intercepter {
aoqi@0 203 private final Loader core;
aoqi@0 204
aoqi@0 205 public IntercepterLoader(Loader core) {
aoqi@0 206 this.core = core;
aoqi@0 207 }
aoqi@0 208
aoqi@0 209 @Override
aoqi@0 210 public final void startElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
aoqi@0 211 state.loader = core;
aoqi@0 212 state.intercepter = this;
aoqi@0 213
aoqi@0 214 // TODO: make sure there aren't too many duplicate of this code
aoqi@0 215 // create the object to unmarshal
aoqi@0 216 Object child;
aoqi@0 217 UnmarshallingContext context = state.getContext();
aoqi@0 218
aoqi@0 219 // let's see if we can reuse the existing peer object
aoqi@0 220 child = context.getOuterPeer();
aoqi@0 221
aoqi@0 222 if(child!=null && jaxbType!=child.getClass())
aoqi@0 223 child = null; // unexpected type.
aoqi@0 224
aoqi@0 225 if(child!=null)
aoqi@0 226 reset((JAXBElement)child,context);
aoqi@0 227
aoqi@0 228 if(child==null)
aoqi@0 229 child = context.createInstance(ElementBeanInfoImpl.this);
aoqi@0 230
aoqi@0 231 fireBeforeUnmarshal(ElementBeanInfoImpl.this, child, state);
aoqi@0 232
aoqi@0 233 context.recordOuterPeer(child);
aoqi@0 234 UnmarshallingContext.State p = state.prev;
aoqi@0 235 p.backup = p.target;
aoqi@0 236 p.target = child;
aoqi@0 237
aoqi@0 238 core.startElement(state,ea);
aoqi@0 239 }
aoqi@0 240
aoqi@0 241 public Object intercept(UnmarshallingContext.State state, Object o) throws SAXException {
aoqi@0 242 JAXBElement e = (JAXBElement)state.target;
aoqi@0 243 state.target = state.backup;
aoqi@0 244 state.backup = null;
aoqi@0 245
aoqi@0 246 if (state.nil) {
aoqi@0 247 e.setNil(true);
aoqi@0 248 state.nil = false;
aoqi@0 249 }
aoqi@0 250
aoqi@0 251 if(o!=null)
aoqi@0 252 // if the value is a leaf type, it's often already set to the element
aoqi@0 253 // through Accessor.
aoqi@0 254 e.setValue(o);
aoqi@0 255
aoqi@0 256 fireAfterUnmarshal(ElementBeanInfoImpl.this, e, state);
aoqi@0 257
aoqi@0 258 return e;
aoqi@0 259 }
aoqi@0 260 }
aoqi@0 261
aoqi@0 262 public String getElementNamespaceURI(JAXBElement e) {
aoqi@0 263 return e.getName().getNamespaceURI();
aoqi@0 264 }
aoqi@0 265
aoqi@0 266 public String getElementLocalName(JAXBElement e) {
aoqi@0 267 return e.getName().getLocalPart();
aoqi@0 268 }
aoqi@0 269
aoqi@0 270 public Loader getLoader(JAXBContextImpl context, boolean typeSubstitutionCapable) {
aoqi@0 271 if(loader==null) {
aoqi@0 272 // this has to be done lazily to avoid cyclic reference issue
aoqi@0 273 UnmarshallerChain c = new UnmarshallerChain(context);
aoqi@0 274 QNameMap<ChildLoader> result = new QNameMap<ChildLoader>();
aoqi@0 275 property.buildChildElementUnmarshallers(c,result);
aoqi@0 276 if(result.size()==1)
aoqi@0 277 // for ElementBeanInfoImpl created from RuntimeElementInfo
aoqi@0 278 this.loader = new IntercepterLoader(result.getOne().getValue().loader);
aoqi@0 279 else
aoqi@0 280 // for special ElementBeanInfoImpl only used for marshalling
aoqi@0 281 this.loader = Discarder.INSTANCE;
aoqi@0 282 }
aoqi@0 283 return loader;
aoqi@0 284 }
aoqi@0 285
aoqi@0 286 public final JAXBElement createInstance(UnmarshallingContext context) throws IllegalAccessException, InvocationTargetException, InstantiationException {
aoqi@0 287 return createInstanceFromValue(null);
aoqi@0 288 }
aoqi@0 289
aoqi@0 290 public final JAXBElement createInstanceFromValue(Object o) throws IllegalAccessException, InvocationTargetException, InstantiationException {
aoqi@0 291 if(constructor==null)
aoqi@0 292 return new JAXBElement(tagName,expectedType,scope,o);
aoqi@0 293 else
aoqi@0 294 return constructor.newInstance(o);
aoqi@0 295 }
aoqi@0 296
aoqi@0 297 public boolean reset(JAXBElement e, UnmarshallingContext context) {
aoqi@0 298 e.setValue(null);
aoqi@0 299 return true;
aoqi@0 300 }
aoqi@0 301
aoqi@0 302 public String getId(JAXBElement e, XMLSerializer target) {
aoqi@0 303 // TODO: is this OK? Should we be returning the ID value of the type property?
aoqi@0 304 /*
aoqi@0 305 There's one case where we JAXBElement needs to be designated as ID,
aoqi@0 306 and that is when there's a global element whose type is ID.
aoqi@0 307 */
aoqi@0 308 Object o = e.getValue();
aoqi@0 309 if(o instanceof String)
aoqi@0 310 return (String)o;
aoqi@0 311 else
aoqi@0 312 return null;
aoqi@0 313 }
aoqi@0 314
aoqi@0 315 public void serializeBody(JAXBElement element, XMLSerializer target) throws SAXException, IOException, XMLStreamException {
aoqi@0 316 try {
aoqi@0 317 property.serializeBody(element,target,null);
aoqi@0 318 } catch (AccessorException x) {
aoqi@0 319 target.reportError(null,x);
aoqi@0 320 }
aoqi@0 321 }
aoqi@0 322
aoqi@0 323 public void serializeRoot(JAXBElement e, XMLSerializer target) throws SAXException, IOException, XMLStreamException {
aoqi@0 324 serializeBody(e,target);
aoqi@0 325 }
aoqi@0 326
aoqi@0 327 public void serializeAttributes(JAXBElement e, XMLSerializer target) {
aoqi@0 328 // noop
aoqi@0 329 }
aoqi@0 330
aoqi@0 331 public void serializeURIs(JAXBElement e, XMLSerializer target) {
aoqi@0 332 // noop
aoqi@0 333 }
aoqi@0 334
aoqi@0 335 public final Transducer<JAXBElement> getTransducer() {
aoqi@0 336 return null;
aoqi@0 337 }
aoqi@0 338
aoqi@0 339 @Override
aoqi@0 340 public void wrapUp() {
aoqi@0 341 super.wrapUp();
aoqi@0 342 property.wrapUp();
aoqi@0 343 }
aoqi@0 344
aoqi@0 345 @Override
aoqi@0 346 public void link(JAXBContextImpl grammar) {
aoqi@0 347 super.link(grammar);
aoqi@0 348 getLoader(grammar,true); // make sure to build them, if we hadn't done so
aoqi@0 349 }
aoqi@0 350 }

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