1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/ElementBeanInfoImpl.java Tue Mar 06 16:09:35 2012 -0800
1.3 @@ -0,0 +1,351 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.xml.internal.bind.v2.runtime;
1.30 +
1.31 +import java.io.IOException;
1.32 +import java.lang.reflect.Constructor;
1.33 +import java.lang.reflect.InvocationTargetException;
1.34 +
1.35 +import javax.xml.bind.JAXBElement;
1.36 +import javax.xml.bind.JAXBException;
1.37 +import javax.xml.namespace.QName;
1.38 +import javax.xml.stream.XMLStreamException;
1.39 +
1.40 +import com.sun.xml.internal.bind.api.AccessorException;
1.41 +import com.sun.xml.internal.bind.v2.model.core.PropertyKind;
1.42 +import com.sun.xml.internal.bind.v2.model.nav.Navigator;
1.43 +import com.sun.xml.internal.bind.v2.model.runtime.RuntimeElementInfo;
1.44 +import com.sun.xml.internal.bind.v2.model.runtime.RuntimePropertyInfo;
1.45 +import com.sun.xml.internal.bind.v2.runtime.property.Property;
1.46 +import com.sun.xml.internal.bind.v2.runtime.property.PropertyFactory;
1.47 +import com.sun.xml.internal.bind.v2.runtime.property.UnmarshallerChain;
1.48 +import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor;
1.49 +import com.sun.xml.internal.bind.v2.runtime.unmarshaller.ChildLoader;
1.50 +import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Discarder;
1.51 +import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Intercepter;
1.52 +import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader;
1.53 +import com.sun.xml.internal.bind.v2.runtime.unmarshaller.TagName;
1.54 +import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext;
1.55 +import com.sun.xml.internal.bind.v2.util.QNameMap;
1.56 +
1.57 +import org.xml.sax.SAXException;
1.58 +
1.59 +/**
1.60 + * {@link JaxBeanInfo} implementation for {@link RuntimeElementInfo}.
1.61 + *
1.62 + * @author Kohsuke Kawaguchi
1.63 + */
1.64 +public final class ElementBeanInfoImpl extends JaxBeanInfo<JAXBElement> {
1.65 +
1.66 + private Loader loader;
1.67 +
1.68 + private final Property property;
1.69 +
1.70 + // used to create new instances of JAXBElement.
1.71 + private final QName tagName;
1.72 + public final Class expectedType;
1.73 + private final Class scope;
1.74 +
1.75 + /**
1.76 + * If non-null, use this to create an instance.
1.77 + * It takes one value.
1.78 + */
1.79 + private final Constructor<? extends JAXBElement> constructor;
1.80 +
1.81 + ElementBeanInfoImpl(JAXBContextImpl grammar, RuntimeElementInfo rei) {
1.82 + super(grammar,rei,(Class<JAXBElement>)rei.getType(),true,false,true);
1.83 +
1.84 + this.property = PropertyFactory.create(grammar,rei.getProperty());
1.85 +
1.86 + tagName = rei.getElementName();
1.87 + expectedType = Navigator.REFLECTION.erasure(rei.getContentInMemoryType());
1.88 + scope = rei.getScope()==null ? JAXBElement.GlobalScope.class : rei.getScope().getClazz();
1.89 +
1.90 + Class type = Navigator.REFLECTION.erasure(rei.getType());
1.91 + if(type==JAXBElement.class)
1.92 + constructor = null;
1.93 + else {
1.94 + try {
1.95 + constructor = type.getConstructor(expectedType);
1.96 + } catch (NoSuchMethodException e) {
1.97 + NoSuchMethodError x = new NoSuchMethodError("Failed to find the constructor for " + type + " with " + expectedType);
1.98 + x.initCause(e);
1.99 + throw x;
1.100 + }
1.101 + }
1.102 + }
1.103 +
1.104 + /**
1.105 + * The constructor for the sole instanceof {@link JaxBeanInfo} for
1.106 + * handling user-created {@link JAXBElement}.
1.107 + *
1.108 + * Such {@link JaxBeanInfo} is used only for marshalling.
1.109 + *
1.110 + * This is a hack.
1.111 + */
1.112 + protected ElementBeanInfoImpl(final JAXBContextImpl grammar) {
1.113 + super(grammar,null,JAXBElement.class,true,false,true);
1.114 + tagName = null;
1.115 + expectedType = null;
1.116 + scope = null;
1.117 + constructor = null;
1.118 +
1.119 + this.property = new Property<JAXBElement>() {
1.120 + public void reset(JAXBElement o) {
1.121 + throw new UnsupportedOperationException();
1.122 + }
1.123 +
1.124 + public void serializeBody(JAXBElement e, XMLSerializer target, Object outerPeer) throws SAXException, IOException, XMLStreamException {
1.125 + Class scope = e.getScope();
1.126 + if(e.isGlobalScope()) scope = null;
1.127 + QName n = e.getName();
1.128 + ElementBeanInfoImpl bi = grammar.getElement(scope,n);
1.129 + if(bi==null) {
1.130 + // infer what to do from the type
1.131 + JaxBeanInfo tbi;
1.132 + try {
1.133 + tbi = grammar.getBeanInfo(e.getDeclaredType(),true);
1.134 + } catch (JAXBException x) {
1.135 + // if e.getDeclaredType() isn't known to this JAXBContext
1.136 + target.reportError(null,x);
1.137 + return;
1.138 + }
1.139 + Object value = e.getValue();
1.140 + target.startElement(n.getNamespaceURI(),n.getLocalPart(),n.getPrefix(),null);
1.141 + if(value==null) {
1.142 + target.writeXsiNilTrue();
1.143 + } else {
1.144 + target.childAsXsiType(value,"value",tbi, false);
1.145 + }
1.146 + target.endElement();
1.147 + } else {
1.148 + try {
1.149 + bi.property.serializeBody(e,target,e);
1.150 + } catch (AccessorException x) {
1.151 + target.reportError(null,x);
1.152 + }
1.153 + }
1.154 + }
1.155 +
1.156 + public void serializeURIs(JAXBElement o, XMLSerializer target) {
1.157 + }
1.158 +
1.159 + public boolean hasSerializeURIAction() {
1.160 + return false;
1.161 + }
1.162 +
1.163 + public String getIdValue(JAXBElement o) {
1.164 + return null;
1.165 + }
1.166 +
1.167 + public PropertyKind getKind() {
1.168 + return PropertyKind.ELEMENT;
1.169 + }
1.170 +
1.171 + public void buildChildElementUnmarshallers(UnmarshallerChain chain, QNameMap<ChildLoader> handlers) {
1.172 + }
1.173 +
1.174 + public Accessor getElementPropertyAccessor(String nsUri, String localName) {
1.175 + throw new UnsupportedOperationException();
1.176 + }
1.177 +
1.178 + public void wrapUp() {
1.179 + }
1.180 +
1.181 + public RuntimePropertyInfo getInfo() {
1.182 + return property.getInfo();
1.183 + }
1.184 +
1.185 + public boolean isHiddenByOverride() {
1.186 + return false;
1.187 + }
1.188 +
1.189 + public void setHiddenByOverride(boolean hidden) {
1.190 + throw new UnsupportedOperationException("Not supported on jaxbelements.");
1.191 + }
1.192 +
1.193 + public String getFieldName() {
1.194 + return null;
1.195 + }
1.196 +
1.197 + };
1.198 + }
1.199 +
1.200 + /**
1.201 + * Use the previous {@link UnmarshallingContext.State}'s target to store
1.202 + * {@link JAXBElement} object to be unmarshalled. This allows the property {@link Loader}
1.203 + * to correctly find the parent object.
1.204 + * This is a hack.
1.205 + */
1.206 + private final class IntercepterLoader extends Loader implements Intercepter {
1.207 + private final Loader core;
1.208 +
1.209 + public IntercepterLoader(Loader core) {
1.210 + this.core = core;
1.211 + }
1.212 +
1.213 + @Override
1.214 + public final void startElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
1.215 + state.loader = core;
1.216 + state.intercepter = this;
1.217 +
1.218 + // TODO: make sure there aren't too many duplicate of this code
1.219 + // create the object to unmarshal
1.220 + Object child;
1.221 + UnmarshallingContext context = state.getContext();
1.222 +
1.223 + // let's see if we can reuse the existing peer object
1.224 + child = context.getOuterPeer();
1.225 +
1.226 + if(child!=null && jaxbType!=child.getClass())
1.227 + child = null; // unexpected type.
1.228 +
1.229 + if(child!=null)
1.230 + reset((JAXBElement)child,context);
1.231 +
1.232 + if(child==null)
1.233 + child = context.createInstance(ElementBeanInfoImpl.this);
1.234 +
1.235 + fireBeforeUnmarshal(ElementBeanInfoImpl.this, child, state);
1.236 +
1.237 + context.recordOuterPeer(child);
1.238 + UnmarshallingContext.State p = state.prev;
1.239 + p.backup = p.target;
1.240 + p.target = child;
1.241 +
1.242 + core.startElement(state,ea);
1.243 + }
1.244 +
1.245 + public Object intercept(UnmarshallingContext.State state, Object o) throws SAXException {
1.246 + JAXBElement e = (JAXBElement)state.target;
1.247 + state.target = state.backup;
1.248 + state.backup = null;
1.249 +
1.250 + if (state.nil) {
1.251 + e.setNil(true);
1.252 + state.nil = false;
1.253 + }
1.254 +
1.255 + if(o!=null)
1.256 + // if the value is a leaf type, it's often already set to the element
1.257 + // through Accessor.
1.258 + e.setValue(o);
1.259 +
1.260 + fireAfterUnmarshal(ElementBeanInfoImpl.this, e, state);
1.261 +
1.262 + return e;
1.263 + }
1.264 + }
1.265 +
1.266 + public String getElementNamespaceURI(JAXBElement e) {
1.267 + return e.getName().getNamespaceURI();
1.268 + }
1.269 +
1.270 + public String getElementLocalName(JAXBElement e) {
1.271 + return e.getName().getLocalPart();
1.272 + }
1.273 +
1.274 + public Loader getLoader(JAXBContextImpl context, boolean typeSubstitutionCapable) {
1.275 + if(loader==null) {
1.276 + // this has to be done lazily to avoid cyclic reference issue
1.277 + UnmarshallerChain c = new UnmarshallerChain(context);
1.278 + QNameMap<ChildLoader> result = new QNameMap<ChildLoader>();
1.279 + property.buildChildElementUnmarshallers(c,result);
1.280 + if(result.size()==1)
1.281 + // for ElementBeanInfoImpl created from RuntimeElementInfo
1.282 + this.loader = new IntercepterLoader(result.getOne().getValue().loader);
1.283 + else
1.284 + // for special ElementBeanInfoImpl only used for marshalling
1.285 + this.loader = Discarder.INSTANCE;
1.286 + }
1.287 + return loader;
1.288 + }
1.289 +
1.290 + public final JAXBElement createInstance(UnmarshallingContext context) throws IllegalAccessException, InvocationTargetException, InstantiationException {
1.291 + return createInstanceFromValue(null);
1.292 + }
1.293 +
1.294 + public final JAXBElement createInstanceFromValue(Object o) throws IllegalAccessException, InvocationTargetException, InstantiationException {
1.295 + if(constructor==null)
1.296 + return new JAXBElement(tagName,expectedType,scope,o);
1.297 + else
1.298 + return constructor.newInstance(o);
1.299 + }
1.300 +
1.301 + public boolean reset(JAXBElement e, UnmarshallingContext context) {
1.302 + e.setValue(null);
1.303 + return true;
1.304 + }
1.305 +
1.306 + public String getId(JAXBElement e, XMLSerializer target) {
1.307 + // TODO: is this OK? Should we be returning the ID value of the type property?
1.308 + /*
1.309 + There's one case where we JAXBElement needs to be designated as ID,
1.310 + and that is when there's a global element whose type is ID.
1.311 + */
1.312 + Object o = e.getValue();
1.313 + if(o instanceof String)
1.314 + return (String)o;
1.315 + else
1.316 + return null;
1.317 + }
1.318 +
1.319 + public void serializeBody(JAXBElement element, XMLSerializer target) throws SAXException, IOException, XMLStreamException {
1.320 + try {
1.321 + property.serializeBody(element,target,null);
1.322 + } catch (AccessorException x) {
1.323 + target.reportError(null,x);
1.324 + }
1.325 + }
1.326 +
1.327 + public void serializeRoot(JAXBElement e, XMLSerializer target) throws SAXException, IOException, XMLStreamException {
1.328 + serializeBody(e,target);
1.329 + }
1.330 +
1.331 + public void serializeAttributes(JAXBElement e, XMLSerializer target) {
1.332 + // noop
1.333 + }
1.334 +
1.335 + public void serializeURIs(JAXBElement e, XMLSerializer target) {
1.336 + // noop
1.337 + }
1.338 +
1.339 + public final Transducer<JAXBElement> getTransducer() {
1.340 + return null;
1.341 + }
1.342 +
1.343 + @Override
1.344 + public void wrapUp() {
1.345 + super.wrapUp();
1.346 + property.wrapUp();
1.347 + }
1.348 +
1.349 + @Override
1.350 + public void link(JAXBContextImpl grammar) {
1.351 + super.link(grammar);
1.352 + getLoader(grammar,true); // make sure to build them, if we hadn't done so
1.353 + }
1.354 +}
