diff -r 000000000000 -r 373ffda63c9a src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/StructureLoader.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/StructureLoader.java Wed Apr 27 01:27:09 2016 +0800 @@ -0,0 +1,284 @@ +/* + * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package com.sun.xml.internal.bind.v2.runtime.unmarshaller; + +import java.util.Collection; +import java.util.HashMap; +import java.util.Map; + +import javax.xml.namespace.QName; + +import com.sun.xml.internal.bind.api.AccessorException; +import com.sun.xml.internal.bind.v2.WellKnownNamespace; +import com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl; +import com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl; +import com.sun.xml.internal.bind.v2.runtime.JaxBeanInfo; +import com.sun.xml.internal.bind.v2.runtime.property.AttributeProperty; +import com.sun.xml.internal.bind.v2.runtime.property.Property; +import com.sun.xml.internal.bind.v2.runtime.property.StructureLoaderBuilder; +import com.sun.xml.internal.bind.v2.runtime.property.UnmarshallerChain; +import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor; +import com.sun.xml.internal.bind.v2.runtime.reflect.TransducedAccessor; +import com.sun.xml.internal.bind.v2.util.QNameMap; + +import java.util.Iterator; +import org.xml.sax.Attributes; +import org.xml.sax.SAXException; + +/** + * Loads children of an element. + * + *

+ * This loader works with a single {@link JaxBeanInfo} and handles + * attributes, child elements, or child text. + * + * @author Kohsuke Kawaguchi + */ +public final class StructureLoader extends Loader { + /** + * This map statically stores information of the + * unmarshaller loader and can be used while unmarshalling + * Since creating new QNames is expensive use this optimized + * version of the map + */ + private final QNameMap childUnmarshallers = new QNameMap(); + + /** + * Loader that processes elements that didn't match anf of the {@link #childUnmarshallers}. + * Can be null. + */ + private /*final*/ ChildLoader catchAll; + + /** + * If we have a loader for processing text. Otherwise null. + */ + private /*final*/ ChildLoader textHandler; + + /** + * Unmarshallers for attribute values. + * May be null if no attribute is expected and {@link #attCatchAll}==null. + */ + private /*final*/ QNameMap attUnmarshallers; + + /** + * This will receive all the attributes + * that were not processed. Never be null. + */ + private /*final*/ Accessor> attCatchAll; + + private final JaxBeanInfo beanInfo; + + /** + * The number of scopes this dispatcher needs to keep active. + */ + private /*final*/ int frameSize; + + // this class is potentially useful for general audience, not just for ClassBeanInfoImpl, + // but since right now that is the only user, we make the construction code very specific + // to ClassBeanInfoImpl. See rev.1.5 of this file for the original general purpose definition. + public StructureLoader(ClassBeanInfoImpl beanInfo) { + super(true); + this.beanInfo = beanInfo; + } + + /** + * Completes the initialization. + * + *

+ * To fix the cyclic reference issue, the main part of the initialization needs to be done + * after a {@link StructureLoader} is set to {@link ClassBeanInfoImpl#loader}. + */ + public void init( JAXBContextImpl context, ClassBeanInfoImpl beanInfo, Accessor> attWildcard) { + UnmarshallerChain chain = new UnmarshallerChain(context); + for (ClassBeanInfoImpl bi = beanInfo; bi != null; bi = bi.superClazz) { + for (int i = bi.properties.length - 1; i >= 0; i--) { + Property p = bi.properties[i]; + + switch(p.getKind()) { + case ATTRIBUTE: + if(attUnmarshallers==null) + attUnmarshallers = new QNameMap(); + AttributeProperty ap = (AttributeProperty) p; + attUnmarshallers.put(ap.attName.toQName(),ap.xacc); + break; + case ELEMENT: + case REFERENCE: + case MAP: + case VALUE: + p.buildChildElementUnmarshallers(chain,childUnmarshallers); + break; + } + } + } + + this.frameSize = chain.getScopeSize(); + + textHandler = childUnmarshallers.get(StructureLoaderBuilder.TEXT_HANDLER); + catchAll = childUnmarshallers.get(StructureLoaderBuilder.CATCH_ALL); + + if(attWildcard!=null) { + attCatchAll = (Accessor>) attWildcard; + // we use attUnmarshallers==null as a sign to skip the attribute processing + // altogether, so if we have an att wildcard we need to have an empty qname map. + if(attUnmarshallers==null) + attUnmarshallers = EMPTY; + } else { + attCatchAll = null; + } + } + + @Override + public void startElement(UnmarshallingContext.State state, TagName ea) throws SAXException { + UnmarshallingContext context = state.getContext(); + + // create the object to unmarshal + Object child; + assert !beanInfo.isImmutable(); + + // let's see if we can reuse the existing peer object + child = context.getInnerPeer(); + + if(child != null && beanInfo.jaxbType!=child.getClass()) + child = null; // unexpected type. + + if(child != null) + beanInfo.reset(child,context); + + if(child == null) + child = context.createInstance(beanInfo); + + context.recordInnerPeer(child); + + state.target = child; + + fireBeforeUnmarshal(beanInfo, child, state); + + + context.startScope(frameSize); + + if(attUnmarshallers!=null) { + Attributes atts = ea.atts; + for (int i = 0; i < atts.getLength(); i ++){ + String auri = atts.getURI(i); + // may be empty string based on parser settings + String alocal = atts.getLocalName(i); + if ("".equals(alocal)) { + alocal = atts.getQName(i); + } + String avalue = atts.getValue(i); + TransducedAccessor xacc = attUnmarshallers.get(auri, alocal); + try { + if(xacc!=null) { + xacc.parse(child,avalue); + } else if (attCatchAll!=null) { + String qname = atts.getQName(i); + if(atts.getURI(i).equals(WellKnownNamespace.XML_SCHEMA_INSTANCE)) + continue; // xsi:* attributes are meant to be processed by us, not by user apps. + Object o = state.target; + Map map = attCatchAll.get(o); + if(map==null) { + // TODO: use ClassFactory.inferImplClass(sig,knownImplClasses) + + // if null, create a new map. + if(attCatchAll.valueType.isAssignableFrom(HashMap.class)) + map = new HashMap(); + else { + // we don't know how to create a map for this. + // report an error and back out + context.handleError(Messages.UNABLE_TO_CREATE_MAP.format(attCatchAll.valueType)); + return; + } + attCatchAll.set(o,map); + } + + String prefix; + int idx = qname.indexOf(':'); + if(idx<0) prefix=""; + else prefix=qname.substring(0,idx); + + map.put(new QName(auri,alocal,prefix),avalue); + } + } catch (AccessorException e) { + handleGenericException(e,true); + } + } + } + } + + @Override + public void childElement(UnmarshallingContext.State state, TagName arg) throws SAXException { + ChildLoader child = childUnmarshallers.get(arg.uri,arg.local); + if(child==null) { + if ((beanInfo != null) && (beanInfo.getTypeNames() != null)) { + Iterator typeNamesIt = beanInfo.getTypeNames().iterator(); + QName parentQName = null; + if ((typeNamesIt != null) && (typeNamesIt.hasNext()) && (catchAll == null)) { + parentQName = (QName) typeNamesIt.next(); + String parentUri = parentQName.getNamespaceURI(); + child = childUnmarshallers.get(parentUri, arg.local); + } + } + if (child == null) { + child = catchAll; + if(child==null) { + super.childElement(state,arg); + return; + } + } + } + + state.loader = child.loader; + state.receiver = child.receiver; + } + + @Override + public Collection getExpectedChildElements() { + return childUnmarshallers.keySet(); + } + + @Override + public Collection getExpectedAttributes() { + return attUnmarshallers.keySet(); + } + + @Override + public void text(UnmarshallingContext.State state, CharSequence text) throws SAXException { + if(textHandler!=null) + textHandler.loader.text(state,text); + } + + @Override + public void leaveElement(UnmarshallingContext.State state, TagName ea) throws SAXException { + state.getContext().endScope(frameSize); + fireAfterUnmarshal(beanInfo, state.target, state.prev); + } + + private static final QNameMap EMPTY = new QNameMap(); + + public JaxBeanInfo getBeanInfo() { + return beanInfo; + } +}