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

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

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 397
b99d7e355d4b
parent 0
373ffda63c9a
child 760
e530533619ec
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1997, 2010, 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.unmarshaller;
aoqi@0 27
aoqi@0 28 import javax.xml.namespace.QName;
aoqi@0 29
aoqi@0 30 import com.sun.xml.internal.bind.DatatypeConverterImpl;
aoqi@0 31 import com.sun.xml.internal.bind.v2.WellKnownNamespace;
aoqi@0 32 import com.sun.xml.internal.bind.v2.runtime.JaxBeanInfo;
aoqi@0 33 import com.sun.istack.internal.Nullable;
aoqi@0 34
aoqi@0 35 import java.util.Collection;
aoqi@0 36 import java.util.Collections;
aoqi@0 37 import java.util.HashSet;
aoqi@0 38 import org.xml.sax.Attributes;
aoqi@0 39 import org.xml.sax.SAXException;
aoqi@0 40
aoqi@0 41 /**
aoqi@0 42 * Looks at @xsi:type and forwards to the right {@link Loader}.
aoqi@0 43 *
aoqi@0 44 * @author Kohsuke Kawaguchi
aoqi@0 45 */
aoqi@0 46 public class XsiTypeLoader extends Loader {
aoqi@0 47
aoqi@0 48 /**
aoqi@0 49 * Use this when no @xsi:type was found.
aoqi@0 50 */
aoqi@0 51 private final JaxBeanInfo defaultBeanInfo;
aoqi@0 52
aoqi@0 53 public XsiTypeLoader(JaxBeanInfo defaultBeanInfo) {
aoqi@0 54 super(true);
aoqi@0 55 this.defaultBeanInfo = defaultBeanInfo;
aoqi@0 56 }
aoqi@0 57
aoqi@0 58 public void startElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
aoqi@0 59 JaxBeanInfo beanInfo = parseXsiType(state,ea,defaultBeanInfo);
aoqi@0 60 if(beanInfo==null)
aoqi@0 61 beanInfo = defaultBeanInfo;
aoqi@0 62
aoqi@0 63 Loader loader = beanInfo.getLoader(null,false);
aoqi@0 64 state.loader = loader;
aoqi@0 65 loader.startElement(state,ea);
aoqi@0 66 }
aoqi@0 67
aoqi@0 68 /*pacakge*/ static JaxBeanInfo parseXsiType(UnmarshallingContext.State state, TagName ea, @Nullable JaxBeanInfo defaultBeanInfo) throws SAXException {
aoqi@0 69 UnmarshallingContext context = state.getContext();
aoqi@0 70 JaxBeanInfo beanInfo = null;
aoqi@0 71
aoqi@0 72 // look for @xsi:type
aoqi@0 73 Attributes atts = ea.atts;
aoqi@0 74 int idx = atts.getIndex(WellKnownNamespace.XML_SCHEMA_INSTANCE,"type");
aoqi@0 75
aoqi@0 76 if(idx>=0) {
aoqi@0 77 // we'll consume the value only when it's a recognized value,
aoqi@0 78 // so don't consume it just yet.
aoqi@0 79 String value = atts.getValue(idx);
aoqi@0 80
aoqi@0 81 QName type = DatatypeConverterImpl._parseQName(value,context);
aoqi@0 82 if(type==null) {
aoqi@0 83 reportError(Messages.NOT_A_QNAME.format(value),true);
aoqi@0 84 } else {
aoqi@0 85 if(defaultBeanInfo!=null && defaultBeanInfo.getTypeNames().contains(type))
aoqi@0 86 // if this xsi:type is something that the default type can already handle,
aoqi@0 87 // let it do so. This is added as a work around to bug https://jax-ws.dev.java.net/issues/show_bug.cgi?id=195
aoqi@0 88 // where a redundant xsi:type="xs:dateTime" causes JAXB to unmarshal XMLGregorianCalendar,
aoqi@0 89 // where Date is expected.
aoqi@0 90 // this is not a complete fix, as we still won't be able to handle simple type substitution in general,
aoqi@0 91 // but none-the-less
aoqi@0 92 return defaultBeanInfo;
aoqi@0 93
aoqi@0 94 beanInfo = context.getJAXBContext().getGlobalType(type);
aoqi@0 95 if(beanInfo==null) { // let's report an error
aoqi@0 96 if (context.parent.hasEventHandler() // is somebody listening?
aoqi@0 97 && context.shouldErrorBeReported()) { // should we report error?
aoqi@0 98 String nearest = context.getJAXBContext().getNearestTypeName(type);
aoqi@0 99 if(nearest!=null)
aoqi@0 100 reportError(Messages.UNRECOGNIZED_TYPE_NAME_MAYBE.format(type,nearest),true);
aoqi@0 101 else
aoqi@0 102 reportError(Messages.UNRECOGNIZED_TYPE_NAME.format(type),true);
aoqi@0 103 }
aoqi@0 104 }
aoqi@0 105 // TODO: resurrect the following check
aoqi@0 106 // else
aoqi@0 107 // if(!target.isAssignableFrom(actual)) {
aoqi@0 108 // reportError(context,
aoqi@0 109 // Messages.UNSUBSTITUTABLE_TYPE.format(value,actual.getName(),target.getName()),
aoqi@0 110 // true);
aoqi@0 111 // actual = targetBeanInfo; // ditto
aoqi@0 112 // }
aoqi@0 113 }
aoqi@0 114 }
aoqi@0 115 return beanInfo;
aoqi@0 116 }
aoqi@0 117
aoqi@0 118 static final QName XsiTypeQNAME = new QName(WellKnownNamespace.XML_SCHEMA_INSTANCE,"type");
aoqi@0 119
aoqi@0 120 @Override
aoqi@0 121 public Collection<QName> getExpectedAttributes() {
aoqi@0 122 final Collection<QName> expAttrs = new HashSet<QName>();
aoqi@0 123 expAttrs.addAll(super.getExpectedAttributes());
aoqi@0 124 expAttrs.add(XsiTypeQNAME);
aoqi@0 125 return Collections.unmodifiableCollection(expAttrs);
aoqi@0 126 }
aoqi@0 127 }

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