Mercurial > jdk8-mips64-public > jaxws / file comparison
comparison: src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/XsiNilLoader.java
src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/XsiNilLoader.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.unmarshaller; | |
| 27 | |
| 28 import java.util.Collection; | |
| 29 | |
| 30 import javax.xml.bind.JAXBElement; | |
| 31 import javax.xml.namespace.QName; | |
| 32 | |
| 33 import com.sun.xml.internal.bind.DatatypeConverterImpl; | |
| 34 import com.sun.xml.internal.bind.api.AccessorException; | |
| 35 import com.sun.xml.internal.bind.v2.WellKnownNamespace; | |
| 36 import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor; | |
| 37 | |
| 38 import org.xml.sax.SAXException; | |
| 39 | |
| 40 /** | |
| 41 * Looks for xsi:nil='true' and sets the target to null. | |
| 42 * Otherwise delegate to another handler. | |
| 43 * | |
| 44 * @author Kohsuke Kawaguchi | |
| 45 */ | |
| 46 public class XsiNilLoader extends ProxyLoader { | |
| 47 | |
| 48 private final Loader defaultLoader; | |
| 49 | |
| 50 public XsiNilLoader(Loader defaultLoader) { | |
| 51 this.defaultLoader = defaultLoader; | |
| 52 assert defaultLoader!=null; | |
| 53 } | |
| 54 | |
| 55 protected Loader selectLoader(UnmarshallingContext.State state, TagName ea) throws SAXException { | |
| 56 int idx = ea.atts.getIndex(WellKnownNamespace.XML_SCHEMA_INSTANCE,"nil"); | |
| 57 | |
| 58 if (idx!=-1) { | |
| 59 Boolean b = DatatypeConverterImpl._parseBoolean(ea.atts.getValue(idx)); | |
| 60 | |
| 61 if (b != null && b) { | |
| 62 onNil(state); | |
| 63 boolean hasOtherAttributes = (ea.atts.getLength() - 1) > 0; | |
| 64 // see issues 6759703 and 565 - need to preserve attributes even if the element is nil; only when the type is stored in JAXBElement | |
| 65 if (!(hasOtherAttributes && (state.prev.target instanceof JAXBElement))) { | |
| 66 return Discarder.INSTANCE; | |
| 67 } | |
| 68 } | |
| 69 } | |
| 70 return defaultLoader; | |
| 71 } | |
| 72 | |
| 73 @Override | |
| 74 public Collection<QName> getExpectedChildElements() { | |
| 75 return defaultLoader.getExpectedChildElements(); | |
| 76 } | |
| 77 | |
| 78 @Override | |
| 79 public Collection<QName> getExpectedAttributes() { | |
| 80 return defaultLoader.getExpectedAttributes(); | |
| 81 } | |
| 82 | |
| 83 /** | |
| 84 * Called when xsi:nil='true' was found. | |
| 85 */ | |
| 86 protected void onNil(UnmarshallingContext.State state) throws SAXException { | |
| 87 } | |
| 88 | |
| 89 public static final class Single extends XsiNilLoader { | |
| 90 private final Accessor acc; | |
| 91 public Single(Loader l, Accessor acc) { | |
| 92 super(l); | |
| 93 this.acc = acc; | |
| 94 } | |
| 95 | |
| 96 @Override | |
| 97 protected void onNil(UnmarshallingContext.State state) throws SAXException { | |
| 98 try { | |
| 99 acc.set(state.prev.target,null); | |
| 100 state.prev.nil = true; | |
| 101 } catch (AccessorException e) { | |
| 102 handleGenericException(e,true); | |
| 103 } | |
| 104 } | |
| 105 | |
| 106 } | |
| 107 | |
| 108 public static final class Array extends XsiNilLoader { | |
| 109 public Array(Loader core) { | |
| 110 super(core); | |
| 111 } | |
| 112 | |
| 113 @Override | |
| 114 protected void onNil(UnmarshallingContext.State state) { | |
| 115 // let the receiver add this to the lister | |
| 116 state.target = null; | |
| 117 } | |
| 118 } | |
| 119 } |
