ohair@286: /* ohair@286: * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. ohair@286: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. ohair@286: * ohair@286: * This code is free software; you can redistribute it and/or modify it ohair@286: * under the terms of the GNU General Public License version 2 only, as ohair@286: * published by the Free Software Foundation. Oracle designates this ohair@286: * particular file as subject to the "Classpath" exception as provided ohair@286: * by Oracle in the LICENSE file that accompanied this code. ohair@286: * ohair@286: * This code is distributed in the hope that it will be useful, but WITHOUT ohair@286: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ohair@286: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ohair@286: * version 2 for more details (a copy is included in the LICENSE file that ohair@286: * accompanied this code). ohair@286: * ohair@286: * You should have received a copy of the GNU General Public License version ohair@286: * 2 along with this work; if not, write to the Free Software Foundation, ohair@286: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. ohair@286: * ohair@286: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA ohair@286: * or visit www.oracle.com if you need additional information or have any ohair@286: * questions. ohair@286: */ ohair@286: ohair@286: package com.sun.xml.internal.bind.v2.runtime.property; ohair@286: ohair@286: import java.io.IOException; ohair@286: ohair@286: import javax.xml.stream.XMLStreamException; ohair@286: ohair@286: import com.sun.xml.internal.bind.api.AccessorException; ohair@286: import com.sun.xml.internal.bind.v2.model.core.PropertyKind; ohair@286: import com.sun.xml.internal.bind.v2.model.runtime.RuntimeElementPropertyInfo; ohair@286: import com.sun.xml.internal.bind.v2.model.runtime.RuntimeTypeRef; ohair@286: import com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl; ohair@286: import com.sun.xml.internal.bind.v2.runtime.Name; ohair@286: import com.sun.xml.internal.bind.v2.runtime.XMLSerializer; ohair@286: import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor; ohair@286: import com.sun.xml.internal.bind.v2.runtime.reflect.TransducedAccessor; ohair@286: import com.sun.xml.internal.bind.v2.runtime.unmarshaller.ChildLoader; ohair@286: import com.sun.xml.internal.bind.v2.runtime.unmarshaller.DefaultValueLoaderDecorator; ohair@286: import com.sun.xml.internal.bind.v2.runtime.unmarshaller.LeafPropertyLoader; ohair@286: import com.sun.xml.internal.bind.v2.runtime.unmarshaller.LeafPropertyXsiLoader; ohair@286: import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader; ohair@286: import com.sun.xml.internal.bind.v2.runtime.unmarshaller.XsiNilLoader; ohair@286: import com.sun.xml.internal.bind.v2.util.QNameMap; ohair@286: ohair@286: import org.xml.sax.SAXException; ohair@286: ohair@286: /** ohair@286: * {@link Property} that contains a leaf value. ohair@286: * ohair@286: * @author Kohsuke Kawaguchi (kk@kohsuke.org) ohair@286: */ ohair@286: final class SingleElementLeafProperty extends PropertyImpl { ohair@286: ohair@286: private final Name tagName; ohair@286: private final boolean nillable; ohair@286: private final Accessor acc; ohair@286: private final String defaultValue; ohair@286: private final TransducedAccessor xacc; ohair@286: private final boolean improvedXsiTypeHandling; ohair@286: ohair@286: public SingleElementLeafProperty(JAXBContextImpl context, RuntimeElementPropertyInfo prop) { ohair@286: super(context, prop); ohair@286: RuntimeTypeRef ref = prop.getTypes().get(0); ohair@286: tagName = context.nameBuilder.createElementName(ref.getTagName()); ohair@286: assert tagName != null; ohair@286: nillable = ref.isNillable(); ohair@286: defaultValue = ref.getDefaultValue(); ohair@286: this.acc = prop.getAccessor().optimize(context); ohair@286: ohair@286: xacc = TransducedAccessor.get(context, ref); ohair@286: assert xacc != null; ohair@286: ohair@286: improvedXsiTypeHandling = context.improvedXsiTypeHandling; ohair@286: } ohair@286: ohair@286: public void reset(BeanT o) throws AccessorException { ohair@286: acc.set(o, null); ohair@286: } ohair@286: ohair@286: public String getIdValue(BeanT bean) throws AccessorException, SAXException { ohair@286: return xacc.print(bean).toString(); ohair@286: } ohair@286: ohair@286: @Override ohair@286: public void serializeBody(BeanT o, XMLSerializer w, Object outerPeer) throws SAXException, AccessorException, IOException, XMLStreamException { ohair@286: boolean hasValue = xacc.hasValue(o); ohair@286: ohair@286: Object obj = null; ohair@286: ohair@286: try { ohair@286: obj = acc.getUnadapted(o); ohair@286: } catch (AccessorException ae) { ohair@286: ; // noop ohair@286: } ohair@286: ohair@286: Class valueType = acc.getValueType(); ohair@286: ohair@286: // check for different type than expected. If found, add xsi:type declaration ohair@286: if (improvedXsiTypeHandling && !acc.isAdapted() && ohair@286: (obj!=null) && ( !obj.getClass().equals(valueType))&& ohair@286: (!valueType.isPrimitive() && acc.isValueTypeAbstractable() )) { ohair@286: ohair@286: w.startElement(tagName, outerPeer); ohair@286: w.childAsXsiType(obj, fieldName, w.grammar.getBeanInfo(valueType), nillable); ohair@286: w.endElement(); ohair@286: ohair@286: } else { // current type is expected ohair@286: ohair@286: if (hasValue) { ohair@286: xacc.writeLeafElement(w, tagName, o, fieldName); ohair@286: } else if (nillable) { ohair@286: w.startElement(tagName, null); ohair@286: w.writeXsiNilTrue(); ohair@286: w.endElement(); ohair@286: } ohair@286: } ohair@286: } ohair@286: ohair@286: public void buildChildElementUnmarshallers(UnmarshallerChain chain, QNameMap handlers) { ohair@286: Loader l = new LeafPropertyLoader(xacc); ohair@286: if (defaultValue != null) ohair@286: l = new DefaultValueLoaderDecorator(l, defaultValue); ohair@286: if (nillable || chain.context.allNillable) ohair@286: l = new XsiNilLoader.Single(l, acc); ohair@286: ohair@286: // LeafPropertyXsiLoader doesn't work well with nillable elements ohair@286: if (improvedXsiTypeHandling && !nillable) ohair@286: l = new LeafPropertyXsiLoader(l, xacc, acc); ohair@286: ohair@286: handlers.put(tagName, new ChildLoader(l, null)); ohair@286: } ohair@286: ohair@286: ohair@286: public PropertyKind getKind() { ohair@286: return PropertyKind.ELEMENT; ohair@286: } ohair@286: ohair@286: @Override ohair@286: public Accessor getElementPropertyAccessor(String nsUri, String localName) { ohair@286: if (tagName.equals(nsUri, localName)) ohair@286: return acc; ohair@286: else ohair@286: return null; ohair@286: } ohair@286: }