diff options
Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany')
12 files changed, 1353 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/BeanXMLStreamReaderImpl.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/BeanXMLStreamReaderImpl.java new file mode 100644 index 0000000000..359d0fa20d --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/BeanXMLStreamReaderImpl.java @@ -0,0 +1,313 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.databinding.jaxb; + +import java.lang.reflect.Array; +import java.lang.reflect.ParameterizedType; +import java.lang.reflect.Type; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collection; +import java.util.Collections; +import java.util.Comparator; +import java.util.HashMap; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Map.Entry; + +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.databinding.impl.SimpleTypeMapperImpl; +import org.apache.tuscany.sca.databinding.xml.SimpleXmlNodeImpl; +import org.apache.tuscany.sca.databinding.xml.XmlNode; +import org.apache.tuscany.sca.databinding.xml.XmlTreeStreamReaderImpl; +import org.apache.tuscany.sca.interfacedef.util.TypeInfo; +import org.jvnet.jaxb.reflection.model.annotation.RuntimeInlineAnnotationReader; +import org.jvnet.jaxb.reflection.model.core.Ref; +import org.jvnet.jaxb.reflection.model.impl.RuntimeModelBuilder; +import org.jvnet.jaxb.reflection.model.runtime.RuntimeClassInfo; +import org.jvnet.jaxb.reflection.model.runtime.RuntimePropertyInfo; +import org.jvnet.jaxb.reflection.model.runtime.RuntimeTypeInfoSet; +import org.jvnet.jaxb.reflection.runtime.IllegalAnnotationsException; +import org.jvnet.jaxb.reflection.runtime.JAXBContextImpl; + + + +/** + * @version $Rev$ $Date$ + */ +public class BeanXMLStreamReaderImpl extends XmlTreeStreamReaderImpl { + private final static Comparator<Accessor> COMPARATOR = new Comparator<Accessor>() { + public int compare(Accessor o1, Accessor o2) { + return o1.getName().compareTo(o2.getName()); + } + }; + + private final static String XSI_PREFIX = "xsi"; + private final static String XSI_NS = "http://www.w3.org/2001/XMLSchema-instance"; + + private final static XmlNode getXSIType(QName realType) { + QName xsiType = new QName(XSI_NS, "type", XSI_PREFIX); + String prefix = realType.getPrefix(); + String typeName = realType.getLocalPart(); + if (prefix != null && !prefix.equals("")) { + typeName = prefix + ":" + realType.getLocalPart(); + } + return new SimpleXmlNodeImpl(xsiType, XmlNode.Type.ATTRIBUTE); + } + + /** + * Represent a Map.Entry XML node + * @version $Rev$ $Date$ + */ + public static class MapEntryXmlNodeImpl extends SimpleXmlNodeImpl implements XmlNode { + private Map.Entry entry; + + public MapEntryXmlNodeImpl(Entry entry) { + super(new QName("", "entry"), entry); + this.entry = entry; + } + + public Iterator<XmlNode> children() { + List<XmlNode> nodes = new ArrayList<XmlNode>(); + XmlNode key = new BeanXmlNodeImpl(new QName("", "key"), entry.getKey()); + XmlNode value = new BeanXmlNodeImpl(new QName("", "value"), entry.getValue()); + nodes.add(key); + nodes.add(value); + return nodes.iterator(); + } + } + + public static class BeanXmlNodeImpl extends SimpleXmlNodeImpl implements XmlNode { + private static final Object[] NULL = null; + private static final SimpleTypeMapperImpl MAPPER = new SimpleTypeMapperImpl(); + + public BeanXmlNodeImpl(Object bean) { + super(getName(bean == null ? null : bean.getClass()), bean); + } + + public BeanXmlNodeImpl(QName name, Object bean) { + super(name, bean); + } + + private static boolean isSimpleType(Class<?> javaType) { + return SimpleTypeMapperImpl.getXMLType(javaType) != null; + } + + private static String getStringValue(Object o) { + if (o == null) { + return null; + } + TypeInfo info = SimpleTypeMapperImpl.getXMLType(o.getClass()); + if (info != null) { + return MAPPER.toXMLLiteral(info.getQName(), o, null); + } else { + return String.valueOf(o); + } + } + + public Iterator<XmlNode> children() { + if (name == null) { + return null; + } + if (value == null) { + return super.children(); + } + if (isSimpleType(value.getClass())) { + XmlNode textNode = new BeanXmlNodeImpl(null, value); + return Arrays.asList(textNode).iterator(); + } + if (Map.class.isAssignableFrom(value.getClass())) { + List<XmlNode> entries = new ArrayList<XmlNode>(); + Map map = (Map)value; + if (map != null) { + for (Object e : map.entrySet()) { + Map.Entry entry = (Map.Entry)e; + entries.add(new MapEntryXmlNodeImpl(entry)); + } + } + return entries.iterator(); + } + try { + Map<String, Accessor> accessorMap = getAccessors(value); + List<Accessor> accessorList = new ArrayList<Accessor>(accessorMap.values()); + Collections.sort(accessorList, COMPARATOR); + + List<XmlNode> props = new ArrayList<XmlNode>(); + for (Accessor accessor : accessorList) { + Class<?> pType = accessor.getType(); + + QName pName = new QName(name.getNamespaceURI(), accessor.getName()); + Object pValue = accessor.getValue(); + if (pType.isArray()) { + if (pValue != null) { + int i1 = Array.getLength(pValue); + for (int j = 0; j < i1; j++) { + Object o = Array.get(pValue, j); + props.add(new BeanXmlNodeImpl(pName, o)); + } + } else { + // TODO: How to handle null? + } + } else if (Collection.class.isAssignableFrom(pType)) { + Collection objList = (Collection)pValue; + if (objList != null && objList.size() > 0) { + for (Iterator j = objList.iterator(); j.hasNext();) { + Object o = j.next(); + props.add(new BeanXmlNodeImpl(pName, o)); + } + + } else { + // How to handle null + } + } else { + props.add(new BeanXmlNodeImpl(pName, pValue)); + } + } + return props.iterator(); + } catch (Exception e) { + throw new IllegalArgumentException(e); + } + } + + public QName getName() { + return name; + } + + public String getValue() { + return getStringValue(value); + } + + public static QName getName(Class<?> cls) { + if (cls == null) { + return null; + } + Package pkg = cls.getPackage(); + if (pkg == null) { + return new QName("", cls.getSimpleName()); + } + StringBuffer ns = new StringBuffer("http://"); + String[] names = pkg.getName().split("\\."); + for (int i = names.length - 1; i >= 0; i--) { + ns.append(names[i]); + if (i != 0) { + ns.append('.'); + } + } + ns.append('/'); + return new QName(ns.toString(), cls.getSimpleName()); + } + + } + + public BeanXMLStreamReaderImpl(QName name, Object bean) { + super(getXmlNode(name, bean)); + } + + private static BeanXmlNodeImpl getXmlNode(QName name, Object bean) { + BeanXmlNodeImpl root = null; + if (name != null) { + root = new BeanXmlNodeImpl(name, bean); + } else { + root = new BeanXmlNodeImpl(bean); + } + return root; + } + + public static interface Accessor { + String getName(); + + Class<?> getType(); + + Object getValue() throws Exception; + + void setValue(Object value) throws Exception; + } + + private static RuntimeTypeInfoSet create(Class... classes) throws Exception { + IllegalAnnotationsException.Builder errorListener = new IllegalAnnotationsException.Builder(); + RuntimeInlineAnnotationReader reader = new RuntimeInlineAnnotationReader(); + JAXBContextImpl context = + new JAXBContextImpl(classes, null, Collections.<Class, Class> emptyMap(), null, false, reader, false, false); + RuntimeModelBuilder builder = + new RuntimeModelBuilder(context, reader, Collections.<Class, Class> emptyMap(), null); + builder.setErrorHandler(errorListener); + for (Class c : classes) + builder.getTypeInfo(new Ref<Type, Class>(c)); + + RuntimeTypeInfoSet r = builder.link(); + errorListener.check(); + return r; + } + + private static class JAXBAccessor implements Accessor { + private Object target; + private RuntimePropertyInfo prop; + + public JAXBAccessor(Object target, RuntimePropertyInfo field) { + super(); + this.target = target; + this.prop = field; + } + + public String getName() { + return prop.getName(); + } + + public Object getValue() throws Exception { + return prop.getAccessor().get(target); + } + + public void setValue(Object value) throws Exception { + prop.getAccessor().set(target, value); + } + + public Class<?> getType() { + Type type = prop.getRawType(); + if (type instanceof Class) { + return (Class<?>)type; + } else if (type instanceof ParameterizedType) { + ParameterizedType pType = (ParameterizedType)type; + type = pType.getRawType(); + if (type instanceof Class) { + return (Class<?>)type; + } + } + return Object.class; + } + + } + + private static Map<String, Accessor> getAccessors(Object target) throws Exception { + if (target == null) { + return Collections.emptyMap(); + } + Map<String, Accessor> map = new HashMap<String, Accessor>(); + Class<?> type = target.getClass(); + RuntimeTypeInfoSet set = create(type); + RuntimeClassInfo clsInfo = (RuntimeClassInfo)set.getTypeInfo(type); + for (RuntimePropertyInfo f : clsInfo.getProperties()) { + map.put(f.getName(), new JAXBAccessor(target, f)); + } + return map; + } + +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2Node.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2Node.java new file mode 100644 index 0000000000..d1a64a782c --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2Node.java @@ -0,0 +1,72 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.databinding.jaxb; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.JAXBElement; +import javax.xml.bind.Marshaller; + +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; +import org.apache.tuscany.sca.databinding.impl.DOMHelper; +import org.w3c.dom.Document; +import org.w3c.dom.Node; + +public class JAXB2Node extends BaseTransformer<Object, Node> implements PullTransformer<Object, Node> { + + public Node transform(Object source, TransformationContext tContext) { +// if (source == null) { +// return null; +// } + try { + JAXBContext context = JAXBContextHelper.createJAXBContext(tContext, true); + Marshaller marshaller = context.createMarshaller(); + // FIXME: The default Marshaller doesn't support + // marshaller.getNode() + Document document = DOMHelper.newDocument(); + JAXBElement<?> jaxbElement = JAXBContextHelper.createJAXBElement(tContext.getSourceDataType(), source); + marshaller.marshal(jaxbElement, document); + return DOMHelper.adjustElementName(tContext, document.getDocumentElement()); + } catch (Exception e) { + throw new TransformationException(e); + } + } + + @Override + public Class getSourceType() { + return Object.class; + } + + @Override + public Class getTargetType() { + return Node.class; + } + + @Override + public int getWeight() { + return 30; + } + + @Override + public String getSourceDataBinding() { + return JAXBDataBinding.NAME; + } +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2SAX.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2SAX.java new file mode 100644 index 0000000000..12f44b479e --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2SAX.java @@ -0,0 +1,70 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.databinding.jaxb; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.JAXBElement; +import javax.xml.bind.Marshaller; + +import org.apache.tuscany.sca.databinding.PushTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; +import org.xml.sax.ContentHandler; + +/** + * @version $Rev$ $Date$ + */ +public class JAXB2SAX extends BaseTransformer<Object, ContentHandler> implements + PushTransformer<Object, ContentHandler> { + + @Override + protected Class getSourceType() { + return Object.class; + } + + @Override + protected Class getTargetType() { + return ContentHandler.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.PushTransformer#transform(java.lang.Object, java.lang.Object, org.apache.tuscany.sca.databinding.TransformationContext) + */ + public void transform(Object source, ContentHandler target, TransformationContext tContext) { + try { + JAXBContext context = JAXBContextHelper.createJAXBContext(tContext, true); + Marshaller marshaller = context.createMarshaller(); + JAXBElement<?> jaxbElement = JAXBContextHelper.createJAXBElement(tContext.getSourceDataType(), source); + marshaller.marshal(jaxbElement, target); + } catch (Exception e) { + throw new TransformationException(e); + } + } + + public int getWeight() { + return 20; + } + + @Override + public String getSourceDataBinding() { + return JAXBDataBinding.NAME; + } +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2String.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2String.java new file mode 100644 index 0000000000..d34ee8b13c --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2String.java @@ -0,0 +1,74 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.databinding.jaxb; + +import java.io.StringWriter; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.JAXBElement; +import javax.xml.bind.Marshaller; +import javax.xml.transform.stream.StreamResult; + +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; +import org.apache.tuscany.sca.databinding.xml.XMLStringDataBinding; + +public class JAXB2String extends BaseTransformer<Object, String> implements PullTransformer<Object, String> { + + public String transform(Object source, TransformationContext tContext) { + try { + JAXBContext context = JAXBContextHelper.createJAXBContext(tContext, true); + Marshaller marshaller = context.createMarshaller(); + StringWriter writer = new StringWriter(); + StreamResult result = new StreamResult(writer); + JAXBElement<?> jaxbElement = JAXBContextHelper.createJAXBElement(tContext.getSourceDataType(), source); + marshaller.marshal(jaxbElement, result); + return writer.toString(); + } catch (Exception e) { + throw new TransformationException(e); + } + } + + @Override + public Class getSourceType() { + return Object.class; + } + + @Override + public Class getTargetType() { + return String.class; + } + + @Override + public int getWeight() { + return 30; + } + + @Override + public String getSourceDataBinding() { + return JAXBDataBinding.NAME; + } + + @Override + public String getTargetDataBinding() { + return XMLStringDataBinding.NAME; + } +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2XMLStreamReader.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2XMLStreamReader.java new file mode 100644 index 0000000000..8aaee84f80 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXB2XMLStreamReader.java @@ -0,0 +1,73 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.databinding.jaxb; + +import javax.xml.bind.JAXBElement; +import javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamReader; + +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; + +public class JAXB2XMLStreamReader extends BaseTransformer<Object, XMLStreamReader> implements + PullTransformer<Object, XMLStreamReader> { + + public JAXB2XMLStreamReader() { + super(); + } + + public XMLStreamReader transform(Object source, TransformationContext context) { + if (source == null) { + return null; + } + try { + QName name = null; + Object bean = source; + JAXBElement<?> element = JAXBContextHelper.createJAXBElement(context.getSourceDataType(), source); + name = element.getName(); + bean = element.getValue(); + BeanXMLStreamReaderImpl reader = new BeanXMLStreamReaderImpl(name, bean); + return reader; + } catch (Exception e) { + throw new TransformationException(e); + } + } + + @Override + public Class getSourceType() { + return Object.class; + } + + @Override + public Class getTargetType() { + return XMLStreamReader.class; + } + + @Override + public int getWeight() { + return 10; + } + + @Override + public String getTargetDataBinding() { + return JAXBDataBinding.NAME; + } +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBContextHelper.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBContextHelper.java new file mode 100644 index 0000000000..4a240b3f55 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBContextHelper.java @@ -0,0 +1,182 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.databinding.jaxb; + +import java.beans.Introspector; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.JAXBElement; +import javax.xml.bind.JAXBException; +import javax.xml.bind.annotation.XmlEnum; +import javax.xml.bind.annotation.XmlRootElement; +import javax.xml.bind.annotation.XmlSchema; +import javax.xml.bind.annotation.XmlType; +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.SimpleTypeMapperImpl; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.util.XMLType; + +public class JAXBContextHelper { + // TODO: Do we need to set them for source and target? + public static final String JAXB_CLASSES = "jaxb.classes"; + + public static final String JAXB_CONTEXT_PATH = "jaxb.contextPath"; + + private JAXBContextHelper() { + } + + public static JAXBContext createJAXBContext(TransformationContext tContext, boolean source) throws JAXBException { + if (tContext == null) + throw new TransformationException("JAXB context is not set for the transformation."); + + DataType<?> dataType = source ? tContext.getSourceDataType() : tContext.getTargetDataType(); + // FIXME: We should check the context path or classes + // FIXME: What should we do if JAXB is an intermediate node? + + // String contextPath = null; + JAXBContext context = null; + Class<?> cls = getJavaType(dataType); + + context = JAXBContext.newInstance(cls); + + if (context == null) { + throw new TransformationException("JAXB context is not set for the transformation."); + } + return context; + } + + @SuppressWarnings("unchecked") + public static JAXBElement createJAXBElement(DataType dataType, Object value) { + if (value instanceof JAXBElement) { + return (JAXBElement)value; + } else { + Class type = dataType.getPhysical(); + Object logical = dataType.getLogical(); + QName elementName = JAXBDataBinding.ROOT_ELEMENT; + if (logical instanceof XMLType) { + XMLType xmlType = (XMLType)logical; + QName element = xmlType.getElementName(); + if (element != null) { + elementName = element; + } else { + /** + * Set the declared type to Object.class so that xsi:type + * will be produced + */ + type = Object.class; + } + } else { + type = Object.class; + } + return new JAXBElement(elementName, type, value); + } + } + + @SuppressWarnings("unchecked") + public static Object createReturnValue(DataType dataType, Object value) { + Class<?> cls = getJavaType(dataType); + if (cls == JAXBElement.class) { + return createJAXBElement(dataType, value); + } else { + if (value instanceof JAXBElement) { + return ((JAXBElement)value).getValue(); + } else { + return value; + } + } + } + + public static Class<?> getJavaType(DataType<?> dataType) { + if (dataType == null) { + return null; + } + Class type = dataType.getPhysical(); + if (JAXBElement.class.isAssignableFrom(type)) { + type = Object.class; + } + if (type == Object.class && dataType.getLogical() instanceof XMLType) { + XMLType xType = (XMLType)dataType.getLogical(); + Class javaType = SimpleTypeMapperImpl.getJavaType(xType.getTypeName()); + if (javaType != null) { + type = javaType; + } + } + return type; + } + + public static XMLType getXmlTypeName(Class<?> javaType) { + if (javaType.isInterface()) { + // JAXB doesn't support interfaces + return null; + } + String namespace = null; + String name = null; + Package pkg = javaType.getPackage(); + if (pkg != null) { + XmlSchema schema = pkg.getAnnotation(XmlSchema.class); + if (schema != null) { + namespace = schema.namespace(); + } + } + + QName elementQName = null; + QName typeQName = null; + XmlRootElement rootElement = javaType.getAnnotation(XmlRootElement.class); + if (rootElement != null) { + String elementName = rootElement.name(); + String elementNamespace = rootElement.namespace(); + if (elementNamespace.equals("##default")) { + elementNamespace = namespace; + } + if (elementName.equals("##default")) { + elementName = Introspector.decapitalize(javaType.getSimpleName()); + } + elementQName = new QName(elementNamespace, elementName); + } + XmlType type = javaType.getAnnotation(XmlType.class); + if (type != null) { + String typeNamespace = type.namespace(); + String typeName = type.name(); + + if (typeNamespace.equals("##default")) { + // namespace is from the package + typeNamespace = namespace; + } + + if (typeName.equals("##default")) { + typeName = Introspector.decapitalize(javaType.getSimpleName()); + } + typeQName = new QName(typeNamespace, typeName); + } else { + XmlEnum xmlEnum = javaType.getAnnotation(XmlEnum.class); + if (xmlEnum != null) { + name = Introspector.decapitalize(javaType.getSimpleName()); + typeQName = new QName(namespace, name); + } + } + if (elementQName == null && typeQName == null) { + return null; + } + return new XMLType(elementQName, typeQName); + } + +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java new file mode 100644 index 0000000000..a8b98fc214 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java @@ -0,0 +1,106 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.databinding.jaxb; + +import java.lang.annotation.Annotation; +import java.lang.reflect.ParameterizedType; +import java.lang.reflect.Type; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.JAXBElement; +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.databinding.impl.BaseDataBinding; +import org.apache.tuscany.sca.databinding.impl.DOMHelper; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.util.XMLType; +import org.w3c.dom.Document; + +/** + * JAXB DataBinding + */ +public class JAXBDataBinding extends BaseDataBinding { + public static final String NAME = JAXBElement.class.getName(); + public static final String[] ALIASES = new String[] {"jaxb"}; + + public static final String ROOT_NAMESPACE = "http://tuscany.apache.org/xmlns/sca/databinding/jaxb/1.0"; + public static final QName ROOT_ELEMENT = new QName(ROOT_NAMESPACE, "root"); + + public JAXBDataBinding() { + super(NAME, ALIASES, JAXBElement.class); + } + + @Override + public boolean introspect(DataType dataType, Annotation[] annotations) { + Class javaType = dataType.getPhysical(); + if (JAXBElement.class.isAssignableFrom(javaType)) { + Type type = javaType.getGenericSuperclass(); + if (type instanceof ParameterizedType) { + ParameterizedType parameterizedType = ((ParameterizedType)type); + Type rawType = parameterizedType.getRawType(); + if (rawType == JAXBElement.class) { + Type actualType = parameterizedType.getActualTypeArguments()[0]; + if (actualType instanceof Class) { + XMLType xmlType = JAXBContextHelper.getXmlTypeName((Class)actualType); + dataType.setLogical(xmlType); + dataType.setDataBinding(NAME); + return true; + } + } + } + if (dataType.getLogical() == null) { + dataType.setLogical(XMLType.UNKNOWN); + } + dataType.setDataBinding(NAME); + return true; + } + + XMLType xmlType = JAXBContextHelper.getXmlTypeName(javaType); + if (xmlType == null) { + return false; + } + dataType.setLogical(xmlType); + dataType.setDataBinding(NAME); + return true; + } + + @SuppressWarnings("unchecked") + @Override + public Object copy(Object arg) { + try { + boolean isElement = false; + Class cls = arg.getClass(); + if (arg instanceof JAXBElement) { + isElement = true; + cls = ((JAXBElement)arg).getDeclaredType(); + } else { + arg = new JAXBElement(ROOT_ELEMENT, Object.class, arg); + } + JAXBContext context = JAXBContext.newInstance(cls); + Document doc = DOMHelper.newDocument(); + context.createMarshaller().marshal(arg, doc); + JAXBElement<?> element = context.createUnmarshaller().unmarshal(doc, cls); + return isElement ? element : element.getValue(); + } catch (Exception e) { + throw new IllegalArgumentException(e); + } + } + +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBWrapperHandler.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBWrapperHandler.java new file mode 100644 index 0000000000..c3e97a4818 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBWrapperHandler.java @@ -0,0 +1,175 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.databinding.jaxb; + +import java.lang.reflect.Method; +import java.util.ArrayList; +import java.util.List; + +import javax.xml.bind.JAXBElement; +import javax.xml.bind.annotation.XmlElementDecl; +import javax.xml.bind.annotation.XmlRegistry; +import javax.xml.bind.annotation.XmlType; +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.WrapperHandler; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl; +import org.apache.tuscany.sca.interfacedef.util.ElementInfo; +import org.apache.tuscany.sca.interfacedef.util.XMLType; + +/** + * JAXB WrapperHandler implementation + */ +public class JAXBWrapperHandler implements WrapperHandler<JAXBElement<?>> { + + public JAXBElement<?> create(ElementInfo element, TransformationContext context) { + try { + // FIXME: How do we map the global element to a factory? + String packageName = null; + String factoryClassName = packageName + ".ObjectFactory"; + ClassLoader classLoader = context != null ? context.getClassLoader() : null; + if (classLoader == null) { + //FIXME Understand why we need this, the classloader should be passed in + classLoader = Thread.currentThread().getContextClassLoader(); + } + Class<?> factoryClass = Class.forName(factoryClassName, true, classLoader); + assert factoryClass.isAnnotationPresent(XmlRegistry.class); + Object factory = factoryClass.newInstance(); + QName elementName = element.getQName(); + Method method = null; + for (Method m : factoryClass.getMethods()) { + XmlElementDecl xmlElement = m.getAnnotation(XmlElementDecl.class); + QName name = new QName(xmlElement.namespace(), xmlElement.name()); + if (xmlElement != null && name.equals(elementName)) { + method = m; + break; + } + } + if (method != null) { + Class typeClass = method.getParameterTypes()[0]; + Object value = typeClass.newInstance(); + return (JAXBElement<?>)method.invoke(factory, new Object[] {value}); + } else { + throw new TransformationException("ObjectFactory cannot be resolved."); + } + } catch (Exception e) { + throw new TransformationException(e); + } + } + + public void setChild(JAXBElement<?> wrapper, int i, ElementInfo childElement, Object value) { + Object wrapperValue = wrapper.getValue(); + Class<?> wrapperClass = wrapperValue.getClass(); + + XmlType xmlType = wrapperClass.getAnnotation(XmlType.class); + String[] properties = xmlType.propOrder(); + String property = properties[i]; + + try { + for (Method m : wrapperClass.getMethods()) { + if (m.getName().equals("set" + capitalize(property))) { + m.invoke(wrapperValue, new Object[] {value}); + return; + } + } + } catch (Throwable e) { + throw new TransformationException(e); + } + } + + private static String capitalize(String name) { + char first = Character.toUpperCase(name.charAt(0)); + return first + name.substring(1); + } + + /** + * @see org.apache.tuscany.sca.databinding.WrapperHandler#getChildren(java.lang.Object, List, TransformationContext) + */ + public List getChildren(JAXBElement<?> wrapper, List<ElementInfo> childElements, TransformationContext context) { + Object wrapperValue = wrapper.getValue(); + Class<?> wrapperClass = wrapperValue.getClass(); + + XmlType xmlType = wrapperClass.getAnnotation(XmlType.class); + String[] properties = xmlType.propOrder(); + List<Object> elements = new ArrayList<Object>(); + for (String p : properties) { + try { + Method method = wrapperClass.getMethod("get" + capitalize(p), (Class[])null); + Object value = method.invoke(wrapperValue, (Object[])null); + elements.add(value); + } catch (Throwable e) { + throw new TransformationException(e); + } + } + return elements; + } + + /** + * @see org.apache.tuscany.sca.databinding.WrapperHandler#getWrapperType(org.apache.tuscany.sca.interfacedef.util.ElementInfo, List, org.apache.tuscany.sca.databinding.TransformationContext) + */ + public DataType getWrapperType(ElementInfo element, List<ElementInfo> childElements, TransformationContext context) { + try { + // FIXME: How do we map the global element to a factory? + String packageName = null; + String factoryClassName = packageName + ".ObjectFactory"; + ClassLoader classLoader = context != null ? context.getClassLoader() : null; + if (classLoader == null) { + //FIXME Understand why we need this, the classloader should be passed in + classLoader = Thread.currentThread().getContextClassLoader(); + } + Class<?> factoryClass = Class.forName(factoryClassName, true, classLoader); + assert factoryClass.isAnnotationPresent(XmlRegistry.class); + QName elementName = element.getQName(); + Method method = null; + for (Method m : factoryClass.getMethods()) { + XmlElementDecl xmlElement = m.getAnnotation(XmlElementDecl.class); + QName name = new QName(xmlElement.namespace(), xmlElement.name()); + if (xmlElement != null && name.equals(elementName)) { + method = m; + break; + } + } + if (method != null) { + Class typeClass = method.getParameterTypes()[0]; + DataType<XMLType> wrapperType = + new DataTypeImpl<XMLType>(JAXBDataBinding.NAME, typeClass, new XMLType(element)); + return wrapperType; + } + + return null; + } catch (Throwable e) { + return null; + } + } + + /** + * @see org.apache.tuscany.sca.databinding.WrapperHandler#isInstance(java.lang.Object, org.apache.tuscany.sca.interfacedef.util.ElementInfo, java.util.List, org.apache.tuscany.sca.databinding.TransformationContext) + */ + public boolean isInstance(Object wrapper, + ElementInfo element, + List<ElementInfo> childElements, + TransformationContext context) { + // TODO: Implement the logic + return true; + } +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/Node2JAXB.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/Node2JAXB.java new file mode 100644 index 0000000000..05e420f1c6 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/Node2JAXB.java @@ -0,0 +1,69 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.databinding.jaxb; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.Unmarshaller; + +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; +import org.w3c.dom.Node; + +public class Node2JAXB extends BaseTransformer<Node, Object> implements PullTransformer<Node, Object> { + + public Node2JAXB() { + super(); + } + + public Object transform(Node source, TransformationContext context) { + if (source == null) + return null; + try { + JAXBContext jaxbContext = JAXBContextHelper.createJAXBContext(context, false); + Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); + Object result = unmarshaller.unmarshal(source, JAXBContextHelper.getJavaType(context.getTargetDataType())); + return JAXBContextHelper.createReturnValue(context.getTargetDataType(), result); + } catch (Exception e) { + throw new TransformationException(e); + } + } + + @Override + public Class getSourceType() { + return Node.class; + } + + @Override + public Class getTargetType() { + return Object.class; + } + + @Override + public int getWeight() { + return 30; + } + + @Override + public String getTargetDataBinding() { + return JAXBDataBinding.NAME; + } + +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/Reader2JAXB.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/Reader2JAXB.java new file mode 100644 index 0000000000..61b3075539 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/Reader2JAXB.java @@ -0,0 +1,70 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.databinding.jaxb; + +import java.io.Reader; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.Unmarshaller; +import javax.xml.transform.stream.StreamSource; + +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; + +public class Reader2JAXB extends BaseTransformer<Reader, Object> implements + PullTransformer<Reader, Object> { + + public Object transform(final Reader source, final TransformationContext context) { + if (source == null) { + return null; + } + try { + JAXBContext jaxbContext = JAXBContextHelper.createJAXBContext(context, false); + Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); + StreamSource streamSource = new StreamSource(source); + Object result = unmarshaller.unmarshal(streamSource, JAXBContextHelper.getJavaType(context.getTargetDataType())); + return JAXBContextHelper.createReturnValue(context.getTargetDataType(), result); + } catch (Exception e) { + throw new TransformationException(e); + } + } + + @Override + public Class getSourceType() { + return Reader.class; + } + + @Override + public Class getTargetType() { + return Object.class; + } + + @Override + public int getWeight() { + return 30; + } + + @Override + public String getTargetDataBinding() { + return JAXBDataBinding.NAME; + } + +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/String2JAXB.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/String2JAXB.java new file mode 100644 index 0000000000..79e8dc027f --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/String2JAXB.java @@ -0,0 +1,76 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.databinding.jaxb; + +import java.io.StringReader; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.Unmarshaller; +import javax.xml.transform.stream.StreamSource; + +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; +import org.apache.tuscany.sca.databinding.xml.XMLStringDataBinding; + +public class String2JAXB extends BaseTransformer<String, Object> implements + PullTransformer<String, Object> { + + public Object transform(final String source, final TransformationContext context) { + if (source == null) { + return null; + } + try { + JAXBContext jaxbContext = JAXBContextHelper.createJAXBContext(context, false); + Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); + StreamSource streamSource = new StreamSource(new StringReader(source)); + Object result = unmarshaller.unmarshal(streamSource, JAXBContextHelper.getJavaType(context.getTargetDataType())); + return JAXBContextHelper.createReturnValue(context.getTargetDataType(), result); + } catch (Exception e) { + throw new TransformationException(e); + } + } + + @Override + public Class getSourceType() { + return String.class; + } + + @Override + public Class getTargetType() { + return Object.class; + } + + @Override + public int getWeight() { + return 30; + } + + @Override + public String getSourceDataBinding() { + return XMLStringDataBinding.NAME; + } + + @Override + public String getTargetDataBinding() { + return JAXBDataBinding.NAME; + } + +} diff --git a/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/XMLStreamReader2JAXB.java b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/XMLStreamReader2JAXB.java new file mode 100644 index 0000000000..ef3112eb22 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/XMLStreamReader2JAXB.java @@ -0,0 +1,73 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.databinding.jaxb; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.Unmarshaller; +import javax.xml.stream.XMLStreamReader; + +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; + +public class XMLStreamReader2JAXB extends BaseTransformer<XMLStreamReader, Object> implements + PullTransformer<XMLStreamReader, Object> { + + public XMLStreamReader2JAXB() { + super(); + } + + public Object transform(XMLStreamReader source, TransformationContext context) { + if (source == null) { + return null; + } + try { + JAXBContext jaxbContext = JAXBContextHelper.createJAXBContext(context, false); + Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); + // FIXME: [rfeng] If the java type is Object.class, the unmarshalled result will be + // a DOM Node + Object result = unmarshaller.unmarshal(source, JAXBContextHelper.getJavaType(context.getTargetDataType())); + source.close(); + return JAXBContextHelper.createReturnValue(context.getTargetDataType(), result); + } catch (Exception e) { + throw new TransformationException(e); + } + } + + @Override + public Class getSourceType() { + return XMLStreamReader.class; + } + + @Override + public Class getTargetType() { + return Object.class; + } + + @Override + public int getWeight() { + return 10; + } + + @Override + public String getTargetDataBinding() { + return JAXBDataBinding.NAME; + } +} |