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Diffstat (limited to '')
-rw-r--r-- | sca-java-1.x/tags/1.6.1-RC1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6.1-RC1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java b/sca-java-1.x/tags/1.6.1-RC1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java new file mode 100644 index 0000000000..38efd288cb --- /dev/null +++ b/sca-java-1.x/tags/1.6.1-RC1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java @@ -0,0 +1,131 @@ +/* + * 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.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.WrapperHandler; +import org.apache.tuscany.sca.databinding.XMLTypeHelper; +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.Operation; +import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl; +import org.apache.tuscany.sca.interfacedef.util.XMLType; +import org.w3c.dom.Document; + +/** + * JAXB DataBinding + * + * @version $Rev$ $Date$ + */ +public class JAXBDataBinding extends BaseDataBinding { + public static final String NAME = JAXBElement.class.getName(); + + 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"); + + private JAXBWrapperHandler wrapperHandler; + private JAXBTypeHelper xmlTypeHelper; + + public JAXBDataBinding() { + super(NAME, JAXBElement.class); + this.wrapperHandler = new JAXBWrapperHandler(); + this.xmlTypeHelper = new JAXBTypeHelper(); + } + + @Override + public boolean introspect(DataType dataType, Operation operation) { + 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, DataType dataType, Operation operation) { + try { + boolean isElement = false; + if (dataType == null) { + Class cls = arg.getClass(); + if (arg instanceof JAXBElement) { + isElement = true; + cls = ((JAXBElement)arg).getDeclaredType(); + } + dataType = new DataTypeImpl<XMLType>(NAME, cls, XMLType.UNKNOWN); + } + JAXBContext context = JAXBContextHelper.createJAXBContext(dataType); + arg = JAXBContextHelper.createJAXBElement(context, dataType, arg); + Document doc = DOMHelper.newDocument(); + context.createMarshaller().marshal(arg, doc); + Object value = context.createUnmarshaller().unmarshal(doc, dataType.getPhysical()); + if (isElement && value instanceof JAXBElement) { + return value; + } + return JAXBContextHelper.createReturnValue(context, dataType, value); + } catch (Exception e) { + throw new IllegalArgumentException(e); + } + } + + @Override + public WrapperHandler getWrapperHandler() { + return wrapperHandler; + } + + @Override + public XMLTypeHelper getXMLTypeHelper() { + // return new JAXBTypeHelper(); + return xmlTypeHelper; + } + +} |