From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001 From: lresende Date: Thu, 26 Sep 2013 20:33:20 +0000 Subject: 2.0 branch for possible maintenance release git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68 --- .../sca/databinding/jaxb/JAXBDataBinding.java | 160 +++++++++++++++++++++ 1 file changed, 160 insertions(+) create mode 100644 sca-java-2.x/branches/2.0/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java (limited to 'sca-java-2.x/branches/2.0/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java') diff --git a/sca-java-2.x/branches/2.0/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java b/sca-java-2.x/branches/2.0/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java new file mode 100644 index 0000000000..1eb78caeb1 --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBDataBinding.java @@ -0,0 +1,160 @@ +/* + * 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 static org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper.getValueType; + +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.common.xml.dom.DOMHelper; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.databinding.BaseDataBinding; +import org.apache.tuscany.sca.databinding.WrapperHandler; +import org.apache.tuscany.sca.databinding.XMLTypeHelper; +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; + private DOMHelper domHelper; + private JAXBContextHelper contextHelper; + + public JAXBDataBinding(ExtensionPointRegistry registry) { + super(NAME, JAXBElement.class); + this.wrapperHandler = new JAXBWrapperHandler(); + this.xmlTypeHelper = new JAXBTypeHelper(registry); + this.domHelper = DOMHelper.getInstance(registry); + contextHelper = JAXBContextHelper.getInstance(registry); + } + + @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; + } + + // If DataType is already an XMLType it might have an element name that we wish to preserve + // but check that we're not overwriting the UNKNOWN type + Object logical = dataType.getLogical(); + if (logical instanceof XMLType && + logical != XMLType.UNKNOWN) { + ((XMLType)logical).setTypeName(xmlType.getTypeName()); + } else { + dataType.setLogical(xmlType); + } + + dataType.setDataBinding(NAME); + return true; + } + + @SuppressWarnings("unchecked") + @Override + public Object copy(Object arg, + DataType sourceDataType, + DataType targetDataType, + Operation sourceOperation, + Operation targetOperation) { + try { + boolean isElement = false; + if (sourceDataType == null) { + Class cls = arg.getClass(); + if (arg instanceof JAXBElement) { + isElement = true; + cls = ((JAXBElement)arg).getDeclaredType(); + } + sourceDataType = new DataTypeImpl(NAME, cls, XMLType.UNKNOWN); + } + JAXBContext context = contextHelper.createJAXBContext(sourceDataType); + arg = JAXBContextHelper.createJAXBElement(context, sourceDataType, arg); + Document doc = domHelper.newDocument(); + context.createMarshaller().marshal(arg, doc); + + Object value; + if (targetDataType != null && targetDataType.getPhysical() != sourceDataType.getPhysical()) { + JAXBContext targetContext = contextHelper.createJAXBContext(targetDataType); + value = targetContext.createUnmarshaller().unmarshal(doc, getValueType(targetDataType.getPhysical())); + } else { + value = context.createUnmarshaller().unmarshal(doc, getValueType(sourceDataType.getPhysical())); + } + + if (isElement && value instanceof JAXBElement) { + return value; + } + return JAXBContextHelper.createReturnValue(context, sourceDataType, value); + } catch (Exception e) { + throw new IllegalArgumentException(e); + } + } + + @Override + public WrapperHandler getWrapperHandler() { + return wrapperHandler; + } + + @Override + public XMLTypeHelper getXMLTypeHelper() { + // return new JAXBTypeHelper(); + return xmlTypeHelper; + } + +} -- cgit v1.2.3