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Diffstat (limited to '')
-rw-r--r-- | sandbox/event/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDODataBinding.java | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/sandbox/event/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDODataBinding.java b/sandbox/event/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDODataBinding.java new file mode 100644 index 0000000000..0b58be9e41 --- /dev/null +++ b/sandbox/event/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDODataBinding.java @@ -0,0 +1,146 @@ +/* + * 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.sdo; + +import java.security.AccessController; +import java.security.PrivilegedAction; + +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.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.util.XMLType; +import org.apache.tuscany.sdo.api.SDOUtil; + +import commonj.sdo.DataObject; +import commonj.sdo.Type; +import commonj.sdo.helper.CopyHelper; +import commonj.sdo.helper.HelperContext; +import commonj.sdo.helper.XMLDocument; + +/** + * SDO Databinding + * + * @version $Rev$ $Date$ + */ +public class SDODataBinding extends BaseDataBinding { + public static final String NAME = DataObject.class.getName(); + + public static final String ROOT_NAMESPACE = "commonj.sdo"; + public static final QName ROOT_ELEMENT = new QName(ROOT_NAMESPACE, "dataObject"); + + private WrapperHandler<Object> wrapperHandler; + private XMLTypeHelper xmlTypeHelper; + + public SDODataBinding() { + super(NAME, DataObject.class); + wrapperHandler = new SDOWrapperHandler(); + xmlTypeHelper = new SDOTypeHelper(); + } + + @Override + public boolean introspect(DataType dataType, final Operation operation) { + final Class javaType = dataType.getPhysical(); + // Allow privileged access to read system properties. Requires PropertyPermission + // java.specification.version read in security policy. + final HelperContext context = AccessController.doPrivileged(new PrivilegedAction<HelperContext>() { + public HelperContext run() { + return SDOContextHelper.getHelperContext(operation); + } + }); + + Type type = context.getTypeHelper().getType(javaType); + if (type == null) { + // FIXME: Need a better to test dynamic SDO + if (DataObject.class.isAssignableFrom(javaType)) { + // Dynamic SDO + dataType.setDataBinding(getName()); + if (dataType.getLogical() == null) { + dataType.setLogical(XMLType.UNKNOWN); + } + return true; + } + return false; + } + if (type.isDataType()) { + // FIXME: Ignore simple types? + return false; + } + + // Found a SDO type, replace the default context with a private one + AccessController.doPrivileged(new PrivilegedAction<Object>() { + public Object run() { + if (context == SDOContextHelper.getDefaultHelperContext()) { + HelperContext newContext = SDOUtil.createHelperContext(); + SDOContextHelper.register(newContext, javaType); + if (operation != null) { + operation.getInputType().setMetaData(HelperContext.class, newContext); + } + } + return null; + } + }); + + String namespace = type.getURI(); + String name = context.getXSDHelper().getLocalName(type); + QName xmlType = new QName(namespace, name); + dataType.setDataBinding(getName()); + QName elementName = null; + Object logical = dataType.getLogical(); + if (logical instanceof XMLType) { + elementName = ((XMLType)logical).getElementName(); + } + dataType.setLogical(new XMLType(elementName, xmlType)); + + return true; + } + + @Override + public WrapperHandler getWrapperHandler() { + return wrapperHandler; + } + + @Override + public XMLTypeHelper getXMLTypeHelper() { + // return new SDOTypeHelper(); + return xmlTypeHelper; + } + + @Override + public Object copy(Object arg, DataType dataType, Operation operation) { + HelperContext context = SDOContextHelper.getHelperContext(operation); + CopyHelper copyHelper = context.getCopyHelper(); + if (arg instanceof XMLDocument) { + XMLDocument document = (XMLDocument)arg; + DataObject dataObject = copyHelper.copy(document.getRootObject()); + return context.getXMLHelper().createDocument(dataObject, + document.getRootElementURI(), + document.getRootElementName()); + } else if (arg instanceof DataObject) { + return context.getCopyHelper().copy((DataObject)arg); + } else { + return super.copy(arg, dataType, operation); + } + } + +} |