diff options
Diffstat (limited to 'sandbox/axis2-1.4/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java')
| -rw-r--r-- | sandbox/axis2-1.4/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/sandbox/axis2-1.4/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java b/sandbox/axis2-1.4/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java new file mode 100644 index 0000000000..a23773c30f --- /dev/null +++ b/sandbox/axis2-1.4/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java @@ -0,0 +1,235 @@ +/* + * 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.lang.reflect.Method; +import java.util.ArrayList; +import java.util.List; + +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.databinding.DataBinding; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.util.WrapperInfo; +import org.apache.tuscany.sca.interfacedef.util.XMLType; +import org.apache.tuscany.sdo.api.SDOUtil; + +import commonj.sdo.Type; +import commonj.sdo.helper.HelperContext; +import commonj.sdo.helper.TypeHelper; +import commonj.sdo.impl.HelperProvider; + +/** + * Helper class to get TypeHelper from the context + * + * @version $Rev$ $Date$ + */ +public final class SDOContextHelper { + private SDOContextHelper() { + } + + public static HelperContext getHelperContext(TransformationContext context) { + if (context == null) { + return getDefaultHelperContext(); + } + + HelperContext helperContext = (HelperContext)context.getMetadata().get(HelperContext.class.getName()); + if (helperContext != null) { + return helperContext; + } + helperContext = SDOUtil.createHelperContext(); + + boolean found = false; + Operation op = context.getSourceOperation(); + if (op != null) { + found = register(helperContext, op.getInputType()) || found; + found = register(helperContext, op.getOutputType()) || found; + WrapperInfo wrapper = op.getWrapper(); + if (wrapper != null) { + found = register(helperContext, wrapper.getInputWrapperClass()) || found; + found = register(helperContext, wrapper.getOutputWrapperClass()) || found; + } + } else { + found = register(helperContext, context.getSourceDataType()) || found; + } + + op = context.getTargetOperation(); + if (op != null) { + found = register(helperContext, op.getInputType()) || found; + found = register(helperContext, op.getOutputType()) || found; + WrapperInfo wrapper = op.getWrapper(); + if (wrapper != null) { + found = register(helperContext, wrapper.getInputWrapperClass()) || found; + found = register(helperContext, wrapper.getOutputWrapperClass()) || found; + } + } else { + found = register(helperContext, context.getTargetDataType()) || found; + } + + if (!found) { + helperContext = getDefaultHelperContext(); + } + + context.getMetadata().put(HelperContext.class.getName(), helperContext); + return helperContext; + + } + + public static HelperContext getHelperContext(Operation op) { + if (op == null) { + return getDefaultHelperContext(); + } + + HelperContext helperContext = SDOUtil.createHelperContext(); + + boolean found = false; + if (op != null) { + found = register(helperContext, op.getInputType()) || found; + found = register(helperContext, op.getOutputType()) || found; + WrapperInfo wrapper = op.getWrapper(); + if (wrapper != null) { + found = register(helperContext, wrapper.getInputWrapperClass()) || found; + found = register(helperContext, wrapper.getOutputWrapperClass()) || found; + } + } + if (!found) { + helperContext = getDefaultHelperContext(); + } + + return helperContext; + + } + + + /** + * @param helperContext + * @param dataType + * @return + */ + private static boolean register(HelperContext helperContext, DataType dataType) { + if (dataType == null) { + return false; + } + String db = dataType.getDataBinding(); + boolean found = false; + if (DataBinding.IDL_INPUT.equals(db) || DataBinding.IDL_OUTPUT.equals(db) + || DataBinding.IDL_FAULT.equals(db) + || SDODataBinding.NAME.equals(db)) { + Class javaType = dataType.getPhysical(); + found = register(helperContext, javaType); + if (dataType.getLogical() instanceof DataType) { + DataType logical = (DataType)dataType.getLogical(); + found = register(helperContext, logical.getPhysical()) || found; + } + if (dataType.getLogical() instanceof List) { + List types = (List)dataType.getLogical(); + for (Object type : types) { + if (type instanceof DataType) { + found = register(helperContext, ((DataType)type)) || found; + } + } + } + } + return found; + } + + /** + * FIXME: [rfeng] This is a hack to get the factory out a SDO class + * @param helperContext + * @param javaType + */ + + private static boolean register(HelperContext helperContext, Class javaType) { + if (javaType == null) { + return false; + } + try { + Type type = helperContext.getTypeHelper().getType(javaType); + if (type != null && (!type.isDataType())) { + Method method = type.getClass().getMethod("getEPackage", new Class[] {}); + Object factory = method.invoke(type, new Object[] {}); + method = factory.getClass().getMethod("register", new Class[] {HelperContext.class}); + method.invoke(factory, new Object[] {helperContext}); + return true; + } + return false; + } catch (Exception e) { + throw new TransformationException(e); + } + } + + public static HelperContext getDefaultHelperContext() { + // SDOUtil.createHelperContext(); + return HelperProvider.getDefaultContext(); + } + + public static QName getElement(TransformationContext context) { + if (context == null) { + return SDODataBinding.ROOT_ELEMENT; + } + DataType<?> dataType = context.getTargetDataType(); + Object logical = dataType.getLogical(); + QName elementName = null; + if (logical instanceof XMLType) { + XMLType xmlType = (XMLType)logical; + QName element = xmlType.getElementName(); + if (element != null) { + elementName = element; + } + } + if (elementName == null) { + // Try source type + dataType = context.getSourceDataType(); + logical = dataType.getLogical(); + if (logical instanceof XMLType) { + XMLType xmlType = (XMLType)logical; + QName element = xmlType.getElementName(); + if (element != null) { + elementName = element; + } + } + } + if (elementName != null) { + return elementName; + } else { + return SDODataBinding.ROOT_ELEMENT; + } + } + + public static String generateSchema(HelperContext context, Class<?>[] classes) { + TypeHelper typeHelper = context.getTypeHelper(); + List<Type> types = new ArrayList<Type>(); + for (Class<?> cls : classes) { + Type type = typeHelper.getType(cls); + if (type != null) { + types.add(type); + } + } + return generateSchema(context, types); + } + + public static String generateSchema(HelperContext context, List<Type> types) { + // FIXME: SDO throws IllegalArgumentException for types generated from existing XSDs + return context.getXSDHelper().generate(types); + } +} |