| /* |
| * 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.core.databinding.processor; |
| |
| import java.util.HashSet; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.tuscany.sca.databinding.DataBinding; |
| import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint; |
| import org.apache.tuscany.sca.databinding.WrapperHandler; |
| import org.apache.tuscany.sca.databinding.javabeans.JavaBeansDataBinding; |
| import org.apache.tuscany.sca.databinding.javabeans.SimpleJavaDataBinding; |
| import org.apache.tuscany.sca.interfacedef.DataType; |
| import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException; |
| import org.apache.tuscany.sca.interfacedef.Operation; |
| import org.apache.tuscany.sca.interfacedef.java.JavaInterface; |
| import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor; |
| import org.apache.tuscany.sca.interfacedef.util.WrapperInfo; |
| |
| /** |
| * The databinding annotation processor for java interfaces |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class WrapperJavaInterfaceProcessor implements JavaInterfaceVisitor { |
| private static final String JAXB_DATABINDING = "javax.xml.bind.JAXBElement"; |
| private DataBindingExtensionPoint dataBindingRegistry; |
| |
| public WrapperJavaInterfaceProcessor(DataBindingExtensionPoint dataBindingRegistry) { |
| super(); |
| this.dataBindingRegistry = dataBindingRegistry; |
| } |
| |
| public void visitInterface(JavaInterface javaInterface) throws InvalidInterfaceException { |
| if (!javaInterface.isRemotable()) { |
| return; |
| } |
| for (Operation operation : javaInterface.getOperations()) { |
| WrapperInfo inputWrapperInfo = operation.getInputWrapper(); |
| WrapperInfo outputWrapperInfo = operation.getOutputWrapper(); |
| if (inputWrapperInfo == null || outputWrapperInfo == null) { |
| continue; |
| } |
| // JIRA: TUSCANY-824 |
| String db = inputWrapperInfo.getDataBinding(); |
| if (db == null || JAXB_DATABINDING.equals(db)) { |
| db = assignOperationDataBinding(operation); |
| } |
| |
| // Introspect the wrapper data type |
| DataBinding dbObj = dataBindingRegistry.getDataBinding(db); |
| WrapperHandler handler = dbObj == null ? null : dbObj.getWrapperHandler(); |
| if (handler != null) { |
| inputWrapperInfo.setWrapperType(handler.getWrapperType(operation, true)); |
| // TUSCANY-3804: handle output wrapper separately |
| //outputWrapperInfo.setWrapperType(handler.getWrapperType(operation, false)); |
| } |
| if (dbObj != null && handler == null) { |
| // To avoid JAXB wrapper bean generation |
| inputWrapperInfo.setWrapperType(null); |
| // TUSCANY-3804: handle output wrapper separately |
| //outputWrapperInfo.setWrapperType(null); |
| } |
| |
| // TUSCANY-3804: handle output wrapper separately |
| db = outputWrapperInfo.getDataBinding(); |
| if (db == null || JAXB_DATABINDING.equals(db)) { |
| db = assignOutputDataBinding(operation); |
| } |
| |
| // Introspect the wrapper data type |
| dbObj = dataBindingRegistry.getDataBinding(db); |
| handler = dbObj == null ? null : dbObj.getWrapperHandler(); |
| if (handler != null) { |
| outputWrapperInfo.setWrapperType(handler.getWrapperType(operation, false)); |
| } |
| if (dbObj != null && handler == null) { |
| // To avoid JAXB wrapper bean generation |
| outputWrapperInfo.setWrapperType(null); |
| } |
| } |
| } |
| |
| /* |
| * Assigns an operation DB if one of the input types, output type, fault types has a non-default DB. |
| * However, if two of the input types, output type, fault types have two different non-default DBs |
| * ( e.g. SDO and JAXB), then we do nothing to the operation DB. |
| * |
| * The method logic assumes the JavaBeans DataBinding is the default |
| */ |
| private String assignOperationDataBinding(Operation operation) { |
| |
| Set<String> dbs = new HashSet<String>(); |
| |
| // Can't use DataType<?> since operation.getInputType() returns: DataType<List<DataType>> |
| List<DataType> opDataTypes = new LinkedList<DataType>(); |
| |
| opDataTypes.addAll(operation.getInputType().getLogical()); |
| // TUSCANY-3804: handle output wrapper separately |
| //opDataTypes.add(operation.getOutputType()); |
| /* |
| for (DataType<DataType> ft : operation.getFaultTypes()) { |
| opDataTypes.add(ft.getLogical()); |
| } |
| */ |
| |
| for (DataType<?> d : opDataTypes) { |
| if (d != null) { |
| String dataBinding = d.getDataBinding(); |
| if ("java:array".equals(dataBinding)) { |
| dataBinding = ((DataType)d.getLogical()).getDataBinding(); |
| } |
| if (dataBinding != null) { |
| dbs.add(dataBinding); |
| } |
| } |
| } |
| |
| dbs.remove(JavaBeansDataBinding.NAME); |
| dbs.remove(SimpleJavaDataBinding.NAME); |
| |
| if (dbs.size() == 1) { |
| String db = dbs.iterator().next(); |
| operation.getInputWrapper().setDataBinding(db); |
| return db; |
| } else { |
| return operation.getInputWrapper().getDataBinding(); |
| } |
| } |
| |
| // TUSCANY-3804: handle output wrapper separately |
| private String assignOutputDataBinding(Operation operation) { |
| String db = null; |
| DataType dt = operation.getOutputType(); |
| if (dt != null) { |
| db = dt.getDataBinding(); |
| if ("java:array".equals(db)) { |
| db = ((DataType)dt.getLogical()).getDataBinding(); |
| } |
| } |
| if (db != null && |
| !JavaBeansDataBinding.NAME.equals(db) && |
| !SimpleJavaDataBinding.NAME.equals(db)) { |
| operation.getOutputWrapper().setDataBinding(db); |
| return db; |
| } else { |
| return operation.getOutputWrapper().getDataBinding(); |
| } |
| } |
| } |