From d232b6a46e4225ff35a0123a5f5597da7592fc38 Mon Sep 17 00:00:00 2001 From: jsdelfino Date: Fri, 12 Sep 2008 21:54:50 +0000 Subject: Creating a branch for the equinox work. git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@694816 13f79535-47bb-0310-9956-ffa450edef68 --- .../DataBindingJavaInterfaceProcessor.java | 210 +++++++++++++++++++++ 1 file changed, 210 insertions(+) create mode 100644 branches/sca-equinox/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java (limited to 'branches/sca-equinox/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor') diff --git a/branches/sca-equinox/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java b/branches/sca-equinox/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java new file mode 100644 index 0000000000..e182b472d4 --- /dev/null +++ b/branches/sca-equinox/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java @@ -0,0 +1,210 @@ +/* + * 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.lang.annotation.Annotation; +import java.lang.reflect.Method; +import java.util.HashMap; +import java.util.HashSet; +import java.util.LinkedList; +import java.util.List; +import java.util.Map; +import java.util.Set; + +import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint; +import org.apache.tuscany.sca.databinding.WrapperHandler; +import org.apache.tuscany.sca.databinding.annotation.DataBinding; +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.JavaOperation; +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 DataBindingJavaInterfaceProcessor implements JavaInterfaceVisitor { + private static final String JAXB_DATABINDING = "javax.xml.bind.JAXBElement"; + private DataBindingExtensionPoint dataBindingRegistry; + + public DataBindingJavaInterfaceProcessor(DataBindingExtensionPoint dataBindingRegistry) { + super(); + this.dataBindingRegistry = dataBindingRegistry; + } + + public void visitInterface(JavaInterface javaInterface) throws InvalidInterfaceException { + if (!javaInterface.isRemotable()) { + return; + } + List operations = javaInterface.getOperations(); + processInterface(javaInterface, operations); + } + + private void processInterface(JavaInterface javaInterface, List operations) { + Class clazz = javaInterface.getJavaClass(); + DataBinding dataBinding = clazz.getAnnotation(DataBinding.class); + String dataBindingId = null; + boolean wrapperStyle = false; + if (dataBinding != null) { + dataBindingId = dataBinding.value(); + wrapperStyle = dataBinding.wrapped(); + } + + Map opMap = new HashMap(); + for (Operation op : javaInterface.getOperations()) { + opMap.put(op.getName(), op); + // In the case of @WebMethod, the method name can be different from the operation name + if (op instanceof JavaOperation) { + opMap.put(((JavaOperation)op).getJavaMethod().getName(), op); + } + if (dataBindingId != null) { + op.setDataBinding(dataBindingId); + op.setWrapperStyle(wrapperStyle); + } + } + for (Method method : clazz.getMethods()) { + if (method.getDeclaringClass() == Object.class) { + continue; + } + Operation operation = opMap.get(method.getName()); + if (operation == null) { // @WebMethod exclude=true + continue; + } + DataBinding methodDataBinding = clazz.getAnnotation(DataBinding.class); + if (methodDataBinding == null) { + methodDataBinding = dataBinding; + } + dataBindingId = null; + wrapperStyle = false; + if (dataBinding != null) { + dataBindingId = dataBinding.value(); + wrapperStyle = dataBinding.wrapped(); + operation.setDataBinding(dataBindingId); + operation.setWrapperStyle(wrapperStyle); + } + + // FIXME: We need a better way to identify simple java types + int i = 0; + for (org.apache.tuscany.sca.interfacedef.DataType d : operation.getInputType().getLogical()) { + if (d.getDataBinding() == null) { + d.setDataBinding(dataBindingId); + } + for (Annotation a : method.getParameterAnnotations()[i]) { + if (a.annotationType() == org.apache.tuscany.sca.databinding.annotation.DataType.class) { + String value = ((org.apache.tuscany.sca.databinding.annotation.DataType)a).value(); + d.setDataBinding(value); + } + } + dataBindingRegistry.introspectType(d, operation); + i++; + } + if (operation.getOutputType() != null) { + DataType d = operation.getOutputType(); + if (d.getDataBinding() == null) { + d.setDataBinding(dataBindingId); + } + org.apache.tuscany.sca.databinding.annotation.DataType dt = + method.getAnnotation(org.apache.tuscany.sca.databinding.annotation.DataType.class); + if (dt != null) { + d.setDataBinding(dt.value()); + } + dataBindingRegistry.introspectType(d, operation); + } + for (org.apache.tuscany.sca.interfacedef.DataType d : operation.getFaultTypes()) { + if (d.getDataBinding() == null) { + d.setDataBinding(dataBindingId); + } + // TODO: Handle exceptions + dataBindingRegistry.introspectType(d, operation); + } + + // JIRA: TUSCANY-842 + String db = operation.getDataBinding(); + if (db == null || JAXB_DATABINDING.equals(db)) { + assignOperationDataBinding(operation); + db = operation.getDataBinding(); + } + + // Introspect the wrapper data type + if (operation.getWrapper() != null) { + org.apache.tuscany.sca.databinding.DataBinding dbObj = + dataBindingRegistry.getDataBinding(db); + WrapperHandler handler = dbObj == null ? null : dbObj.getWrapperHandler(); + if (handler != null) { + WrapperInfo wrapper = operation.getWrapper(); + wrapper.setInputWrapperType(handler.getWrapperType(operation, true)); + wrapper.setOutputWrapperType(handler.getWrapperType(operation, false)); + } + if (dbObj != null && handler == null) { + // To avoid JAXB wrapper bean generation + WrapperInfo wrapper = operation.getWrapper(); + wrapper.setInputWrapperType(null); + wrapper.setOutputWrapperType(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 void assignOperationDataBinding(Operation operation) { + + Set dbs = new HashSet(); + + // Can't use DataType since operation.getInputType() returns: DataType> + List opDataTypes = new LinkedList(); + + opDataTypes.addAll(operation.getInputType().getLogical()); + opDataTypes.add(operation.getOutputType()); + for (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) { + operation.setDataBinding(dbs.iterator().next()); + } + } +} -- cgit v1.2.3