diff options
Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/branches/2.0-Beta1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBWrapperHandler.java | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/sca-java-2.x/branches/2.0-Beta1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBWrapperHandler.java b/sca-java-2.x/branches/2.0-Beta1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBWrapperHandler.java new file mode 100644 index 0000000000..a1f4c12c8f --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBWrapperHandler.java @@ -0,0 +1,151 @@ +/* + * 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 java.lang.reflect.Method; +import java.security.AccessController; +import java.security.PrivilegedActionException; +import java.security.PrivilegedExceptionAction; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collection; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.WrapperHandler; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.util.ElementInfo; +import org.apache.tuscany.sca.interfacedef.util.WrapperInfo; + +/** + * JAXB WrapperHandler implementation + * + * @version $Rev$ $Date$ + */ +public class JAXBWrapperHandler implements WrapperHandler<Object> { + private JAXBWrapperHelper helper = new JAXBWrapperHelper(); + + public Object create(Operation operation, boolean input) { + WrapperInfo wrapperInfo = operation.getWrapper(); + ElementInfo element = input ? wrapperInfo.getInputWrapperElement() : wrapperInfo.getOutputWrapperElement(); + final Class<?> wrapperClass = input ? wrapperInfo.getInputWrapperClass() : wrapperInfo.getOutputWrapperClass(); + try { + if (wrapperClass == null) { + return null; + } + return AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() { + public Object run() throws Exception { + return wrapperClass.newInstance(); + } + }); + } catch (PrivilegedActionException e) { + throw new TransformationException(e); + } + } + + public void setChildren(Object wrapper, Object[] childObjects, Operation operation, boolean input) { + List<ElementInfo> childElements = + input ? operation.getWrapper().getInputChildElements() : operation.getWrapper().getOutputChildElements(); + List<String> childNames = new ArrayList<String>(); + Map<String, Object> values = new HashMap<String, Object>(); + for (int i = 0; i < childElements.size(); i++) { + ElementInfo e = childElements.get(i); + String name = e.getQName().getLocalPart(); + childNames.add(name); + values.put(name, childObjects[i]); + } + // Get the property descriptor map + Map<String, JAXBPropertyDescriptor> pdMap = null; + try { + pdMap = XMLRootElementUtil.createPropertyDescriptorMap(wrapper.getClass()); + } catch (Throwable t) { + throw new JAXBWrapperException(t); + } + helper.wrap(wrapper, childNames, values, pdMap); + } + + public void setChild(Object wrapper, int i, ElementInfo childElement, Object value) { + Object wrapperValue = wrapper; + Class<?> wrapperClass = wrapperValue.getClass(); + + // FIXME: We probably should use the jaxb-reflection to handle the properties + try { + String prop = childElement.getQName().getLocalPart(); + boolean collection = (value instanceof Collection); + Method getter = null; + for (Method m : wrapperClass.getMethods()) { + Class<?>[] paramTypes = m.getParameterTypes(); + if (paramTypes.length == 1 && m.getName().equals("set" + capitalize(prop))) { + m.invoke(wrapperValue, new Object[] {value}); + return; + } + if (collection && paramTypes.length == 0 && m.getName().equals("get" + capitalize(prop))) { + getter = m; + } + } + if (getter != null && Collection.class.isAssignableFrom(getter.getReturnType())) { + ((Collection)getter.invoke(wrapperValue)).addAll((Collection)value); + } + + } catch (Throwable e) { + throw new TransformationException(e); + } + } + + private static String capitalize(String name) { + char first = Character.toUpperCase(name.charAt(0)); + return first + name.substring(1); + } + + /** + * @see org.apache.tuscany.sca.databinding.WrapperHandler#getChildren(java.lang.Object, Operation, boolean) + */ + public List getChildren(Object wrapper, Operation operation, boolean input) { + List<ElementInfo> childElements = input? operation.getWrapper().getInputChildElements(): + operation.getWrapper().getOutputChildElements(); + + List<String> childNames = new ArrayList<String>(); + for (ElementInfo e : childElements) { + childNames.add(e.getQName().getLocalPart()); + } + return Arrays.asList(helper.unwrap(wrapper, childNames)); + } + + /** + * @see org.apache.tuscany.sca.databinding.WrapperHandler#getWrapperType(Operation, boolean) + */ + public DataType getWrapperType(Operation operation, boolean input) { + WrapperInfo wrapper = operation.getWrapper(); + DataType dt = input ? wrapper.getInputWrapperType() : wrapper.getOutputWrapperType(); + return dt; + } + + /** + * @see org.apache.tuscany.sca.databinding.WrapperHandler#isInstance(java.lang.Object, Operation, boolean) + */ + public boolean isInstance(Object wrapper, Operation operation, boolean input) { + Class<?> wrapperClass = + input ? operation.getWrapper().getInputWrapperClass() : operation.getWrapper().getOutputWrapperClass(); + return wrapperClass == null ? false : wrapperClass.isInstance(wrapper); + } +} |