diff options
Diffstat (limited to 'java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/javabeans/XML2JavaBeanTransformer.java')
| -rw-r--r-- | java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/javabeans/XML2JavaBeanTransformer.java | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/javabeans/XML2JavaBeanTransformer.java b/java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/javabeans/XML2JavaBeanTransformer.java deleted file mode 100644 index 6a30605f0f..0000000000 --- a/java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/javabeans/XML2JavaBeanTransformer.java +++ /dev/null @@ -1,329 +0,0 @@ -/* - * 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.javabeans; - -import java.lang.reflect.Array; -import java.lang.reflect.Constructor; -import java.lang.reflect.Field; -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; -import java.util.ArrayList; -import java.util.Hashtable; -import java.util.Iterator; -import java.util.List; -import java.util.Map; - -import javax.xml.namespace.QName; - -import org.apache.tuscany.sca.databinding.PullTransformer; -import org.apache.tuscany.sca.databinding.TransformationContext; -import org.apache.tuscany.sca.databinding.impl.BaseTransformer; -import org.apache.tuscany.sca.databinding.impl.SimpleTypeMapperImpl; -import org.apache.tuscany.sca.interfacedef.util.XMLType; - -/** - * Transformer to convert data from XML to JavaBean - * - * @version $Rev$ $Date$ - */ -public abstract class XML2JavaBeanTransformer<T> extends BaseTransformer<T, Object> implements - PullTransformer<T, Object> { - - public static final String SET = "set"; - public static final QName QNAME_MESSAGE = new QName("message"); - - protected SimpleTypeMapperImpl mapper; - - public XML2JavaBeanTransformer() { - this.mapper = new SimpleTypeMapperImpl(); - } - - @Override - public int getWeight() { - return JavaBeansDataBinding.HEAVY_WEIGHT; - } - - public Object transform(T source, TransformationContext context) { - //FIXME why is the logical type sometimes a Class instead of an XMLType? - if (context.getSourceDataType().getLogical() instanceof XMLType) { - XMLType xmlType = (XMLType) context.getSourceDataType().getLogical(); - return toJavaObject(xmlType.getTypeName(), getRootElement(source), context); - } else { - return toJavaObject(null, getRootElement(source), context); - } - } - - public Object toJavaObject(QName xmlType, T xmlElement, TransformationContext context) { - if (xmlType != null && mapper.isSimpleXSDType(xmlType)) { - return mapper.toJavaObject(xmlType, getText(xmlElement), context); - } else { - Class<?> javaType = (Class<?>)context.getTargetDataType().getPhysical(); - return createJavaObject(xmlElement, javaType, context); - } - } - - @SuppressWarnings("unchecked") - private <L> L createJavaObject(T element, Class<L> javaType, TransformationContext context) - throws XML2JavaMapperException { - if (isTextOnly(element)) { - return (L) mapper.toJavaObject(mapper.getXMLType(javaType).getQName(), - getText(element), - context); - } else { - String fieldName = null; - try { - L javaInstance; - T detailMsg = null; - if (Throwable.class.isAssignableFrom(javaType)) { - T msgElement = getFirstChildWithName(element, QNAME_MESSAGE); - if (msgElement != null && isTextOnly(msgElement)) { - detailMsg = msgElement; // skip this when handling child elements - Constructor constructor = javaType.getConstructor(new Class[] {String.class}); - javaInstance = (L)constructor.newInstance(new Object[] {getText(detailMsg)}); - } else { - javaInstance = javaType.newInstance(); - } - } else { - javaInstance = javaType.newInstance(); - } - Map<Field, List<Object>> arrayFields = new Hashtable<Field, List<Object>>(); - Map<Method, List<Object>> arraySetters = new Hashtable<Method, List<Object>>(); - - for (Iterator<T> childElements = getChildElements(element); childElements.hasNext(); ) { - T childElement = childElements.next(); - if (!isTextElement(childElement) && childElement != detailMsg) { - fieldName = getElementName(childElement); - try { - Field javaField = javaType.getField(fieldName); - setFieldValue(javaInstance, - javaField, - childElement, - arrayFields, - context); - - } catch (NoSuchFieldException e1) { - setFieldValueUsingSetter(javaType, - javaInstance, - fieldName, - childElement, - arraySetters, - context); - } - } - } - - setArrayValues(javaInstance, arrayFields, arraySetters); - return javaInstance; - } catch (Exception e2) { - XML2JavaMapperException xml2JavaEx = new XML2JavaMapperException(e2); - xml2JavaEx.setJavaType(javaType); - xml2JavaEx.setJavaFieldName(fieldName); - throw xml2JavaEx; - } - } - } - - private void setFieldValue(Object javaInstance, - Field javaField, - T fieldValue, - Map<Field, List<Object>> arrayFields, - TransformationContext context) throws IllegalAccessException { - Class<?> javaFieldType = (Class<?>) javaField.getType(); - - if (javaFieldType.isArray()) { - Class<?> componentType = javaFieldType.getComponentType(); - List<Object> fldValueArray = arrayFields.get(javaField); - if (fldValueArray == null) { - fldValueArray = new ArrayList<Object>(); - arrayFields.put(javaField, fldValueArray); - } - fldValueArray.add(createJavaObject(fieldValue, componentType, context)); - } else { - javaField.setAccessible(true); - javaField.set(javaInstance, createJavaObject(fieldValue, javaFieldType, context)); - } - } - - private void setFieldValueUsingSetter(Class javaType, - Object javaInstance, - String fieldName, - T fieldValue, - Map<Method, List<Object>> arraySetters, - TransformationContext context) throws IllegalAccessException, - InvocationTargetException { - char firstChar = Character.toUpperCase(fieldName.charAt(0)); - StringBuilder methodName = new StringBuilder(SET + fieldName); - methodName.setCharAt(SET.length(), firstChar); - boolean methodNotFound = true; - - for (int methodCount = 0; methodNotFound && methodCount < javaType.getMethods().length; ++methodCount) { - Method aMethod = javaType.getMethods()[methodCount]; - if (aMethod.getName().equals(methodName.toString()) - && aMethod.getParameterTypes().length == 1) { - Class<?> paramType = aMethod.getParameterTypes()[0]; - - if (paramType.isArray()) { - Class<?> componentType = paramType.getComponentType(); - List<Object> setterValueArray = arraySetters.get(aMethod); - if (setterValueArray == null) { - setterValueArray = new ArrayList<Object>(); - arraySetters.put(aMethod, setterValueArray); - } - setterValueArray.add(createJavaObject(fieldValue, componentType, context)); - } else { - aMethod.invoke(javaInstance, new Object[] {createJavaObject(fieldValue, - paramType, - context)}); - } - methodNotFound = false; - } - } - - if (methodNotFound) { - XML2JavaMapperException xml2JavaEx = - new XML2JavaMapperException("No field or setter method to configure xml data"); - xml2JavaEx.setJavaFieldName(fieldName); - xml2JavaEx.setJavaType(javaType); - throw xml2JavaEx; - } - } - - private void setArrayValues(Object javaInstance, - Map<Field, List<Object>> arrayFields, - Map<Method, List<Object>> arraySetters) throws IllegalAccessException, - InvocationTargetException { - if (arrayFields.size() > 0) { - for (Field javaField : arrayFields.keySet()) { - javaField.setAccessible(true); - - if (javaField.getType().getComponentType().isPrimitive()) { - javaField.set(javaInstance, createPrimitiveArray(javaField.getType() - .getComponentType(), - arrayFields.get(javaField))); - } else { - javaField.set(javaInstance, - createNonPrimitiveArray(javaField.getType().getComponentType(), - arrayFields.get(javaField))); - } - } - } - - if (arraySetters.size() > 0) { - for (Method aMethod : arraySetters.keySet()) { - Class<?> paramType = aMethod.getParameterTypes()[0]; - if (paramType.getComponentType().isPrimitive()) { - aMethod.invoke(javaInstance, - new Object[] {createPrimitiveArray(paramType.getComponentType(), - arraySetters.get(aMethod))}); - } else { - aMethod.invoke(javaInstance, - new Object[] {createNonPrimitiveArray(paramType.getComponentType(), - arraySetters.get(aMethod))}); - } - } - } - } - - private Object createNonPrimitiveArray(Class fieldType, List values) { - Object objectArray = Array.newInstance(fieldType, values.size()); - for (int count = 0; count < values.size(); ++count) { - Array.set(objectArray, count, values.get(count)); - } - return objectArray; - } - - private Object createPrimitiveArray(Class fieldType, List values) { - if (fieldType.isPrimitive()) { - if (fieldType.getName().equals("int")) { - int[] primitiveValues = new int[values.size()]; - for (int count = 0; count < values.size(); ++count) { - primitiveValues[count] = ((Integer) values.get(count)).intValue(); - } - return primitiveValues; - } else if (fieldType.getName().equals("float")) { - float[] primitiveValues = new float[values.size()]; - for (int count = 0; count < values.size(); ++count) { - primitiveValues[count] = ((Float) values.get(count)).floatValue(); - } - return primitiveValues; - } else if (fieldType.getName().equals("boolean")) { - boolean[] primitiveValues = new boolean[values.size()]; - for (int count = 0; count < values.size(); ++count) { - primitiveValues[count] = ((Boolean) values.get(count)).booleanValue(); - } - return primitiveValues; - } else if (fieldType.getName().equals("char")) { - char[] primitiveValues = new char[values.size()]; - for (int count = 0; count < values.size(); ++count) { - primitiveValues[count] = ((Character) values.get(count)).charValue(); - } - return primitiveValues; - } else if (fieldType.getName().equals("byte")) { - byte[] primitiveValues = new byte[values.size()]; - for (int count = 0; count < values.size(); ++count) { - primitiveValues[count] = ((Byte) values.get(count)).byteValue(); - } - return primitiveValues; - } else if (fieldType.getName().equals("short")) { - short[] primitiveValues = new short[values.size()]; - for (int count = 0; count < values.size(); ++count) { - primitiveValues[count] = ((Short) values.get(count)).shortValue(); - } - return primitiveValues; - } else if (fieldType.getName().equals("long")) { - long[] primitiveValues = new long[values.size()]; - for (int count = 0; count < values.size(); ++count) { - primitiveValues[count] = ((Long) values.get(count)).longValue(); - } - return primitiveValues; - } else if (fieldType.getName().equals("double")) { - double[] primitiveValues = new double[values.size()]; - for (int count = 0; count < values.size(); ++count) { - primitiveValues[count] = ((Double) values.get(count)).doubleValue(); - } - return primitiveValues; - } - } - return values; - } - - public abstract String getText(T source) throws XML2JavaMapperException; - - public abstract Iterator<T> getChildElements(T parent) throws XML2JavaMapperException; - - public abstract String getElementName(T element) throws XML2JavaMapperException; - - public abstract boolean isTextElement(T element) throws XML2JavaMapperException; - - public abstract boolean isTextOnly(T element) throws XML2JavaMapperException; - - public abstract T getFirstChildWithName(T element, QName name) throws XML2JavaMapperException; - - public abstract T getRootElement(T element) throws XML2JavaMapperException; - - @Override - public Class<Object> getTargetType() { - return Object.class; - } - - @Override - public String getTargetDataBinding() { - return JavaBeansDataBinding.NAME; - } -} |