public Object deserialize(String xml) throws Exception {
DOMDocument domDocument = new DOMDocument(xml);
root = domDocument.getRootNode();
if ((classPackage == null) || (rootPath == null))
classLoaderStrategy =
getClassLoaderStrategy(root.lookupNamespaceURI(nsPrefix) + "." + root.getLocalName());
else {
currentPackage = classPackage;
classLoaderStrategy =
ClassLoaderUtil.getClassLoader(
ClassLoaderUtil.FILE_SYSTEM_CLASS_LOADER, new String[] {rootPath});
}
return deserialize(root, true, true);
}
private Object deserialize(Node node, boolean setProperty, boolean popBean) throws Exception {
Object object = null;
currentType = null;
currentNode = node;
currentName = node.getNodeName();
boolean isNull = false;
NamedNodeMap attrs = node.getAttributes();
String arrayType = null;
for (int i = 0; i < attrs.getLength(); i++) {
String nodeName = attrs.item(i).getNodeName();
String nodeValue = attrs.item(i).getNodeValue();
if (nodeName.equals(NamespaceConstants.NSPREFIX_SCHEMA_XSI + ":" + Constants.ATTR_TYPE))
currentType = new StringBuffer(nodeValue).delete(0, nodeValue.indexOf(':') + 1).toString();
else if (nodeName.equals(
NamespaceConstants.NSPREFIX_SOAP_ENCODING + ":" + Constants.ATTR_ARRAY_TYPE))
arrayType = new StringBuffer(nodeValue).delete(0, nodeValue.indexOf(':') + 1).toString();
else if (nodeName.equals(NamespaceConstants.NSPREFIX_SCHEMA_XSI + ":null"))
isNull = nodeValue.equals("true");
}
Class cls = null;
if (currentType != null) cls = getXsdTypeClass(currentType);
// Handle array, Vector, ArrayList, LinkedList, Hashtable,
// Properties, and HashMap data types
if ((cls != null)
&& ((cls == java.lang.reflect.Array.class)
|| (cls == Vector.class)
|| (cls == ArrayList.class)
|| (cls == LinkedList.class)
|| (cls == Hashtable.class)
|| (cls == Properties.class)
|| (cls == HashMap.class)
|| (cls == SortedMap.class))) {
parentNode = currentNode;
String name = node.getNodeName();
// Handle arrays
if (cls == java.lang.reflect.Array.class) {
int a = arrayType.indexOf("[");
int b = arrayType.indexOf("]");
String s = arrayType.substring(a + 1, b);
int arrayLen = Integer.valueOf(s).intValue();
arrayType = arrayType.substring(0, a);
// check if the array element is a standard Java class
Class arrayClass = getXsdTypeClass(arrayType);
// otherwise try to get the class of the bean
if (arrayClass == null)
arrayClass = getClassOfBean((ClassLoader) classLoaderStrategy, arrayType);
object = java.lang.reflect.Array.newInstance(arrayClass, arrayLen);
} else {
// Construct the list or map type
Constructor ct = cls.getConstructor((Class[]) null);
object = ct.newInstance((Object[]) null);
}
// deserialize the elements of the array, list, or map
NodeList childNodes = node.getChildNodes();
int arrayIndex = -1;
Node childNode = null;
Object nodeObj = null;
for (int i = 0; i < childNodes.getLength(); i++) {
childNode = childNodes.item(i);
if (childNode.getNodeType() == Node.ELEMENT_NODE) {
if ((cls == java.lang.reflect.Array.class)
|| (cls == Vector.class)
|| (cls == ArrayList.class)
|| (cls == LinkedList.class)) {
nodeObj = deserialize(childNode, false, true);
if (nodeObj != null) {
if (cls == java.lang.reflect.Array.class)
java.lang.reflect.Array.set(object, ++arrayIndex, nodeObj);
else ((List) object).add(nodeObj);
}
} else if ((cls == Hashtable.class)
|| (cls == Properties.class)
|| (cls == HashMap.class)
|| (cls == SortedMap.class)) {
if (childNode.getLocalName().equals("item")) {
NodeList htNodes = childNode.getChildNodes();
if (htNodes.getLength() == 2) {
Object hashKey = deserialize(htNodes.item(0), false, false);
Object hashValue = deserialize(htNodes.item(1), false, true);
((Map) object).put(hashKey, hashValue);
}
}
}
}
}
setBeanProperty(name, object);
// Handle everything else (primitives & POJOs)
} else {
// recurse on each of the child nodes
NodeList childNodes = node.getChildNodes();
if ((childNodes != null) && (childNodes.getLength() > 0)) {
for (int i = 0; i < childNodes.getLength(); i++) {
Node childNode = childNodes.item(i);
if (childNode.getNodeType() == Node.ELEMENT_NODE) {
if (currentType != null)
createObject(
node,
currentName,
currentPackage,
currentType,
childNode.getNodeValue(),
setProperty);
parentNode = node;
object = deserialize(childNode, true, true);
} else if ((childNode.getNodeType() == Node.TEXT_NODE) && (currentType != null)) {
object =
createObject(
node,
currentName,
currentPackage,
currentType,
childNode.getNodeValue(),
setProperty);
}
currentType = null;
}
} else {
if (!isNull)
object = createObject(node, currentName, currentPackage, currentType, null, setProperty);
}
if (node.getParentNode() != parentNode) {
parentNode = node.getParentNode();
if (popBean) {
Object bean = popBeanOffStack();
if (bean != null) object = bean;
}
}
}
return object;
}
private Object createObject(
Node node, String name, String classPackage, String type, String value, boolean setProperty) {
Bean parentBean = null;
if (beansStack.size() > 0) parentBean = (Bean) beansStack.peek();
Object object = null;
// param is either an XSD type or a bean,
// check if it can be converted to an XSD type
XSDatatype dt = null;
try {
dt = DatatypeFactory.getTypeByName(type);
} catch (DatatypeException dte) {
// the type is not a valid XSD data type
}
// convert null value to default
if ((dt != null) && (value == null)) {
Class objType = dt.getJavaObjectType();
if (objType == String.class) value = "";
else if ((objType == java.math.BigInteger.class)
|| (objType == Long.class)
|| (objType == Integer.class)
|| (objType == Short.class)
|| (objType == Byte.class)) value = "0";
else if ((objType == java.math.BigDecimal.class)
|| (objType == Double.class)
|| (objType == Float.class)) value = "0.0";
else if (objType == Boolean.class) value = "false";
else if (objType == java.util.Date.class) value = DateUtils.getCurrentDate();
else if (objType == java.util.Calendar.class) value = DateUtils.getCurrentDateTime();
}
// check whether the type was converted to an XSD datatype
if ((dt != null) && dt.isValid(value, null)) {
// create and return an XSD Java object (e.g. String, Integer, Boolean, etc)
object = dt.createJavaObject(value, null);
if (object instanceof java.util.Calendar) {
// check that the object is truly a Calendar
// because DatatypeFactory converts xsd:date
// types to GregorianCalendar instead of Date.
if (type.equals("date")) {
java.text.DateFormat df = new java.text.SimpleDateFormat("yyyy-MM-dd");
try {
object = df.parse(value);
} catch (java.text.ParseException pe) {
object = new java.util.Date();
}
}
}
} else {
// Create a bean object
if (topLevelBean == null) topLevelBean = parentBean;
object = pushBeanOnStack(classPackage, type);
// Check fields to see if this property is the 'value' for the object
Field[] fields = object.getClass().getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
if (fields[i].isAnnotationPresent(ObjectXmlAsValue.class)) {
try {
StringBuffer fieldName = new StringBuffer(fields[i].getName());
char c = fieldName.charAt(0);
if (c >= 'a' && c <= 'z') {
c += 'A' - 'a';
}
fieldName.setCharAt(0, c);
fieldName.insert(0, "set");
Method method =
object
.getClass()
.getMethod(fieldName.toString(), new Class[] {fields[i].getType()});
method.invoke(object, value);
break;
} catch (Exception e) {
System.err.println(e.getMessage());
}
}
}
NamedNodeMap nodeAttrs = node.getAttributes();
// iterate attributes and set field values for property attributes
for (int i = 0; i < nodeAttrs.getLength(); i++) {
String nodePrefix = nodeAttrs.item(i).getPrefix();
if (nodePrefix.equals(nsPrefix)) {
String nodeName = nodeAttrs.item(i).getLocalName();
String nodeValue = nodeAttrs.item(i).getNodeValue();
try {
Field field = object.getClass().getDeclaredField(nodeName);
if (field.isAnnotationPresent(ObjectXmlAsAttribute.class)) {
StringBuffer fieldName = new StringBuffer(field.getName());
char c = fieldName.charAt(0);
if (c >= 'a' && c <= 'z') {
c += 'A' - 'a';
}
fieldName.setCharAt(0, c);
fieldName.insert(0, "set");
Method method =
object.getClass().getMethod(fieldName.toString(), new Class[] {field.getType()});
if (field.getType() == String.class) method.invoke(object, nodeValue);
else if (field.getType() == Boolean.TYPE)
method.invoke(object, StringUtils.strToBool(nodeValue, "true"));
else if (field.getType() == Byte.TYPE)
method.invoke(object, Byte.valueOf(nodeValue).byteValue());
else if (field.getType() == Character.TYPE)
method.invoke(object, Character.valueOf(nodeValue.charAt(0)));
else if (field.getType() == Double.TYPE)
method.invoke(object, Double.valueOf(nodeValue).doubleValue());
else if (field.getType() == Float.TYPE)
method.invoke(object, Float.valueOf(nodeValue).floatValue());
else if (field.getType() == Integer.TYPE)
method.invoke(object, Integer.valueOf(nodeValue).intValue());
else if (field.getType() == Long.TYPE)
method.invoke(object, Long.valueOf(nodeValue).longValue());
else if (field.getType() == Short.TYPE)
method.invoke(object, Short.valueOf(nodeValue).shortValue());
}
} catch (Exception e) {
System.err.println(e.getMessage());
}
}
}
}
if ((parentBean != null) && (setProperty)) {
parentBean.setProperty(name, object);
}
return object;
}
