/**
* Examines a property's type to see which method should be used to parse the property's value.
*
* @param desc The description of the property
* @param element The XML element containing the property value
* @return The value stored in the element
* @throws IOException If there is an error reading the document
*/
public Object getObjectValue(PropertyDescriptor desc, Element element) throws IOException {
// Find out what kind of property it is
Class type = desc.getPropertyType();
// If it's an array, get the base type
if (type.isArray()) {
type = type.getComponentType();
}
// For native types, object wrappers for natives, and strings, use the
// basic parse routine
if (type.equals(Integer.TYPE)
|| type.equals(Long.TYPE)
|| type.equals(Short.TYPE)
|| type.equals(Byte.TYPE)
|| type.equals(Boolean.TYPE)
|| type.equals(Float.TYPE)
|| type.equals(Double.TYPE)
|| Integer.class.isAssignableFrom(type)
|| Long.class.isAssignableFrom(type)
|| Short.class.isAssignableFrom(type)
|| Byte.class.isAssignableFrom(type)
|| Boolean.class.isAssignableFrom(type)
|| Float.class.isAssignableFrom(type)
|| Double.class.isAssignableFrom(type)
|| String.class.isAssignableFrom(type)) {
return readBasicType(type, element);
} else if (java.util.Date.class.isAssignableFrom(type)) {
// If it's a date, use the date parser
return readDate(element);
} else {
try {
// If it's an object, create a new instance of the object (it should
// be a bean, or there will be trouble)
Object newOb = type.newInstance();
// Copy the XML element into the bean
readObject(newOb, element);
return newOb;
} catch (InstantiationException exc) {
throw new IOException(
"Error creating object for " + desc.getName() + ": " + exc.toString());
} catch (IllegalAccessException exc) {
throw new IOException(
"Error creating object for " + desc.getName() + ": " + exc.toString());
}
}
}
protected void getBeanElementProperties(Element element, Object bean, PropertyDescriptor pd)
throws IntrospectionException, IllegalAccessException {
Element propertyElement = null;
Class classOfProperty = pd.getPropertyType();
Object[] argsNone = {};
// If the property is "class" and the type is java.lang.Class.class then
// this is the class of the bean, which we've already encoded.
// In this special case, return null.
if (!((pd.getName().charAt(0) == 'c') && pd.getName().equals("class"))
&& !classOfProperty.equals(java.lang.Class.class)) {
// Don't process property if it is in the list of fields to be ignored
boolean omittedField = false;
try {
Field field = bean.getClass().getDeclaredField(pd.getName());
omittedField = field.isAnnotationPresent(ObjectXmlOmitField.class);
} catch (NoSuchFieldException nsfe) {
}
if (!omittedField) {
String propertyName = formatName(pd.getName());
// Hereafter, we're trying to create a representation of the property
// based on the property's value.
// The very first thing we need to do is get the value of the
// property as an object. If we can't do that, we can't get any
// representation of the property at all.
Object propertyValue = null;
try {
Method getter = pd.getReadMethod();
if (getter != null) {
propertyValue = getter.invoke(bean, argsNone);
}
} catch (Exception ex) {
// couldn't get value
System.err.println(ex.getMessage());
}
// See if this property's value is something we can represent as a
// standard data type that can be converted to an xsd type,
// or if it's something that must be represented as a JavaBean.
if (propertyElement == null) {
PropertyEditor propEditor = PropertyEditorManager.findEditor(classOfProperty);
// If the property editor is not null, pass the property's
// value to the PropertyEditor, and then ask the PropertyEditor
// for the object and then attempt to convert it to a standard type.
if ((propEditor != null)
|| (classOfProperty == java.util.Calendar.class)
|| (classOfProperty == java.util.Date.class)) {
// The object is a standard type
// (e.g. a wrapper around a primitive type, a String, or a Date or Calendar object)
try {
Object object;
if ((classOfProperty == java.util.Calendar.class)
|| (classOfProperty == java.util.Date.class)) object = propertyValue;
else {
propEditor.setValue(propertyValue);
object = propEditor.getValue();
}
Element childElement = getStandardObjectElement(document, object, propertyName);
if (includeNullValues
|| !childElement
.getAttribute(
NamespaceConstants.NSPREFIX_SCHEMA_XSI
+ ":"
+ org.apache.axis.Constants.ATTR_TYPE)
.equals("anyType")) {
if (!includeTypeInfo) {
childElement.removeAttribute(
NamespaceConstants.NSPREFIX_SCHEMA_XSI
+ ":"
+ org.apache.axis.Constants.ATTR_TYPE);
childElement.removeAttribute(NamespaceConstants.NSPREFIX_SCHEMA_XSI + ":null");
}
try {
Field field = bean.getClass().getDeclaredField(propertyName);
if (field.isAnnotationPresent(ObjectXmlAsAttribute.class)) {
String attrName = null;
if (includeTypeInfo) attrName = nsPrefix + ":" + propertyName;
else attrName = propertyName;
element.setAttribute(attrName, childElement.getFirstChild().getNodeValue());
} else if (field.isAnnotationPresent(ObjectXmlAsValue.class))
element.setTextContent(childElement.getFirstChild().getNodeValue());
else element.appendChild(childElement);
} catch (NoSuchFieldException nfse) {
element.appendChild(childElement);
}
}
} catch (Exception e) {
}
} else {
// The object is not an XSD-encoded datatype, it must be a JavaBean
try {
String propertyTypeName = null;
if (propertyValue != null) {
// get object type
Class propertyType = pd.getPropertyType();
propertyTypeName = propertyType.getName();
}
getBeanElements(element, propertyName, propertyTypeName, propertyValue);
} catch (Exception e) {
}
}
}
}
}
}
/**
* Reads an XML element into a bean property by first locating the XML element corresponding to
* this property.
*
* @param ob The bean whose property is being set
* @param desc The property that will be set
* @param nodes The list of XML items that may contain the property
* @throws IOException If there is an error reading the document
*/
public void readProperty(Object ob, PropertyDescriptor desc, NodeList nodes, NamedNodeMap attrs)
throws IOException {
int numAttrs = attrs.getLength();
for (int i = 0; i < numAttrs; i++) {
// See if the attribute name matches the property name
if (namesMatch(desc.getName(), attrs.item(i).getNodeName())) {
// Get the method used to set this property
Method setter = desc.getWriteMethod();
// If this object has no setter, don't bother writing it
if (setter == null) continue;
// Get the value of the property
Object obValue = getObjectValue(desc, attrs.item(i).getNodeValue());
if (obValue != null) {
try {
// Set the property value
setter.invoke(ob, new Object[] {obValue});
} catch (InvocationTargetException exc) {
throw new IOException(
"Error setting property " + desc.getName() + ": " + exc.toString());
} catch (IllegalAccessException exc) {
throw new IOException(
"Error setting property " + desc.getName() + ": " + exc.toString());
}
}
return;
}
}
int numNodes = nodes.getLength();
Vector arrayBuild = null;
for (int i = 0; i < numNodes; i++) {
Node node = nodes.item(i);
// If this node isn't an element, skip it
if (!(node instanceof Element)) continue;
Element element = (Element) node;
// See if the tag name matches the property name
if (namesMatch(desc.getName(), element.getTagName())) {
// Get the method used to set this property
Method setter = desc.getWriteMethod();
// If this object has no setter, don't bother writing it
if (setter == null) continue;
// Get the value of the property
Object obValue = getObjectValue(desc, element);
// 070201 MAW: Modified from change submitted by Steve Poulson
if (setter.getParameterTypes()[0].isArray()) {
if (arrayBuild == null) {
arrayBuild = new Vector();
}
arrayBuild.addElement(obValue);
// 070201 MAW: Go ahead and read through the rest of the nodes in case
// another one matches the array. This has the effect of skipping
// over the "return" statement down below
continue;
}
if (obValue != null) {
try {
// Set the property value
setter.invoke(ob, new Object[] {obValue});
} catch (InvocationTargetException exc) {
throw new IOException(
"Error setting property " + desc.getName() + ": " + exc.toString());
} catch (IllegalAccessException exc) {
throw new IOException(
"Error setting property " + desc.getName() + ": " + exc.toString());
}
}
return;
}
}
// If we build a vector of array members, convert the vector into
// an array and save it in the property
if (arrayBuild != null) {
// Get the method used to set this property
Method setter = desc.getWriteMethod();
if (setter == null) return;
Object[] obValues = (Object[]) Array.newInstance(desc.getPropertyType(), arrayBuild.size());
arrayBuild.copyInto(obValues);
try {
setter.invoke(ob, new Object[] {obValues});
} catch (InvocationTargetException exc) {
throw new IOException("Error setting property " + desc.getName() + ": " + exc.toString());
} catch (IllegalAccessException exc) {
throw new IOException("Error setting property " + desc.getName() + ": " + exc.toString());
}
return;
}
}