/**
* This creates a new <code>{@link Document}</code> from an existing <code>InputStream</code> by
* letting a DOM parser handle parsing using the supplied stream.
*
* @param in <code>InputStream</code> to parse.
* @param validate <code>boolean</code> to indicate if validation should occur.
* @return <code>Document</code> - instance ready for use.
* @throws IOException when I/O error occurs.
* @throws JDOMException when errors occur in parsing.
*/
public Document getDocument(InputStream in, boolean validate) throws IOException, JDOMException {
try {
// Load the parser class
Class parserClass = Class.forName("org.apache.xerces.parsers.DOMParser");
Object parser = parserClass.newInstance();
// Set validation
Method setFeature =
parserClass.getMethod("setFeature", new Class[] {java.lang.String.class, boolean.class});
setFeature.invoke(
parser, new Object[] {"http://xml.org/sax/features/validation", new Boolean(validate)});
// Set namespaces true
setFeature.invoke(
parser, new Object[] {"http://xml.org/sax/features/namespaces", new Boolean(true)});
// Set the error handler
if (validate) {
Method setErrorHandler =
parserClass.getMethod("setErrorHandler", new Class[] {ErrorHandler.class});
setErrorHandler.invoke(parser, new Object[] {new BuilderErrorHandler()});
}
// Parse the document
Method parse = parserClass.getMethod("parse", new Class[] {org.xml.sax.InputSource.class});
parse.invoke(parser, new Object[] {new InputSource(in)});
// Get the Document object
Method getDocument = parserClass.getMethod("getDocument", null);
Document doc = (Document) getDocument.invoke(parser, null);
return doc;
} catch (InvocationTargetException e) {
Throwable targetException = e.getTargetException();
if (targetException instanceof org.xml.sax.SAXParseException) {
SAXParseException parseException = (SAXParseException) targetException;
throw new JDOMException(
"Error on line "
+ parseException.getLineNumber()
+ " of XML document: "
+ parseException.getMessage(),
e);
} else if (targetException instanceof IOException) {
IOException ioException = (IOException) targetException;
throw ioException;
} else {
throw new JDOMException(targetException.getMessage(), e);
}
} catch (Exception e) {
throw new JDOMException(e.getClass().getName() + ": " + e.getMessage(), e);
}
}
public void setFeature(String name, boolean value) throws ParserConfigurationException {
// fact.setFeature(name, value);
try {
invoke("setFeature", argsSetFeature, new Object[] {name, Boolean.valueOf(value)});
} catch (InvocationTargetException e) {
if (e.getCause() instanceof ParserConfigurationException) {
throw (ParserConfigurationException) e.getCause();
}
if (e.getCause() instanceof RuntimeException) {
throw (RuntimeException) e.getCause();
}
throw new RuntimeException(e);
}
}
public boolean getFeature(String name) throws ParserConfigurationException {
// return fact.getFeature(name);
try {
Object res = invoke("getFeatureccc", argsGetFeature, new Object[] {name});
return ((Boolean) res).booleanValue();
} catch (InvocationTargetException e) {
if (e.getCause() instanceof ParserConfigurationException) {
throw (ParserConfigurationException) e.getCause();
}
if (e.getCause() instanceof RuntimeException) {
throw (RuntimeException) e.getCause();
}
throw new RuntimeException(e);
}
}
/**
* Reads XML element(s) into an indexed bean property by first locating the XML element(s)
* 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 readIndexedProperty(
Object ob, IndexedPropertyDescriptor desc, NodeList nodes, NamedNodeMap attrs)
throws IOException {
// Create a vector to hold the property values
Vector v = new Vector();
int numAttrs = attrs.getLength();
for (int i = 0; i < numAttrs; i++) {
// See if this attribute matches the property name
if (namesMatch(desc.getName(), attrs.item(i).getNodeName())) {
// Get the property value
Object obValue = getObjectValue(desc, attrs.item(i).getNodeValue());
if (obValue != null) {
// Add the value to the list of values to be set
v.addElement(obValue);
}
}
}
int numNodes = nodes.getLength();
for (int i = 0; i < numNodes; i++) {
Node node = nodes.item(i);
// Skip non-element nodes
if (!(node instanceof Element)) continue;
Element element = (Element) node;
// See if this element tag matches the property name
if (namesMatch(desc.getName(), element.getTagName())) {
// Get the property value
Object obValue = getObjectValue(desc, element);
if (obValue != null) {
// Add the value to the list of values to be set
v.addElement(obValue);
}
}
}
// Get the method used to set the property value
Method setter = desc.getWriteMethod();
// If this property has no setter, don't write it
if (setter == null) return;
// Create a new array of property values
Object propArray = Array.newInstance(desc.getPropertyType().getComponentType(), v.size());
// Copy the vector into the array
v.copyInto((Object[]) propArray);
try {
// Store the array of property values
setter.invoke(ob, new Object[] {propArray});
} 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());
}
}
/**
* 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;
}
}