/** * 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; } }