Update of /var/cvs/src/org/mmbase/util/xml
In directory james.mmbase.org:/tmp/cvs-serv6901
Modified Files:
Instantiator.java
Log Message:
generalized code to set a property on an object
See also: http://cvs.mmbase.org/viewcvs/src/org/mmbase/util/xml
Index: Instantiator.java
===================================================================
RCS file: /var/cvs/src/org/mmbase/util/xml/Instantiator.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -b -r1.2 -r1.3
--- Instantiator.java 28 Dec 2007 17:14:57 -0000 1.2
+++ Instantiator.java 19 Mar 2008 17:05:28 -0000 1.3
@@ -22,7 +22,7 @@
*
* @since MMBase-1.9
* @author Michiel Meeuwissen
- * @version $Id: Instantiator.java,v 1.2 2007/12/28 17:14:57 michiel Exp $
+ * @version $Id: Instantiator.java,v 1.3 2008/03/19 17:05:28 michiel Exp $
*/
public abstract class Instantiator {
@@ -66,19 +66,8 @@
Element param = (Element)node;
String name = param.getAttribute("name");
String value =
org.mmbase.util.xml.DocumentReader.getNodeTextValue(param);
- String methodName = "set" + name.substring(0,
1).toUpperCase() + name.substring(1);
- try {
- Method method = claz.getMethod(methodName,
String.class);
- method.invoke(o, value);
- } catch (NoSuchMethodException nsme) {
- try {
- Method method = claz.getMethod(methodName,
Boolean.TYPE);
- method.invoke(o, Casting.toBoolean(value));
- } catch (NoSuchMethodException nsme2) {
- Method method = claz.getMethod(methodName,
Integer.TYPE);
- method.invoke(o, Casting.toInt(value));
- }
- }
+ setProperty(name, claz, o, value);
+
}
} catch (Exception e) {
log.error(e.getMessage(), e);
@@ -87,6 +76,35 @@
return o;
}
+ /**
+ * Given the name of a property, a clazz, on object and a value, set the
property on the
+ * object. The point of this method is that it converts the name of the
property to an actual
+ * method name (set<Name of the property>). The methods needs to
have precisely
+ * <em>one</em> parameter. The type of this parameter may be anything as
long as it can be
+ * converted to from String by [EMAIL PROTECTED]
org.mmbase.util.Casting#toType(Class, Object)}.
+ *
+ * @param value The value as a <code>String</code>
+ */
+ public static void setProperty(String name, Class claz, Object o, String
value) {
+ String methodName = "set" + name.substring(0, 1).toUpperCase() +
name.substring(1);
+ boolean invoked = false;
+ for (Method m : claz.getMethods()) {
+ try {
+ if (m.getName().equals(methodName) &&
m.getParameterTypes().length == 1) {
+ if (invoked) {
+ log.warn("Found multiple matches for setter " + name +
" on " + claz);
+ }
+ m.invoke(o, Casting.toType(m.getParameterTypes()[0],
value));
+ invoked = true;
+ }
+ } catch (IllegalAccessException ie) {
+ log.warn(ie);
+ } catch (InvocationTargetException ite) {
+ log.warn(ite);
+ }
+ }
+ }
+
public static Object getInstanceWithSubElement(Element element, Object...
args) throws org.xml.sax.SAXException, ClassNotFoundException,
NoSuchMethodException, InstantiationException, IllegalAccessException,
java.lang.reflect.InvocationTargetException {
NodeList childs = element.getChildNodes();
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