private void setIndexedWriteMethod(Class<?> beanClass, String indexedSetterName, Class<?> argType)
throws IntrospectionException {
try {
Method setter = beanClass.getMethod(indexedSetterName, new Class[] {Integer.TYPE, argType});
internalSetIndexedWriteMethod(setter, true);
} catch (NoSuchMethodException exception) {
// beans.5D=No such indexed write method
throw new IntrospectionException(Messages.getString("beans.5D")); // $NON-NLS-1$
} catch (SecurityException exception) {
// beans.5C=Security violation accessing indexed write method
throw new IntrospectionException(Messages.getString("beans.5C")); // $NON-NLS-1$
}
}
private void setIndexedReadMethod(Class<?> beanClass, String indexedGetterName)
throws IntrospectionException {
Method getter;
try {
getter = beanClass.getMethod(indexedGetterName, new Class[] {Integer.TYPE});
} catch (NoSuchMethodException exception) {
// beans.58=No such indexed read method
throw new IntrospectionException(Messages.getString("beans.58")); // $NON-NLS-1$
} catch (SecurityException exception) {
// beans.59=Security violation accessing indexed read method
throw new IntrospectionException(Messages.getString("beans.59")); // $NON-NLS-1$
}
internalSetIndexedReadMethod(getter);
}
// ensures that there is no nulls
@SuppressWarnings("nls")
private void checkNotNull(
Object sourceClass, Object eventSetName, Object alistenerType, Object listenerMethodName) {
if (sourceClass == null) {
throw new NullPointerException(Messages.getString("beans.0C"));
}
if (eventSetName == null) {
throw new NullPointerException(Messages.getString("beans.53"));
}
if (alistenerType == null) {
throw new NullPointerException(Messages.getString("beans.54"));
}
if (listenerMethodName == null) {
throw new NullPointerException(Messages.getString("beans.52"));
}
}
private void setIndexedWriteMethod(Class<?> beanClass, String indexedSetterName)
throws IntrospectionException {
Method setter = null;
try {
setter =
beanClass.getMethod(
indexedSetterName, new Class[] {Integer.TYPE, getPropertyType().getComponentType()});
} catch (SecurityException e) {
// beans.5C=Security violation accessing indexed write method
throw new IntrospectionException(Messages.getString("beans.5C")); // $NON-NLS-1$
} catch (NoSuchMethodException e) {
// beans.5D=No such indexed write method
throw new IntrospectionException(Messages.getString("beans.5D")); // $NON-NLS-1$
}
internalSetIndexedWriteMethod(setter, true);
}
private void internalSetIndexedReadMethod(Method indexGetter) throws IntrospectionException {
// Clearing the indexed read method.
if (indexGetter == null) {
if (indexedSetter == null) {
if (getPropertyType() != null) {
// beans.5A=Indexed method is not compatible with non indexed method
throw new IntrospectionException(Messages.getString("beans.5A")); // $NON-NLS-1$
}
indexedPropertyType = null;
}
this.indexedGetter = null;
return;
}
// Validate the indexed getter.
if ((indexGetter.getParameterTypes().length != 1)
|| (indexGetter.getParameterTypes()[0] != Integer.TYPE)) {
// beans.5B=Indexed read method must take a single int argument
throw new IntrospectionException(Messages.getString("beans.5B")); // $NON-NLS-1$
}
Class<?> indexedReadType = indexGetter.getReturnType();
if (indexedReadType == Void.TYPE) {
// beans.5B=Indexed read method must take a single int argument
throw new IntrospectionException(Messages.getString("beans.5B")); // $NON-NLS-1$
} else if (indexedSetter != null
&& indexGetter.getReturnType() != indexedSetter.getParameterTypes()[1]) {
// beans.5A=Indexed read method is not compatible with indexed write method
throw new IntrospectionException(Messages.getString("beans.5A")); // $NON-NLS-1$
}
// Set the indexed property type if not already set, confirm validity if
// it is.
if (this.indexedGetter == null) {
indexedPropertyType = indexedReadType;
} else {
if (indexedPropertyType != indexedReadType) {
// beans.5A=Indexed read method is not compatible with indexed write method
throw new IntrospectionException(Messages.getString("beans.5A")); // $NON-NLS-1$
}
}
// Set the indexed getter
this.indexedGetter = indexGetter;
}
private void internalSetIndexedWriteMethod(Method indexSetter, boolean initialize)
throws IntrospectionException {
// Clearing the indexed write method.
if (indexSetter == null) {
if (indexedGetter == null) {
if (getPropertyType() != null) {
// beans.5E=Indexed method is not compatible with non indexed method
throw new IntrospectionException(Messages.getString("beans.5E")); // $NON-NLS-1$
}
indexedPropertyType = null;
}
this.indexedSetter = null;
return;
}
// Validate the indexed write method.
Class<?>[] indexedSetterArgs = indexSetter.getParameterTypes();
if (indexedSetterArgs.length != 2) {
// beans.5F=Indexed write method must take two arguments
throw new IntrospectionException(Messages.getString("beans.5F")); // $NON-NLS-1$
}
if (indexedSetterArgs[0] != Integer.TYPE) {
// beans.60=Indexed write method must take an int as its first argument
throw new IntrospectionException(Messages.getString("beans.60")); // $NON-NLS-1$
}
// Set the indexed property type if not already set, confirm validity if
// it is.
Class<?> indexedWriteType = indexedSetterArgs[1];
if (initialize && indexedGetter == null) {
indexedPropertyType = indexedWriteType;
} else {
if (indexedPropertyType != indexedWriteType) {
// beans.61=Indexed write method is not compatible with indexed read method
throw new IntrospectionException(Messages.getString("beans.61")); // $NON-NLS-1$
}
}
// Set the indexed write method.
this.indexedSetter = indexSetter;
}
/**
* Searches for {add|remove}Listener methods in the event source. Parameter check is also
* performed.
*
* @param sourceClass event source class
* @param methodName method name to search
* @return found method
* @throws IntrospectionException if no valid method found
*/
private Method findAddRemoveListenerMethod(Class<?> sourceClass, String methodName)
throws IntrospectionException {
try {
return sourceClass.getMethod(methodName, listenerType);
} catch (NoSuchMethodException e) {
return findAddRemoveListnerMethodWithLessCheck(sourceClass, methodName);
} catch (Exception e) {
throw new IntrospectionException(
Messages.getString(
"beans.31", //$NON-NLS-1$
methodName,
listenerType.getName()));
}
}
/**
* Constructs a new instance of <code>IndexedPropertyDescriptor</code>.
*
* @param propertyName the specified indexed property's name.
* @param getter the array getter
* @param setter the array setter
* @param indexedGetter the indexed getter
* @param indexedSetter the indexed setter
* @throws IntrospectionException
*/
public IndexedPropertyDescriptor(
String propertyName, Method getter, Method setter, Method indexedGetter, Method indexedSetter)
throws IntrospectionException {
super(propertyName, getter, setter);
if (indexedGetter != null) {
internalSetIndexedReadMethod(indexedGetter);
internalSetIndexedWriteMethod(indexedSetter, true);
} else {
internalSetIndexedWriteMethod(indexedSetter, true);
internalSetIndexedReadMethod(indexedGetter);
}
if (!isCompatible()) {
// beans.57=Property type is incompatible with the indexed property type
throw new IntrospectionException(Messages.getString("beans.57")); // $NON-NLS-1$
}
}
/**
* Checks that given listener method has an argument of the valid type.
*
* @param eventSetName event set name
* @param listenerMethod listener method
* @throws IntrospectionException if check fails
*/
private static void checkEventType(String eventSetName, Method listenerMethod)
throws IntrospectionException {
Class<?>[] params = listenerMethod.getParameterTypes();
String firstParamTypeName = null;
String eventTypeName = prepareEventTypeName(eventSetName);
if (params.length > 0) {
firstParamTypeName = extractShortClassName(params[0].getName());
}
if (firstParamTypeName == null || !firstParamTypeName.equals(eventTypeName)) {
throw new IntrospectionException(
Messages.getString(
"beans.51", //$NON-NLS-1$
listenerMethod.getName(),
eventTypeName));
}
}
private Method findListenerMethodByName(String listenerMethodName) throws IntrospectionException {
Method result = null;
Method[] methods = listenerType.getMethods();
for (Method method : methods) {
if (listenerMethodName.equals(method.getName())) {
Class<?>[] paramTypes = method.getParameterTypes();
if (paramTypes.length == 1 && paramTypes[0].getName().endsWith("Event")) { // $NON-NLS-1$
result = method;
break;
}
}
}
if (null == result) {
throw new IntrospectionException(
Messages.getString(
"beans.31", //$NON-NLS-1$
listenerMethodName,
listenerType.getName()));
}
return result;
}
public EventSetDescriptor(
Class<?> sourceClass, String eventSetName, Class<?> listenerType, String listenerMethodName)
throws IntrospectionException {
checkNotNull(sourceClass, eventSetName, listenerType, listenerMethodName);
setName(eventSetName);
this.listenerType = listenerType;
Method method = findListenerMethodByName(listenerMethodName);
checkEventType(eventSetName, method);
listenerMethodDescriptors = new ArrayList<MethodDescriptor>();
listenerMethodDescriptors.add(new MethodDescriptor(method));
addListenerMethod = findMethodByPrefix(sourceClass, "add", ""); // $NON-NLS-1$ //$NON-NLS-2$
removeListenerMethod =
findMethodByPrefix(sourceClass, "remove", ""); // $NON-NLS-1$ //$NON-NLS-2$
if (addListenerMethod == null || removeListenerMethod == null) {
throw new IntrospectionException(Messages.getString("beans.38")); // $NON-NLS-1$
}
getListenerMethod = findMethodByPrefix(sourceClass, "get", "s"); // $NON-NLS-1$ //$NON-NLS-2$
unicast = isUnicastByDefault(addListenerMethod);
}
private Method findAddRemoveListnerMethodWithLessCheck(Class<?> sourceClass, String methodName)
throws IntrospectionException {
Method[] methods = sourceClass.getMethods();
Method result = null;
for (Method method : methods) {
if (method.getName().equals(methodName)) {
Class<?>[] paramTypes = method.getParameterTypes();
if (paramTypes.length == 1) {
result = method;
break;
}
}
}
if (null == result) {
throw new IntrospectionException(
Messages.getString(
"beans.31", //$NON-NLS-1$
methodName,
listenerType.getName()));
}
return result;
}
private void setIndexedByName(
Class<?> beanClass, String indexedGetterName, String indexedSetterName)
throws IntrospectionException {
String theIndexedGetterName = indexedGetterName;
if (theIndexedGetterName == null) {
if (indexedSetterName != null) {
setIndexedWriteMethod(beanClass, indexedSetterName);
}
} else {
if (theIndexedGetterName.length() == 0) {
theIndexedGetterName = "get" + name; // $NON-NLS-1$
}
setIndexedReadMethod(beanClass, theIndexedGetterName);
if (indexedSetterName != null) {
setIndexedWriteMethod(beanClass, indexedSetterName, indexedPropertyType);
}
}
if (!isCompatible()) {
// beans.57=Property type is incompatible with the indexed property type
throw new IntrospectionException(Messages.getString("beans.57")); // $NON-NLS-1$
}
}
