+ throw new IllegalArgumentException(
+ "Method '" + aMethod + "' was not configured. ");
+ }
+
+ /**
+ * Adds a given setter name to the setters.
+ *
+ * @param aName Name of a setter method.
+ * @return Reference to the current object to allow call chaining.
+ */
+ public SetterConfiguration add(final String aName) {
+ int oldlen = _setters.size();
+ List<Method> methods = new ArrayList<Method>();
+ CollectionFilter.filter(getAllSetters(_class, _publicOnly), methods,
+ new Condition<Method>() {
+ @Override
+ public boolean matches(Method aObject) {
+ return aObject.getName().equals(aName);
+ }
+
+ });
+ if (methods.size() == 0 ) {
+ throw new IllegalArgumentException("Method '" + aName
+ + "' not found in " + _class.getName());
+ }
+ // TODO is it possible to get more than one setter here in case the subclass overrides
+ // the baseclass method?
+ _setters.put(methods.get(0), createParameterValues(methods.get(0)));
+ return this;
+ }
+
+ /**
+ * Adds a given setter identified by the type it accepts to the list of
+ * setters.N
+ *
+ * @param aType
+ * Type to look for. Note that this must be the exact type as
+ * autoboxing and autounboxing is not used.
+ * @return Reference to the current object to allow call chaining.
+ * @throws IllegalArgumentException
+ * In case no setter is found or multiple setters are found.
+ */
+ public SetterConfiguration addSetter(final Class aType) {
+ List<Method> result = new ArrayList<Method>();
+ CollectionFilter.filter(getAllSetters(_class, _publicOnly), result,
+ new Condition<Method>() {
+ @Override
+ public boolean matches(Method aObject) {
+ Class type = aObject.getParameterTypes()[0];
+ return type.equals(aType);
+ }
+
+ });
+ if (result.size() == 0) {
+ throw new IllegalArgumentException("No setter found in class '"
+ + _class.getName()
+ + "' that has a setter with argument type '"
+ + aType.getName() + "'");
+ }
+ if (result.size() > 1) {
+ String setters = "";
+ for (Method method : result) {
+ setters += method.getName() + " ";
+ }
+ throw new IllegalArgumentException(
+ "Multiple setters found in class '" + _class.getName()
+ + " that accept type '" + aType.getName() + "': "
+ + setters);
+ }
+ Method method = result.get(0);
+ _setters.put(method, createParameterValues(method));
+ return this;
+ }
+
+ /**
+ * Gets all setters for the current class.
+ *
+ * @return List of all setters.
+ */
+ public static List<Method> getAllSetters(Class aClass,
+ boolean aPublicOnly) {
+ List<Method> result = new ArrayList<Method>();
+ for (Method method : getAllMethods(aClass)) {
+ if (!aPublicOnly || Modifier.isPublic(method.getModifiers())) {
+ if (method.getName().startsWith("set")
+ && method.getParameterTypes().length == 1) {
+ method.setAccessible(true);
+ result.add(method);
+ }
+ }
+ }
+ return result;
+ }
+
+ private static ParameterValues createParameterValues(Method aMethod) {
+
+ Class[] paramTypes = aMethod.getParameterTypes();
+ String[] paramNames = new String[paramTypes.length];
+ for (int i = 0; i < paramTypes.length; i++) {
+ paramNames[i] = aMethod.getName() + "." + i;
+ }
+ return new ParameterValues(paramNames, paramTypes);
+ }
+
+ private static final List<Method> getAllMethods(Class aClass) {
+ return ReflectionUtils.getAllMethods(aClass);
+ }
+
+ /**
+ * Gets the required interfaces based on the configured setteres.
+ *
+ * @return List of required interfaces.
+ */
+ public List<RequiredInterface> getRequiredInterfaces() {
+ List<RequiredInterface> result = new ArrayList<RequiredInterface>();
+ for (Method method : _setters.keySet()) {
+ result.addAll(_setters.get(method).getRequiredInterfaces());
+ }
+ return result;
+ }
+
+ /**
+ * Invokes all configured setters with the appropriate values.
+ *
+ * @param aScope
+ * Scope within which invocation takes place.
+ * @param aObject
+ * Object on which the invocation takes place.
+ */
+ public void inject(Scope aScope, Object aObject) {
+ if (!_class.isInstance(aObject)) {
+ throw new IllegalArgumentException("Object '" + aObject
+ + "' is not an instance of " + _class.getName());
+ }
+ for (Method method : _setters.keySet()) {
+ ParameterValues values = _setters.get(method);
+
+ try {
+ method.invoke(aObject, values.values(aScope));
+ } catch (IllegalAccessException e) {
+ throw new SystemAssemblyException("Problem invoking " + method
+ + " with " + values, e);
+ } catch (InvocationTargetException e) {
+ throw new SystemAssemblyException("Problem invoking " + method
+ + " with " + values, e);
+ }
+ }
+ }
+
+ /**
+ * Returns the parameter values for allowing detailed configuration of how
+ * parameter values are set.
+ *
+ * @param aSetter
+ * Setter name without the "set" prefix with the first character
+ * converted to lower case.
+ * @return Parameter values.
+ */
+ public ParameterValues values(String aMethod) {
+ for (Method method : _setters.keySet()) {
+ if (method.getName().equals(aMethod)) {
+ return _setters.get(method);
+ }
+ }
+ throw new IllegalArgumentException("No setter method '" + aMethod
+ + "' found");
+ }
+
+ public List<Method> getSetters() {
+ return new ArrayList<Method>(_setters.keySet());
+ }