public static Method findGetter()

in xbean-reflect/src/main/java/org/apache/xbean/recipe/ReflectionUtil.java [172:236]
55 lines of code
26 McCabe index (conditional complexity)

    public static Method findGetter(Class typeClass, String propertyName, Set<Option> options) {
        if (typeClass == null) throw new NullPointerException("typeClass is null");
        if (propertyName == null) throw new NullPointerException("name is null");
        if (propertyName.length() == 0) throw new IllegalArgumentException("name is an empty string");
        if (options == null) options = EnumSet.noneOf(Option.class);

        if (propertyName.contains("/")){
            String[] strings = propertyName.split("/");
            if (strings == null || strings.length != 2) throw new IllegalArgumentException("badly formed <class>/<attribute> property name: " + propertyName);

            String className = strings[0];
            propertyName = strings[1];

            boolean found = false;
            while(!typeClass.equals(Object.class) && !found){
                if (typeClass.getName().equals(className)){
                    found = true;
                    break;
                } else {
                    typeClass = typeClass.getSuperclass();
                }
            }

            if (!found) throw new MissingAccessorException("Type not assignable to class: " + className, -1);
        }

        String getterName = "get" + Character.toUpperCase(propertyName.charAt(0));
        if (propertyName.length() > 0) {
            getterName += propertyName.substring(1);
        }
        
        boolean allowPrivate = options.contains(Option.PRIVATE_PROPERTIES);
        boolean allowStatic = options.contains(Option.STATIC_PROPERTIES);
        boolean caseInsesnitive = options.contains(Option.CASE_INSENSITIVE_PROPERTIES);

        List<Method> methods = new ArrayList<Method>(Arrays.asList(typeClass.getMethods()));
        methods.addAll(Arrays.asList(typeClass.getDeclaredMethods()));
        for (Method method : methods) {
            if (method.getName().equals(getterName) || (caseInsesnitive && method.getName().equalsIgnoreCase(getterName))) {
                if (method.getParameterTypes().length > 0) {
                    continue;
                }
                if (method.getReturnType() == Void.TYPE) {
                    continue;
                }
                if (Modifier.isAbstract(method.getModifiers())) {
                    continue;
                }
                if (!allowPrivate && !Modifier.isPublic(method.getModifiers())) {
                    continue;
                }
                if (!allowStatic && Modifier.isStatic(method.getModifiers())) {
                    continue;
                }

                if (allowPrivate && !Modifier.isPublic(method.getModifiers())) {
                    setAccessible(method);
                }
                
                return method;
            }
        }
        
        return null;
    }