Java 类com.badlogic.gdx.ai.btree.annotation.TaskAttribute 实例源码

private Metadata findMetadata (Class<?> clazz) {
    Metadata metadata = metadataCache.get(clazz);
    if (metadata == null) {
        Annotation tca = ClassReflection.getAnnotation(clazz, TaskConstraint.class);
        if (tca != null) {
            TaskConstraint taskConstraint = tca.getAnnotation(TaskConstraint.class);
            ObjectMap<String, AttrInfo> taskAttributes = new ObjectMap<String, AttrInfo>();
            Field[] fields = ClassReflection.getFields(clazz);
            for (Field f : fields) {
                Annotation a = f.getDeclaredAnnotation(TaskAttribute.class);
                if (a != null) {
                    AttrInfo ai = new AttrInfo(f.getName(), a.getAnnotation(TaskAttribute.class));
                    taskAttributes.put(ai.name, ai);
                }
            }
            metadata = new Metadata(taskConstraint.minChildren(), taskConstraint.maxChildren(), taskAttributes);
            metadataCache.put(clazz, metadata);
        }
    }
    return metadata;
}

private static void appendFieldString (StringBuilder sb, Task<?> task, TaskAttribute ann, Field field) {
    // prefer name from annotation if there is one
    String name = ann.name();
    if (name == null || name.length() == 0) name = field.getName();
    Object value;
    try {
        field.setAccessible(true);
        value = field.get(task);
    } catch (ReflectionException e) {
        Gdx.app.error("", "Failed to get field", e);
        return;
    }
    sb.append(name).append(":");
    Class<?> fieldType = field.getType();
    if (fieldType.isEnum() || fieldType == String.class) {
        sb.append('\"').append(value).append('\"');
    } else if (Distribution.class.isAssignableFrom(fieldType)) {
        sb.append('\"').append(DAs.toString((Distribution)value)).append('\"');
    } else
        sb.append(value);
}

private Metadata findMetadata (Class<?> clazz) {
    Metadata metadata = metadataCache.get(clazz);
    if (metadata == null) {
        Annotation tca = ClassReflection.getAnnotation(clazz, TaskConstraint.class);
        if (tca != null) {
            TaskConstraint taskConstraint = tca.getAnnotation(TaskConstraint.class);
            ObjectMap<String, AttrInfo> taskAttributes = new ObjectMap<String, AttrInfo>();
            Field[] fields = ClassReflection.getFields(clazz);
            for (Field f : fields) {
                Annotation a = f.getDeclaredAnnotation(TaskAttribute.class);
                if (a != null) {
                    AttrInfo ai = new AttrInfo(f.getName(), a.getAnnotation(TaskAttribute.class));
                    taskAttributes.put(ai.name, ai);
                }
            }
            metadata = new Metadata(taskConstraint.minChildren(), taskConstraint.maxChildren(), taskAttributes);
            metadataCache.put(clazz, metadata);
        }
    }
    return metadata;
}

private static StringBuilder appendTaskAttributes (StringBuilder attrs, Task<?> task) {
    Class<?> aClass = task.getClass();
    Field[] fields = ClassReflection.getFields(aClass);
    for (Field f : fields) {
        Annotation a = f.getDeclaredAnnotation(TaskAttribute.class);
        if (a == null) continue;
        TaskAttribute annotation = a.getAnnotation(TaskAttribute.class);
        attrs.append('\n');
        appendFieldString(attrs, task, annotation, f);
    }
    return attrs;
}

AttrInfo (String fieldName, TaskAttribute annotation) {
    this(annotation.name(), fieldName, annotation.required());
}

AttrInfo (String fieldName, TaskAttribute annotation) {
    this(annotation.name(), fieldName, annotation.required());
}