【Android 组件化】路由组件 ( 构造路由表中的路由信息 )（一）

package kim.hsl.router_annotation.model;
import javax.lang.model.element.Element;
import kim.hsl.router_annotation.Route;
/**
 * 存储路由节点信息的 Bean
 */
public class RouteBean {
    /**
     * 注解类的类型
     * Activity 界面 / Service 服务
     */
    public enum Type {
        ACTIVITY,
        SERVICE
    }
    private Type type;
    /**
     * 被注解的节点
     */
    private Element element;
    /**
     * 被注解类
     */
    private Class<?> clazz;
    /**
     * 路由地址
     */
    private String routeAddress;
    /**
     * 路由组
     */
    private String routeGroup;
    public RouteBean(Type type, Element element, Route route) {
        this.type = type;
        this.element = element;
        this.clazz = null;
        this.routeAddress = route.path();
        this.routeGroup = route.group();
    }
    public RouteBean(Type type, Element element, Class<?> clazz, String routeAddress, String routeGroup) {
        this.type = type;
        this.element = element;
        this.clazz = clazz;
        this.routeAddress = routeAddress;
        this.routeGroup = routeGroup;
    }
    public Type getType() {
        return type;
    }
    public void setType(Type type) {
        this.type = type;
    }
    public Element getElement() {
        return element;
    }
    public void setElement(Element element) {
        this.element = element;
    }
    public Class<?> getClazz() {
        return clazz;
    }
    public void setClazz(Class<?> clazz) {
        this.clazz = clazz;
    }
    public String getRouteAddress() {
        return routeAddress;
    }
    public void setRouteAddress(String routeAddress) {
        this.routeAddress = routeAddress;
    }
    public String getRouteGroup() {
        return routeGroup;
    }
    public void setRouteGroup(String routeGroup) {
        this.routeGroup = routeGroup;
    }
}

@Route(path = "/app/MainActivity")
public class MainActivity extends Activity {
}

if (set == null || set.isEmpty()){
    // 如果没有检测到注解 , 直接退出
    return false;
}

// 获取被 @Route 注解的节点
// 这些 注解节点 都是类节点 , TypeElement 类型的
Set<? extends Element> routeElements = roundEnvironment.getElementsAnnotatedWith(Route.class);

// 获取 android.app.Activity 类型的注解节点
TypeElement activityElement = mElementUtils.getTypeElement("android.app.Activity");

mTypeUtils.isSubtype(element.asType(), activityElement.asType())

private void generateRouteClass(Set<? extends Element> routeElements) {
        // 获取 android.app.Activity 类型的注解节点
        TypeElement activityElement = mElementUtils.getTypeElement("android.app.Activity");
        // 处理 @Route(path = "app/MainActivity") 节点
        for (Element element : routeElements) {
            // 获取 Route 注解
            Route route = element.getAnnotation(Route.class);
            // 路由表中的单个路由对象
            RouteBean routeBean = null;
            // 打印类节点全类名
            mMessager.printMessage(Diagnostic.Kind.NOTE,
                    "打印类节点 typeElement : " + activityElement.getQualifiedName());
            // 判断 typeMirror 注解节点是否是 Activity 类型
            if (mTypeUtils.isSubtype(element.asType(), activityElement.asType())) {
                // 该节点是 android.app.Activity 类型的
                routeBean = new RouteBean(
                        RouteBean.Type.ACTIVITY,    // 路由对象类型
                        element,         // 路由节点
                        null,    // 类对象
                        route.path(),   // 路由地址
                        route.group()); // 路由组
                // 检查路由地址
                checkRouteAddress(routeBean);
                // 打印路由信息
                mMessager.printMessage(Diagnostic.Kind.NOTE,
                        "打印路由信息 : " + routeBean.toString());
            }else{
                // 该节点不是 android.app.Activity 类型的
                throw new RuntimeException("@Route 注解节点类型错误");
            }
        }
    }