Examples with Interceptor com.alibaba.android.arouter.facade.annotation.Interceptor used on opensource projects

Example 1 with Interceptor

use of com.alibaba.android.arouter.facade.annotation.Interceptor in project ARouter by alibaba.

the class InterceptorProcessor method parseInterceptors.

/**
     * Parse tollgate.
     *
     * @param elements elements of tollgate.
     */
private void parseInterceptors(Set<? extends Element> elements) throws IOException {
    if (CollectionUtils.isNotEmpty(elements)) {
        logger.info(">>> Found interceptors, size is " + elements.size() + " <<<");
        // Verify and cache, sort incidentally.
        for (Element element : elements) {
            if (verify(element)) {
                // Check the interceptor meta
                logger.info("A interceptor verify over, its " + element.asType());
                Interceptor interceptor = element.getAnnotation(Interceptor.class);
                Element lastInterceptor = interceptors.get(interceptor.priority());
                if (null != lastInterceptor) {
                    // Added, throw exceptions
                    throw new IllegalArgumentException(String.format(Locale.getDefault(), "More than one interceptors use same priority [%d], They are [%s] and [%s].", interceptor.priority(), lastInterceptor.getSimpleName(), element.getSimpleName()));
                }
                interceptors.put(interceptor.priority(), element);
            } else {
                logger.error("A interceptor verify failed, its " + element.asType());
            }
        }
        // Interface of ARouter.
        TypeElement type_ITollgate = elementUtil.getTypeElement(IINTERCEPTOR);
        TypeElement type_ITollgateGroup = elementUtil.getTypeElement(IINTERCEPTOR_GROUP);
        /**
             *  Build input type, format as :
             *
             *  ```Map<Integer, Class<? extends ITollgate>>```
             */
        ParameterizedTypeName inputMapTypeOfTollgate = ParameterizedTypeName.get(ClassName.get(Map.class), ClassName.get(Integer.class), ParameterizedTypeName.get(ClassName.get(Class.class), WildcardTypeName.subtypeOf(ClassName.get(type_ITollgate))));
        // Build input param name.
        ParameterSpec tollgateParamSpec = ParameterSpec.builder(inputMapTypeOfTollgate, "interceptors").build();
        // Build method : 'loadInto'
        MethodSpec.Builder loadIntoMethodOfTollgateBuilder = MethodSpec.methodBuilder(METHOD_LOAD_INTO).addAnnotation(Override.class).addModifiers(PUBLIC).addParameter(tollgateParamSpec);
        // Generate
        if (null != interceptors && interceptors.size() > 0) {
            // Build method body
            for (Map.Entry<Integer, Element> entry : interceptors.entrySet()) {
                loadIntoMethodOfTollgateBuilder.addStatement("interceptors.put(" + entry.getKey() + ", $T.class)", ClassName.get((TypeElement) entry.getValue()));
            }
        }
        // Write to disk(Write file even interceptors is empty.)
        JavaFile.builder(PACKAGE_OF_GENERATE_FILE, TypeSpec.classBuilder(NAME_OF_INTERCEPTOR + SEPARATOR + moduleName).addModifiers(PUBLIC).addJavadoc(WARNING_TIPS).addMethod(loadIntoMethodOfTollgateBuilder.build()).addSuperinterface(ClassName.get(type_ITollgateGroup)).build()).build().writeTo(mFiler);
        logger.info(">>> Interceptor group write over. <<<");
    }
}