/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */


package org.apache.skywalking.apm.plugin.motan.define;

import com.weibo.api.motan.rpc.Request;
import net.bytebuddy.description.method.MethodDescription;
import net.bytebuddy.matcher.ElementMatcher;
import org.apache.skywalking.apm.agent.core.plugin.interceptor.InstanceMethodsInterceptPoint;
import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.ClassInstanceMethodsEnhancePluginDefine;
import org.apache.skywalking.apm.agent.core.plugin.match.NameMatch;
import org.apache.skywalking.apm.plugin.motan.MotanConsumerInterceptor;
import org.apache.skywalking.apm.agent.core.plugin.interceptor.ConstructorInterceptPoint;
import org.apache.skywalking.apm.agent.core.plugin.match.ClassMatch;

import static net.bytebuddy.matcher.ElementMatchers.any;
import static net.bytebuddy.matcher.ElementMatchers.named;

/**
 * {@link MotanProviderInstrumentation} presents that skywalking will use
 * {@link MotanConsumerInterceptor} to intercept
 * all constructor of {@link com.weibo.api.motan.rpc.AbstractProvider} and
 * {@link com.weibo.api.motan.rpc.AbstractProvider#call(Request)}.
 *
 * @author zhangxin
 */
public class MotanProviderInstrumentation extends ClassInstanceMethodsEnhancePluginDefine {

    /**
     * Enhance class.
     */
    private static final String ENHANCE_CLASS = "com.weibo.api.motan.rpc.AbstractReferer";
    /**
     * Class that intercept all constructor of ${@link com.weibo.api.motan.rpc.AbstractProvider}.
     */
    private static final String CONSTRUCTOR_INTERCEPT_CLASS = "org.apache.skywalking.apm.plugin.motan.MotanConsumerInterceptor";
    /**
     * Class that intercept {@link com.weibo.api.motan.rpc.AbstractProvider#call(Request)}.
     */
    private static final String PROVIDER_INVOKE_INTERCEPT_CLASS = "org.apache.skywalking.apm.plugin.motan.MotanConsumerInterceptor";

    @Override
    protected ClassMatch enhanceClass() {
        return NameMatch.byName(ENHANCE_CLASS);
    }

    @Override
    protected ConstructorInterceptPoint[] getConstructorsInterceptPoints() {
        return new ConstructorInterceptPoint[] {
            new ConstructorInterceptPoint() {
                @Override
                public ElementMatcher<MethodDescription> getConstructorMatcher() {
                    return any();
                }

                @Override
                public String getConstructorInterceptor() {
                    return CONSTRUCTOR_INTERCEPT_CLASS;
                }
            }
        };
    }

    @Override
    protected InstanceMethodsInterceptPoint[] getInstanceMethodsInterceptPoints() {
        return new InstanceMethodsInterceptPoint[] {
            new InstanceMethodsInterceptPoint() {
                @Override
                public ElementMatcher<MethodDescription> getMethodsMatcher() {
                    return named("call");
                }

                @Override
                public String getMethodsInterceptor() {
                    return PROVIDER_INVOKE_INTERCEPT_CLASS;
                }

                @Override public boolean isOverrideArgs() {
                    return false;
                }
            }
        };
    }
}
