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/*
 * 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.dubbo.rpc.proxy;

import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.logger.ErrorTypeAwareLogger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.common.profiler.Profiler;
import org.apache.dubbo.common.profiler.ProfilerEntry;
import org.apache.dubbo.common.profiler.ProfilerSwitch;
import org.apache.dubbo.rpc.AppResponse;
import org.apache.dubbo.rpc.AsyncContextImpl;
import org.apache.dubbo.rpc.AsyncRpcResult;
import org.apache.dubbo.rpc.Invocation;
import org.apache.dubbo.rpc.Invoker;
import org.apache.dubbo.rpc.Result;
import org.apache.dubbo.rpc.RpcContext;
import org.apache.dubbo.rpc.RpcException;

import java.lang.reflect.InvocationTargetException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionException;

import static org.apache.dubbo.common.constants.CommonConstants.PROVIDER_ASYNC_KEY;
import static org.apache.dubbo.common.constants.LoggerCodeConstants.PROXY_ERROR_ASYNC_RESPONSE;

/**
 * This Invoker works on provider side, delegates RPC to interface implementation.
 */
public abstract class AbstractProxyInvoker implements Invoker {
    ErrorTypeAwareLogger logger = LoggerFactory.getErrorTypeAwareLogger(AbstractProxyInvoker.class);

    private final T proxy;

    private final Class type;

    private final URL url;

    public AbstractProxyInvoker(T proxy, Class type, URL url) {
        if (proxy == null) {
            throw new IllegalArgumentException("proxy == null");
        }
        if (type == null) {
            throw new IllegalArgumentException("interface == null");
        }
        if (!type.isInstance(proxy)) {
            throw new IllegalArgumentException(proxy.getClass().getName() + " not implement interface " + type);
        }
        this.proxy = proxy;
        this.type = type;
        this.url = url;
    }

    @Override
    public Class getInterface() {
        return type;
    }

    @Override
    public URL getUrl() {
        return url;
    }

    @Override
    public boolean isAvailable() {
        return true;
    }

    @Override
    public void destroy() {
    }

    @Override
    public Result invoke(Invocation invocation) throws RpcException {
        try {
            ProfilerEntry originEntry = null;
            if (ProfilerSwitch.isEnableSimpleProfiler()) {
                Object fromInvocation = invocation.get(Profiler.PROFILER_KEY);
                if (fromInvocation instanceof ProfilerEntry) {
                    ProfilerEntry profiler = Profiler.enter((ProfilerEntry) fromInvocation, "Receive request. Server biz impl invoke begin.");
                    invocation.put(Profiler.PROFILER_KEY, profiler);
                    originEntry = Profiler.setToBizProfiler(profiler);
                }
            }

            Object value = doInvoke(proxy, invocation.getMethodName(), invocation.getParameterTypes(), invocation.getArguments());

            if (ProfilerSwitch.isEnableSimpleProfiler()) {
                Object fromInvocation = invocation.get(Profiler.PROFILER_KEY);
                if (fromInvocation instanceof ProfilerEntry) {
                    ProfilerEntry profiler = Profiler.release((ProfilerEntry) fromInvocation);
                    invocation.put(Profiler.PROFILER_KEY, profiler);
                }
            }
            Profiler.removeBizProfiler();
            if (originEntry != null) {
                Profiler.setToBizProfiler(originEntry);
            }

            CompletableFuture