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/**
 * Copyright (C) 2016 - 2030 youtongluan.
 *
 * Licensed 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.yx.rpc.client;

import java.util.Map;

import org.yx.common.context.ActionContext;
import org.yx.conf.AppInfo;
import org.yx.exception.SumkException;
import org.yx.log.Logs;
import org.yx.rpc.RpcSettings;
import org.yx.rpc.client.route.ZkRouteParser;
import org.yx.rpc.codec.Protocols;
import org.yx.util.UUIDSeed;

public final class Rpc {
	private Rpc() {
	}

	private static volatile boolean strated;

	private static String appId;

	public static void resetStatus() {
		strated = false;
	}

	public static synchronized void init() {
		if (strated) {
			return;
		}
		try {
			appId = AppInfo.appId("sumk");
			RpcSettings.init();
			String zkUrl = AppInfo.getClinetZKUrl();
			Logs.rpc().info("rpc client zkUrl:{}", zkUrl);
			ZkRouteParser.get(zkUrl).readRouteAndListen();
			ReqSession.init();
			strated = true;
		} catch (Exception e) {
			throw SumkException.create(e);
		}
	}

	static Req req(String method) {
		Req req = new Req();
		ActionContext context = ActionContext.get();
		if (context.isTest()) {
			req.setTest(true);
		}
		req.setStart(System.currentTimeMillis());
		String sn = UUIDSeed.seq18();
		req.setFullSn(sn, context.traceId(), context.nextSpanId());
		req.setUserId(context.userId());
		req.setApi(method);
		req.setFrom(appId);
		req.initAcceptResponseTypes(Protocols.RESPONSE_ACCEPT_TYPES);

		req.setAttachments(context.attachmentView());
		return req;
	}

	public static Client create(String method) {
		return new Client(method);
	}

	/**
	 * 根据参数顺序调用rpc方法

	 * 参数对象是原始的参数对象，不需要进行gson转化
	 * 
	 * @param method
	 *            注册的接口名称，如a.b.c
	 * @param args
	 *            支持泛型，比如List<Integer>之类的。但不提倡使用泛型。
	 * @return json格式的服务器响应结果
	 * @throws org.yx.exception.SoaException
	 *             rpc异常
	 * @throws org.yx.exception.BizException
	 *             业务异常
	 */
	public static String call(String method, Object... args) {
		return new Client(method).paramInArray(args).timeout(RpcSettings.clientDefaultTimeout()).execute()
				.getOrException();
	}

	/**
	 * 
	 * @param method
	 *            注册的接口名称，如a.b.c
	 * @param json
	 *            用json序列化的参数对象
	 * @return json格式的服务器响应结果
	 * @throws org.yx.exception.SoaException
	 *             rpc异常
	 * @throws org.yx.exception.BizException
	 *             业务异常
	 */
	public static String callInJson(String method, String json) {
		return new Client(method).paramInJson(json).timeout(RpcSettings.clientDefaultTimeout()).execute()
				.getOrException();
	}

	public static String callInMap(String method, Map map) {
		return new Client(method).paramInMap(map).timeout(RpcSettings.clientDefaultTimeout()).execute()
				.getOrException();
	}

	/**
	 * 根据参数顺序异步调用rpc方法
	 * 
	 * @param method
	 *            注册的接口名称，如a.b.c
	 * @param args
	 *            支持泛型，比如List<Integer>之类的。但不提倡使用泛型
	 * @return json格式的服务器响应结果
	 */
	public static RpcFuture callAsync(String method, Object... args) {
		return new Client(method).paramInArray(args).execute();
	}

	/**
	 * 
	 * @param method
	 *            注册的接口名称，如a.b.c
	 * @param json
	 *            用json序列化的参数对象
	 * @return json格式的服务器响应结果
	 */
	public static RpcFuture callInJsonAsync(String method, String json) {
		return new Client(method).paramInJson(json).execute();
	}

	public static RpcFuture callInMapAsync(String method, Map map) {
		return new Client(method).paramInMap(map).execute();
	}

}