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DtmClient.java
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91 lines (80 loc) · 2.81 KB
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/*
* MIT License
*
* Copyright (c) 2021 yedf
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package client;
import com.alibaba.fastjson.JSONObject;
import common.model.DtmConsumer;
import common.model.DtmServerInfo;
import common.utils.HttpUtil;
import okhttp3.Response;
import tcc.Tcc;
import java.util.Objects;
/**
* @author lixiaoshuang
*/
public class DtmClient {
private String ipPort;
public DtmClient(String ipPort) {
this.ipPort = ipPort;
}
/**
* 生成全局事务id
*
* @return
* @throws Exception
*/
public String genGid() throws Exception {
DtmServerInfo dtmServerInfo = new DtmServerInfo(ipPort);
JSONObject jsonObject = null;
try {
Response response = HttpUtil.get(dtmServerInfo.newGid());
if (Objects.nonNull(response.body())) {
String result = response.body().string();
jsonObject = JSONObject.parseObject(result);
}
} catch (Exception e) {
throw new Exception("Can’t get gid, please check the dtm server.");
}
if (Objects.isNull(jsonObject)) {
throw new Exception("Can’t get gid, please check the dtm server.");
}
Object code = jsonObject.get("code");
if (null != code && (int) code > 0) {
Object message = jsonObject.get("message");
throw new Exception(message.toString());
}
return jsonObject.get("gid").toString();
}
/**
* tcc事务
*
* @param gid
* @param function
* @return
* @throws Exception
*/
public void tccGlobalTransaction(String gid, DtmConsumer<Tcc> function) throws Exception {
Tcc tcc = new Tcc(ipPort, gid);
tcc.tccGlobalTransaction(function);
}
}