113 lines
4.1 KiB
Java
Executable File
113 lines
4.1 KiB
Java
Executable File
/**
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* Copyright 2018-2028 Akaxin Group
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.windchat.im.message.sync.handler;
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import java.util.Map;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.akaxin.common.channel.ChannelWriter;
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import com.akaxin.common.command.Command;
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import com.akaxin.common.command.CommandResponse;
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import com.akaxin.common.constant.CommandConst;
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import com.akaxin.common.constant.ErrorCode2;
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import com.akaxin.common.logs.LogUtils;
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import com.akaxin.proto.client.ImStcPsnProto;
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import com.akaxin.proto.site.ImSyncFinishProto;
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import com.windchat.im.storage.api.IMessageDao;
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import com.windchat.im.storage.service.MessageDaoService;
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/**
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* 客户端同步消息完成结束标志
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*
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* @author Sam{@link an.guoyue254@gmail.com}
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* @since 2018-06-21 21:23:21
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*/
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public class SyncFinishHandler extends AbstractSyncHandler<Command> {
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private static Logger logger = LoggerFactory.getLogger(SyncFinishHandler.class);
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private IMessageDao syncDao = new MessageDaoService();
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public Boolean handle(Command command) {
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try {
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ImSyncFinishProto.ImSyncFinishRequest request = ImSyncFinishProto.ImSyncFinishRequest
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.parseFrom(command.getParams());
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String deviceId = command.getDeviceId();
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String siteUserId = command.getSiteUserId();
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long u2Pointer = request.getU2Pointer();
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Map<String, Long> groupPointer = request.getGroupsPointerMap();
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LogUtils.requestDebugLog(logger, command, request.toString());
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boolean goOnPSN = false;
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long maxU2Pointer = syncDao.queryMaxU2Pointer(siteUserId);// 查从库
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if (u2Pointer < maxU2Pointer) {
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u2Pointer = maxU2Pointer;
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}
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// 如果客户端上传的游标大于数据库里个人消息id的最大值，游标错误，使用消息最大id矫正
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long maxU2MessageId = syncDao.queryMaxU2MessageId(siteUserId);// 查主库
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if (u2Pointer > maxU2MessageId) {
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u2Pointer = maxU2MessageId;
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} else if (u2Pointer < maxU2MessageId) {
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goOnPSN = true;
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}
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syncDao.updateU2Pointer(siteUserId, deviceId, u2Pointer);
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// finish to group
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for (Map.Entry<String, Long> gidEntry : groupPointer.entrySet()) {
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String siteGroupId = gidEntry.getKey();
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long groupFinishPointer = gidEntry.getValue();
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long maxUserGroupPointer = syncDao.queryMaxUserGroupPointer(siteGroupId, siteUserId);// 从库
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if (groupFinishPointer < maxUserGroupPointer) {
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groupFinishPointer = maxUserGroupPointer;
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}
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// 群游标结束值 > 用户群组的最大消息id，说明此值错误，使用最大消息id矫正
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long maxGroupMsgPointer = syncDao.queryMaxGroupPointer(siteGroupId);// 查主库
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if (groupFinishPointer > maxGroupMsgPointer) {
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groupFinishPointer = maxGroupMsgPointer;
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} else if (groupFinishPointer < maxGroupMsgPointer) {
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// goOnPSN = true;
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}
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syncDao.updateGroupPointer(siteGroupId, siteUserId, deviceId, groupFinishPointer);
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}
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if (goOnPSN) {
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logger.debug("go on psn dbMaxPointer={} request={}", maxU2MessageId, request.toString());
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writePsn(deviceId);
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}
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return true;// 执行成功
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} catch (Exception e) {
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LogUtils.requestErrorLog(logger, command, e);
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}
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return false;
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}
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private void writePsn(String deviceId) {
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CommandResponse commandResponse = new CommandResponse().setVersion(CommandConst.PROTOCOL_VERSION)
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.setAction(CommandConst.IM_STC_PSN);
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ImStcPsnProto.ImStcPsnRequest pshRequest = ImStcPsnProto.ImStcPsnRequest.newBuilder().build();
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commandResponse.setParams(pshRequest.toByteArray());
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commandResponse.setErrCode2(ErrorCode2.SUCCESS);
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ChannelWriter.writeByDeviceId(deviceId, commandResponse);
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}
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}
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