From 5d16d9a0e7240ff4e6346bfee4890159da5a764e Mon Sep 17 00:00:00 2001
From: zhou zhou <3272660260@qq.com>
Date: 星期四, 19 三月 2026 11:40:51 +0800
Subject: [PATCH] #AI.记忆治理
---
rsf-server/src/main/java/com/vincent/rsf/server/ai/service/impl/AiChatMemoryServiceImpl.java | 181 +++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 174 insertions(+), 7 deletions(-)
diff --git a/rsf-server/src/main/java/com/vincent/rsf/server/ai/service/impl/AiChatMemoryServiceImpl.java b/rsf-server/src/main/java/com/vincent/rsf/server/ai/service/impl/AiChatMemoryServiceImpl.java
index c0a4a61..5f1c1f3 100644
--- a/rsf-server/src/main/java/com/vincent/rsf/server/ai/service/impl/AiChatMemoryServiceImpl.java
+++ b/rsf-server/src/main/java/com/vincent/rsf/server/ai/service/impl/AiChatMemoryServiceImpl.java
@@ -3,6 +3,7 @@
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.vincent.rsf.framework.common.Cools;
import com.vincent.rsf.framework.exception.CoolException;
+import com.vincent.rsf.server.ai.config.AiDefaults;
import com.vincent.rsf.server.ai.dto.AiChatMemoryDto;
import com.vincent.rsf.server.ai.dto.AiChatMessageDto;
import com.vincent.rsf.server.ai.dto.AiChatSessionPinRequest;
@@ -21,7 +22,6 @@
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
-import java.util.Locale;
@Service
@RequiredArgsConstructor
@@ -40,12 +40,22 @@
if (session == null) {
return AiChatMemoryDto.builder()
.sessionId(null)
+ .memorySummary(null)
+ .memoryFacts(null)
+ .recentMessageCount(0)
.persistedMessages(List.of())
+ .shortMemoryMessages(List.of())
.build();
}
+ List<AiChatMessageDto> persistedMessages = listMessages(session.getId());
+ List<AiChatMessageDto> shortMemoryMessages = tailMessagesByRounds(persistedMessages, AiDefaults.MEMORY_RECENT_ROUNDS);
return AiChatMemoryDto.builder()
.sessionId(session.getId())
- .persistedMessages(listMessages(session.getId()))
+ .memorySummary(session.getMemorySummary())
+ .memoryFacts(session.getMemoryFacts())
+ .recentMessageCount(shortMemoryMessages.size())
+ .persistedMessages(persistedMessages)
+ .shortMemoryMessages(shortMemoryMessages)
.build();
}
@@ -123,6 +133,7 @@
.setUpdateBy(userId)
.setUpdateTime(now);
aiChatSessionMapper.updateById(update);
+ refreshMemoryProfile(session.getId(), userId);
}
@Override
@@ -192,6 +203,47 @@
return buildSessionDto(requireOwnedSession(sessionId, userId, tenantId));
}
+ @Override
+ public void clearSessionMemory(Long userId, Long tenantId, Long sessionId) {
+ ensureIdentity(userId, tenantId);
+ AiChatSession session = requireOwnedSession(sessionId, userId, tenantId);
+ List<AiChatMessage> messages = aiChatMessageMapper.selectList(new LambdaQueryWrapper<AiChatMessage>()
+ .eq(AiChatMessage::getSessionId, sessionId)
+ .eq(AiChatMessage::getDeleted, 0));
+ for (AiChatMessage message : messages) {
+ aiChatMessageMapper.updateById(new AiChatMessage()
+ .setId(message.getId())
+ .setDeleted(1));
+ }
+ aiChatSessionMapper.updateById(new AiChatSession()
+ .setId(sessionId)
+ .setMemorySummary(null)
+ .setMemoryFacts(null)
+ .setUpdateBy(userId)
+ .setUpdateTime(new Date())
+ .setLastMessageTime(session.getCreateTime()));
+ }
+
+ @Override
+ public void retainLatestRound(Long userId, Long tenantId, Long sessionId) {
+ ensureIdentity(userId, tenantId);
+ requireOwnedSession(sessionId, userId, tenantId);
+ List<AiChatMessage> records = listMessageRecords(sessionId);
+ if (records.isEmpty()) {
+ return;
+ }
+ List<AiChatMessage> retained = tailMessageRecordsByRounds(records, 1);
+ for (AiChatMessage message : records) {
+ boolean shouldKeep = retained.stream().anyMatch(item -> item.getId().equals(message.getId()));
+ if (!shouldKeep) {
+ aiChatMessageMapper.updateById(new AiChatMessage()
+ .setId(message.getId())
+ .setDeleted(1));
+ }
+ }
+ refreshMemoryProfile(sessionId, userId);
+ }
+
private AiChatSession findLatestSession(Long userId, Long tenantId, String promptCode) {
return aiChatSessionMapper.selectOne(new LambdaQueryWrapper<AiChatSession>()
.eq(AiChatSession::getUserId, userId)
@@ -237,11 +289,7 @@
}
private List<AiChatMessageDto> listMessages(Long sessionId) {
- List<AiChatMessage> records = aiChatMessageMapper.selectList(new LambdaQueryWrapper<AiChatMessage>()
- .eq(AiChatMessage::getSessionId, sessionId)
- .eq(AiChatMessage::getDeleted, 0)
- .orderByAsc(AiChatMessage::getSeqNo)
- .orderByAsc(AiChatMessage::getId));
+ List<AiChatMessage> records = listMessageRecords(sessionId);
if (Cools.isEmpty(records)) {
return List.of();
}
@@ -279,6 +327,14 @@
return normalized;
}
+ private List<AiChatMessage> listMessageRecords(Long sessionId) {
+ return aiChatMessageMapper.selectList(new LambdaQueryWrapper<AiChatMessage>()
+ .eq(AiChatMessage::getSessionId, sessionId)
+ .eq(AiChatMessage::getDeleted, 0)
+ .orderByAsc(AiChatMessage::getSeqNo)
+ .orderByAsc(AiChatMessage::getId));
+ }
+
private int findNextSeqNo(Long sessionId) {
AiChatMessage lastMessage = aiChatMessageMapper.selectOne(new LambdaQueryWrapper<AiChatMessage>()
.eq(AiChatMessage::getSessionId, sessionId)
@@ -295,6 +351,7 @@
.setSeqNo(seqNo)
.setRole(role)
.setContent(content)
+ .setContentLength(content == null ? 0 : content.length())
.setUserId(userId)
.setTenantId(tenantId)
.setDeleted(0)
@@ -371,6 +428,116 @@
return normalized.length() > 80 ? normalized.substring(0, 80) : normalized;
}
+ private void refreshMemoryProfile(Long sessionId, Long userId) {
+ List<AiChatMessageDto> messages = listMessages(sessionId);
+ List<AiChatMessageDto> shortMemoryMessages = tailMessagesByRounds(messages, AiDefaults.MEMORY_RECENT_ROUNDS);
+ List<AiChatMessageDto> historyMessages = messages.size() > shortMemoryMessages.size()
+ ? messages.subList(0, messages.size() - shortMemoryMessages.size())
+ : List.of();
+ String memorySummary = historyMessages.size() >= AiDefaults.MEMORY_SUMMARY_TRIGGER_MESSAGES
+ ? buildMemorySummary(historyMessages)
+ : null;
+ String memoryFacts = buildMemoryFacts(messages);
+ AiChatMessage lastMessage = aiChatMessageMapper.selectOne(new LambdaQueryWrapper<AiChatMessage>()
+ .eq(AiChatMessage::getSessionId, sessionId)
+ .eq(AiChatMessage::getDeleted, 0)
+ .orderByDesc(AiChatMessage::getSeqNo)
+ .orderByDesc(AiChatMessage::getId)
+ .last("limit 1"));
+ aiChatSessionMapper.updateById(new AiChatSession()
+ .setId(sessionId)
+ .setMemorySummary(memorySummary)
+ .setMemoryFacts(memoryFacts)
+ .setLastMessageTime(lastMessage == null ? null : lastMessage.getCreateTime())
+ .setUpdateBy(userId)
+ .setUpdateTime(new Date()));
+ }
+
+ private List<AiChatMessageDto> tailMessagesByRounds(List<AiChatMessageDto> source, int rounds) {
+ if (Cools.isEmpty(source) || rounds <= 0) {
+ return List.of();
+ }
+ int userCount = 0;
+ int startIndex = source.size();
+ for (int i = source.size() - 1; i >= 0; i--) {
+ AiChatMessageDto item = source.get(i);
+ startIndex = i;
+ if (item != null && "user".equalsIgnoreCase(item.getRole())) {
+ userCount++;
+ if (userCount >= rounds) {
+ break;
+ }
+ }
+ }
+ return new ArrayList<>(source.subList(Math.max(0, startIndex), source.size()));
+ }
+
+ private List<AiChatMessage> tailMessageRecordsByRounds(List<AiChatMessage> source, int rounds) {
+ if (Cools.isEmpty(source) || rounds <= 0) {
+ return List.of();
+ }
+ int userCount = 0;
+ int startIndex = source.size();
+ for (int i = source.size() - 1; i >= 0; i--) {
+ AiChatMessage item = source.get(i);
+ startIndex = i;
+ if (item != null && "user".equalsIgnoreCase(item.getRole())) {
+ userCount++;
+ if (userCount >= rounds) {
+ break;
+ }
+ }
+ }
+ return new ArrayList<>(source.subList(Math.max(0, startIndex), source.size()));
+ }
+
+ private String buildMemorySummary(List<AiChatMessageDto> historyMessages) {
+ StringBuilder builder = new StringBuilder("杈冩棭瀵硅瘽鎽樿:\n");
+ for (AiChatMessageDto item : historyMessages) {
+ if (item == null || !StringUtils.hasText(item.getContent())) {
+ continue;
+ }
+ String prefix = "assistant".equalsIgnoreCase(item.getRole()) ? "- AI: " : "- 鐢ㄦ埛: ";
+ String content = compactText(item.getContent(), 120);
+ if (!StringUtils.hasText(content)) {
+ continue;
+ }
+ builder.append(prefix).append(content).append("\n");
+ if (builder.length() >= AiDefaults.MEMORY_SUMMARY_MAX_LENGTH) {
+ break;
+ }
+ }
+ return compactText(builder.toString(), AiDefaults.MEMORY_SUMMARY_MAX_LENGTH);
+ }
+
+ private String buildMemoryFacts(List<AiChatMessageDto> messages) {
+ if (Cools.isEmpty(messages)) {
+ return null;
+ }
+ StringBuilder builder = new StringBuilder("鍏抽敭浜嬪疄:\n");
+ int userFacts = 0;
+ for (int i = messages.size() - 1; i >= 0 && userFacts < 4; i--) {
+ AiChatMessageDto item = messages.get(i);
+ if (item == null || !"user".equalsIgnoreCase(item.getRole()) || !StringUtils.hasText(item.getContent())) {
+ continue;
+ }
+ builder.append("- 鐢ㄦ埛鍏虫敞: ").append(compactText(item.getContent(), 100)).append("\n");
+ userFacts++;
+ }
+ return userFacts == 0 ? null : compactText(builder.toString(), AiDefaults.MEMORY_FACTS_MAX_LENGTH);
+ }
+
+ private String compactText(String content, int maxLength) {
+ if (!StringUtils.hasText(content)) {
+ return null;
+ }
+ String normalized = content.trim()
+ .replace("\r", " ")
+ .replace("\n", " ")
+ .replaceAll("\\s+", " ");
+ return normalized.length() > maxLength ? normalized.substring(0, maxLength) : normalized;
+ }
+
private void ensureIdentity(Long userId, Long tenantId) {
if (userId == null) {
throw new CoolException("褰撳墠鐧诲綍鐢ㄦ埛涓嶅瓨鍦�");
--
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