FormCollectTool.java
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package com.xly.tool;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.xly.agent.AgentIdentity;
import com.xly.service.ErpClient;
import com.xly.service.FormResolverService;
import dev.langchain4j.agent.tool.P;
import dev.langchain4j.agent.tool.Tool;
import org.springframework.jdbc.core.JdbcTemplate;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
/**
* FormCollect 工具（架构 §5 #5）——在对话里渲染一张 ERP 表单，让用户一次填齐 N 个参数，
* 而不是逐字段追问。字段/类型/必填/下拉/默认来自 ERP 表单元数据（{@code gdsconfigformslave}）。
*
* <p>工具返回结构化 schema（marker {@code type=form_collect}）；{@code AgentChatController} 侦测到后推
* SSE {@code form_collect} 事件，前端渲染表单；用户填完提交，前端把收集到的字段拼成后续对话消息发回，
* agent 再据此走 {@code proposeCreate}（人在环写入）。适合报价这类字段多的新建场景。
*
* <p>由 {@code AgentFactory} 按请求身份新建（非 @Component）：携带 {@link AgentIdentity} 做表单级授权。
*/
public class FormCollectTool {
private static final int MAX_FIELDS = 40;
private final ErpClient erp;
private final JdbcTemplate jdbc;
private final FormResolverService resolver;
private final AgentIdentity identity;
private final ObjectMapper mapper;
public FormCollectTool(ErpClient erp, JdbcTemplate jdbc, FormResolverService resolver,
AgentIdentity identity, ObjectMapper mapper) {
this.erp = erp;
this.jdbc = jdbc;
this.resolver = resolver;
this.identity = identity;
this.mapper = mapper;
}
@Tool("在对话里弹出一张 ERP 表单让用户一次性填齐多个字段（而不是逐个追问）。用于字段较多的新建/录入场景"
+ "（如新建报价、新建客户）。入参 = 实体/单据类型（如 报价 / 客户）。用户填完提交后，你再用 proposeCreate 生成待确认的新增。")
public String collectForm(@P("要新建的实体/单据类型，如 报价 / 客户 / 物料") String entityKeyword) {
if (entityKeyword == null || entityKeyword.isBlank()) {
return err("缺少实体类型。");
}
Map<String, Object> form = resolver.resolveMasterForm(entityKeyword.trim());
if (form == null) {
return err("找不到「" + entityKeyword + "」对应的可新建表单。");
}
String formId = String.valueOf(form.get("sFormId"));
String moduleId = String.valueOf(form.get("sModuleId"));
if (!identity.canAccessModule(moduleId)) {
return err("你没有新建「" + entityKeyword + "」的权限。");
}
List<Map<String, Object>> cols;
try {
cols = jdbc.queryForList(
"SELECT sName, sChinese, sControlName, bNotEmpty, sDefault, sChineseDropDown " +
"FROM gdsconfigformslave WHERE sParentId=? AND bVisible=1 AND IFNULL(sName,'')<>'' " +
"AND IFNULL(bReadonly,0)=0 ORDER BY iOrder LIMIT " + MAX_FIELDS, formId);
} catch (Exception e) {
return err("读取表单结构失败：" + e.getMessage());
}
if (cols.isEmpty()) {
return err("该表单没有可填写的字段配置。");
}
List<Map<String, Object>> fields = new ArrayList<>();
for (Map<String, Object> c : cols) {
String name = str(c.get("sName"));
if (name == null || name.isBlank()) {
continue;
}
Map<String, Object> f = new LinkedHashMap<>();
f.put("name", name);
f.put("label", firstNonBlank(str(c.get("sChinese")), name));
f.put("control", firstNonBlank(str(c.get("sControlName")), "text"));
f.put("required", truthy(c.get("bNotEmpty")));
String def = str(c.get("sDefault"));
if (def != null && !def.isBlank()) {
f.put("default", def);
}
List<String> opts = simpleOptions(str(c.get("sChineseDropDown")));
if (!opts.isEmpty()) {
f.put("options", opts);
}
fields.add(f);
}
if (fields.isEmpty()) {
return err("该表单没有可填写的字段。");
}
Map<String, Object> out = new LinkedHashMap<>();
out.put("type", "form_collect");
out.put("entity", entityKeyword.trim());
out.put("formId", formId);
out.put("moduleId", moduleId);
out.put("title", "新建" + entityKeyword.trim());
out.put("fields", fields);
out.put("message", "请在下方表单里填写，填完点【提交】。");
return toJson(out);
}
/** 只接受“简单枚举型”下拉（顿号/逗号/竖线分隔，且不含 SQL），SQL 驱动的下拉退化为自由输入。 */
private List<String> simpleOptions(String dropdown) {
List<String> out = new ArrayList<>();
if (dropdown == null || dropdown.isBlank()) {
return out;
}
String d = dropdown.trim();
if (d.toLowerCase().contains("select ") || d.length() > 200) {
return out; // SQL 或过长 -> 不当作枚举
}
for (String o : d.split("[、,，|]")) {
String t = o.trim();
if (!t.isEmpty() && out.size() < 30) {
out.add(t);
}
}
return out;
}
private static boolean truthy(Object o) {
if (o == null) {
return false;
}
if (o instanceof Boolean) {
return (Boolean) o;
}
if (o instanceof Number) {
return ((Number) o).intValue() != 0;
}
if (o instanceof byte[]) {
byte[] b = (byte[]) o;
return b.length > 0 && b[0] != 0;
}
String s = o.toString().trim();
return s.equals("1") || s.equalsIgnoreCase("true");
}
private static String firstNonBlank(String a, String b) {
return (a != null && !a.isBlank()) ? a : b;
}
private static String str(Object o) {
return o == null ? null : o.toString();
}
private String err(String msg) {
Map<String, Object> m = new LinkedHashMap<>();
m.put("error", msg);
return toJson(m);
}
private String toJson(Map<String, Object> m) {
try {
return mapper.writeValueAsString(m);
} catch (Exception e) {
return "{\"error\":\"内部错误\"}";
}
}
}