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agents-flex-llm/agents-flex-llm-chatglm/src/main/java/com/agentsflex/llm/chatglm/ChatglmLlmUtil.java

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+/*
+ *  Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  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
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  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 com.agentsflex.llm.chatglm;
+
+import com.agentsflex.core.llm.ChatOptions;
+import com.agentsflex.core.message.HumanMessage;
+import com.agentsflex.core.message.Message;
+import com.agentsflex.core.message.MessageStatus;
+import com.agentsflex.core.parser.AiMessageParser;
+import com.agentsflex.core.parser.impl.DefaultAiMessageParser;
+import com.agentsflex.core.prompt.DefaultPromptFormat;
+import com.agentsflex.core.prompt.Prompt;
+import com.agentsflex.core.prompt.PromptFormat;
+import com.agentsflex.core.util.Maps;
+import com.agentsflex.core.util.MessageUtil;
+import com.alibaba.fastjson.JSON;
+import io.jsonwebtoken.JwtBuilder;
+import io.jsonwebtoken.Jwts;
+import io.jsonwebtoken.security.MacAlgorithm;
+
+import javax.crypto.SecretKey;
+import javax.crypto.spec.SecretKeySpec;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+public class ChatglmLlmUtil {
+
+    private static final PromptFormat promptFormat = new DefaultPromptFormat();
+
+    private static final String id = "HS256";
+    private static final String jcaName = "HmacSHA256";
+    private static final MacAlgorithm macAlgorithm;
+
+    static {
+        try {
+            //create a custom MacAlgorithm with a custom minKeyBitLength
+            int minKeyBitLength = 128;
+            Class<?> c = Class.forName("io.jsonwebtoken.impl.security.DefaultMacAlgorithm");
+            Constructor<?> ctor = c.getDeclaredConstructor(String.class, String.class, int.class);
+            ctor.setAccessible(true);
+            macAlgorithm = (MacAlgorithm) ctor.newInstance(id, jcaName, minKeyBitLength);
+        } catch (ClassNotFoundException | NoSuchMethodException | InstantiationException | IllegalAccessException |
+                 InvocationTargetException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+
+    public static String createAuthorizationToken(ChatglmLlmConfig config) {
+        Map<String, Object> headers = new HashMap<>();
+        headers.put("alg", "HS256");
+        headers.put("sign_type", "SIGN");
+
+        long nowMillis = System.currentTimeMillis();
+        String[] idAndSecret = config.getApiKey().split("\\.");
+
+        Map<String, Object> payloadMap = new HashMap<>();
+        payloadMap.put("api_key", idAndSecret[0]);
+        payloadMap.put("exp", nowMillis + 3600000);
+        payloadMap.put("timestamp", nowMillis);
+        String payloadJsonString = JSON.toJSONString(payloadMap);
+
+        byte[] bytes = idAndSecret[1].getBytes();
+        SecretKey secretKey = new SecretKeySpec(bytes, jcaName);
+
+        JwtBuilder builder = Jwts.builder()
+            .content(payloadJsonString)
+            .header().add(headers).and()
+            .signWith(secretKey, macAlgorithm);
+        return builder.compact();
+    }
+
+    public static AiMessageParser getAiMessageParser(boolean isStream) {
+        return DefaultAiMessageParser.getChatGPTMessageParser(isStream);
+    }
+
+
+    public static String promptToPayload(Prompt prompt, ChatglmLlmConfig config, boolean withStream, ChatOptions options) {
+        List<Message> messages = prompt.toMessages();
+        HumanMessage message = MessageUtil.findLastHumanMessage(messages);
+        return Maps.of("model", Optional.ofNullable(options.getModel()).orElse(config.getModel()))
+            .set("messages", promptFormat.toMessagesJsonObject(messages))
+            .setIf(withStream, "stream", true)
+            .setIfNotEmpty("tools", promptFormat.toFunctionsJsonObject(message))
+            .setIfContainsKey("tools", "tool_choice", MessageUtil.getToolChoice(message))
+            .setIfNotNull("top_p", options.getTopP())
+            .setIfNotEmpty("stop", options.getStop())
+            .setIf(map -> !map.containsKey("tools") && options.getTemperature() > 0, "temperature", options.getTemperature())
+            .setIf(map -> !map.containsKey("tools") && options.getMaxTokens() != null, "max_tokens", options.getMaxTokens())
+            .setIfNotEmpty(options.getExtra())
+            .toJSON();
+    }
+
+
+    public static MessageStatus parseMessageStatus(String status) {
+        return "stop".equals(status) ? MessageStatus.END : MessageStatus.MIDDLE;
+    }
+
+
+}