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agents-flex-llm/agents-flex-llm-deepseek/src/main/java/com/agentsflex/llm/deepseek/DeepseekLlm.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.deepseek;
+
+import com.agentsflex.core.document.Document;
+import com.agentsflex.core.llm.BaseLlm;
+import com.agentsflex.core.llm.ChatOptions;
+import com.agentsflex.core.llm.StreamResponseListener;
+import com.agentsflex.core.llm.client.BaseLlmClientListener;
+import com.agentsflex.core.llm.client.HttpClient;
+import com.agentsflex.core.llm.client.LlmClient;
+import com.agentsflex.core.llm.client.LlmClientListener;
+import com.agentsflex.core.llm.client.impl.SseClient;
+import com.agentsflex.core.llm.embedding.EmbeddingOptions;
+import com.agentsflex.core.llm.response.AiMessageResponse;
+import com.agentsflex.core.parser.AiMessageParser;
+import com.agentsflex.core.prompt.Prompt;
+import com.agentsflex.core.store.VectorData;
+import com.agentsflex.core.util.LogUtil;
+import com.agentsflex.core.util.StringUtil;
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONObject;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.Consumer;
+
+/**
+ * @author huangjf
+ * @version : v1.0
+ */
+public class DeepseekLlm extends BaseLlm<DeepseekConfig> {
+
+    private final Map<String, String> headers = new HashMap<>();
+    private final HttpClient httpClient = new HttpClient();
+    private final AiMessageParser aiMessageParser = DeepseekLlmUtil.getAiMessageParser(false);
+    private final AiMessageParser streamMessageParser = DeepseekLlmUtil.getAiMessageParser(true);
+
+    public DeepseekLlm(DeepseekConfig config) {
+        super(config);
+        headers.put("Content-Type", "application/json");
+        headers.put("Accept", "application/json");
+        headers.put("Authorization", "Bearer " + getConfig().getApiKey());
+    }
+
+    public static DeepseekLlm of(String apiKey) {
+        DeepseekConfig config = new DeepseekConfig();
+        config.setApiKey(apiKey);
+        return new DeepseekLlm(config);
+    }
+
+    @Override
+    public AiMessageResponse chat(Prompt prompt, ChatOptions options) {
+
+        Consumer<Map<String, String>> headersConfig = config.getHeadersConfig();
+        if (headersConfig != null) {
+            headersConfig.accept(headers);
+        }
+
+        String payload = DeepseekLlmUtil.promptToPayload(prompt, config, options, false);
+        String endpoint = config.getEndpoint();
+        String response = httpClient.post(endpoint + "/chat/completions", headers, payload);
+
+        if (config.isDebug()) {
+            LogUtil.println(">>>>receive payload:" + response);
+        }
+
+        if (StringUtil.noText(response)) {
+            return AiMessageResponse.error(prompt, response, "no content for response.");
+        }
+
+        JSONObject jsonObject = JSON.parseObject(response);
+        JSONObject error = jsonObject.getJSONObject("error");
+
+        AiMessageResponse messageResponse = new AiMessageResponse(prompt, response, aiMessageParser.parse(jsonObject));
+        if (error != null && !error.isEmpty()) {
+            messageResponse.setError(true);
+            messageResponse.setErrorMessage(error.getString("message"));
+            messageResponse.setErrorType(error.getString("type"));
+            messageResponse.setErrorCode(error.getString("code"));
+        }
+
+        return messageResponse;
+    }
+
+    @Override
+    public void chatStream(Prompt prompt, StreamResponseListener streamResponseListener, ChatOptions chatOptions) {
+        LlmClient llmClient = new SseClient();
+        String payload = DeepseekLlmUtil.promptToPayload(prompt, config, chatOptions, true);
+        String endpoint = config.getEndpoint();
+        LlmClientListener clientListener = new BaseLlmClientListener(this, llmClient, streamResponseListener, prompt, streamMessageParser);
+        llmClient.start(endpoint + "/chat/completions", headers, payload, clientListener, config);
+    }
+
+    @Override
+    public void chatStream(Prompt prompt, StreamResponseListener streamResponseListener) {
+        chatStream(prompt, streamResponseListener, ChatOptions.DEFAULT);
+    }
+
+    @Override
+    public VectorData embed(Document document, EmbeddingOptions embeddingOptions) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+}