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Merged
phillip-kruger merged 1 commit into from
Oct 1, 2025
Merged

Docs Search api #29

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144 changes: 62 additions & 82 deletions src/main/java/org/chappiebot/ChappieService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -6,11 +6,13 @@
import dev.langchain4j.mcp.client.transport.McpTransport;
import dev.langchain4j.mcp.client.transport.http.StreamableHttpMcpTransport;
import dev.langchain4j.mcp.client.transport.stdio.StdioMcpTransport;

import java.time.Duration;
import java.util.Optional;

import org.chappiebot.assist.Assistant;
import org.chappiebot.exception.ExceptionAssistant;
import org.chappiebot.rag.RetrievalProvider;
import org.eclipse.microprofile.config.inject.ConfigProperty;
import dev.langchain4j.memory.chat.ChatMemoryProvider;
import dev.langchain4j.memory.chat.MessageWindowChatMemory;
Expand All @@ -30,15 +32,13 @@

import jakarta.inject.Inject;
import dev.langchain4j.rag.RetrievalAugmentor;
import dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever;
import dev.langchain4j.model.embedding.EmbeddingModel;
import dev.langchain4j.model.embedding.onnx.bgesmallenv15q.BgeSmallEnV15QuantizedEmbeddingModel;
import dev.langchain4j.store.embedding.filter.comparison.ContainsString;
import dev.langchain4j.rag.DefaultRetrievalAugmentor;
import dev.langchain4j.store.memory.chat.ChatMemoryStore;
import jakarta.annotation.PreDestroy;

import java.util.List;
import java.util.Map;

import org.chappiebot.rag.RagRequestContext;
import org.chappiebot.store.StoreCreator;

Expand All @@ -64,7 +64,7 @@ public class ChappieService {

@ConfigProperty(name = "chappie.temperature", defaultValue = "0.2")
double temperature;

// OpenAI

@ConfigProperty(name = "chappie.openai.api-key")
Expand All @@ -86,43 +86,40 @@ public class ChappieService {

// RAG

@ConfigProperty(name = "chappie.rag.enabled", defaultValue = "true")
boolean ragEnabled;

@ConfigProperty(name = "chappie.rag.results.max", defaultValue = "4")
int ragMaxResults;

@Inject
RetrievalProvider retrievalProvider;

// Store

@ConfigProperty(name = "chappie.store.messages.max", defaultValue = "30")
int maxMessages;


@ConfigProperty(name = "quarkus.application.version")
String appVersion;

// MCP
@ConfigProperty(name = "chappie.mcp.servers")
Optional<List<String>> mcpServers;

@Inject
StoreCreator storeCreator;

@Inject
ChatMemoryStore chatMemoryStore;
@Inject

@Inject
RagRequestContext ragRequestContext;

private RetrievalAugmentor retrievalAugmentor;
private final List<McpClient> mcpClients = new java.util.concurrent.CopyOnWriteArrayList<>();
private McpToolProvider mcpToolProvider = null;

private ChatRequestParameters chatRequestParameters = DefaultChatRequestParameters.builder()
.toolChoice(ToolChoice.AUTO)
.responseFormat(ResponseFormat.JSON)
.build();
.toolChoice(ToolChoice.AUTO)
.responseFormat(ResponseFormat.JSON)
.build();

@PostConstruct
public void init() {
if (openaiKey.isPresent() || openaiBaseUrl.isPresent()) {
Expand All @@ -138,10 +135,13 @@ public void init() {
void shutdown() {
// Be nice and close transports/clients
for (McpClient c : mcpClients) {
try { c.close(); } catch (Exception ignored) {}
try {
c.close();
} catch (Exception ignored) {
}
}
}

private void loadOpenAiModel() {

openaiBaseUrl.ifPresentOrElse(
Expand All @@ -151,10 +151,9 @@ private void loadOpenAiModel() {

Log.info("CHAPPiE timeout set to " + timeout);
Log.info("CHAPPiE temperature set to " + temperature);
if(openaiKey.isEmpty())Log.warn("CHAPPiE is using the default 'demo' api key");



if (openaiKey.isEmpty()) Log.warn("CHAPPiE is using the default 'demo' api key");


OpenAiChatModel.OpenAiChatModelBuilder builder = OpenAiChatModel.builder()
.logRequests(logRequest)
.logResponses(logResponse)
Expand All @@ -163,13 +162,13 @@ private void loadOpenAiModel() {
.timeout(timeout)
.temperature(temperature)
.responseFormat("json_object");

if (!mcpServers.isEmpty() && !mcpServers.get().isEmpty()) {
builder = builder
.defaultRequestParameters(chatRequestParameters)
.parallelToolCalls(false);
.defaultRequestParameters(chatRequestParameters)
.parallelToolCalls(false);
}

if (openaiBaseUrl.isPresent()) {
builder = builder.baseUrl(openaiBaseUrl.get());
}
Expand All @@ -181,7 +180,7 @@ private void loadOllamaModel() {
Log.info("CHAPPiE is using Ollama " + ollamaModelName + "(" + ollamaBaseUrl + ")");
Log.info("CHAPPiE timeout set to " + timeout);
Log.info("CHAPPiE temperature set to " + temperature);

OllamaChatModel.OllamaChatModelBuilder builder = OllamaChatModel.builder()
.logRequests(logRequest)
.logResponses(logResponse)
Expand All @@ -190,21 +189,21 @@ private void loadOllamaModel() {
.timeout(timeout)
.temperature(temperature)
.responseFormat(ResponseFormat.JSON);

if (!mcpServers.isEmpty() && !mcpServers.get().isEmpty()) {
builder = builder
.defaultRequestParameters(chatRequestParameters);
.defaultRequestParameters(chatRequestParameters);
}

this.chatModel = builder.build();
}

@Produces
public ExceptionAssistant getExceptionAssistant() {

AiServices<ExceptionAssistant> assistantBuilder = AiServices.builder(ExceptionAssistant.class)
.chatModel(chatModel);

if (retrievalAugmentor != null) {
assistantBuilder.retrievalAugmentor(retrievalAugmentor);
}
Expand All @@ -213,14 +212,14 @@ public ExceptionAssistant getExceptionAssistant() {
}
return assistantBuilder.build();
}

@Produces
public Assistant getAssistant() {

AiServices<Assistant> assistantBuilder = AiServices.builder(Assistant.class)
.chatModel(chatModel)
.chatMemoryProvider(chatMemoryProvider());

if (retrievalAugmentor != null) {
assistantBuilder.retrievalAugmentor(retrievalAugmentor);
}
Expand All @@ -235,44 +234,26 @@ private void enableRagIfPossible() {
Log.info("CHAPPiE RAG not available; continuing without RAG.");
return;
}

// TODO: This should use some local emmeding model
if (openaiKey.isEmpty() && openaiBaseUrl.isEmpty()) {
Log.warn("CHAPPiE RAG available but no OpenAI configuration for embeddings; continuing without RAG.");
return;
}

if(!ragEnabled) {
Log.warn("CHAPPiE RAG disabled by the user");
return;
}

EmbeddingModel embeddingModel = new BgeSmallEnV15QuantizedEmbeddingModel();

var retriever = EmbeddingStoreContentRetriever.builder()
.embeddingStore(storeCreator.getStore().get())
.embeddingModel(embeddingModel)
.maxResults(ragMaxResults)
.dynamicFilter((t) -> {
Map<String, String> variables = ragRequestContext.getVariables();
if(variables!=null && !variables.isEmpty() && variables.containsKey("extension")){
String extension = variables.get("extension");
if(extension!=null && !extension.equalsIgnoreCase("any")){
Log.info("Narrowing to [" + extension + "]");
return new ContainsString("extensions_csv_padded", "," + extension + ",");
}
}
return null;
})
.build();

this.retrievalAugmentor = DefaultRetrievalAugmentor.builder()
.contentRetriever(retriever)
.build();

Log.info("CHAPPiE RAG is enabled with " + ragMaxResults + " max results");
this.retrievalAugmentor = retrievalProvider.getRetrievalAugmentor((t) -> {
Map<String, String> variables = ragRequestContext.getVariables();
if (variables != null && !variables.isEmpty() && variables.containsKey("extension")) {
String extension = variables.get("extension");
if (extension != null && !extension.equalsIgnoreCase("any")) {
Log.info("Narrowing to [" + extension + "]");
return new ContainsString("extensions_csv_padded", "," + extension + ",");
}
}
return null;
});
}

private void enableMcpIfConfigured() {
if (mcpServers.isEmpty() || mcpServers.get().isEmpty()) {
Log.info("CHAPPiE MCP: no servers configured; continuing without MCP.");
Expand Down Expand Up @@ -333,18 +314,17 @@ private void enableMcpIfConfigured() {

Log.infof("CHAPPiE MCP: enabled with %d server(s).", clients.size());
}





private ChatMemoryProvider chatMemoryProvider() {
Log.info("CHAPPiE Chat Memory is enabled with " + maxMessages + " max messages");
return memoryId -> MessageWindowChatMemory.builder()
.id(memoryId)
.maxMessages(maxMessages)
.chatMemoryStore(chatMemoryStore)
.build();
.id(memoryId)
.maxMessages(maxMessages)
.chatMemoryStore(chatMemoryStore)
.build();
}

private String versionOr(String fallback) {
String v = appVersion;
if (v != null && !v.isBlank()) return v;
Expand Down
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