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core/src/main/kotlin/io/github/alexcheng1982/agentappbuilder/core/observation/Observation.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| package io.github.alexcheng1982.agentappbuilder.core.observation | ||
|
|
||
| import io.micrometer.common.KeyValue | ||
| import io.micrometer.common.KeyValues | ||
| import io.micrometer.common.docs.KeyName | ||
| import io.micrometer.observation.Observation | ||
| import io.micrometer.observation.ObservationConvention | ||
| import io.micrometer.observation.ObservationRegistry | ||
| import io.micrometer.observation.docs.ObservationDocumentation | ||
| import io.micrometer.observation.transport.RequestReplySenderContext | ||
| import org.springframework.ai.chat.ChatClient | ||
| import org.springframework.ai.chat.ChatResponse | ||
| import org.springframework.ai.chat.prompt.Prompt | ||
|
|
||
| enum class ChatClientObservationDocumentation : ObservationDocumentation { | ||
| CHAT_CLIENT_CALL { | ||
| override fun getDefaultConvention(): Class<out ObservationConvention<out Observation.Context>>? { | ||
| return DefaultChatClientObservationConvention::class.java | ||
| } | ||
|
|
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| override fun getLowCardinalityKeyNames(): Array<KeyName> { | ||
| return LowCardinalityKeyNames.values().toList().toTypedArray() | ||
| } | ||
|
|
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| override fun getHighCardinalityKeyNames(): Array<KeyName> { | ||
| return HighCardinalityKeyNames.values().toList().toTypedArray() | ||
| } | ||
| }; | ||
|
|
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| enum class LowCardinalityKeyNames : KeyName | ||
|
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| enum class HighCardinalityKeyNames : KeyName { | ||
| PROMPT_CONTENT { | ||
| override fun asString(): String { | ||
| return "prompt.content" | ||
| } | ||
| }, | ||
| RESPONSE_CONTENT { | ||
| override fun asString(): String { | ||
| return "response.content" | ||
| } | ||
|
|
||
| } | ||
| } | ||
| } | ||
|
|
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| class DefaultChatClientObservationConvention(private val name: String? = null) : | ||
| ChatClientObservationConvention { | ||
| private val defaultName = "chat.client.call" | ||
|
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| private val promptContentNone: KeyValue = KeyValue.of( | ||
| ChatClientObservationDocumentation.HighCardinalityKeyNames.PROMPT_CONTENT, | ||
| KeyValue.NONE_VALUE | ||
| ) | ||
|
|
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| private val responseContentNone: KeyValue = KeyValue.of( | ||
| ChatClientObservationDocumentation.HighCardinalityKeyNames.RESPONSE_CONTENT, | ||
| KeyValue.NONE_VALUE | ||
| ) | ||
|
|
||
| override fun getName(): String { | ||
| return name ?: defaultName | ||
| } | ||
|
|
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| override fun getLowCardinalityKeyValues(context: ChatClientRequestObservationContext): KeyValues { | ||
| return KeyValues.empty() | ||
| } | ||
|
|
||
| override fun getHighCardinalityKeyValues(context: ChatClientRequestObservationContext): KeyValues { | ||
| return KeyValues.of(promptContent(context), responseContent(context)) | ||
| } | ||
|
|
||
| private fun promptContent(context: ChatClientRequestObservationContext): KeyValue { | ||
| return context.carrier?.contents?.let { content -> | ||
| KeyValue.of( | ||
| ChatClientObservationDocumentation.HighCardinalityKeyNames.PROMPT_CONTENT, | ||
| content | ||
| ) | ||
| } ?: promptContentNone | ||
| } | ||
|
|
||
| private fun responseContent(context: ChatClientRequestObservationContext): KeyValue { | ||
| return context.response?.let { response -> | ||
| response.results.joinToString("\n") { it.output?.content ?: "" } | ||
| .let { content -> | ||
| KeyValue.of( | ||
| ChatClientObservationDocumentation.HighCardinalityKeyNames.RESPONSE_CONTENT, | ||
| content | ||
| ) | ||
| } | ||
| } ?: responseContentNone | ||
| } | ||
| } | ||
|
|
||
| interface ChatClientObservationConvention : | ||
| ObservationConvention<ChatClientRequestObservationContext> { | ||
| override fun supportsContext(context: Observation.Context): Boolean { | ||
| return context is ChatClientRequestObservationContext | ||
| } | ||
| } | ||
|
|
||
|
|
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| class ChatClientRequestObservationContext(val prompt: Prompt) : | ||
| RequestReplySenderContext<Prompt, ChatResponse>({ _, _, _ -> | ||
| run {} | ||
| }) { | ||
| init { | ||
| setCarrier(prompt) | ||
| } | ||
| } | ||
|
|
||
| class InstrumentedChatClient( | ||
| private val chatClient: ChatClient, | ||
| private val observationRegistry: ObservationRegistry? = null, | ||
| ) : ChatClient { | ||
| override fun call(prompt: Prompt): ChatResponse { | ||
| val action = { chatClient.call(prompt) } | ||
| return observationRegistry?.let { registry -> | ||
| instrumentedCall(prompt, action, registry) | ||
| } ?: action.invoke() | ||
| } | ||
|
|
||
| private fun instrumentedCall( | ||
| prompt: Prompt, | ||
| action: () -> ChatResponse, | ||
| registry: ObservationRegistry | ||
| ): ChatResponse { | ||
| val observationContext = | ||
| ChatClientRequestObservationContext(prompt) | ||
| val observation = | ||
| ChatClientObservationDocumentation.CHAT_CLIENT_CALL.observation( | ||
| null, | ||
| DefaultChatClientObservationConvention(), | ||
| { observationContext }, | ||
| registry | ||
| ).start() | ||
| return try { | ||
| observation.openScope().use { | ||
| val response = action.invoke() | ||
| observationContext.setResponse(response) | ||
| response | ||
| } | ||
| } catch (e: Exception) { | ||
| observation.error(e) | ||
| throw e | ||
| } finally { | ||
| observation.stop() | ||
| } | ||
| } | ||
| } |
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