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| 1 | +package io.pivotal.cfenv.boot.genai; |
| 2 | + |
| 3 | +import com.fasterxml.jackson.annotation.JsonIgnoreProperties; |
| 4 | +import com.fasterxml.jackson.annotation.JsonProperty; |
| 5 | +import org.slf4j.Logger; |
| 6 | +import org.slf4j.LoggerFactory; |
| 7 | +import org.springframework.ai.chat.model.ChatModel; |
| 8 | +import org.springframework.ai.document.MetadataMode; |
| 9 | +import org.springframework.ai.embedding.EmbeddingModel; |
| 10 | +import org.springframework.ai.openai.OpenAiChatModel; |
| 11 | +import org.springframework.ai.openai.OpenAiChatOptions; |
| 12 | +import org.springframework.ai.openai.OpenAiEmbeddingModel; |
| 13 | +import org.springframework.ai.openai.OpenAiEmbeddingOptions; |
| 14 | +import org.springframework.ai.openai.api.OpenAiApi; |
| 15 | +import org.springframework.web.client.RestClient; |
| 16 | + |
| 17 | +import java.util.AbstractMap; |
| 18 | +import java.util.List; |
| 19 | +import java.util.Map; |
| 20 | +import java.util.function.Predicate; |
| 21 | + |
| 22 | +public class DefaultGenAILocator implements GenAILocator { |
| 23 | + |
| 24 | + private static final Logger LOGGER = LoggerFactory.getLogger(DefaultGenAILocator.class); |
| 25 | + |
| 26 | + private final String configUrl; |
| 27 | + private final String apiKey; |
| 28 | + private final String apiBase; |
| 29 | + |
| 30 | + public DefaultGenAILocator(String configUrl, String apiKey, String apiBase) { |
| 31 | + this.configUrl = configUrl; |
| 32 | + this.apiKey = apiKey; |
| 33 | + this.apiBase = apiBase; |
| 34 | + } |
| 35 | + |
| 36 | + @Override |
| 37 | + public List<String> getModelNames() { |
| 38 | + return getModelNamesByCapability(null); |
| 39 | + } |
| 40 | + |
| 41 | + @Override |
| 42 | + public List<String> getModelNamesByCapability(String capability) { |
| 43 | + return getModelNamesByCapabilityAndLabels(capability, Map.of()); |
| 44 | + } |
| 45 | + |
| 46 | + @Override |
| 47 | + public List<String> getModelNamesByLabels(Map<String, String> labels) { |
| 48 | + return getModelNamesByCapabilityAndLabels(null, labels); |
| 49 | + } |
| 50 | + |
| 51 | + @Override |
| 52 | + public List<String> getModelNamesByCapabilityAndLabels( |
| 53 | + String capability, Map<String, String> labels) { |
| 54 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 55 | + |
| 56 | + return models.stream() |
| 57 | + .filter(filterModelConnectivityOnCapability(capability)) |
| 58 | + .filter(filterModelConnectivityOnLabels(labels)) |
| 59 | + .map(a -> a.name) |
| 60 | + .toList(); |
| 61 | + } |
| 62 | + |
| 63 | + @Override |
| 64 | + public ChatModel getChatModelByName(String name) { |
| 65 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 66 | + |
| 67 | + return models.stream() |
| 68 | + .filter(filterModelConnectivityOnCapability("CHAT")) |
| 69 | + .filter(c -> c.name().equals(name)) |
| 70 | + .map(DefaultGenAILocator::createChatModel) |
| 71 | + .findFirst() |
| 72 | + .orElseThrow( |
| 73 | + () -> new RuntimeException("Unable to find chat model with name '" + name + "'")); |
| 74 | + } |
| 75 | + |
| 76 | + @Override |
| 77 | + public List<ChatModel> getChatModelsByLabels(Map<String, String> labels) { |
| 78 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 79 | + |
| 80 | + return models.stream() |
| 81 | + .filter(filterModelConnectivityOnCapability("CHAT")) |
| 82 | + .filter(filterModelConnectivityOnLabels(labels)) |
| 83 | + .map(DefaultGenAILocator::createChatModel) |
| 84 | + .toList(); |
| 85 | + } |
| 86 | + |
| 87 | + @Override |
| 88 | + public ChatModel getFirstAvailableChatModel() { |
| 89 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 90 | + |
| 91 | + return models.stream() |
| 92 | + .filter(filterModelConnectivityOnCapability("CHAT")) |
| 93 | + .map(DefaultGenAILocator::createChatModel) |
| 94 | + .findFirst() |
| 95 | + .orElseThrow(() -> new RuntimeException("Unable to find first chat model")); |
| 96 | + } |
| 97 | + |
| 98 | + @Override |
| 99 | + public ChatModel getFirstAvailableChatModelByLabels(Map<String, String> labels) { |
| 100 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 101 | + |
| 102 | + return models.stream() |
| 103 | + .filter(filterModelConnectivityOnCapability("CHAT")) |
| 104 | + .filter(filterModelConnectivityOnLabels(labels)) |
| 105 | + .map(DefaultGenAILocator::createChatModel) |
| 106 | + .findFirst() |
| 107 | + .orElseThrow(() -> new RuntimeException("Unable to find first chat model")); |
| 108 | + } |
| 109 | + |
| 110 | + @Override |
| 111 | + public List<ChatModel> getToolModelsByLabels(Map<String, String> labels) { |
| 112 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 113 | + |
| 114 | + return models.stream() |
| 115 | + .filter(filterModelConnectivityOnCapability("TOOLS")) |
| 116 | + .filter(filterModelConnectivityOnLabels(labels)) |
| 117 | + .map(DefaultGenAILocator::createChatModel) |
| 118 | + .toList(); |
| 119 | + } |
| 120 | + |
| 121 | + @Override |
| 122 | + public ChatModel getFirstAvailableToolModel() { |
| 123 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 124 | + |
| 125 | + return models.stream() |
| 126 | + .filter(filterModelConnectivityOnCapability("TOOLS")) |
| 127 | + .map(DefaultGenAILocator::createChatModel) |
| 128 | + .findFirst() |
| 129 | + .orElseThrow(() -> new RuntimeException("Unable to find first tool model")); |
| 130 | + } |
| 131 | + |
| 132 | + @Override |
| 133 | + public ChatModel getFirstAvailableToolModelByLabels(Map<String, String> labels) { |
| 134 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 135 | + |
| 136 | + return models.stream() |
| 137 | + .filter(filterModelConnectivityOnCapability("TOOLS")) |
| 138 | + .filter(filterModelConnectivityOnLabels(labels)) |
| 139 | + .map(DefaultGenAILocator::createChatModel) |
| 140 | + .findFirst() |
| 141 | + .orElseThrow(() -> new RuntimeException("Unable to find first tool model")); |
| 142 | + } |
| 143 | + |
| 144 | + private static ChatModel createChatModel(ModelConnectivity c) { |
| 145 | + OpenAiApi api = OpenAiApi.builder().apiKey(c.apiKey()).baseUrl(c.apiBase()).build(); |
| 146 | + return OpenAiChatModel.builder() |
| 147 | + .defaultOptions(OpenAiChatOptions.builder().model(c.name()).build()) |
| 148 | + .openAiApi(api) |
| 149 | + .build(); |
| 150 | + } |
| 151 | + |
| 152 | + @Override |
| 153 | + public EmbeddingModel getEmbeddingModelByName(String name) { |
| 154 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 155 | + |
| 156 | + return models.stream() |
| 157 | + .filter(filterModelConnectivityOnCapability("EMBEDDING")) |
| 158 | + .filter(c -> c.name().equals(name)) |
| 159 | + .map(DefaultGenAILocator::createEmbeddingModel) |
| 160 | + .findFirst() |
| 161 | + .orElseThrow( |
| 162 | + () -> new RuntimeException("Unable to find embedding model with name '" + name + "'")); |
| 163 | + } |
| 164 | + |
| 165 | + @Override |
| 166 | + public List<EmbeddingModel> getEmbeddingModelsByLabels(Map<String, String> labels) { |
| 167 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 168 | + |
| 169 | + return models.stream() |
| 170 | + .filter(filterModelConnectivityOnCapability("EMBEDDING")) |
| 171 | + .filter(filterModelConnectivityOnLabels(labels)) |
| 172 | + .map(DefaultGenAILocator::createEmbeddingModel) |
| 173 | + .toList(); |
| 174 | + } |
| 175 | + |
| 176 | + @Override |
| 177 | + public EmbeddingModel getFirstAvailableEmbeddingModel() { |
| 178 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 179 | + |
| 180 | + return models.stream() |
| 181 | + .filter(filterModelConnectivityOnCapability("EMBEDDING")) |
| 182 | + .map(DefaultGenAILocator::createEmbeddingModel) |
| 183 | + .findFirst() |
| 184 | + .orElseThrow(() -> new RuntimeException("Unable to find first embedding model")); |
| 185 | + } |
| 186 | + |
| 187 | + @Override |
| 188 | + public EmbeddingModel getFirstAvailableEmbeddingModelByLabels(Map<String, String> labels) { |
| 189 | + List<ModelConnectivity> models = getAllModelConnectivityDetails(); |
| 190 | + |
| 191 | + return models.stream() |
| 192 | + .filter(filterModelConnectivityOnCapability("EMBEDDING")) |
| 193 | + .filter(filterModelConnectivityOnLabels(labels)) |
| 194 | + .map(DefaultGenAILocator::createEmbeddingModel) |
| 195 | + .findFirst() |
| 196 | + .orElseThrow(() -> new RuntimeException("Unable to find first embedding model")); |
| 197 | + } |
| 198 | + |
| 199 | + private static EmbeddingModel createEmbeddingModel(ModelConnectivity c) { |
| 200 | + OpenAiApi api = OpenAiApi.builder().apiKey(c.apiKey()).baseUrl(c.apiBase()).build(); |
| 201 | + return new OpenAiEmbeddingModel( |
| 202 | + api, MetadataMode.EMBED, OpenAiEmbeddingOptions.builder().model(c.name()).build()); |
| 203 | + } |
| 204 | + |
| 205 | + @Override |
| 206 | + public List<McpConnectivity> getMcpServers() { |
| 207 | + return getAllMcpConnectivityDetails(); |
| 208 | + } |
| 209 | + |
| 210 | + private List<ModelConnectivity> getAllModelConnectivityDetails() { |
| 211 | + ConfigEndpoint e = getEndpointConfig(); |
| 212 | + return e.advertisedModels |
| 213 | + .stream() |
| 214 | + .map( a -> |
| 215 | + new ModelConnectivity( |
| 216 | + a.name(), |
| 217 | + a.capabilities(), |
| 218 | + a.labels(), |
| 219 | + apiKey, |
| 220 | + apiBase + e.wireFormat().toLowerCase()) |
| 221 | + ) |
| 222 | + .toList(); |
| 223 | + } |
| 224 | + |
| 225 | + private List<McpConnectivity> getAllMcpConnectivityDetails() { |
| 226 | + return getEndpointConfig() |
| 227 | + .advertisedMcpServers |
| 228 | + .stream() |
| 229 | + .map(m -> new McpConnectivity(m.url())) |
| 230 | + .toList(); |
| 231 | + } |
| 232 | + |
| 233 | + private ConfigEndpoint getEndpointConfig() { |
| 234 | + RestClient client = RestClient.builder().build(); |
| 235 | + return client |
| 236 | + .get() |
| 237 | + .uri(configUrl) |
| 238 | + .header("Authorization", "Bearer " + apiKey) |
| 239 | + .retrieve() |
| 240 | + .body(ConfigEndpoint.class); |
| 241 | + } |
| 242 | + |
| 243 | + private Predicate<ModelConnectivity> filterModelConnectivityOnLabels(Map<String, String> labels) { |
| 244 | + return modelConnectivity -> { |
| 245 | + if (labels == null || labels.isEmpty()) { |
| 246 | + return true; |
| 247 | + } |
| 248 | + |
| 249 | + if (modelConnectivity.labels() == null) { |
| 250 | + return false; |
| 251 | + } |
| 252 | + |
| 253 | + return modelConnectivity.labels().entrySet().containsAll(labels.entrySet()); |
| 254 | + }; |
| 255 | + } |
| 256 | + |
| 257 | + private Predicate<ModelConnectivity> filterModelConnectivityOnCapability(String capability) { |
| 258 | + return modelConnectivity -> { |
| 259 | + if (capability == null || capability.isEmpty()) { |
| 260 | + return true; |
| 261 | + } |
| 262 | + |
| 263 | + if (modelConnectivity.capabilities() == null) { |
| 264 | + return false; |
| 265 | + } |
| 266 | + |
| 267 | + return modelConnectivity.capabilities().contains(capability); |
| 268 | + }; |
| 269 | + } |
| 270 | + |
| 271 | + @JsonIgnoreProperties(ignoreUnknown = true) |
| 272 | + private record ModelConnectivity( |
| 273 | + String name, |
| 274 | + List<String> capabilities, |
| 275 | + Map<String, String> labels, |
| 276 | + String apiKey, |
| 277 | + String apiBase) {} |
| 278 | + |
| 279 | + @JsonIgnoreProperties(ignoreUnknown = true) |
| 280 | + private record ConfigEndpoint( |
| 281 | + @JsonProperty("name") String name, |
| 282 | + @JsonProperty("description") String description, |
| 283 | + @JsonProperty("wireFormat") String wireFormat, |
| 284 | + @JsonProperty("advertisedModels") List<ConfigAdvertisedModel> advertisedModels, |
| 285 | + @JsonProperty("advertisedMcpServers") List<ConfigAdvertisedMcpServer> advertisedMcpServers) {} |
| 286 | + |
| 287 | + @JsonIgnoreProperties(ignoreUnknown = true) |
| 288 | + private record ConfigAdvertisedModel( |
| 289 | + @JsonProperty("name") String name, |
| 290 | + @JsonProperty("description") String description, |
| 291 | + @JsonProperty("capabilities") List<String> capabilities, |
| 292 | + @JsonProperty("labels") Map<String, String> labels) {} |
| 293 | + |
| 294 | + @JsonIgnoreProperties(ignoreUnknown = true) |
| 295 | + private record ConfigAdvertisedMcpServer(@JsonProperty("url") String url) {} |
| 296 | +} |
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