flyrain commented on code in PR #4961: URL: https://github.com/apache/polaris/pull/4961#discussion_r3548274037
########## extensions/semantic-models/src/main/java/org/apache/polaris/service/catalog/semanticmodel/SemanticModelCatalog.java: ########## @@ -0,0 +1,349 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * 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 org.apache.polaris.service.catalog.semanticmodel; + +import com.fasterxml.jackson.databind.JsonNode; +import com.fasterxml.jackson.databind.ObjectMapper; +import com.google.common.base.Splitter; +import java.util.LinkedHashSet; +import java.util.List; +import java.util.Optional; +import java.util.Set; +import java.util.stream.Collectors; +import org.apache.iceberg.catalog.Namespace; +import org.apache.iceberg.catalog.TableIdentifier; +import org.apache.iceberg.exceptions.AlreadyExistsException; +import org.apache.iceberg.exceptions.BadRequestException; +import org.apache.polaris.core.context.CallContext; +import org.apache.polaris.core.entity.CatalogEntity; +import org.apache.polaris.core.entity.PolarisBaseEntity; +import org.apache.polaris.core.entity.PolarisEntity; +import org.apache.polaris.core.entity.PolarisEntitySubType; +import org.apache.polaris.core.entity.PolarisEntityType; +import org.apache.polaris.core.persistence.PolarisMetaStoreManager; +import org.apache.polaris.core.persistence.PolarisResolvedPathWrapper; +import org.apache.polaris.core.persistence.dao.entity.EntityResult; +import org.apache.polaris.core.persistence.dao.entity.ListEntitiesResult; +import org.apache.polaris.core.persistence.pagination.PageToken; +import org.apache.polaris.core.persistence.resolver.PolarisResolutionManifestCatalogView; +import org.apache.polaris.core.persistence.resolver.ResolvedPathKey; +import org.apache.polaris.core.semantic.SemanticModelEntity; +import org.apache.polaris.core.semantic.exceptions.NoSuchSemanticModelException; +import org.apache.polaris.core.semantic.exceptions.SemanticModelVersionMismatchException; +import org.apache.polaris.service.catalog.semanticmodel.types.ListSemanticModelsResponse; +import org.apache.polaris.service.catalog.semanticmodel.types.LoadSemanticModelResponse; +import org.apache.polaris.service.catalog.semanticmodel.types.SemanticModelDocument; +import org.apache.polaris.service.catalog.semanticmodel.types.SemanticModelIdentifier; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Core create/list/load/update/drop logic for OSI semantic models. Mirrors {@link + * org.apache.polaris.service.catalog.policy.PolicyCatalog}: the OSI document body is stored inside + * the entity {@code properties} map, writes resolve every {@code dataset.source} to a {@code + * TABLE_LIKE} entity in the current catalog, and updates use optimistic concurrency on the entity + * version. Document schema validation is a separate concern (see {@link + * SemanticDocumentValidator}). + */ +public class SemanticModelCatalog { + private static final Logger LOGGER = LoggerFactory.getLogger(SemanticModelCatalog.class); + private static final ObjectMapper MAPPER = new ObjectMapper(); + + private final CallContext callContext; + private final PolarisResolutionManifestCatalogView resolvedEntityView; + private final CatalogEntity catalogEntity; + private final long catalogId; + private final PolarisMetaStoreManager metaStoreManager; + + public SemanticModelCatalog( + PolarisMetaStoreManager metaStoreManager, + CallContext callContext, + PolarisResolutionManifestCatalogView resolvedEntityView) { + this.callContext = callContext; + this.resolvedEntityView = resolvedEntityView; + this.catalogEntity = resolvedEntityView.getResolvedCatalogEntity(); + this.catalogId = catalogEntity.getId(); + this.metaStoreManager = metaStoreManager; + } + + public LoadSemanticModelResponse createSemanticModel( + SemanticModelIdentifier identifier, SemanticModelDocument document) { + Namespace namespace = toNamespace(identifier); + PolarisResolvedPathWrapper resolvedParent = + resolvedEntityView.getResolvedPath(ResolvedPathKey.ofNamespace(namespace)); + if (resolvedParent == null) { + // Illegal state because the namespace should've already been in the static resolution set. + throw new IllegalStateException( + String.format("Failed to fetch resolved parent for semantic model '%s'", identifier)); + } + List<PolarisEntity> catalogPath = resolvedParent.getRawFullPath(); + + PolarisResolvedPathWrapper existing = + resolvedEntityView.getPassthroughResolvedPath( + ResolvedPathKey.ofSemanticModel(namespace, identifier.getName()), + PolarisEntitySubType.NULL_SUBTYPE); + if (existing != null && existing.getRawLeafEntity() != null) { + throw new AlreadyExistsException("Semantic model already exists: %s", identifier.getName()); + } + + // Parse the document and resolve its source tables before persisting. + validateDocumentAndSources(document); + + SemanticModelEntity entity = + new SemanticModelEntity.Builder(namespace, identifier.getName()) + .setCatalogId(catalogId) + .setParentId(resolvedParent.getRawLeafEntity().getId()) + .setSpecVersion(document.getVersion()) + .setContent(document.getSemanticModel()) + .setId( + metaStoreManager.generateNewEntityId(callContext.getPolarisCallContext()).getId()) + .setCreateTimestamp(System.currentTimeMillis()) + .build(); + + EntityResult res = + metaStoreManager.createEntityIfNotExists( + callContext.getPolarisCallContext(), PolarisEntity.toCoreList(catalogPath), entity); + if (!res.isSuccess()) { + switch (res.getReturnStatus()) { + case ENTITY_ALREADY_EXISTS -> + throw new AlreadyExistsException( + "Semantic model already exists: %s", identifier.getName()); + default -> + throw new IllegalStateException( + String.format( + "Unknown error status for identifier %s: %s with extraInfo: %s", + identifier, res.getReturnStatus(), res.getExtraInformation())); + } + } + + SemanticModelEntity result = SemanticModelEntity.of(res.getEntity()); + LOGGER.debug("Created semantic model entity {} with identifier {}", result, identifier); + return toLoadResponse(result); + } + + public ListSemanticModelsResponse listSemanticModels(Namespace namespace, PageToken pageToken) { + PolarisResolvedPathWrapper resolvedEntities = + resolvedEntityView.getResolvedPath(ResolvedPathKey.ofNamespace(namespace)); + if (resolvedEntities == null) { + throw new IllegalStateException( + String.format("Failed to fetch resolved namespace '%s'", namespace)); + } + List<PolarisEntity> catalogPath = resolvedEntities.getRawFullPath(); + + ListEntitiesResult result = + metaStoreManager.listEntities( + callContext.getPolarisCallContext(), + PolarisEntity.toCoreList(catalogPath), + PolarisEntityType.SEMANTIC_MODEL, + PolarisEntitySubType.NULL_SUBTYPE, + pageToken); + if (!result.isSuccess()) { + throw new IllegalStateException("Failed to list semantic models in namespace: " + namespace); + } + + // LinkedHashSet keeps the page order stable in the serialized response. + Set<SemanticModelIdentifier> identifiers = + result.getEntities().stream() + .map( + record -> + SemanticModelIdentifier.builder() + .setNamespace(List.of(namespace.levels())) + .setName(record.getName()) + .build()) + .collect(Collectors.toCollection(LinkedHashSet::new)); + return ListSemanticModelsResponse.builder() + .setIdentifiers(identifiers) + .setNextPageToken(result.getPage().encodedResponseToken()) + .build(); + } + + public LoadSemanticModelResponse loadSemanticModel(SemanticModelIdentifier identifier) { + return toLoadResponse(resolveModelOrThrow(identifier)); + } + + public LoadSemanticModelResponse updateSemanticModel( + SemanticModelIdentifier identifier, SemanticModelDocument document, String expectedVersion) { + PolarisResolvedPathWrapper resolvedPath = resolveModelPathOrThrow(identifier); + SemanticModelEntity current = SemanticModelEntity.of(resolvedPath.getRawLeafEntity()); + + String currentVersion = Integer.toString(current.getEntityVersion()); + if (!currentVersion.equals(expectedVersion)) { + throw new SemanticModelVersionMismatchException( + String.format( + "Semantic model version mismatch. Given version is %s, current version is %s", + expectedVersion, currentVersion)); + } + + validateDocumentAndSources(document); + + SemanticModelEntity newEntity = + new SemanticModelEntity.Builder(current) + .setSpecVersion(document.getVersion()) + .setContent(document.getSemanticModel()) + .build(); + + List<PolarisEntity> catalogPath = resolvedPath.getRawParentPath(); + SemanticModelEntity updated = + Optional.ofNullable( + metaStoreManager + .updateEntityPropertiesIfNotChanged( + callContext.getPolarisCallContext(), + PolarisEntity.toCoreList(catalogPath), + newEntity) + .getEntity()) + .map(SemanticModelEntity::of) + .orElse(null); + if (updated == null) { + // Lost the optimistic-concurrency race with a concurrent writer. + throw new SemanticModelVersionMismatchException( + String.format( + "Semantic model %s was modified concurrently; retry after reloading", + identifier.getName())); + } + + return toLoadResponse(updated); + } + + public void dropSemanticModel(SemanticModelIdentifier identifier) { + PolarisResolvedPathWrapper resolvedPath = resolveModelPathOrThrow(identifier); + List<PolarisEntity> catalogPath = resolvedPath.getRawParentPath(); + PolarisBaseEntity entity = resolvedPath.getRawLeafEntity(); + + var result = + metaStoreManager.dropEntityIfExists( + callContext.getPolarisCallContext(), + PolarisEntity.toCoreList(catalogPath), + entity, + java.util.Map.of(), + false); + if (!result.isSuccess()) { + throw new IllegalStateException( + String.format( + "Failed to drop semantic model %s error status: %s with extraInfo: %s", + identifier, result.getReturnStatus(), result.getExtraInformation())); + } + } + + // ---- helpers ---- + + private PolarisResolvedPathWrapper resolveModelPathOrThrow(SemanticModelIdentifier identifier) { + Namespace namespace = toNamespace(identifier); + PolarisResolvedPathWrapper resolved = + resolvedEntityView.getPassthroughResolvedPath( + ResolvedPathKey.ofSemanticModel(namespace, identifier.getName()), + PolarisEntitySubType.NULL_SUBTYPE); + if (resolved == null || resolved.getRawLeafEntity() == null) { + throw new NoSuchSemanticModelException( + String.format("Semantic model does not exist: %s", identifier.getName())); + } + return resolved; + } + + private SemanticModelEntity resolveModelOrThrow(SemanticModelIdentifier identifier) { + return SemanticModelEntity.of(resolveModelPathOrThrow(identifier).getRawLeafEntity()); + } + + /** + * Parses the OSI document body and resolves every {@code dataset.source} to a {@code TABLE_LIKE} + * entity. Shared by create and update. Schema/size validation is a separate concern handled by a + * {@link SemanticDocumentValidator} implementation (not yet wired in this phase). + */ + private void validateDocumentAndSources(SemanticModelDocument document) { + String body = document.getSemanticModel(); + if (body == null || body.isBlank()) { + return; + } + JsonNode semanticModel; + try { + semanticModel = MAPPER.readTree(body); + } catch (com.fasterxml.jackson.core.JsonProcessingException e) { + throw new BadRequestException( + "Field 'semantic_model' is not valid JSON: %s", e.getOriginalMessage()); + } + resolveSourcesOrThrow(semanticModel); + // TODO call the SemanticDocumentValidator when it's ready + } + + /** + * Resolves every {@code dataset.source} in the OSI document to a {@code TABLE_LIKE} entity in the + * current catalog. Fails with 400 and a JSON-Pointer to the offending dataset if any source does + * not resolve. Column-level checks are deferred (F5). + */ + private void resolveSourcesOrThrow(JsonNode semanticModel) { + if (!semanticModel.isArray()) { + return; + } + for (int m = 0; m < semanticModel.size(); m++) { + JsonNode datasets = semanticModel.get(m).get("datasets"); + if (datasets == null || !datasets.isArray()) { + continue; + } + for (int d = 0; d < datasets.size(); d++) { + JsonNode source = datasets.get(d).get("source"); + if (source != null && source.isTextual()) { + String pointer = String.format("/semantic_model/%d/datasets/%d/source", m, d); + resolveSourceOrThrow(source.asText(), pointer); + } + } + } + } + + private void resolveSourceOrThrow(String source, String pointer) { + TableIdentifier tableIdentifier = parseSource(source, pointer); + PolarisResolvedPathWrapper resolved = + resolvedEntityView.getPassthroughResolvedPath( + ResolvedPathKey.ofTableLike(tableIdentifier), PolarisEntitySubType.ANY_SUBTYPE); + if (resolved == null + || resolved.getRawLeafEntity() == null + || resolved.getRawLeafEntity().getType() != PolarisEntityType.TABLE_LIKE) { + throw new BadRequestException( + "Semantic model source '%s' at %s does not resolve to a table or view in catalog '%s'", + source, pointer, catalogEntity.getName()); + } + } + + private TableIdentifier parseSource(String source, String pointer) { + List<String> parts = Splitter.on('.').splitToList(source); Review Comment: fixed in a new commit ########## extensions/semantic-models/src/main/java/org/apache/polaris/service/catalog/semanticmodel/SemanticModelCatalog.java: ########## @@ -0,0 +1,349 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * 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 org.apache.polaris.service.catalog.semanticmodel; + +import com.fasterxml.jackson.databind.JsonNode; +import com.fasterxml.jackson.databind.ObjectMapper; +import com.google.common.base.Splitter; +import java.util.LinkedHashSet; +import java.util.List; +import java.util.Optional; +import java.util.Set; +import java.util.stream.Collectors; +import org.apache.iceberg.catalog.Namespace; +import org.apache.iceberg.catalog.TableIdentifier; +import org.apache.iceberg.exceptions.AlreadyExistsException; +import org.apache.iceberg.exceptions.BadRequestException; +import org.apache.polaris.core.context.CallContext; +import org.apache.polaris.core.entity.CatalogEntity; +import org.apache.polaris.core.entity.PolarisBaseEntity; +import org.apache.polaris.core.entity.PolarisEntity; +import org.apache.polaris.core.entity.PolarisEntitySubType; +import org.apache.polaris.core.entity.PolarisEntityType; +import org.apache.polaris.core.persistence.PolarisMetaStoreManager; +import org.apache.polaris.core.persistence.PolarisResolvedPathWrapper; +import org.apache.polaris.core.persistence.dao.entity.EntityResult; +import org.apache.polaris.core.persistence.dao.entity.ListEntitiesResult; +import org.apache.polaris.core.persistence.pagination.PageToken; +import org.apache.polaris.core.persistence.resolver.PolarisResolutionManifestCatalogView; +import org.apache.polaris.core.persistence.resolver.ResolvedPathKey; +import org.apache.polaris.core.semantic.SemanticModelEntity; +import org.apache.polaris.core.semantic.exceptions.NoSuchSemanticModelException; +import org.apache.polaris.core.semantic.exceptions.SemanticModelVersionMismatchException; +import org.apache.polaris.service.catalog.semanticmodel.types.ListSemanticModelsResponse; +import org.apache.polaris.service.catalog.semanticmodel.types.LoadSemanticModelResponse; +import org.apache.polaris.service.catalog.semanticmodel.types.SemanticModelDocument; +import org.apache.polaris.service.catalog.semanticmodel.types.SemanticModelIdentifier; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Core create/list/load/update/drop logic for OSI semantic models. Mirrors {@link + * org.apache.polaris.service.catalog.policy.PolicyCatalog}: the OSI document body is stored inside + * the entity {@code properties} map, writes resolve every {@code dataset.source} to a {@code + * TABLE_LIKE} entity in the current catalog, and updates use optimistic concurrency on the entity + * version. Document schema validation is a separate concern (see {@link + * SemanticDocumentValidator}). + */ +public class SemanticModelCatalog { + private static final Logger LOGGER = LoggerFactory.getLogger(SemanticModelCatalog.class); + private static final ObjectMapper MAPPER = new ObjectMapper(); + + private final CallContext callContext; + private final PolarisResolutionManifestCatalogView resolvedEntityView; + private final CatalogEntity catalogEntity; + private final long catalogId; + private final PolarisMetaStoreManager metaStoreManager; + + public SemanticModelCatalog( + PolarisMetaStoreManager metaStoreManager, + CallContext callContext, + PolarisResolutionManifestCatalogView resolvedEntityView) { + this.callContext = callContext; + this.resolvedEntityView = resolvedEntityView; + this.catalogEntity = resolvedEntityView.getResolvedCatalogEntity(); + this.catalogId = catalogEntity.getId(); + this.metaStoreManager = metaStoreManager; + } + + public LoadSemanticModelResponse createSemanticModel( + SemanticModelIdentifier identifier, SemanticModelDocument document) { + Namespace namespace = toNamespace(identifier); + PolarisResolvedPathWrapper resolvedParent = + resolvedEntityView.getResolvedPath(ResolvedPathKey.ofNamespace(namespace)); + if (resolvedParent == null) { + // Illegal state because the namespace should've already been in the static resolution set. + throw new IllegalStateException( + String.format("Failed to fetch resolved parent for semantic model '%s'", identifier)); + } + List<PolarisEntity> catalogPath = resolvedParent.getRawFullPath(); + + PolarisResolvedPathWrapper existing = + resolvedEntityView.getPassthroughResolvedPath( + ResolvedPathKey.ofSemanticModel(namespace, identifier.getName()), + PolarisEntitySubType.NULL_SUBTYPE); + if (existing != null && existing.getRawLeafEntity() != null) { + throw new AlreadyExistsException("Semantic model already exists: %s", identifier.getName()); + } + + // Parse the document and resolve its source tables before persisting. + validateDocumentAndSources(document); + + SemanticModelEntity entity = + new SemanticModelEntity.Builder(namespace, identifier.getName()) + .setCatalogId(catalogId) + .setParentId(resolvedParent.getRawLeafEntity().getId()) + .setSpecVersion(document.getVersion()) + .setContent(document.getSemanticModel()) + .setId( + metaStoreManager.generateNewEntityId(callContext.getPolarisCallContext()).getId()) + .setCreateTimestamp(System.currentTimeMillis()) + .build(); + + EntityResult res = + metaStoreManager.createEntityIfNotExists( + callContext.getPolarisCallContext(), PolarisEntity.toCoreList(catalogPath), entity); + if (!res.isSuccess()) { + switch (res.getReturnStatus()) { + case ENTITY_ALREADY_EXISTS -> + throw new AlreadyExistsException( + "Semantic model already exists: %s", identifier.getName()); + default -> + throw new IllegalStateException( + String.format( + "Unknown error status for identifier %s: %s with extraInfo: %s", + identifier, res.getReturnStatus(), res.getExtraInformation())); + } + } + + SemanticModelEntity result = SemanticModelEntity.of(res.getEntity()); + LOGGER.debug("Created semantic model entity {} with identifier {}", result, identifier); + return toLoadResponse(result); + } + + public ListSemanticModelsResponse listSemanticModels(Namespace namespace, PageToken pageToken) { + PolarisResolvedPathWrapper resolvedEntities = + resolvedEntityView.getResolvedPath(ResolvedPathKey.ofNamespace(namespace)); + if (resolvedEntities == null) { + throw new IllegalStateException( + String.format("Failed to fetch resolved namespace '%s'", namespace)); + } + List<PolarisEntity> catalogPath = resolvedEntities.getRawFullPath(); + + ListEntitiesResult result = + metaStoreManager.listEntities( + callContext.getPolarisCallContext(), + PolarisEntity.toCoreList(catalogPath), + PolarisEntityType.SEMANTIC_MODEL, + PolarisEntitySubType.NULL_SUBTYPE, + pageToken); + if (!result.isSuccess()) { + throw new IllegalStateException("Failed to list semantic models in namespace: " + namespace); + } + + // LinkedHashSet keeps the page order stable in the serialized response. + Set<SemanticModelIdentifier> identifiers = + result.getEntities().stream() + .map( + record -> + SemanticModelIdentifier.builder() + .setNamespace(List.of(namespace.levels())) + .setName(record.getName()) + .build()) + .collect(Collectors.toCollection(LinkedHashSet::new)); + return ListSemanticModelsResponse.builder() + .setIdentifiers(identifiers) + .setNextPageToken(result.getPage().encodedResponseToken()) + .build(); + } + + public LoadSemanticModelResponse loadSemanticModel(SemanticModelIdentifier identifier) { + return toLoadResponse(resolveModelOrThrow(identifier)); + } + + public LoadSemanticModelResponse updateSemanticModel( + SemanticModelIdentifier identifier, SemanticModelDocument document, String expectedVersion) { + PolarisResolvedPathWrapper resolvedPath = resolveModelPathOrThrow(identifier); + SemanticModelEntity current = SemanticModelEntity.of(resolvedPath.getRawLeafEntity()); + + String currentVersion = Integer.toString(current.getEntityVersion()); + if (!currentVersion.equals(expectedVersion)) { + throw new SemanticModelVersionMismatchException( + String.format( + "Semantic model version mismatch. Given version is %s, current version is %s", + expectedVersion, currentVersion)); + } + + validateDocumentAndSources(document); + + SemanticModelEntity newEntity = + new SemanticModelEntity.Builder(current) + .setSpecVersion(document.getVersion()) + .setContent(document.getSemanticModel()) + .build(); + + List<PolarisEntity> catalogPath = resolvedPath.getRawParentPath(); + SemanticModelEntity updated = + Optional.ofNullable( + metaStoreManager + .updateEntityPropertiesIfNotChanged( + callContext.getPolarisCallContext(), + PolarisEntity.toCoreList(catalogPath), + newEntity) + .getEntity()) + .map(SemanticModelEntity::of) + .orElse(null); + if (updated == null) { + // Lost the optimistic-concurrency race with a concurrent writer. + throw new SemanticModelVersionMismatchException( + String.format( + "Semantic model %s was modified concurrently; retry after reloading", + identifier.getName())); + } + + return toLoadResponse(updated); + } + + public void dropSemanticModel(SemanticModelIdentifier identifier) { + PolarisResolvedPathWrapper resolvedPath = resolveModelPathOrThrow(identifier); + List<PolarisEntity> catalogPath = resolvedPath.getRawParentPath(); + PolarisBaseEntity entity = resolvedPath.getRawLeafEntity(); + + var result = + metaStoreManager.dropEntityIfExists( + callContext.getPolarisCallContext(), + PolarisEntity.toCoreList(catalogPath), + entity, + java.util.Map.of(), + false); + if (!result.isSuccess()) { + throw new IllegalStateException( + String.format( + "Failed to drop semantic model %s error status: %s with extraInfo: %s", + identifier, result.getReturnStatus(), result.getExtraInformation())); + } + } + + // ---- helpers ---- + + private PolarisResolvedPathWrapper resolveModelPathOrThrow(SemanticModelIdentifier identifier) { + Namespace namespace = toNamespace(identifier); + PolarisResolvedPathWrapper resolved = + resolvedEntityView.getPassthroughResolvedPath( + ResolvedPathKey.ofSemanticModel(namespace, identifier.getName()), + PolarisEntitySubType.NULL_SUBTYPE); + if (resolved == null || resolved.getRawLeafEntity() == null) { + throw new NoSuchSemanticModelException( + String.format("Semantic model does not exist: %s", identifier.getName())); + } + return resolved; + } + + private SemanticModelEntity resolveModelOrThrow(SemanticModelIdentifier identifier) { + return SemanticModelEntity.of(resolveModelPathOrThrow(identifier).getRawLeafEntity()); + } + + /** + * Parses the OSI document body and resolves every {@code dataset.source} to a {@code TABLE_LIKE} + * entity. Shared by create and update. Schema/size validation is a separate concern handled by a + * {@link SemanticDocumentValidator} implementation (not yet wired in this phase). + */ + private void validateDocumentAndSources(SemanticModelDocument document) { + String body = document.getSemanticModel(); + if (body == null || body.isBlank()) { + return; + } + JsonNode semanticModel; + try { + semanticModel = MAPPER.readTree(body); + } catch (com.fasterxml.jackson.core.JsonProcessingException e) { + throw new BadRequestException( + "Field 'semantic_model' is not valid JSON: %s", e.getOriginalMessage()); + } + resolveSourcesOrThrow(semanticModel); + // TODO call the SemanticDocumentValidator when it's ready + } + + /** + * Resolves every {@code dataset.source} in the OSI document to a {@code TABLE_LIKE} entity in the + * current catalog. Fails with 400 and a JSON-Pointer to the offending dataset if any source does + * not resolve. Column-level checks are deferred (F5). + */ + private void resolveSourcesOrThrow(JsonNode semanticModel) { + if (!semanticModel.isArray()) { + return; + } + for (int m = 0; m < semanticModel.size(); m++) { + JsonNode datasets = semanticModel.get(m).get("datasets"); + if (datasets == null || !datasets.isArray()) { + continue; + } + for (int d = 0; d < datasets.size(); d++) { + JsonNode source = datasets.get(d).get("source"); + if (source != null && source.isTextual()) { + String pointer = String.format("/semantic_model/%d/datasets/%d/source", m, d); + resolveSourceOrThrow(source.asText(), pointer); + } + } + } + } + + private void resolveSourceOrThrow(String source, String pointer) { + TableIdentifier tableIdentifier = parseSource(source, pointer); + PolarisResolvedPathWrapper resolved = + resolvedEntityView.getPassthroughResolvedPath( + ResolvedPathKey.ofTableLike(tableIdentifier), PolarisEntitySubType.ANY_SUBTYPE); + if (resolved == null + || resolved.getRawLeafEntity() == null + || resolved.getRawLeafEntity().getType() != PolarisEntityType.TABLE_LIKE) { + throw new BadRequestException( + "Semantic model source '%s' at %s does not resolve to a table or view in catalog '%s'", + source, pointer, catalogEntity.getName()); + } + } + + private TableIdentifier parseSource(String source, String pointer) { + List<String> parts = Splitter.on('.').splitToList(source); Review Comment: fixed -- This is an automated message from the Apache Git Service. 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