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132 changes: 132 additions & 0 deletions
132
generators/src/main/java/com/algolia/codegen/utils/ModelPruner.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| package com.algolia.codegen.utils; | ||
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| import java.io.File; | ||
| import java.util.*; | ||
| import org.openapitools.codegen.*; | ||
| import org.openapitools.codegen.model.ModelMap; | ||
| import org.openapitools.codegen.model.OperationsMap; | ||
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| public class ModelPruner { | ||
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| private static Set<String> primitiveModels = new HashSet<>(Arrays.asList("object", "array", "string", "boolean", "integer")); | ||
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| private Map<String, CodegenModel> models; | ||
| private Set<String> visitedModels; | ||
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| private ModelPruner(Map<String, CodegenModel> models) { | ||
| this.visitedModels = new TreeSet<>(String.CASE_INSENSITIVE_ORDER); | ||
| this.models = models; | ||
| } | ||
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| private CodegenModel getModel(String name) { | ||
| name = name.replace("?", ""); | ||
| // openapi generator returns some weird error when looking for primitive type, so we filter them | ||
| // by hand | ||
| if (primitiveModels.contains(name)) { | ||
| return null; | ||
| } | ||
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| return models.get(name); | ||
| } | ||
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| private CodegenModel propertyToModel(CodegenProperty prop) { | ||
| return prop == null ? null : getModel(prop.openApiType); | ||
| } | ||
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| private void exploreProperties(CodegenModel model, List<CodegenProperty> properties) { | ||
| for (CodegenProperty property : properties) { | ||
| CodegenModel propModel = propertyToModel(property); | ||
| if (propModel != null && !visitedModels.contains(propModel.name)) { | ||
| visitedModels.add(property.openApiType); | ||
| visitedModels.add(propModel.name); | ||
| visitModelRecursive(propModel); | ||
| } | ||
| CodegenModel itemsModel = propertyToModel(property.mostInnerItems); | ||
| if (itemsModel != null && !visitedModels.contains(itemsModel.name)) { | ||
| // In csharp the real model name varies if its part of the modelMapping so we have to add | ||
| // both | ||
| visitedModels.add(property.mostInnerItems.openApiType); | ||
| visitedModels.add(itemsModel.name); | ||
| visitModelRecursive(itemsModel); | ||
| } | ||
| } | ||
| } | ||
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| private void visitModelRecursive(CodegenModel model) { | ||
| exploreProperties(model, model.getVars()); | ||
| if (model.getComposedSchemas() != null && model.getComposedSchemas().getOneOf() != null) { | ||
| exploreProperties(model, model.getComposedSchemas().getOneOf()); | ||
| } | ||
| } | ||
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| private static Map<String, CodegenModel> convertToMap(CodegenConfig config, List<ModelMap> models) { | ||
| Map<String, CodegenModel> modelsMap = new TreeMap<>(String.CASE_INSENSITIVE_ORDER); | ||
| for (ModelMap modelMap : models) { | ||
| CodegenModel model = modelMap.getModel(); | ||
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| modelsMap.put(config.toModelName(model.name), model); | ||
| } | ||
| return modelsMap; | ||
| } | ||
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| private void exploreGraph(OperationsMap operations) { | ||
| for (CodegenModel model : models.values()) { | ||
| visitModelRecursive(model); | ||
| } | ||
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| for (CodegenOperation ope : operations.getOperations().getOperation()) { | ||
| if (ope.returnType != null) { | ||
| CodegenModel returnType = getModel(ope.returnBaseType); | ||
| if (returnType != null) { | ||
| visitedModels.add(returnType.name); | ||
| } | ||
| } | ||
| for (CodegenParameter param : ope.allParams) { | ||
| CodegenModel paramType = getModel(param.baseType != null ? param.baseType : param.dataType); | ||
| if (paramType != null) { | ||
| visitedModels.add(paramType.name); | ||
| } | ||
| CodegenModel itemsModel = propertyToModel(param.mostInnerItems); | ||
| if (itemsModel != null) { | ||
| visitedModels.add(itemsModel.name); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| /** remove all the unused models, most likely the sub models of allOf */ | ||
| public static void removeOrphans(CodegenConfig config, OperationsMap operations, List<ModelMap> allModels, boolean keepError) { | ||
| // visit all the models that are accessible from: | ||
| // - the properties of a model (needs recursive search) | ||
| // - the return type of an operation | ||
| // - the parameters of an operation | ||
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| ModelPruner modelPruner = new ModelPruner(convertToMap(config, allModels)); | ||
| Helpers.prettyPrint(modelPruner.models.keySet()); | ||
| modelPruner.exploreGraph(operations); | ||
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| List<String> toRemove = new ArrayList<>(); | ||
| for (String modelName : modelPruner.models.keySet()) { | ||
| if (keepError && modelName.equals("ErrorBase")) { | ||
| continue; | ||
| } | ||
| if (!modelPruner.visitedModels.contains(modelName)) { | ||
| toRemove.add(modelName); | ||
| } | ||
| } | ||
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| String templateName = config.modelTemplateFiles().keySet().iterator().next(); | ||
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| for (String modelName : toRemove) { | ||
| String filename = config.modelFilename(templateName, modelName); | ||
| File file = new File(filename); | ||
| if (file.exists()) { | ||
| file.delete(); | ||
| } | ||
| } | ||
| } | ||
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| public static void removeOrphans(CodegenConfig config, OperationsMap operations, List<ModelMap> allModels) { | ||
| removeOrphans(config, operations, allModels, false); | ||
| } | ||
| } |