/
DefaultGenerator.java
1537 lines (1350 loc) · 74.8 KB
/
DefaultGenerator.java
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/*
* Copyright 2018 OpenAPI-Generator Contributors (https://openapi-generator.tech)
* Copyright 2018 SmartBear Software
*
* Licensed 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
*
* https://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.openapitools.codegen;
import io.swagger.v3.core.util.Json;
import io.swagger.v3.oas.models.OpenAPI;
import io.swagger.v3.oas.models.Operation;
import io.swagger.v3.oas.models.PathItem;
import io.swagger.v3.oas.models.Paths;
import io.swagger.v3.oas.models.info.Contact;
import io.swagger.v3.oas.models.info.Info;
import io.swagger.v3.oas.models.info.License;
import io.swagger.v3.oas.models.media.Schema;
import io.swagger.v3.oas.models.parameters.Parameter;
import io.swagger.v3.oas.models.security.*;
import io.swagger.v3.oas.models.tags.Tag;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.comparator.PathFileComparator;
import org.apache.commons.lang3.ObjectUtils;
import org.apache.commons.lang3.StringUtils;
import org.openapitools.codegen.api.TemplateDefinition;
import org.openapitools.codegen.api.TemplatePathLocator;
import org.openapitools.codegen.api.TemplateProcessor;
import org.openapitools.codegen.config.GlobalSettings;
import org.openapitools.codegen.api.TemplatingEngineAdapter;
import org.openapitools.codegen.api.TemplateFileType;
import org.openapitools.codegen.ignore.CodegenIgnoreProcessor;
import org.openapitools.codegen.languages.PythonPriorClientCodegen;
import org.openapitools.codegen.languages.PythonClientCodegen;
import org.openapitools.codegen.meta.GeneratorMetadata;
import org.openapitools.codegen.meta.Stability;
import org.openapitools.codegen.model.ApiInfoMap;
import org.openapitools.codegen.model.ModelMap;
import org.openapitools.codegen.model.ModelsMap;
import org.openapitools.codegen.model.OperationMap;
import org.openapitools.codegen.model.OperationsMap;
import org.openapitools.codegen.serializer.SerializerUtils;
import org.openapitools.codegen.templating.CommonTemplateContentLocator;
import org.openapitools.codegen.templating.GeneratorTemplateContentLocator;
import org.openapitools.codegen.templating.MustacheEngineAdapter;
import org.openapitools.codegen.templating.TemplateManagerOptions;
import org.openapitools.codegen.utils.ImplementationVersion;
import org.openapitools.codegen.utils.ModelUtils;
import org.openapitools.codegen.utils.ProcessUtils;
import org.openapitools.codegen.utils.URLPathUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.time.ZonedDateTime;
import java.util.*;
import java.util.concurrent.ConcurrentSkipListSet;
import java.util.function.Function;
import java.util.stream.Collectors;
import static org.apache.commons.lang3.StringUtils.removeStart;
import static org.openapitools.codegen.utils.OnceLogger.once;
@SuppressWarnings("rawtypes")
public class DefaultGenerator implements Generator {
private static final String METADATA_DIR = ".openapi-generator";
protected final Logger LOGGER = LoggerFactory.getLogger(DefaultGenerator.class);
private final boolean dryRun;
protected CodegenConfig config;
protected ClientOptInput opts;
protected OpenAPI openAPI;
protected CodegenIgnoreProcessor ignoreProcessor;
private Boolean generateApis = null;
private Boolean generateModels = null;
private Boolean generateSupportingFiles = null;
private Boolean generateApiTests = null;
private Boolean generateApiDocumentation = null;
private Boolean generateModelTests = null;
private Boolean generateModelDocumentation = null;
private Boolean generateMetadata = true;
private String basePath;
private String basePathWithoutHost;
private String contextPath;
private Map<String, String> generatorPropertyDefaults = new HashMap<>();
protected TemplateProcessor templateProcessor = null;
private List<TemplateDefinition> userDefinedTemplates = new ArrayList<>();
public DefaultGenerator() {
this(false);
}
public DefaultGenerator(Boolean dryRun) {
this.dryRun = Boolean.TRUE.equals(dryRun);
LOGGER.info("Generating with dryRun={}", this.dryRun);
}
@SuppressWarnings("deprecation")
@Override
public Generator opts(ClientOptInput opts) {
this.opts = opts;
this.openAPI = opts.getOpenAPI();
this.config = opts.getConfig();
List<TemplateDefinition> userFiles = opts.getUserDefinedTemplates();
if (userFiles != null) {
this.userDefinedTemplates = Collections.unmodifiableList(userFiles);
}
TemplateManagerOptions templateManagerOptions = new TemplateManagerOptions(this.config.isEnableMinimalUpdate(), this.config.isSkipOverwrite());
if (this.dryRun) {
this.templateProcessor = new DryRunTemplateManager(templateManagerOptions);
} else {
TemplatingEngineAdapter templatingEngine = this.config.getTemplatingEngine();
if (templatingEngine instanceof MustacheEngineAdapter) {
MustacheEngineAdapter mustacheEngineAdapter = (MustacheEngineAdapter) templatingEngine;
mustacheEngineAdapter.setCompiler(this.config.processCompiler(mustacheEngineAdapter.getCompiler()));
}
TemplatePathLocator commonTemplateLocator = new CommonTemplateContentLocator();
TemplatePathLocator generatorTemplateLocator = new GeneratorTemplateContentLocator(this.config);
this.templateProcessor = new TemplateManager(
templateManagerOptions,
templatingEngine,
new TemplatePathLocator[]{generatorTemplateLocator, commonTemplateLocator}
);
}
String ignoreFileLocation = this.config.getIgnoreFilePathOverride();
if (ignoreFileLocation != null) {
final File ignoreFile = new File(ignoreFileLocation);
if (ignoreFile.exists() && ignoreFile.canRead()) {
this.ignoreProcessor = new CodegenIgnoreProcessor(ignoreFile);
} else {
LOGGER.warn("Ignore file specified at {} is not valid. This will fall back to an existing ignore file if present in the output directory.", ignoreFileLocation);
}
}
if (this.ignoreProcessor == null) {
this.ignoreProcessor = new CodegenIgnoreProcessor(this.config.getOutputDir());
}
return this;
}
/**
* Retrieves an instance to the configured template processor, available after user-defined options are
* applied via {@link DefaultGenerator#opts(ClientOptInput)}.
*
* @return A configured {@link TemplateProcessor}, or null.
*/
public TemplateProcessor getTemplateProcessor() {
return templateProcessor;
}
/**
* Programmatically disable the output of .openapi-generator/VERSION, .openapi-generator-ignore,
* or other metadata files used by OpenAPI Generator.
*
* @param generateMetadata true: enable outputs, false: disable outputs
*/
@SuppressWarnings("WeakerAccess")
public void setGenerateMetadata(Boolean generateMetadata) {
this.generateMetadata = generateMetadata;
}
/**
* Set generator properties otherwise pulled from system properties.
* Useful for running tests in parallel without relying on System.properties.
*
* @param key The system property key
* @param value The system property value
*/
@SuppressWarnings("WeakerAccess")
public void setGeneratorPropertyDefault(final String key, final String value) {
this.generatorPropertyDefaults.put(key, value);
}
private Boolean getGeneratorPropertyDefaultSwitch(final String key, final Boolean defaultValue) {
String result = null;
if (this.generatorPropertyDefaults.containsKey(key)) {
result = this.generatorPropertyDefaults.get(key);
}
if (result != null) {
return Boolean.valueOf(result);
}
return defaultValue;
}
void configureGeneratorProperties() {
// allows generating only models by specifying a CSV of models to generate, or empty for all
// NOTE: Boolean.TRUE is required below rather than `true` because of JVM boxing constraints and type inference.
generateApis = GlobalSettings.getProperty(CodegenConstants.APIS) != null ? Boolean.TRUE : getGeneratorPropertyDefaultSwitch(CodegenConstants.APIS, null);
generateModels = GlobalSettings.getProperty(CodegenConstants.MODELS) != null ? Boolean.TRUE : getGeneratorPropertyDefaultSwitch(CodegenConstants.MODELS, null);
generateSupportingFiles = GlobalSettings.getProperty(CodegenConstants.SUPPORTING_FILES) != null ? Boolean.TRUE : getGeneratorPropertyDefaultSwitch(CodegenConstants.SUPPORTING_FILES, null);
if (generateApis == null && generateModels == null && generateSupportingFiles == null) {
// no specifics are set, generate everything
generateApis = generateModels = generateSupportingFiles = true;
} else {
if (generateApis == null) {
generateApis = false;
}
if (generateModels == null) {
generateModels = false;
}
if (generateSupportingFiles == null) {
generateSupportingFiles = false;
}
}
// model/api tests and documentation options rely on parent generate options (api or model) and no other options.
// They default to true in all scenarios and can only be marked false explicitly
generateModelTests = GlobalSettings.getProperty(CodegenConstants.MODEL_TESTS) != null ? Boolean.valueOf(GlobalSettings.getProperty(CodegenConstants.MODEL_TESTS)) : getGeneratorPropertyDefaultSwitch(CodegenConstants.MODEL_TESTS, true);
generateModelDocumentation = GlobalSettings.getProperty(CodegenConstants.MODEL_DOCS) != null ? Boolean.valueOf(GlobalSettings.getProperty(CodegenConstants.MODEL_DOCS)) : getGeneratorPropertyDefaultSwitch(CodegenConstants.MODEL_DOCS, true);
generateApiTests = GlobalSettings.getProperty(CodegenConstants.API_TESTS) != null ? Boolean.valueOf(GlobalSettings.getProperty(CodegenConstants.API_TESTS)) : getGeneratorPropertyDefaultSwitch(CodegenConstants.API_TESTS, true);
generateApiDocumentation = GlobalSettings.getProperty(CodegenConstants.API_DOCS) != null ? Boolean.valueOf(GlobalSettings.getProperty(CodegenConstants.API_DOCS)) : getGeneratorPropertyDefaultSwitch(CodegenConstants.API_DOCS, true);
// Additional properties added for tests to exclude references in project related files
config.additionalProperties().put(CodegenConstants.GENERATE_API_TESTS, generateApiTests);
config.additionalProperties().put(CodegenConstants.GENERATE_MODEL_TESTS, generateModelTests);
config.additionalProperties().put(CodegenConstants.GENERATE_API_DOCS, generateApiDocumentation);
config.additionalProperties().put(CodegenConstants.GENERATE_MODEL_DOCS, generateModelDocumentation);
config.additionalProperties().put(CodegenConstants.GENERATE_APIS, generateApis);
config.additionalProperties().put(CodegenConstants.GENERATE_MODELS, generateModels);
if (!generateApiTests && !generateModelTests) {
config.additionalProperties().put(CodegenConstants.EXCLUDE_TESTS, true);
}
if (GlobalSettings.getProperty("debugOpenAPI") != null) {
System.out.println(SerializerUtils.toJsonString(openAPI));
} else if (GlobalSettings.getProperty("debugSwagger") != null) {
// This exists for backward compatibility
// We fall to this block only if debugOpenAPI is null. No need to dump this twice.
LOGGER.info("Please use system property 'debugOpenAPI' instead of 'debugSwagger'.");
System.out.println(SerializerUtils.toJsonString(openAPI));
}
config.processOpts();
// normalize the spec
if (config.getUseOpenAPINormalizer()) {
OpenAPINormalizer openapiNormalizer = new OpenAPINormalizer(openAPI, config.openapiNormalizer());
openapiNormalizer.normalize();
}
// resolve inline models
if (config.getUseInlineModelResolver()) {
InlineModelResolver inlineModelResolver = new InlineModelResolver();
inlineModelResolver.setInlineSchemaNameMapping(config.inlineSchemaNameMapping());
inlineModelResolver.setInlineSchemaNameDefaults(config.inlineSchemaNameDefault());
inlineModelResolver.flatten(openAPI);
}
config.preprocessOpenAPI(openAPI);
// set OpenAPI to make these available to all methods
config.setOpenAPI(openAPI);
config.additionalProperties().put("generatorVersion", ImplementationVersion.read());
config.additionalProperties().put("generatedDate", ZonedDateTime.now().toString());
config.additionalProperties().put("generatedYear", String.valueOf(ZonedDateTime.now().getYear()));
config.additionalProperties().put("generatorClass", config.getClass().getName());
config.additionalProperties().put("inputSpec", config.getInputSpec());
if (openAPI.getExtensions() != null) {
config.vendorExtensions().putAll(openAPI.getExtensions());
}
// TODO: Allow user to define _which_ servers object in the array to target.
// Configures contextPath/basePath according to api document's servers
URL url = URLPathUtils.getServerURL(openAPI, config.serverVariableOverrides());
contextPath = removeTrailingSlash(config.escapeText(url.getPath())); // for backward compatibility
basePathWithoutHost = contextPath;
if (URLPathUtils.isRelativeUrl(openAPI.getServers())) {
basePath = removeTrailingSlash(basePathWithoutHost);
} else {
basePath = removeTrailingSlash(config.escapeText(URLPathUtils.getHost(openAPI, config.serverVariableOverrides())));
}
}
private void configureOpenAPIInfo() {
Info info = this.openAPI.getInfo();
if (info == null) {
return;
}
if (info.getTitle() != null) {
config.additionalProperties().put("appName", config.escapeText(info.getTitle()));
}
if (info.getVersion() != null) {
config.additionalProperties().put("appVersion", config.escapeText(info.getVersion()));
} else {
LOGGER.error("Missing required field info version. Default appVersion set to 1.0.0");
config.additionalProperties().put("appVersion", "1.0.0");
}
if (StringUtils.isEmpty(info.getDescription())) {
// set a default description if none if provided
config.additionalProperties().put("appDescription",
"No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)");
config.additionalProperties().put("appDescriptionWithNewLines", config.additionalProperties().get("appDescription"));
config.additionalProperties().put("unescapedAppDescription", "No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)");
} else {
config.additionalProperties().put("appDescription", config.escapeText(info.getDescription()));
config.additionalProperties().put("appDescriptionWithNewLines", config.escapeTextWhileAllowingNewLines(info.getDescription()));
config.additionalProperties().put("unescapedAppDescription", info.getDescription());
}
if (info.getContact() != null) {
Contact contact = info.getContact();
if (contact.getEmail() != null) {
config.additionalProperties().put("infoEmail", config.escapeText(contact.getEmail()));
}
if (contact.getName() != null) {
config.additionalProperties().put("infoName", config.escapeText(contact.getName()));
}
if (contact.getUrl() != null) {
config.additionalProperties().put("infoUrl", config.escapeText(contact.getUrl()));
}
}
if (info.getLicense() != null) {
License license = info.getLicense();
if (license.getName() != null) {
config.additionalProperties().put("licenseInfo", config.escapeText(license.getName()));
}
if (license.getUrl() != null) {
config.additionalProperties().put("licenseUrl", config.escapeText(license.getUrl()));
}
}
if (info.getVersion() != null) {
config.additionalProperties().put("version", config.escapeText(info.getVersion()));
} else {
LOGGER.error("Missing required field info version. Default version set to 1.0.0");
config.additionalProperties().put("version", "1.0.0");
}
if (info.getTermsOfService() != null) {
config.additionalProperties().put("termsOfService", config.escapeText(info.getTermsOfService()));
}
}
private void generateModelTests(List<File> files, Map<String, Object> models, String modelName) throws IOException {
// to generate model test files
for (Map.Entry<String, String> configModelTestTemplateFilesEntry : config.modelTestTemplateFiles().entrySet()) {
String templateName = configModelTestTemplateFilesEntry.getKey();
String suffix = configModelTestTemplateFilesEntry.getValue();
String filename = config.modelTestFileFolder() + File.separator + config.toModelTestFilename(modelName) + suffix;
if (generateModelTests) {
// do not overwrite test file that already exists (regardless of config's skipOverwrite setting)
File modelTestFile = new File(filename);
if (modelTestFile.exists()) {
this.templateProcessor.skip(modelTestFile.toPath(), "Test files never overwrite an existing file of the same name.");
} else {
File written = processTemplateToFile(models, templateName, filename, generateModelTests, CodegenConstants.MODEL_TESTS, config.modelTestFileFolder());
if (written != null) {
files.add(written);
if (config.isEnablePostProcessFile() && !dryRun) {
config.postProcessFile(written, "model-test");
}
}
}
} else if (dryRun) {
Path skippedPath = java.nio.file.Paths.get(filename);
this.templateProcessor.skip(skippedPath, "Skipped by modelTests option supplied by user.");
}
}
}
private void generateModelDocumentation(List<File> files, Map<String, Object> models, String modelName) throws IOException {
for (String templateName : config.modelDocTemplateFiles().keySet()) {
String docExtension = config.getDocExtension();
String suffix = docExtension != null ? docExtension : config.modelDocTemplateFiles().get(templateName);
String filename = config.modelDocFileFolder() + File.separator + config.toModelDocFilename(modelName) + suffix;
File written = processTemplateToFile(models, templateName, filename, generateModelDocumentation, CodegenConstants.MODEL_DOCS);
if (written != null) {
files.add(written);
if (config.isEnablePostProcessFile() && !dryRun) {
config.postProcessFile(written, "model-doc");
}
}
}
}
private void generateModel(List<File> files, Map<String, Object> models, String modelName) throws IOException {
for (String templateName : config.modelTemplateFiles().keySet()) {
String filename = config.modelFilename(templateName, modelName);
File written = processTemplateToFile(models, templateName, filename, generateModels, CodegenConstants.MODELS);
if (written != null) {
files.add(written);
if (config.isEnablePostProcessFile() && !dryRun) {
config.postProcessFile(written, "model");
}
}
}
}
void generateModels(List<File> files, List<ModelMap> allModels, List<String> unusedModels) {
if (!generateModels) {
// TODO: Process these anyway and add to dryRun info
LOGGER.info("Skipping generation of models.");
return;
}
final Map<String, Schema> schemas = ModelUtils.getSchemas(this.openAPI);
if (schemas == null) {
LOGGER.warn("Skipping generation of models because specification document has no schemas.");
return;
}
String modelNames = GlobalSettings.getProperty("models");
Set<String> modelsToGenerate = null;
if (modelNames != null && !modelNames.isEmpty()) {
modelsToGenerate = new HashSet<>(Arrays.asList(modelNames.split(",")));
}
Set<String> modelKeys = schemas.keySet();
if (modelsToGenerate != null && !modelsToGenerate.isEmpty()) {
Set<String> updatedKeys = new HashSet<>();
for (String m : modelKeys) {
if (modelsToGenerate.contains(m)) {
updatedKeys.add(m);
}
}
modelKeys = updatedKeys;
}
// store all processed models
Map<String, ModelsMap> allProcessedModels = new TreeMap<>((o1, o2) -> ObjectUtils.compare(config.toModelName(o1), config.toModelName(o2)));
Boolean skipFormModel = GlobalSettings.getProperty(CodegenConstants.SKIP_FORM_MODEL) != null ?
Boolean.valueOf(GlobalSettings.getProperty(CodegenConstants.SKIP_FORM_MODEL)) :
getGeneratorPropertyDefaultSwitch(CodegenConstants.SKIP_FORM_MODEL, true);
// process models only
for (String name : modelKeys) {
try {
//don't generate models that have an import mapping
if (config.schemaMapping().containsKey(name)) {
LOGGER.debug("Model {} not imported due to import mapping", name);
for (String templateName : config.modelTemplateFiles().keySet()) {
// HACK: Because this returns early, could lead to some invalid model reporting.
String filename = config.modelFilename(templateName, name);
Path path = java.nio.file.Paths.get(filename);
this.templateProcessor.skip(path,"Skipped prior to model processing due to schema mapping." );
}
continue;
}
// don't generate models that are not used as object (e.g. form parameters)
if (unusedModels.contains(name)) {
if (Boolean.FALSE.equals(skipFormModel)) {
// if skipFormModel sets to true, still generate the model and log the result
LOGGER.info("Model {} (marked as unused due to form parameters) is generated due to the global property `skipFormModel` set to false", name);
} else {
LOGGER.info("Model {} not generated since it's marked as unused (due to form parameters) and `skipFormModel` (global property) set to true (default)", name);
// TODO: Should this be added to dryRun? If not, this seems like a weird place to return early from processing.
continue;
}
}
Schema schema = schemas.get(name);
if (ModelUtils.isFreeFormObject(this.openAPI, schema)) { // check to see if it's a free-form object
// there are 3 free form use cases
// 1. free form with no validation that is not allOf included in any composed schemas
// 2. free form with validation
// 3. free form that is allOf included in any composed schemas
// this use case arises when using interface schemas
// generators may choose to make models for use case 2 + 3
Schema refSchema = new Schema();
refSchema.set$ref("#/components/schemas/" + name);
Schema unaliasedSchema = config.unaliasSchema(refSchema);
if (unaliasedSchema.get$ref() == null) {
LOGGER.info("Model {} not generated since it's a free-form object", name);
continue;
}
} else if (ModelUtils.isMapSchema(schema)) { // check to see if it's a "map" model
// A composed schema (allOf, oneOf, anyOf) is considered a Map schema if the additionalproperties attribute is set
// for that composed schema. However, in the case of a composed schema, the properties are defined or referenced
// in the inner schemas, and the outer schema does not have properties.
if (!ModelUtils.isGenerateAliasAsModel(schema) && !ModelUtils.isComposedSchema(schema) && (schema.getProperties() == null || schema.getProperties().isEmpty())) {
// schema without property, i.e. alias to map
LOGGER.info("Model {} not generated since it's an alias to map (without property) and `generateAliasAsModel` is set to false (default)", name);
continue;
}
} else if (ModelUtils.isArraySchema(schema)) { // check to see if it's an "array" model
if (!ModelUtils.isGenerateAliasAsModel(schema) && (schema.getProperties() == null || schema.getProperties().isEmpty())) {
// schema without property, i.e. alias to array
LOGGER.info("Model {} not generated since it's an alias to array (without property) and `generateAliasAsModel` is set to false (default)", name);
continue;
}
}
Map<String, Schema> schemaMap = new HashMap<>();
schemaMap.put(name, schema);
ModelsMap models = processModels(config, schemaMap);
models.put("classname", config.toModelName(name));
models.putAll(config.additionalProperties());
allProcessedModels.put(name, models);
} catch (Exception e) {
throw new RuntimeException("Could not process model '" + name + "'" + ".Please make sure that your schema is correct!", e);
}
}
// loop through all models to update children models, isSelfReference, isCircularReference, etc
allProcessedModels = config.updateAllModels(allProcessedModels);
// post process all processed models
allProcessedModels = config.postProcessAllModels(allProcessedModels);
// generate files based on processed models
for (String modelName : allProcessedModels.keySet()) {
ModelsMap models = allProcessedModels.get(modelName);
models.put("modelPackage", config.modelPackage());
try {
//don't generate models that have a schema mapping
if (config.schemaMapping().containsKey(modelName)) {
continue;
}
// TODO revise below as we've already performed unaliasing so that the isAlias check may be removed
List<ModelMap> modelList = models.getModels();
if (modelList != null && !modelList.isEmpty()) {
ModelMap modelTemplate = modelList.get(0);
if (modelTemplate != null && modelTemplate.getModel() != null) {
CodegenModel m = modelTemplate.getModel();
if (m.isAlias && !((config instanceof PythonPriorClientCodegen) || (config instanceof PythonClientCodegen))) {
// alias to number, string, enum, etc, which should not be generated as model
// for PythonClientCodegen, all aliases are generated as models
continue; // Don't create user-defined classes for aliases
}
}
allModels.add(modelTemplate);
}
// to generate model files
generateModel(files, models, modelName);
// to generate model test files
generateModelTests(files, models, modelName);
// to generate model documentation files
generateModelDocumentation(files, models, modelName);
} catch (Exception e) {
throw new RuntimeException("Could not generate model '" + modelName + "'", e);
}
}
if (GlobalSettings.getProperty("debugModels") != null) {
LOGGER.info("############ Model info ############");
Json.prettyPrint(allModels);
}
}
@SuppressWarnings("unchecked")
void generateApis(List<File> files, List<OperationsMap> allOperations, List<ModelMap> allModels) {
if (!generateApis) {
// TODO: Process these anyway and present info via dryRun?
LOGGER.info("Skipping generation of APIs.");
return;
}
Map<String, List<CodegenOperation>> paths = processPaths(this.openAPI.getPaths());
Set<String> apisToGenerate = null;
String apiNames = GlobalSettings.getProperty("apis");
if (apiNames != null && !apiNames.isEmpty()) {
apisToGenerate = new HashSet<>(Arrays.asList(apiNames.split(",")));
}
if (apisToGenerate != null && !apisToGenerate.isEmpty()) {
Map<String, List<CodegenOperation>> updatedPaths = new TreeMap<>();
for (String m : paths.keySet()) {
if (apisToGenerate.contains(m)) {
updatedPaths.put(m, paths.get(m));
}
}
paths = updatedPaths;
}
for (String tag : paths.keySet()) {
try {
List<CodegenOperation> ops = paths.get(tag);
ops.sort((one, another) -> ObjectUtils.compare(one.operationId, another.operationId));
OperationsMap operation = processOperations(config, tag, ops, allModels);
URL url = URLPathUtils.getServerURL(openAPI, config.serverVariableOverrides());
operation.put("basePath", basePath);
operation.put("basePathWithoutHost", removeTrailingSlash(config.encodePath(url.getPath())));
operation.put("contextPath", contextPath);
operation.put("baseName", tag);
operation.put("apiPackage", config.apiPackage());
operation.put("modelPackage", config.modelPackage());
operation.putAll(config.additionalProperties());
operation.put("classname", config.toApiName(tag));
operation.put("classVarName", config.toApiVarName(tag));
operation.put("importPath", config.toApiImport(tag));
operation.put("classFilename", config.toApiFilename(tag));
operation.put("strictSpecBehavior", config.isStrictSpecBehavior());
if (allModels == null || allModels.isEmpty()) {
operation.put("hasModel", false);
} else {
operation.put("hasModel", true);
}
if (!config.vendorExtensions().isEmpty()) {
operation.put("vendorExtensions", config.vendorExtensions());
}
// process top-level x-group-parameters
if (config.vendorExtensions().containsKey("x-group-parameters")) {
boolean isGroupParameters = Boolean.parseBoolean(config.vendorExtensions().get("x-group-parameters").toString());
OperationMap objectMap = operation.getOperations();
List<CodegenOperation> operations = objectMap.getOperation();
for (CodegenOperation op : operations) {
if (isGroupParameters && !op.vendorExtensions.containsKey("x-group-parameters")) {
op.vendorExtensions.put("x-group-parameters", Boolean.TRUE);
}
}
}
// Pass sortParamsByRequiredFlag through to the Mustache template...
boolean sortParamsByRequiredFlag = true;
if (this.config.additionalProperties().containsKey(CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG)) {
sortParamsByRequiredFlag = Boolean.parseBoolean(this.config.additionalProperties().get(CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG).toString());
}
operation.put("sortParamsByRequiredFlag", sortParamsByRequiredFlag);
/* consumes, produces are no longer defined in OAS3.0
processMimeTypes(swagger.getConsumes(), operation, "consumes");
processMimeTypes(swagger.getProduces(), operation, "produces");
*/
allOperations.add(operation);
addAuthenticationSwitches(operation);
for (String templateName : config.apiTemplateFiles().keySet()) {
String filename = config.apiFilename(templateName, tag);
File written = processTemplateToFile(operation, templateName, filename, generateApis, CodegenConstants.APIS);
if (written != null) {
files.add(written);
if (config.isEnablePostProcessFile() && !dryRun) {
config.postProcessFile(written, "api");
}
}
}
// to generate api test files
for (String templateName : config.apiTestTemplateFiles().keySet()) {
String filename = config.apiTestFilename(templateName, tag);
File apiTestFile = new File(filename);
// do not overwrite test file that already exists
if (apiTestFile.exists()) {
this.templateProcessor.skip(apiTestFile.toPath(), "Test files never overwrite an existing file of the same name.");
} else {
File written = processTemplateToFile(operation, templateName, filename, generateApiTests, CodegenConstants.API_TESTS, config.apiTestFileFolder());
if (written != null) {
files.add(written);
if (config.isEnablePostProcessFile() && !dryRun) {
config.postProcessFile(written, "api-test");
}
}
}
}
// to generate api documentation files
for (String templateName : config.apiDocTemplateFiles().keySet()) {
String filename = config.apiDocFilename(templateName, tag);
File written = processTemplateToFile(operation, templateName, filename, generateApiDocumentation, CodegenConstants.API_DOCS);
if (written != null) {
files.add(written);
if (config.isEnablePostProcessFile() && !dryRun) {
config.postProcessFile(written, "api-doc");
}
}
}
} catch (Exception e) {
throw new RuntimeException("Could not generate api file for '" + tag + "'", e);
}
}
if (GlobalSettings.getProperty("debugOperations") != null) {
LOGGER.info("############ Operation info ############");
Json.prettyPrint(allOperations);
}
}
private void generateSupportingFiles(List<File> files, Map<String, Object> bundle) {
if (!generateSupportingFiles) {
// TODO: process these anyway and report via dryRun?
LOGGER.info("Skipping generation of supporting files.");
return;
}
Set<String> supportingFilesToGenerate = null;
String supportingFiles = GlobalSettings.getProperty(CodegenConstants.SUPPORTING_FILES);
if (supportingFiles != null && !supportingFiles.isEmpty()) {
supportingFilesToGenerate = new HashSet<>(Arrays.asList(supportingFiles.split(",")));
}
for (SupportingFile support : config.supportingFiles()) {
try {
String outputFolder = config.outputFolder();
if (StringUtils.isNotEmpty(support.getFolder())) {
outputFolder += File.separator + support.getFolder();
}
File of = new File(outputFolder);
if (!of.isDirectory()) {
if (!dryRun && !of.mkdirs()) {
once(LOGGER).debug("Output directory {} not created. It {}.", outputFolder, of.exists() ? "already exists." : "may not have appropriate permissions.");
}
}
String outputFilename = new File(support.getDestinationFilename()).isAbsolute() // split
? support.getDestinationFilename()
: outputFolder + File.separator + support.getDestinationFilename().replace('/', File.separatorChar);
boolean shouldGenerate = true;
if (supportingFilesToGenerate != null && !supportingFilesToGenerate.isEmpty()) {
shouldGenerate = supportingFilesToGenerate.contains(support.getDestinationFilename());
}
File written = processTemplateToFile(bundle, support.getTemplateFile(), outputFilename, shouldGenerate, CodegenConstants.SUPPORTING_FILES);
if (written != null) {
files.add(written);
if (config.isEnablePostProcessFile() && !dryRun) {
config.postProcessFile(written, "supporting-file");
}
}
} catch (Exception e) {
throw new RuntimeException("Could not generate supporting file '" + support + "'", e);
}
}
// Consider .openapi-generator-ignore a supporting file
// Output .openapi-generator-ignore if it doesn't exist and wasn't explicitly created by a generator
final String openapiGeneratorIgnore = ".openapi-generator-ignore";
String ignoreFileNameTarget = config.outputFolder() + File.separator + openapiGeneratorIgnore;
File ignoreFile = new File(ignoreFileNameTarget);
if (generateMetadata) {
try {
boolean shouldGenerate = !ignoreFile.exists();
if (shouldGenerate && supportingFilesToGenerate != null && !supportingFilesToGenerate.isEmpty()) {
shouldGenerate = supportingFilesToGenerate.contains(openapiGeneratorIgnore);
}
File written = processTemplateToFile(bundle, openapiGeneratorIgnore, ignoreFileNameTarget, shouldGenerate, CodegenConstants.SUPPORTING_FILES);
if (written != null) {
files.add(written);
if (config.isEnablePostProcessFile() && !dryRun) {
config.postProcessFile(written, "openapi-generator-ignore");
}
}
} catch (Exception e) {
throw new RuntimeException("Could not generate supporting file '" + ignoreFileNameTarget + "'", e);
}
} else {
this.templateProcessor.skip(ignoreFile.toPath(), "Skipped by generateMetadata option supplied by user.");
}
generateVersionMetadata(files);
}
Map<String, Object> buildSupportFileBundle(List<OperationsMap> allOperations, List<ModelMap> allModels) {
Map<String, Object> bundle = new HashMap<>(config.additionalProperties());
bundle.put("apiPackage", config.apiPackage());
ApiInfoMap apis = new ApiInfoMap();
apis.setApis(allOperations);
URL url = URLPathUtils.getServerURL(openAPI, config.serverVariableOverrides());
bundle.put("openAPI", openAPI);
bundle.put("basePath", basePath);
bundle.put("basePathWithoutHost", basePathWithoutHost);
bundle.put("scheme", URLPathUtils.getScheme(url, config));
bundle.put("host", url.getHost());
if (url.getPort() != 80 && url.getPort() != 443 && url.getPort() != -1) {
bundle.put("port", url.getPort());
}
bundle.put("contextPath", contextPath);
bundle.put("apiInfo", apis);
bundle.put("models", allModels);
bundle.put("apiFolder", config.apiPackage().replace('.', File.separatorChar));
bundle.put("modelPackage", config.modelPackage());
bundle.put("library", config.getLibrary());
bundle.put("generatorLanguageVersion", config.generatorLanguageVersion());
// todo verify support and operation bundles have access to the common variables
addAuthenticationSwitches(bundle);
List<CodegenServer> servers = config.fromServers(openAPI.getServers());
if (servers != null && !servers.isEmpty()) {
servers.forEach(server -> server.url = removeTrailingSlash(server.url));
bundle.put("servers", servers);
bundle.put("hasServers", true);
}
if (openAPI.getExternalDocs() != null) {
bundle.put("externalDocs", openAPI.getExternalDocs());
}
for (int i = 0; i < allModels.size() - 1; i++) {
CodegenModel m = allModels.get(i).getModel();
m.hasMoreModels = true;
}
config.postProcessSupportingFileData(bundle);
if (GlobalSettings.getProperty("debugSupportingFiles") != null) {
LOGGER.info("############ Supporting file info ############");
Json.prettyPrint(bundle);
}
return bundle;
}
/**
* Add authentication methods to the given map
* This adds a boolean and a collection for each authentication type to the map.
* <p>
* Examples:
* <p>
* boolean hasOAuthMethods
* <p>
* List<CodegenSecurity> oauthMethods
*
* @param bundle the map which the booleans and collections will be added
*/
void addAuthenticationSwitches(Map<String, Object> bundle) {
Map<String, SecurityScheme> securitySchemeMap = openAPI.getComponents() != null ? openAPI.getComponents().getSecuritySchemes() : null;
List<CodegenSecurity> authMethods = config.fromSecurity(securitySchemeMap);
if (authMethods != null && !authMethods.isEmpty()) {
bundle.put("authMethods", authMethods);
bundle.put("hasAuthMethods", true);
if (ProcessUtils.hasOAuthMethods(authMethods)) {
bundle.put("hasOAuthMethods", true);
bundle.put("oauthMethods", ProcessUtils.getOAuthMethods(authMethods));
}
if (ProcessUtils.hasHttpBearerMethods(authMethods)) {
bundle.put("hasHttpBearerMethods", true);
bundle.put("httpBearerMethods", ProcessUtils.getHttpBearerMethods(authMethods));
}
if (ProcessUtils.hasHttpSignatureMethods(authMethods)) {
bundle.put("hasHttpSignatureMethods", true);
bundle.put("httpSignatureMethods", ProcessUtils.getHttpSignatureMethods(authMethods));
}
if (ProcessUtils.hasHttpBasicMethods(authMethods)) {
bundle.put("hasHttpBasicMethods", true);
bundle.put("httpBasicMethods", ProcessUtils.getHttpBasicMethods(authMethods));
}
if (ProcessUtils.hasApiKeyMethods(authMethods)) {
bundle.put("hasApiKeyMethods", true);
bundle.put("apiKeyMethods", ProcessUtils.getApiKeyMethods(authMethods));
}
}
}
@Override
public List<File> generate() {
if (openAPI == null) {
throw new RuntimeException("Issues with the OpenAPI input. Possible causes: invalid/missing spec, malformed JSON/YAML files, etc.");
}
if (config == null) {
throw new RuntimeException("missing config!");
}
if (config.getGeneratorMetadata() == null) {
LOGGER.warn("Generator '{}' is missing generator metadata!", config.getName());
} else {
GeneratorMetadata generatorMetadata = config.getGeneratorMetadata();
if (StringUtils.isNotEmpty(generatorMetadata.getGenerationMessage())) {
LOGGER.info(generatorMetadata.getGenerationMessage());
}
Stability stability = generatorMetadata.getStability();
String stabilityMessage = String.format(Locale.ROOT, "Generator '%s' is considered %s.", config.getName(), stability.value());
if (stability == Stability.DEPRECATED) {
LOGGER.warn(stabilityMessage);
} else {
LOGGER.info(stabilityMessage);
}
}
configureGeneratorProperties();
configureOpenAPIInfo();
config.processOpenAPI(openAPI);
processUserDefinedTemplates();
List<File> files = new ArrayList<>();
// models
List<String> filteredSchemas = ModelUtils.getSchemasUsedOnlyInFormParam(openAPI);
List<ModelMap> allModels = new ArrayList<>();
generateModels(files, allModels, filteredSchemas);
// apis
List<OperationsMap> allOperations = new ArrayList<>();
generateApis(files, allOperations, allModels);
// supporting files
Map<String, Object> bundle = buildSupportFileBundle(allOperations, allModels);
generateSupportingFiles(files, bundle);
if (dryRun) {
boolean verbose = Boolean.parseBoolean(GlobalSettings.getProperty("verbose"));
StringBuilder sb = new StringBuilder();
sb.append(System.lineSeparator()).append(System.lineSeparator());
sb.append("Dry Run Results:");
sb.append(System.lineSeparator()).append(System.lineSeparator());
Map<String, DryRunStatus> dryRunStatusMap = ((DryRunTemplateManager) this.templateProcessor).getDryRunStatusMap();
dryRunStatusMap.entrySet().stream().sorted(Map.Entry.comparingByKey()).forEach(entry -> {
DryRunStatus status = entry.getValue();
try {
status.appendTo(sb);
sb.append(System.lineSeparator());
if (verbose) {
sb.append(" ")
.append(StringUtils.rightPad(status.getState().getDescription(), 20, "."))
.append(" ").append(status.getReason())
.append(System.lineSeparator());
}
} catch (IOException e) {
LOGGER.debug("Unable to document dry run status for {}.", entry.getKey());
}
});
sb.append(System.lineSeparator()).append(System.lineSeparator());
sb.append("States:");
sb.append(System.lineSeparator()).append(System.lineSeparator());
for (DryRunStatus.State state : DryRunStatus.State.values()) {
sb.append(" - ").append(state.getShortDisplay()).append(" ").append(state.getDescription()).append(System.lineSeparator());
}
sb.append(System.lineSeparator());
LOGGER.error(sb.toString());
} else {
// This exists here rather than in the method which generates supporting files to avoid accidentally adding files after this metadata.
if (generateSupportingFiles) {
generateFilesMetadata(files);
}
}
// post-process
config.postProcess();
// reset GlobalSettings, so that the running thread can be reused for another generator-run
GlobalSettings.reset();
return files;
}
private void processUserDefinedTemplates() {
// TODO: initial behavior is "merge" user defined with built-in templates. consider offering user a "replace" option.
if (userDefinedTemplates != null && !userDefinedTemplates.isEmpty()) {
Map<String, SupportingFile> supportingFilesMap = config.supportingFiles().stream()
.collect(Collectors.toMap(TemplateDefinition::getTemplateFile, Function.identity(), (oldValue, newValue) -> oldValue));
// TemplateFileType.SupportingFiles
userDefinedTemplates.stream()
.filter(i -> i.getTemplateType().equals(TemplateFileType.SupportingFiles))
.forEach(userDefinedTemplate -> {
SupportingFile newFile = new SupportingFile(
userDefinedTemplate.getTemplateFile(),
userDefinedTemplate.getFolder(),
userDefinedTemplate.getDestinationFilename()
);
if (supportingFilesMap.containsKey(userDefinedTemplate.getTemplateFile())) {
SupportingFile f = supportingFilesMap.get(userDefinedTemplate.getTemplateFile());
config.supportingFiles().remove(f);
if (!f.isCanOverwrite()) {
newFile.doNotOverwrite();