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org.openapitools.codegen.languages.DartClientCodegen Maven / Gradle / Ivy
/*
* 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
*
* 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.openapitools.codegen.languages;
import io.swagger.v3.oas.models.media.ArraySchema;
import io.swagger.v3.oas.models.media.Schema;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.lang3.StringUtils;
import org.openapitools.codegen.*;
import org.openapitools.codegen.utils.ModelUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.util.*;
import static org.openapitools.codegen.utils.StringUtils.camelize;
import static org.openapitools.codegen.utils.StringUtils.underscore;
public class DartClientCodegen extends DefaultCodegen implements CodegenConfig {
private static final Logger LOGGER = LoggerFactory.getLogger(DartClientCodegen.class);
public static final String BROWSER_CLIENT = "browserClient";
public static final String PUB_NAME = "pubName";
public static final String PUB_VERSION = "pubVersion";
public static final String PUB_DESCRIPTION = "pubDescription";
public static final String USE_ENUM_EXTENSION = "useEnumExtension";
public static final String SUPPORT_DART2 = "supportDart2";
protected boolean browserClient = true;
protected String pubName = "openapi";
protected String pubVersion = "1.0.0";
protected String pubDescription = "OpenAPI API client";
protected boolean useEnumExtension = false;
protected String sourceFolder = "";
protected String apiDocPath = "docs" + File.separator;
protected String modelDocPath = "docs" + File.separator;
public DartClientCodegen() {
super();
// clear import mapping (from default generator) as dart does not use it
// at the moment
importMapping.clear();
outputFolder = "generated-code/dart";
modelTemplateFiles.put("model.mustache", ".dart");
apiTemplateFiles.put("api.mustache", ".dart");
embeddedTemplateDir = templateDir = "dart";
apiPackage = "lib.api";
modelPackage = "lib.model";
modelDocTemplateFiles.put("object_doc.mustache", ".md");
apiDocTemplateFiles.put("api_doc.mustache", ".md");
setReservedWordsLowerCase(
Arrays.asList(
"abstract", "as", "assert", "async", "async*", "await",
"break", "case", "catch", "class", "const", "continue",
"default", "deferred", "do", "dynamic", "else", "enum",
"export", "external", "extends", "factory", "false", "final",
"finally", "for", "get", "if", "implements", "import", "in",
"is", "library", "new", "null", "operator", "part", "rethrow",
"return", "set", "static", "super", "switch", "sync*", "this",
"throw", "true", "try", "typedef", "var", "void", "while",
"with", "yield", "yield*")
);
languageSpecificPrimitives = new HashSet(
Arrays.asList(
"String",
"bool",
"int",
"num",
"double")
);
instantiationTypes.put("array", "List");
instantiationTypes.put("map", "Map");
typeMapping = new HashMap();
typeMapping.put("Array", "List");
typeMapping.put("array", "List");
typeMapping.put("List", "List");
typeMapping.put("boolean", "bool");
typeMapping.put("string", "String");
typeMapping.put("char", "String");
typeMapping.put("int", "int");
typeMapping.put("long", "int");
typeMapping.put("short", "int");
typeMapping.put("number", "num");
typeMapping.put("float", "double");
typeMapping.put("double", "double");
typeMapping.put("object", "Object");
typeMapping.put("integer", "int");
typeMapping.put("Date", "DateTime");
typeMapping.put("date", "DateTime");
typeMapping.put("File", "MultipartFile");
typeMapping.put("binary", "MultipartFile");
typeMapping.put("UUID", "String");
typeMapping.put("ByteArray", "String");
cliOptions.add(new CliOption(BROWSER_CLIENT, "Is the client browser based"));
cliOptions.add(new CliOption(PUB_NAME, "Name in generated pubspec"));
cliOptions.add(new CliOption(PUB_VERSION, "Version in generated pubspec"));
cliOptions.add(new CliOption(PUB_DESCRIPTION, "Description in generated pubspec"));
cliOptions.add(new CliOption(USE_ENUM_EXTENSION, "Allow the 'x-enum-values' extension for enums"));
cliOptions.add(new CliOption(CodegenConstants.SOURCE_FOLDER, "source folder for generated code"));
cliOptions.add(CliOption.newBoolean(SUPPORT_DART2, "support dart2").defaultValue(Boolean.TRUE.toString()));
}
@Override
public CodegenType getTag() {
return CodegenType.CLIENT;
}
@Override
public String getName() {
return "dart";
}
@Override
public String getHelp() {
return "Generates a Dart (1.x or 2.x) client library.";
}
@Override
public void processOpts() {
super.processOpts();
if (StringUtils.isEmpty(System.getenv("DART_POST_PROCESS_FILE"))) {
LOGGER.info("Environment variable DART_POST_PROCESS_FILE not defined so the Dart code may not be properly formatted. To define it, try `export DART_POST_PROCESS_FILE=\"/usr/local/bin/dartfmt -w\"` (Linux/Mac)");
LOGGER.info("NOTE: To enable file post-processing, 'enablePostProcessFile' must be set to `true` (--enable-post-process-file for CLI).");
}
if (additionalProperties.containsKey(BROWSER_CLIENT)) {
this.setBrowserClient(convertPropertyToBooleanAndWriteBack(BROWSER_CLIENT));
} else {
//not set, use to be passed to template
additionalProperties.put(BROWSER_CLIENT, browserClient);
}
if (additionalProperties.containsKey(PUB_NAME)) {
this.setPubName((String) additionalProperties.get(PUB_NAME));
} else {
//not set, use to be passed to template
additionalProperties.put(PUB_NAME, pubName);
}
if (additionalProperties.containsKey(PUB_VERSION)) {
this.setPubVersion((String) additionalProperties.get(PUB_VERSION));
} else {
//not set, use to be passed to template
additionalProperties.put(PUB_VERSION, pubVersion);
}
if (additionalProperties.containsKey(PUB_DESCRIPTION)) {
this.setPubDescription((String) additionalProperties.get(PUB_DESCRIPTION));
} else {
//not set, use to be passed to template
additionalProperties.put(PUB_DESCRIPTION, pubDescription);
}
if (additionalProperties.containsKey(USE_ENUM_EXTENSION)) {
this.setUseEnumExtension(convertPropertyToBooleanAndWriteBack(USE_ENUM_EXTENSION));
} else {
// Not set, use to be passed to template.
additionalProperties.put(USE_ENUM_EXTENSION, useEnumExtension);
}
if (additionalProperties.containsKey(CodegenConstants.SOURCE_FOLDER)) {
this.setSourceFolder((String) additionalProperties.get(CodegenConstants.SOURCE_FOLDER));
}
// make api and model doc path available in mustache template
additionalProperties.put("apiDocPath", apiDocPath);
additionalProperties.put("modelDocPath", modelDocPath);
final Object isSupportDart2 = additionalProperties.get(SUPPORT_DART2);
if (Boolean.FALSE.equals(isSupportDart2) || (isSupportDart2 instanceof String && !Boolean.parseBoolean((String) isSupportDart2))) {
// dart 1.x
LOGGER.info("Dart version: 1.x");
supportingFiles.add(new SupportingFile("analysis_options.mustache", "", ".analysis_options"));
} else {
// dart 2.x
LOGGER.info("Dart version: 2.x");
embeddedTemplateDir = templateDir = "dart2";
}
final String libFolder = sourceFolder + File.separator + "lib";
supportingFiles.add(new SupportingFile("pubspec.mustache", "", "pubspec.yaml"));
supportingFiles.add(new SupportingFile("api_client.mustache", libFolder, "api_client.dart"));
supportingFiles.add(new SupportingFile("api_exception.mustache", libFolder, "api_exception.dart"));
supportingFiles.add(new SupportingFile("api_helper.mustache", libFolder, "api_helper.dart"));
supportingFiles.add(new SupportingFile("apilib.mustache", libFolder, "api.dart"));
final String authFolder = sourceFolder + File.separator + "lib" + File.separator + "auth";
supportingFiles.add(new SupportingFile("auth/authentication.mustache", authFolder, "authentication.dart"));
supportingFiles.add(new SupportingFile("auth/http_basic_auth.mustache", authFolder, "http_basic_auth.dart"));
supportingFiles.add(new SupportingFile("auth/api_key_auth.mustache", authFolder, "api_key_auth.dart"));
supportingFiles.add(new SupportingFile("auth/oauth.mustache", authFolder, "oauth.dart"));
supportingFiles.add(new SupportingFile("git_push.sh.mustache", "", "git_push.sh"));
supportingFiles.add(new SupportingFile("gitignore.mustache", "", ".gitignore"));
supportingFiles.add(new SupportingFile("README.mustache", "", "README.md"));
}
@Override
public String escapeReservedWord(String name) {
return name + "_";
}
@Override
public String apiFileFolder() {
return outputFolder + File.separator + sourceFolder + File.separator + apiPackage().replace('.', File.separatorChar);
}
@Override
public String modelFileFolder() {
return outputFolder + File.separator + sourceFolder + File.separator + modelPackage().replace('.', File.separatorChar);
}
@Override
public String apiDocFileFolder() {
return outputFolder + File.separator + apiDocPath.replace('/', File.separatorChar);
}
@Override
public String modelDocFileFolder() {
return outputFolder + File.separator + modelDocPath.replace('/', File.separatorChar);
}
@Override
public String toVarName(String name) {
// replace - with _ e.g. created-at => created_at
name = name.replaceAll("-", "_");
// if it's all uppper case, do nothing
if (name.matches("^[A-Z_]*$")) {
return name;
}
// camelize (lower first character) the variable name
// pet_id => petId
name = camelize(name, true);
if (name.matches("^\\d.*")) {
name = "n" + name;
}
if (isReservedWord(name)) {
name = escapeReservedWord(name);
}
return name;
}
@Override
public String toParamName(String name) {
// should be the same as variable name
return toVarName(name);
}
@Override
public String toModelName(String name) {
// model name cannot use reserved keyword, e.g. return
if (isReservedWord(name)) {
LOGGER.warn(name + " (reserved word) cannot be used as model filename. Renamed to " + camelize("model_" + name));
name = "model_" + name; // e.g. return => ModelReturn (after camelize)
}
// camelize the model name
// phone_number => PhoneNumber
return camelize(name);
}
@Override
public String toModelFilename(String name) {
return underscore(toModelName(name));
}
@Override
public String toApiFilename(String name) {
return underscore(toApiName(name));
}
@Override
public String toDefaultValue(Schema schema) {
if (ModelUtils.isMapSchema(schema)) {
return "{}";
} else if (ModelUtils.isArraySchema(schema)) {
return "[]";
}
if (schema.getDefault() != null) {
if (ModelUtils.isStringSchema(schema)) {
return "\"" + schema.getDefault().toString().replaceAll("\"", "\\\"") + "\"";
}
return schema.getDefault().toString();
} else {
return "null";
}
}
@Override
public String getTypeDeclaration(Schema p) {
if (ModelUtils.isArraySchema(p)) {
ArraySchema ap = (ArraySchema) p;
Schema inner = ap.getItems();
return getSchemaType(p) + "<" + getTypeDeclaration(inner) + ">";
} else if (ModelUtils.isMapSchema(p)) {
Schema inner = ModelUtils.getAdditionalProperties(p);
return getSchemaType(p) + "";
}
return super.getTypeDeclaration(p);
}
@Override
public String getSchemaType(Schema p) {
String openAPIType = super.getSchemaType(p);
String type = null;
if (typeMapping.containsKey(openAPIType)) {
type = typeMapping.get(openAPIType);
if (languageSpecificPrimitives.contains(type)) {
return type;
}
} else {
type = openAPIType;
}
return toModelName(type);
}
@Override
public Map postProcessModels(Map objs) {
return postProcessModelsEnum(objs);
}
@Override
public Map postProcessModelsEnum(Map objs) {
List models = (List) objs.get("models");
for (Object _mo : models) {
Map mo = (Map) _mo;
CodegenModel cm = (CodegenModel) mo.get("model");
boolean succes = buildEnumFromVendorExtension(cm) ||
buildEnumFromValues(cm);
for (CodegenProperty var : cm.vars) {
updateCodegenPropertyEnum(var);
}
}
return objs;
}
/**
* Builds the set of enum members from their declared value.
*
* @return {@code true} if the enum was built
*/
private boolean buildEnumFromValues(CodegenModel cm) {
if (!cm.isEnum || cm.allowableValues == null) {
return false;
}
Map allowableValues = cm.allowableValues;
List values = (List) allowableValues.get("values");
List> enumVars =
new ArrayList>();
String commonPrefix = findCommonPrefixOfVars(values);
int truncateIdx = commonPrefix.length();
for (Object value : values) {
Map enumVar = new HashMap();
String enumName;
if (truncateIdx == 0) {
enumName = value.toString();
} else {
enumName = value.toString().substring(truncateIdx);
if ("".equals(enumName)) {
enumName = value.toString();
}
}
enumVar.put("name", toEnumVarName(enumName, cm.dataType));
enumVar.put("value", toEnumValue(value.toString(), cm.dataType));
enumVars.add(enumVar);
}
cm.allowableValues.put("enumVars", enumVars);
return true;
}
/**
* Builds the set of enum members from a vendor extension.
*
* @return {@code true} if the enum was built
*/
private boolean buildEnumFromVendorExtension(CodegenModel cm) {
if (!cm.isEnum || cm.allowableValues == null ||
!useEnumExtension ||
!cm.vendorExtensions.containsKey("x-enum-values")) {
return false;
}
Object extension = cm.vendorExtensions.get("x-enum-values");
List> values =
(List>) extension;
List> enumVars =
new ArrayList>();
for (Map value : values) {
Map enumVar = new HashMap();
String name = camelize((String) value.get("identifier"), true);
if (isReservedWord(name)) {
name = escapeReservedWord(name);
}
enumVar.put("name", name);
enumVar.put("value", toEnumValue(
value.get("numericValue").toString(), cm.dataType));
if (value.containsKey("description")) {
enumVar.put("description", value.get("description").toString());
}
enumVars.add(enumVar);
}
cm.allowableValues.put("enumVars", enumVars);
return true;
}
@Override
public String toEnumVarName(String value, String datatype) {
if (value.length() == 0) {
return "empty";
}
String var = value.replaceAll("\\W+", "_");
if ("number".equalsIgnoreCase(datatype) ||
"int".equalsIgnoreCase(datatype)) {
var = "Number" + var;
}
return escapeReservedWord(camelize(var, true));
}
@Override
public String toEnumValue(String value, String datatype) {
if ("number".equalsIgnoreCase(datatype) ||
"int".equalsIgnoreCase(datatype)) {
return value;
} else {
return "\"" + escapeText(value) + "\"";
}
}
@Override
public String toOperationId(String operationId) {
// method name cannot use reserved keyword, e.g. return
if (isReservedWord(operationId)) {
String newOperationId = camelize("call_" + operationId, true);
LOGGER.warn(operationId + " (reserved word) cannot be used as method name. Renamed to " + newOperationId);
return newOperationId;
}
return camelize(operationId, true);
}
public void setBrowserClient(boolean browserClient) {
this.browserClient = browserClient;
}
public void setPubName(String pubName) {
this.pubName = pubName;
}
public void setPubVersion(String pubVersion) {
this.pubVersion = pubVersion;
}
public void setPubDescription(String pubDescription) {
this.pubDescription = pubDescription;
}
public void setUseEnumExtension(boolean useEnumExtension) {
this.useEnumExtension = useEnumExtension;
}
public void setSourceFolder(String sourceFolder) {
this.sourceFolder = sourceFolder;
}
@Override
public String escapeQuotationMark(String input) {
// remove " to avoid code injection
return input.replace("\"", "");
}
@Override
public String escapeUnsafeCharacters(String input) {
return input.replace("*/", "*_/").replace("/*", "/_*");
}
@Override
public void postProcessFile(File file, String fileType) {
if (file == null) {
return;
}
String dartPostProcessFile = System.getenv("DART_POST_PROCESS_FILE");
if (StringUtils.isEmpty(dartPostProcessFile)) {
return; // skip if DART_POST_PROCESS_FILE env variable is not defined
}
// only procees the following type (or we can simply rely on the file extension to check if it's a Dart file)
Set supportedFileType = new HashSet(
Arrays.asList(
"supporting-mustache",
"model-test",
"model",
"api-test",
"api"));
if (!supportedFileType.contains(fileType)) {
return;
}
// only process files with dart extension
if ("dart".equals(FilenameUtils.getExtension(file.toString()))) {
// currently only support "dartfmt -w yourcode.dart"
String command = dartPostProcessFile + " " + file.toString();
try {
Process p = Runtime.getRuntime().exec(command);
int exitValue = p.waitFor();
if (exitValue != 0) {
LOGGER.error("Error running the command ({}). Exit code: {}", command, exitValue);
} else {
LOGGER.info("Successfully executed: " + command);
}
} catch (Exception e) {
LOGGER.error("Error running the command ({}). Exception: {}", command, e.getMessage());
}
}
}
}
