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io.swagger.codegen.v3.generators.r.RClientCodegen Maven / Gradle / Ivy
package io.swagger.codegen.v3.generators.r;
import io.swagger.codegen.v3.CliOption;
import io.swagger.codegen.v3.CodegenConstants;
import io.swagger.codegen.v3.CodegenProperty;
import io.swagger.codegen.v3.CodegenType;
import io.swagger.codegen.v3.SupportingFile;
import io.swagger.codegen.v3.generators.DefaultCodegenConfig;
import java.io.File;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.Map;
import io.swagger.models.properties.ArrayProperty;
import io.swagger.v3.oas.models.media.ArraySchema;
import io.swagger.v3.oas.models.media.MapSchema;
import io.swagger.v3.oas.models.media.Schema;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class RClientCodegen extends DefaultCodegenConfig {
static Logger LOGGER = LoggerFactory.getLogger(RClientCodegen.class);
protected String packageName = "swagger";
protected String packageVersion = "1.0.0";
protected String apiDocPath = "docs/";
protected String modelDocPath = "docs/";
public CodegenType getTag() {
return CodegenType.CLIENT;
}
public String getName() {
return "r";
}
public String getHelp() {
return "Generates a R client library (beta).";
}
public RClientCodegen() {
super();
outputFolder = "generated-code/r";
modelTemplateFiles.put("model.mustache", ".r");
apiTemplateFiles.put("api.mustache", ".r");
modelDocTemplateFiles.put("model_doc.mustache", ".md");
apiDocTemplateFiles.put("api_doc.mustache", ".md");
// default HIDE_GENERATION_TIMESTAMP to true
hideGenerationTimestamp = Boolean.TRUE;
setReservedWordsLowerCase(
Arrays.asList(
// reserved words: https://stat.ethz.ch/R-manual/R-devel/library/base/html/Reserved.html
"if", "else", "repeat", "while", "function", "for", "in",
"next", "break", "TRUE", "FALSE", "NULL", "Inf", "NaN",
"NA", "NA_integer_", "NA_real_", "NA_complex_", "NA_character_"
)
);
defaultIncludes = new HashSet(
Arrays.asList(
"map",
"array")
);
languageSpecificPrimitives = new HashSet(
Arrays.asList(
"Integer",
"Numeric",
"Character")
);
instantiationTypes.clear();
typeMapping.clear();
typeMapping.put("integer", "Integer");
typeMapping.put("long", "Integer");
typeMapping.put("number", "Numeric");
typeMapping.put("float", "Numeric");
typeMapping.put("double", "Numeric");
typeMapping.put("boolean", "Character");
typeMapping.put("string", "Character");
typeMapping.put("UUID", "Character");
typeMapping.put("date", "Character");
typeMapping.put("DateTime", "Character");
typeMapping.put("password", "Character");
typeMapping.put("file", "TODO_FILE_MAPPING");
// map binary to string as a workaround
// the correct solution is to use []byte
typeMapping.put("binary", "Character");
typeMapping.put("ByteArray", "Character");
typeMapping.put("object", "TODO_OBJECT_MAPPING");
cliOptions.clear();
cliOptions.add(new CliOption(CodegenConstants.PACKAGE_NAME, "R package name (convention: lowercase).")
.defaultValue("swagger"));
cliOptions.add(new CliOption(CodegenConstants.PACKAGE_VERSION, "R package version.")
.defaultValue("1.0.0"));
cliOptions.add(new CliOption(CodegenConstants.HIDE_GENERATION_TIMESTAMP, CodegenConstants.HIDE_GENERATION_TIMESTAMP_DESC)
.defaultValue(Boolean.TRUE.toString()));
}
@Override
public void processOpts() {
super.processOpts();
if (additionalProperties.containsKey(CodegenConstants.PACKAGE_NAME)) {
setPackageName((String) additionalProperties.get(CodegenConstants.PACKAGE_NAME));
} else {
setPackageName("swagger");
}
if (additionalProperties.containsKey(CodegenConstants.PACKAGE_VERSION)) {
setPackageVersion((String) additionalProperties.get(CodegenConstants.PACKAGE_VERSION));
} else {
setPackageVersion("1.0.0");
}
additionalProperties.put(CodegenConstants.PACKAGE_NAME, packageName);
additionalProperties.put(CodegenConstants.PACKAGE_VERSION, packageVersion);
additionalProperties.put("apiDocPath", apiDocPath);
additionalProperties.put("modelDocPath", modelDocPath);
apiTestTemplateFiles.clear(); // TODO: add api test template
modelTestTemplateFiles.clear(); // TODO: add model test template
apiDocTemplateFiles.clear(); // TODO: add api doc template
modelDocTemplateFiles.clear(); // TODO: add model doc template
modelPackage = packageName;
apiPackage = packageName;
supportingFiles.add(new SupportingFile("README.mustache", "", "README.md"));
supportingFiles.add(new SupportingFile("git_push.sh.mustache", "", "git_push.sh"));
supportingFiles.add(new SupportingFile("gitignore.mustache", "", ".gitignore"));
supportingFiles.add(new SupportingFile("description.mustache", "", "DESCRIPTION"));
supportingFiles.add(new SupportingFile("Rbuildignore.mustache", "", ".Rbuildignore"));
supportingFiles.add(new SupportingFile(".travis.yml", "", ".travis.yml"));
supportingFiles.add(new SupportingFile("response.mustache", "/R", "Response.r"));
supportingFiles.add(new SupportingFile("element.mustache", "/R", "Element.r"));
supportingFiles.add(new SupportingFile("api_client.mustache", "/R", "ApiClient.r"));
supportingFiles.add(new SupportingFile("NAMESPACE.mustache", "", "NAMESPACE"));
}
@Override
public String escapeReservedWord(String name)
{
// Can't start with an underscore, as our fields need to start with an
// UppercaseLetter so that R treats them as public/visible.
// Options?
// - MyName
// - AName
// - TheName
// - XName
// - X_Name
// ... or maybe a suffix?
// - Name_ ... think this will work.
if(this.reservedWordsMappings().containsKey(name)) {
return this.reservedWordsMappings().get(name);
}
return camelize(name) + '_';
}
@Override
public String apiFileFolder() {
return outputFolder + File.separator + "R" + File.separator;
}
public String modelFileFolder() {
return outputFolder + File.separator + "R" + File.separator;
}
@Override
public String toVarName(String name) {
// replace - with _ e.g. created-at => created_at
name = sanitizeName(name.replaceAll("-", "_"));
// if it's all uppper case, do nothing
if (name.matches("^[A-Z_]*$"))
return name;
// convert variable name to snake case
// PetId => pet_id
name = underscore(name);
// for reserved word or word starting with number, append _
if (isReservedWord(name))
name = escapeReservedWord(name);
// for reserved word or word starting with number, append _
if (name.matches("^\\d.*"))
name = "Var" + name;
return name;
}
@Override
public String toParamName(String name) {
return toVarName(name);
}
@Override
public String toModelName(String name) {
return toModelFilename(name);
}
@Override
public String toModelFilename(String name) {
if (!StringUtils.isEmpty(modelNamePrefix)) {
name = modelNamePrefix + "_" + name;
}
if (!StringUtils.isEmpty(modelNameSuffix)) {
name = name + "_" + modelNameSuffix;
}
name = sanitizeName(name);
// model name cannot use reserved keyword, e.g. return
if (isReservedWord(name)) {
LOGGER.warn(name + " (reserved word) cannot be used as model name. Renamed to " + camelize("model_" + name));
name = "model_" + name; // e.g. return => ModelReturn (after camelize)
}
// model name starts with number
if (name.matches("^\\d.*")) {
LOGGER.warn(name + " (model name starts with number) cannot be used as model name. Renamed to " + camelize("model_" + name));
name = "model_" + name; // e.g. 200Response => Model200Response (after camelize)
}
return camelize(name);
}
@Override
public String toApiFilename(String name) {
// replace - with _ e.g. created-at => created_at
name = name.replaceAll("-", "_"); // FIXME: a parameter should not be assigned. Also declare the methods parameters as 'final'.
// e.g. PetApi.r => pet_api.r
return camelize(name + "_api");
}
@Override
public String apiDocFileFolder() {
return (outputFolder + "/" + apiDocPath).replace('/', File.separatorChar);
}
@Override
public String modelDocFileFolder() {
return (outputFolder + "/" + modelDocPath).replace('/', File.separatorChar);
}
@Override
public String toModelDocFilename(String name) {
return toModelName(name);
}
@Override
public String toApiDocFilename(String name) {
return toApiName(name);
}
@Override
public String toApiName(String name) {
return camelize(super.toApiName(name));
}
@Override
public String getTypeDeclaration(Schema schema) {
if(schema instanceof ArraySchema) {
ArraySchema arraySchema = (ArraySchema) schema;
Schema inner = arraySchema.getItems();
return getTypeDeclaration(inner);
} else if (schema instanceof MapSchema) {
MapSchema mp = (MapSchema) schema;
Object innerObject = mp.getAdditionalProperties();
if (innerObject instanceof Schema) {
return getTypeDeclaration((Schema) innerObject);
}
}
// Not using the supertype invocation, because we want to UpperCamelize
// the type.
String schemaType = getSchemaType(schema);
if (typeMapping.containsKey(schemaType)) {
return typeMapping.get(schemaType);
}
if (typeMapping.containsValue(schemaType)) {
return schemaType;
}
if (languageSpecificPrimitives.contains(schemaType)) {
return schemaType;
}
return toModelName(schemaType);
}
@Override
public String getSchemaType(Schema schema) {
String swaggerType = super.getSchemaType(schema);
String type = null;
if (typeMapping.containsKey(swaggerType)) {
type = typeMapping.get(swaggerType);
if (languageSpecificPrimitives.contains(type))
return (type);
} else {
type = swaggerType;
}
return type;
}
@Override
public String toOperationId(String operationId) {
String sanitizedOperationId = sanitizeName(operationId);
// method name cannot use reserved keyword, e.g. return
if (isReservedWord(sanitizedOperationId)) {
LOGGER.warn(operationId + " (reserved word) cannot be used as method name. Renamed to " + underscore("call_" + operationId));
sanitizedOperationId = "call_" + sanitizedOperationId;
}
return underscore(sanitizedOperationId);
}
@Override
public Map postProcessModels(Map objs) {
// remove model imports to avoid error
List> imports = (List>) objs.get("imports");
final String prefix = modelPackage();
Iterator> iterator = imports.iterator();
while (iterator.hasNext()) {
String _import = iterator.next().get("import");
if (_import.startsWith(prefix))
iterator.remove();
}
// recursively add import for mapping one type to multiple imports
List> recursiveImports = (List>) objs.get("imports");
if (recursiveImports == null)
return objs;
ListIterator> listIterator = imports.listIterator();
while (listIterator.hasNext()) {
String _import = listIterator.next().get("import");
// if the import package happens to be found in the importMapping (key)
// add the corresponding import package to the list
if (importMapping.containsKey(_import)) {
listIterator.add(createMapping("import", importMapping.get(_import)));
}
}
return postProcessModelsEnum(objs);
}
@Override
protected boolean needToImport(String type) {
return !defaultIncludes.contains(type) && !languageSpecificPrimitives.contains(type);
}
@Override
public String getDefaultTemplateDir() {
return "R";
}
public void setPackageName(String packageName) {
this.packageName = packageName;
}
public void setPackageVersion(String packageVersion) {
this.packageVersion = packageVersion;
}
@Override
public String escapeQuotationMark(String input) {
// remove " to avoid code injection
return input.replace("\"", "");
}
@Override
public String escapeUnsafeCharacters(String input) {
return input.replace("]]", "] ]");
}
public Map createMapping(String key, String value){
Map customImport = new HashMap();
customImport.put(key, value);
return customImport;
}
@Override
public String toEnumValue(String value, String datatype) {
if ("int".equals(datatype) || "double".equals(datatype) || "float".equals(datatype)) {
return value;
} else {
return escapeText(value);
}
}
@Override
public String toEnumDefaultValue(String value, String datatype) {
return datatype + "_" + value;
}
@Override
public String toEnumVarName(String name, String datatype) {
if (name.length() == 0) {
return "EMPTY";
}
// number
if ("int".equals(datatype) || "double".equals(datatype) || "float".equals(datatype)) {
String varName = name;
varName = varName.replaceAll("-", "MINUS_");
varName = varName.replaceAll("\\+", "PLUS_");
varName = varName.replaceAll("\\.", "_DOT_");
return varName;
}
// for symbol, e.g. $, #
if (getSymbolName(name) != null) {
return getSymbolName(name).toUpperCase();
}
// string
String enumName = sanitizeName(underscore(name).toUpperCase());
enumName = enumName.replaceFirst("^_", "");
enumName = enumName.replaceFirst("_$", "");
if (isReservedWord(enumName) || enumName.matches("\\d.*")) { // reserved word or starts with number
return escapeReservedWord(enumName);
} else {
return enumName;
}
}
@Override
public String toEnumName(CodegenProperty property) {
String enumName = underscore(toModelName(property.name)).toUpperCase();
// remove [] for array or map of enum
enumName = enumName.replace("[]", "");
if (enumName.matches("\\d.*")) { // starts with number
return "_" + enumName;
} else {
return enumName;
}
}
}
