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/*
* Copyright 2018 OpenAPI-Generator Contributors (https://openapi-generator.tech)
*
* 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.languages;
import lombok.Setter;
import org.openapitools.codegen.CliOption;
import org.openapitools.codegen.CodegenConstants;
import org.openapitools.codegen.CodegenOperation;
import org.openapitools.codegen.CodegenType;
import org.openapitools.codegen.SupportingFile;
import org.openapitools.codegen.meta.features.*;
import org.openapitools.codegen.model.ModelMap;
import org.openapitools.codegen.model.OperationMap;
import org.openapitools.codegen.model.OperationsMap;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.util.Arrays;
import java.util.EnumSet;
import java.util.List;
public class GoGinServerCodegen extends AbstractGoCodegen {
private final Logger LOGGER = LoggerFactory.getLogger(GoGinServerCodegen.class);
public static final String INTERFACE_ONLY = "interfaceOnly";
@Setter protected boolean interfaceOnly = false;
protected String apiVersion = "1.0.0";
protected int serverPort = 8080;
protected String projectName = "openapi-server";
protected String apiPath = "go";
public GoGinServerCodegen() {
super();
modifyFeatureSet(features -> features
.includeDocumentationFeatures(DocumentationFeature.Readme)
.wireFormatFeatures(EnumSet.of(WireFormatFeature.JSON, WireFormatFeature.XML))
.securityFeatures(EnumSet.noneOf(
SecurityFeature.class
))
.excludeGlobalFeatures(
GlobalFeature.XMLStructureDefinitions,
GlobalFeature.Callbacks,
GlobalFeature.LinkObjects,
GlobalFeature.ParameterStyling
)
.excludeSchemaSupportFeatures(
SchemaSupportFeature.Polymorphism
)
.excludeParameterFeatures(
ParameterFeature.Cookie
)
);
// set the output folder here
outputFolder = "generated-code/go";
/*
* Models. You can write model files using the modelTemplateFiles map.
* if you want to create one template for file, you can do so here.
* for multiple files for model, just put another entry in the `modelTemplateFiles` with
* a different extension
*/
modelTemplateFiles.put(
"model.mustache",
".go");
/*
* Api classes. You can write classes for each Api file with the apiTemplateFiles map.
* as with models, add multiple entries with different extensions for multiple files per
* class
*/
apiTemplateFiles.put(
"controller-api.mustache", // the template to use
".go"); // the extension for each file to write
/*
* Template Location. This is the location which templates will be read from. The generator
* will use the resource stream to attempt to read the templates.
*/
embeddedTemplateDir = templateDir = "go-gin-server";
/*
* Reserved words. Override this with reserved words specific to your language
*/
setReservedWordsLowerCase(
Arrays.asList(
// data type
"string", "bool", "uint", "uint8", "uint16", "uint32", "uint64",
"int", "int8", "int16", "int32", "int64", "float32", "float64",
"complex64", "complex128", "rune", "byte", "uintptr",
"break", "default", "func", "interface", "select",
"case", "defer", "go", "map", "struct",
"chan", "else", "goto", "package", "switch",
"const", "fallthrough", "if", "range", "type",
"continue", "for", "import", "return", "var", "error", "nil")
// Added "error" as it's used so frequently that it may as well be a keyword
);
cliOptions.add(new CliOption("apiPath", "Name of the folder that contains the Go source code")
.defaultValue(apiPath));
cliOptions.add(CliOption.newBoolean(INTERFACE_ONLY,
"Whether to generate only API interface stubs without the implementation files.", interfaceOnly));
CliOption optServerPort = new CliOption("serverPort", "The network port the generated server binds to");
optServerPort.setType("int");
optServerPort.defaultValue(Integer.toString(serverPort));
cliOptions.add(optServerPort);
cliOptions.add(CliOption.newBoolean(CodegenConstants.ENUM_CLASS_PREFIX, CodegenConstants.ENUM_CLASS_PREFIX_DESC));
}
@Override
public OperationsMap postProcessOperationsWithModels(OperationsMap objs, List allModels) {
objs = super.postProcessOperationsWithModels(objs, allModels);
OperationMap operations = objs.getOperations();
List operationList = operations.getOperation();
for (CodegenOperation op : operationList) {
if (op.path != null) {
op.path = op.path.replaceAll("\\{(.*?)\\}", ":$1");
}
}
return objs;
}
@Override
public void processOpts() {
super.processOpts();
if (additionalProperties.containsKey(CodegenConstants.PACKAGE_NAME)) {
setPackageName((String) additionalProperties.get(CodegenConstants.PACKAGE_NAME));
} else {
setPackageName("openapi");
additionalProperties.put(CodegenConstants.PACKAGE_NAME, this.packageName);
}
if (additionalProperties.containsKey(INTERFACE_ONLY)) {
this.setInterfaceOnly(Boolean.parseBoolean(additionalProperties.get(INTERFACE_ONLY).toString()));
}
/*
* Additional Properties. These values can be passed to the templates and
* are available in models, apis, and supporting files
*/
if (additionalProperties.containsKey("apiVersion")) {
this.apiVersion = (String) additionalProperties.get("apiVersion");
} else {
additionalProperties.put("apiVersion", apiVersion);
}
if (additionalProperties.containsKey("serverPort")) {
this.serverPort = Integer.parseInt((String) additionalProperties.get("serverPort"));
} else {
additionalProperties.put("serverPort", serverPort);
}
if (additionalProperties.containsKey("apiPath")) {
this.apiPath = (String) additionalProperties.get("apiPath");
} else {
additionalProperties.put("apiPath", apiPath);
}
if (additionalProperties.containsKey(CodegenConstants.ENUM_CLASS_PREFIX)) {
setEnumClassPrefix(Boolean.parseBoolean(additionalProperties.get(CodegenConstants.ENUM_CLASS_PREFIX).toString()));
if (enumClassPrefix) {
additionalProperties.put(CodegenConstants.ENUM_CLASS_PREFIX, true);
}
}
modelPackage = packageName;
apiPackage = packageName;
if (interfaceOnly) {
apiTemplateFiles.clear();
apiTemplateFiles.put("interface-api.mustache", ".go");
}
/*
* Supporting Files. You can write single files for the generator with the
* entire object tree available. If the input file has a suffix of `.mustache
* it will be processed by the template engine. Otherwise, it will be copied
*/
supportingFiles.add(new SupportingFile("openapi.mustache", "api", "openapi.yaml"));
supportingFiles.add(new SupportingFile("main.mustache", "", "main.go"));
supportingFiles.add(new SupportingFile("Dockerfile.mustache", "", "Dockerfile"));
supportingFiles.add(new SupportingFile("routers.mustache", apiPath, "routers.go"));
supportingFiles.add(new SupportingFile("README.mustache", apiPath, "README.md")
.doNotOverwrite());
supportingFiles.add(new SupportingFile("go.mod.mustache", "go.mod"));
}
@Override
public String apiPackage() {
return apiPath;
}
/**
* Configures the type of generator.
*
* @return the CodegenType for this generator
* @see org.openapitools.codegen.CodegenType
*/
@Override
public CodegenType getTag() {
return CodegenType.SERVER;
}
/**
* Configures a friendly name for the generator. This will be used by the generator
* to select the library with the -g flag.
*
* @return the friendly name for the generator
*/
@Override
public String getName() {
return "go-gin-server";
}
/**
* Returns human-friendly help for the generator. Provide the consumer with help
* tips, parameters here
*
* @return A string value for the help message
*/
@Override
public String getHelp() {
return "Generates a Go server library with the gin framework using OpenAPI-Generator." +
"By default, it will also generate service classes.";
}
/**
* Location to write api files. You can use the apiPackage() as defined when the class is
* instantiated
*/
@Override
public String apiFileFolder() {
return outputFolder + File.separator + apiPackage().replace('.', File.separatorChar);
}
@Override
public String modelFileFolder() {
return outputFolder + File.separator + apiPackage().replace('.', File.separatorChar);
}
}
