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io.swagger.codegen.languages.AspNetCoreServerCodegen Maven / Gradle / Ivy
package io.swagger.codegen.languages;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.samskivert.mustache.Mustache;
import io.swagger.codegen.*;
import io.swagger.models.*;
import io.swagger.models.auth.SecuritySchemeDefinition;
import io.swagger.util.Json;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.util.*;
import java.util.Map.Entry;
import static java.util.UUID.randomUUID;
public class AspNetCoreServerCodegen extends AbstractCSharpCodegen {
private String packageGuid = "{" + randomUUID().toString().toUpperCase() + "}";
private final String DEFAULT_ASP_NET_CORE_VERSION = "3.0";
private String aspNetCoreVersion;
@SuppressWarnings("hiding")
protected Logger LOGGER = LoggerFactory.getLogger(AspNetCoreServerCodegen.class);
public AspNetCoreServerCodegen() {
super();
setSourceFolder("src");
outputFolder = "generated-code" + File.separator + this.getName();
modelTemplateFiles.put("model.mustache", ".cs");
aspNetCoreVersion = DEFAULT_ASP_NET_CORE_VERSION;
// contextually reserved words
// NOTE: C# uses camel cased reserved words, while models are title cased. We don't want lowercase comparisons.
reservedWords.addAll(
Arrays.asList("var", "async", "await", "dynamic", "yield")
);
cliOptions.clear();
// CLI options
addOption(CodegenConstants.PACKAGE_NAME,
"C# package name (convention: Title.Case).",
this.packageName);
addOption(CodegenConstants.PACKAGE_VERSION,
"C# package version.",
this.packageVersion);
addOption(CodegenConstants.OPTIONAL_PROJECT_GUID,
CodegenConstants.OPTIONAL_PROJECT_GUID_DESC,
null);
addOption(CodegenConstants.SOURCE_FOLDER,
CodegenConstants.SOURCE_FOLDER_DESC,
sourceFolder);
addOption(CodegenConstants.ASP_NET_CORE_VERSION,
"aspnetcore version to use, current options are: 2.0, 2.1, 2.2 and 3.0 (default)",
this.aspNetCoreVersion);
addOption(CodegenConstants.INTERFACE_ONLY,
"creates interfaces controller only",
null);
addOption(CodegenConstants.INTERFACE_CONTROLLER,
"creates interfaces and default implementation for controllers",
null);
addOption(CodegenConstants.PRESERVE_COMMENT_NEWLINES,
"Preserve newlines in comments",
String.valueOf(this.preserveNewLines));
// CLI Switches
addSwitch(CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG,
CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG_DESC,
this.sortParamsByRequiredFlag);
addSwitch(CodegenConstants.USE_DATETIME_OFFSET,
CodegenConstants.USE_DATETIME_OFFSET_DESC,
this.useDateTimeOffsetFlag);
addSwitch(CodegenConstants.USE_COLLECTION,
CodegenConstants.USE_COLLECTION_DESC,
this.useCollection);
addSwitch(CodegenConstants.RETURN_ICOLLECTION,
CodegenConstants.RETURN_ICOLLECTION_DESC,
this.returnICollection);
}
@Override
public CodegenType getTag() {
return CodegenType.SERVER;
}
@Override
public String getName() {
return "aspnetcore";
}
@Override
public String getHelp() {
return "Generates an ASP.NET Core Web API server.";
}
@Override
public void processOpts() {
super.processOpts();
if (additionalProperties.containsKey("aspnetCoreVersion")) {
setAspNetCoreVersion(String.valueOf(additionalProperties.get("aspnetCoreVersion")));
}
if (additionalProperties.containsKey(CodegenConstants.OPTIONAL_PROJECT_GUID)) {
setPackageGuid((String) additionalProperties.get(CodegenConstants.OPTIONAL_PROJECT_GUID));
}
String packageFolder = sourceFolder + File.separator + packageName;
boolean interfaceOnly = Boolean.valueOf(String.valueOf(additionalProperties.get(CodegenConstants.INTERFACE_ONLY)));
boolean interfaceController = Boolean.valueOf(String.valueOf(additionalProperties.get(CodegenConstants.INTERFACE_CONTROLLER)));
if (this.aspNetCoreVersion.equals("2.0")) {
apiTemplateFiles.put("controller.mustache", ".cs");
addInterfaceControllerTemplate(interfaceOnly, interfaceController);
supportingFiles.add(new SupportingFile("Filters" + File.separator + "BasePathFilter.mustache", packageFolder + File.separator + "Filters", "BasePathFilter.cs"));
supportingFiles.add(new SupportingFile("Filters" + File.separator + "GeneratePathParamsValidationFilter.mustache", packageFolder + File.separator + "Filters", "GeneratePathParamsValidationFilter.cs"));
supportingFiles.add(new SupportingFile("Startup.mustache", packageFolder, "Startup.cs"));
supportingFiles.add(new SupportingFile("Program.mustache", packageFolder, "Program.cs"));
supportingFiles.add(new SupportingFile("Project.csproj.mustache", packageFolder, this.packageName + ".csproj"));
supportingFiles.add(new SupportingFile("Dockerfile.mustache", packageFolder, "Dockerfile"));
} else if (this.aspNetCoreVersion.equals("2.1") || this.aspNetCoreVersion.equals("2.2")) {
apiTemplateFiles.put("2.1/controller.mustache", ".cs");
addInterfaceControllerTemplate(interfaceOnly, interfaceController);
supportingFiles.add(new SupportingFile("Filters" + File.separator + "BasePathFilter.mustache", packageFolder + File.separator + "Filters", "BasePathFilter.cs"));
supportingFiles.add(new SupportingFile("Filters" + File.separator + "GeneratePathParamsValidationFilter.mustache", packageFolder + File.separator + "Filters", "GeneratePathParamsValidationFilter.cs"));
supportingFiles.add(new SupportingFile("Startup.mustache", packageFolder, "Startup.cs"));
supportingFiles.add(new SupportingFile("2.1/Program.mustache", packageFolder, "Program.cs"));
supportingFiles.add(new SupportingFile("2.1/Project.csproj.mustache", packageFolder, this.packageName + ".csproj"));
supportingFiles.add(new SupportingFile("2.1/Dockerfile.mustache", packageFolder, "Dockerfile"));
} else {
apiTemplateFiles.put("3.0/controller.mustache", ".cs");
addInterfaceControllerTemplate(interfaceOnly, interfaceController);
supportingFiles.add(new SupportingFile("3.0" + File.separator + "Filters" + File.separator + "BasePathFilter.mustache", packageFolder + File.separator + "Filters", "BasePathFilter.cs"));
supportingFiles.add(new SupportingFile("3.0" + File.separator + "Filters" + File.separator + "GeneratePathParamsValidationFilter.mustache", packageFolder + File.separator + "Filters", "GeneratePathParamsValidationFilter.cs"));
supportingFiles.add(new SupportingFile("3.0/Startup.mustache", packageFolder, "Startup.cs"));
supportingFiles.add(new SupportingFile("3.0/Program.mustache", packageFolder, "Program.cs"));
supportingFiles.add(new SupportingFile("3.0/Project.csproj.mustache", packageFolder, this.packageName + ".csproj"));
supportingFiles.add(new SupportingFile("3.0/Dockerfile.mustache", packageFolder, "Dockerfile"));
}
additionalProperties.put("aspNetCoreVersion", aspNetCoreVersion);
additionalProperties.put("packageGuid", packageGuid);
additionalProperties.put("dockerTag", this.packageName.toLowerCase());
apiPackage = packageName + ".Controllers";
modelPackage = packageName + ".Models";
supportingFiles.add(new SupportingFile("NuGet.Config", "", "NuGet.Config"));
supportingFiles.add(new SupportingFile("build.sh.mustache", "", "build.sh"));
supportingFiles.add(new SupportingFile("build.bat.mustache", "", "build.bat"));
supportingFiles.add(new SupportingFile("README.mustache", "", "README.md"));
supportingFiles.add(new SupportingFile("Solution.mustache", "", this.packageName + ".sln"));
supportingFiles.add(new SupportingFile("gitignore", packageFolder, ".gitignore"));
supportingFiles.add(new SupportingFile("appsettings.json", packageFolder, "appsettings.json"));
supportingFiles.add(new SupportingFile("validateModel.mustache", packageFolder + File.separator + "Attributes", "ValidateModelStateAttribute.cs"));
supportingFiles.add(new SupportingFile("web.config", packageFolder, "web.config"));
supportingFiles.add(new SupportingFile("Properties" + File.separator + "launchSettings.json", packageFolder + File.separator + "Properties", "launchSettings.json"));
supportingFiles.add(new SupportingFile("wwwroot" + File.separator + "index.html", packageFolder + File.separator + "wwwroot", "index.html"));
supportingFiles.add(new SupportingFile("wwwroot" + File.separator + "web.config", packageFolder + File.separator + "wwwroot", "web.config"));
supportingFiles.add(new SupportingFile("wwwroot" + File.separator + "swagger-original.mustache", packageFolder + File.separator + "wwwroot", "swagger-original.json"));
}
@Override
public void setSourceFolder(final String sourceFolder) {
if(sourceFolder == null) {
LOGGER.warn("No sourceFolder specified, using default");
this.sourceFolder = "src" + File.separator + this.packageName;
} else if(!sourceFolder.equals("src") && !sourceFolder.startsWith("src")) {
LOGGER.warn("ASP.NET Core requires source code exists under src. Adjusting.");
this.sourceFolder = "src" + File.separator + sourceFolder;
} else {
this.sourceFolder = sourceFolder;
}
}
public void setPackageGuid(String packageGuid) {
this.packageGuid = packageGuid;
}
@Override
public String apiFileFolder() {
return outputFolder + File.separator + sourceFolder + File.separator + packageName + File.separator + "Controllers";
}
@Override
public String apiFilename(String templateName, String tag) {
boolean isInterface = templateName.equalsIgnoreCase("icontroller.mustache");
String suffix = apiTemplateFiles().get(templateName);
if (isInterface) {
return apiFileFolder() + "/I" + toApiFilename(tag) + suffix;
}
return apiFileFolder() + '/' + toApiFilename(tag) + suffix;
}
@Override
public String modelFileFolder() {
return outputFolder + File.separator + sourceFolder + File.separator + packageName + File.separator + "Models";
}
@Override
public Map postProcessSupportingFileData(Map objs) {
Swagger swagger = (Swagger)objs.get("swagger");
if(swagger != null) {
try {
objs.put("swagger-json", Json.pretty().writeValueAsString(swagger).replace("\r\n", "\n"));
} catch (JsonProcessingException e) {
LOGGER.error(e.getMessage(), e);
}
}
return super.postProcessSupportingFileData(objs);
}
@Override
protected void processOperation(CodegenOperation operation) {
super.processOperation(operation);
// HACK: Unlikely in the wild, but we need to clean operation paths for MVC Routing
if (operation.path != null) {
String original = operation.path;
operation.path = operation.path.replace("?", "/");
if (!original.equals(operation.path)) {
LOGGER.warn("Normalized " + original + " to " + operation.path + ". Please verify generated source.");
}
}
// Converts, for example, PUT to HttpPut for controller attributes
operation.httpMethod = "Http" + operation.httpMethod.substring(0, 1) + operation.httpMethod.substring(1).toLowerCase();
}
@Override
public Mustache.Compiler processCompiler(Mustache.Compiler compiler) {
// To avoid unexpected behaviors when options are passed programmatically such as { "useCollection": "" }
return super.processCompiler(compiler).emptyStringIsFalse(true);
}
@Override
public List fromSecurity(Map schemes) {
final List securities = super.fromSecurity(schemes);
if (securities == null || securities.isEmpty()) {
return securities;
}
boolean hasBasic = false;
boolean hasBearer = false;
boolean hasApiKey = false;
for (int index = 0; index < securities.size(); index++) {
final CodegenSecurity codegenSecurity = securities.get(index);
if (codegenSecurity.isBasic) {
hasBasic = true;
}
if (codegenSecurity.isApiKey) {
hasApiKey = true;
}
}
final String packageFolder = sourceFolder + File.separator + packageName;
if (hasBasic) {
supportingFiles.add(new SupportingFile("Security/BasicAuthenticationHandler.mustache", packageFolder + File.separator + "Security", "BasicAuthenticationHandler.cs"));
}
if (hasBearer) {
supportingFiles.add(new SupportingFile("Security/BearerAuthenticationHandler.mustache", packageFolder + File.separator + "Security", "BearerAuthenticationHandler.cs"));
}
if (hasApiKey) {
supportingFiles.add(new SupportingFile("Security/ApiKeyAuthenticationHandler.mustache", packageFolder + File.separator + "Security", "ApiKeyAuthenticationHandler.cs"));
}
return securities;
}
private void addInterfaceControllerTemplate(boolean interfaceOnly, boolean interfaceController) {
if (interfaceController) {
apiTemplateFiles.put("icontroller.mustache", ".cs");
additionalProperties.put("interfaceController", Boolean.TRUE);
}
if (interfaceOnly) {
apiTemplateFiles.clear();
apiTemplateFiles.put("icontroller.mustache", ".cs");
}
}
private void setAspNetCoreVersion(String optionValue) {
if (StringUtils.isBlank(optionValue)) {
return;
}
this.aspNetCoreVersion = optionValue;
if (!this.aspNetCoreVersion.equals("2.0") && !this.aspNetCoreVersion.equals("2.1") && !this.aspNetCoreVersion.equals("2.2") && !this.aspNetCoreVersion.equals("3.0")) {
LOGGER.error("version '" + this.aspNetCoreVersion + "' is not supported, switching to default version: '" + DEFAULT_ASP_NET_CORE_VERSION + "'");
this.aspNetCoreVersion = DEFAULT_ASP_NET_CORE_VERSION;
}
}
}
