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io.swagger.servlet.Reader Maven / Gradle / Ivy
package io.swagger.servlet;
import io.swagger.annotations.ApiKeyAuthDefinition;
import io.swagger.annotations.BasicAuthDefinition;
import io.swagger.annotations.Info;
import io.swagger.annotations.OAuth2Definition;
import io.swagger.annotations.Scope;
import io.swagger.annotations.SwaggerDefinition;
import io.swagger.models.Contact;
import io.swagger.models.ExternalDocs;
import io.swagger.models.License;
import io.swagger.models.Operation;
import io.swagger.models.Path;
import io.swagger.models.Response;
import io.swagger.models.Scheme;
import io.swagger.models.Swagger;
import io.swagger.models.Tag;
import io.swagger.models.auth.In;
import io.swagger.models.parameters.Parameter;
import io.swagger.servlet.extensions.ReaderExtension;
import io.swagger.servlet.extensions.ReaderExtensions;
import io.swagger.util.BaseReaderUtils;
import io.swagger.util.PathUtils;
import io.swagger.util.ReflectionUtils;
import org.apache.commons.lang3.StringUtils;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
/**
* The Reader class scans classes for Swagger annotations.
*/
public class Reader {
private final Swagger swagger;
private Reader(Swagger swagger) {
this.swagger = swagger;
}
/**
* Scans a set of classes for Swagger annotations.
*
* @param swagger is the Swagger instance
* @param classes are a set of classes to scan
*/
public static void read(Swagger swagger, Set> classes) {
final Reader reader = new Reader(swagger);
for (Class cls : classes) {
final ReaderContext context = new ReaderContext(swagger, cls, "", null, false, new ArrayList(),
new ArrayList(), new ArrayList(), new ArrayList());
reader.read(context);
}
}
private void read(ReaderContext context) {
final SwaggerDefinition swaggerDefinition = context.getCls().getAnnotation(SwaggerDefinition.class);
if (swaggerDefinition != null) {
readSwaggerConfig(swaggerDefinition);
}
for (Method method : context.getCls().getMethods()) {
if (ReflectionUtils.isOverriddenMethod(method, context.getCls())) {
continue;
}
final Operation operation = new Operation();
String operationPath = null;
String httpMethod = null;
final Type[] genericParameterTypes = method.getGenericParameterTypes();
final Annotation[][] paramAnnotations = method.getParameterAnnotations();
for (ReaderExtension extension : ReaderExtensions.getExtensions()) {
if (operationPath == null) {
operationPath = extension.getPath(context, method);
}
if (httpMethod == null) {
httpMethod = extension.getHttpMethod(context, method);
}
if (operationPath == null || httpMethod == null) {
continue;
}
if (extension.isReadable(context)) {
extension.setDeprecated(operation, method);
extension.applyConsumes(context, operation, method);
extension.applyProduces(context, operation, method);
extension.applyOperationId(operation, method);
extension.applySummary(operation, method);
extension.applyDescription(operation, method);
extension.applySchemes(context, operation, method);
extension.applySecurityRequirements(context, operation, method);
extension.applyTags(context, operation, method);
extension.applyResponses(context, operation, method);
extension.applyImplicitParameters(context, operation, method);
extension.applyExtensions( context, operation, method );
for (int i = 0; i < genericParameterTypes.length; i++) {
extension.applyParameters(context, operation, genericParameterTypes[i], paramAnnotations[i]);
}
}
}
if (httpMethod != null) {
if (operation.getResponses() == null) {
operation.defaultResponse(new Response().description("successful operation"));
}
final Map regexMap = new HashMap();
final String parsedPath = PathUtils.parsePath(operationPath, regexMap);
Path path = swagger.getPath(parsedPath);
if (path == null) {
path = new Path();
swagger.path(parsedPath, path);
}
path.set(httpMethod.toLowerCase(), operation);
}
}
}
private void readSwaggerConfig(SwaggerDefinition config) {
readInfoConfig(config);
if (StringUtils.isNotBlank(config.basePath())) {
swagger.setBasePath(config.basePath());
}
if (StringUtils.isNotBlank(config.host())) {
swagger.setHost(config.host());
}
for (String consume : config.consumes()) {
if (StringUtils.isNotBlank(consume)) {
swagger.addConsumes(consume);
}
}
for (String produce : config.produces()) {
if (StringUtils.isNotBlank(produce)) {
swagger.addProduces(produce);
}
}
if (StringUtils.isNotBlank(config.externalDocs().value())) {
ExternalDocs externalDocs = swagger.getExternalDocs();
if (externalDocs == null) {
externalDocs = new ExternalDocs();
swagger.setExternalDocs(externalDocs);
}
externalDocs.setDescription(config.externalDocs().value());
if (StringUtils.isNotBlank(config.externalDocs().url())) {
externalDocs.setUrl(config.externalDocs().url());
}
}
for (OAuth2Definition oAuth2Config : config.securityDefinition().oAuth2Definitions()) {
io.swagger.models.auth.OAuth2Definition oAuth2Definition = new io.swagger.models.auth.OAuth2Definition();
OAuth2Definition.Flow flow = oAuth2Config.flow();
if (flow.equals(OAuth2Definition.Flow.ACCESS_CODE)) {
oAuth2Definition = oAuth2Definition.accessCode(oAuth2Config.authorizationUrl(), oAuth2Config.tokenUrl());
} else if (flow.equals(OAuth2Definition.Flow.APPLICATION)) {
oAuth2Definition = oAuth2Definition.application(oAuth2Config.tokenUrl());
} else if (flow.equals(OAuth2Definition.Flow.IMPLICIT)) {
oAuth2Definition = oAuth2Definition.implicit(oAuth2Config.authorizationUrl());
} else {
oAuth2Definition = oAuth2Definition.password(oAuth2Config.tokenUrl());
}
for (Scope scope : oAuth2Config.scopes()) {
oAuth2Definition.addScope(scope.name(), scope.description());
}
oAuth2Definition.setDescription(oAuth2Config.description());
swagger.addSecurityDefinition(oAuth2Config.key(), oAuth2Definition);
}
for (ApiKeyAuthDefinition[] apiKeyAuthConfigs : new ApiKeyAuthDefinition[][] {
config.securityDefinition().apiKeyAuthDefintions(), config.securityDefinition().apiKeyAuthDefinitions() }) {
for (ApiKeyAuthDefinition apiKeyAuthConfig : apiKeyAuthConfigs) {
io.swagger.models.auth.ApiKeyAuthDefinition apiKeyAuthDefinition = new io.swagger.models.auth.ApiKeyAuthDefinition();
apiKeyAuthDefinition.setName(apiKeyAuthConfig.name());
apiKeyAuthDefinition.setIn(In.forValue(apiKeyAuthConfig.in().toValue()));
apiKeyAuthDefinition.setDescription(apiKeyAuthConfig.description());
swagger.addSecurityDefinition(apiKeyAuthConfig.key(), apiKeyAuthDefinition);
}
}
for (BasicAuthDefinition[] basicAuthConfigs : new BasicAuthDefinition[][] {
config.securityDefinition().basicAuthDefinions(), config.securityDefinition().basicAuthDefinitions() }) {
for (BasicAuthDefinition basicAuthConfig : basicAuthConfigs) {
io.swagger.models.auth.BasicAuthDefinition basicAuthDefinition = new io.swagger.models.auth.BasicAuthDefinition();
basicAuthDefinition.setDescription(basicAuthConfig.description());
swagger.addSecurityDefinition(basicAuthConfig.key(), basicAuthDefinition);
}
}
for (io.swagger.annotations.Tag tagConfig : config.tags()) {
if (StringUtils.isNotBlank(tagConfig.name())) {
final Tag tag = new Tag();
tag.setName(tagConfig.name());
tag.setDescription(tagConfig.description());
if (StringUtils.isNotBlank(tagConfig.externalDocs().value())) {
tag.setExternalDocs(new ExternalDocs(tagConfig.externalDocs().value(),
tagConfig.externalDocs().url()));
}
tag.getVendorExtensions().putAll(BaseReaderUtils.parseExtensions(tagConfig.extensions()));
swagger.addTag(tag);
}
}
for (SwaggerDefinition.Scheme scheme : config.schemes()) {
if (scheme != SwaggerDefinition.Scheme.DEFAULT) {
swagger.addScheme(Scheme.forValue(scheme.name()));
}
}
}
private void readInfoConfig(SwaggerDefinition config) {
final Info infoConfig = config.info();
io.swagger.models.Info info = swagger.getInfo();
if (info == null) {
info = new io.swagger.models.Info();
swagger.setInfo(info);
}
if (StringUtils.isNotBlank(infoConfig.description())) {
info.setDescription(infoConfig.description());
}
if (StringUtils.isNotBlank(infoConfig.termsOfService())) {
info.setTermsOfService(infoConfig.termsOfService());
}
if (StringUtils.isNotBlank(infoConfig.title())) {
info.setTitle(infoConfig.title());
}
if (StringUtils.isNotBlank(infoConfig.version())) {
info.setVersion(infoConfig.version());
}
if (StringUtils.isNotBlank(infoConfig.contact().name())) {
Contact contact = info.getContact();
if (contact == null) {
contact = new Contact();
info.setContact(contact);
}
contact.setName(infoConfig.contact().name());
if (StringUtils.isNotBlank(infoConfig.contact().email())) {
contact.setEmail(infoConfig.contact().email());
}
if (StringUtils.isNotBlank(infoConfig.contact().url())) {
contact.setUrl(infoConfig.contact().url());
}
}
if (StringUtils.isNotBlank(infoConfig.license().name())) {
License license = info.getLicense();
if (license == null) {
license = new License();
info.setLicense(license);
}
license.setName(infoConfig.license().name());
if (StringUtils.isNotBlank(infoConfig.license().url())) {
license.setUrl(infoConfig.license().url());
}
}
info.getVendorExtensions().putAll(BaseReaderUtils.parseExtensions(infoConfig.extensions()));
}
}
