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io.swagger.jaxrs.listing.BaseApiListingResource Maven / Gradle / Ivy
package io.swagger.jaxrs.listing;
import io.swagger.config.FilterFactory;
import io.swagger.config.Scanner;
import io.swagger.config.SwaggerConfig;
import io.swagger.core.filter.SpecFilter;
import io.swagger.core.filter.SwaggerSpecFilter;
import io.swagger.jaxrs.Reader;
import io.swagger.jaxrs.config.JaxrsScanner;
import io.swagger.jaxrs.config.ReaderConfigUtils;
import io.swagger.jaxrs.config.SwaggerContextService;
import io.swagger.models.Swagger;
import io.swagger.util.Yaml;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.ws.rs.core.*;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
/**
* Created by rbolles on 2/15/16.
*/
public abstract class BaseApiListingResource {
private static volatile boolean initialized = false;
private static volatile ConcurrentMap initializedScanner = new ConcurrentHashMap();
private static volatile ConcurrentMap initializedConfig = new ConcurrentHashMap();
private static Logger LOGGER = LoggerFactory.getLogger(BaseApiListingResource.class);
private static synchronized Swagger scan(Application app, ServletContext context, ServletConfig sc) {
Swagger swagger = null;
SwaggerContextService ctxService = new SwaggerContextService().withServletConfig(sc);
Scanner scanner = ctxService.getScanner();
if (scanner != null) {
SwaggerSerializers.setPrettyPrint(scanner.getPrettyPrint());
swagger = new SwaggerContextService().withServletConfig(sc).getSwagger();
Set> classes;
if (scanner instanceof JaxrsScanner) {
JaxrsScanner jaxrsScanner = (JaxrsScanner) scanner;
classes = jaxrsScanner.classesFromContext(app, sc);
} else {
classes = scanner.classes();
}
if (classes != null) {
Reader reader = new Reader(swagger, ReaderConfigUtils.getReaderConfig(context));
swagger = reader.read(classes);
if (scanner instanceof SwaggerConfig) {
swagger = ((SwaggerConfig) scanner).configure(swagger);
} else {
SwaggerConfig swaggerConfig = ctxService.getConfig();
if (swaggerConfig != null) {
LOGGER.debug("configuring swagger with " + swaggerConfig);
swaggerConfig.configure(swagger);
} else {
LOGGER.debug("no configurator");
}
}
new SwaggerContextService().withServletConfig(sc).updateSwagger(swagger);
}
}
if (SwaggerContextService.isScannerIdInitParamDefined(sc)) {
initializedScanner.put(sc.getServletName() + "_" + SwaggerContextService.getScannerIdFromInitParam(sc), true);
} else if (SwaggerContextService.isConfigIdInitParamDefined(sc)) {
initializedConfig.put(sc.getServletName() + "_" + SwaggerContextService.getConfigIdFromInitParam(sc), true);
} else {
initialized = true;
}
return swagger;
}
private Swagger process(
Application app,
ServletContext servletContext,
ServletConfig sc,
HttpHeaders headers,
UriInfo uriInfo) {
Swagger swagger = new SwaggerContextService().withServletConfig(sc).getSwagger();
synchronized (ApiListingResource.class) {
if (SwaggerContextService.isScannerIdInitParamDefined(sc)) {
if (!initializedScanner.containsKey(sc.getServletName() + "_" + SwaggerContextService.getScannerIdFromInitParam(sc))) {
swagger = scan(app, servletContext, sc);
}
} else {
if (SwaggerContextService.isConfigIdInitParamDefined(sc)) {
if (!initializedConfig.containsKey(sc.getServletName() + "_" + SwaggerContextService.getConfigIdFromInitParam(sc))) {
swagger = scan(app, servletContext, sc);
}
} else {
if (!initialized) {
swagger = scan(app, servletContext, sc);
}
}
}
}
if (swagger != null) {
SwaggerSpecFilter filterImpl = FilterFactory.getFilter();
if (filterImpl != null) {
SpecFilter f = new SpecFilter();
swagger = f.filter(swagger, filterImpl, getQueryParams(uriInfo.getQueryParameters()), getCookies(headers),
getHeaders(headers));
}
}
return swagger;
}
protected Response getListingYamlResponse(
Application app,
ServletContext servletContext,
ServletConfig servletConfig,
HttpHeaders headers,
UriInfo uriInfo) {
Swagger swagger = process(app, servletContext, servletConfig, headers, uriInfo);
try {
if (swagger != null) {
String yaml = Yaml.mapper().writeValueAsString(swagger);
StringBuilder b = new StringBuilder();
String[] parts = yaml.split("\n");
for (String part : parts) {
b.append(part);
b.append("\n");
}
return Response.ok().entity(b.toString()).type("application/yaml").build();
}
} catch (Exception e) {
e.printStackTrace();
}
return Response.status(404).build();
}
protected Response getListingJsonResponse(
Application app,
ServletContext servletContext,
ServletConfig servletConfig,
HttpHeaders headers,
UriInfo uriInfo) {
Swagger swagger = process(app, servletContext, servletConfig, headers, uriInfo);
if (swagger != null) {
return Response.ok().entity(swagger).build();
} else {
return Response.status(404).build();
}
}
private static Map> getQueryParams(MultivaluedMap params) {
Map> output = new HashMap>();
if (params != null) {
for (String key : params.keySet()) {
List values = params.get(key);
output.put(key, values);
}
}
return output;
}
private static Map getCookies(HttpHeaders headers) {
Map output = new HashMap();
if (headers != null) {
for (String key : headers.getCookies().keySet()) {
Cookie cookie = headers.getCookies().get(key);
output.put(key, cookie.getValue());
}
}
return output;
}
private static Map> getHeaders(HttpHeaders headers) {
Map> output = new HashMap>();
if (headers != null) {
for (String key : headers.getRequestHeaders().keySet()) {
List values = headers.getRequestHeaders().get(key);
output.put(key, values);
}
}
return output;
}
}
