| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 |
| * |
| * http://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.apache.camel.swagger; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| |
| import io.swagger.jaxrs.config.BeanConfig; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.util.EndpointHelper; |
| import org.apache.camel.util.ObjectHelper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class RestSwaggerProcessor implements Processor { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(RestSwaggerProcessor.class); |
| private final BeanConfig swaggerConfig; |
| private final RestSwaggerSupport support; |
| private final String contextIdPattern; |
| private final boolean contextIdListing; |
| |
| @SuppressWarnings("unchecked") |
| public RestSwaggerProcessor(String contextIdPattern, boolean contextIdListing, Map<String, Object> parameters) { |
| this.contextIdPattern = contextIdPattern; |
| this.contextIdListing = contextIdListing; |
| this.support = new RestSwaggerSupport(); |
| this.swaggerConfig = new BeanConfig(); |
| |
| if (parameters == null) { |
| parameters = Collections.EMPTY_MAP; |
| } |
| support.initSwagger(swaggerConfig, parameters); |
| } |
| |
| @Override |
| public void process(Exchange exchange) throws Exception { |
| |
| String contextId = exchange.getContext().getName(); |
| String route = exchange.getIn().getHeader(Exchange.HTTP_PATH, String.class); |
| String accept = exchange.getIn().getHeader(Exchange.ACCEPT_CONTENT_TYPE, String.class); |
| |
| RestApiResponseAdapter adapter = new ExchangeRestApiResponseAdapter(exchange); |
| |
| // whether to use json or yaml |
| boolean json = false; |
| boolean yaml = false; |
| if (route != null && route.endsWith("/swagger.json")) { |
| json = true; |
| route = route.substring(0, route.length() - 13); |
| } else if (route != null && route.endsWith("/swagger.yaml")) { |
| yaml = true; |
| route = route.substring(0, route.length() - 13); |
| } |
| if (accept != null && !json && !yaml) { |
| json = accept.contains("json"); |
| yaml = accept.contains("yaml"); |
| } |
| if (!json && !yaml) { |
| // json is default |
| json = true; |
| } |
| |
| try { |
| // render list of camel contexts as root |
| if (contextIdListing && (ObjectHelper.isEmpty(route) || route.equals("/"))) { |
| support.renderCamelContexts(adapter, contextId, contextIdPattern, json, yaml); |
| } else { |
| String name; |
| if (ObjectHelper.isNotEmpty(route)) { |
| // first part is the camel context |
| if (route.startsWith("/")) { |
| route = route.substring(1); |
| } |
| // the remainder is the route part |
| name = route.split("/")[0]; |
| if (route.startsWith(contextId)) { |
| route = route.substring(name.length()); |
| } |
| } else { |
| // listing not enabled then get current camel context as the name |
| name = exchange.getContext().getName(); |
| } |
| |
| boolean match = true; |
| if (contextIdPattern != null) { |
| if ("#name#".equals(contextIdPattern)) { |
| match = name.equals(contextId); |
| } else { |
| match = EndpointHelper.matchPattern(name, contextIdPattern); |
| } |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("Match contextId: {} with pattern: {} -> {}", new Object[]{name, contextIdPattern, match}); |
| } |
| } |
| |
| if (!match) { |
| adapter.noContent(); |
| } else { |
| support.renderResourceListing(adapter, swaggerConfig, name, route, json, yaml, exchange.getContext().getClassResolver()); |
| } |
| } |
| } catch (Exception e) { |
| LOG.warn("Error rendering Swagger API due " + e.getMessage(), e); |
| } |
| } |
| |
| } |