| /* |
| * 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.apisix.plugin.runner.handler; |
| |
| import com.google.common.cache.Cache; |
| import io.github.api7.A6.PrepareConf.Req; |
| import io.github.api7.A6.TextEntry; |
| import lombok.RequiredArgsConstructor; |
| import org.apache.apisix.plugin.runner.A6Conf; |
| import org.apache.apisix.plugin.runner.A6ConfigRequest; |
| import org.apache.apisix.plugin.runner.A6ConfigResponse; |
| import org.apache.apisix.plugin.runner.A6Request; |
| import org.apache.apisix.plugin.runner.A6Response; |
| import org.apache.apisix.plugin.runner.filter.PluginFilter; |
| import org.apache.apisix.plugin.runner.filter.PluginFilterChain; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| /** |
| * Handle APISIX configuration request. |
| */ |
| @RequiredArgsConstructor |
| public class A6ConfigHandler implements Handler { |
| private final Logger logger = LoggerFactory.getLogger(A6ConfigHandler.class); |
| |
| private final Cache<Long, A6Conf> cache; |
| private final Map<String, PluginFilter> filters; |
| |
| @Override |
| public void handle(A6Request request, A6Response response) { |
| Req req = ((A6ConfigRequest) request).getReq(); |
| long token = ((A6ConfigResponse) response).getConfToken(); |
| PluginFilterChain chain = createFilterChain(req); |
| |
| /* |
| * to reset vtable_start and vtable_size of req, |
| * so that req can be reused after being got from the cache. |
| * {@link org.apache.apisix.plugin.runner.handler.A6HttpCallHandler#handle cache.getIfPresent()} |
| * @see <a href="Issues63"> https://github.com/apache/apisix-java-plugin-runner/issues/63</a> |
| * */ |
| Map<String, String> config = new HashMap<>(); |
| for (int i = 0; i < req.confLength(); i++) { |
| TextEntry conf = req.conf(i); |
| config.put(conf.name(), conf.value()); |
| } |
| A6Conf a6Conf = new A6Conf(config, chain); |
| cache.put(token, a6Conf); |
| } |
| |
| private PluginFilterChain createFilterChain(Req req) { |
| List<PluginFilter> chainFilters = new ArrayList<>(); |
| for (int i = 0; i < req.confLength(); i++) { |
| TextEntry conf = req.conf(i); |
| PluginFilter filter = filters.get(conf.name()); |
| if (Objects.isNull(filter)) { |
| logger.warn("receive undefined filter: {}, skip it", conf.name()); |
| continue; |
| } |
| if (chainFilters.contains(filter)) { |
| logger.warn("skip the same filter: {}", conf.name()); |
| continue; |
| } |
| chainFilters.add(filter); |
| } |
| return new PluginFilterChain(chainFilters); |
| } |
| |
| } |