| /* |
| * 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.servicecomb.config.center.client; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.http.HttpStatus; |
| import org.apache.servicecomb.config.center.client.exception.OperationException; |
| import org.apache.servicecomb.config.center.client.model.QueryConfigurationsRequest; |
| import org.apache.servicecomb.config.center.client.model.QueryConfigurationsResponse; |
| import org.apache.servicecomb.http.client.common.HttpRequest; |
| import org.apache.servicecomb.http.client.common.HttpResponse; |
| import org.apache.servicecomb.http.client.common.HttpTransport; |
| import org.apache.servicecomb.http.client.common.HttpUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.fasterxml.jackson.core.type.TypeReference; |
| |
| public class ConfigCenterClient implements ConfigCenterOperation { |
| private static final Logger LOGGER = LoggerFactory.getLogger(ConfigCenterClient.class); |
| |
| public static final String DEFAULT_APP_SEPARATOR = "@"; |
| |
| public static final String DEFAULT_SERVICE_SEPARATOR = "#"; |
| |
| public static final String REVISION = "revision"; |
| |
| public static final String APPLICATION_CONFIG = "application"; |
| |
| public static final String DARK_LAUNCH = "darklaunch@"; |
| |
| private HttpTransport httpTransport; |
| |
| private AddressManager addressManager; |
| |
| public ConfigCenterClient(AddressManager addressManager, HttpTransport httpTransport) { |
| this.addressManager = addressManager; |
| this.httpTransport = httpTransport; |
| } |
| |
| @Override |
| public QueryConfigurationsResponse queryConfigurations(QueryConfigurationsRequest request) { |
| String dimensionsInfo = buildDimensionsInfo(request, true); |
| QueryConfigurationsResponse queryConfigurationsResponse = new QueryConfigurationsResponse(); |
| |
| Map<String, Object> configurations = new HashMap<>(); |
| |
| String uri = null; |
| String address = addressManager.address(); |
| try { |
| uri = address + "/configuration/items?dimensionsInfo=" |
| + HttpUtils.encodeURLParam(dimensionsInfo) + "&revision=" + request.getRevision(); |
| |
| Map<String, String> headers = new HashMap<>(); |
| headers.put("x-environment", request.getEnvironment()); |
| HttpRequest httpRequest = new HttpRequest(uri, headers, null, |
| HttpRequest.GET); |
| |
| HttpResponse httpResponse = httpTransport.doRequest(httpRequest); |
| if (httpResponse.getStatusCode() == HttpStatus.SC_OK) { |
| Map<String, Map<String, Object>> allConfigMap = HttpUtils.deserialize( |
| httpResponse.getContent(), |
| new TypeReference<Map<String, Map<String, Object>>>() { |
| }); |
| |
| if (allConfigMap.get(REVISION) != null) { |
| queryConfigurationsResponse.setRevision((String) allConfigMap.get(REVISION).get("version")); |
| } |
| |
| if (allConfigMap.get(APPLICATION_CONFIG) != null) { |
| configurations.putAll(allConfigMap.get(APPLICATION_CONFIG)); |
| } |
| |
| if (allConfigMap.get(buildDimensionsInfo(request, false)) != null) { |
| configurations.putAll(allConfigMap.get(buildDimensionsInfo(request, false))); |
| } |
| |
| if (allConfigMap.get(buildDarkLaunchDimensionsInfo(request)) != null) { |
| configurations.putAll(allConfigMap.get(buildDarkLaunchDimensionsInfo(request))); |
| } |
| |
| if (allConfigMap.get(dimensionsInfo) != null) { |
| configurations.putAll(allConfigMap.get(dimensionsInfo)); |
| } |
| queryConfigurationsResponse.setConfigurations(configurations); |
| queryConfigurationsResponse.setChanged(true); |
| addressManager.recordSuccessState(address); |
| return queryConfigurationsResponse; |
| } else if (httpResponse.getStatusCode() == HttpStatus.SC_NOT_MODIFIED) { |
| queryConfigurationsResponse.setChanged(false); |
| addressManager.recordSuccessState(address); |
| return queryConfigurationsResponse; |
| } else if (httpResponse.getStatusCode() == HttpStatus.SC_BAD_REQUEST) { |
| throw new OperationException("Bad request for query configurations."); |
| } else { |
| addressManager.recordFailState(address); |
| throw new OperationException( |
| "read response failed. status:" |
| + httpResponse.getStatusCode() |
| + "; message:" |
| + httpResponse.getMessage() |
| + "; content:" |
| + httpResponse.getContent()); |
| } |
| } catch (IOException e) { |
| addressManager.recordFailState(address); |
| LOGGER.error("query configuration from {} failed, message={}", uri, e.getMessage()); |
| throw new OperationException("", e); |
| } |
| } |
| |
| private String buildDimensionsInfo(QueryConfigurationsRequest request, boolean withVersion) { |
| String result = |
| request.getServiceName() + DEFAULT_APP_SEPARATOR |
| + request.getApplication(); |
| if (withVersion && !StringUtils.isEmpty(request.getVersion())) { |
| result = result + DEFAULT_SERVICE_SEPARATOR + request |
| .getVersion(); |
| } |
| return result; |
| } |
| |
| private String buildDarkLaunchDimensionsInfo(QueryConfigurationsRequest request) { |
| return DARK_LAUNCH + request.getApplication(); |
| } |
| } |