| /* |
| * 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 com.epam.datalab.billing.azure.rate; |
| |
| import com.epam.datalab.billing.azure.config.BillingConfigurationAzure; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.http.Header; |
| import org.apache.http.HttpHeaders; |
| import org.apache.http.HttpRequest; |
| import org.apache.http.HttpResponse; |
| import org.apache.http.ProtocolException; |
| import org.apache.http.client.methods.HttpGet; |
| import org.apache.http.client.methods.HttpUriRequest; |
| import org.apache.http.client.utils.URIBuilder; |
| import org.apache.http.impl.client.CloseableHttpClient; |
| import org.apache.http.impl.client.DefaultRedirectStrategy; |
| import org.apache.http.impl.client.HttpClients; |
| import org.apache.http.protocol.HttpContext; |
| import org.apache.http.util.EntityUtils; |
| |
| import java.io.IOException; |
| import java.net.URISyntaxException; |
| import java.util.Arrays; |
| import java.util.function.Predicate; |
| |
| @Slf4j |
| public class AzureRateCardClient { |
| private ObjectMapper objectMapper = new ObjectMapper(); |
| public static final String MAIN_RATE_KEY = "0"; |
| private BillingConfigurationAzure billingConfigurationAzure; |
| private String authToken; |
| |
| public AzureRateCardClient(BillingConfigurationAzure billingConfigurationAzure, String authToken) { |
| this.billingConfigurationAzure = billingConfigurationAzure; |
| this.authToken = authToken; |
| } |
| |
| public RateCardResponse getRateCard() throws IOException, URISyntaxException { |
| |
| try (CloseableHttpClient httpClient = HttpClients.custom() |
| .setRedirectStrategy(new CustomRedirectWithoutAuthorizationStrategy()) |
| .build()) { |
| final URIBuilder uriBuilder = new URIBuilder("https://management.azure.com/subscriptions/" + |
| billingConfigurationAzure.getSubscriptionId() + "/providers/Microsoft.Commerce/RateCard") |
| .addParameter("api-version", "2016-08-31-preview") |
| .addParameter("$filter", String.format("OfferDurableId eq '%s' and Currency eq '%s' and Locale " + |
| "eq '%s' and RegionInfo eq '%s'", billingConfigurationAzure.getOfferNumber(), |
| billingConfigurationAzure.getCurrency(), billingConfigurationAzure.getLocale(), |
| billingConfigurationAzure.getRegionInfo())); |
| |
| final HttpGet request = new HttpGet(uriBuilder.build()); |
| request.addHeader("Authorization", String.format("Bearer %s", authToken)); |
| request.addHeader(HttpHeaders.ACCEPT, "application/json"); |
| return objectMapper.readValue(EntityUtils.toString |
| (httpClient.execute(request).getEntity()), RateCardResponse.class); |
| } catch (IOException | URISyntaxException e) { |
| log.error("Cannot retrieve rate card due to ", e); |
| throw e; |
| } |
| } |
| |
| class CustomRedirectWithoutAuthorizationStrategy extends DefaultRedirectStrategy { |
| @Override |
| public HttpUriRequest getRedirect(HttpRequest request, HttpResponse response, HttpContext context) throws |
| ProtocolException { |
| if (HttpGet.METHOD_NAME.equals(request.getRequestLine().getMethod())) { |
| return httpGetWithoutAuthorization(request, response, context); |
| } else { |
| return super.getRedirect(request, response, context); |
| } |
| } |
| |
| private HttpUriRequest httpGetWithoutAuthorization(HttpRequest request, HttpResponse response, HttpContext |
| context) throws ProtocolException { |
| return new HttpGet(getLocationURI(request, response, context)) { |
| @Override |
| public void setHeaders(Header[] headers) { |
| super.setHeaders(filter(headers, h -> !h.getName().equals(HttpHeaders.AUTHORIZATION))); |
| } |
| |
| private Header[] filter(Header[] headers, Predicate<Header> predicate) { |
| return Arrays.stream(headers) |
| .filter(predicate) |
| .toArray(Header[]::new); |
| } |
| }; |
| } |
| } |
| |
| |
| } |