gerrit.onap Code Review - dcaegen2/collectors/datafile.git/blob

   1 /*
   2  * ============LICENSE_START======================================================================
   3  * Copyright (C) 2018 NOKIA Intellectual Property, 2018-2019 Nordix Foundation. All rights reserved.
   4  * ===============================================================================================
   5  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   6  * in compliance with the License. You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software distributed under the License
  11  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  12  * or implied. See the License for the specific language governing permissions and limitations under
  13  * the License.
  14  * ============LICENSE_END========================================================================
  15  */
  16
  17 package org.onap.dcaegen2.collectors.datafile.service.producer;
  18
  19 import java.nio.charset.StandardCharsets;
  20 import java.security.KeyManagementException;
  21 import java.security.KeyStoreException;
  22 import java.security.NoSuchAlgorithmException;
  23 import java.util.Map;
  24 import java.util.concurrent.Future;
  25
  26 import javax.net.ssl.SSLContext;
  27
  28 import org.apache.commons.codec.binary.Base64;
  29 import org.apache.http.HttpResponse;
  30 import org.apache.http.client.config.RequestConfig;
  31 import org.apache.http.client.methods.HttpUriRequest;
  32 import org.apache.http.conn.ssl.NoopHostnameVerifier;
  33 import org.apache.http.impl.nio.client.CloseableHttpAsyncClient;
  34 import org.apache.http.ssl.SSLContextBuilder;
  35 import org.onap.dcaegen2.collectors.datafile.exceptions.DatafileTaskException;
  36 import org.onap.dcaegen2.collectors.datafile.http.HttpAsyncClientBuilderWrapper;
  37 import org.onap.dcaegen2.collectors.datafile.http.IHttpAsyncClientBuilder;
  38 import org.onap.dcaegen2.collectors.datafile.model.logging.MdcVariables;
  39 import org.onap.dcaegen2.collectors.datafile.web.PublishRedirectStrategy;
  40 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.config.DmaapPublisherConfiguration;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43 import org.slf4j.Marker;
  44 import org.slf4j.MarkerFactory;
  45 import org.springframework.web.util.DefaultUriBuilderFactory;
  46 import org.springframework.web.util.UriBuilder;
  47
  48 /**
  49  * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 7/4/18
  50  * @author <a href="mailto:henrik.b.andersson@est.tech">Henrik Andersson</a>
  51  */
  52 public class DmaapProducerReactiveHttpClient {
  53
  54     private static final int NO_REQUEST_TIMEOUT = -1;
  55     private static final Marker INVOKE = MarkerFactory.getMarker("INVOKE");
  56     private static final Marker INVOKE_RETURN = MarkerFactory.getMarker("INVOKE_RETURN");
  57
  58     private final Logger logger = LoggerFactory.getLogger(this.getClass());
  59
  60     private final DmaapPublisherConfiguration configuration;
  61
  62     /**
  63      * Constructor DmaapProducerReactiveHttpClient.
  64      *
  65      * @param dmaapPublisherConfiguration - DMaaP producer configuration object
  66      */
  67     public DmaapProducerReactiveHttpClient(DmaapPublisherConfiguration dmaapPublisherConfiguration) {
  68         this.configuration = dmaapPublisherConfiguration;
  69     }
  70
  71     public HttpResponse getDmaapProducerResponseWithRedirect(HttpUriRequest request, Map<String, String> contextMap)
  72             throws DatafileTaskException {
  73         try (CloseableHttpAsyncClient webClient = createWebClient(true, NO_REQUEST_TIMEOUT)) {
  74             MdcVariables.setMdcContextMap(contextMap);
  75             webClient.start();
  76
  77             logger.trace(INVOKE, "Starting to produce to DR {}", request);
  78             Future<HttpResponse> future = webClient.execute(request, null);
  79             HttpResponse response = future.get();
  80             logger.trace(INVOKE_RETURN, "Response from DR {}", response);
  81             return response;
  82         } catch (Exception e) {
  83             throw new DatafileTaskException("Unable to create web client.", e);
  84         }
  85     }
  86
  87     public HttpResponse getDmaapProducerResponseWithCustomTimeout(HttpUriRequest request, int requestTimeout,
  88             Map<String, String> contextMap) throws DatafileTaskException {
  89         try (CloseableHttpAsyncClient webClient = createWebClient(false, requestTimeout)) {
  90             MdcVariables.setMdcContextMap(contextMap);
  91             webClient.start();
  92
  93             logger.trace(INVOKE, "Starting to produce to DR {}", request);
  94             Future<HttpResponse> future = webClient.execute(request, null);
  95             HttpResponse response = future.get();
  96             logger.trace(INVOKE_RETURN, "Response from DR {}", response);
  97             return response;
  98         } catch (Exception e) {
  99             throw new DatafileTaskException("Unable to create web client.", e);
 100         }
 101     }
 102
 103     public void addUserCredentialsToHead(HttpUriRequest request) {
 104         String plainCreds = configuration.dmaapUserName() + ":" + configuration.dmaapUserPassword();
 105         byte[] plainCredsBytes = plainCreds.getBytes(StandardCharsets.ISO_8859_1);
 106         byte[] base64CredsBytes = Base64.encodeBase64(plainCredsBytes);
 107         String base64Creds = new String(base64CredsBytes);
 108         logger.trace("base64Creds...: {}", base64Creds);
 109         request.addHeader("Authorization", "Basic " + base64Creds);
 110     }
 111
 112     public UriBuilder getBaseUri() {
 113         return new DefaultUriBuilderFactory().builder() //
 114                 .scheme(configuration.dmaapProtocol()) //
 115                 .host(configuration.dmaapHostName()) //
 116                 .port(configuration.dmaapPortNumber());
 117     }
 118
 119     private CloseableHttpAsyncClient createWebClient(boolean expectRedirect, int requestTimeout)
 120             throws KeyManagementException, NoSuchAlgorithmException, KeyStoreException {
 121         SSLContext sslContext =
 122                 new SSLContextBuilder().loadTrustMaterial(null, (certificate, authType) -> true).build();
 123
 124         IHttpAsyncClientBuilder clientBuilder = getHttpClientBuilder();
 125         clientBuilder.setSSLContext(sslContext) //
 126                 .setSSLHostnameVerifier(new NoopHostnameVerifier());
 127
 128         if (expectRedirect) {
 129             clientBuilder.setRedirectStrategy(PublishRedirectStrategy.INSTANCE);
 130         }
 131
 132         if (requestTimeout > NO_REQUEST_TIMEOUT) {
 133             RequestConfig requestConfig = RequestConfig.custom() //
 134                     .setSocketTimeout(requestTimeout) //
 135                     .setConnectTimeout(requestTimeout) //
 136                     .setConnectionRequestTimeout(requestTimeout) //
 137                     .build();
 138
 139             clientBuilder.setDefaultRequestConfig(requestConfig);
 140         }
 141
 142         return clientBuilder.build();
 143     }
 144
 145     IHttpAsyncClientBuilder getHttpClientBuilder() {
 146         return new HttpAsyncClientBuilderWrapper();
 147     }
 148 }