gerrit.onap Code Review - policy/common.git/blob

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * ONAP
   4  * ================================================================================
   5  * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.policy.common.endpoints.http.client;
  22
  23 import java.security.KeyManagementException;
  24 import java.security.NoSuchAlgorithmException;
  25 import java.util.ArrayList;
  26 import java.util.Arrays;
  27 import java.util.HashMap;
  28 import java.util.List;
  29 import java.util.Properties;
  30
  31 import org.apache.commons.lang3.StringUtils;
  32 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
  33 import org.onap.policy.common.endpoints.http.client.internal.JerseyClient;
  34 import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 /**
  39  * HTTP client factory implementation indexed by name.
  40  */
  41 class IndexedHttpClientFactory implements HttpClientFactory {
  42
  43     /**
  44      * Logger.
  45      */
  46     private static Logger logger = LoggerFactory.getLogger(IndexedHttpClientFactory.class);
  47
  48     protected HashMap<String, HttpClient> clients = new HashMap<>();
  49
  50     @Override
  51     public synchronized HttpClient build(BusTopicParams busTopicParams)
  52             throws KeyManagementException, NoSuchAlgorithmException {
  53         if (clients.containsKey(busTopicParams.getClientName())) {
  54             return clients.get(busTopicParams.getClientName());
  55         }
  56
  57         JerseyClient client =
  58                 new JerseyClient(busTopicParams);
  59
  60         if (busTopicParams.isManaged()) {
  61             clients.put(busTopicParams.getClientName(), client);
  62         }
  63
  64         return client;
  65     }
  66
  67     @Override
  68     public synchronized List<HttpClient> build(Properties properties)
  69             throws KeyManagementException, NoSuchAlgorithmException {
  70         ArrayList<HttpClient> clientList = new ArrayList<>();
  71
  72         String clientNames = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES);
  73         if (clientNames == null || clientNames.isEmpty()) {
  74             return clientList;
  75         }
  76
  77         List<String> clientNameList = new ArrayList<>(Arrays.asList(clientNames.split("\\s*,\\s*")));
  78
  79         for (String clientName : clientNameList) {
  80             String httpsString = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "."
  81                     + clientName + PolicyEndPointProperties.PROPERTY_HTTP_HTTPS_SUFFIX);
  82             boolean https = false;
  83             if (StringUtils.isNotBlank(httpsString)) {
  84                 https = Boolean.parseBoolean(httpsString);
  85             }
  86
  87             String hostName = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "."
  88                     + clientName + PolicyEndPointProperties.PROPERTY_HTTP_HOST_SUFFIX);
  89
  90             String servicePortString = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES
  91                     + "." + clientName + PolicyEndPointProperties.PROPERTY_HTTP_PORT_SUFFIX);
  92             int port;
  93             try {
  94                 if (servicePortString == null || servicePortString.isEmpty()) {
  95                     continue;
  96                 }
  97                 port = Integer.parseInt(servicePortString);
  98             } catch (NumberFormatException nfe) {
  99                 logger.error("http-client-factory: cannot parse port {}", servicePortString, nfe);
 100                 continue;
 101             }
 102
 103             String baseUrl = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "."
 104                     + clientName + PolicyEndPointProperties.PROPERTY_HTTP_URL_SUFFIX);
 105
 106             String userName = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "."
 107                     + clientName + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX);
 108
 109             String password = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "."
 110                     + clientName + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_PASSWORD_SUFFIX);
 111
 112             String managedString = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "."
 113                     + clientName + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX);
 114             boolean managed = true;
 115             if (managedString != null && !managedString.isEmpty()) {
 116                 managed = Boolean.parseBoolean(managedString);
 117             }
 118
 119             try {
 120                 HttpClient client =
 121                         this.build(BusTopicParams.builder()
 122                                 .clientName(clientName)
 123                                 .useHttps(https)
 124                                 .allowSelfSignedCerts(https)
 125                                 .hostname(hostName)
 126                                 .port(port)
 127                                 .basePath(baseUrl)
 128                                 .userName(userName)
 129                                 .password(password)
 130                                 .managed(managed)
 131                                 .build());
 132                 clientList.add(client);
 133             } catch (Exception e) {
 134                 logger.error("http-client-factory: cannot build client {}", clientName, e);
 135             }
 136         }
 137
 138         return clientList;
 139     }
 140
 141     @Override
 142     public synchronized HttpClient get(String name) {
 143         if (clients.containsKey(name)) {
 144             return clients.get(name);
 145         }
 146
 147         throw new IllegalArgumentException("Http Client " + name + " not found");
 148     }
 149
 150     @Override
 151     public synchronized List<HttpClient> inventory() {
 152         return new ArrayList<>(this.clients.values());
 153     }
 154
 155     @Override
 156     public synchronized void destroy(String name) {
 157         if (!clients.containsKey(name)) {
 158             return;
 159         }
 160
 161         HttpClient client = clients.remove(name);
 162         try {
 163             client.shutdown();
 164         } catch (IllegalStateException e) {
 165             logger.error("http-client-factory: cannot shutdown client {}", client, e);
 166         }
 167     }
 168
 169     @Override
 170     public void destroy() {
 171         List<HttpClient> clientsInventory = this.inventory();
 172         for (HttpClient client : clientsInventory) {
 173             client.shutdown();
 174         }
 175
 176         synchronized (this) {
 177             this.clients.clear();
 178         }
 179     }
 180
 181 }