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.HashMap;
  27 import java.util.List;
  28 import java.util.Properties;
  29 import org.apache.commons.lang3.StringUtils;
  30 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
  31 import org.onap.policy.common.endpoints.http.client.internal.JerseyClient;
  32 import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
  33 import org.onap.policy.common.endpoints.utils.PropertyUtils;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 /**
  38  * HTTP client factory implementation indexed by name.
  39  */
  40 class IndexedHttpClientFactory implements HttpClientFactory {
  41
  42     /**
  43      * Logger.
  44      */
  45     private static Logger logger = LoggerFactory.getLogger(IndexedHttpClientFactory.class);
  46
  47     protected HashMap<String, HttpClient> clients = new HashMap<>();
  48
  49     @Override
  50     public synchronized HttpClient build(BusTopicParams busTopicParams)
  51             throws KeyManagementException, NoSuchAlgorithmException, ClassNotFoundException {
  52         if (clients.containsKey(busTopicParams.getClientName())) {
  53             return clients.get(busTopicParams.getClientName());
  54         }
  55
  56         JerseyClient client =
  57                 new JerseyClient(busTopicParams);
  58
  59         if (busTopicParams.isManaged()) {
  60             clients.put(busTopicParams.getClientName(), client);
  61         }
  62
  63         return client;
  64     }
  65
  66     @Override
  67     public synchronized List<HttpClient> build(Properties properties)
  68             throws KeyManagementException, NoSuchAlgorithmException {
  69         ArrayList<HttpClient> clientList = new ArrayList<>();
  70
  71         String clientNames = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES);
  72         if (StringUtils.isBlank(clientNames)) {
  73             return clientList;
  74         }
  75
  76         for (String clientName : clientNames.split("\\s*,\\s*")) {
  77             addClient(clientList, clientName, properties);
  78         }
  79
  80         return clientList;
  81     }
  82
  83     private void addClient(ArrayList<HttpClient> clientList, String clientName, Properties properties) {
  84         String clientPrefix = PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + clientName;
  85
  86         PropertyUtils props = new PropertyUtils(properties, clientPrefix,
  87             (name, value, ex) ->
  88                 logger.warn("{}: {} {} is in invalid format for http client {} ", this, name, value, clientName));
  89
  90         int port = props.getInteger(PolicyEndPointProperties.PROPERTY_HTTP_PORT_SUFFIX, -1);
  91         if (port < 0) {
  92             logger.warn("No HTTP port for client in {}", clientName);
  93             return;
  94         }
  95
  96         boolean https = props.getBoolean(PolicyEndPointProperties.PROPERTY_HTTP_HTTPS_SUFFIX, false);
  97
  98         try {
  99             HttpClient client = this.build(BusTopicParams.builder()
 100                 .clientName(clientName)
 101                 .useHttps(https)
 102                 .allowSelfSignedCerts(https)
 103                 .hostname(props.getString(PolicyEndPointProperties.PROPERTY_HTTP_HOST_SUFFIX, null))
 104                 .port(port)
 105                 .basePath(props.getString(PolicyEndPointProperties.PROPERTY_HTTP_URL_SUFFIX, null))
 106                 .userName(props.getString(PolicyEndPointProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX,
 107                                 null))
 108                 .password(props.getString(PolicyEndPointProperties.PROPERTY_HTTP_AUTH_PASSWORD_SUFFIX,
 109                                 null))
 110                 .managed(props.getBoolean(PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX, true))
 111                 .serializationProvider(props.getString(
 112                                 PolicyEndPointProperties.PROPERTY_HTTP_SERIALIZATION_PROVIDER, null))
 113                 .build());
 114             clientList.add(client);
 115         } catch (Exception e) {
 116             logger.error("http-client-factory: cannot build client {}", clientName, e);
 117         }
 118     }
 119
 120     @Override
 121     public synchronized HttpClient get(String name) {
 122         if (clients.containsKey(name)) {
 123             return clients.get(name);
 124         }
 125
 126         throw new IllegalArgumentException("Http Client " + name + " not found");
 127     }
 128
 129     @Override
 130     public synchronized List<HttpClient> inventory() {
 131         return new ArrayList<>(this.clients.values());
 132     }
 133
 134     @Override
 135     public synchronized void destroy(String name) {
 136         if (!clients.containsKey(name)) {
 137             return;
 138         }
 139
 140         HttpClient client = clients.remove(name);
 141         try {
 142             client.shutdown();
 143         } catch (IllegalStateException e) {
 144             logger.error("http-client-factory: cannot shutdown client {}", client, e);
 145         }
 146     }
 147
 148     @Override
 149     public void destroy() {
 150         List<HttpClient> clientsInventory = this.inventory();
 151         for (HttpClient client : clientsInventory) {
 152             client.shutdown();
 153         }
 154
 155         synchronized (this) {
 156             this.clients.clear();
 157         }
 158     }
 159
 160 }