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.event.comm.bus;
  22
  23 import java.util.ArrayList;
  24 import java.util.Arrays;
  25 import java.util.HashMap;
  26 import java.util.List;
  27 import java.util.Properties;
  28
  29 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
  30 import org.onap.policy.common.endpoints.event.comm.bus.internal.InlineUebTopicSink;
  31 import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 /**
  36  * Factory of UEB Reader Topics indexed by topic name.
  37  */
  38 class IndexedUebTopicSinkFactory implements UebTopicSinkFactory {
  39     private static final String MISSING_TOPIC = "A topic must be provided";
  40
  41     /**
  42      * Logger.
  43      */
  44     private static Logger logger = LoggerFactory.getLogger(IndexedUebTopicSinkFactory.class);
  45
  46     /**
  47      * UEB Topic Name Index.
  48      */
  49     protected HashMap<String, UebTopicSink> uebTopicSinks = new HashMap<>();
  50
  51     @Override
  52     public UebTopicSink build(BusTopicParams busTopicParams) {
  53
  54         if (busTopicParams.getServers() == null || busTopicParams.getServers().isEmpty()) {
  55             throw new IllegalArgumentException("UEB Server(s) must be provided");
  56         }
  57
  58         if (busTopicParams.getTopic() == null || busTopicParams.getTopic().isEmpty()) {
  59             throw new IllegalArgumentException(MISSING_TOPIC);
  60         }
  61
  62         synchronized (this) {
  63             if (uebTopicSinks.containsKey(busTopicParams.getTopic())) {
  64                 return uebTopicSinks.get(busTopicParams.getTopic());
  65             }
  66
  67             UebTopicSink uebTopicWriter = makeSink(busTopicParams);
  68
  69             if (busTopicParams.isManaged()) {
  70                 uebTopicSinks.put(busTopicParams.getTopic(), uebTopicWriter);
  71             }
  72
  73             return uebTopicWriter;
  74         }
  75     }
  76
  77
  78     @Override
  79     public UebTopicSink build(List<String> servers, String topic) {
  80         return this.build(BusTopicParams.builder()
  81                 .servers(servers)
  82                 .topic(topic)
  83                 .managed(true)
  84                 .useHttps(false)
  85                 .allowSelfSignedCerts(false)
  86                 .build());
  87     }
  88
  89
  90     @Override
  91     public List<UebTopicSink> build(Properties properties) {
  92
  93         String writeTopics = properties.getProperty(PolicyEndPointProperties.PROPERTY_UEB_SINK_TOPICS);
  94         if (writeTopics == null || writeTopics.isEmpty()) {
  95             logger.info("{}: no topic for UEB Sink", this);
  96             return new ArrayList<>();
  97         }
  98
  99         List<String> writeTopicList = new ArrayList<>(Arrays.asList(writeTopics.split("\\s*,\\s*")));
 100         List<UebTopicSink> newUebTopicSinks = new ArrayList<>();
 101         synchronized (this) {
 102             for (String topic : writeTopicList) {
 103                 if (this.uebTopicSinks.containsKey(topic)) {
 104                     newUebTopicSinks.add(this.uebTopicSinks.get(topic));
 105                     continue;
 106                 }
 107
 108                 String servers = properties.getProperty(PolicyEndPointProperties.PROPERTY_UEB_SINK_TOPICS + "." + topic
 109                         + PolicyEndPointProperties.PROPERTY_TOPIC_SERVERS_SUFFIX);
 110                 if (servers == null || servers.isEmpty()) {
 111                     logger.error("{}: no UEB servers configured for sink {}", this, topic);
 112                     continue;
 113                 }
 114
 115                 final List<String> serverList = new ArrayList<>(Arrays.asList(servers.split("\\s*,\\s*")));
 116
 117                 final String effectiveTopic = properties.getProperty(PolicyEndPointProperties.PROPERTY_UEB_SINK_TOPICS
 118                                 + "." + topic + PolicyEndPointProperties.PROPERTY_TOPIC_EFFECTIVE_TOPIC_SUFFIX, topic);
 119                 final String apiKey = properties.getProperty(PolicyEndPointProperties.PROPERTY_UEB_SINK_TOPICS
 120                                 + "." + topic + PolicyEndPointProperties.PROPERTY_TOPIC_API_KEY_SUFFIX);
 121                 final String apiSecret = properties.getProperty(PolicyEndPointProperties.PROPERTY_UEB_SINK_TOPICS
 122                                 + "." + topic + PolicyEndPointProperties.PROPERTY_TOPIC_API_SECRET_SUFFIX);
 123                 final String partitionKey = properties.getProperty(PolicyEndPointProperties.PROPERTY_UEB_SINK_TOPICS
 124                                 + "." + topic + PolicyEndPointProperties.PROPERTY_TOPIC_SINK_PARTITION_KEY_SUFFIX);
 125
 126                 String managedString = properties.getProperty(PolicyEndPointProperties.PROPERTY_UEB_SINK_TOPICS + "."
 127                         + topic + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX);
 128                 boolean managed = true;
 129                 if (managedString != null && !managedString.isEmpty()) {
 130                     managed = Boolean.parseBoolean(managedString);
 131                 }
 132
 133                 String useHttpsString = properties.getProperty(PolicyEndPointProperties.PROPERTY_UEB_SINK_TOPICS + "."
 134                         + topic + PolicyEndPointProperties.PROPERTY_HTTP_HTTPS_SUFFIX);
 135
 136                 // default is to use HTTP if no https property exists
 137                 boolean useHttps = false;
 138                 if (useHttpsString != null && !useHttpsString.isEmpty()) {
 139                     useHttps = Boolean.parseBoolean(useHttpsString);
 140                 }
 141
 142
 143                 String allowSelfSignedCertsString =
 144                         properties.getProperty(PolicyEndPointProperties.PROPERTY_UEB_SINK_TOPICS + "." + topic
 145                                 + PolicyEndPointProperties.PROPERTY_ALLOW_SELF_SIGNED_CERTIFICATES_SUFFIX);
 146
 147                 // default is to disallow self-signed certs
 148                 boolean allowSelfSignedCerts = false;
 149                 if (allowSelfSignedCertsString != null && !allowSelfSignedCertsString.isEmpty()) {
 150                     allowSelfSignedCerts = Boolean.parseBoolean(allowSelfSignedCertsString);
 151                 }
 152
 153                 UebTopicSink uebTopicWriter = this.build(BusTopicParams.builder()
 154                         .servers(serverList)
 155                         .topic(topic)
 156                         .effectiveTopic(effectiveTopic)
 157                         .apiKey(apiKey)
 158                         .apiSecret(apiSecret)
 159                         .partitionId(partitionKey)
 160                         .managed(managed)
 161                         .useHttps(useHttps)
 162                         .allowSelfSignedCerts(allowSelfSignedCerts)
 163                         .build());
 164                 newUebTopicSinks.add(uebTopicWriter);
 165             }
 166             return newUebTopicSinks;
 167         }
 168     }
 169
 170     @Override
 171     public void destroy(String topic) {
 172
 173         if (topic == null || topic.isEmpty()) {
 174             throw new IllegalArgumentException(MISSING_TOPIC);
 175         }
 176
 177         UebTopicSink uebTopicWriter;
 178         synchronized (this) {
 179             if (!uebTopicSinks.containsKey(topic)) {
 180                 return;
 181             }
 182
 183             uebTopicWriter = uebTopicSinks.remove(topic);
 184         }
 185
 186         uebTopicWriter.shutdown();
 187     }
 188
 189     @Override
 190     public void destroy() {
 191         List<UebTopicSink> writers = this.inventory();
 192         for (UebTopicSink writer : writers) {
 193             writer.shutdown();
 194         }
 195
 196         synchronized (this) {
 197             this.uebTopicSinks.clear();
 198         }
 199     }
 200
 201     @Override
 202     public UebTopicSink get(String topic) {
 203
 204         if (topic == null || topic.isEmpty()) {
 205             throw new IllegalArgumentException(MISSING_TOPIC);
 206         }
 207
 208         synchronized (this) {
 209             if (uebTopicSinks.containsKey(topic)) {
 210                 return uebTopicSinks.get(topic);
 211             } else {
 212                 throw new IllegalStateException("UebTopicSink for " + topic + " not found");
 213             }
 214         }
 215     }
 216
 217     @Override
 218     public synchronized List<UebTopicSink> inventory() {
 219         return new ArrayList<>(this.uebTopicSinks.values());
 220     }
 221
 222     /**
 223      * Makes a new sink.
 224      *
 225      * @param busTopicParams parameters to use to configure the sink
 226      * @return a new sink
 227      */
 228     protected UebTopicSink makeSink(BusTopicParams busTopicParams) {
 229         return new InlineUebTopicSink(busTopicParams);
 230     }
 231
 232
 233     @Override
 234     public String toString() {
 235         StringBuilder builder = new StringBuilder();
 236         builder.append("IndexedUebTopicSinkFactory []");
 237         return builder.toString();
 238     }
 239
 240 }