2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2018 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
11 * http://www.apache.org/licenses/LICENSE-2.0
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=========================================================
21 package org.onap.policy.drools.event.comm.bus.internal;
23 import java.util.List;
24 import java.util.UUID;
26 import org.onap.policy.drools.event.comm.bus.BusTopicSink;
27 import org.slf4j.LoggerFactory;
28 import org.slf4j.Logger;
31 * Transport Agnostic Bus Topic Sink to carry out the core functionality
32 * to interact with a sink regardless if it is UEB or DMaaP.
35 public abstract class InlineBusTopicSink extends BusTopicBase implements BusTopicSink {
40 private static Logger logger = LoggerFactory.getLogger(InlineBusTopicSink.class);
41 private static final Logger netLogger = LoggerFactory.getLogger(NETWORK_LOGGER);
44 * The partition key to publish to
46 protected String partitionId;
49 * message bus publisher
51 protected BusPublisher publisher;
54 * constructor for abstract sink
56 * @param servers servers
58 * @param apiKey api secret
59 * @param apiSecret api secret
60 * @param partitionId partition id
61 * @param useHttps does connection use HTTPS?
62 * @param allowSelfSignedCerts are self-signed certificates allow
63 * @throws IllegalArgumentException in invalid parameters are passed in
65 public InlineBusTopicSink(List<String> servers, String topic,
66 String apiKey, String apiSecret, String partitionId, boolean useHttps, boolean allowSelfSignedCerts) {
68 super(servers, topic, apiKey, apiSecret, useHttps, allowSelfSignedCerts);
70 if (partitionId == null || partitionId.isEmpty()) {
71 this.partitionId = UUID.randomUUID ().toString();
76 * Initialize the Bus publisher
78 public abstract void init();
84 public boolean start() {
85 logger.info("{}: starting", this);
93 throw new IllegalStateException(this + " is locked.");
106 public boolean stop() {
108 BusPublisher publisherCopy;
111 publisherCopy = this.publisher;
112 this.publisher = null;
115 if (publisherCopy != null) {
117 publisherCopy.close();
118 } catch (Exception e) {
119 logger.warn("{}: cannot stop publisher because of {}",
120 this, e.getMessage(), e);
123 logger.warn("{}: there is no publisher", this);
134 public boolean send(String message) {
136 if (message == null || message.isEmpty()) {
137 throw new IllegalArgumentException("Message to send is empty");
141 throw new IllegalStateException(this + " is stopped");
145 synchronized (this) {
146 this.recentEvents.add(message);
149 netLogger.info("[OUT|{}|{}]{}{}", this.getTopicCommInfrastructure(),
150 this.topic, System.lineSeparator(), message);
152 publisher.send(this.partitionId, message);
154 } catch (Exception e) {
155 logger.warn("{}: cannot send because of {}", this, e.getMessage(), e);
167 public void setPartitionKey(String partitionKey) {
168 this.partitionId = partitionKey;
175 public String getPartitionKey() {
176 return this.partitionId;
183 public void shutdown() {
187 protected boolean anyNullOrEmpty(String... args) {
188 for (String arg : args) {
189 if (arg == null || arg.isEmpty()) {
197 protected boolean allNullOrEmpty(String... args) {
198 for (String arg : args) {
199 if (!(arg == null || arg.isEmpty())) {
209 public String toString() {
210 return "InlineBusTopicSink [partitionId=" + partitionId + ", alive=" + alive + ", publisher=" + publisher + "]";