diff options
Diffstat (limited to 'policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/internal/InlineBusTopicSink.java')
| -rw-r--r-- | policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/internal/InlineBusTopicSink.java | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/internal/InlineBusTopicSink.java b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/internal/InlineBusTopicSink.java new file mode 100644 index 00000000..f3c736da --- /dev/null +++ b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/internal/InlineBusTopicSink.java @@ -0,0 +1,215 @@ +/* + * ============LICENSE_START======================================================= + * policy-endpoints + * ================================================================================ + * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.common.endpoints.event.comm.bus.internal; + +import java.util.List; +import java.util.UUID; + +import org.onap.policy.common.endpoints.event.comm.bus.BusTopicSink; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Transport Agnostic Bus Topic Sink to carry out the core functionality to interact with a sink + * regardless if it is UEB or DMaaP. + * + */ +public abstract class InlineBusTopicSink extends BusTopicBase implements BusTopicSink { + + /** + * loggers + */ + private static Logger logger = LoggerFactory.getLogger(InlineBusTopicSink.class); + private static final Logger netLogger = LoggerFactory.getLogger(NETWORK_LOGGER); + + /** + * The partition key to publish to + */ + protected String partitionId; + + /** + * message bus publisher + */ + protected BusPublisher publisher; + + /** + * constructor for abstract sink + * + * @param servers servers + * @param topic topic + * @param apiKey api secret + * @param apiSecret api secret + * @param partitionId partition id + * @param useHttps does connection use HTTPS? + * @param allowSelfSignedCerts are self-signed certificates allow + * @throws IllegalArgumentException in invalid parameters are passed in + */ + public InlineBusTopicSink(List<String> servers, String topic, String apiKey, String apiSecret, String partitionId, + boolean useHttps, boolean allowSelfSignedCerts) { + + super(servers, topic, apiKey, apiSecret, useHttps, allowSelfSignedCerts); + + if (partitionId == null || partitionId.isEmpty()) { + this.partitionId = UUID.randomUUID().toString(); + } + } + + /** + * Initialize the Bus publisher + */ + public abstract void init(); + + /** + * {@inheritDoc} + */ + @Override + public boolean start() { + logger.info("{}: starting", this); + + synchronized (this) { + + if (this.alive) { + return true; + } + + if (locked) { + throw new IllegalStateException(this + " is locked."); + } + + this.alive = true; + } + + this.init(); + return true; + } + + /** + * {@inheritDoc} + */ + @Override + public boolean stop() { + + BusPublisher publisherCopy; + synchronized (this) { + this.alive = false; + publisherCopy = this.publisher; + this.publisher = null; + } + + if (publisherCopy != null) { + try { + publisherCopy.close(); + } catch (Exception e) { + logger.warn("{}: cannot stop publisher because of {}", this, e.getMessage(), e); + } + } else { + logger.warn("{}: there is no publisher", this); + return false; + } + + return true; + } + + /** + * {@inheritDoc} + */ + @Override + public boolean send(String message) { + + if (message == null || message.isEmpty()) { + throw new IllegalArgumentException("Message to send is empty"); + } + + if (!this.alive) { + throw new IllegalStateException(this + " is stopped"); + } + + try { + synchronized (this) { + this.recentEvents.add(message); + } + + netLogger.info("[OUT|{}|{}]{}{}", this.getTopicCommInfrastructure(), this.topic, System.lineSeparator(), + message); + + publisher.send(this.partitionId, message); + broadcast(message); + } catch (Exception e) { + logger.warn("{}: cannot send because of {}", this, e.getMessage(), e); + return false; + } + + return true; + } + + + /** + * {@inheritDoc} + */ + @Override + public void setPartitionKey(String partitionKey) { + this.partitionId = partitionKey; + } + + /** + * {@inheritDoc} + */ + @Override + public String getPartitionKey() { + return this.partitionId; + } + + /** + * {@inheritDoc} + */ + @Override + public void shutdown() { + this.stop(); + } + + @Override + protected boolean anyNullOrEmpty(String... args) { + for (String arg : args) { + if (arg == null || arg.isEmpty()) { + return true; + } + } + + return false; + } + + @Override + protected boolean allNullOrEmpty(String... args) { + for (String arg : args) { + if (!(arg == null || arg.isEmpty())) { + return false; + } + } + + return true; + } + + + @Override + public String toString() { + return "InlineBusTopicSink [partitionId=" + partitionId + ", alive=" + alive + ", publisher=" + publisher + "]"; + } +} |