diff options
Diffstat (limited to 'policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/impl/IndexedNoopTopicSinkFactory.java')
-rw-r--r-- | policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/impl/IndexedNoopTopicSinkFactory.java | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/impl/IndexedNoopTopicSinkFactory.java b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/impl/IndexedNoopTopicSinkFactory.java new file mode 100644 index 00000000..78bfd46c --- /dev/null +++ b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/impl/IndexedNoopTopicSinkFactory.java @@ -0,0 +1,185 @@ +/* + * ============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.impl; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.HashMap; +import java.util.List; +import java.util.Properties; + +import org.onap.policy.common.endpoints.event.comm.bus.NoopTopicSink; +import org.onap.policy.common.endpoints.event.comm.bus.NoopTopicSinkFactory; +import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Factory of noop sinks + */ +public class IndexedNoopTopicSinkFactory implements NoopTopicSinkFactory { + private static final String MISSING_TOPIC = "A topic must be provided"; + + private static final IndexedNoopTopicSinkFactory instance = new IndexedNoopTopicSinkFactory(); + + /** + * Logger + */ + private static Logger logger = LoggerFactory.getLogger(IndexedUebTopicSinkFactory.class); + + /** + * noop topic sinks map + */ + protected HashMap<String, NoopTopicSink> noopTopicSinks = new HashMap<>(); + + /** + * Get the singleton instance. + * + * @return the instance + */ + public static IndexedNoopTopicSinkFactory getInstance() { + return instance; + } + + private IndexedNoopTopicSinkFactory() {} + + @Override + public List<NoopTopicSink> build(Properties properties) { + + final String sinkTopics = properties.getProperty(PolicyEndPointProperties.PROPERTY_NOOP_SINK_TOPICS); + if (sinkTopics == null || sinkTopics.isEmpty()) { + logger.info("{}: no topic for noop sink", this); + return new ArrayList<>(); + } + + final List<String> sinkTopicList = new ArrayList<>(Arrays.asList(sinkTopics.split("\\s*,\\s*"))); + final List<NoopTopicSink> newSinks = new ArrayList<>(); + synchronized (this) { + for (final String topic : sinkTopicList) { + if (this.noopTopicSinks.containsKey(topic)) { + newSinks.add(this.noopTopicSinks.get(topic)); + continue; + } + + String servers = properties.getProperty(PolicyEndPointProperties.PROPERTY_NOOP_SINK_TOPICS + "." + topic + + PolicyEndPointProperties.PROPERTY_TOPIC_SERVERS_SUFFIX); + + if (servers == null || servers.isEmpty()) { + servers = "noop"; + } + + final List<String> serverList = new ArrayList<>(Arrays.asList(servers.split("\\s*,\\s*"))); + + final String managedString = properties.getProperty(PolicyEndPointProperties.PROPERTY_NOOP_SINK_TOPICS + "." + + topic + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX); + boolean managed = true; + if (managedString != null && !managedString.isEmpty()) { + managed = Boolean.parseBoolean(managedString); + } + + final NoopTopicSink noopSink = this.build(serverList, topic, managed); + newSinks.add(noopSink); + } + return newSinks; + } + } + + @Override + public NoopTopicSink build(List<String> servers, String topic, boolean managed) { + + List<String> noopSinkServers = servers; + if (noopSinkServers == null) { + noopSinkServers = new ArrayList<>(); + } + + if (noopSinkServers.isEmpty()) { + noopSinkServers.add("noop"); + } + + if (topic == null || topic.isEmpty()) { + throw new IllegalArgumentException(MISSING_TOPIC); + } + + synchronized (this) { + if (this.noopTopicSinks.containsKey(topic)) { + return this.noopTopicSinks.get(topic); + } + + final NoopTopicSink sink = new NoopTopicSink(noopSinkServers, topic); + + if (managed) { + this.noopTopicSinks.put(topic, sink); + } + + return sink; + } + } + + @Override + public void destroy(String topic) { + if (topic == null || topic.isEmpty()) { + throw new IllegalArgumentException(MISSING_TOPIC); + } + + NoopTopicSink noopSink; + synchronized (this) { + if (!this.noopTopicSinks.containsKey(topic)) { + return; + } + + noopSink = this.noopTopicSinks.remove(topic); + } + + noopSink.shutdown(); + } + + @Override + public void destroy() { + final List<NoopTopicSink> sinks = this.inventory(); + for (final NoopTopicSink sink : sinks) { + sink.shutdown(); + } + + synchronized (this) { + this.noopTopicSinks.clear(); + } + } + + @Override + public NoopTopicSink get(String topic) { + if (topic == null || topic.isEmpty()) { + throw new IllegalArgumentException(MISSING_TOPIC); + } + + synchronized (this) { + if (this.noopTopicSinks.containsKey(topic)) { + return this.noopTopicSinks.get(topic); + } else { + throw new IllegalStateException("DmaapTopicSink for " + topic + " not found"); + } + } + } + + @Override + public List<NoopTopicSink> inventory() { + return new ArrayList<>(this.noopTopicSinks.values()); + } +} |