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/*
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2024 Nordix Foundation.
* ================================================================================
* 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.drools.legacy.config;
import java.util.List;
import java.util.Properties;
import lombok.Getter;
import org.onap.policy.common.capabilities.Startable;
import org.onap.policy.common.endpoints.event.comm.Topic;
import org.onap.policy.common.endpoints.event.comm.TopicEndpointManager;
import org.onap.policy.common.endpoints.event.comm.TopicListener;
import org.onap.policy.common.endpoints.event.comm.TopicSource;
import org.onap.policy.drools.persistence.SystemPersistenceConstants;
import org.onap.policy.drools.system.PolicyEngineConstants;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Legacy Configurator.
*/
@Getter
public class LegacyConfig implements Startable, TopicListener {
private static final Logger logger = LoggerFactory.getLogger(LegacyConfig.class);
private static final String CONFIGURATION_PROPERTIES_NAME = "feature-legacy-config";
private final Properties properties;
private final TopicSource source;
/**
* Constructor.
*/
public LegacyConfig() {
properties = SystemPersistenceConstants.getManager().getProperties(CONFIGURATION_PROPERTIES_NAME);
List<TopicSource> sources = TopicEndpointManager.getManager().addTopicSources(properties);
if (sources.isEmpty()) {
throw new IllegalStateException("LegacyConfig cannot be instantiated, no sources");
}
this.source = sources.get(0);
if (sources.size() != 1) {
logger.warn("LegacyConfig: more than one source is configured ({}), using {}",
sources.size(), this.source);
}
source.register(this);
}
@Override
public boolean start() {
return source.start();
}
@Override
public boolean stop() {
return source.stop();
}
@Override
public void shutdown() {
source.shutdown();
}
@Override
public boolean isAlive() {
return source.isAlive();
}
@Override
public void onTopicEvent(Topic.CommInfrastructure comm, String topic, String event) {
PolicyEngineConstants.getManager().onTopicEvent(comm, topic, event);
}
}
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