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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2020-2021 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.controlloop.common.rules.test;
import java.util.LinkedList;
import java.util.List;
import lombok.AccessLevel;
import lombok.Getter;
import org.onap.policy.common.endpoints.http.server.HttpServletServer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Simulator container.
*/
public class Simulators {
private static final Logger logger = LoggerFactory.getLogger(Simulators.class);
@Getter(AccessLevel.PROTECTED)
private final List<HttpServletServer> servers = new LinkedList<>();
/**
* Invokes the given functions to start the simulators. Destroys <i>all</i> of the
* simulators if any fail to start.
*
* @param builders functions to invoke to build the simulators
*/
public void start(SimulatorBuilder... builders) {
try {
for (SimulatorBuilder builder : builders) {
servers.add(builder.build());
}
} catch (InterruptedException e) {
logger.warn("interrupted building the simulators");
destroy();
Thread.currentThread().interrupt();
throw new SimulatorException(e);
}
}
/**
* Stops all the simulators.
*/
public void destroy() {
for (HttpServletServer server : servers) {
try {
server.shutdown();
} catch (RuntimeException e) {
logger.warn("error stopping simulator {}", server.getName(), e);
}
}
servers.clear();
}
@FunctionalInterface
public interface SimulatorBuilder {
HttpServletServer build() throws InterruptedException;
}
}
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