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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.testsuites.integration.executor.engine;
import java.util.ArrayList;
import java.util.List;
import org.onap.policy.apex.core.engine.engine.EnEventListener;
import org.onap.policy.apex.core.engine.event.EnEvent;
import org.onap.policy.apex.core.infrastructure.threading.ThreadUtilities;
import org.slf4j.ext.XLogger;
import org.slf4j.ext.XLoggerFactory;
/**
* The listener interface for receiving testApexAction events. The class that is interested in
* processing a testApexAction event implements this interface, and the object created with that
* class is registered with a component using the component's <code>addTestApexActionListener</code>
* method. When the testApexAction event occurs, that object's appropriate method is invoked.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
public class TestApexActionListener implements EnEventListener {
private static final XLogger logger = XLoggerFactory.getXLogger(TestApexActionListener.class);
private List<EnEvent> resultEvents = new ArrayList<>();
private final String id;
/**
* Instantiates a new test apex action listener.
*
* @param id the id
*/
public TestApexActionListener(final String id) {
this.id = id;
}
/**
* Gets the result.
*
* @param allowNulls if true and the returned event is null, then return, otherwise wait until
* an event is returned.
* @return the result
*/
public EnEvent getResult(final boolean allowNulls) {
EnEvent result = null;
while (true) {
while (resultEvents.isEmpty()) {
ThreadUtilities.sleep(100);
}
result = resultEvents.remove(0);
if (result != null || allowNulls) {
break;
}
}
return result;
}
/**
* {@inheritDoc}.
*/
@Override
public void onEnEvent(final EnEvent actionEvent) {
ThreadUtilities.sleep(100);
if (actionEvent != null) {
logger.info("Action event from engine: {}", actionEvent.getName());
}
resultEvents.add(actionEvent);
}
/**
* Gets the id.
*
* @return the id
*/
public String getId() {
return id;
}
}
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