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/*
* ================================================================================
* Copyright (c) 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.dcae.analytics.tca.web.util;
import static org.onap.dcae.analytics.tca.model.util.json.TcaModelJsonConversion.TCA_OBJECT_MAPPER;
import com.fasterxml.jackson.core.JsonProcessingException;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
import org.onap.dcae.analytics.model.TcaModelConstants;
import org.onap.dcae.analytics.model.cef.EventListener;
import org.onap.dcae.analytics.tca.model.policy.TcaPolicy;
import org.onap.dcae.analytics.web.exception.AnalyticsParsingException;
import org.onap.dcae.utils.eelf.logger.model.info.ServiceLogInfoImpl;
/**
* @author Rajiv Singla
*/
public abstract class TcaUtils {
/**
* TCA Service Log Info for ECOMP Logging
*/
public static final ServiceLogInfoImpl TCA_SERVICE_LOG_INFO =
new ServiceLogInfoImpl(TcaModelConstants.TCA_SERVICE_NAME, System.getProperty("user.name"), "");
/**
* Creates a deep copy of Tca Policy
*
* @param tcaPolicy source tca policy object
*
* @return deep copy of provided tca policy
*/
public static TcaPolicy getTcaPolicyDeepCopy(final TcaPolicy tcaPolicy) {
if (tcaPolicy != null) {
try {
return TCA_OBJECT_MAPPER.treeToValue(TCA_OBJECT_MAPPER.valueToTree(tcaPolicy), TcaPolicy.class);
} catch (JsonProcessingException e) {
throw new AnalyticsParsingException("Unable to create deep copy of TCA Policy: " + tcaPolicy, e);
}
} else {
final String errorMessage = "Invalid application state. TCA Policy must not be null";
throw new AnalyticsParsingException(errorMessage, new IllegalStateException(errorMessage));
}
}
/**
* Converts given event Listeners to list of CEF Message String
*
* @param eventListeners event listeners object
*
* @return cef messages as string
*/
public static List<String> getCefMessagesFromEventListeners(final List<EventListener> eventListeners) {
if (!Optional.ofNullable(eventListeners).isPresent()) {
return Collections.emptyList();
}
return eventListeners.stream().map(eventListener -> {
try {
return TCA_OBJECT_MAPPER.writeValueAsString(eventListener);
} catch (JsonProcessingException e) {
throw new AnalyticsParsingException("Unable to parse EventLister to String: " + eventListener, e);
}
}).collect(Collectors.toList());
}
private TcaUtils() {
// private constructor
}
}
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