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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.validation;
import static org.onap.dcae.analytics.web.util.ValidationUtils.isEmpty;
import java.util.List;
import org.onap.dcae.analytics.model.cef.EventSeverity;
import org.onap.dcae.analytics.tca.model.policy.ClosedLoopEventStatus;
import org.onap.dcae.analytics.tca.model.policy.ControlLoopSchemaType;
import org.onap.dcae.analytics.tca.model.policy.Direction;
import org.onap.dcae.analytics.tca.model.policy.MetricsPerEventName;
import org.onap.dcae.analytics.tca.model.policy.TcaPolicy;
import org.onap.dcae.analytics.tca.model.policy.Threshold;
import org.onap.dcae.analytics.web.validation.AnalyticsValidator;
import org.onap.dcae.analytics.web.validation.GenericValidationResponse;
import org.springframework.lang.Nullable;
import org.springframework.validation.Errors;
/**
* TCA Policy Validator validates {@link TcaPolicy}
*
* @author Rajiv Singla
*/
public class TcaPolicyValidator implements AnalyticsValidator<TcaPolicy, GenericValidationResponse> {
private static final long serialVersionUID = 1L;
@Override
public GenericValidationResponse apply(final TcaPolicy tcaPolicy) {
final GenericValidationResponse validationResponse = new GenericValidationResponse();
// validate TCA Policy must domain present
final String domain = tcaPolicy.getDomain();
if (isEmpty(domain)) {
validationResponse.addErrorMessage("domain", "TCA Policy must have only one domain present");
}
// validate TCA Policy must have at lease one metrics per event name
final List<MetricsPerEventName> metricsPerEventNames = tcaPolicy.getMetricsPerEventName();
if (metricsPerEventNames == null || metricsPerEventNames.isEmpty()) {
validationResponse
.addErrorMessage("metricsPerEventName", "TCA Policy metricsPerEventName is empty");
return validationResponse;
}
// validate Metrics Per Event Name
for (MetricsPerEventName metricsPerEventName : metricsPerEventNames) {
// event name must be present
final String eventName = metricsPerEventName.getEventName();
if (isEmpty(eventName)) {
validationResponse.addErrorMessage("eventName",
"TCA Policy eventName is not present for metricsPerEventNames:" + metricsPerEventName);
}
// control Loop Schema type must be present
final ControlLoopSchemaType controlLoopSchemaType = metricsPerEventName.getControlLoopSchemaType();
if (controlLoopSchemaType == null) {
validationResponse.addErrorMessage("controlLoopEventType",
"TCA Policy controlLoopSchemaType is not present for metricsPerEventNames:"
+ metricsPerEventName);
}
// must have at least 1 threshold defined
final List<Threshold> thresholds = metricsPerEventName.getThresholds();
if (thresholds == null || thresholds.isEmpty()) {
validationResponse.addErrorMessage("thresholds",
"TCA Policy event Name must have at least one threshold. " +
"Event Name causing this validation error:" + metricsPerEventName);
} else {
// validate each threshold must have non null - fieldPath, thresholdValue, direction and severity
for (Threshold eventNameThreshold : thresholds) {
final String fieldPath = eventNameThreshold.getFieldPath();
final Long thresholdValue = eventNameThreshold.getThresholdValue();
final Direction direction = eventNameThreshold.getDirection();
final EventSeverity severity = eventNameThreshold.getSeverity();
final ClosedLoopEventStatus closedLoopEventStatus = eventNameThreshold.getClosedLoopEventStatus();
if (isEmpty(fieldPath) || thresholdValue == null || direction == null || severity == null ||
closedLoopEventStatus == null) {
validationResponse.addErrorMessage("threshold",
"TCA Policy threshold must have fieldPath,thresholdValue,direction, " +
"closedLoopEventStatus and severity defined." +
"Threshold causing this validation error:" + eventNameThreshold);
}
}
}
}
return validationResponse;
}
@Override
public boolean supports(final Class<?> type) {
return type == TcaPolicy.class;
}
@Override
public void validate(@Nullable final Object target, final Errors errors) {
if (target == null) {
errors.rejectValue("tcaPolicy", "TCA Policy must not be null");
return;
}
final TcaPolicy tcaPolicy = (TcaPolicy) target;
final GenericValidationResponse validationResponse = apply(tcaPolicy);
if (validationResponse.hasErrors()) {
errors.rejectValue("tca policy", validationResponse.getAllErrorMessage());
}
}
}
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