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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019-2020 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.policy.controlloop.utils;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import org.apache.commons.lang3.StringUtils;
import org.onap.policy.controlloop.ControlLoopException;
import org.onap.policy.controlloop.drl.legacy.ControlLoopParams;
import org.onap.policy.controlloop.processor.ControlLoopProcessor;
import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Control Loop Utils.
*/
public class ControlLoopUtils {
public static final Logger logger = LoggerFactory.getLogger(ControlLoopUtils.class);
public static final String TOSCA_POLICY_PROPERTY_CONTENT = "content";
private ControlLoopUtils() {
super();
}
/**
* Get a Control Loop Parameters object from a Tosca Policy.
*/
public static ControlLoopParams toControlLoopParams(ToscaPolicy policy) {
// TODO: ControlLoopParams class should be moved to this repo and take Tosca Policy in a constructor.
/* No exceptions are thrown to keep the DRL simpler */
try {
if (policy == null || policy.getProperties() == null
|| policy.getProperties().get(TOSCA_POLICY_PROPERTY_CONTENT) == null) {
logger.error("Invalid Policy: {}", policy);
return null;
}
String encodedPolicy = policy.getProperties().get(TOSCA_POLICY_PROPERTY_CONTENT).toString();
String decodedPolicy = URLDecoder.decode(encodedPolicy, "UTF-8");
ControlLoopProcessor controlLoopProcessor = new ControlLoopProcessor(decodedPolicy);
if (controlLoopProcessor.getControlLoop() == null
|| StringUtils.isEmpty(controlLoopProcessor.getControlLoop().getControlLoopName())) {
return null;
}
ControlLoopParams controlLoopParams = new ControlLoopParams();
controlLoopParams.setClosedLoopControlName(controlLoopProcessor.getControlLoop().getControlLoopName());
controlLoopParams.setControlLoopYaml(encodedPolicy);
controlLoopParams.setPolicyScope(policy.getType() + ":" + policy.getTypeVersion());
controlLoopParams.setPolicyName(policy.getName());
controlLoopParams.setPolicyVersion(policy.getVersion());
return controlLoopParams;
} catch (ControlLoopException | RuntimeException | UnsupportedEncodingException e) {
logger.error("Invalid Policy because of {}: {}", e.getMessage(), policy, e);
return null;
}
}
}
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