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/*
* ===============================LICENSE_START======================================
* dcae-analytics
* ================================================================================
* Copyright © 2017 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.openecomp.dcae.apod.analytics.cdap.tca.utils;
import co.cask.cdap.api.RuntimeContext;
import com.google.common.base.Function;
import com.google.common.collect.Lists;
import org.openecomp.dcae.apod.analytics.cdap.common.exception.CDAPSettingsException;
import org.openecomp.dcae.apod.analytics.cdap.common.persistance.tca.TCAVESAlertEntity;
import org.openecomp.dcae.apod.analytics.cdap.tca.settings.TCAAppPreferences;
import org.openecomp.dcae.apod.analytics.cdap.tca.settings.TCAPolicyPreferences;
import org.openecomp.dcae.apod.analytics.cdap.tca.validator.TCAPolicyPreferencesValidator;
import org.openecomp.dcae.apod.analytics.cdap.tca.validator.TCAPreferencesValidator;
import org.openecomp.dcae.apod.analytics.common.AnalyticsConstants;
import org.openecomp.dcae.apod.analytics.model.domain.policy.tca.TCAPolicy;
import org.openecomp.dcae.apod.analytics.tca.utils.TCAUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import static com.google.common.collect.Lists.newArrayList;
import static org.openecomp.dcae.apod.analytics.cdap.common.utils.ValidationUtils.validateSettings;
import static org.openecomp.dcae.apod.analytics.common.AnalyticsConstants.TCA_POLICY_METRICS_PER_FUNCTIONAL_ROLE_PATH;
/**
* Utility Helper methods for CDAP TCA sub module.
*
* <p>
* @author Rajiv Singla . Creation Date: 10/24/2016.
*/
public abstract class CDAPTCAUtils extends TCAUtils {
private static final Logger LOG = LoggerFactory.getLogger(CDAPTCAUtils.class);
/**
* Function that extracts alert message string from {@link TCAVESAlertEntity}
*/
public static final Function<TCAVESAlertEntity, String> MAP_ALERT_ENTITY_TO_ALERT_STRING_FUNCTION =
new Function<TCAVESAlertEntity, String>() {
@Override
public String apply(TCAVESAlertEntity alertEntity) {
return alertEntity == null ? null : alertEntity.getAlertMessage();
}
};
/**
* Parses and validates Runtime Arguments to {@link TCAAppPreferences} object
*
* @param runtimeContext Runtime Context
*
* @return validated runtime arguments as {@link TCAAppPreferences} object
*/
public static TCAAppPreferences getValidatedTCAAppPreferences(final RuntimeContext runtimeContext) {
// Parse runtime arguments
final Map<String, String> runtimeArguments = runtimeContext.getRuntimeArguments();
final TCAAppPreferences tcaAppPreferences =
ANALYTICS_MODEL_OBJECT_MAPPER.convertValue(runtimeArguments, TCAAppPreferences.class);
// Validate runtime arguments
validateSettings(tcaAppPreferences, new TCAPreferencesValidator());
return tcaAppPreferences;
}
/**
* Extracts alert message strings from {@link TCAVESAlertEntity}
*
* @param alertEntities collection of alert entities
*
* @return List of alert message strings
*/
public static List<String> extractAlertFromAlertEntities(final Collection<TCAVESAlertEntity> alertEntities) {
return Lists.transform(newArrayList(alertEntities), MAP_ALERT_ENTITY_TO_ALERT_STRING_FUNCTION);
}
/**
* Converts Runtime Arguments to {@link TCAPolicyPreferences} object
*
* @param runtimeContext CDAP Runtime Arguments
*
* @return TCA Policy Preferences
*/
public static TCAPolicy getValidatedTCAPolicyPreferences(final RuntimeContext runtimeContext) {
final Map<String, String> runtimeArguments = runtimeContext.getRuntimeArguments();
final TreeMap<String, String> sortedRuntimeArguments = new TreeMap<>(runtimeArguments);
LOG.debug("Printing all Received Runtime Arguments:");
for (Map.Entry<String, String> runtimeArgsEntry : sortedRuntimeArguments.entrySet()) {
LOG.debug("{}:{}", runtimeArgsEntry.getKey(), runtimeArgsEntry.getValue());
}
TCAPolicyPreferences tcaPolicyPreferences = new TCAPolicyPreferences();
final String tcaPolicy = sortedRuntimeArguments.get(AnalyticsConstants.TCA_POLICY_JSON_KEY);
if (tcaPolicy != null) {
LOG.debug(" tcaPolicy is being read from JSON String");
// initialize unquotedTCAPolicy
String unquotedTCAPolicy = tcaPolicy;
//remove starting and ending quote from tcaPolicy
if (tcaPolicy.trim().startsWith(AnalyticsConstants.TCA_POLICY_STRING_DELIMITER) && tcaPolicy.trim().endsWith
(AnalyticsConstants.TCA_POLICY_STRING_DELIMITER)) {
unquotedTCAPolicy = tcaPolicy.trim().substring(1, tcaPolicy.trim().length() - 1);
}
try {
tcaPolicyPreferences = readValue(unquotedTCAPolicy , TCAPolicyPreferences.class);
} catch (IOException e) {
throw new CDAPSettingsException("Invalid tca policy format", LOG, e);
}
} else { // old controller is being used. Validate preferences as received from old controller
// extract TCA Policy Domain from Runtime Arguments
final String policyDomain = sortedRuntimeArguments.get(AnalyticsConstants.TCA_POLICY_DOMAIN_PATH);
// create new TCA Policy object
tcaPolicyPreferences.setDomain(policyDomain);
// filter out other non relevant fields which are not related to tca policy
final Map<String, String> tcaPolicyMap = filterMapByKeyNamePrefix(sortedRuntimeArguments,
TCA_POLICY_METRICS_PER_FUNCTIONAL_ROLE_PATH);
// determine functional Roles
final Map<String, Map<String, String>> functionalRolesMap =
extractSubTree(tcaPolicyMap, 2, 3, AnalyticsConstants.TCA_POLICY_DELIMITER);
// create metrics per functional role list
tcaPolicyPreferences.setMetricsPerFunctionalRole(
createTCAPolicyMetricsPerFunctionalRoleList(functionalRolesMap));
}
// validate tca Policy Preferences
validateSettings(tcaPolicyPreferences, new TCAPolicyPreferencesValidator());
LOG.info("Printing Effective TCA Policy: {}", tcaPolicyPreferences);
return tcaPolicyPreferences;
}
}
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