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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2019 NOKIA 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.dcaegen2.services.bootstrap;
import com.google.gson.JsonObject;
import org.onap.dcaegen2.services.prh.configuration.CbsConfiguration;
import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.CbsRequests;
import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.CbsClientConfiguration;
import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.bootstrap.config.PropertySourceLocator;
import org.springframework.core.env.Environment;
import org.springframework.core.env.MapPropertySource;
import org.springframework.core.env.PropertySource;
import java.util.Map;
public class CbsPropertySourceLocator implements PropertySourceLocator {
private static final Logger LOGGER = LoggerFactory.getLogger(CbsPropertySourceLocator.class);
private final CbsProperties cbsProperties;
private final CbsJsonToPropertyMapConverter cbsJsonToPropertyMapConverter;
private final CbsClientConfigurationResolver cbsClientConfigurationResolver;
private final CbsClientFactoryFacade cbsClientFactoryFacade;
private final CbsConfiguration cbsConfiguration;
public CbsPropertySourceLocator(CbsProperties cbsProperties,
CbsJsonToPropertyMapConverter cbsJsonToPropertyMapConverter,
CbsClientConfigurationResolver cbsClientConfigurationResolver,
CbsClientFactoryFacade cbsClientFactoryFacade,
CbsConfiguration cbsConfiguration) {
this.cbsProperties = cbsProperties;
this.cbsJsonToPropertyMapConverter = cbsJsonToPropertyMapConverter;
this.cbsClientConfigurationResolver = cbsClientConfigurationResolver;
this.cbsClientFactoryFacade = cbsClientFactoryFacade;
this.cbsConfiguration = cbsConfiguration;
}
@Override
public PropertySource<?> locate(Environment environment) {
CbsClientConfiguration cbsClientConfiguration = cbsClientConfigurationResolver.resolveCbsClientConfiguration();
LOGGER.info("Fetching configuration from Config Binding Service @ {}:{} for {}",
cbsClientConfiguration.hostname(), cbsClientConfiguration.port(), cbsClientConfiguration.appName());
Map<String, Object> properties = cbsClientFactoryFacade.createCbsClient(cbsClientConfiguration)
.flatMap(cbsClient -> cbsClient.get(CbsRequests.getAll(RequestDiagnosticContext.create())))
.doOnError(e -> LOGGER.warn("Failed fetching config properties from CBS - retrying...", e))
.retryBackoff(cbsProperties.getFetchRetries().getMaxAttempts(),
cbsProperties.getFetchRetries().getFirstBackoff(),
cbsProperties.getFetchRetries().getMaxBackoff())
.doOnNext(this::updateCbsConfig)
.map(cbsJsonToPropertyMapConverter::convertToMap)
.block();
return new MapPropertySource("cbs", properties);
}
private void updateCbsConfig(JsonObject jsonObject) {
try {
cbsConfiguration.parseCBSConfig(jsonObject);
} catch (Exception e) {
LOGGER.error("Failed parsing configuration from CBS", e);
throw e;
}
}
}
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