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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2018 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.prh.configuration;
import com.google.gson.JsonObject;
import org.onap.dcaegen2.services.sdk.rest.services.aai.client.config.AaiClientConfiguration;
import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.CbsClientFactory;
import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.CbsRequests;
import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.EnvProperties;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.api.DmaapClientFactory;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.api.MessageRouterPublisher;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.api.MessageRouterSubscriber;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterPublishRequest;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeRequest;
import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Configuration;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.core.scheduler.Schedulers;
import java.util.Optional;
@Configuration
public class CbsConfiguration implements Config {
private static final Logger LOGGER = LoggerFactory.getLogger(CbsConfiguration.class);
private static final String CBS_CONFIG_MISSING = "CBS config missing";
private AaiClientConfiguration aaiClientCBSConfiguration;
private MessageRouterPublisher messageRouterPublisher;
private MessageRouterSubscriber messageRouterSubscriber;
private MessageRouterPublishRequest messageRouterCBSPublishRequest;
private MessageRouterSubscribeRequest messageRouterCBSSubscribeRequest;
private MessageRouterPublishRequest messageRouterCBSUpdatePublishRequest;
private final ConsulConfigFileReader consulConfigFileReader;
public CbsConfiguration(ConsulConfigFileReader consulConfigFileReader) {
this.consulConfigFileReader = consulConfigFileReader;
}
public void runTask() {
Flux.defer(this::resolveEnvProperties)
.subscribeOn(Schedulers.parallel())
.subscribe(this::parsingConfigSuccess, this::parsingConfigError);
}
private Mono<EnvProperties> resolveEnvProperties() {
try {
return Mono.just(EnvProperties.fromEnvironment());
} catch(Exception e){
parsingConfigError(e);
return consulConfigFileReader.evaluate();
}
}
private void parsingConfigSuccess(EnvProperties envProperties) {
LOGGER.debug("Fetching PRH configuration from Consul");
CbsClientFactory.createCbsClient(envProperties)
.flatMap(cbsClient -> cbsClient.get(CbsRequests.getAll(RequestDiagnosticContext.create())))
.subscribe(this::parseCBSConfig, this::cbsConfigError);
}
private void parseCBSConfig(JsonObject jsonObject) {
LOGGER.info("Received application configuration: {}", jsonObject);
CbsContentParser consulConfigurationParser = new CbsContentParser(jsonObject);
aaiClientCBSConfiguration = consulConfigurationParser.getAaiClientConfig();
messageRouterPublisher = DmaapClientFactory.createMessageRouterPublisher(
consulConfigurationParser.getMessageRouterPublisherConfig());
messageRouterCBSPublishRequest = consulConfigurationParser.getMessageRouterPublishRequest();
messageRouterCBSUpdatePublishRequest = consulConfigurationParser.getMessageRouterUpdatePublishRequest();
messageRouterSubscriber = DmaapClientFactory.createMessageRouterSubscriber(
consulConfigurationParser.getMessageRouterSubscriberConfig());
messageRouterCBSSubscribeRequest = consulConfigurationParser.getMessageRouterSubscribeRequest();
}
private void parsingConfigError(Throwable throwable) {
LOGGER.warn("Failed to process system environments", throwable);
}
private void cbsConfigError(Throwable throwable) {
LOGGER.warn("Failed to gather configuration from ConfigBindingService/Consul", throwable);
}
@Override
public MessageRouterPublisher getMessageRouterPublisher() {
return Optional.ofNullable(messageRouterPublisher).orElseThrow(() -> new RuntimeException(CBS_CONFIG_MISSING));
}
@Override
public MessageRouterSubscriber getMessageRouterSubscriber() {
return Optional.ofNullable(messageRouterSubscriber).orElseThrow(() -> new RuntimeException(CBS_CONFIG_MISSING));
}
@Override
public MessageRouterPublishRequest getMessageRouterPublishRequest() {
return Optional.ofNullable(messageRouterCBSPublishRequest).orElseThrow(() -> new RuntimeException(CBS_CONFIG_MISSING));
}
@Override
public MessageRouterPublishRequest getMessageRouterUpdatePublishRequest() {
return Optional.ofNullable(messageRouterCBSUpdatePublishRequest).orElseThrow(() -> new RuntimeException(CBS_CONFIG_MISSING));
}
@Override
public AaiClientConfiguration getAaiClientConfiguration() {
return Optional.ofNullable(aaiClientCBSConfiguration).orElseThrow(() -> new RuntimeException(CBS_CONFIG_MISSING));
}
@Override
public MessageRouterSubscribeRequest getMessageRouterSubscribeRequest() {
return Optional.ofNullable(messageRouterCBSSubscribeRequest).orElseThrow(() -> new RuntimeException(CBS_CONFIG_MISSING));
}
}
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