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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2021-2022 Nokia. 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.dcaegen2.services.pmmapper.utils;
import com.google.gson.JsonElement;
import com.google.gson.JsonParser;
import io.vavr.control.Try;
import org.onap.dcaegen2.services.sdk.model.streams.AafCredentials;
import org.onap.dcaegen2.services.sdk.model.streams.dmaap.ImmutableMessageRouterSink;
import org.onap.dcaegen2.services.sdk.model.streams.dmaap.ImmutableMessageRouterSink.Builder;
import org.onap.dcaegen2.services.sdk.model.streams.dmaap.MessageRouterSink;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.ContentType;
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.model.ImmutableMessageRouterPublishRequest;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterPublishRequest;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterPublishResponse;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.config.DmaapRetryConfig;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.config.DmaapTimeoutConfig;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.config.ImmutableDmaapRetryConfig;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.config.ImmutableDmaapTimeoutConfig;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.config.ImmutableMessageRouterPublisherConfig;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.config.MessageRouterPublisherConfig;
import org.onap.dcaegen2.services.sdk.rest.services.model.logging.ImmutableRequestDiagnosticContext;
import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
import org.onap.logging.ref.slf4j.ONAPLogAdapter;
import org.slf4j.LoggerFactory;
import reactor.core.publisher.Flux;
import java.util.List;
import java.util.UUID;
import java.util.stream.Collectors;
import static org.onap.dcaegen2.services.pmmapper.utils.SendersConfig.MAX_RETRIES;
import static org.onap.dcaegen2.services.pmmapper.utils.SendersConfig.RETRY_INTERVAL;
public class DmaapRequestSender {
private static final ONAPLogAdapter LOGGER = new ONAPLogAdapter(LoggerFactory.getLogger(DmaapRequestSender.class));
private static final DmaapRetryConfig RETRY_CONFIG = ImmutableDmaapRetryConfig.builder()
.retryCount(MAX_RETRIES)
.retryIntervalInSeconds((int) RETRY_INTERVAL.getSeconds())
.build();
private static final MessageRouterPublisherConfig CLIENT_CONFIGURATION =
ImmutableMessageRouterPublisherConfig.builder()
.retryConfig(RETRY_CONFIG)
.build();
private static final DmaapTimeoutConfig READ_TIMEOUT = ImmutableDmaapTimeoutConfig.builder()
.timeout(SendersConfig.READ_TIMEOUT)
.build();
private static final MessageRouterPublisher PUBLISHER =
DmaapClientFactory.createMessageRouterPublisher(CLIENT_CONFIGURATION);
/**
* Sends an http request to a given dmaap-mr topic.
*
* @param topicUrl representing given topic
* @param vesEvents of the requests as json
* @param credentials base64-encoded username password credentials
* @return dmaap-mr response
*/
public Flux<MessageRouterPublishResponse> send(final String topicUrl, final List<String> vesEvents, final AafCredentials credentials) {
MessageRouterPublishRequest request = ImmutableMessageRouterPublishRequest.builder()
.contentType(ContentType.TEXT_PLAIN)
.sinkDefinition(sink(topicUrl, credentials))
.timeoutConfig(READ_TIMEOUT)
.diagnosticContext(diagnosticContext())
.build();
return PUBLISHER.put(request, jsonBatch(vesEvents));
}
private static MessageRouterSink sink(String topicUrl, AafCredentials credentials) {
Builder builder = ImmutableMessageRouterSink.builder();
if (credentialsExists(credentials)) {
builder.aafCredentials(credentials);
}
return builder.topicUrl(topicUrl).build();
}
private static boolean credentialsExists(AafCredentials credentials) {
return isNotBlank(credentials.username()) && isNotBlank(credentials.password());
}
private static boolean isNotBlank(String str) {
return str != null && !str.isEmpty();
}
private static RequestDiagnosticContext diagnosticContext() {
UUID invocationId = uuid(LoggingUtils.invocationID(LOGGER));
UUID requestId = uuid(LoggingUtils.requestID());
return ImmutableRequestDiagnosticContext.builder()
.invocationId(invocationId)
.requestId(requestId)
.build();
}
private static Flux<JsonElement> jsonBatch(List<String> events) {
return Flux.fromIterable(getAsJsonElements(events));
}
private static List<JsonElement> getAsJsonElements(List<String> events) {
return events.stream()
.map(JsonParser::parseString)
.collect(Collectors.toList());
}
private static UUID uuid(String s) {
return Try.of(() -> UUID.fromString(s))
.getOrElse(UUID::randomUUID);
}
}
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