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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
* Copyright (C) 2020 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.collectors.datafile.tasks;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.time.Duration;
import java.util.Map;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.onap.dcaegen2.collectors.datafile.configuration.AppConfig;
import org.onap.dcaegen2.collectors.datafile.configuration.PublisherConfiguration;
import org.onap.dcaegen2.collectors.datafile.exceptions.DatafileTaskException;
import org.onap.dcaegen2.collectors.datafile.model.logging.MappedDiagnosticContext;
import org.onap.dcaegen2.collectors.datafile.service.producer.DmaapProducerHttpClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
/**
* Bean used to check with DataRouter if a file has been published.
*
* @author <a href="mailto:maxime.bonneau@est.tech">Maxime Bonneau</a>
*
*/
public class PublishedChecker {
private static final Duration WEB_CLIENT_TIMEOUT = Duration.ofSeconds(4);
private final Logger logger = LoggerFactory.getLogger(this.getClass());
private final AppConfig appConfig;
/**
* Constructor.
*
* @param appConfig The DFC configuration.
*/
public PublishedChecker(AppConfig appConfig) {
this.appConfig = appConfig;
}
/**
* Checks with DataRouter if the given file has been published already.
*
* @param fileName the name of the file used when it is published.
*
* @return <code>true</code> if the file has been published before, <code>false</code>
* otherwise.
* @throws DatafileTaskException if the check fails
*/
public boolean isFilePublished(String fileName, String changeIdentifier, Map<String, String> contextMap)
throws DatafileTaskException {
MDC.setContextMap(contextMap);
PublisherConfiguration publisherConfig = resolveConfiguration(changeIdentifier);
DmaapProducerHttpClient producerClient = resolveClient(publisherConfig);
HttpGet getRequest = new HttpGet();
MappedDiagnosticContext.appendTraceInfo(getRequest);
try {
getRequest.setURI(getPublishedQueryUri(fileName, publisherConfig));
producerClient.addUserCredentialsToHead(getRequest);
HttpResponse response =
producerClient.getDmaapProducerResponseWithCustomTimeout(getRequest, WEB_CLIENT_TIMEOUT, contextMap);
logger.trace("{}", response);
int status = response.getStatusLine().getStatusCode();
HttpEntity entity = response.getEntity();
try (InputStream content = entity.getContent()) {
String body = IOUtils.toString(content);
return HttpStatus.SC_OK == status && !"[]".equals(body);
}
} catch (Exception e) {
logger.warn("Unable to check if file has been published, file: {}", fileName, e);
return false;
}
}
private static URI getPublishedQueryUri(String fileName, PublisherConfiguration config) throws URISyntaxException {
return new URIBuilder(config.logUrl()) //
.addParameter("type", "pub") //
.addParameter("filename", fileName) //
.build();
}
protected PublisherConfiguration resolveConfiguration(String changeIdentifier) throws DatafileTaskException {
return appConfig.getPublisherConfiguration(changeIdentifier);
}
protected DmaapProducerHttpClient resolveClient(PublisherConfiguration publisherConfig) {
return new DmaapProducerHttpClient(publisherConfig);
}
}
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