130 lines
4.8 KiB
Java
130 lines
4.8 KiB
Java
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package eu.dnetlib.dhp.collection.worker;
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import static eu.dnetlib.dhp.aggregation.common.AggregationConstants.*;
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import static eu.dnetlib.dhp.aggregation.common.AggregationUtility.*;
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import static eu.dnetlib.dhp.application.ApplicationUtils.*;
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import java.io.IOException;
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import java.util.Optional;
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import org.apache.commons.cli.ParseException;
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import org.apache.commons.io.FileSystemUtils;
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import org.apache.commons.io.IOUtils;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FSDataOutputStream;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.Path;
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import org.jetbrains.annotations.NotNull;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import eu.dnetlib.data.mdstore.manager.common.model.MDStoreVersion;
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import eu.dnetlib.dhp.aggregation.common.AggregationUtility;
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import eu.dnetlib.dhp.application.ArgumentApplicationParser;
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import eu.dnetlib.dhp.collection.worker.utils.CollectorPluginReport;
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import eu.dnetlib.dhp.collection.worker.utils.HttpClientParams;
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import eu.dnetlib.dhp.collection.worker.utils.UnknownCollectorPluginException;
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import eu.dnetlib.dhp.collector.worker.model.ApiDescriptor;
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import eu.dnetlib.dhp.message.MessageSender;
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/**
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* CollectorWorkerApplication is the main class responsible to start the metadata collection process, storing the outcomes
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* into HDFS. This application will be executed on the hadoop cluster, where invoked in the context of the metadata collection
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* oozie workflow, it will receive all the input parameters necessary to instantiate the specific collection plugin and the
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* relative specific configurations
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*
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* @author Sandro La Bruzzo, Claudio Atzori
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*/
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public class CollectorWorkerApplication {
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private static final Logger log = LoggerFactory.getLogger(CollectorWorkerApplication.class);
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/**
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* @param args
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*/
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public static void main(final String[] args)
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throws ParseException, IOException, UnknownCollectorPluginException, CollectorException {
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final ArgumentApplicationParser argumentParser = new ArgumentApplicationParser(
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IOUtils
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.toString(
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CollectorWorker.class
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.getResourceAsStream(
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"/eu/dnetlib/dhp/collection/collector_worker_input_parameter.json")));
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argumentParser.parseArgument(args);
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final String hdfsuri = argumentParser.get("namenode");
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log.info("hdfsURI is {}", hdfsuri);
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final String apiDescriptor = argumentParser.get("apidescriptor");
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log.info("apiDescriptor is {}", apiDescriptor);
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final String mdStoreVersion = argumentParser.get("mdStoreVersion");
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log.info("mdStoreVersion is {}", mdStoreVersion);
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final String dnetMessageManagerURL = argumentParser.get("dnetMessageManagerURL");
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log.info("dnetMessageManagerURL is {}", dnetMessageManagerURL);
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final String workflowId = argumentParser.get("workflowId");
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log.info("workflowId is {}", workflowId);
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final MessageSender ms = new MessageSender(dnetMessageManagerURL, workflowId);
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final MDStoreVersion currentVersion = MAPPER.readValue(mdStoreVersion, MDStoreVersion.class);
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final String reportPath = currentVersion.getHdfsPath() + REPORT_FILE_NAME;
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log.info("report path is {}", reportPath);
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final HttpClientParams clientParams = getClientParams(argumentParser);
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final ApiDescriptor api = MAPPER.readValue(apiDescriptor, ApiDescriptor.class);
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final Configuration conf = getHadoopConfiguration(hdfsuri);
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try (CollectorPluginReport report = new CollectorPluginReport(FileSystem.get(conf), new Path(reportPath))) {
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final CollectorWorker worker = new CollectorWorker(api, conf, currentVersion, clientParams, ms, report);
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worker.collect();
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report.setSuccess(true);
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} catch (Throwable e) {
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log.info("got exception {}, ignoring", e.getMessage());
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}
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}
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private static HttpClientParams getClientParams(ArgumentApplicationParser argumentParser) {
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final HttpClientParams clientParams = new HttpClientParams();
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clientParams
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.setMaxNumberOfRetry(
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Optional
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.ofNullable(argumentParser.get("maxNumberOfRetry"))
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.map(Integer::parseInt)
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.orElse(HttpClientParams._maxNumberOfRetry));
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log.info("maxNumberOfRetry is {}", clientParams.getMaxNumberOfRetry());
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clientParams
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.setRetryDelay(
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Optional
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.ofNullable(argumentParser.get("retryDelay"))
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.map(Integer::parseInt)
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.orElse(HttpClientParams._retryDelay));
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log.info("retryDelay is {}", clientParams.getRetryDelay());
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clientParams
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.setConnectTimeOut(
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Optional
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.ofNullable(argumentParser.get("connectTimeOut"))
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.map(Integer::parseInt)
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.orElse(HttpClientParams._connectTimeOut));
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log.info("connectTimeOut is {}", clientParams.getConnectTimeOut());
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clientParams
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.setReadTimeOut(
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Optional
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.ofNullable(argumentParser.get("readTimeOut"))
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.map(Integer::parseInt)
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.orElse(HttpClientParams._readTimeOut));
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log.info("readTimeOut is {}", clientParams.getReadTimeOut());
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return clientParams;
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}
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}
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