forked from D-Net/dnet-hadoop
136 lines
4.7 KiB
Java
136 lines
4.7 KiB
Java
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package eu.dnetlib.dhp.collection;
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import static eu.dnetlib.dhp.common.Constants.*;
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import static eu.dnetlib.dhp.utils.DHPUtils.*;
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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.IOUtils;
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import org.apache.hadoop.fs.FileSystem;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import eu.dnetlib.dhp.aggregation.common.AggregatorReport;
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import eu.dnetlib.dhp.application.ArgumentApplicationParser;
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import eu.dnetlib.dhp.message.MessageSender;
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import eu.dnetlib.dhp.schema.mdstore.MDStoreVersion;
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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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private final FileSystem fileSystem;
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public CollectorWorkerApplication(FileSystem fileSystem) {
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this.fileSystem = fileSystem;
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}
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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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CollectorWorkerApplication.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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log.info("Java Xmx: {}m", Runtime.getRuntime().maxMemory() / (1024 * 1024));
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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(DNET_MESSAGE_MGR_URL);
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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 HttpClientParams clientParams = getClientParams(argumentParser);
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final ApiDescriptor api = MAPPER.readValue(apiDescriptor, ApiDescriptor.class);
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final FileSystem fileSystem = FileSystem.get(getHadoopConfiguration(hdfsuri));
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new CollectorWorkerApplication(fileSystem)
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.run(mdStoreVersion, clientParams, api, dnetMessageManagerURL, workflowId);
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}
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protected void run(String mdStoreVersion, HttpClientParams clientParams, ApiDescriptor api,
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String dnetMessageManagerURL, String workflowId)
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throws IOException, CollectorException, UnknownCollectorPluginException {
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final MDStoreVersion currentVersion = MAPPER.readValue(mdStoreVersion, MDStoreVersion.class);
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final MessageSender ms = new MessageSender(dnetMessageManagerURL, workflowId);
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try (AggregatorReport report = new AggregatorReport(ms)) {
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new CollectorWorker(api, fileSystem, currentVersion, clientParams, report).collect();
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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(MAX_NUMBER_OF_RETRY))
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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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.setRequestDelay(
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Optional
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.ofNullable(argumentParser.get(REQUEST_DELAY))
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.map(Integer::parseInt)
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.orElse(HttpClientParams._requestDelay));
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log.info("requestDelay is {}", clientParams.getRequestDelay());
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clientParams
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.setRetryDelay(
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Optional
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.ofNullable(argumentParser.get(RETRY_DELAY))
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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(CONNECT_TIMEOUT))
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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(READ_TIMEOUT))
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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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