99 lines
3.3 KiB
Java
99 lines
3.3 KiB
Java
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package eu.dnetlib.dhp.oa.graph.dump;
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import java.io.BufferedWriter;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.io.Serializable;
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import java.nio.charset.StandardCharsets;
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import java.util.Optional;
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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.dom4j.DocumentException;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.xml.sax.SAXException;
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import eu.dnetlib.dhp.application.ArgumentApplicationParser;
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import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpException;
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/**
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* This class connects with the IS related to the isLookUpUrl got as parameter. It saves the information about the
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* context that will guide the dump of the results. The information saved is a HashMap. The key is the id of a community
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* - research infrastructure/initiative , the value is the label of the research community - research
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* infrastructure/initiative.
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*/
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public class SaveCommunityMap implements Serializable {
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private static final Logger log = LoggerFactory.getLogger(SaveCommunityMap.class);
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private final transient QueryInformationSystem queryInformationSystem;
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private final transient BufferedWriter writer;
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public SaveCommunityMap(String hdfsPath, String hdfsNameNode, String isLookUpUrl) throws IOException {
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final Configuration conf = new Configuration();
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conf.set("fs.defaultFS", hdfsNameNode);
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FileSystem fileSystem = FileSystem.get(conf);
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Path hdfsWritePath = new Path(hdfsPath);
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if (fileSystem.exists(hdfsWritePath)) {
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fileSystem.delete(hdfsWritePath, true);
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}
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queryInformationSystem = new QueryInformationSystem();
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queryInformationSystem.setIsLookUp(Utils.getIsLookUpService(isLookUpUrl));
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FSDataOutputStream fos = fileSystem.create(hdfsWritePath);
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writer = new BufferedWriter(new OutputStreamWriter(fos, StandardCharsets.UTF_8));
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}
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public static void main(String[] args) throws Exception {
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String jsonConfiguration = IOUtils
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.toString(
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SaveCommunityMap.class
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.getResourceAsStream(
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"/eu/dnetlib/dhp/oa/graph/dump/input_cm_parameters.json"));
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final ArgumentApplicationParser parser = new ArgumentApplicationParser(jsonConfiguration);
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parser.parseArgument(args);
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final String nameNode = parser.get("nameNode");
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log.info("nameNode: {}", nameNode);
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final String outputPath = parser.get("outputPath");
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log.info("outputPath: {}", outputPath);
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final String isLookUpUrl = parser.get("isLookUpUrl");
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log.info("isLookUpUrl: {}", isLookUpUrl);
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final Boolean singleCommunity = Optional
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.ofNullable(parser.get("singleDeposition"))
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.map(Boolean::valueOf)
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.orElse(false);
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final String community_id = Optional.ofNullable(parser.get("communityId")).orElse(null);
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final SaveCommunityMap scm = new SaveCommunityMap(outputPath, nameNode, isLookUpUrl);
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scm.saveCommunityMap(singleCommunity, community_id);
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}
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private void saveCommunityMap(boolean singleCommunity, String communityId)
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throws ISLookUpException, IOException, DocumentException, SAXException {
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final String communityMapString = Utils.OBJECT_MAPPER
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.writeValueAsString(queryInformationSystem.getCommunityMap(singleCommunity, communityId));
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log.info("communityMap {} ", communityMapString);
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writer
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.write(
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communityMapString);
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writer.close();
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}
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}
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