forked from D-Net/dnet-hadoop
120 lines
4.0 KiB
Java
120 lines
4.0 KiB
Java
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package eu.dnetlib.dhp.actionmanager;
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import java.io.Serializable;
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import java.io.StringReader;
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import java.util.List;
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import java.util.NoSuchElementException;
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import java.util.Optional;
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import java.util.Set;
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import java.util.stream.Collectors;
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import org.apache.commons.lang3.tuple.Triple;
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import org.dom4j.Document;
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import org.dom4j.DocumentException;
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import org.dom4j.io.SAXReader;
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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 com.google.common.base.Joiner;
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import com.google.common.base.Splitter;
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import com.google.common.collect.Iterables;
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import com.google.common.collect.Sets;
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import eu.dnetlib.actionmanager.rmi.ActionManagerException;
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import eu.dnetlib.dhp.utils.ISLookupClientFactory;
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import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpException;
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import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;
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public class ISClient implements Serializable {
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private static final Logger log = LoggerFactory.getLogger(ISClient.class);
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private static final String INPUT_ACTION_SET_ID_SEPARATOR = ",";
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private final transient ISLookUpService isLookup;
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public ISClient(String isLookupUrl) {
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isLookup = ISLookupClientFactory.getLookUpService(isLookupUrl);
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}
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public List<String> getLatestRawsetPaths(String setIds) {
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final Set<String> ids = Sets
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.newHashSet(
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Splitter
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.on(INPUT_ACTION_SET_ID_SEPARATOR)
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.omitEmptyStrings()
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.trimResults()
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.split(setIds));
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try {
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final String basePath = getBasePathHDFS(isLookup);
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// <SET id="..." directory="..." latest="xxx"/>
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final String xquery = "for $x in collection('/db/DRIVER/ActionManagerSetDSResources/ActionManagerSetDSResourceType') "
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+
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"return <SET id='{$x//SET/@id/string()}' directory='{$x//SET/@directory/string()}' latest='{$x//LATEST/@id/string()}'/>";
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return Optional
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.ofNullable(isLookup.quickSearchProfile(xquery))
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.map(
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sets -> sets
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.stream()
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.map(ISClient::parseSetInfo)
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.filter(t -> ids.contains(t.getLeft()))
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.map(t -> buildDirectory(basePath, t))
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.collect(Collectors.toList()))
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.orElseThrow(() -> new IllegalStateException("empty set list"));
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} catch (ActionManagerException | ISLookUpException e) {
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throw new IllegalStateException("unable to query ActionSets info from the IS");
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}
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}
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private static Triple<String, String, String> parseSetInfo(String set) {
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try {
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final SAXReader reader = new SAXReader();
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reader.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
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Document doc = reader.read(new StringReader(set));
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return Triple
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.of(
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doc.valueOf("//SET/@id"),
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doc.valueOf("//SET/@directory"),
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doc.valueOf("//SET/@latest"));
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} catch (DocumentException | SAXException e) {
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throw new IllegalStateException(e);
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}
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}
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private String buildDirectory(String basePath, Triple<String, String, String> t) {
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return Joiner.on("/").join(basePath, t.getMiddle(), t.getRight());
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}
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private String getBasePathHDFS(ISLookUpService isLookup) throws ActionManagerException {
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return queryServiceProperty(isLookup, "basePath");
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}
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private String queryServiceProperty(ISLookUpService isLookup, final String propertyName)
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throws ActionManagerException {
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final String q = "for $x in /RESOURCE_PROFILE[.//RESOURCE_TYPE/@value='ActionManagerServiceResourceType'] return $x//SERVICE_PROPERTIES/PROPERTY[./@ key='"
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+ propertyName
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+ "']/@value/string()";
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log.debug("quering for service property: {}", q);
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try {
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final List<String> value = isLookup.quickSearchProfile(q);
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return Iterables.getOnlyElement(value);
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} catch (ISLookUpException e) {
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String msg = "Error accessing service profile, using query: " + q;
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log.error(msg, e);
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throw new ActionManagerException(msg, e);
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} catch (NoSuchElementException e) {
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String msg = "missing service property: " + propertyName;
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log.error(msg, e);
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throw new ActionManagerException(msg, e);
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} catch (IllegalArgumentException e) {
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String msg = "found more than one service property: " + propertyName;
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log.error(msg, e);
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throw new ActionManagerException(msg, e);
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}
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}
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}
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