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package eu.dnetlib.pid.resolver.mdstore.plugin;
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import com.mongodb.DBObject;
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import com.mongodb.client.MongoCollection;
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import eu.dnetlib.pid.resolver.PIDResolver;
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import eu.dnetlib.pid.resolver.model.ObjectRelation;
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import eu.dnetlib.pid.resolver.model.ObjectType;
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import eu.dnetlib.pid.resolver.model.PID;
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import eu.dnetlib.pid.resolver.model.ResolvedObject;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.BlockingQueue;
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import java.util.function.Function;
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public abstract class AbstractRecordResolver implements RecordResolver {
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protected static final Log log = LogFactory.getLog(AbstractRecordResolver.class);
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protected final Long timestamp;
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protected List<PIDResolver> pluginResolver;
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protected BlockingQueue<DBObject> inputQueue;
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protected MongoCollection<DBObject> outputCollection;
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protected ResolverSerializer serializer;
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protected boolean offline;
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public AbstractRecordResolver(final long ts) {
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this.timestamp = ts;
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}
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protected String resolveRelations(String inputRecord, ResolvedObject inputObject, boolean shouldUpdate, Function<String,String> getInverseRelation) {
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if (inputObject.getRelations() != null) {
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for (ObjectRelation rel : inputObject.getRelations()) {
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final Map<String, ObjectType> resolvedRelation = tryToResolveRelation(rel.getTargetPID());
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if (resolvedRelation != null && !resolvedRelation.isEmpty()) {
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resolvedRelation.entrySet()
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.forEach(e -> {
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rel.setTargetPID(new PID(e.getKey(), "dnet"));
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rel.setTargetType(e.getValue());
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rel.setInverseRelation(getInverseRelation.apply(rel.getRelationSemantics()));
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});
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shouldUpdate = true;
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}
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}
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if (shouldUpdate) {
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final String newXML = serializer.serializeReplacingXML(inputRecord, inputObject);
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return newXML;
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}
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}
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return null;
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}
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@Override
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public Boolean call() throws Exception {
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log.info("START HERE! Ressolving offline:"+offline);
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DBObject currentObject = inputQueue.take();
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int i = 0;
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String currentRecord = null;
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double sumTotal = 0;
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while (currentObject != ResolverMDStorePlugin.DONE) {
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try {
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currentRecord = (String) currentObject.get("body");
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if (currentObject.get("resolved_ts") == null) {
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final double start = System.currentTimeMillis();
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final String resolvedRecord = resolve(currentRecord);
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if (resolvedRecord != null) {
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currentObject.put("body", resolvedRecord);
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currentObject.removeField("_id");
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currentObject.put("resolved_ts", timestamp);
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outputCollection.insertOne(currentObject);
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}
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final double total = System.currentTimeMillis() - start;
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sumTotal += total;
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}
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currentObject = inputQueue.take();
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if (i++ % 100 == 0) {
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log.debug(Thread.currentThread().getId() + " total object resolved: " + i + "in average time " + (sumTotal / 100) + "ms");
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sumTotal = 0;
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}
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} catch (Throwable e) {
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log.error("Error on resolving objects " + currentRecord, e);
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return false;
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}
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}
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if (currentObject == ResolverMDStorePlugin.DONE) {
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inputQueue.put(currentObject);
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}
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return true;
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}
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protected abstract Map<String, ObjectType> tryToResolveRelation(PID targetPID);
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public void setOffline(boolean offline) {
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this.offline = offline;
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}
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}
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