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package eu.dnetlib.resolver.mdstore.plugin;
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import java.util.List;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.Callable;
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import com.mongodb.DBObject;
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import com.mongodb.client.MongoCollection;
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import eu.dnetlib.resolver.PIDResolver;
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import eu.dnetlib.resolver.model.CompletionStatus;
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import eu.dnetlib.resolver.model.ObjectRelation;
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import eu.dnetlib.resolver.model.PID;
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import eu.dnetlib.resolver.model.ResolvedObject;
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import eu.dnetlib.resolver.model.serializer.ResolverSerializer;
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import eu.dnetlib.resolver.parser.DMFResolverParser;
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import org.antlr.stringtemplate.StringTemplate;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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* Created by sandro on 9/22/16.
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*/
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public class RecordResolver implements Callable<Boolean> {
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private static final Log log = LogFactory.getLog(RecordResolver.class);
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private final ResolverSerializer serializer = new ResolverSerializer();
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private final DMFResolverParser parser = new DMFResolverParser();
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private List<PIDResolver> pluginResolver;
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private BlockingQueue<DBObject> inputQueue;
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private MongoCollection<DBObject> outputCollection;
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public String resolve(final String inputRecord) {
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final ResolvedObject inputObject = parser.parseObject(inputRecord);
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boolean shouldUpdate = false;
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if (inputObject.getCompletionStatus() == null || !inputObject.getCompletionStatus().equals(CompletionStatus.complete.toString())) {
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shouldUpdate = shouldUpdate || tryToResolveRecord(inputObject);
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}
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if (inputObject.getRelations() != null) {
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for (ObjectRelation rel : inputObject.getRelations()) {
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final String dnetId = tryToResolveRelation(rel.getTargetPID());
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if (dnetId != null && !StringUtils.isEmpty(dnetId)) {
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rel.setTargetPID(new PID(dnetId, "dnet"));
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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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public void setTemplate(final StringTemplate template) {
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serializer.setDmfTemplate(template);
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}
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private String tryToResolveRelation(final PID currentPid) {
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if (currentPid.getId() != null && currentPid.getId().contains("dli_resolver")) {
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return null;
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}
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for (PIDResolver resolver : pluginResolver) {
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final String currentIdentifier = resolver.retrieveDnetID(currentPid.getId(), currentPid.getType());
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if (currentIdentifier != null && !StringUtils.isBlank(currentIdentifier)) {
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return currentIdentifier;
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}
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}
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return null;
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}
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private boolean tryToResolveRecord(final ResolvedObject object) {
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for (PIDResolver resolver : pluginResolver) {
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final ResolvedObject resolvedObject = resolver.retrievePID(object.getPid(), object.getPidType());
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if (resolvedObject != null &&
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resolvedObject.getCompletionStatus() != null &&
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resolvedObject.getCompletionStatus().toString().equals(CompletionStatus.complete.toString())) {
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{
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object.setAuthors(resolvedObject.getAuthors());
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object.setTitles(resolvedObject.getTitles());
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object.setCompletionStatus(resolvedObject.getCompletionStatus());
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object.setDate(resolvedObject.getDate());
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object.getDatasourceProvenance().addAll(resolvedObject.getDatasourceProvenance());
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object.setType(resolvedObject.getType());
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return true;
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}
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}
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}
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return false;
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}
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public List<PIDResolver> getPluginResolver() {
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return pluginResolver;
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}
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public void setPluginResolver(final List<PIDResolver> pluginResolver) {
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this.pluginResolver = pluginResolver;
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}
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@Override
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public Boolean call() throws Exception {
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DBObject currentObject = inputQueue.take();
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while (currentObject != ResolverMDStorePlugin.DONE) {
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try {
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final String currentRecord = (String) currentObject.get("body");
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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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outputCollection.insertOne(currentObject);
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}
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currentObject = inputQueue.take();
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} catch (Throwable e) {
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log.error("Error on resolving objects ", 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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public BlockingQueue<DBObject> getInputQueue() {
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return inputQueue;
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}
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public void setInputQueue(final BlockingQueue<DBObject> inputQueue) {
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this.inputQueue = inputQueue;
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}
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public MongoCollection<DBObject> getOutputCollection() {
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return outputCollection;
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}
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public void setOutputCollection(final MongoCollection<DBObject> outputCollection) {
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this.outputCollection = outputCollection;
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}
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}
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