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package eu.dnetlib.resolver.mdstore.plugin;
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import java.util.HashMap;
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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.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.dli.DLIUtils;
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import eu.dnetlib.dli.resolver.PIDResolver;
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import eu.dnetlib.dli.resolver.model.*;
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import eu.dnetlib.dli.resolver.model.serializer.ResolverSerializer;
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import eu.dnetlib.miscutils.collections.Pair;
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import eu.dnetlib.resolver.parser.DLIParser;
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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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import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.put;
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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 DLIParser parser = new DLIParser();
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private final Long timestamp;
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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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private ResolverSerializer serializer;
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public RecordResolver(final long ts) {
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this.timestamp = Long.valueOf(ts);
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}
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private String resolve(final String inputRecord) {
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final ResolvedObject inputObject = parser.parse(inputRecord);
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if (inputObject != null && StringUtils.isNoneBlank(inputObject.getResolvedDate()))
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return null;
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if (inputObject != null && !StringUtils.isBlank(inputObject.getPid())) {
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log.debug("trying to resolve " + inputObject.getPid());
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}
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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 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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});
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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 Map<String, ObjectType> 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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log.debug("tryToResolveRelation " + currentPid);
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for (PIDResolver resolver : pluginResolver) {
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final ResolvedObject currentIdentifier = resolver.retrievePID(currentPid.getId(), currentPid.getType());
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if (currentIdentifier != null && !StringUtils.isBlank(currentIdentifier.getPid()) && currentIdentifier.getPid().toLowerCase().equals(currentPid.getId().toLowerCase())) {
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final HashMap<String, ObjectType> result = new HashMap<>();
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result.put("dli_resolver::" + DLIUtils.generateIdentifier(currentIdentifier.getPid(), currentIdentifier.getPidType()),
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currentIdentifier.getType());
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return result;
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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.setDescription(resolvedObject.getDescription());
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object.setSubjects(resolvedObject.getSubjects());
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object.setType(resolvedObject.getType());
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log.debug("Record Resolved by " + resolver.getClass().getCanonicalName() + " PID: " + object.getPid());
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return true;
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}
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}
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}
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log.debug("Record NOT Resolved PID: " + object.getPid());
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return false;
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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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log.info("START HERE!");
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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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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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public void setSerializer(final ResolverSerializer serializer) {
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final ResolverSerializer tmp = new ResolverSerializer();
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tmp.setPmfTemplate(new StringTemplate(serializer.getPmfTemplate().getTemplate()));
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tmp.setDmfTemplate(new StringTemplate(serializer.getDmfTemplate().getTemplate()));
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tmp.setScholixTemplate(new StringTemplate(serializer.getScholixTemplate().getTemplate()));
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this.serializer = tmp;
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}
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}
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