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package eu.dnetlib.data.mdstore.modular.mongodb;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import com.google.common.collect.Lists;
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import com.mongodb.BasicDBList;
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import com.mongodb.BasicDBObject;
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import com.mongodb.DBObject;
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import com.mongodb.WriteConcern;
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import com.mongodb.client.FindIterable;
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import com.mongodb.client.MongoCollection;
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import com.mongodb.client.MongoDatabase;
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import com.mongodb.client.MongoIterable;
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import com.mongodb.client.model.Filters;
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import com.mongodb.client.model.IndexOptions;
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import com.mongodb.client.model.UpdateOptions;
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import eu.dnetlib.data.mdstore.MDStoreServiceException;
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import eu.dnetlib.data.mdstore.modular.connector.*;
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import eu.dnetlib.data.mdstore.modular.mongodb.utils.MDStoreUtils;
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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 org.bson.conversions.Bson;
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import org.joda.time.DateTime;
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import org.joda.time.Days;
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import org.springframework.beans.factory.annotation.Required;
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/**
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* The Class MDStoreTransactionManager.
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*/
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public class MDStoreTransactionManagerImpl implements MDStoreTransactionManager {
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/** The Constant log. */
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private static final Log log = LogFactory.getLog(MDStoreTransactionManagerImpl.class);
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/**
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* The table name.
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*/
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private static String TABLE_NAME = "metadataManager";
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/** The max number of concurrent transactions per mdstore. */
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private int maxTransactions = 1;
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/**
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* The db.
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*/
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private MongoDatabase db;
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/**
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* The manager table.
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*/
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private MongoCollection<DBObject> managerTable;
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/** The expired days. */
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private int expiredDays;
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private final IndexOptions options = new IndexOptions().background(true);
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/**
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* Bootstrap manager.
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*/
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private void bootstrapManager() {
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log.debug("Bootstrap Manager start");
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final MongoCollection<DBObject> metadataColl = db.getCollection("metadata", DBObject.class);
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final FindIterable<DBObject> values = metadataColl.find();
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this.setManagerTable(db.getCollection(TABLE_NAME, DBObject.class));
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for (DBObject object : values) {
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final String id = (String) object.get("mdId");
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String newId = id;
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if (id.contains("_")) {
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newId = StringUtils.substringBefore(id, "_");
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}
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final BasicDBObject input = new BasicDBObject();
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input.put("mdId", id);
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input.put("currentId", newId);
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input.put("expiring", new String[] {});
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input.put("transactions", new String[] {});
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getManagerTable().insertOne(input);
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log.debug(String.format("Added %s to Metadata Manager data structure", id));
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}
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final BasicDBObject ensureIndex = new BasicDBObject();
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ensureIndex.put("mdId", 1);
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log.debug("Create index in MetadaManager ");
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this.getManagerTable().createIndex(ensureIndex, options);
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}
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/**
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* Gets the DBObject describing an mdstore. null if there is no mdstore with the given id.
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*
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* @param mdstoreID the mdStore identifier
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* @return DBObject or null
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*/
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private DBObject getMDStoreAsDBObject(final String mdstoreID) throws MDStoreServiceException {
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final BasicDBObject query = new BasicDBObject();
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query.put("mdId", mdstoreID);
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final FindIterable<DBObject> it = this.getManagerTable().find(query);
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return it.first();
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}
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/**
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* Verify consistency.
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*
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* @throws MDStoreServiceException
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* the MD store service exception
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*/
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@Override
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public void verifyConsistency() throws MDStoreServiceException {
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if (this.getManagerTable() == null) {
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if (!Lists.newArrayList(db.listCollectionNames()).contains(TABLE_NAME))
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bootstrapManager();
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else {
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this.setManagerTable(db.getCollection(TABLE_NAME, DBObject.class));
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}
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}
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if (this.getManagerTable() == null) throw new MDStoreServiceException("Something bad happen, unable to create managerTable");
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}
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/**
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* {@inheritDoc}
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*
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* @see eu.dnetlib.data.mdstore.modular.connector.MDStoreTransactionManager#createMDStore(java.lang.String)
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*/
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@Override
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public void createMDStore(final String mdId) throws MDStoreServiceException {
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log.debug("Creating new mdstore");
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verifyConsistency();
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String newId = mdId;
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if (mdId.contains("_")) {
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newId = StringUtils.substringBefore(mdId, "_");
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}
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final BasicDBObject instance = new BasicDBObject();
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instance.put("mdId", mdId);
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instance.put("currentId", newId);
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instance.put("expiring", new String[] {});
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getManagerTable().insertOne(instance);
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}
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/**
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* {@inheritDoc}
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*
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* @see eu.dnetlib.data.mdstore.modular.connector.MDStoreTransactionManager#dropMDStore(java.lang.String)
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*/
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@Override
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public void dropMDStore(final String mdId) throws MDStoreServiceException {
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verifyConsistency();
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log.debug("Droping MDStore: " + mdId);
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final BasicDBObject query = new BasicDBObject();
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query.put("mdId", mdId);
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final DBObject dropped = this.getManagerTable().findOneAndDelete(query);
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garbage();
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final String collectionName = (String) dropped.get("currentId");
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this.db.getCollection(collectionName).drop();
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this.db.getCollection("discarded-" + collectionName).drop();
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}
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/**
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* {@inheritDoc}
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*
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* @see eu.dnetlib.data.mdstore.modular.connector.MDStoreTransactionManager#getMDStoreCollection(java.lang.String)
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*/
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@Override
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public String getMDStoreCollection(final String mdId) throws MDStoreServiceException {
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verifyConsistency();
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DBObject mdstoreInfo = getMDStoreAsDBObject(mdId);
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if (mdstoreInfo != null)
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return (String) mdstoreInfo.get("currentId");
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else return null;
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}
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/**
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* {@inheritDoc}
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*
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* @see eu.dnetlib.data.mdstore.modular.connector.MDStoreTransactionManager#startTransaction(java.lang.String, boolean)
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*/
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@Override
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public String startTransaction(final String mdId, final boolean refresh) throws MDStoreServiceException {
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verifyConsistency();
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log.info("Start transaction for metadata store " + mdId);
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final DBObject mdstoreInfo = getMDStoreAsDBObject(mdId);
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if (mdstoreInfo == null) throw new MDStoreServiceException("Error, unable to find Mdstore with Id " + mdId);
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String idCreation = StringUtils.substringBefore(mdId, "_");
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idCreation = idCreation + "::" + System.currentTimeMillis();
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BasicDBList values;
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if (mdstoreInfo.containsField("transactions")) {
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values = (BasicDBList) mdstoreInfo.get("transactions");
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if (values.size() > getMaxTransactions())
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throw new MDStoreServiceException("Cannot create more than " + getMaxTransactions() + " transactions, found: " + values.size() + ", mdId:"
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+ mdId);
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} else {
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values = new BasicDBList();
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}
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final BasicDBObject transactionMetadata = new BasicDBObject();
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transactionMetadata.put("id", idCreation);
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transactionMetadata.put("refresh", refresh);
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transactionMetadata.put("date", new Date());
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values.add(transactionMetadata);
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mdstoreInfo.put("transactions", values);
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this.getManagerTable().findOneAndReplace(new BasicDBObject("_id", mdstoreInfo.get("_id")), mdstoreInfo);
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return idCreation;
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}
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/**
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* {@inheritDoc}
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*
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* @see eu.dnetlib.data.mdstore.modular.connector.MDStoreTransactionManager#commit(java.lang.String, java.lang.String,
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* eu.dnetlib.data.mdstore.modular.connector.MDStore)
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*/
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@Override
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public boolean commit(final String transactionId, final String mdstoreId, final MDStore current) throws MDStoreServiceException {
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verifyConsistency();
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final DBObject mdstoreInfo = getMDStoreAsDBObject(mdstoreId);
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if (mdstoreInfo == null) throw new MDStoreServiceException("Error, unable to find Mdstore with Id " + mdstoreId);
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final BasicDBList transactions = (BasicDBList) mdstoreInfo.get("transactions");
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final DBObject transaction = findTransaction(transactions, transactionId);
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if (transaction == null) throw new MDStoreServiceException("Error, unable to find transaction with Id " + transactionId);
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final boolean refresh = (Boolean) transaction.get("refresh");
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transactions.remove(transaction);
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final String oldId = (String) mdstoreInfo.get("currentId");
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if (refresh) {
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mdstoreInfo.put("currentId", transactionId);
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final BasicDBList stillUsed = (BasicDBList) mdstoreInfo.get("expiring");
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if (stillUsed.size() == 0) {
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db.getCollection(oldId).drop();
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db.getCollection("discarded-" + oldId).drop();
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}
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log.debug("Replaced collection ");
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} else {
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log.debug("commit incremental ");
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updateIncremental(transactionId, oldId);
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db.getCollection(transactionId).drop();
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db.getCollection("discarded-" + transactionId).drop();
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}
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this.getManagerTable().findOneAndReplace(new BasicDBObject("_id", mdstoreInfo.get("_id")), mdstoreInfo);
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log.info("Committed transaction for metadata store " + mdstoreId);
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return true;
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}
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/**
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* Find transaction.
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*
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* @param transactions
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* the transactions
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* @param transactionId
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* the transaction id
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* @return the DB object
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*/
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private DBObject findTransaction(final BasicDBList transactions, final String transactionId) {
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if (transactions.size() == 0) return null;
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for (Object tx : transactions) {
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final BasicDBObject transaction = (BasicDBObject) tx;
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final String id = (String) transaction.get("id");
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if (transactionId.equals(id)) return transaction;
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}
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return null;
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}
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/**
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* Gets the db.
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*
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* @return the db
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*/
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public MongoDatabase getDb() {
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return db;
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}
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/**
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* Sets the db.
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*
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* @param db
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* the db to set
|
| 277 |
|
|
*/
|
| 278 |
|
|
@Required
|
| 279 |
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|
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|
public void setDb(final MongoDatabase db) {
|
| 280 |
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|
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|
this.db = db;
|
| 281 |
|
|
}
|
| 282 |
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|
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|
|
| 283 |
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|
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|
/**
|
| 284 |
|
|
* {@inheritDoc}
|
| 285 |
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|
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|
*
|
| 286 |
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|
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|
* @see eu.dnetlib.data.mdstore.modular.connector.MDStoreTransactionManager#readMdStore(java.lang.String)
|
| 287 |
|
|
*/
|
| 288 |
|
|
@Override
|
| 289 |
|
|
public String readMdStore(final String mdStoreId) throws MDStoreServiceException {
|
| 290 |
|
|
verifyConsistency();
|
| 291 |
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|
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|
final DBObject mdstoreInfo = getMDStoreAsDBObject(mdStoreId);
|
| 292 |
|
|
if (mdstoreInfo == null) throw new MDStoreServiceException("Error, unable to find Mdstore with Id " + mdStoreId);
|
| 293 |
|
|
final String currentId = (String) mdstoreInfo.get("currentId");
|
| 294 |
|
|
final BasicDBList values = (BasicDBList) mdstoreInfo.get("expiring");
|
| 295 |
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|
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|
updateMdstoreUsed(values, currentId);
|
| 296 |
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|
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|
this.getManagerTable().findOneAndReplace(new BasicDBObject("_id", mdstoreInfo.get("_id")), mdstoreInfo);
|
| 297 |
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|
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|
return currentId;
|
| 298 |
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|
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|
|
| 299 |
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|
}
|
| 300 |
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|
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|
|
| 301 |
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|
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|
|
| 302 |
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/**
|
| 303 |
|
|
* Update mdstore used.
|
| 304 |
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|
*
|
| 305 |
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|
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|
* @param values
|
| 306 |
|
|
* the values
|
| 307 |
|
|
* @param mdId
|
| 308 |
|
|
* the md id
|
| 309 |
|
|
*/
|
| 310 |
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|
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|
private void updateMdstoreUsed(final BasicDBList values, final String mdId) {
|
| 311 |
|
|
if (values.size() > 0) {
|
| 312 |
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|
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|
for (Object value : values) {
|
| 313 |
|
|
final DBObject obj = (DBObject) value;
|
| 314 |
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|
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|
final String id = (String) obj.get("id");
|
| 315 |
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|
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|
if (mdId.equals(id)) {
|
| 316 |
|
|
obj.put("lastRead", new Date());
|
| 317 |
|
|
return;
|
| 318 |
|
|
}
|
| 319 |
|
|
}
|
| 320 |
|
|
}
|
| 321 |
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|
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|
final BasicDBObject readStore = new BasicDBObject();
|
| 322 |
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|
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|
readStore.put("id", mdId);
|
| 323 |
|
|
readStore.put("lastRead", new Date());
|
| 324 |
|
|
values.add(readStore);
|
| 325 |
|
|
}
|
| 326 |
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|
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|
|
| 327 |
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|
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|
/**
|
| 328 |
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|
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|
* Gets the manager table.
|
| 329 |
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|
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|
*
|
| 330 |
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|
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|
* @return the managerTable
|
| 331 |
|
|
*/
|
| 332 |
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|
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|
public MongoCollection<DBObject> getManagerTable() {
|
| 333 |
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|
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|
return managerTable;
|
| 334 |
|
|
}
|
| 335 |
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|
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|
|
| 336 |
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|
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|
/**
|
| 337 |
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|
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|
* Sets the manager table.
|
| 338 |
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|
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|
*
|
| 339 |
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|
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|
* @param managerTable
|
| 340 |
|
|
* the managerTable to set
|
| 341 |
|
|
*/
|
| 342 |
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|
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|
public void setManagerTable(final MongoCollection<DBObject> managerTable) {
|
| 343 |
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|
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|
this.managerTable = managerTable;
|
| 344 |
|
|
}
|
| 345 |
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|
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|
|
| 346 |
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|
sandro.lab
|
/*
|
| 347 |
|
|
* (non-Javadoc)
|
| 348 |
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|
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|
*
|
| 349 |
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|
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|
* @see eu.dnetlib.data.mdstore.modular.connector.MDStoreTransactionManager#getInfoForCurrentMdStore(java.lang.String)
|
| 350 |
|
|
*/
|
| 351 |
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|
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|
@Override
|
| 352 |
|
|
public MDStoreManagerInfo getInfoForCurrentMdStore(final String mdStoreId) throws MDStoreServiceException {
|
| 353 |
|
|
verifyConsistency();
|
| 354 |
41551
|
alessia.ba
|
final DBObject mdstoreInfo = getMDStoreAsDBObject(mdStoreId);
|
| 355 |
|
|
if (mdstoreInfo == null) throw new MDStoreServiceException("Error, unable to find Mdstore with Id " + mdStoreId);
|
| 356 |
33792
|
claudio.at
|
final MDStoreManagerInfo result = new MDStoreManagerInfo();
|
| 357 |
41551
|
alessia.ba
|
result.setCurrentId((String) mdstoreInfo.get("currentId"));
|
| 358 |
|
|
result.setMdId((String) mdstoreInfo.get("mdId"));
|
| 359 |
|
|
final BasicDBList values = (BasicDBList) mdstoreInfo.get("expiring");
|
| 360 |
50676
|
claudio.at
|
for (Object v : values) {
|
| 361 |
33792
|
claudio.at
|
final MDStoreExpiredInfo stillused = new MDStoreExpiredInfo();
|
| 362 |
50676
|
claudio.at
|
final DBObject value = (DBObject) v;
|
| 363 |
33589
|
sandro.lab
|
stillused.setId((String) value.get("id"));
|
| 364 |
|
|
stillused.setLastRead((Date) value.get("lastRead"));
|
| 365 |
|
|
result.addExpiredItem(stillused);
|
| 366 |
|
|
}
|
| 367 |
41551
|
alessia.ba
|
final BasicDBList transactions = (BasicDBList) mdstoreInfo.get("transactions");
|
| 368 |
33589
|
sandro.lab
|
if (transactions != null) {
|
| 369 |
50676
|
claudio.at
|
for (Object tx : transactions) {
|
| 370 |
33792
|
claudio.at
|
final MDStoreTransactionInfo transaction = new MDStoreTransactionInfo();
|
| 371 |
50676
|
claudio.at
|
final DBObject value = (DBObject) tx;
|
| 372 |
33792
|
claudio.at
|
final String transactionId = (String) value.get("id");
|
| 373 |
33589
|
sandro.lab
|
transaction.setId(transactionId);
|
| 374 |
|
|
transaction.setDate((Date) value.get("date"));
|
| 375 |
|
|
transaction.setRefresh((Boolean) value.get("refresh"));
|
| 376 |
|
|
transaction.setSize(db.getCollection(transactionId).count());
|
| 377 |
|
|
result.addTransactionInfo(transaction);
|
| 378 |
|
|
}
|
| 379 |
|
|
}
|
| 380 |
|
|
return result;
|
| 381 |
|
|
}
|
| 382 |
28055
|
sandro.lab
|
|
| 383 |
34000
|
sandro.lab
|
/*
|
| 384 |
|
|
* (non-Javadoc)
|
| 385 |
36324
|
sandro.lab
|
*
|
| 386 |
34000
|
sandro.lab
|
* @see eu.dnetlib.data.mdstore.modular.connector.MDStoreTransactionManager#dropUsed(java.lang.String, java.lang.String)
|
| 387 |
|
|
*/
|
| 388 |
33589
|
sandro.lab
|
@Override
|
| 389 |
|
|
public Boolean dropUsed(final String mdId, final String idToDrop) throws MDStoreServiceException {
|
| 390 |
|
|
verifyConsistency();
|
| 391 |
41551
|
alessia.ba
|
final DBObject mdstoreInfo = getMDStoreAsDBObject(mdId);
|
| 392 |
|
|
if (mdstoreInfo == null) throw new MDStoreServiceException("Error, unable to find Mdstore with Id " + mdId);
|
| 393 |
|
|
return dropStore(mdstoreInfo, idToDrop, "expiring");
|
| 394 |
|
|
}
|
| 395 |
|
|
|
| 396 |
|
|
private boolean dropStore(DBObject mdstoreInfo, final String idToDrop, String transactionListName) throws MDStoreServiceException {
|
| 397 |
|
|
final BasicDBList transactionList = (BasicDBList) mdstoreInfo.get(transactionListName);
|
| 398 |
|
|
for (int i = 0; i < transactionList.size(); i++) {
|
| 399 |
|
|
final DBObject value = (DBObject) transactionList.get(i);
|
| 400 |
33792
|
claudio.at
|
final String currentUsedId = (String) value.get("id");
|
| 401 |
33589
|
sandro.lab
|
if (currentUsedId.equals(idToDrop)) {
|
| 402 |
|
|
db.getCollection(idToDrop).drop();
|
| 403 |
|
|
db.getCollection("discarded-" + idToDrop).drop();
|
| 404 |
41551
|
alessia.ba
|
transactionList.remove(value);
|
| 405 |
|
|
mdstoreInfo.put(transactionListName, transactionList);
|
| 406 |
|
|
this.getManagerTable().findOneAndReplace(new BasicDBObject("_id", mdstoreInfo.get("_id")), mdstoreInfo);
|
| 407 |
33589
|
sandro.lab
|
return true;
|
| 408 |
|
|
}
|
| 409 |
|
|
}
|
| 410 |
41551
|
alessia.ba
|
throw new MDStoreServiceException("Error, unable to drop collection " + idToDrop);
|
| 411 |
33589
|
sandro.lab
|
}
|
| 412 |
28055
|
sandro.lab
|
|
| 413 |
34000
|
sandro.lab
|
/*
|
| 414 |
|
|
* (non-Javadoc)
|
| 415 |
36324
|
sandro.lab
|
*
|
| 416 |
34000
|
sandro.lab
|
* @see eu.dnetlib.data.mdstore.modular.connector.MDStoreTransactionManager#garbage()
|
| 417 |
|
|
*/
|
| 418 |
33589
|
sandro.lab
|
@Override
|
| 419 |
|
|
public void garbage() throws MDStoreServiceException {
|
| 420 |
|
|
verifyConsistency();
|
| 421 |
|
|
log.info("Start garbage collection of MdStore");
|
| 422 |
41551
|
alessia.ba
|
final FindIterable<DBObject> it = this.managerTable.find();
|
| 423 |
33589
|
sandro.lab
|
int totalDeleted = 0;
|
| 424 |
41551
|
alessia.ba
|
for (DBObject currentObject : it){
|
| 425 |
34000
|
sandro.lab
|
if (log.isDebugEnabled()) {
|
| 426 |
41551
|
alessia.ba
|
log.debug("start to check id: " + currentObject.get("currentId"));
|
| 427 |
34000
|
sandro.lab
|
}
|
| 428 |
|
|
garbageExpiring(currentObject, (String) currentObject.get("currentId"));
|
| 429 |
|
|
garbageTransactions(currentObject, (String) currentObject.get("currentId"));
|
| 430 |
41551
|
alessia.ba
|
this.getManagerTable().findOneAndReplace(new BasicDBObject("_id", currentObject.get("_id")), currentObject);
|
| 431 |
34000
|
sandro.lab
|
}
|
| 432 |
|
|
|
| 433 |
34031
|
sandro.lab
|
// DELETING Collection that are not in the metadataManager table
|
| 434 |
41551
|
alessia.ba
|
MongoIterable<String> collections = this.db.listCollectionNames();
|
| 435 |
34031
|
sandro.lab
|
for (String collection : collections) {
|
| 436 |
50676
|
claudio.at
|
if ((collection.length() > 30) && (!collection.contains("discarded-"))) {
|
| 437 |
34031
|
sandro.lab
|
final DBObject item = getMetadataObjectForCollections(collection);
|
| 438 |
34033
|
sandro.lab
|
|
| 439 |
34031
|
sandro.lab
|
if (shouldDelete(collection, item)) {
|
| 440 |
|
|
if (log.isDebugEnabled()) {
|
| 441 |
|
|
log.debug("delete collection: " + collection + " from mongo");
|
| 442 |
|
|
}
|
| 443 |
|
|
db.getCollection(collection).drop();
|
| 444 |
|
|
db.getCollection("discarded-" + collection).drop();
|
| 445 |
|
|
if (log.isDebugEnabled()) {
|
| 446 |
|
|
log.debug("delete collection: discarded-" + collection + " from mongo");
|
| 447 |
|
|
}
|
| 448 |
|
|
}
|
| 449 |
|
|
}
|
| 450 |
|
|
}
|
| 451 |
|
|
|
| 452 |
34000
|
sandro.lab
|
log.info("Complete garbage collection of MdStore, total store deleted: " + totalDeleted);
|
| 453 |
|
|
}
|
| 454 |
|
|
|
| 455 |
34031
|
sandro.lab
|
private DBObject getMetadataObjectForCollections(final String collectionName) {
|
| 456 |
34605
|
alessia.ba
|
if (collectionName == null) return null;
|
| 457 |
34031
|
sandro.lab
|
final String postfix = "_TURTdG9yZURTUmVzb3VyY2VzL01EU3RvcmVEU1Jlc291cmNlVHlwZQ==";
|
| 458 |
50676
|
claudio.at
|
final String tmp = collectionName.contains("discarded-") ? StringUtils.substringAfter(collectionName, "discarded-") : collectionName;
|
| 459 |
34031
|
sandro.lab
|
final String collectionNameCleaned = StringUtils.substringBefore(tmp, "::") + postfix;
|
| 460 |
|
|
|
| 461 |
41551
|
alessia.ba
|
//DBObject query = QueryBuilder.start("mdId").is(collectionNameCleaned).get();
|
| 462 |
|
|
Bson query = Filters.eq("mdId", collectionNameCleaned);
|
| 463 |
|
|
return this.managerTable.find(query).first();
|
| 464 |
|
|
|
| 465 |
34031
|
sandro.lab
|
}
|
| 466 |
|
|
|
| 467 |
|
|
private boolean shouldDelete(final String collectionName, final DBObject metadataManagerInstance) {
|
| 468 |
34943
|
sandro.lab
|
log.debug("should delete instance "+metadataManagerInstance);
|
| 469 |
36324
|
sandro.lab
|
if((metadataManagerInstance== null) || (metadataManagerInstance.get("currentId")== null)){
|
| 470 |
34943
|
sandro.lab
|
log.debug("the instance has not currentID");
|
| 471 |
|
|
return true;
|
| 472 |
|
|
}
|
| 473 |
34031
|
sandro.lab
|
String currentId = (String) metadataManagerInstance.get("currentId");
|
| 474 |
34605
|
alessia.ba
|
if (collectionName.equals(currentId)) return false;
|
| 475 |
34031
|
sandro.lab
|
BasicDBList expiringList = (BasicDBList) metadataManagerInstance.get("expiring");
|
| 476 |
50676
|
claudio.at
|
if (findInList(expiringList, collectionName, "id")) return false;
|
| 477 |
34031
|
sandro.lab
|
BasicDBList transactionsList = (BasicDBList) metadataManagerInstance.get("transactions");
|
| 478 |
50676
|
claudio.at
|
return !findInList(transactionsList, collectionName, "id");
|
| 479 |
34031
|
sandro.lab
|
}
|
| 480 |
|
|
|
| 481 |
|
|
private boolean findInList(final BasicDBList list, final String object, final String tagname) {
|
| 482 |
34605
|
alessia.ba
|
if (list == null) return false;
|
| 483 |
50676
|
claudio.at
|
for (Object o : list) {
|
| 484 |
|
|
DBObject currentObject = (DBObject) o;
|
| 485 |
34031
|
sandro.lab
|
final String id = (String) currentObject.get(tagname);
|
| 486 |
34605
|
alessia.ba
|
if (id.equals(object)) return true;
|
| 487 |
34031
|
sandro.lab
|
}
|
| 488 |
|
|
return false;
|
| 489 |
|
|
}
|
| 490 |
|
|
|
| 491 |
34000
|
sandro.lab
|
/**
|
| 492 |
|
|
* Delete.
|
| 493 |
36324
|
sandro.lab
|
*
|
| 494 |
34000
|
sandro.lab
|
* @param list
|
| 495 |
|
|
* the list
|
| 496 |
|
|
* @param toRemove
|
| 497 |
|
|
* the to remove
|
| 498 |
|
|
*/
|
| 499 |
|
|
private void delete(final BasicDBList list, final List<DBObject> toRemove) {
|
| 500 |
|
|
|
| 501 |
|
|
for (final DBObject obj : toRemove) {
|
| 502 |
|
|
if (log.isDebugEnabled()) {
|
| 503 |
|
|
log.debug("deleting " + obj);
|
| 504 |
|
|
}
|
| 505 |
|
|
list.remove(obj);
|
| 506 |
|
|
}
|
| 507 |
|
|
}
|
| 508 |
|
|
|
| 509 |
|
|
/**
|
| 510 |
|
|
* Garbage transactions.
|
| 511 |
36324
|
sandro.lab
|
*
|
| 512 |
34000
|
sandro.lab
|
* @param currentObject
|
| 513 |
|
|
* the current object
|
| 514 |
|
|
* @param currentId
|
| 515 |
|
|
* the current id
|
| 516 |
|
|
*/
|
| 517 |
|
|
private void garbageTransactions(final DBObject currentObject, final String currentId) {
|
| 518 |
|
|
if (log.isDebugEnabled()) {
|
| 519 |
|
|
log.debug("Start garbage transactions ");
|
| 520 |
|
|
}
|
| 521 |
|
|
|
| 522 |
|
|
final BasicDBList expiring = (BasicDBList) currentObject.get("transactions");
|
| 523 |
34605
|
alessia.ba
|
if ((expiring == null) || (expiring.size() <= getMaxTransactions())) return;
|
| 524 |
34000
|
sandro.lab
|
|
| 525 |
|
|
List<DBObject> expiringList = Lists.newArrayList();
|
| 526 |
|
|
|
| 527 |
50676
|
claudio.at
|
for (Object o : expiring) {
|
| 528 |
|
|
final DBObject cobj = (DBObject) o;
|
| 529 |
34000
|
sandro.lab
|
if (cobj != null) {
|
| 530 |
50676
|
claudio.at
|
expiringList.add((DBObject) o);
|
| 531 |
34000
|
sandro.lab
|
}
|
| 532 |
|
|
|
| 533 |
|
|
}
|
| 534 |
|
|
|
| 535 |
50676
|
claudio.at
|
expiringList.sort(MDStoreUtils.getComparatorOnDate());
|
| 536 |
34000
|
sandro.lab
|
|
| 537 |
|
|
List<DBObject> toRemove = Lists.newArrayList();
|
| 538 |
|
|
int i = 0;
|
| 539 |
|
|
|
| 540 |
|
|
// We should remove the k item less recent
|
| 541 |
|
|
// where k = numberOftotalTransaction - maxNumberOfTransaction
|
| 542 |
|
|
// k = numberOfItemToRemove
|
| 543 |
|
|
|
| 544 |
34605
|
alessia.ba
|
while (((expiringList.size() - toRemove.size()) > getMaxTransactions()) || (i < expiringList.size())) {
|
| 545 |
34000
|
sandro.lab
|
DBObject currentObj = expiringList.get(i++);
|
| 546 |
|
|
String objectId = (String) currentObj.get("id");
|
| 547 |
|
|
if (!objectId.equals(currentId)) {
|
| 548 |
|
|
if (log.isDebugEnabled()) {
|
| 549 |
|
|
log.debug("delete collection: " + objectId + " from mongo");
|
| 550 |
33589
|
sandro.lab
|
}
|
| 551 |
34000
|
sandro.lab
|
db.getCollection(objectId).drop();
|
| 552 |
|
|
db.getCollection("discarded-" + objectId).drop();
|
| 553 |
|
|
if (log.isDebugEnabled()) {
|
| 554 |
|
|
log.debug("delete collection: discarded-" + objectId + " from mongo");
|
| 555 |
|
|
}
|
| 556 |
|
|
toRemove.add(currentObj);
|
| 557 |
|
|
} else {
|
| 558 |
|
|
if (log.isDebugEnabled()) {
|
| 559 |
|
|
log.debug("Cannot remove transaction " + objectId + " because is the currentId: " + currentId);
|
| 560 |
|
|
}
|
| 561 |
|
|
}
|
| 562 |
|
|
}
|
| 563 |
28055
|
sandro.lab
|
|
| 564 |
34000
|
sandro.lab
|
delete(expiring, toRemove);
|
| 565 |
|
|
log.info("Deleted " + toRemove.size() + " transactions, mdStore Id:" + currentObject.get("mdId"));
|
| 566 |
|
|
}
|
| 567 |
|
|
|
| 568 |
|
|
/**
|
| 569 |
|
|
* Garbage expiring.
|
| 570 |
36324
|
sandro.lab
|
*
|
| 571 |
34000
|
sandro.lab
|
* @param currentObject
|
| 572 |
|
|
* the current object
|
| 573 |
|
|
* @param currentId
|
| 574 |
|
|
* the current id
|
| 575 |
|
|
*/
|
| 576 |
|
|
private void garbageExpiring(final DBObject currentObject, final String currentId) {
|
| 577 |
|
|
if (log.isDebugEnabled()) {
|
| 578 |
|
|
log.debug("Start to search expiring mdstores for id: " + currentObject.get("mdId"));
|
| 579 |
|
|
}
|
| 580 |
|
|
final BasicDBList expiring = (BasicDBList) currentObject.get("expiring");
|
| 581 |
|
|
final List<DBObject> toRemove = Lists.newArrayList();
|
| 582 |
|
|
if (log.isDebugEnabled()) {
|
| 583 |
|
|
if (expiring == null) {
|
| 584 |
|
|
log.debug("expiring list is null");
|
| 585 |
|
|
} else {
|
| 586 |
|
|
log.debug("expiring list size is :" + expiring.size());
|
| 587 |
33589
|
sandro.lab
|
}
|
| 588 |
34000
|
sandro.lab
|
}
|
| 589 |
34605
|
alessia.ba
|
if ((expiring == null) || (expiring.size() == 0)) {
|
| 590 |
|
|
log.debug("Deleted 0 expired collections, mdStore Id:" + currentObject.get("mdId"));
|
| 591 |
34000
|
sandro.lab
|
return;
|
| 592 |
|
|
}
|
| 593 |
50676
|
claudio.at
|
for (Object anExpiring : expiring) {
|
| 594 |
|
|
final DBObject currentExpiredStore = (DBObject) anExpiring;
|
| 595 |
34000
|
sandro.lab
|
final String currentUsedId = (String) currentExpiredStore.get("id");
|
| 596 |
|
|
final Days d = getExpiringDays(currentExpiredStore, "lastRead");
|
| 597 |
|
|
if (log.isDebugEnabled()) {
|
| 598 |
|
|
log.debug("the store :" + currentId + " expired since " + d.getDays() + "days ");
|
| 599 |
33589
|
sandro.lab
|
}
|
| 600 |
34000
|
sandro.lab
|
// DELETE the collection where the last time they was read
|
| 601 |
|
|
// is more than 3 days ago
|
| 602 |
|
|
if (d.getDays() > getExpiredDays()) {
|
| 603 |
50676
|
claudio.at
|
if (!currentUsedId.equals(currentId)) {
|
| 604 |
34000
|
sandro.lab
|
db.getCollection(currentUsedId).drop();
|
| 605 |
|
|
db.getCollection("discarded-" + currentUsedId).drop();
|
| 606 |
|
|
log.debug("deleted collection " + currentUsedId);
|
| 607 |
|
|
}
|
| 608 |
|
|
toRemove.add(currentExpiredStore);
|
| 609 |
|
|
}
|
| 610 |
33589
|
sandro.lab
|
}
|
| 611 |
34000
|
sandro.lab
|
delete(expiring, toRemove);
|
| 612 |
34605
|
alessia.ba
|
log.debug("Deleted expired " + toRemove.size() + "collections, mdStore Id:" + currentObject.get("mdId"));
|
| 613 |
34000
|
sandro.lab
|
}
|
| 614 |
29274
|
sandro.lab
|
|
| 615 |
34000
|
sandro.lab
|
/**
|
| 616 |
|
|
* Gets the expiring days.
|
| 617 |
36324
|
sandro.lab
|
*
|
| 618 |
34000
|
sandro.lab
|
* @param value
|
| 619 |
|
|
* the value
|
| 620 |
|
|
* @param paramName
|
| 621 |
|
|
* the param name
|
| 622 |
|
|
* @return the expiring days
|
| 623 |
|
|
*/
|
| 624 |
|
|
private Days getExpiringDays(final DBObject value, final String paramName) {
|
| 625 |
|
|
final Date lastRead = (Date) value.get(paramName);
|
| 626 |
|
|
final DateTime last = new DateTime(lastRead);
|
| 627 |
|
|
final DateTime today = new DateTime();
|
| 628 |
|
|
final Days d = Days.daysBetween(last, today);
|
| 629 |
|
|
return d;
|
| 630 |
33589
|
sandro.lab
|
}
|
| 631 |
29274
|
sandro.lab
|
|
| 632 |
33589
|
sandro.lab
|
/**
|
| 633 |
34000
|
sandro.lab
|
* Gets the expired days.
|
| 634 |
36324
|
sandro.lab
|
*
|
| 635 |
33589
|
sandro.lab
|
* @return the expiredDays
|
| 636 |
|
|
*/
|
| 637 |
|
|
public int getExpiredDays() {
|
| 638 |
34605
|
alessia.ba
|
if (this.expiredDays == 0) return 3;
|
| 639 |
33589
|
sandro.lab
|
return expiredDays;
|
| 640 |
|
|
}
|
| 641 |
28055
|
sandro.lab
|
|
| 642 |
33589
|
sandro.lab
|
/**
|
| 643 |
34000
|
sandro.lab
|
* Sets the expired days.
|
| 644 |
36324
|
sandro.lab
|
*
|
| 645 |
33589
|
sandro.lab
|
* @param expiredDays
|
| 646 |
|
|
* the expiredDays to set
|
| 647 |
|
|
*/
|
| 648 |
|
|
public void setExpiredDays(final int expiredDays) {
|
| 649 |
|
|
this.expiredDays = expiredDays;
|
| 650 |
|
|
}
|
| 651 |
28055
|
sandro.lab
|
|
| 652 |
34000
|
sandro.lab
|
/**
|
| 653 |
|
|
* Update incremental.
|
| 654 |
36324
|
sandro.lab
|
*
|
| 655 |
34000
|
sandro.lab
|
* @param transactionId
|
| 656 |
|
|
* the transaction id
|
| 657 |
|
|
* @param currentId
|
| 658 |
|
|
* the current id
|
| 659 |
|
|
*/
|
| 660 |
33589
|
sandro.lab
|
private void updateIncremental(final String transactionId, final String currentId) {
|
| 661 |
41687
|
alessia.ba
|
final MongoCollection<DBObject> transaction = db.getCollection(transactionId, DBObject.class);
|
| 662 |
|
|
final MongoCollection<DBObject> mdstore = db.getCollection(currentId, DBObject.class);
|
| 663 |
47863
|
claudio.at
|
final FindIterable<DBObject> it = transaction.find().noCursorTimeout(true);
|
| 664 |
|
|
for (DBObject currentObj : it) {
|
| 665 |
33792
|
claudio.at
|
final String id = (String) currentObj.get("id");
|
| 666 |
55359
|
alessia.ba
|
BasicDBObject newObj = (BasicDBObject)((BasicDBObject) currentObj).copy();
|
| 667 |
|
|
//Must not have _id in the new object
|
| 668 |
|
|
newObj.remove("_id");
|
| 669 |
55330
|
alessia.ba
|
//setting to journaled write concern to be sure that when the write returns everything has been flushed to disk (https://docs.mongodb.org/manual/faq/developers/#when-does-mongodb-write-updates-to-disk)
|
| 670 |
|
|
//the explicit fsync command can't be run anymore: 'Command failed with error 13: 'fsync may only be run against the admin database.'
|
| 671 |
|
|
final MongoCollection<DBObject> mdstoreWrite = mdstore.withWriteConcern(WriteConcern.JOURNALED);
|
| 672 |
55334
|
alessia.ba
|
mdstoreWrite.replaceOne(new BasicDBObject("id", id), newObj, new UpdateOptions().upsert(true));
|
| 673 |
33589
|
sandro.lab
|
}
|
| 674 |
|
|
}
|
| 675 |
28153
|
sandro.lab
|
|
| 676 |
34000
|
sandro.lab
|
/*
|
| 677 |
|
|
* (non-Javadoc)
|
| 678 |
36324
|
sandro.lab
|
*
|
| 679 |
34000
|
sandro.lab
|
* @see eu.dnetlib.data.mdstore.modular.connector.MDStoreTransactionManager#dropTransaction(java.lang.String, java.lang.String)
|
| 680 |
|
|
*/
|
| 681 |
33589
|
sandro.lab
|
@Override
|
| 682 |
|
|
public Boolean dropTransaction(final String mdId, final String idToDrop) throws MDStoreServiceException {
|
| 683 |
|
|
verifyConsistency();
|
| 684 |
41551
|
alessia.ba
|
final DBObject mdstoreInfo = getMDStoreAsDBObject(mdId);
|
| 685 |
|
|
if (mdstoreInfo == null) throw new MDStoreServiceException("Error, unable to find Mdstore with Id " + mdId);
|
| 686 |
|
|
return dropStore(mdstoreInfo, idToDrop, "transactions");
|
| 687 |
33589
|
sandro.lab
|
}
|
| 688 |
34000
|
sandro.lab
|
|
| 689 |
34145
|
sandro.lab
|
public void garbageTransactionsOnStart() throws MDStoreServiceException {
|
| 690 |
|
|
verifyConsistency();
|
| 691 |
41551
|
alessia.ba
|
FindIterable<DBObject> it = this.managerTable.find();
|
| 692 |
42497
|
sandro.lab
|
|
| 693 |
|
|
final List<String> currentMdStoreId = Lists.newArrayList();
|
| 694 |
41551
|
alessia.ba
|
for (DBObject currentObject : it){
|
| 695 |
42497
|
sandro.lab
|
currentMdStoreId.add((String) currentObject.get("currentId"));
|
| 696 |
34145
|
sandro.lab
|
final BasicDBList transactions = (BasicDBList) currentObject.get("transactions");
|
| 697 |
34605
|
alessia.ba
|
if ((transactions != null) && (transactions.size() > 0)) {
|
| 698 |
50676
|
claudio.at
|
for (Object tx : transactions) {
|
| 699 |
|
|
final DBObject currentTransactions = (DBObject) tx;
|
| 700 |
34145
|
sandro.lab
|
final String id = (String) currentTransactions.get("id");
|
| 701 |
|
|
db.getCollection(id).drop();
|
| 702 |
|
|
db.getCollection("discarded-" + id).drop();
|
| 703 |
|
|
log.debug("deleted collection " + id);
|
| 704 |
|
|
}
|
| 705 |
41551
|
alessia.ba
|
currentObject.put("transactions", new BasicDBList());
|
| 706 |
|
|
this.getManagerTable().findOneAndReplace(new BasicDBObject("_id", currentObject.get("_id")), currentObject);
|
| 707 |
34145
|
sandro.lab
|
}
|
| 708 |
|
|
}
|
| 709 |
42497
|
sandro.lab
|
|
| 710 |
|
|
//DELETING ALL THE DISCARDED COLLECTION THAT DISCARDED COLLECTION OF THE CURRENT MDSTORE
|
| 711 |
|
|
final ArrayList<String> collectionsNames = Lists.newArrayList(db.listCollectionNames());
|
| 712 |
|
|
|
| 713 |
|
|
for (String item : collectionsNames) {
|
| 714 |
|
|
if (item.startsWith("discarded-")) {
|
| 715 |
|
|
final String currentCollection = StringUtils.substringAfter(item, "discarded-");
|
| 716 |
|
|
if (!currentMdStoreId.contains(currentCollection)) {
|
| 717 |
42498
|
sandro.lab
|
log.info("Deleting discarded collection :" + item);
|
| 718 |
42497
|
sandro.lab
|
this.db.getCollection(item).drop();
|
| 719 |
|
|
}
|
| 720 |
|
|
}
|
| 721 |
|
|
}
|
| 722 |
34145
|
sandro.lab
|
}
|
| 723 |
|
|
|
| 724 |
34000
|
sandro.lab
|
/**
|
| 725 |
|
|
* Gets the max transactions.
|
| 726 |
36324
|
sandro.lab
|
*
|
| 727 |
34000
|
sandro.lab
|
* @return the maxTransactions
|
| 728 |
|
|
*/
|
| 729 |
|
|
public int getMaxTransactions() {
|
| 730 |
|
|
return maxTransactions;
|
| 731 |
|
|
}
|
| 732 |
|
|
|
| 733 |
|
|
/**
|
| 734 |
|
|
* Sets the max transactions.
|
| 735 |
36324
|
sandro.lab
|
*
|
| 736 |
34000
|
sandro.lab
|
* @param maxTransactions
|
| 737 |
|
|
* the maxTransactions to set
|
| 738 |
|
|
*/
|
| 739 |
|
|
public void setMaxTransactions(final int maxTransactions) {
|
| 740 |
|
|
this.maxTransactions = maxTransactions;
|
| 741 |
|
|
}
|
| 742 |
28055
|
sandro.lab
|
}
|