/*
- * Copyright 2011 GRNET S.A. All rights reserved.
+ * Copyright 2011-2012 GRNET S.A. All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
package gr.grnet.aquarium.store.mongodb
-import gr.grnet.aquarium.util.Loggable
-import com.mongodb.util.JSON
-import gr.grnet.aquarium.user.UserState
-import gr.grnet.aquarium.util.displayableObjectInfo
-import gr.grnet.aquarium.util.json.JsonSupport
-import collection.mutable.ListBuffer
-import gr.grnet.aquarium.store._
-import gr.grnet.aquarium.logic.events.{WalletEntry, ResourceEvent, AquariumEvent}
-import gr.grnet.aquarium.logic.events.ResourceEvent.JsonNames
-import java.util.Date
+import collection.immutable
import com.mongodb._
-import com.ckkloverdos.maybe.{Failed, Just, Maybe}
+import gr.grnet.aquarium.computation.BillingMonthInfo
+import gr.grnet.aquarium.converter.StdConverters
+import gr.grnet.aquarium.logic.accounting.dsl.Timeslot
+import gr.grnet.aquarium.message.MessageConstants
+import gr.grnet.aquarium.message.avro.gen.{UserAgreementHistoryMsg, UserStateMsg, IMEventMsg, ResourceEventMsg, PolicyMsg}
+import gr.grnet.aquarium.message.avro.{MessageHelpers, MessageFactory, OrderingHelpers, AvroHelpers}
+import gr.grnet.aquarium.store._
+import gr.grnet.aquarium.util._
+import gr.grnet.aquarium.util.Once
+import gr.grnet.aquarium.util.json.JsonSupport
+import gr.grnet.aquarium.{Aquarium, AquariumException}
+import org.apache.avro.specific.SpecificRecord
+import org.bson.types.ObjectId
/**
* Mongodb implementation of the various aquarium stores.
*
* @author Christos KK Loverdos <loverdos@gmail.com>
* @author Georgios Gousios <gousiosg@gmail.com>
+ * @author Prodromos Gerakios <pgerakio@grnet.gr>
*/
class MongoDBStore(
+ val aquarium: Aquarium,
val mongo: Mongo,
val database: String,
val username: String,
val password: String)
- extends ResourceEventStore with UserStore with WalletStore with Loggable {
+ extends ResourceEventStore
+ with UserStateStore
+ with IMEventStore
+ with PolicyStore
+ with Loggable {
+
+ private[store] lazy val resourceEvents = getCollection(MongoDBStore.ResourceEventCollection)
+ private[store] lazy val userStates = getCollection(MongoDBStore.UserStateCollection)
+ private[store] lazy val imEvents = getCollection(MongoDBStore.IMEventCollection)
+ private[store] lazy val policies = getCollection(MongoDBStore.PolicyCollection)
+
+ private[store] lazy val indicesMap = {
+ val resev= new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames.id,1).
+ add(MongoDBStore.JsonNames.userID,1).
+ add(MongoDBStore.JsonNames.occurredMillis,1).
+ add(MongoDBStore.JsonNames.receivedMillis,1).get
+ val imev = new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames.userID,1).
+ add(MongoDBStore.JsonNames.eventType,"").
+ add(MongoDBStore.JsonNames.occurredMillis,1).get
+ val policy = new BasicDBObjectBuilder().
+ add("validFromMillis",1).
+ add("validToMillis",1).get
+ val user = new BasicDBObjectBuilder().
+ add( "occurredMillis",1).
+ add("isFullBillingMonth",false).
+ add("billingYear",1).
+ add("billingMonth",1).
+ add("billingMonthDay",1).get
+ Map(MongoDBStore.ResourceEventCollection -> resev,
+ MongoDBStore.IMEventCollection-> imev,
+ MongoDBStore.PolicyCollection-> policy,
+ MongoDBStore.UserStateCollection-> user
+ )
+ }
+ private[this] val once = new Once()
- private[store] lazy val rcevents: DBCollection = getCollection(MongoDBStore.RESOURCE_EVENTS_COLLECTION)
- private[store] lazy val users: DBCollection = getCollection(MongoDBStore.USERS_COLLECTION)
- private[store] lazy val imevents: DBCollection = getCollection(MongoDBStore.IM_EVENTS_COLLECTION)
- private[store] lazy val wallets: DBCollection = getCollection(MongoDBStore.IM_WALLETS)
+ private[this] def doAuthenticate(db: DB) {
+ if(!db.isAuthenticated && !db.authenticate(username, password.toCharArray)) {
+ throw new AquariumException("Could not authenticate user %s".format(username))
+ }
+ }
private[this] def getCollection(name: String): DBCollection = {
val db = mongo.getDB(database)
- if(!db.authenticate(username, password.toCharArray)) {
- throw new StoreException("Could not authenticate user %s".format(username))
+ doAuthenticate(db)
+ once.run { /* this code is thread-safe and will run exactly once*/
+ indicesMap.foreach { case (collection,obj) =>
+ mongo.getDB(database).getCollection(collection).createIndex(obj)
+ }
}
db.getCollection(name)
}
- /* TODO: Some of the following methods rely on JSON (de-)serialization).
- * A method based on proper object serialization would be much faster.
- */
+ //+ResourceEventStore
+ def pingResourceEventStore(): Unit = synchronized {
+ getCollection(MongoDBStore.ResourceEventCollection)
+ MongoDBStore.ping(mongo)
+ }
- private[this] def _makeDBObject(any: JsonSupport): DBObject = {
- JSON.parse(any.toJson) match {
- case dbObject: DBObject ⇒
- dbObject
- case _ ⇒
- throw new StoreException("Could not transform %s -> %s".format(displayableObjectInfo(any), classOf[DBObject].getName))
- }
+ def insertResourceEvent(event: ResourceEventMsg) = {
+ val mongoID = new ObjectId()
+ event.setInStoreID(mongoID.toStringMongod)
+
+ val dbObject = new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames._id, mongoID).
+ add(MongoDBStore.JsonNames.payload, AvroHelpers.bytesOfSpecificRecord(event)).
+ add(MongoDBStore.JsonNames.userID, event.getUserID).
+ add(MongoDBStore.JsonNames.occurredMillis, event.getOccurredMillis).
+ add(MongoDBStore.JsonNames.receivedMillis, event.getReceivedMillis).
+ get()
+
+ MongoDBStore.insertDBObject(dbObject, resourceEvents)
+ event
+ }
+
+ def findResourceEventByID(id: String): Option[ResourceEventMsg] = {
+ val dbObjectOpt = MongoDBStore.findOneByAttribute(resourceEvents, MongoDBStore.JsonNames.id, id)
+ for {
+ dbObject ← dbObjectOpt
+ payload = dbObject.get(MongoDBStore.JsonNames.payload)
+ msg = AvroHelpers.specificRecordOfBytes(payload.asInstanceOf[Array[Byte]], new ResourceEventMsg)
+ } yield msg
}
- private[this] def _insertObject(collection: DBCollection, obj: JsonSupport): DBObject = {
- val dbObj = _makeDBObject(obj)
- collection insert dbObj
- dbObj
+ def countOutOfSyncResourceEventsForBillingPeriod(userID: String, startMillis: Long, stopMillis: Long): Long = {
+ val query = new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames.userID, userID).
+ // received within the period
+ add(MongoDBStore.JsonNames.receivedMillis, new BasicDBObject("$gte", startMillis)).
+ add(MongoDBStore.JsonNames.receivedMillis, new BasicDBObject("$lte", stopMillis)).
+ // occurred outside the period
+ add("$or", {
+ val dbList = new BasicDBList()
+ dbList.add(0, new BasicDBObject(MongoDBStore.JsonNames.occurredMillis, new BasicDBObject("$lt", startMillis)))
+ dbList.add(1, new BasicDBObject(MongoDBStore.JsonNames.occurredMillis, new BasicDBObject("$gt", stopMillis)))
+ dbList
+ }).
+ get()
+
+ resourceEvents.count(query)
}
- private[this] def _checkWasInserted(collection: DBCollection, obj: JsonSupport, idName: String, id: String): String = {
- val cursor = collection.find(new BasicDBObject(idName, id))
- if (!cursor.hasNext) {
- val errMsg = "Failed to _store %s".format(displayableObjectInfo(obj))
- logger.error(errMsg)
- throw new StoreException(errMsg)
+ def foreachResourceEventOccurredInPeriod(
+ userID: String,
+ startMillis: Long,
+ stopMillis: Long
+ )(f: ResourceEventMsg ⇒ Unit): Long = {
+ var _counter= 0L
+ val query = new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames.userID, userID).
+ add(MongoDBStore.JsonNames.occurredMillis, new BasicDBObject("$gte", startMillis)).
+ add(MongoDBStore.JsonNames.occurredMillis, new BasicDBObject("$lte", stopMillis)).
+ get()
+
+ val sorter = new BasicDBObject(MongoDBStore.JsonNames.occurredMillis, 1)
+ val cursor = resourceEvents.find(query).sort(sorter)
+
+ withCloseable(cursor) { cursor ⇒
+ while(cursor.hasNext) {
+ val nextDBObject = cursor.next()
+ val payload = nextDBObject.get(MongoDBStore.JsonNames.payload).asInstanceOf[Array[Byte]]
+ val nextEvent = AvroHelpers.specificRecordOfBytes(payload, new ResourceEventMsg)
+
+ f(nextEvent)
+ _counter += 1
+ }
}
- val retval = cursor.next.get("_id").toString
- cursor.close()
- retval
+ _counter
}
+ //-ResourceEventStore
- private[this] def _store[A <: AquariumEvent](entry: A, col: DBCollection) : Maybe[RecordID] = {
- try {
- // Store
- val dbObj = _makeDBObject(entry)
- col.insert(dbObj)
+ //+ UserStateStore
+ def findUserStateByUserID(userID: String) = {
+ val dbObjectOpt = MongoDBStore.findOneByAttribute(userStates, MongoDBStore.JsonNames.userID, userID)
+ for {
+ dbObject <- dbObjectOpt
+ payload = dbObject.get(MongoDBStore.JsonNames.payload).asInstanceOf[Array[Byte]]
+ msg = AvroHelpers.specificRecordOfBytes(payload, new UserStateMsg)
+ } yield {
+ msg
+ }
+ }
- // Get back to retrieve unique id
- val cursor = col.find(new BasicDBObject(JsonNames.id, entry.id))
+ def findLatestUserStateForFullMonthBilling(userID: String, bmi: BillingMonthInfo) = {
+ val query = new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames.userID, userID).
+ add(MongoDBStore.JsonNames.isForFullMonth, true).
+ add(MongoDBStore.JsonNames.billingYear, bmi.year).
+ add(MongoDBStore.JsonNames.billingMonth, bmi.month).
+ get()
- if (!cursor.hasNext) {
- cursor.close()
- logger.error("Failed to _store entry: %s".format(entry))
- return Failed(new StoreException("Failed to _store entry: %s".format(entry)))
- }
+ // Descending order, so that the latest comes first
+ val sorter = new BasicDBObject(MongoDBStore.JsonNames.occurredMillis, -1)
- val retval = Just(RecordID(cursor.next.get(JsonNames._id).toString))
- cursor.close()
- retval
- } catch {
- case m: MongoException =>
- logger.error("Unknown Mongo error: %s".format(m)); Failed(m)
+ val cursor = userStates.find(query).sort(sorter)
+
+ withCloseable(cursor) { cursor ⇒
+ MongoDBStore.findNextPayloadRecord(cursor, new UserStateMsg)
}
}
- private[this] def _sortByTimestampAsc[A <: AquariumEvent](one: A, two: A): Boolean = {
- if (one.occurredMillis > two.occurredMillis) false
- else if (one.occurredMillis < two.occurredMillis) true
- else true
- }
+ def findLatestUserState(userID: String) = {
+ val query = new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames.userID, userID).
+ get()
+
+ // Descending order, so that the latest comes first
+ val sorter = new BasicDBObject(MongoDBStore.JsonNames.occurredMillis, -1)
+
+ val cursor = userStates.find(query).sort(sorter)
- private[this] def _sortByTimestampDesc[A <: AquariumEvent](one: A, two: A): Boolean = {
- if (one.occurredMillis < two.occurredMillis) false
- else if (one.occurredMillis > two.occurredMillis) true
- else true
+ withCloseable(cursor) { cursor ⇒
+ MongoDBStore.findNextPayloadRecord(cursor, new UserStateMsg)
+ }
}
- //+ResourceEventStore
- def storeResourceEvent(event: ResourceEvent): Maybe[RecordID] = _store(event, rcevents)
+ /**
+ * Stores a user state.
+ */
+ def insertUserState(event: UserStateMsg)= {
+ val mongoID = new ObjectId()
+ event.setInStoreID(mongoID.toStringMongod)
+
+ val dbObject = new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames._id, mongoID).
+ add(MongoDBStore.JsonNames.payload, AvroHelpers.bytesOfSpecificRecord(event)).
+ add(MongoDBStore.JsonNames.userID, event.getUserID).
+ add(MongoDBStore.JsonNames.occurredMillis, event.getOccurredMillis).
+ add(MongoDBStore.JsonNames.isForFullMonth, event.getIsForFullMonth).
+ add(MongoDBStore.JsonNames.billingYear, event.getBillingYear).
+ add(MongoDBStore.JsonNames.billingMonth, event.getBillingMonth).
+ add(MongoDBStore.JsonNames.billingMonthDay, event.getBillingMonthDay).
+ get()
+
+ MongoDBStore.insertDBObject(dbObject, userStates)
+ event
+ }
+ //- UserStateStore
- def findResourceEventById(id: String): Maybe[ResourceEvent] = MongoDBStore.findById(id, rcevents, MongoDBStore.dbObjectToResourceEvent)
+ //+IMEventStore
+ def pingIMEventStore(): Unit = {
+ getCollection(MongoDBStore.IMEventCollection)
+ MongoDBStore.ping(mongo)
+ }
- def findResourceEventsByUserId(userId: String)
- (sortWith: Option[(ResourceEvent, ResourceEvent) => Boolean]): List[ResourceEvent] = {
- val query = new BasicDBObject(JsonNames.userId, userId)
+ def insertIMEvent(event: IMEventMsg) = {
+ val mongoID = new ObjectId()
+ event.setInStoreID(mongoID.toStringMongod)
+
+ val dbObject = new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames._id, mongoID).
+ add(MongoDBStore.JsonNames.payload, AvroHelpers.bytesOfSpecificRecord(event)).
+ add(MongoDBStore.JsonNames.userID, event.getUserID).
+ add(MongoDBStore.JsonNames.eventType, event.getEventType().toLowerCase).
+ add(MongoDBStore.JsonNames.occurredMillis, event.getOccurredMillis).
+ add(MongoDBStore.JsonNames.receivedMillis, event.getReceivedMillis).
+ get()
+
+ MongoDBStore.insertDBObject(dbObject, imEvents)
+ event
+ }
- MongoDBStore.runQuery(query, rcevents)(MongoDBStore.dbObjectToResourceEvent)(sortWith)
+ def findIMEventByID(id: String) = {
+ val dbObjectOpt = MongoDBStore.findOneByAttribute(imEvents, MongoDBStore.JsonNames.id, id)
+ for {
+ dbObject ← dbObjectOpt
+ payload = dbObject.get(MongoDBStore.JsonNames.payload).asInstanceOf[Array[Byte]]
+ msg = AvroHelpers.specificRecordOfBytes(payload, new IMEventMsg)
+ } yield {
+ msg
+ }
}
- def findResourceEventsByUserIdAfterTimestamp(userId: String, timestamp: Long): List[ResourceEvent] = {
- val query = new BasicDBObject()
- query.put(JsonNames.userId, userId)
- query.put(JsonNames.timestamp, new BasicDBObject("$gte", timestamp))
-
- val sort = new BasicDBObject(JsonNames.timestamp, 1)
- val cursor = rcevents.find(query).sort(sort)
+ /**
+ * Find the `CREATE` even for the given user. Note that there must be only one such event.
+ */
+ def findCreateIMEventByUserID(userID: String) = {
+ val query = new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames.userID, userID).
+ add(MongoDBStore.JsonNames.eventType, MessageConstants.IMEventMsg.EventTypes.create).get()
- try {
- val buffer = new scala.collection.mutable.ListBuffer[ResourceEvent]
- while(cursor.hasNext) {
- buffer += MongoDBStore.dbObjectToResourceEvent(cursor.next())
+ // Normally one such event is allowed ...
+ val cursor = imEvents.find(query).sort(new BasicDBObject(MongoDBStore.JsonNames.occurredMillis, 1))
+
+ val dbObjectOpt = withCloseable(cursor) { cursor ⇒
+ if(cursor.hasNext) {
+ Some(cursor.next())
+ } else {
+ None
}
- buffer.toList
- } finally {
- cursor.close()
}
- }
- //-ResourceEventStore
- //+UserStore
- def storeUserState(userState: UserState): Maybe[RecordID] = {
- Maybe {
- val dbObj = _insertObject(users, userState)
- val id = _checkWasInserted(users, userState, JsonNames.userId, userState.userId)
- RecordID(id)
+ for {
+ dbObject <- dbObjectOpt
+ payload = dbObject.get(MongoDBStore.JsonNames.payload).asInstanceOf[Array[Byte]]
+ msg = AvroHelpers.specificRecordOfBytes(payload, new IMEventMsg)
+ } yield {
+ msg
}
}
- def findUserStateByUserId(userId: String): Maybe[UserState] = {
- Maybe {
- val query = new BasicDBObject(JsonNames.userId, userId)
- val cursor = rcevents find query
-
- try {
- if(cursor.hasNext)
- MongoDBStore.dbObjectToUserState(cursor.next())
- else
- null
- } finally {
- cursor.close()
+ /**
+ * Scans events for the given user, sorted by `occurredMillis` in ascending order and runs them through
+ * the given function `f`.
+ *
+ * Any exception is propagated to the caller. The underlying DB resources are properly disposed in any case.
+ */
+ def foreachIMEventInOccurrenceOrder(userID: String)(f: (IMEventMsg) ⇒ Boolean) = {
+ val query = new BasicDBObject(MongoDBStore.JsonNames.userID, userID)
+ val cursor = imEvents.find(query).sort(new BasicDBObject(MongoDBStore.JsonNames.occurredMillis, 1))
+
+ var _shouldContinue = true
+ withCloseable(cursor) { cursor ⇒
+ while(_shouldContinue && cursor.hasNext) {
+ val dbObject = cursor.next()
+ val payload = dbObject.get(MongoDBStore.JsonNames.payload).asInstanceOf[Array[Byte]]
+ val msg = AvroHelpers.specificRecordOfBytes(payload, new IMEventMsg)
+
+ _shouldContinue = f(msg)
}
}
+
+ _shouldContinue
}
- //-UserStore
+ //-IMEventStore
- //+WalletStore
- def store(entry: WalletEntry): Maybe[RecordID] = _store(entry, wallets)
+ //+PolicyStore
+ def foreachPolicy[U](f: PolicyMsg ⇒ U) {
+ val cursor = policies.find()
+ withCloseable(cursor) { cursor ⇒
+ while(cursor.hasNext) {
+ val dbObject = cursor.next()
+ val payload = dbObject.get(MongoDBStore.JsonNames.payload).asInstanceOf[Array[Byte]]
+ val policy = AvroHelpers.specificRecordOfBytes(payload, new PolicyMsg)
+ f(policy)
+ }
+ }
+ }
- def findEntryById(id: String): Maybe[WalletEntry] = MongoDBStore.findById[WalletEntry](id, wallets, MongoDBStore.dbObjectToWalletEntry)
+ def insertPolicy(policy: PolicyMsg): PolicyMsg = {
+ val mongoID = new ObjectId()
+ policy.setInStoreID(mongoID.toStringMongod)
+ val dbObject = new BasicDBObjectBuilder().
+ add(MongoDBStore.JsonNames._id, mongoID).
+ add(MongoDBStore.JsonNames.validFromMillis, policy.getValidFromMillis).
+ add(MongoDBStore.JsonNames.validToMillis, policy.getValidToMillis).
+ add(MongoDBStore.JsonNames.payload, AvroHelpers.bytesOfSpecificRecord(policy)).
+ get()
+
+ MongoDBStore.insertDBObject(dbObject, policies)
+ policy
+ }
- def findAllUserEntries(userId: String) = findUserEntriesFromTo(userId, new Date(0), new Date(Int.MaxValue))
+ def loadPolicyAt(atMillis: Long): Option[PolicyMsg] = {
+ // FIXME Inefficient
+ var _policies = immutable.TreeSet[PolicyMsg]()(OrderingHelpers.DefaultPolicyMsgOrdering)
+ foreachPolicy(_policies += _)
+ _policies.to(MessageFactory.newDummyPolicyMsgAt(atMillis)).lastOption
+ }
- def findUserEntriesFromTo(userId: String, from: Date, to: Date) : List[WalletEntry] = {
- val q = new BasicDBObject()
- // TODO: Is this the correct way for an AND query?
- q.put(JsonNames.timestamp, new BasicDBObject("$gt", from.getTime))
- q.put(JsonNames.timestamp, new BasicDBObject("$lt", to.getTime))
- q.put(JsonNames.userId, userId)
+ def loadSortedPoliciesWithin(fromMillis: Long, toMillis: Long): immutable.SortedMap[Timeslot, PolicyMsg] = {
+ // FIXME Inefficient
+ var _policies = immutable.TreeSet[PolicyMsg]()(OrderingHelpers.DefaultPolicyMsgOrdering)
+ foreachPolicy(_policies += _)
- MongoDBStore.runQuery[WalletEntry](q, wallets)(MongoDBStore.dbObjectToWalletEntry)(Some(_sortByTimestampAsc))
+ immutable.SortedMap(_policies.
+ from(MessageFactory.newDummyPolicyMsgAt(fromMillis)).
+ to(MessageFactory.newDummyPolicyMsgAt(toMillis)).toSeq.
+ map(p ⇒ (Timeslot(p.getValidFromMillis, p.getValidToMillis), p)): _*
+ )
}
- //-WalletStore
+ //-PolicyStore
}
object MongoDBStore {
- def RESOURCE_EVENTS_COLLECTION = "rcevents"
- def USERS_COLLECTION = "users"
- def IM_EVENTS_COLLECTION = "imevents"
- def IM_WALLETS = "wallets"
+ final val JsonNames = gr.grnet.aquarium.util.json.JsonNames
- def dbObjectToResourceEvent(dbObject: DBObject): ResourceEvent = {
- ResourceEvent.fromJson(JSON.serialize(dbObject))
- }
+ final val collections = List("resevents","userstates","imevents","policies")
+
+ final val ResourceEventCollection = collections(0)
+
+ final val UserStateCollection = collections(1)
+
+ final val IMEventCollection = collections(2)
- def dbObjectToUserState(dbObj: DBObject): UserState = {
- UserState.fromJson(JSON.serialize(dbObj))
+ final val PolicyCollection = collections(3)
+
+ def firstResultIfExists[A](cursor: DBCursor, f: DBObject ⇒ A): Option[A] = {
+ withCloseable(cursor) { cursor ⇒
+ if(cursor.hasNext) {
+ Some(f(cursor.next()))
+ } else {
+ None
+ }
+ }
}
- def dbObjectToWalletEntry(dbObj: DBObject): WalletEntry = {
- WalletEntry.fromJson(JSON.serialize(dbObj))
+ def ping(mongo: Mongo): Unit = synchronized {
+ // This requires a network roundtrip
+ mongo.isLocked
}
- def findById[A >: Null <: AquariumEvent](id: String, collection: DBCollection, deserializer: (DBObject) => A) : Maybe[A] = Maybe {
- val query = new BasicDBObject(JsonNames.id, id)
- val cursor = collection find query
-
- try {
- if(cursor.hasNext)
- deserializer apply cursor.next
- else
- null: A // will be transformed to NoVal by the Maybe polymorphic constructor
- } finally {
- cursor.close()
+ def findOneByAttribute(
+ collection: DBCollection,
+ attributeName: String,
+ attributeValue: String,
+ sortByOpt: Option[DBObject] = None
+ ): Option[DBObject] = {
+ val query = new BasicDBObject(attributeName, attributeValue)
+ val cursor = sortByOpt match {
+ case None ⇒ collection find query
+ case Some(sortBy) ⇒ collection find query sort sortBy
+ }
+ withCloseable(cursor) { cursor ⇒
+ if(cursor.hasNext) Some(cursor.next()) else None
}
}
- def runQuery[A <: AquariumEvent](query: BasicDBObject, collection: DBCollection)
- (deserializer: (DBObject) => A)
- (sortWith: Option[(A, A) => Boolean]): List[A] = {
- val cur = collection find query
- if(!cur.hasNext) {
- cur.close()
- Nil
- } else {
- val buff = new ListBuffer[A]()
-
- while(cur.hasNext) {
- buff += deserializer apply cur.next
- }
-
- cur.close()
+ def insertDBObject(dbObj: DBObject, collection: DBCollection) {
+ collection.insert(dbObj, WriteConcern.JOURNAL_SAFE)
+ }
- sortWith match {
- case Some(sorter) => buff.toList.sortWith(sorter)
- case None => buff.toList
- }
+ def findNextPayloadRecord[R <: SpecificRecord](cursor: DBCursor, fresh: R): Option[R] = {
+ for {
+ dbObject <- if(cursor.hasNext) Some(cursor.next()) else None
+ payload = dbObject.get(MongoDBStore.JsonNames.payload).asInstanceOf[Array[Byte]]
+ msg = AvroHelpers.specificRecordOfBytes(payload, fresh)
+ } yield {
+ msg
}
}
+
+ def jsonSupportToDBObject(jsonSupport: JsonSupport) = {
+ StdConverters.AllConverters.convertEx[DBObject](jsonSupport)
+ }
}
projects / aquarium / blobdiff