alchemist-loading/it.unibo.alchemist.boundary.exporters/MongoDBExporter

MongoDBExporter

class MongoDBExporter<T, P : Position<P>> @JvmOverloads constructor(val uri: String, val dbName: String = DEFAULT_DATABASE, val interval: Double = DEFAULT_INTERVAL, appendTime: Boolean = false) : AbstractExporter<T, P> (source)

Exports data to a MongoDB instance.

Type Parameters

the concentration type

the position type

Constructors

MongoDBExporter

@JvmOverloads

constructor(uri: String, dbName: String = DEFAULT_DATABASE, interval: Double = DEFAULT_INTERVAL, appendTime: Boolean = false)

Properties

collectionName

lateinit var collectionName: String

The name of the collection related to the current simulation in execution.

dataExtractors

lateinit override var dataExtractors: List<Extractor<*>>

The list of bound data extractors.

dbName

val dbName: String

the name of the database to export data to

interval

val interval: Double

the sampling time, defaults to AbstractExporter.DEFAULT_INTERVAL

uri

val uri: String

the connection URI of the database instance

Functions

bindDataExtractors

override fun bindDataExtractors(dataExtractors: List<Extractor<*>>)

Assign the list of dataExtractors to the selected Exporter.

bindVariables

override fun bindVariables(variables: Map<String, *>)

Assign the map of variables to the selected Exporter.

open override fun close(environment: Environment<T, P>, time: Time, step: Long)

Close the export environment. This method is called when the simulation finishes.

exportData

open override fun exportData(environment: Environment<T, P>, reaction: Actionable<T>?, time: Time, step: Long)

Delegates the concrete implementation of this method to his subclasses.

setup

open override fun setup(environment: Environment<T, P>)

Prepare the export environment. This method is called only once upon simulation initialization.

update

override fun update(environment: Environment<T, P>, reaction: Actionable<T>?, time: Time, step: Long)

Every step of the simulation check if is time to export data depending on the sampling interval. Converts the division of the current time and the interval to Long in order to export data only when the difference between steps is as big as the sampling interval.