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package root

Definition Classes: root

package com

Definition Classes: root

package here

Definition Classes: com

package platform

Definition Classes: here

package data

Definition Classes: platform

package processing

This package provides the Data Processing Library for building distributed data processing applications.

A Runner both implements the interface with the environment for an application to run, and starts the application. The application, in turn, is driven by a Driver, that controls and performs the distributed processing.

Choose a Runner best suited for the environment where the application runs.

The Driver performs one of more tasks which read layers from input catalogs and write to one or more layers of an output catalog.

The main entry point in the processing library is the com.here.platform.data.processing.driver.DriverBuilder class where you can add different kinds of tasks to the driver. The driver runs the tasks, and commits the final results to the output catalog.

Tasks are implemented using one or more compilers.

The simplest compiler is the direct compiler which maps each input tile to N output tiles. The application needs to define com.here.platform.data.processing.compiler.Direct1ToNCompiler.

Other more complex compilation patterns are based on some kind of dependency tracking between input partitions and output partitions.

The processing Library supports the following patterns:

- com.here.platform.data.processing.compiler.NonIncrementalCompiler: non-incremental compilation only - com.here.platform.data.processing.compiler.DepCompiler: non-incremental dependency calculation and incremental compilation - com.here.platform.data.processing.compiler.IncrementalDepCompiler: incremental dependency calculation and compilation - com.here.platform.data.processing.compiler.Direct1ToNCompiler: incremental compilation where every output tile depends only on one input tile, and this mapping is independent from tile content - com.here.platform.data.processing.compiler.DirectMToNCompiler: incremental compilation where every output tile depends on multiple input tiles, and this mapping is independent from tile content - com.here.platform.data.processing.compiler.MapGroupCompiler: incremental compilation where every output tile can depend on multiple input tiles, and this mapping depend on the tile content - com.here.platform.data.processing.compiler.RefTreeCompiler: fully-managed two phases incremental compilation that can resolve references between input partitions. Input/Output dependency management is implemented and the developer doesn't need to provide this logic

The application's main object normally mixes in the a runner trait (like PipelineRunner) to setup the Driver, and interfaces with the environment where the application is run. See the Main classes in the example compilers for more details.

com.here.platform.data.processing.catalog, com.here.platform.data.processing.blobstore, and com.here.platform.data.processing.publisher contain utilities for accessing catalogs and payloads in a Spark-friendly way, providing an RDD-based abstraction over data and metadata. These classes are used by the processing library, but can also be used independently.

Definition Classes: data

package validation

Definition Classes: processing

package scalatest

Definition Classes: validation

Accumulator

AggregatedLongAccumulator

DefaultJsonSerializers

IncompatibleAccumulatorOpException

com.here.platform.data.processing.validation

GeoJson

object GeoJson

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type LineStringCoordinates = Seq[Position]
type PolygonCoordinates = Seq[LineStringCoordinates]

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def makeFeature(geometry: Geometry, properties: (String, Any)*): Feature
Creates a new GeoJSON Feature.
Creates a new GeoJSON Feature.
geometry
The feature Geometry.
properties
Arbitrary properties. For more information about how you can use these properties to customize the look and feel of the feature, see the Data Inspector Library documentation.
returns
a new Feature.
def makeLineString(points: Seq[Point]): LineString
Creates a GeoJSON LineString.
Creates a GeoJSON LineString.
points
The sequence of Points in the LineString.
returns
a new LineString.
def makeMultiLineString(lineStrings: Seq[LineString]): MultiLineString
Creates a GeoJSON MultiLineString.
Creates a GeoJSON MultiLineString.
lineStrings
The sequence of LineStrings in the MultiLineString.
returns
a new MultiLineString.
def makeMultiPoint(points: Seq[Point]): MultiPoint
Creates a GeoJSON MultiPoint.
Creates a GeoJSON MultiPoint.
points
The sequence of Points in the MultiPoint.
returns
a new MultiPoint.
def makeMultiPolygon(polygons: Seq[Polygon]): MultiPolygon
Creates a GeoJSON MultiPolygon.
Creates a GeoJSON MultiPolygon.
polygons
The sequence of Polygons in the MultiPolygon.
returns
a new MultiPolygon.
def makePoint(longitude: Double, latitude: Double): Point
Creates a GeoJSON Point.
Creates a GeoJSON Point.
longitude
Longitude in degrees.
latitude
Latitude in degrees.
returns
a new Point.
def makePolygon(exteriorRing: LineString, interiorRings: Seq[LineString]): Polygon
Creates a GeoJSON Polygon
Creates a GeoJSON Polygon
exteriorRing
The exterior ring LineString.
interiorRings
The interior ring LineStrings.
returns
a new Polygon.
final def ne(arg0: AnyRef): Boolean
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GeoJson

object GeoJson

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object GeoJson

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