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package root
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root
package com
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root
package here
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com
package platform
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here
package data
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platform
package processing
This package provides the Data Processing Library for building distributed data processing applications.
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 driver
Definition Classes
processing
package config
This package contains the configuration classes for all components of a Driver.
This package contains the configuration classes for all components of a Driver. Configuration is read from application.conf and provided to the developer as a com.here.platform.data.processing.driver.config.CompleteConfig instance, when the driver is setup.
Definition Classes
driver
package deltasets
Definition Classes
driver
package filter
Definition Classes
driver
package impl
Definition Classes
driver
package job
Definition Classes
driver
package modes
Definition Classes
driver
package runner
Definition Classes
driver
Default
DeltaDriverTask
DeltaDriverTaskBuilder
DeltaSetup
DeltaSimpleSetup
Driver
DriverBuilder
DriverContext
DriverSetup
DriverSetupManual
DriverSetupWithBuilder
DriverTask
Executor
Fingerprints
IncrementalCompilerExecutor
MultiCompilerTaskBuilder
MultiModeDriverTask
NonIncrementalCompilerExecutor
PartitionKeyFiltering
StatefulCompilerExecutor
TaskBuilder
TaskResult

com.here.platform.data.processing.driver

TaskBuilder

class TaskBuilder extends AnyRef

Constructs a DriverTask by creating an Executor and its applicable com.here.platform.data.processing.driver.modes.TaskModes.

Note: Use the factory method in com.here.platform.data.processing.driver.DriverBuilder to instantiate a TaskBuilder.

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def build(): DriverTask
Constructs a new DriverTask with an Executor that can run the compiler in one of the applicable modes.
Constructs a new DriverTask with an Executor that can run the compiler in one of the applicable modes.
returns
a new DriverTask.
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def withDepCompiler[T](compiler: DepCompiler[T], executorId: Id = id)(implicit arg0: ClassTag[T]): TaskBuilder.this.type
Uses a com.here.platform.data.processing.compiler.DepCompiler as the compiler for the DriverTask being built.
Uses a com.here.platform.data.processing.compiler.DepCompiler as the compiler for the DriverTask being built.
T
The type of the values passed between compileIn and compileOut.
compiler
The compiler implementation.
executorId
Optional executor ID, taken from the driver task when not given.
returns
this TaskBuilder.
def withDirect1ToNCompiler[T](compiler: Direct1ToNCompiler[T], executorId: Id = id)(implicit arg0: ClassTag[T]): TaskBuilder.this.type
Uses a com.here.platform.data.processing.compiler.Direct1ToNCompiler as the compiler for the DriverTask being built.
Uses a com.here.platform.data.processing.compiler.Direct1ToNCompiler as the compiler for the DriverTask being built.
T
The type of the values passed between compileIn and compileOut.
compiler
The compiler implementation.
executorId
Optional executor ID, taken from the driver task when not given.
returns
this TaskBuilder.
def withDirectMToNCompiler[T](compiler: DirectMToNCompiler[T], executorId: Id = id)(implicit arg0: ClassTag[T]): TaskBuilder.this.type
Uses a com.here.platform.data.processing.compiler.DirectMToNCompiler as the compiler for the DriverTask being built.
Uses a com.here.platform.data.processing.compiler.DirectMToNCompiler as the compiler for the DriverTask being built.
T
The type of the values passed between compileIn and compileOut.
compiler
The compiler implementation.
executorId
Optional executor ID, taken from the driver task when not given.
returns
this TaskBuilder.
def withIncrementalDepCompiler[T, CarryOver](compiler: IncrementalDepCompiler[T, CarryOver], executorId: Id = id)(implicit arg0: ClassTag[T]): TaskBuilder.this.type
Uses an com.here.platform.data.processing.compiler.IncrementalDepCompiler as the compiler for the DriverTask being built.
Uses an com.here.platform.data.processing.compiler.IncrementalDepCompiler as the compiler for the DriverTask being built.
T
The type of the values passed between compileIn and compileOut.
CarryOver
The type of the opaque object carried over from updateDepGraph to compileIn.
compiler
The compiler implementation.
executorId
Optional executor ID, taken from the driver task when not given.
returns
this TaskBuilder.
def withMapGroupCompiler[T](compiler: MapGroupCompiler[T], executorId: Id = id)(implicit arg0: ClassTag[T]): TaskBuilder.this.type
Uses a com.here.platform.data.processing.compiler.MapGroupCompiler as the compiler for the DriverTask being built.
Uses a com.here.platform.data.processing.compiler.MapGroupCompiler as the compiler for the DriverTask being built.
T
The type of the values passed between compileIn and compileOut.
compiler
The compiler implementation.
executorId
Optional executor ID, taken from the driver task when not given.
returns
this TaskBuilder.
def withNonIncrementalCompiler(compiler: NonIncrementalCompiler, executorId: Id = id): TaskBuilder.this.type
Uses a com.here.platform.data.processing.compiler.NonIncrementalCompiler as the compiler for the DriverTask being built.
Uses a com.here.platform.data.processing.compiler.NonIncrementalCompiler as the compiler for the DriverTask being built. This compiler only runs non-incrementally.
compiler
The compiler implementation.
executorId
Optional executor ID, taken from the driver task when not given.
returns
this TaskBuilder.
def withRefTreeCompiler[T](compiler: RefTreeCompiler[T], executorId: Id = id)(implicit arg0: ClassTag[T]): TaskBuilder.this.type
Uses a com.here.platform.data.processing.compiler.RefTreeCompiler as the compiler for the DriverTask being built.
Uses a com.here.platform.data.processing.compiler.RefTreeCompiler as the compiler for the DriverTask being built.
T
The type of the values passed between compileIn and compileOut.
compiler
The compiler implementation.
executorId
Optional executor ID, taken from the driver task when not given.
returns
this TaskBuilder.

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