Package org.aksw.jenax.engine.qlever

Class RDFDatabaseBuilderQlever<X extends RDFDatabaseBuilderQlever<X>>

java.lang.Object

org.aksw.jenax.engine.qlever.RDFDatabaseBuilderQlever<X>

All Implemented Interfaces:

org.aksw.commons.util.obj.HasSelf<X>, HasProperties<X>, RDFDatabaseBuilder<X>

public class RDFDatabaseBuilderQlever<X extends RDFDatabaseBuilderQlever<X>>
extends Object
implements RDFDatabaseBuilder<X>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	RDFDatabaseBuilderQlever.FileLoadEntry	Record to capture arguments passed to this builder
static final record	RDFDatabaseBuilderQlever.QleverDbFileSet	Record to capture a set of files that make up a Qlever database.

Field Summary

Fields

Modifier and Type	Field	Description
protected List<RDFDatabaseBuilderQlever.FileLoadEntry>	args
protected QleverIndexBuilderConfig	config
protected String	containerFifoPath	Base path within the container where to mount any named pipes.
protected org.aksw.commons.util.docker.ContainerPathResolver	containerPathResolver	A resolver for host paths if the database builder is used from within docker (dind).
protected List<Map.Entry<org.apache.jena.riot.Lang,Throwable>>	errorCollector
protected org.aksw.jenax.arq.util.prefix.ShortNameMgr	shortNameMgr	Mapping from absolute file paths on the host names to file names.
static final List<org.apache.jena.riot.Lang>	supportedBackendLangs
static final List<org.apache.jena.riot.Lang>	supportedInputLangs	Langs supported by this database builder.
protected org.aksw.shellgebra.exec.SysRuntime	sysRuntime

Constructor Summary

Constructors

Constructor	Description
RDFDatabaseBuilderQlever()

Method Summary

Modifier and Type	Method	Description
X	addPath(String source, org.apache.jena.graph.Node g)
protected void	addPath(Path source, org.apache.jena.graph.Node graph, List<String> encodings, org.apache.jena.riot.Lang lang)
RdfDatabaseQlever	build()	Determine the types of arguments: If all files are directly nq or ttl then use them as file arguments.
protected List<org.aksw.shellgebra.algebra.cmd.arg.CmdArg>	buildFileEntryArgs(Supplier<Path> hostTempPathSupp, org.aksw.shellgebra.algebra.cmd.arg.CmdArg cmdArg, org.apache.jena.graph.Node graph, org.apache.jena.riot.Lang lang)
protected List<org.aksw.shellgebra.algebra.cmd.arg.CmdArg>	buildInputSpec(Supplier<Path> hostTempPath)
org.aksw.shellgebra.algebra.cmd.arg.CmdArg	convertArgToOp(RDFDatabaseBuilderQlever.FileLoadEntry loadEntry)
String	getDockerImageName()
String	getDockerImageTag()
String	getFinalIndexName()
<T> T	getProperty(String key)
String	getStxxlMemory()
List<String>	getSupportedBackendContentTypes()	The content types supported by the backend.
protected String	langToFormat(org.apache.jena.riot.Lang lang)
X	setDockerImageName(String dockerImageName)
X	setDockerImageTag(String dockerImageTag)
X	setIndexName(String name)
X	setName(String name)
X	setOutputFolder(Path outputFolder)
X	setProperty(String key, Object value)
X	setStxxlMemory(String stxxlMemory)
X	setSysRuntime(org.aksw.shellgebra.exec.SysRuntime sysRuntime)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.aksw.jenax.dataaccess.sparql.creator.HasProperties

setProperties

Methods inherited from interface org.aksw.commons.util.obj.HasSelf

self

Methods inherited from interface org.aksw.jenax.dataaccess.sparql.creator.RDFDatabaseBuilder

addPath, addPath

Field Details

supportedInputLangs

public static final List<org.apache.jena.riot.Lang> supportedInputLangs

Langs supported by this database builder. The builder may convert e.g. rdf/xml to ntriples for the backend.

supportedBackendLangs

public static final List<org.apache.jena.riot.Lang> supportedBackendLangs

config

protected QleverIndexBuilderConfig config

shortNameMgr

protected org.aksw.jenax.arq.util.prefix.ShortNameMgr shortNameMgr

Mapping from absolute file paths on the host names to file names.

sysRuntime

protected org.aksw.shellgebra.exec.SysRuntime sysRuntime

args

protected List<RDFDatabaseBuilderQlever.FileLoadEntry> args

errorCollector

protected List<Map.Entry<org.apache.jena.riot.Lang,Throwable>> errorCollector

containerFifoPath

protected String containerFifoPath

Base path within the container where to mount any named pipes. Must end with '/'.

containerPathResolver

protected org.aksw.commons.util.docker.ContainerPathResolver containerPathResolver

A resolver for host paths if the database builder is used from within docker (dind).

Constructor Details

RDFDatabaseBuilderQlever

public RDFDatabaseBuilderQlever()

Method Details

getSupportedBackendContentTypes

public List<String> getSupportedBackendContentTypes()

The content types supported by the backend.

setSysRuntime

public X setSysRuntime(org.aksw.shellgebra.exec.SysRuntime sysRuntime)

setDockerImageName

public X setDockerImageName(String dockerImageName)

getDockerImageName

public String getDockerImageName()

setDockerImageTag

public X setDockerImageTag(String dockerImageTag)

getDockerImageTag

public String getDockerImageTag()

setName

public X setName(String name)

Specified by:

setName in interface RDFDatabaseBuilder<X extends RDFDatabaseBuilderQlever<X>>

setIndexName

public X setIndexName(String name)

setOutputFolder

public X setOutputFolder(Path outputFolder)

Specified by:

setOutputFolder in interface RDFDatabaseBuilder<X extends RDFDatabaseBuilderQlever<X>>

setStxxlMemory

public X setStxxlMemory(String stxxlMemory)

getStxxlMemory

public String getStxxlMemory()

addPath

public X addPath(String source,
 org.apache.jena.graph.Node g)
          throws IOException

Specified by:

addPath in interface RDFDatabaseBuilder<X extends RDFDatabaseBuilderQlever<X>>

Throws:

IOException

addPath

protected void addPath(Path source,
 org.apache.jena.graph.Node graph,
 List<String> encodings,
 org.apache.jena.riot.Lang lang)

convertArgToOp

public org.aksw.shellgebra.algebra.cmd.arg.CmdArg convertArgToOp(RDFDatabaseBuilderQlever.FileLoadEntry loadEntry)

buildInputSpec

protected List<org.aksw.shellgebra.algebra.cmd.arg.CmdArg> buildInputSpec(Supplier<Path> hostTempPath)
                                                                   throws NoSuchFileException

Throws:

NoSuchFileException

buildFileEntryArgs

protected List<org.aksw.shellgebra.algebra.cmd.arg.CmdArg> buildFileEntryArgs(Supplier<Path> hostTempPathSupp,
 org.aksw.shellgebra.algebra.cmd.arg.CmdArg cmdArg,
 org.apache.jena.graph.Node graph,
 org.apache.jena.riot.Lang lang)
                                                                       throws NoSuchFileException

Throws:

NoSuchFileException

langToFormat

protected String langToFormat(org.apache.jena.riot.Lang lang)

getFinalIndexName

public String getFinalIndexName()

build

public RdfDatabaseQlever build()
                        throws IOException,
InterruptedException

Determine the types of arguments: If all files are directly nq or ttl then use them as file arguments. Otherwise, build a stream from the argument: - A mix of nq and ttl is not supported. - Use cat or a codec to decode files - Use a flag whether to use process substitution or command grouping.

Specified by:

build in interface RDFDatabaseBuilder<X extends RDFDatabaseBuilderQlever<X>>

Returns:

Throws:

IOException

InterruptedException

setProperty

public X setProperty(String key,
 Object value)

Specified by:

setProperty in interface HasProperties<X extends RDFDatabaseBuilderQlever<X>>

getProperty

public <T> T getProperty(String key)

Specified by:

getProperty in interface HasProperties<X extends RDFDatabaseBuilderQlever<X>>