de.lmu.ifi.dbs.elki.datasource

Class InputStreamDatabaseConnection

java.lang.Object

de.lmu.ifi.dbs.elki.datasource.AbstractDatabaseConnection

de.lmu.ifi.dbs.elki.datasource.InputStreamDatabaseConnection

All Implemented Interfaces:

DatabaseConnection, java.lang.AutoCloseable

Direct Known Subclasses:

FileBasedDatabaseConnection

@Title(value="Input-Stream based database connection")
 @Description(value="Parse an input stream such as STDIN into a database.")
public class InputStreamDatabaseConnection
extends AbstractDatabaseConnection
implements java.lang.AutoCloseable

Database connection expecting input from an input stream such as stdin.

Since:

0.1

Author:

Arthur Zimek

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	InputStreamDatabaseConnection.Parameterizer Parameterization class.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) java.util.function.Supplier<java.io.InputStream>	in The input stream to parse from.
(package private) java.io.InputStream	ins The stream that we are processing.
private static Logging	LOG The logger for this class.
(package private) Parser	parser Holds the instance of the parser.

Fields inherited from class de.lmu.ifi.dbs.elki.datasource.AbstractDatabaseConnection

filters, LABEL_CONCATENATION

Constructor Summary

Constructors

Constructor and Description
InputStreamDatabaseConnection(java.io.InputStream ins, java.util.List<ObjectFilter> filters, Parser parser) Constructor.
InputStreamDatabaseConnection(java.util.function.Supplier<java.io.InputStream> in, java.util.List<ObjectFilter> filters, Parser parser) Constructor.

Method Summary

Modifier and Type	Method and Description
void	close()
protected Logging	getLogger() Get the logger for this database connection.
MultipleObjectsBundle	loadData() Returns the initial data for a database.

Methods inherited from class de.lmu.ifi.dbs.elki.datasource.AbstractDatabaseConnection

invokeBundleFilters, invokeStreamFilters

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final Logging LOG

The logger for this class.

parser

Parser parser

Holds the instance of the parser.

in

java.util.function.Supplier<java.io.InputStream> in

The input stream to parse from.

ins

java.io.InputStream ins

The stream that we are processing.

Constructor Detail

InputStreamDatabaseConnection

public InputStreamDatabaseConnection(java.util.function.Supplier<java.io.InputStream> in,
                                     java.util.List<ObjectFilter> filters,
                                     Parser parser)

Constructor.

Parameters:

in - Input stream opener

filters - Filters to use

parser - the parser to provide a database

InputStreamDatabaseConnection

public InputStreamDatabaseConnection(java.io.InputStream ins,
                                     java.util.List<ObjectFilter> filters,
                                     Parser parser)

Constructor.

Parameters:

ins - Input stream to process

filters - Filters to use

parser - the parser to provide a database

Method Detail

loadData

public MultipleObjectsBundle loadData()

Description copied from interface: DatabaseConnection

Returns the initial data for a database.

Specified by:

loadData in interface DatabaseConnection

Returns:

a database object bundle

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.io.IOException

getLogger

protected Logging getLogger()

Description copied from class: AbstractDatabaseConnection

Get the logger for this database connection.

Specified by:

getLogger in class AbstractDatabaseConnection

Returns:

Logger