Package io.debezium.connector.mongodb

Class Filters

java.lang.Object

io.debezium.connector.mongodb.Filters

public final class Filters
extends Object

A utility that is contains various filters for acceptable database names, CollectionIds, and fields.

Author:

Randall Hauch

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Filters.FilterConfig

Field Summary

Fields

Modifier and Type	Field	Description
private final Predicate<CollectionId>	collectionFilter
private final Filters.FilterConfig	config
private final Predicate<String>	databaseFilter
private final FieldSelector	fieldSelector

Constructor Summary

Constructors

Constructor	Description
Filters(Configuration configuration)	Create an instance of the filters.

Method Summary

Modifier and Type	Method	Description
Predicate<CollectionId>	collectionFilter()	Get the predicate function that determines whether the given collection is to be included.
private Predicate<CollectionId>	createCollectionFilter()
private Predicate<String>	createDatabaseFilter()
private FieldSelector	createFieldSelector()
Predicate<String>	databaseFilter()	Get the predicate function that determines whether the given database is to be included.
private <T> Predicate<T>	excludes(String literalsOrPatterns, Function<T,String> conversion)
FieldSelector.FieldFilter	fieldFilterFor(CollectionId id)	Get the field filter for a given collection identifier.
Filters.FilterConfig	getConfig()
private <T> Predicate<T>	includes(String literalsOrPatterns, Function<T,String> conversion)
private boolean	isNotBuiltIn(CollectionId id)

Methods inherited from class java.lang.Object

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

Field Details

config

private final Filters.FilterConfig config

databaseFilter

private final Predicate<String> databaseFilter

collectionFilter

private final Predicate<CollectionId> collectionFilter

fieldSelector

private final FieldSelector fieldSelector

Constructor Details

Filters

public Filters(Configuration configuration)

Create an instance of the filters.

Parameters:

configuration - the configuration; may not be null

Method Details

createDatabaseFilter

private Predicate<String> createDatabaseFilter()

createCollectionFilter

private Predicate<CollectionId> createCollectionFilter()

createFieldSelector

private FieldSelector createFieldSelector()

databaseFilter

public Predicate<String> databaseFilter()

Get the predicate function that determines whether the given database is to be included.

Returns:

the database filter; never null

collectionFilter

public Predicate<CollectionId> collectionFilter()

Get the predicate function that determines whether the given collection is to be included.

Returns:

the collection filter; never null

fieldFilterFor

public FieldSelector.FieldFilter fieldFilterFor(CollectionId id)

Get the field filter for a given collection identifier.

Parameters:

id - the collection identifier, never null

Returns:

the field filter; never null

isNotBuiltIn

private boolean isNotBuiltIn(CollectionId id)

includes

private <T> Predicate<T> includes(String literalsOrPatterns,
 Function<T,String> conversion)

excludes

private <T> Predicate<T> excludes(String literalsOrPatterns,
 Function<T,String> conversion)

getConfig

public Filters.FilterConfig getConfig()