org.apache.nifi.properties

Class BootstrapProperties

java.lang.Object

org.apache.nifi.properties.StandardReadableProperties

org.apache.nifi.properties.BootstrapProperties

All Implemented Interfaces:

ReadableProperties

public class BootstrapProperties
extends StandardReadableProperties

Properties representing bootstrap.conf.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BootstrapProperties.BootstrapPropertyKey

Field Summary

Fields

Modifier and Type	Field and Description
private Path	configFilePath
static BootstrapProperties	EMPTY An empty instance of BootstrapProperties.
private static String	PROPERTY_KEY_FORMAT
private String	propertyPrefix

Constructor Summary

Constructors

Constructor and Description
BootstrapProperties(String propertyPrefix, Properties properties, Path configFilePath)

Method Summary

Modifier and Type	Method and Description
private void	filterProperties(Properties properties) Includes only the properties starting with the propertyPrefix.
Path	getConfigFilePath() Returns the path to the bootstrap config file.
Optional<String>	getProperty(BootstrapProperties.BootstrapPropertyKey key) Returns the optional property value with the given BootstrapPropertyKey.
String	getProperty(String key) Ensures that blank or empty properties are returned as null.
String	getProperty(String key, String defaultValue) Ensures that blank or empty properties are returned as null.
private String	getPropertyKey(String subKey)
private static boolean	isBlank(String string)
String	toString()

Methods inherited from class org.apache.nifi.properties.StandardReadableProperties

getPropertyKeys, getRawProperties, size

Methods inherited from class java.lang.Object

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

Field Detail

PROPERTY_KEY_FORMAT

private static final String PROPERTY_KEY_FORMAT

See Also:

Constant Field Values

propertyPrefix

private final String propertyPrefix

configFilePath

private final Path configFilePath

EMPTY

public static final BootstrapProperties EMPTY

An empty instance of BootstrapProperties.

Constructor Detail

BootstrapProperties

public BootstrapProperties(String propertyPrefix,
                           Properties properties,
                           Path configFilePath)

Method Detail

getProperty

public String getProperty(String key,
                          String defaultValue)

Ensures that blank or empty properties are returned as null.

Specified by:

getProperty in interface ReadableProperties

Overrides:

getProperty in class StandardReadableProperties

Parameters:

key - The property key

defaultValue - The default value to use if the value is null or empty

Returns:

The property value (null if empty or blank)

getProperty

public String getProperty(String key)

Ensures that blank or empty properties are returned as null.

Specified by:

getProperty in interface ReadableProperties

Overrides:

getProperty in class StandardReadableProperties

Parameters:

key - The property key

Returns:

The property value (null if empty or blank)

getConfigFilePath

public Path getConfigFilePath()

Returns the path to the bootstrap config file.

Returns:

The path to the file

filterProperties

private void filterProperties(Properties properties)

Includes only the properties starting with the propertyPrefix.

Parameters:

properties - Unfiltered properties

getPropertyKey

private String getPropertyKey(String subKey)

getProperty

public Optional<String> getProperty(BootstrapProperties.BootstrapPropertyKey key)

Returns the optional property value with the given BootstrapPropertyKey.

Parameters:

key - A BootstrapPropertyKey, representing properties in bootstrap.conf

Returns:

The property value

toString

public String toString()

Overrides:

toString in class Object

isBlank

private static boolean isBlank(String string)