org.apache.nifi.components.resource

Class StandardResourceReferences

java.lang.Object

org.apache.nifi.components.resource.StandardResourceReferences

All Implemented Interfaces:

ResourceReferences

public class StandardResourceReferences
extends Object
implements ResourceReferences

Field Summary

Fields

Modifier and Type	Field and Description
List<ResourceReference>	resourceReferences

Constructor Summary

Constructors

Constructor and Description
StandardResourceReferences(List<ResourceReference> resourceReferences)

Method Summary

Modifier and Type	Method and Description
private void	addChildren(File file, List<ResourceReference> flattened)
List<ResourceReference>	asList()
List<String>	asLocations()
List<URL>	asURLs()
boolean	equals(Object o)
ResourceReferences	flatten() Iterates through the Resource References and for any reference that may represent more than one resource, flattens the resource into a List of single-entity references.
ResourceReferences	flattenRecursively() Recursively iterates through the Resource References and for any reference that may represent more than one resource, flattens the resource into a List of single-entity references.
int	getCount()
int	hashCode()
private void	recurse(File file, List<ResourceReference> flattened)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

resourceReferences

public final List<ResourceReference> resourceReferences

Constructor Detail

StandardResourceReferences

public StandardResourceReferences(List<ResourceReference> resourceReferences)

Method Detail

asList

public List<ResourceReference> asList()

Specified by:

asList in interface ResourceReferences

Returns:

a List representation of all Resource References

asLocations

public List<String> asLocations()

Specified by:

asLocations in interface ResourceReferences

Returns:

a list of all Resource References' locations

asURLs

public List<URL> asURLs()

Specified by:

asURLs in interface ResourceReferences

Returns:

a list of all Resource References' URLs

getCount

public int getCount()

Specified by:

getCount in interface ResourceReferences

Returns:

the number of Resource References held

flatten

public ResourceReferences flatten()

Description copied from interface: ResourceReferences

Iterates through the Resource References and for any reference that may represent more than one resource, flattens the resource into a List of single-entity references. For example, consider that this ResourceReferences holds a single ResourceReference, of type DIRECTORY and the referenced directory contains 10 files. Calling ResourceReferences.asList() would return a single ResourceReference. But calling flatten() would return a new ResourceReferences type whose ResourceReferences.asList() method would return 10 ResourceReference objects, each with a ResourceType of FILE. The flatten operation is not recursive, meaning that if a DIRECTORY is flattened, any sub-directories will be dropped. If the contents of the subdirectories are to be retained, use ResourceReferences.flattenRecursively() instead.

Specified by:

flatten in interface ResourceReferences

Returns:

a flattened ResourceReferences

addChildren

private void addChildren(File file,
                         List<ResourceReference> flattened)

flattenRecursively

public ResourceReferences flattenRecursively()

Description copied from interface: ResourceReferences

Recursively iterates through the Resource References and for any reference that may represent more than one resource, flattens the resource into a List of single-entity references. For example, consider that this ResourceReferences holds a single ResourceReference, of type DIRECTORY and the referenced directory contains 10 files. Calling ResourceReferences.asList() would return a single ResourceReference. But calling flatten() would return a new ResourceReferences type whose ResourceReferences.asList() method would return 10 ResourceReference objects, each with a ResourceType of FILE. The flatten operation is recursive, meaning that if a DIRECTORY is encountered, its reference will be replaced with a new reference for each file, even if that file exists 100 levels deep in the directory structure.

Specified by:

flattenRecursively in interface ResourceReferences

Returns:

a flattened ResourceReferences

recurse

private void recurse(File file,
                     List<ResourceReference> flattened)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object