Class SupplyingResourceDescriptor

java.lang.Object

de.xima.fc.workflow.SupplyingResourceDescriptor

All Implemented Interfaces:

IResourceDescriptor, Serializable

public final class SupplyingResourceDescriptor
extends Object
implements IResourceDescriptor

Implements IResourceDescriptor by lazily obtaining data from a supplier.

Since:

8.0.0

Author:

XIMA MEDIA GmbH

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
SupplyingResourceDescriptor(URI uri, IIOSupplier<InputStream> data, Charset charset)	Creates a new resource descriptor for the given URI with the given data.

Method Summary

Modifier and Type	Method	Description
static IResourceDescriptor	fromByteArray(URI uri, IIOSupplier<byte[]> data, Charset charset)	Creates a new resource descriptor for the given URI with the given data.
static IResourceDescriptor	fromString(URI uri, IIOSupplier<String> data, Charset charset)	Creates a new resource descriptor for the given URI with the given data.
URI	getAbsoluteUri()	Gets the absolute URI that identifies this resource.
Charset	getCharset()
InputStream	open()
String	toString()

Methods inherited from class Object

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

Constructor Details

SupplyingResourceDescriptor

public SupplyingResourceDescriptor(URI uri,
 IIOSupplier<InputStream> data,
 Charset charset)

Creates a new resource descriptor for the given URI with the given data.

Parameters:

uri - URI of the resource.

data - Data of the resource.

charset - Charset for plain text files. For binary files, pass null.

Method Details

getAbsoluteUri

public URI getAbsoluteUri()

Description copied from interface: IResourceDescriptor

Gets the absolute URI that identifies this resource. The URI should be unique for each resource. If there are different versions of the same resource, they should have different URIs, e.g. by including a version number in the URI. The URI is not used to access the binary data, but may be used e.g. for caching purposes.

The URI must be unique globally, i.e. also across different plugins. It is recommended to use a URI scheme that is unlikely to be used by other plugins, e.g. by including the Maven group and artifact ID.

It is an error for this method to return a URI where URI.isAbsolute() yields false.

Specified by:

getAbsoluteUri in interface IResourceDescriptor

Returns:

An absolute URI that identifies this resource.

getCharset

public Charset getCharset()

Specified by:

getCharset in interface IResourceDescriptor

Returns:

When this resource is a plain text resource: the charset or encoding of the text. Defaults to UTF_8.

open

public InputStream open()
                 throws IOException

Specified by:

open in interface IResourceDescriptor

Returns:

An input stream to the content of the resource.

Throws:

IOException - When the resource could not be opened.

toString

public String toString()

Overrides:

toString in class Object

fromString

public static IResourceDescriptor fromString(URI uri,
 IIOSupplier<String> data,
 Charset charset)

Creates a new resource descriptor for the given URI with the given data.

Parameters:

uri - URI of the resource.

data - Data of the resource.

charset - Encoding to use for reading the string's bytes.

Returns:

A resource descriptor for the given data.

fromByteArray

public static IResourceDescriptor fromByteArray(URI uri,
 IIOSupplier<byte[]> data,
 Charset charset)

Creates a new resource descriptor for the given URI with the given data.

Parameters:

uri - URI of the resource.

data - Data of the resource.

charset - Encoding of the string represented by the supplied bytes.

Returns:

A resource descriptor for the given data.