org.springframework.data.mongodb.gridfs

Class GridFsResource

java.lang.Object

org.springframework.core.io.AbstractResource

org.springframework.core.io.InputStreamResource

org.springframework.data.mongodb.gridfs.GridFsResource

All Implemented Interfaces:

InputStreamSource, Resource

public class GridFsResource
extends InputStreamResource

GridFSFile based Resource implementation.

Author:

Oliver Gierke, Christoph Strobl, Hartmut Lang, Mark Paluch

Constructor Summary

Constructors

Constructor and Description
GridFsResource(com.mongodb.client.gridfs.model.GridFSFile file) Creates a new GridFsResource from the given GridFSFile.
GridFsResource(com.mongodb.client.gridfs.model.GridFSFile file, InputStream inputStream) Creates a new GridFsResource from the given GridFSFile and InputStream.

Method Summary

Modifier and Type	Method and Description
static GridFsResource	absent(String filename) Obtain an absent GridFsResource.
long	contentLength()
boolean	exists()
String	getContentType() Returns the Resource's content type.
String	getDescription()
String	getFilename()
com.mongodb.client.gridfs.model.GridFSFile	getGridFSFile()
Object	getId() Returns the Resource's id.
InputStream	getInputStream()
long	lastModified()

Methods inherited from class org.springframework.core.io.InputStreamResource

equals, hashCode, isOpen

Methods inherited from class org.springframework.core.io.AbstractResource

createRelative, getFile, getFileForLastModifiedCheck, getURI, getURL, isFile, isReadable, readableChannel, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

GridFsResource

public GridFsResource(com.mongodb.client.gridfs.model.GridFSFile file)

Creates a new GridFsResource from the given GridFSFile.

Parameters:

file - must not be null.

GridFsResource

public GridFsResource(com.mongodb.client.gridfs.model.GridFSFile file,
                      InputStream inputStream)

Creates a new GridFsResource from the given GridFSFile and InputStream.

Parameters:

file - must not be null.

inputStream - must not be null.

Method Detail

absent

public static GridFsResource absent(String filename)

Obtain an absent GridFsResource.

Parameters:

filename - filename of the absent resource, must not be null.

Returns:

never null.

Since:

2.1

getInputStream

public InputStream getInputStream()
                           throws IOException,
                                  IllegalStateException

Specified by:

getInputStream in interface InputStreamSource

Overrides:

getInputStream in class InputStreamResource

Throws:

IOException

IllegalStateException

contentLength

public long contentLength()
                   throws IOException

Specified by:

contentLength in interface Resource

Overrides:

contentLength in class AbstractResource

Throws:

IOException

getFilename

public String getFilename()
                   throws IllegalStateException

Specified by:

getFilename in interface Resource

Overrides:

getFilename in class AbstractResource

Throws:

IllegalStateException

exists

public boolean exists()

Specified by:

exists in interface Resource

Overrides:

exists in class InputStreamResource

lastModified

public long lastModified()
                  throws IOException

Specified by:

lastModified in interface Resource

Overrides:

lastModified in class AbstractResource

Throws:

IOException

getDescription

public String getDescription()

Specified by:

getDescription in interface Resource

Overrides:

getDescription in class InputStreamResource

getId

public Object getId()

Returns the Resource's id.

Returns:

never null.

Throws:

IllegalStateException - if the file does not exists().

getGridFSFile

@Nullable
public com.mongodb.client.gridfs.model.GridFSFile getGridFSFile()

Returns:

the underlying GridFSFile. Can be null if absent.

Since:

2.2

getContentType

public String getContentType()

Returns the Resource's content type.

Returns:

never null.

Throws:

com.mongodb.MongoGridFSException - in case no content type declared on GridFSFile.getMetadata() nor provided via GridFSFile.getContentType().

IllegalStateException - if the file does not exists().