Package org.fcrepo.http.api

Class ExternalContentHandler

java.lang.Object

org.fcrepo.http.api.ExternalContentHandler

All Implemented Interfaces:

ExternalContent

public class ExternalContentHandler
extends Object
implements ExternalContent

This class is a helper for dealing with the External Content Link header and External Content itself, in the case of handling="copy". This class will verify that an External Content Link header is formatted correctly and help parse it, delivering parts of it when asked.

Since:

5/7/2018

Author:

bseeger

Field Summary

Fields inherited from interface org.fcrepo.kernel.api.models.ExternalContent

COPY, PROXY, REDIRECT

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ExternalContentHandler(String linkHeader)	Construct an ExternalContentHandler (helper)

Method Summary

Modifier and Type	Method	Description
InputStream	fetchExternalContent()	Fetch the external content
long	getContentSize()	Returns the size of the content located at the link header
String	getContentType()	Returns the content type located in the link header.
String	getHandling()	Retrieve handling information
URI	getURI()	Retrieve URI in link header
String	getURL()	Retrieve url in link header
boolean	isCopy()	Returns whether or not the handling parameter is "copy"
boolean	isProxy()	Returns whether or not the handling parameter is "proxy"
boolean	isRedirect()	Returns whether or not the handling parameter is "redirect"

Methods inherited from class java.lang.Object

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

Constructor Detail

ExternalContentHandler

protected ExternalContentHandler(String linkHeader)

Construct an ExternalContentHandler (helper)

Parameters:

linkHeader - actual link header from request

Method Detail

getContentType

public String getContentType()

Description copied from interface: ExternalContent

Returns the content type located in the link header.

Specified by:

getContentType in interface ExternalContent

Returns:

content type if in Link header, else null

getContentSize

public long getContentSize()

Description copied from interface: ExternalContent

Returns the size of the content located at the link header

Specified by:

getContentSize in interface ExternalContent

Returns:

content size

getHandling

public String getHandling()

Description copied from interface: ExternalContent

Retrieve handling information

Specified by:

getHandling in interface ExternalContent

Returns:

a String containing the type of handling requested ["proxy", "copy" or "redirect"]

getURL

public String getURL()

Description copied from interface: ExternalContent

Retrieve url in link header

Specified by:

getURL in interface ExternalContent

Returns:

a String of the URL that was in the Link header

getURI

public URI getURI()

Description copied from interface: ExternalContent

Retrieve URI in link header

Specified by:

getURI in interface ExternalContent

Returns:

a URI to the external content

isCopy

public boolean isCopy()

Description copied from interface: ExternalContent

Returns whether or not the handling parameter is "copy"

Specified by:

isCopy in interface ExternalContent

Returns:

boolean value representing whether or not the content handling is "copy"

isRedirect

public boolean isRedirect()

Description copied from interface: ExternalContent

Returns whether or not the handling parameter is "redirect"

Specified by:

isRedirect in interface ExternalContent

Returns:

boolean value representing whether or not the content handling is "redirect"

isProxy

public boolean isProxy()

Description copied from interface: ExternalContent

Returns whether or not the handling parameter is "proxy"

Specified by:

isProxy in interface ExternalContent

Returns:

boolean value representing whether or not the content handling is "proxy"

fetchExternalContent

public InputStream fetchExternalContent()

Description copied from interface: ExternalContent

Fetch the external content

Specified by:

fetchExternalContent in interface ExternalContent

Returns:

InputStream containing the external content