net.shibboleth.ext.spring.resource

Class ConditionalResource

java.lang.Object

net.shibboleth.utilities.java.support.component.AbstractInitializableComponent

net.shibboleth.utilities.java.support.component.AbstractIdentifiedInitializableComponent

net.shibboleth.ext.spring.resource.ConditionalResource

All Implemented Interfaces:

Component, DestructableComponent, IdentifiedComponent, InitializableComponent, Resource, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware, org.springframework.core.io.InputStreamSource

public class ConditionalResource
extends AbstractIdentifiedInitializableComponent
implements org.springframework.core.io.Resource, org.springframework.beans.factory.BeanNameAware, Resource

A wrapper that guards a Resource that may be absent by returning an empty bean file instead.

Since:

5.4.0

Field Summary

Fields

Modifier and Type	Field and Description
private static String	EMPTY_RESOURCE Dummy content.
private org.slf4j.Logger	log Logger.
private String	logPrefix Cached log prefix.
private org.springframework.core.io.Resource	wrappedResource Resource to wrap.

Constructor Summary

Constructors

Constructor and Description
ConditionalResource(org.springframework.core.io.Resource wrapped) Constructor.

Method Summary

Modifier and Type	Method and Description
long	contentLength()
org.springframework.core.io.Resource	createRelative(String relativePath)
Resource	createRelativeResource(String relativePath)
boolean	exists()
String	getDescription()
File	getFile()
String	getFilename()
InputStream	getInputStream()
protected String	getLogPrefix() Return a prefix for logging messages for this component.
URI	getURI()
URL	getURL()
boolean	isOpen()
boolean	isReadable()
long	lastModified()
void	setBeanName(String name)
void	setId(String id)

Methods inherited from class net.shibboleth.utilities.java.support.component.AbstractIdentifiedInitializableComponent

doInitialize, getId

Methods inherited from class net.shibboleth.utilities.java.support.component.AbstractInitializableComponent

destroy, doDestroy, initialize, isDestroyed, isInitialized

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_RESOURCE

@Nonnull
 @NotEmpty
private static final String EMPTY_RESOURCE

Dummy content.

See Also:

Constant Field Values

log

@Nonnull
private final org.slf4j.Logger log

Logger.

logPrefix

@Nullable
private String logPrefix

Cached log prefix.

wrappedResource

@Nonnull
private final org.springframework.core.io.Resource wrappedResource

Resource to wrap.

Constructor Detail

ConditionalResource

public ConditionalResource(@Nonnull
                           org.springframework.core.io.Resource wrapped)

Constructor.

Parameters:

wrapped - the resource to wrap

Method Detail

setId

public void setId(@Nonnull @NotEmpty
                  String id)

Overrides:

setId in class AbstractIdentifiedInitializableComponent

getInputStream

public InputStream getInputStream()
                           throws IOException

Specified by:

getInputStream in interface Resource

Specified by:

getInputStream in interface org.springframework.core.io.InputStreamSource

Throws:

IOException

createRelativeResource

public Resource createRelativeResource(String relativePath)
                                throws IOException

Specified by:

createRelativeResource in interface Resource

Throws:

IOException

setBeanName

public void setBeanName(String name)

Specified by:

setBeanName in interface org.springframework.beans.factory.BeanNameAware

exists

public boolean exists()

Specified by:

exists in interface Resource

isReadable

public boolean isReadable()

Specified by:

isReadable in interface Resource

isOpen

public boolean isOpen()

Specified by:

isOpen in interface Resource

getURL

public URL getURL()
           throws IOException

Specified by:

getURL in interface Resource

Throws:

IOException

getURI

public URI getURI()
           throws IOException

Specified by:

getURI in interface Resource

Throws:

IOException

getFile

public File getFile()
             throws IOException

Specified by:

getFile in interface Resource

Throws:

IOException

contentLength

public long contentLength()
                   throws IOException

Specified by:

contentLength in interface Resource

Throws:

IOException

lastModified

public long lastModified()
                  throws IOException

Specified by:

lastModified in interface Resource

Throws:

IOException

createRelative

public org.springframework.core.io.Resource createRelative(String relativePath)
                                                    throws IOException

Throws:

IOException

getFilename

public String getFilename()

Specified by:

getFilename in interface Resource

getDescription

public String getDescription()

Specified by:

getDescription in interface Resource

getLogPrefix

@Nonnull
 @NotEmpty
protected String getLogPrefix()

Return a prefix for logging messages for this component.

Returns:

a string for insertion at the beginning of any log messages