org.springframework.geode.core.io

Interface ResourceResolver

All Known Subinterfaces:

ResourceCapableCacheDataImporterExporter.CacheResourceResolver, ResourceCapableCacheDataImporterExporter.ExportResourceResolver, ResourceCapableCacheDataImporterExporter.ImportResourceResolver

All Known Implementing Classes:

ResourceCapableCacheDataImporterExporter.AbstractCacheResourceResolver, ResourceCapableCacheDataImporterExporter.AbstractExportResourceResolver, ResourceCapableCacheDataImporterExporter.AbstractImportResourceResolver, ResourceCapableCacheDataImporterExporter.ClassPathImportResourceResolver, ResourceCapableCacheDataImporterExporter.FileSystemExportResourceResolver, ResourceLoaderResourceResolver, SingleResourceResolver

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ResourceResolver

Interface defining a contract encapsulating an algorithm/strategy for resolving Resources.

Since:

1.3.1.

See Also:

FunctionalInterface, Resource

Method Summary

Modifier and Type	Method and Description
default java.util.Optional<java.lang.ClassLoader>	getClassLoader() Gets the ClassLoader used by this ResourceResolver to resolve classpath Resources.
default org.springframework.core.io.Resource	require(java.lang.String location) Returns a non-null, existing Resource handle resolved from the given, non-null location (e.g.
java.util.Optional<org.springframework.core.io.Resource>	resolve(java.lang.String location) Tries to resolve a Resource handle from the given, non-null location (e.g.

Method Detail

getClassLoader

default java.util.Optional<java.lang.ClassLoader> getClassLoader()

Gets the ClassLoader used by this ResourceResolver to resolve classpath Resources. By default, this method will return a ClassLoader determined by ClassUtils.getDefaultClassLoader(), which first tries to return the Thread.getContextClassLoader(), then Class.getClassLoader(), and finally, ClassLoader.getSystemClassLoader().

Returns:

an Optional ClassLoader used to resolve classpath Resources.

See Also:

ClassUtils.getDefaultClassLoader(), ClassLoader, Optional

resolve

java.util.Optional<org.springframework.core.io.Resource> resolve(@NonNull
                                                                 java.lang.String location)

Tries to resolve a Resource handle from the given, non-null location (e.g. filesystem path).

Parameters:

location - location identifying the Resource to resolve; must not be null.

Returns:

an Optional Resource handle for the given location.

See Also:

Resource, Optional

require

@NonNull
default org.springframework.core.io.Resource require(@NonNull
                                                              java.lang.String location)

Returns a non-null, existing Resource handle resolved from the given, non-null location (e.g. filesystem path).

Parameters:

location - location identifying the Resource to resolve; must not be null.

Returns:

a non-null, existing Resource handle for the resolved location.

Throws:

ResourceNotFoundException - if a Resource cannot be resolved from the given location. A Resource is unresolvable if the given location does not exist (physically); see Resource.exists().

See Also:

Resource, resolve(String)