EntityResolver implementation that tries to resolve entity references
through a org.springframework.core.io.ResourceLoader (usually,
relative to the resource base of an ApplicationContext), if applicable.
Extends DelegatingEntityResolver to also provide DTD and XSD lookup.
Allows to use standard XML entities to include XML snippets into an application context definition, for example to split a large XML file into various modules. The include paths can be relative to the application context's resource base as usual, instead of relative to the JVM working directory (the XML parser's default).
Note
In addition to relative paths, every URL that specifies a file in the current system root, i.e. the JVM working directory, will be interpreted relative to the application context too.
org.springframework.core.io.ResourceLoader , org.springframework.context.ApplicationContext
| Modifier and Type | Field and Description |
|---|---|
| private static final Log | |
| private final ResourceLoader |
| Access | Constructor and Description |
|---|---|
| public | ResourceEntityResolver(ResourceLoader
the ResourceLoader (or ApplicationContext)
to load XML entity includes with resourceLoader)Create a ResourceEntityResolver for the specified ResourceLoader (usually, an ApplicationContext). |
| Modifier and Type | Method and Description |
|---|---|
| public InputSource | resolveEntity(String
The public identifier of the external entity
being referenced, or null if none was supplied. publicId, String The system identifier of the external entity
being referenced. systemId)Overrides org. Implements org. Allow the application to resolve external entities. |
| protected InputSource | Returns: an InputSource object describing the new input source, or null to request that the parser open a regular URI connection to the system identifierthe public identifier of the external entity being referenced,
or null if none was supplied publicId, String the system identifier of the external entity being referenced,
representing the URL of the DTD or XSD systemId)A fallback method for |
| logger | back to summary |
|---|---|
| private static final Log logger | |
| resourceLoader | back to summary |
|---|---|
| private final ResourceLoader resourceLoader | |
| ResourceEntityResolver | back to summary |
|---|---|
| public ResourceEntityResolver(ResourceLoader resourceLoader) Create a ResourceEntityResolver for the specified ResourceLoader (usually, an ApplicationContext).
| |
| resolveEntity | back to summary |
|---|---|
| public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException Overrides org. Implements org. Doc from org. Allow the application to resolve external entities. The parser will call this method before opening any external entity except the top-level document entity. Such entities include the external DTD subset and external parameter entities referenced within the DTD (in either case, only if the parser reads external parameter entities), and external general entities referenced within the document element (if the parser reads external general entities). The application may request that the parser locate the entity itself, that it use an alternative URI, or that it use data provided by the application (as a character or byte input stream). Application writers can use this method to redirect external system identifiers to secure and/or local URIs, to look up public identifiers in a catalogue, or to read an entity from a database or other input source (including, for example, a dialog box). Neither XML nor SAX specifies a preferred policy for using public or system IDs to resolve resources. However, SAX specifies how to interpret any InputSource returned by this method, and that if none is returned, then the system ID will be dereferenced as a URL. If the system identifier is a URL, the SAX parser must resolve it fully before reporting it to the application.
| |
| resolveSchemaEntity | back to summary |
|---|---|
| protected InputSource resolveSchemaEntity(String publicId, String systemId) A fallback method for Subclasses can override this method to change the default behavior.
| |