EmptyEntityResolver (Solr 9.2.1 solrj API)

java.lang.Object
- org.apache.solr.common.EmptyEntityResolver

```
public final class EmptyEntityResolver
extends Object
```
This class provides several singletons of entity resolvers used by SAX and StAX in the Java API. This is needed to make secure XML parsers, that don't resolve external entities from untrusted sources.
This class also provides static methods to configure SAX and StAX parsers to be safe.
Parsers will get an empty, closed stream for every external entity, so they will not fail while parsing (unless the external entity is needed for processing!).

Field Summary

Fields
Modifier and Type Field Description

static EntityResolver SAX_INSTANCE

static XMLResolver STAX_INSTANCE

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`configureSAXParserFactory(SAXParserFactory saxFactory)`	Configures the given `SAXParserFactory` to do secure XML processing of untrusted sources.
`static void`	`configureXMLInputFactory(XMLInputFactory inputFactory)`	Configures the given `XMLInputFactory` to not parse external entities.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - SAX_INSTANCE
```
public static final EntityResolver SAX_INSTANCE
```
  - STAX_INSTANCE
```
public static final XMLResolver STAX_INSTANCE
```
- Method Detail
  - configureSAXParserFactory
```
public static void configureSAXParserFactory(SAXParserFactory saxFactory)
```
    Configures the given SAXParserFactory to do secure XML processing of untrusted sources. It is required to also set SAX_INSTANCE on the created XMLReader.
    
    See Also:
    
    SAX_INSTANCE
  - configureXMLInputFactory
```
public static void configureXMLInputFactory(XMLInputFactory inputFactory)
```
    Configures the given XMLInputFactory to not parse external entities. No further configuration on is needed, all required entity resolvers are configured.