Package org.springframework.beans.factory.xml

Class PluggableSchemaResolver

java.lang.Object

org.springframework.beans.factory.xml.PluggableSchemaResolver

All Implemented Interfaces:

EntityResolver

public class PluggableSchemaResolver
extends Object
implements EntityResolver

EntityResolver implementation that attempts to resolve schema URLs into local classpath resources using a set of mappings files.

By default, this class will look for mapping files in the classpath using the pattern: META-INF/spring.schemas allowing for multiple files to exist on the classpath at any one time.

The format of META-INF/spring.schemas is a properties file where each line should be of the form systemId=schema-location where schema-location should also be a schema file in the classpath. Since systemId is commonly a URL, one must be careful to escape any ':' characters which are treated as delimiters in properties files.

The pattern for the mapping files can be overridden using the PluggableSchemaResolver(ClassLoader, String) constructor.

Since:

2.0

Author:

Rob Harrop, Juergen Hoeller

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_SCHEMA_MAPPINGS_LOCATION	The location of the file that defines schema mappings.

Constructor Summary

Constructors

Constructor	Description
PluggableSchemaResolver(ClassLoader classLoader)	Loads the schema URL → schema file location mappings using the default mapping file pattern "META-INF/spring.schemas".
PluggableSchemaResolver(ClassLoader classLoader, String schemaMappingsLocation)	Loads the schema URL → schema file location mappings using the given mapping file pattern.

Method Summary

Modifier and Type	Method	Description
InputSource	resolveEntity(String publicId, String systemId)
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_SCHEMA_MAPPINGS_LOCATION

public static final String DEFAULT_SCHEMA_MAPPINGS_LOCATION

The location of the file that defines schema mappings. Can be present in multiple JAR files.

See Also:

• Constant Field Values

Constructor Details

PluggableSchemaResolver

public PluggableSchemaResolver(@Nullable
 ClassLoader classLoader)

Loads the schema URL → schema file location mappings using the default mapping file pattern "META-INF/spring.schemas".

Parameters:

classLoader - the ClassLoader to use for loading (can be null to use the default ClassLoader)

See Also:

• PropertiesLoaderUtils.loadAllProperties(String, ClassLoader)

PluggableSchemaResolver

public PluggableSchemaResolver(@Nullable
 ClassLoader classLoader,
 String schemaMappingsLocation)

Loads the schema URL → schema file location mappings using the given mapping file pattern.

Parameters:

classLoader - the ClassLoader to use for loading (can be null to use the default ClassLoader)

schemaMappingsLocation - the location of the file that defines schema mappings (must not be empty)

See Also:

• PropertiesLoaderUtils.loadAllProperties(String, ClassLoader)

Method Details

resolveEntity

@Nullable
public InputSource resolveEntity(@Nullable
 String publicId,
 @Nullable
 String systemId)
                          throws IOException

Specified by:

resolveEntity in interface EntityResolver

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object