public class PluggableSchemaResolver
extends java.lang.Object
implements org.xml.sax.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 overidden using the
PluggableSchemaResolver(ClassLoader, String)
constructor
Modifier and Type | Field and Description |
---|---|
private java.lang.ClassLoader |
classLoader |
static java.lang.String |
DEFAULT_SCHEMA_MAPPINGS_LOCATION
The location of the file that defines schema mappings.
|
private static Log |
logger |
private java.util.Map<java.lang.String,java.lang.String> |
schemaMappings
Stores the mapping of schema URL -> local schema path
|
private java.lang.String |
schemaMappingsLocation |
Constructor and Description |
---|
PluggableSchemaResolver(java.lang.ClassLoader classLoader)
Loads the schema URL -> schema file location mappings using the default
mapping file pattern "META-INF/spring.schemas".
|
PluggableSchemaResolver(java.lang.ClassLoader classLoader,
java.lang.String schemaMappingsLocation)
Loads the schema URL -> schema file location mappings using the given
mapping file pattern.
|
Modifier and Type | Method and Description |
---|---|
private java.util.Map<java.lang.String,java.lang.String> |
getSchemaMappings()
Load the specified schema mappings lazily.
|
org.xml.sax.InputSource |
resolveEntity(java.lang.String publicId,
java.lang.String systemId) |
java.lang.String |
toString() |
public static final java.lang.String DEFAULT_SCHEMA_MAPPINGS_LOCATION
private static final Log logger
private final java.lang.ClassLoader classLoader
private final java.lang.String schemaMappingsLocation
private volatile java.util.Map<java.lang.String,java.lang.String> schemaMappings
public PluggableSchemaResolver(java.lang.ClassLoader classLoader)
classLoader
- the ClassLoader to use for loading
(can be null
) to use the default ClassLoader)PropertiesLoaderUtils.loadAllProperties(String, ClassLoader)
public PluggableSchemaResolver(java.lang.ClassLoader classLoader, java.lang.String schemaMappingsLocation)
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)PropertiesLoaderUtils.loadAllProperties(String, ClassLoader)
public org.xml.sax.InputSource resolveEntity(java.lang.String publicId, java.lang.String systemId) throws java.io.IOException
resolveEntity
in interface org.xml.sax.EntityResolver
java.io.IOException
private java.util.Map<java.lang.String,java.lang.String> getSchemaMappings()
public java.lang.String toString()
toString
in class java.lang.Object