com.verisign.epp.util

Class EPPSchemaCachingEntityResolver

java.lang.Object

com.verisign.epp.util.EPPSchemaCachingEntityResolver

All Implemented Interfaces:

org.apache.xerces.xni.parser.XMLEntityResolver, org.xml.sax.EntityResolver

public class EPPSchemaCachingEntityResolver
extends java.lang.Object
implements org.apache.xerces.xni.parser.XMLEntityResolver, org.xml.sax.EntityResolver

EPPSchemaCachingEntityResolver is the entity resolver that goes with EPPSchemaCachingParser. It supports caching schemas for the parser instance and looking up schema instances in the Classpath.

Constructor Summary

Constructors

Constructor and Description
EPPSchemaCachingEntityResolver(EPPSchemaCacher aSchemaCache) Create a new instance of EPPSchemaCachingEntityResolver.

Method Summary

Modifier and Type	Method and Description
org.xml.sax.InputSource	resolveEntity(java.lang.String aPublicId, java.lang.String aSystemId) Resolves the entity passed in when parsing the instance document.
org.apache.xerces.xni.parser.XMLInputSource	resolveEntity(org.apache.xerces.xni.XMLResourceIdentifier aResourceIdentifier) Implemented because of the XNI interface.

Methods inherited from class java.lang.Object

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

Constructor Detail

EPPSchemaCachingEntityResolver

public EPPSchemaCachingEntityResolver(EPPSchemaCacher aSchemaCache)

Create a new instance of EPPSchemaCachingEntityResolver. Resolves XML Schemas by looking them up in the classpath. As a param takes an instance of EPPSchemaCacher to call back on to cache a schema once it loads it.

Parameters:

aSchemaCache - An instance of EPPSchemaCacher to call back on to cache a schema once it loads it.

Method Detail

resolveEntity

public org.xml.sax.InputSource resolveEntity(java.lang.String aPublicId,
                                             java.lang.String aSystemId)
                                      throws org.xml.sax.SAXException,
                                             java.io.IOException

Resolves the entity passed in when parsing the instance document. Will try to find the schema from the classpath.

Specified by:

resolveEntity in interface org.xml.sax.EntityResolver

Parameters:

aPublicId - Public identifier of entity

aSystemId - System identifier of entity

Returns:

XML schema associated with the entity

Throws:

org.xml.sax.SAXException - Error locating the XML schema

java.io.IOException - Other error

org.apache.xerces.xni.XNIException - Error parsing the XML schema

resolveEntity

public org.apache.xerces.xni.parser.XMLInputSource resolveEntity(org.apache.xerces.xni.XMLResourceIdentifier aResourceIdentifier)
                                                          throws org.apache.xerces.xni.XNIException,
                                                                 java.io.IOException

Implemented because of the XNI interface. The entity resolver tries to find the resource in the classpath. This interface imlementation allows this resolver to be used as either the standard EntityResolver or one that can be used by the Xerces XNI components. If the resource can't be found an exception is thrown

Specified by:

resolveEntity in interface org.apache.xerces.xni.parser.XMLEntityResolver

Parameters:

aResourceIdentifier - The resource identifier that should be resolved.

Returns:

The XMLInputSource of the resource if found. Never returns null.

Throws:

org.apache.xerces.xni.XNIException - Error resolving name instance

java.io.IOException - Error loading XML schema