com.ibm.portal.resolver.helper
Class CORLookupService

java.lang.Object
  com.ibm.portal.resolver.helper.CORLookupService

All Implemented Interfaces:

CORService, LookupService

public class CORLookupService
extends java.lang.Object
implements LookupService, CORService

Lookup service that implements itself by dispatching to a lookup service provided by the COR.

Field Summary

protected LookupService	defaultService default lookup service
static LookupService	SINGLETON Singleton that can be used to do COR lookups that don't require a fallback

Fields inherited from interface com.ibm.portal.resolver.LookupService

ATTR_CLASS, DEFAULT_EXTENSION_ID, EXTENSION_POINT_ID

Constructor Summary

CORLookupService()
initialize the lookup service without default lookup

CORLookupService(LookupService aDefaultService)
Initialize the lookup service passing a default service reference that will be used if no COR service can be found

Method Summary

protected LookupService	lookupService(java.net.URI uri, java.lang.Class<LookupService> cls, Context ctx) Uses the COR to find a service that exposes a particular interface.
Lookup	newLookup(java.net.URI uri, java.lang.String verb, java.util.Map<java.lang.String,java.lang.String[]> params, boolean bIsProtected, boolean bIsSecure, Context ctx) Constructs an XML source that produces an ATOM entry that describes the access points for the URI.

Methods inherited from class java.lang.Object

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

Field Detail

defaultService

protected final LookupService defaultService

default lookup service

SINGLETON

public static final LookupService SINGLETON

Singleton that can be used to do COR lookups that don't require a fallback

Constructor Detail

CORLookupService

public CORLookupService()

initialize the lookup service without default lookup

CORLookupService

public CORLookupService(LookupService aDefaultService)

Initialize the lookup service passing a default service reference that will be used if no COR service can be found

Parameters:

aDefaultService - default lookup service, may be null

Method Detail

lookupService

protected LookupService lookupService(java.net.URI uri,
                                      java.lang.Class<LookupService> cls,
                                      Context ctx)
                               throws org.eclipse.core.runtime.CoreException,
                                      ServiceNotFoundException

Uses the COR to find a service that exposes a particular interface. The fully specified classname of the interface is interpreted as the ID of the service

Parameters:

uri -

cls -

ctx -

Returns:

Throws:

org.eclipse.core.runtime.CoreException - - some COR stuff failed

ServiceNotFoundException - - the service could not be located

newLookup

public Lookup newLookup(java.net.URI uri,
                        java.lang.String verb,
                        java.util.Map<java.lang.String,java.lang.String[]> params,
                        boolean bIsProtected,
                        boolean bIsSecure,
                        Context ctx)
                 throws javax.xml.transform.TransformerException,
                        java.io.IOException

Description copied from interface: LookupService

Constructs an XML source that produces an ATOM entry that describes the access points for the URI. The method may return null in case there is no customized lookup for the URI / params combination. In this case a client is free to select a default lookup. If this is not the intended behaviour, the service can either return a dummy lookup object that returns an empty source or throw an exception.

Specified by:

newLookup in interface LookupService

Parameters:

uri - POC URI

verb - lookup verb

params - parameter map

bIsProtected - true, if the lookup should refer to the protected context

bIsSecure - true, if the lookup should refer to the secure context

ctx - COR context

Returns:

lookup object that can produce an ATOM feed that describes the entry point and meta information for a service that can handle the URI. Implementors may return null to indicate that the service does not handle the lookup for the specified input parameters.

Throws:

javax.xml.transform.TransformerException - - if the lookup cannot be created

java.io.IOException - - if an IO error occurred when trying to do the lookup