org.apache.stanbol.commons.solr.web.dispatch

Class ReferencedSolrDispatchFilter

java.lang.Object

org.apache.solr.servlet.SolrDispatchFilter

org.apache.stanbol.commons.solr.web.dispatch.DelegatingSolrDispatchFilter

org.apache.stanbol.commons.solr.web.dispatch.ReferencedSolrDispatchFilter

All Implemented Interfaces:

javax.servlet.Filter

public class ReferencedSolrDispatchFilter
extends DelegatingSolrDispatchFilter

Special version of the SolrDispatchFilter (implemented based on the DelegatingSolrDispatchFilter abstract class) that does NOT create a new CoreContainer, but retrieves it via a OSGI ServiceReference from a BundleContext. This implementation also ensures that removing the FIlter does NOT shutdown the CoreContainer but instead. releases the reference.

This does make is save to use this Filter in combination with a CoreContainer that is managed as a SolrServerAdapter.

See TODO to see how to use Filters in combination with the OSGI HttpService.

Author:

Rupert Westenthaler

Field Summary

Fields inherited from class org.apache.solr.servlet.SolrDispatchFilter

abortErrorMessage, cores, parsers, pathPrefix

Constructor Summary

Constructors

Constructor and Description
ReferencedSolrDispatchFilter(org.osgi.framework.BundleContext context, org.osgi.framework.ServiceReference serviceReference) Creates a new referenced Solr server dispatch filter.

Method Summary

Modifier and Type	Method and Description
protected org.apache.solr.core.CoreContainer	getCoreContainer() Getter for the CoreContainer used for the Solr dispatch filter
protected void	ungetCoreContainer() Releases the CoreContainer no longer needed by the Solr dispatch filter.

Methods inherited from class org.apache.stanbol.commons.solr.web.dispatch.DelegatingSolrDispatchFilter

createCoreContainer, destroy

Methods inherited from class org.apache.solr.servlet.SolrDispatchFilter

doFilter, doFilter, execute, getCores, getPathPrefix, init, sendError, setPathPrefix

Methods inherited from class java.lang.Object

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

Constructor Detail

ReferencedSolrDispatchFilter

public ReferencedSolrDispatchFilter(org.osgi.framework.BundleContext context,
                                    org.osgi.framework.ServiceReference serviceReference)

Creates a new referenced Solr server dispatch filter. Referenced because the CoreContainer is not created (as by the normal SolrDispatchFilter implementation) but looked up via the parsed BundleContext based on the ServiceReference.

Parameters:

context - the BundleContext used to get/unget the CoreContainer service

serviceReference - A ServiceReference to a CoreContainer registered as OSGI service.

Method Detail

getCoreContainer

protected org.apache.solr.core.CoreContainer getCoreContainer()

Description copied from class: DelegatingSolrDispatchFilter

Getter for the CoreContainer used for the Solr dispatch filter

Specified by:

getCoreContainer in class DelegatingSolrDispatchFilter

Returns:

ungetCoreContainer

protected void ungetCoreContainer()

Description copied from class: DelegatingSolrDispatchFilter

Releases the CoreContainer no longer needed by the Solr dispatch filter.

Specified by:

ungetCoreContainer in class DelegatingSolrDispatchFilter