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

Class SolrServiceDispatchFilter

java.lang.Object

org.apache.solr.servlet.SolrDispatchFilter

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

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

All Implemented Interfaces:

javax.servlet.Filter

public class SolrServiceDispatchFilter
extends DelegatingSolrDispatchFilter

Rather than using directly a ServiceReference to parse the CoreContainer to be used for the dispatch filter this allows to parse the name or an own Filter that is used to track CoreContainer instances registered in the OSGI environment. In case of the empty Constructor a simple Class filter is used to track for CoreContainer services.

The CoreContainer to be used for the dispatch filter is searched during the the execution of the Servlets Filter.init(javax.servlet.FilterConfig).

This implementation does NOT remove the Filter or change the CoreContainer on any change in the OSGI environment. See SolrDispatchFilterComponent if you need this functionality.

Author:

Rupert Westenthaler

Field Summary

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

abortErrorMessage, cores, parsers, pathPrefix

Constructor Summary

Constructors

Constructor and Description
SolrServiceDispatchFilter(org.osgi.framework.BundleContext context) Creates a Dispatch filter for CoreContainer registered as OSGI services.
SolrServiceDispatchFilter(org.osgi.framework.BundleContext context, org.osgi.framework.Filter filter) Creates a tracking Solr dispatch filter using the parsed filter to select services.
SolrServiceDispatchFilter(org.osgi.framework.BundleContext context, String solrServerName, org.osgi.util.tracker.ServiceTrackerCustomizer stc) Creates a tracking Solr dispatch filter for the CoreContainer with the parsed SolrConstants.PROPERTY_SERVER_NAME value

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

SolrServiceDispatchFilter

public SolrServiceDispatchFilter(org.osgi.framework.BundleContext context,
                                 String solrServerName,
                                 org.osgi.util.tracker.ServiceTrackerCustomizer stc)
                          throws org.osgi.framework.InvalidSyntaxException

Creates a tracking Solr dispatch filter for the CoreContainer with the parsed SolrConstants.PROPERTY_SERVER_NAME value

Parameters:

context - the context

solrServerName - the name of the CoreContainer (value of the SolrConstants.PROPERTY_SERVER_NAME)

stc - An optional ServiceTrackerCustomizer used for the tracking the CoreContainer

Throws:

org.osgi.framework.InvalidSyntaxException - if the created Filter for the parsed name is invalid

SolrServiceDispatchFilter

public SolrServiceDispatchFilter(org.osgi.framework.BundleContext context,
                                 org.osgi.framework.Filter filter)

Creates a tracking Solr dispatch filter using the parsed filter to select services. Note that the filter MUST assure that all tracked services are CoreContainer instances!

Parameters:

context - the context

filter - the Filter that selects the CoreContainer service to be used for Request dispatching. the CoreContainer

SolrServiceDispatchFilter

public SolrServiceDispatchFilter(org.osgi.framework.BundleContext context)

Creates a Dispatch filter for CoreContainer registered as OSGI services. In case more than one CoreContainer is available the one with the highest Constants.SERVICE_RANKING will be used. Instances with no or the same Service rank are not sorted.

Parameters:

context - the context used to look for the CoreContainer

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