/*
* Copyright (C) 2011 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.jcr.impl.core.query.ispn;
import org.exoplatform.services.jcr.config.RepositoryConfigurationException;
import org.exoplatform.services.jcr.impl.core.query.ChangesFilterListsWrapper;
import org.exoplatform.services.jcr.impl.core.query.Indexer;
import org.exoplatform.services.jcr.impl.core.query.IndexerIoMode;
import org.exoplatform.services.jcr.impl.core.query.IndexerIoModeHandler;
import org.exoplatform.services.jcr.impl.core.query.QueryHandler;
import org.exoplatform.services.jcr.impl.core.query.SearchManager;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.infinispan.container.entries.InternalCacheEntry;
import org.infinispan.context.Flag;
import org.infinispan.loaders.AbstractCacheStore;
import org.infinispan.loaders.AbstractCacheStoreConfig;
import org.infinispan.loaders.CacheLoaderConfig;
import org.infinispan.loaders.CacheLoaderException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
/**
* Abstract Indexer Cache Loader defines default implementation of data processing received via cache.
*
* @author <a href="mailto:nikolazius@gmail.com">Nikolay Zamosenchuk</a>
* @version $Id: AbstractInputCacheStore.java 34360 2009-07-22 23:58:59Z nzamosenchuk $
*
*/
public abstract class AbstractIndexerCacheStore extends AbstractCacheStore
{
/**
* A map of all the indexers that has been registered
*/
protected final Map<String, Indexer> indexers = new HashMap<String, Indexer>();
protected static final Log LOG = ExoLogger.getLogger("exo.jcr.component.core.IndexerCacheLoader");//NOSONAR
/**
* This method will register a new Indexer according to the given parameters.
*
* @param searchManager
* @param parentSearchManager
* @param handler
* @param parentHandler
* @throws RepositoryConfigurationException
*/
public void register(SearchManager searchManager, SearchManager parentSearchManager, QueryHandler handler,
QueryHandler parentHandler) throws RepositoryConfigurationException
{
indexers.put(searchManager.getWsId(), new Indexer(searchManager, parentSearchManager, handler, parentHandler));
if (LOG.isDebugEnabled())
{
LOG.debug("Register " + searchManager.getWsId() + " " + this + " in " + indexers);
}
}
/**
* @see org.infinispan.loaders.CacheStore#store(org.infinispan.container.entries.InternalCacheEntry)
*/
public void store(InternalCacheEntry entry) throws CacheLoaderException
{
if (entry.getKey() instanceof ChangesKey && entry.getValue() instanceof ChangesFilterListsWrapper)
{
if (LOG.isDebugEnabled())
{
LOG.info("Received list wrapper, start indexing...");
}
// updating index
ChangesFilterListsWrapper wrapper = (ChangesFilterListsWrapper)entry.getValue();
final ChangesKey key = (ChangesKey)entry.getKey();
try
{
Indexer indexer = indexers.get(key.getWsId());
if (indexer == null)
{
LOG.warn("No indexer could be found for the cache entry " + key.toString());
if (LOG.isDebugEnabled())
{
LOG.debug("The current content of the map of indexers is " + indexers);
}
}
else if (wrapper.withChanges())
{
indexer.updateIndex(wrapper.getChanges(), wrapper.getParentChanges());
}
else
{
indexer.updateIndex(wrapper.getAddedNodes(), wrapper.getRemovedNodes(), wrapper.getParentAddedNodes(),
wrapper.getParentRemovedNodes());
}
}
finally
{
// Purge the cache to prevent memory leak
cache.getAdvancedCache()
.withFlags(Flag.CACHE_MODE_LOCAL, Flag.IGNORE_RETURN_VALUES)
.removeAsync(key);
}
}
}
/**
* {@inheritDoc}
*/
@Override
public void stop() throws CacheLoaderException
{
indexers.clear();
super.stop();
}
/**
* @return IndexerIoModeHandler instance
*/
public abstract IndexerIoModeHandler getModeHandler();
// ===================================================
/**
* @see org.infinispan.loaders.CacheLoader#getConfigurationClass()
*/
public Class<? extends CacheLoaderConfig> getConfigurationClass()
{
return AbstractCacheStoreConfig.class;
}
/**
* @see org.infinispan.loaders.CacheStore#fromStream(java.io.ObjectInput)
*/
public void fromStream(ObjectInput inputStream) throws CacheLoaderException
{
throw new UnsupportedOperationException("This operation is not supported by this component.");
}
/**
* @see org.infinispan.loaders.CacheStore#toStream(java.io.ObjectOutput)
*/
public void toStream(ObjectOutput outputStream) throws CacheLoaderException
{
throw new UnsupportedOperationException("This operation is not supported by this component.");
}
/**
* @see org.infinispan.loaders.AbstractCacheStore#purgeInternal()
*/
@Override
protected void purgeInternal() throws CacheLoaderException
{
// This cacheStore only accepts data
}
/**
* @see org.infinispan.loaders.CacheStore#clear()
*/
public void clear() throws CacheLoaderException
{
throw new UnsupportedOperationException("This operation is not supported by this component.");
}
/**
* @see org.infinispan.loaders.CacheStore#remove(java.lang.Object)
*/
public boolean remove(Object key) throws CacheLoaderException
{
// This cacheStore only accepts data
return true;
}
/**
* @see org.infinispan.loaders.CacheLoader#load(java.lang.Object)
*/
public InternalCacheEntry load(Object key) throws CacheLoaderException
{
// This cacheStore only accepts data
return null;
}
/**
* @see org.infinispan.loaders.CacheLoader#load(int)
*/
public Set<InternalCacheEntry> load(int numEntries) throws CacheLoaderException
{
// This cacheStore only accepts data
return Collections.emptySet();
}
/**
* @see org.infinispan.loaders.CacheLoader#loadAll()
*/
public Set<InternalCacheEntry> loadAll() throws CacheLoaderException
{
// This cacheStore only accepts data
return Collections.emptySet();
}
/**
* @see org.infinispan.loaders.CacheLoader#loadAllKeys(java.util.Set)
*/
public Set<Object> loadAllKeys(Set<Object> keysToExclude) throws CacheLoaderException
{
// This cacheStore only accepts data
return Collections.emptySet();
}
}