DatastoreConfigurationCallback.java

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2012, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * 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.jboss.as.capedwarf.services;

import java.util.Collection;
import java.util.List;
import java.util.Set;

import com.google.common.collect.ListMultimap;
import org.hibernate.search.cfg.SearchMapping;
import org.hibernate.search.filter.ShardSensitiveOnlyFilter;
import org.infinispan.Cache;
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.configuration.cache.Configuration;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.configuration.cache.IndexingConfigurationBuilder;
import org.infinispan.query.backend.SearchWorkCreator;
import org.infinispan.query.impl.ComponentRegistryUtils;
import org.jboss.capedwarf.shared.compatibility.Compatibility;
import org.jboss.capedwarf.shared.components.ComponentRegistry;
import org.jboss.capedwarf.shared.components.SetKey;
import org.jboss.capedwarf.shared.components.SimpleKey;
import org.jboss.capedwarf.shared.components.Slot;
import org.jboss.capedwarf.shared.config.IndexesXml;
import org.jboss.capedwarf.shared.datastore.CapedwarfMultiSearchWorkCreator;
import org.jboss.capedwarf.shared.modules.ModuleInfo;

/**
 * Datastore cache configuration callback.
 *
 * @author <a href="mailto:ales.justin@jboss.org">Ales Justin</a>
 * @author <a href="mailto:mluksa@redhat.com">Marko Luksa</a>
 */
public class DatastoreConfigurationCallback extends BasicConfigurationCallback {
    private final List<IndexesXml> indexes;

    public DatastoreConfigurationCallback(CacheConfig config, String appId, ClassLoader classLoader, List<IndexesXml> indexes) {
        super(config, appId, classLoader);
        this.indexes = indexes;
    }

    public ConfigurationBuilder configure(Configuration configuration) {
        ConfigurationBuilder builder = super.configure(configuration);

        ComponentRegistry registry = ComponentRegistry.getInstance();
        boolean asycn = true;
        for (String module : ModuleInfo.getModules(appId).keySet()) {
            Compatibility compatibility = registry.getComponent(new SimpleKey<>(appId, module, Compatibility.class));
            if (compatibility.isEnabled(Compatibility.Feature.FORCE_ASYNC_DATASTORE)) {
                Set<String> callers = registry.getComponent(new SetKey<String>(appId, module, Slot.SYNC_HACK));
                if (callers != null && callers.isEmpty() == false) {
                    log.warning("Ignoring async force, found callers: " + callers);
                    asycn = false;
                    break;
                }
            } else {
                asycn = false;
                break;
            }
        }
        if (asycn) {
            log.info("Forcing async cache mode -- compatibility setting.");
            builder.clustering().cacheMode(CacheMode.DIST_ASYNC);
        }

        return builder;
    }

    @Override
    protected SearchMapping applyIndexing(ConfigurationBuilder builder) {
        SearchMapping mapping = super.applyIndexing(builder);

        String infinispanIndexName = getIndexName("com.google.appengine.api.datastore.Entity");
        IndexingConfigurationBuilder indexing = builder.indexing();

        int shardSize = 0;

        int i = 1;
        for (IndexesXml index : indexes) {
            final ListMultimap<String, IndexesXml.Index> list = index.getIndexes();
            final Collection<IndexesXml.Index> values = list.values();
            for (IndexesXml.Index ii : values) {
                String name = ii.getName();
                mapping.fullTextFilterDef(name, ShardSensitiveOnlyFilter.class);
                indexing.setProperty("hibernate.search." + infinispanIndexName + "." + i + ".indexName", name);
                indexing.setProperty("hibernate.search." + infinispanIndexName + ".sharding_strategy.index_name." + i, name);
                i++;
            }
            shardSize += values.size();
        }

        indexing.setProperty("hibernate.search." + infinispanIndexName + ".sharding_strategy", "org.jboss.capedwarf.shared.datastore.CapedwarfIndexShardingStrategy");
        indexing.setProperty("hibernate.search." + infinispanIndexName + ".sharding_strategy.nbr_of_shards", String.valueOf(1 + shardSize));

        return mapping;
    }

    @Override
    public void start(Cache cache) {
        super.start(cache);
        ComponentRegistryUtils.getQueryInterceptor(cache).setSearchWorkCreator(createSearchWorkCreator());
    }

    @SuppressWarnings("unchecked")
    protected SearchWorkCreator<Object> createSearchWorkCreator() {
        return new CapedwarfMultiSearchWorkCreator();
    }
}