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 *
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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// Portions Copyright [2016] [Payara Foundation and/or its affiliates]

/*
 * HASSOFactory.java
 *
 * Created on August 24, 2004, 5:27 PM
 */

package org.glassfish.web.ha.authenticator;


import com.sun.enterprise.container.common.spi.util.JavaEEIOUtils;

import com.sun.enterprise.web.SSOFactory;
import com.sun.enterprise.web.session.PersistenceType;
import com.sun.enterprise.security.web.GlassFishSingleSignOn;
import com.sun.enterprise.web.ServerConfigLookup;

import org.glassfish.gms.bootstrap.GMSAdapterService;
import org.glassfish.ha.store.api.BackingStore;
import org.glassfish.ha.store.api.BackingStoreConfiguration;
import org.glassfish.ha.store.api.BackingStoreException;
import org.glassfish.ha.store.api.BackingStoreFactory;
import javax.inject.Inject;

import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.api.PerLookup;

/**
 *
 * @author lwhite
 * @author Shing Wai Chan
 */
@Service
@PerLookup
public class HASSOFactory implements SSOFactory {
    private static final String STORE_NAME = "SSOStore";

    private static BackingStore ssoEntryMetadataBackingStore = null;

    @Inject
    private ServiceLocator services;
   
    @Inject
    private JavaEEIOUtils ioUtils;

    @Inject
    private ServerConfigLookup serverConfigLookup;

    /**
     * Create a SingleSignOn valve
     * HASingleSignOnValve is created is global availability-enabled
     * is true and sso-failover-enabled
     */
    @Override
    public GlassFishSingleSignOn createSingleSignOnValve(String virtualServerName) {
        PersistenceType persistenceType = serverConfigLookup.getPersistenceTypeFromConfig();
        String persistenceTypeStr = persistenceType != null? persistenceType.getType() : PersistenceType.REPLICATED.getType();
        return new HASingleSignOn(ioUtils,
                getSsoEntryMetadataBackingStore(persistenceTypeStr, STORE_NAME, services));
    }   
    
    protected static synchronized BackingStore
            getSsoEntryMetadataBackingStore(
            String persistenceType, String storeName, ServiceLocator services) {

        if (ssoEntryMetadataBackingStore == null) {
            BackingStoreFactory factory = services.getService(BackingStoreFactory.class, persistenceType);
            BackingStoreConfiguration conf =
                    new BackingStoreConfiguration();

            String clusterName = "";
            String instanceName = "";
            GMSAdapterService gmsAdapterService = services.getService(GMSAdapterService.class);
            if(gmsAdapterService.isGmsEnabled()) {
                clusterName = gmsAdapterService.getGMSAdapter().getClusterName();
                instanceName = gmsAdapterService.getGMSAdapter().getModule().getInstanceName();
            }

            conf.setStoreName(storeName)
                    .setClusterName(clusterName)
                    .setInstanceName(instanceName)
                    .setStoreType(persistenceType)
                    .setKeyClazz(String.class).setValueClazz(HASingleSignOnEntryMetadata.class);

            try {
                ssoEntryMetadataBackingStore = factory.createBackingStore(conf);
            } catch (BackingStoreException e) {
                e.printStackTrace();  
            }
        }

        return ssoEntryMetadataBackingStore;
    }
}