ServiceFactory.java

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package org.glassfish.security.services.impl;

import java.util.List;

import org.glassfish.security.services.config.SecurityConfigurations;
import org.glassfish.security.services.config.SecurityConfiguration;

import com.sun.enterprise.config.serverbeans.Domain;

/**
 * The base security service factory class.
 */
public class ServiceFactory {
	/**
	 * Get the security service configuration for the specified service type.
	 * 
	 * Attempt to obtain the service configuration marked as default
	 * otherwise use the first configured service instance.
	 * 
	 * @param domain The current Domain configuration object
	 * @param type The type of the security service configuration
	 * 
	 * @return null when no service configurations are found
	 */
	public static <T extends SecurityConfiguration> T getSecurityServiceConfiguration(Domain domain, Class<T> type) {
		T config = null;

		// Look for security service configurations
		SecurityConfigurations secConfigs = domain.getExtensionByType(SecurityConfigurations.class);
		if (secConfigs != null) {
			// Look for the service configuration marked default
			config = secConfigs.getDefaultSecurityServiceByType(type);
			if (config == null) {
				// Obtain the first service configuration listed
				List<T> configs = secConfigs.getSecurityServicesByType(type);
				if (!configs.isEmpty())
					config = configs.get(0);
			}
		}

		// Return the service configuration
		return config;
	}
}