nyla.solutions.global.patterns.search.queryService.QuestFactory Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of nyla.solutions.global Show documentation

Nyla Solutions Global Java API provides support for basic application utilities (application configuration, data encryption, debugger and text processing).

The newest version!

package nyla.solutions.global.patterns.search.queryService;

import java.util.Comparator;

import nyla.solutions.global.exception.ConfigException;
import nyla.solutions.global.patterns.expression.BooleanExpression;
import nyla.solutions.global.patterns.search.queryService.QuestMgr;
import nyla.solutions.global.patterns.search.queryService.QuestService;
import nyla.solutions.global.patterns.servicefactory.ConfigServiceFactory;
import nyla.solutions.global.patterns.workthread.ExecutorBoss;
import nyla.solutions.global.util.Config;

/**
 * Quest factory useding 
 * @author Gregory Green
 *
 */
public class QuestFactory
{
	private QuestFactory()
	{}
	
	/**
	 * 
	 * @return singleton executor boss (thread pool)
	 */
	public static ExecutorBoss createExecutorBoss()
	{
		synchronized(QuestFactory.class)
		{
			if(executorBoss == null)
				executorBoss = new ExecutorBoss(threadCount);
		}
		return executorBoss;
	}// --------------------------------------------------------
	/**
	 *
	 * @return singleton instance of the factory
	 */
	public static QuestFactory getInstance()
	{
		return questFactory;
	}// --------------------------------------------------------
	
	/**
	 * 
	 * @param dataSource data source
	 * @return quest finder instance
	 */
	public QuestFinder createFinder(QuestCriteria criteria, String dataSource)
	{
		try
		{
			QuestFinder finder =  ConfigServiceFactory.getConfigServiceFactoryInstance().create(dataSource);
			finder.assignCriteria(criteria,dataSource);
			
			return finder;
		}
		catch(ConfigException e)
		{
			throw new ConfigException("Connect create new instance "+QuestFinder.class.getName()+" "+e.getMessage(),e);
		}
	}// --------------------------------------------------------
	/**
	 * 
	 * @param name the instance to compare
	 * @return the comparator by name
	 */
	public  Comparator createComparator(String name)
	{
		Comparator comparator = ConfigServiceFactory.getConfigServiceFactoryInstance().create(name);
		
		return comparator;
	}// --------------------------------------------------------
	/**
	 * 
	 * @param name the boolean expression name (can  be the full classpath name)
	 * @return the created instance
	 */
	public  BooleanExpression createBooleanExpression(String name)
	{
		BooleanExpression expression = ConfigServiceFactory.getConfigServiceFactoryInstance().create(name);
		return expression;
	}// --------------------------------------------------------
	/**
	 * 
	 * @return new QuestMgr();
	 */
	public QuestService createQuestService()
	{
		return new QuestMgr();
	}
	private static final QuestFactory questFactory = new QuestFactory();
	private static ExecutorBoss executorBoss = null;
	private static int threadCount = Config.getPropertyInteger(QuestFactory.class,"threadCount");
}