package foundation.icall;

import foundation.dao.preload.Bucket;
import foundation.data.mapping.Mappings;
import foundation.data.meta.MetaMonitor;
import foundation.data.meta.ReloadCheckResult;

public class MappingsBucket extends Bucket<Mappings> {
	
	private static MappingsBucket instance;
    private MetaMonitor monitor;
    
    private MappingsBucket() {
    	monitor = new MetaMonitor("getICallMappingsLastUpdateTime");
    }

	public static synchronized MappingsBucket getInstance() {
		if (instance != null) {
			return instance;
		}
		
		instance = new MappingsBucket();
		return instance;
	}

	@Override
	public Mappings get(String mappingId) {
		try {
			monitor.setParam("parentId", mappingId);
			ReloadCheckResult checkResult = monitor.getReloadCheckResult();
			
			if (checkResult.isNeedReload()) {
				synchronized (this) {
					Mappings mappings = super.get(mappingId);
				   	
				   	mappings = ICallLoader.loadOneMappings(mappingId, mappings);
				   	loadOne(mappingId, mappings);
				   	
			        return mappings;
				}
			}			
		}
		catch (Exception e) {
			e.printStackTrace();
		}
		
		return super.get(mappingId);
	}
	
}