package foundation.version_doc;

import foundation.dao.DataPackage;
import foundation.dao.Filter;
import foundation.dao.version.ApplyRelation;
import foundation.dao.version.ApplyRelationBucket;
import foundation.data.entity.Entity;
import foundation.data.entity.EntitySet;
import foundation.data.object.DataObject;
import foundation.server.Initializer;

public class VersionLoader extends Initializer {

	@Override
	public void startUp() throws Exception {
		load();
	}

	@Override
	public void shutDown() throws Exception {
		
	}	
	
	public void load() throws Exception {
		//1. 加载版本定义
		loadVersionMetas();
		
		//2. 加载版本定义
		loadVersionApply();
		
		//3. register version provider
		registerVersionProvider();
	}

	private void loadVersionMetas() throws Exception {
		VersionBucket bucket = VersionBucket.getInstance();
		
		DataObject dataObject = DataObject.getInstance("sys_object_version");
		EntitySet entitySet = dataObject.getTableEntitySet(new Filter("is_active", "T"));
		
		for (Entity entity: entitySet) {
			VersionMeta meta = new VersionMeta();
			meta.load(entity);
			
			bucket.loadOne(meta);
		}		
	}

	private void loadVersionApply() throws Exception {
		ApplyRelationBucket bucket = ApplyRelationBucket.getInstance();
		
		DataObject dataObject = DataObject.getInstance("sys_object_apply");
		EntitySet entitySet = dataObject.getTableEntitySet();
		
		for (Entity entity: entitySet) {
			ApplyRelation relation = new ApplyRelation();
			relation.load(entity);
			
			bucket.loadOne(relation.getApplyDataName(),relation.getApplyTypeCode(), relation);
		}	
	}
	
	private void registerVersionProvider() {
		VersionCenter versionCenter = VersionCenter.getInstance();
		DataPackage.registerVersionProvider(versionCenter);
	}
	
}