com.logicbus.cache.service.CacheObjectQuery Maven / Gradle / Ivy

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package com.logicbus.cache.service;

import java.util.HashMap;
import java.util.Map;

import com.logicbus.backend.message.YamlMessage;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

import com.alogic.cache.CacheObject;
import com.alogic.cache.naming.CacheStoreFactory;
import com.alogic.load.Store;
import com.logicbus.backend.AbstractServant;
import com.logicbus.backend.Context;
import com.logicbus.backend.ServantException;
import com.logicbus.backend.message.JsonMessage;
import com.logicbus.backend.message.XMLMessage;
import com.logicbus.models.servant.ServiceDescription;

/**
 * 查询Cache中的对象内容
 * 
 * @author duanyy
 * @since 1.6.4.3
 * 
 * @version 1.6.4.19 [duanyy 20151218] 

 * - 按照SONAR建议修改代码 

 *
 * @version 1.6.12.27 [20190403 duanyy] 

 * - 增加对yaml的支持 

 */
public class CacheObjectQuery extends AbstractServant {

	@Override
	protected int onXml(Context ctx){
		XMLMessage msg = (XMLMessage) ctx.asMessage(XMLMessage.class);

		String id = getArgument("cacheId",ctx);
		String objectId = getArgument("objectId",ctx);
		
		Document doc = msg.getDocument();
		Element root = msg.getRoot();
		
		Store found = CacheStoreFactory.get(id);
		if (found == null){
			throw new ServantException("clnt.e2007","Can not find a cache :" + id);
		}
		
		CacheObject object = found.load(objectId, true);
		
		if (object == null){
			throw new ServantException("user.data_not_found","Can not find the object :" + objectId);
		}
		
		Element eleCache = doc.createElement("cachedObject");
		object.report(eleCache);
		root.appendChild(eleCache);

		return 0;
	}
	
	@Override
	protected int onJson(Context ctx){
		JsonMessage msg = (JsonMessage)ctx.asMessage(JsonMessage.class);
		String id = getArgument("cacheId",ctx);
		String objectId = getArgument("objectId",ctx);
		Store found = CacheStoreFactory.get(id);
		if (found == null){
			throw new ServantException("clnt.e2007","Can not find a cache :" + id);
		}
		
		CacheObject object = found.load(objectId, true);
		
		if (object == null){
			throw new ServantException("user.data_not_found","Can not find the object :" + objectId);
		}
		
		Map map = new HashMap(); // NOSONAR
		object.report(map);
		msg.getRoot().put("cachedObject", map);
		
		return 0;
	}

	@Override
	protected int onYaml(Context ctx){
		YamlMessage msg = (YamlMessage)ctx.asMessage(YamlMessage.class);
		String id = getArgument("cacheId",ctx);
		String objectId = getArgument("objectId",ctx);
		Store found = CacheStoreFactory.get(id);
		if (found == null){
			throw new ServantException("clnt.e2007","Can not find a cache :" + id);
		}

		CacheObject object = found.load(objectId, true);

		if (object == null){
			throw new ServantException("user.data_not_found","Can not find the object :" + objectId);
		}

		Map map = new HashMap(); // NOSONAR
		object.report(map);
		msg.getRoot().put("cachedObject", map);

		return 0;
	}
	
	@Override
	protected void onDestroy() {
		// nothing to do
	}
	
	@Override
	protected void onCreate(ServiceDescription sd) {
		// nothing to do
	}

}