/*
*
* Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except
* in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.wso2.carbon.event.output.adapter.ui;
import com.google.gson.JsonObject;
import java.util.Map;
/**
* This interface is exposed as an OSGI service, which will be invoked by the local websocket endpoint to inform new subscriptions; and do un-subscriptions..
*/
public interface UIOutputCallbackControllerService {
/**
* Used to subscribe the session id and stream id for later web socket connectivity
*
* @param streamName - Stream name which user register to.
* @param version - Stream version which user uses.
* @param session - Session which user registered.
* @return
*/
public void subscribeWebsocket(String streamName, String version, SessionHolder session);
/**
* Used to return events per streamId
*
* @param streamName - Stream name which user register to.
* @param version - Stream version which user uses.
* @param sessionId - Session Id which user subscribed to.
* @return the events list.
*/
public void unsubscribeWebsocket(String streamName, String version, String sessionId);
/**
* Used to return events per http GET request.
*
* @param streamName - Stream name which user register to.
* @param version - Stream version which user uses.
* @param lastUpdatedTime - Last dispatched events time.
* @return the events list.
*/
public JsonObject retrieveEvents(String streamName, String version, String lastUpdatedTime);
}