org.nebula.service.processor.GetEventsProcessor.java Source code

Introduction

Here is the source code for org.nebula.service.processor.GetEventsProcessor.java

Source

/*
 * Copyright 2002-2015 the original author or authors.
 *
 * Licensed 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.nebula.service.processor;

import org.apache.ibatis.session.RowBounds;
import org.nebula.framework.client.request.GetEventsRequest;
import org.nebula.framework.client.response.GetEventsResponse;
import org.nebula.service.dao.entity.Event;
import org.nebula.service.dao.mapper.EventMapper;
import org.nebula.service.validator.GetEventsRequestValidator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.List;

import static org.nebula.service.util.JsonUtils.toObject;

@Component
public class GetEventsProcessor extends AbstractProcessor<GetEventsRequest, GetEventsResponse, Event> {

    @Autowired
    protected EventMapper eventMapper;

    @Autowired
    public GetEventsProcessor(GetEventsRequestValidator validator) {
        super(validator);
    }

    protected GetEventsResponse buildResponse(GetEventsRequest request, Event aEvent) {
        String instanceId = request.getInstanceId();

        RowBounds rowBounds = new RowBounds((request.getPageNo() - 1) * request.getPageSize(),
                request.getPageSize());

        List<Event> pevents = eventMapper.findByInstanceIdByPage(rowBounds, instanceId);

        List<org.nebula.framework.event.Event> events = new ArrayList<org.nebula.framework.event.Event>();
        for (Event event : pevents) {

            org.nebula.framework.event.Event eve = (org.nebula.framework.event.Event) toObject(event.getData(),
                    "org.nebula.framework.event." + event.getEventType());

            eve.setEventId(event.getId());
            eve.setPrecedingId(event.getPrecedingId());
            events.add(eve);

        }

        GetEventsResponse response = new GetEventsResponse();
        response.setEvents(events);
        response.setPageNo(request.getPageNo());
        response.setSize(events.size());
        response.setTotal(eventMapper.countByInstanceId(instanceId));

        return response;
    }

}