org.ngrinder.agent.service.LocalAgentService.java Source code

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Here is the source code for org.ngrinder.agent.service.LocalAgentService.java

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/*
 * 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.ngrinder.agent.service;

import org.apache.commons.collections.CollectionUtils;
import org.ngrinder.agent.repository.AgentManagerRepository;
import org.ngrinder.infra.config.Config;
import org.ngrinder.model.AgentInfo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.PostConstruct;
import java.util.List;

import static org.ngrinder.agent.repository.AgentManagerSpecification.startWithRegion;

@Component
public class LocalAgentService {

    @Autowired
    private AgentManagerRepository agentManagerRepository;

    private static final Logger LOGGER = LoggerFactory.getLogger(LocalAgentService.class);

    @Autowired
    private Config config;

    private boolean clustered;
    private String region;

    @PostConstruct
    public void init() {
        clustered = config.isClustered();
        region = config.getRegion();
    }

    @Cacheable("local_agents")
    public List<AgentInfo> getLocalAgents() {
        LOGGER.debug("Local Cache is Updated.");
        if (clustered) {
            return agentManagerRepository.findAll(startWithRegion(region));
        } else {
            return agentManagerRepository.findAll();
        }
    }

    @Transactional
    public void updateAgents(List<AgentInfo> newAgents, List<AgentInfo> updatedAgents,
            List<AgentInfo> stateUpdatedAgents, List<AgentInfo> removedAgents) {
        if (CollectionUtils.isNotEmpty(newAgents)) {
            agentManagerRepository.save(newAgents);
        }
        if (CollectionUtils.isNotEmpty(updatedAgents)) {
            agentManagerRepository.save(updatedAgents);
        }
        for (AgentInfo each : stateUpdatedAgents) {
            agentManagerRepository.updateState(each.getId(), each.getState());
        }
        if (CollectionUtils.isNotEmpty(removedAgents)) {
            agentManagerRepository.delete(removedAgents);
        }
        agentManagerRepository.flush();
    }

    @Transactional
    public void doSthInTransaction(Runnable runnable) {
        runnable.run();
    }

    @CacheEvict("local_agents")
    public void expireCache() {

    }
}