com.appleframework.monitor.service.AlertService.java Source code

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Here is the source code for com.appleframework.monitor.service.AlertService.java

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/**
 * Copyright (C) 2012 skymobi LTD
 *
 * Licensed under GNU GENERAL PUBLIC LICENSE  Version 3 (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.gnu.org/licenses/gpl-3.0.html
 *
 * 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 com.appleframework.monitor.service;

import com.google.common.collect.Lists;
import com.google.common.collect.MapMaker;
import com.appleframework.monitor.model.Alert;
import com.appleframework.monitor.model.MetricDog;
import com.appleframework.monitor.model.Project;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.data.domain.Sort;
import org.springframework.data.domain.Sort.Direction;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;

import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * @author Hill.Hu
 */
public class AlertService {

    private static Logger logger = LoggerFactory.getLogger(AlertService.class);

    private final static ScheduledExecutorService executor = Executors.newScheduledThreadPool(100);
    private static ConcurrentMap<String, AtomicInteger> notifyTimes;
    @Resource
    private List<AlertListener> alertListeners = Lists.newArrayList();
    @Resource
    ProjectService projectService;
    @Resource
    private MongoTemplate mongoTemplate;
    private String collectionName = "flash_dog_alerts";
    private int limitTimes = 10;
    private int limitMinutes = 60;

    public void setCheckSeconds(int checkSeconds) {
        this.checkSeconds = checkSeconds;
    }

    private int checkSeconds = 90;

    public void init() {

        executor.scheduleWithFixedDelay(new Runnable() {
            @Override
            public void run() {
                watch();
            }
        }, 15, checkSeconds, TimeUnit.SECONDS);
        notifyTimes = new MapMaker().expiration(limitMinutes, TimeUnit.MINUTES).makeMap();
    }

    private void watch() {
        for (Project project : projectService.findProjects()) {
            logger.info("start dogs of project {} ,dogs count={}", project.getName(),
                    project.getMetricDogs().size());
            for (final MetricDog dog : project.getMetricDogs()) {
                if (dog.inWorking()) {
                    startDog(project, dog);
                }

            }
        }
    }

    private void startDog(final Project project, final MetricDog dog) {
        //random a delay
        int delay = ((int) (Math.random() * 1000)) % 30;
        executor.schedule(new Runnable() {
            @Override
            public void run() {
                try {
                    logger.debug("start dog {}", dog);
                    List<Alert> alerts = dog.work(project);
                    notifyAlerts(alerts);
                } catch (Exception e) {
                    logger.error("start dog fail ", e);
                }
            }
        }, delay, TimeUnit.SECONDS);

    }

    private void notifyAlerts(List<Alert> alerts) {
        for (Alert alert : alerts) {
            if (isNeedNotify(alert)) {
                notify(alert);
            } else {
                logger.info("out of limit times={} ,not notify this alert", limitTimes);
            }
        }

    }

    protected boolean isNeedNotify(Alert alert) {
        if (alert == null)
            return false;
        String key = alert.getProjectName() + "_" + alert.getTitle();

        AtomicInteger init = new AtomicInteger(0);
        AtomicInteger times = notifyTimes.putIfAbsent(key, init);
        if (times == null)
            times = init;
        logger.debug("{} notify times ={}", key, times.get());
        return times.getAndIncrement() < limitTimes;
    }

    private void notify(Alert alert) {
        logger.info("dog fire {},notify listener {}", alert, alertListeners);
        mongoTemplate.save(alert, collectionName);
        for (AlertListener listener : alertListeners) {
            notify(alert, listener);
        }
    }

    private void notify(Alert alert, AlertListener listener) {
        try {
            listener.notify(alert);
        } catch (Exception e) {
            logger.error("notify listener fail ", e);
        }
    }

    public List<Alert> findAlerts(String projectName) {
        Query query = Query.query(Criteria.where("projectName").is(projectName)).limit(50);
        //query.sort().on("createTime", Order.DESCENDING);
        query.with(new Sort(Direction.DESC, "createTime"));
        return mongoTemplate.find(query, Alert.class, collectionName);
    }

    public void setProjectService(ProjectService projectService) {
        this.projectService = projectService;
    }

    public void setCollectionName(String collectionName) {
        this.collectionName = collectionName;
    }

    public void removeAlerts(String projectName) {
        mongoTemplate.remove(Query.query(Criteria.where("projectName").is(projectName)), collectionName);
    }

    public void setLimitTimes(int limitTimes) {
        this.limitTimes = limitTimes;
    }

    public void setLimitMinutes(int limitMinutes) {
        this.limitMinutes = limitMinutes;
    }

}