com.jive.myco.seyren.core.service.schedule.CheckScheduler.java Source code

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Here is the source code for com.jive.myco.seyren.core.service.schedule.CheckScheduler.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 com.jive.myco.seyren.core.service.schedule;

import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

import javax.annotation.PreDestroy;
import javax.inject.Inject;
import javax.inject.Named;

import org.springframework.scheduling.annotation.Scheduled;

import com.google.common.util.concurrent.ThreadFactoryBuilder;
import com.jive.myco.seyren.core.domain.Check;
import com.jive.myco.seyren.core.store.ChecksStore;

@Named
public class CheckScheduler {

    private final ScheduledExecutorService executor = Executors.newScheduledThreadPool(8,
            new ThreadFactoryBuilder().setNameFormat("seyren.check-scheduler-%s").setDaemon(false).build());
    private final ChecksStore checksStore;
    private final CheckRunnerFactory checkRunnerFactory;

    @Inject
    public CheckScheduler(ChecksStore checksStore, CheckRunnerFactory checkRunnerFactory) {
        this.checksStore = checksStore;
        this.checkRunnerFactory = checkRunnerFactory;
    }

    @Scheduled(fixedRateString = "${GRAPHITE_REFRESH:60000}")
    public void performChecks() {
        List<Check> checks = checksStore.getChecks(true, false).getValues();
        for (final Check check : checks) {
            executor.execute(checkRunnerFactory.create(check));
        }
    }

    @PreDestroy
    public void preDestroy() throws InterruptedException {
        executor.shutdown();
        executor.awaitTermination(500, TimeUnit.MILLISECONDS);
    }

}