com.jiuxian.mossrose.quartz.QuartzJobOperation.java Source code

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Here is the source code for com.jiuxian.mossrose.quartz.QuartzJobOperation.java

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/**
 * Copyright 2015-2020 jiuxian.com.
 *  
 * 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.jiuxian.mossrose.quartz;

import com.google.common.collect.Iterables;
import com.jiuxian.mossrose.JobOperation;
import com.jiuxian.mossrose.JobOperation.JobRuntimeInfo.State;
import org.quartz.*;
import org.quartz.impl.matchers.GroupMatcher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

public class QuartzJobOperation implements JobOperation {

    private Scheduler scheduler;

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

    protected void setScheduler(Scheduler scheduler) {
        this.scheduler = scheduler;
    }

    @Override
    public List<JobRuntimeInfo> allJobs() {
        return ifSchedulerAvaliable(() -> {
            final Set<JobKey> jobKeys = scheduler.getJobKeys(GroupMatcher.anyJobGroup());
            if (jobKeys != null) {
                return jobKeys.stream().map(e -> getJobInfoByKey(e)).collect(Collectors.toList());
            }
            return null;
        });
    }

    @Override
    public void pauseJob(String group, String id) {
        ifSchedulerAvaliable(() -> scheduler.pauseJob(new JobKey(id, group)));
    }

    @Override
    public void resumeJob(String group, String id) {
        ifSchedulerAvaliable(() -> scheduler.resumeJob(new JobKey(id, group)));
    }

    @Override
    public void runJobNow(String group, String id) {
        ifSchedulerAvaliable(() -> scheduler.triggerJob(new JobKey(id, group)));
    }

    @Override
    public void pauseAllJob() {
        ifSchedulerAvaliable(scheduler::pauseAll);
    }

    @Override
    public void resumeAllJob() {
        ifSchedulerAvaliable(scheduler::resumeAll);
    }

    @Override
    public JobRuntimeInfo jobInfo(String group, String id) {
        return ifSchedulerAvaliable(() -> getJobInfoByKey(new JobKey(id, group)));
    }

    private JobRuntimeInfo getJobInfoByKey(final JobKey jobKey) {
        JobRuntimeInfo job = null;
        try {
            final JobDetail jobDetail = scheduler.getJobDetail(jobKey);
            // Only one trigger for a job
            final Trigger trigger = Iterables.getFirst(scheduler.getTriggersOfJob(jobKey), null);

            if (trigger != null) {
                job = new JobRuntimeInfo();

                job.setId(jobKey.getName());
                job.setGroup(jobKey.getGroup());
                job.setDescription(jobDetail.getDescription());
                job.setStartTime(trigger.getStartTime());
                job.setEndTime(trigger.getEndTime());
                job.setPreviousFireTime(trigger.getPreviousFireTime());
                job.setNextFireTime(trigger.getNextFireTime());
                job.setState(State.valueOf(scheduler.getTriggerState(trigger.getKey()).name()));
                if (trigger instanceof CronTrigger) {
                    job.setCron(((CronTrigger) trigger).getCronExpression());
                }
            }
        } catch (SchedulerException eInGettingJobInfo) {
            LOGGER.error(eInGettingJobInfo.getMessage(), eInGettingJobInfo);
        }
        return job;
    }

    private void ifSchedulerAvaliable(QuartzOp op) {
        try {
            if (isSchedulerAvaliable()) {
                op.apply();
            }
        } catch (SchedulerException e) {
            LOGGER.error(e.getMessage(), e);
        }
    }

    private <T> T ifSchedulerAvaliable(ResultQuartzOp<T> op) {
        try {
            if (isSchedulerAvaliable()) {
                return op.apply();
            }
        } catch (SchedulerException e) {
            LOGGER.error(e.getMessage(), e);
        }
        return null;
    }

    private boolean isSchedulerAvaliable() throws SchedulerException {
        return scheduler != null && scheduler.isStarted();
    }

    @FunctionalInterface
    public interface QuartzOp {
        void apply() throws SchedulerException;
    }

    @FunctionalInterface
    public interface ResultQuartzOp<T> {
        T apply() throws SchedulerException;
    }
}