com.github.kagkarlsson.scheduler.task.helper.CustomTask Maven / Gradle / Ivy

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Simple persistent scheduler for scheduled tasks, recurring or ad-hoc.

There is a newer version: 15.0.0

/*
 * Copyright (C) Gustav Karlsson
 *
 * 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.github.kagkarlsson.scheduler.task.helper;

import com.github.kagkarlsson.scheduler.Clock;
import com.github.kagkarlsson.scheduler.SchedulerClient;
import com.github.kagkarlsson.scheduler.task.AbstractTask;
import com.github.kagkarlsson.scheduler.task.DeadExecutionHandler;
import com.github.kagkarlsson.scheduler.task.FailureHandler;
import com.github.kagkarlsson.scheduler.task.NextExecutionTime;
import com.github.kagkarlsson.scheduler.task.OnStartup;
import com.github.kagkarlsson.scheduler.task.SchedulableInstance;
import com.github.kagkarlsson.scheduler.task.SchedulableTaskInstance;
import com.github.kagkarlsson.scheduler.task.TaskInstance;
import java.time.Instant;
import java.util.function.Function;

public abstract class CustomTask extends AbstractTask implements OnStartup {
  private ScheduleOnStartup scheduleOnStartup;
  private final NextExecutionTime defaultExecutionTime;

  public CustomTask(
      String name,
      Class dataClass,
      ScheduleOnStartup scheduleOnStartup,
      Function defaultExecutionTime,
      FailureHandler failureHandler,
      DeadExecutionHandler deadExecutionHandler) {
    super(name, dataClass, failureHandler, deadExecutionHandler);
    this.scheduleOnStartup = scheduleOnStartup;
    this.defaultExecutionTime = NextExecutionTime.from(defaultExecutionTime);
  }

  @Override
  public SchedulableInstance schedulableInstance(String id) {
    return new SchedulableTaskInstance<>(new TaskInstance<>(getName(), id), defaultExecutionTime);
  }

  @Override
  public SchedulableInstance schedulableInstance(String id, T data) {
    return new SchedulableTaskInstance<>(
        new TaskInstance<>(getName(), id, data), defaultExecutionTime);
  }

  @Override
  public void onStartup(SchedulerClient scheduler, Clock clock) {
    if (scheduleOnStartup != null) {
      scheduleOnStartup.apply(scheduler, clock, this);
    }
  }

  @Override
  public String toString() {
    return "CustomTask name=" + getName();
  }
}