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SchedulerRepository.cs
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SchedulerRepository.cs
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#region License
/*
* All content copyright Marko Lahma, unless otherwise indicated. All rights reserved.
*
* 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.
*
*/
#endregion
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
namespace Quartz.Impl
{
/// <summary>
/// Holds references to Scheduler instances - ensuring uniqueness, and
/// preventing garbage collection, and allowing 'global' lookups.
/// </summary>
/// <author>James House</author>
/// <author>Marko Lahma (.NET)</author>
public class SchedulerRepository
{
private readonly Dictionary<string, IScheduler> schedulers;
private readonly object syncRoot = new object();
/// <summary>
/// Gets the singleton instance.
/// </summary>
/// <value>The instance.</value>
public static SchedulerRepository Instance { get; } = new SchedulerRepository();
private SchedulerRepository()
{
schedulers = new Dictionary<string, IScheduler>(StringComparer.OrdinalIgnoreCase);
}
/// <summary>
/// Binds the specified sched.
/// </summary>
/// <param name="sched">The sched.</param>
public virtual void Bind(IScheduler sched)
{
lock (syncRoot)
{
if (schedulers.ContainsKey(sched.SchedulerName))
{
throw new SchedulerException($"Scheduler with name '{sched.SchedulerName}' already exists.");
}
schedulers[sched.SchedulerName] = sched;
}
}
/// <summary>
/// Removes the specified sched name.
/// </summary>
/// <param name="schedName">Name of the sched.</param>
/// <returns></returns>
public virtual bool Remove(string schedName)
{
lock (syncRoot)
{
return schedulers.Remove(schedName);
}
}
/// <summary>
/// Lookups the specified sched name.
/// </summary>
public virtual Task<IScheduler?> Lookup(
string schedName,
CancellationToken cancellationToken = default)
{
lock (syncRoot)
{
schedulers.TryGetValue(schedName, out var retValue);
return Task.FromResult(retValue);
}
}
/// <summary>
/// Lookups all.
/// </summary>
/// <returns></returns>
public virtual Task<IReadOnlyList<IScheduler>> LookupAll(
CancellationToken cancellationToken = default)
{
lock (syncRoot)
{
IReadOnlyList<IScheduler> result = new List<IScheduler>(schedulers.Values);
return Task.FromResult(result);
}
}
}
}