SpringObjectJobFactory.cs :  » Inversion-of-Control-Dependency-Injection » Spring.net » Spring » Scheduling » Quartz » C# / CSharp Open Source

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C# / CSharp Open Source » Inversion of Control Dependency Injection » Spring.net 
Spring.net » Spring » Scheduling » Quartz » SpringObjectJobFactory.cs
/*
* Copyright 2002-2006 the original author or authors.
*
* 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.
*/
using Quartz;
using Quartz.Spi;
using Spring.Objects;

namespace Spring.Scheduling.Quartz{
  /// <summary> 
  /// Subclass of AdaptableJobFactory that also supports Spring-style
  /// dependency injection on object properties. This is essentially the direct
  /// equivalent of Spring's QuartzJobObject in the shape of a
  /// Quartz JobFactory.
  /// </summary>
  /// <remarks>
  /// Applies scheduler context, job data map and trigger data map entries
  /// as object property values. If no matching object property is found, the entry
  /// is by default simply ignored. This is analogous to QuartzJobObject's behavior.
  /// </remarks>
  /// <author>Juergen Hoeller</author>
  /// <seealso cref="SchedulerFactoryObject.JobFactory" />
  /// <seealso cref="QuartzJobObject" />
  public class SpringObjectJobFactory : AdaptableJobFactory, ISchedulerContextAware
  {
        private string[] ignoredUnknownProperties;
        private SchedulerContext schedulerContext;

    /// <summary> 
    /// Specify the unknown properties (not found in the object) that should be ignored.
    /// </summary>
    /// <remarks>
    /// Default is <code>null</code>, indicating that all unknown properties
    /// should be ignored. Specify an empty array to throw an exception in case
    /// of any unknown properties, or a list of property names that should be
    /// ignored if there is no corresponding property found on the particular
    /// job class (all other unknown properties will still trigger an exception).
    /// </remarks>
    public virtual string[] IgnoredUnknownProperties
    {
      set { ignoredUnknownProperties = value; }
    }

        /// <summary>
        /// Set the SchedulerContext of the current Quartz Scheduler.
        /// </summary>
        /// <value></value>
        /// <seealso cref="IScheduler.Context"/>
    public virtual SchedulerContext SchedulerContext
    {
      set { schedulerContext = value; }
    }


    /// <summary> 
    /// Create the job instance, populating it with property values taken
    /// from the scheduler context, job data map and trigger data map.
    /// </summary>
    protected override object CreateJobInstance(TriggerFiredBundle bundle)
    {
      ObjectWrapper ow = new ObjectWrapper(bundle.JobDetail.JobType);
      if (IsEligibleForPropertyPopulation(ow.WrappedInstance))
      {
        MutablePropertyValues pvs = new MutablePropertyValues();
        if (schedulerContext != null)
        {
          pvs.AddAll(schedulerContext);
        }
        pvs.AddAll(bundle.JobDetail.JobDataMap);
        pvs.AddAll(bundle.Trigger.JobDataMap);
        if (ignoredUnknownProperties != null)
        {
          for (int i = 0; i < ignoredUnknownProperties.Length; i++)
          {
            string propName = ignoredUnknownProperties[i];
            if (pvs.Contains(propName))
            {
              pvs.Remove(propName);
            }
          }
          ow.SetPropertyValues(pvs);
        }
        else
        {
          ow.SetPropertyValues(pvs, true);
        }
      }
      return ow.WrappedInstance;
    }

    /// <summary> 
    /// Return whether the given job object is eligible for having
    /// its object properties populated.
    /// <p>
    /// The default implementation ignores QuartzJobObject instances,
    /// which will inject object properties themselves.
    /// </p>
    /// </summary>
    /// <param name="jobObject">
    /// The job object to introspect.
    /// </param>
    /// <seealso cref="QuartzJobObject" />
    protected virtual bool IsEligibleForPropertyPopulation(object jobObject)
    {
      return (!(jobObject is QuartzJobObject));
    }
  }
}
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