/// <summary>
/// Changes the current configuration of background tasks.
/// </summary>
/// <param name="configuration">New configuration</param>
/// <param name="maxInstances">Number of new instances</param>
public void Reconfigure(BackgroundTaskHostSettings configuration, int maxInstances = MAX_INSTANCES)
{
var wasInProgress = HasStarted;
if (HasStarted)
{
Stop();
}
Configuration = configuration;
MaxInstances = maxInstances;
if (wasInProgress)
{
Start();
}
}
public void ReadAndWriteWorksAsExpected()
{
// --- Arrange
const string PROVIDER_KEY = "queue";
var defaultProps = new TypedPropertySettingsCollection(
new List <TypedPropertySettings>
{
new TypedPropertySettings("prop1", "23", typeof(int)),
new TypedPropertySettings("prop2", "24", typeof(int)),
new TypedPropertySettings("prop3", "23", typeof(string)),
});
var defaultContext = new TaskExecutionContextSettings(PROVIDER_KEY, defaultProps);
var props = new TypedPropertySettingsCollection(
new List <TypedPropertySettings>
{
new TypedPropertySettings("prop1", "99", typeof(int)),
new TypedPropertySettings("prop2", "100", typeof(int)),
new TypedPropertySettings("prop3", "101", typeof(string)),
});
var optionalContext = new TaskExecutionContextSettings(PROVIDER_KEY, props);
var taskProps = new PropertySettingsCollection(
new List <PropertySettings>
{
new PropertySettings("prop1", "1000"),
new PropertySettings("prop2", "1001"),
});
var proc1 = new TaskProcessorSettings("Proc1", TaskProcessorSettings.SCHEDULED_TYPE, typeof(TaskBase), 3,
optionalContext, taskProps);
var proc2 = new TaskProcessorSettings("Proc2", TaskProcessorSettings.QUEUED_TYPE, typeof(TaskBase), 2,
null, taskProps);
var proc3 = new TaskProcessorSettings("Proc3", TaskProcessorSettings.DOUBLE_QUEUED, typeof(TaskBase), 1,
null);
var host = new BackgroundTaskHostSettings(defaultContext, new List <TaskProcessorSettings> {
proc1, proc2, proc3
});
// --- Act
var element = host.WriteToXml("BackgroundTaskHost");
Console.WriteLine(element);
var config = new BackgroundTaskHostSettings(element);
// --- Assert
config.DefaultContext.ShouldNotBeNull();
config.DefaultContext.ProviderKey.ShouldEqual(PROVIDER_KEY);
config.DefaultContext.Properties.ShouldHaveCountOf(3);
config.DefaultContext.Properties["prop1"].Type.ShouldEqual(typeof(int));
config.DefaultContext.Properties["prop1"].Value.ShouldEqual("23");
config.DefaultContext.Properties["prop2"].Type.ShouldEqual(typeof(int));
config.DefaultContext.Properties["prop2"].Value.ShouldEqual("24");
config.DefaultContext.Properties["prop3"].Type.ShouldEqual(typeof(string));
config.DefaultContext.Properties["prop3"].Value.ShouldEqual("23");
var taskProcessors = config.GetTaskProcessors();
taskProcessors.ShouldHaveCountOf(3);
taskProcessors[0].Name.ShouldEqual("Proc1");
taskProcessors[0].ProcessorType.ShouldEqual(TaskProcessorSettings.SCHEDULED_TYPE);
taskProcessors[0].TaskType.ShouldEqual(typeof(TaskBase));
taskProcessors[0].InstanceCount.ShouldEqual(3);
taskProcessors[0].Context.ShouldNotBeNull();
taskProcessors[0].Context.Properties.ShouldHaveCountOf(3);
taskProcessors[0].Context.Properties["prop1"].Type.ShouldEqual(typeof(int));
taskProcessors[0].Context.Properties["prop1"].Value.ShouldEqual("99");
taskProcessors[0].Context.Properties["prop2"].Type.ShouldEqual(typeof(int));
taskProcessors[0].Context.Properties["prop2"].Value.ShouldEqual("100");
taskProcessors[0].Context.Properties["prop3"].Type.ShouldEqual(typeof(string));
taskProcessors[0].Context.Properties["prop3"].Value.ShouldEqual("101");
taskProcessors[0].Properties.ShouldHaveCountOf(2);
taskProcessors[0].Properties["prop1"].Value.ShouldEqual("1000");
taskProcessors[0].Properties["prop2"].Value.ShouldEqual("1001");
taskProcessors[1].Name.ShouldEqual("Proc2");
taskProcessors[1].ProcessorType.ShouldEqual(TaskProcessorSettings.QUEUED_TYPE);
taskProcessors[1].TaskType.ShouldEqual(typeof(TaskBase));
taskProcessors[1].InstanceCount.ShouldEqual(2);
taskProcessors[1].Context.ShouldBeNull();
taskProcessors[1].Properties.ShouldHaveCountOf(2);
taskProcessors[1].Properties["prop1"].Value.ShouldEqual("1000");
taskProcessors[1].Properties["prop2"].Value.ShouldEqual("1001");
taskProcessors[2].Name.ShouldEqual("Proc3");
taskProcessors[2].ProcessorType.ShouldEqual(TaskProcessorSettings.DOUBLE_QUEUED);
taskProcessors[2].TaskType.ShouldEqual(typeof(TaskBase));
taskProcessors[2].InstanceCount.ShouldEqual(1);
taskProcessors[2].Context.ShouldBeNull();
taskProcessors[2].Properties.ShouldHaveCountOf(0);
}
/// <summary>
/// Creates a new instance of this class using the configuration specified
/// in the passed XML element
/// </summary>
/// <param name="element">Configuration element</param>
public BackgroundTaskHost(XElement element)
{
Configuration = new BackgroundTaskHostSettings(element);
}
/// <summary>
/// Creates a new instance of this class using the specified configuration.
/// </summary>
/// <param name="configuration">Host configuration</param>
/// <param name="maxInstances">Maximum number of instances allowed</param>
public BackgroundTaskHost(BackgroundTaskHostSettings configuration, int maxInstances = MAX_INSTANCES)
{
Configuration = configuration;
MaxInstances = maxInstances;
}
