75 lines
1.8 KiB
C#
75 lines
1.8 KiB
C#
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using System;
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using System.Collections;
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using NUnit.Core.Extensibility;
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namespace NUnit.Core
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{
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/// <summary>
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/// ExtensionPoint is used as a base class for all
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/// extension points.
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/// </summary>
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public abstract class ExtensionPoint : IExtensionPoint
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{
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private string name;
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private IExtensionHost host;
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protected ArrayList extensions = new ArrayList();
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#region Constructor
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public ExtensionPoint(string name, IExtensionHost host)
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{
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this.name = name;
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this.host = host;
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}
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#endregion
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#region IExtensionPoint Members
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/// <summary>
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/// Get the name of this extension point
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/// </summary>
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public string Name
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{
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get { return this.name; }
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}
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/// <summary>
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/// Get the host that provides this extension point
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/// </summary>
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public IExtensionHost Host
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{
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get { return this.host; }
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}
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/// <summary>
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/// Install an extension at this extension point. If the
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/// extension object does not meet the requirements for
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/// this extension point, an exception is thrown.
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/// </summary>
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/// <param name="extension">The extension to install</param>
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public void Install(object extension)
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{
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if ( !ValidExtension( extension ) )
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throw new ArgumentException(
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extension.GetType().FullName + " is not {0} extension point", "extension" );
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extensions.Add( extension );
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}
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/// <summary>
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/// Removes an extension from this extension point. If the
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/// extension object is not present, the method returns
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/// without error.
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/// </summary>
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/// <param name="extension"></param>
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public void Remove(object extension)
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{
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extensions.Remove( extension );
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}
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#endregion
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#region Abstract Methods
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protected abstract bool ValidExtension(object extension);
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#endregion
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}
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}
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