public override void SetReusableComponents(Analyzer analyzer, string fieldName, TokenStreamComponents components)
{
var componentsPerField = (IDictionary <string, TokenStreamComponents>)GetStoredValue(analyzer);
if (componentsPerField == null)
{
// LUCENENET-615: This needs to support nullable keys
componentsPerField = new JCG.Dictionary <string, TokenStreamComponents>();
SetStoredValue(analyzer, componentsPerField);
}
componentsPerField[fieldName] = components;
}
/// <summary>
/// Returns a <see cref="TokenStream"/> suitable for <paramref name="fieldName"/>, tokenizing
/// the contents of <c>text</c>.
/// <para/>
/// This method uses <see cref="CreateComponents(string, TextReader)"/> to obtain an
/// instance of <see cref="TokenStreamComponents"/>. It returns the sink of the
/// components and stores the components internally. Subsequent calls to this
/// method will reuse the previously stored components after resetting them
/// through <see cref="TokenStreamComponents.SetReader(TextReader)"/>.
/// <para/>
/// <b>NOTE:</b> After calling this method, the consumer must follow the
/// workflow described in <see cref="Analysis.TokenStream"/> to properly consume its contents.
/// See the <see cref="Lucene.Net.Analysis"/> namespace documentation for
/// some examples demonstrating this.
/// </summary>
/// <param name="fieldName"> the name of the field the created <see cref="Analysis.TokenStream"/> is used for </param>
/// <param name="reader"> the reader the streams source reads from </param>
/// <returns> <see cref="Analysis.TokenStream"/> for iterating the analyzed content of <see cref="TextReader"/> </returns>
/// <exception cref="ObjectDisposedException"> if the Analyzer is disposed. </exception>
/// <exception cref="IOException"> if an i/o error occurs (may rarely happen for strings). </exception>
/// <seealso cref="GetTokenStream(string, string)"/>
public TokenStream GetTokenStream(string fieldName, TextReader reader)
{
TokenStreamComponents components = reuseStrategy.GetReusableComponents(this, fieldName);
TextReader r = InitReader(fieldName, reader);
if (components == null)
{
components = CreateComponents(fieldName, r);
reuseStrategy.SetReusableComponents(this, fieldName, components);
}
else
{
components.SetReader(r);
}
return(components.TokenStream);
}
/// <summary>
/// Returns a <see cref="Analysis.TokenStream"/> suitable for <paramref name="fieldName"/>, tokenizing
/// the contents of <paramref name="text"/>.
/// <para/>
/// This method uses <see cref="CreateComponents(string, TextReader)"/> to obtain an
/// instance of <see cref="TokenStreamComponents"/>. It returns the sink of the
/// components and stores the components internally. Subsequent calls to this
/// method will reuse the previously stored components after resetting them
/// through <see cref="TokenStreamComponents.SetReader(TextReader)"/>.
/// <para/>
/// <b>NOTE:</b> After calling this method, the consumer must follow the
/// workflow described in <see cref="Analysis.TokenStream"/> to properly consume its contents.
/// See the <see cref="Lucene.Net.Analysis"/> namespace documentation for
/// some examples demonstrating this.
/// </summary>
/// <param name="fieldName">the name of the field the created <see cref="Analysis.TokenStream"/> is used for</param>
/// <param name="text">the <see cref="string"/> the streams source reads from </param>
/// <returns><see cref="Analysis.TokenStream"/> for iterating the analyzed content of <c>reader</c></returns>
/// <exception cref="ObjectDisposedException"> if the Analyzer is disposed. </exception>
/// <exception cref="IOException"> if an i/o error occurs (may rarely happen for strings). </exception>
/// <seealso cref="GetTokenStream(string, TextReader)"/>
public TokenStream GetTokenStream(string fieldName, string text)
{
TokenStreamComponents components = reuseStrategy.GetReusableComponents(this, fieldName);
ReusableStringReader strReader =
(components == null || components.reusableStringReader == null)
? new ReusableStringReader()
: components.reusableStringReader;
strReader.SetValue(text);
var r = InitReader(fieldName, strReader);
if (components == null)
{
components = CreateComponents(fieldName, r);
reuseStrategy.SetReusableComponents(this, fieldName, components);
}
else
{
components.SetReader(r);
}
components.reusableStringReader = strReader;
return(components.TokenStream);
}
/// <summary> /// Stores the given <see cref="TokenStreamComponents"/> as the reusable components for the /// field with the give name. /// </summary> /// <param name="analyzer"> Analyzer </param> /// <param name="fieldName"> Name of the field whose <see cref="TokenStreamComponents"/> are being set </param> /// <param name="components"> <see cref="TokenStreamComponents"/> which are to be reused for the field </param> public abstract void SetReusableComponents(Analyzer analyzer, string fieldName, TokenStreamComponents components);
public override void SetReusableComponents(Analyzer analyzer, string fieldName, TokenStreamComponents components)
{
SetStoredValue(analyzer, components);
}
/// <summary>
/// Wraps / alters the given <see cref="TokenStreamComponents"/>, taken from the wrapped
/// <see cref="Analyzer"/>, to form new components. It is through this method that new
/// <see cref="TokenFilter"/>s can be added by <see cref="AnalyzerWrapper"/>s. By default, the given
/// components are returned.
/// </summary>
/// <param name="fieldName">
/// Name of the field which is to be analyzed </param>
/// <param name="components">
/// <see cref="TokenStreamComponents"/> taken from the wrapped <see cref="Analyzer"/> </param>
/// <returns> Wrapped / altered <see cref="TokenStreamComponents"/>. </returns>
protected virtual TokenStreamComponents WrapComponents(string fieldName, TokenStreamComponents components)
{
return(components);
}
