45 lines
1.6 KiB
C#
45 lines
1.6 KiB
C#
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using Lucene.Net.Index;
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using Portoa.Logging;
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using Portoa.Persistence;
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using VideoGameQuotes.Api.Persistence;
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namespace VideoGameQuotes.Api.Search.Lucene {
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public class LuceneEntityIndexBuilder<T> : ISearchIndexBuilder<T> where T : Entity<T, int> {
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private readonly ILogger logger;
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private readonly IndexWriter indexWriter;
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private readonly ISearchService<T> searchService;
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private readonly ILuceneDocumentHandler<T> documentHandler;
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public LuceneEntityIndexBuilder(IndexWriter indexWriter, ISearchService<T> searchService, ILuceneDocumentHandler<T> documentHandler, ILogger logger) {
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this.indexWriter = indexWriter;
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this.searchService = searchService;
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this.documentHandler = documentHandler;
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this.logger = logger;
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}
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public void BuildIndex() {
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logger.Info("Building lucene index");
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foreach (var quote in searchService.GetAllIndexableRecords()) {
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indexWriter.AddDocument(documentHandler.BuildDocument(quote));
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}
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indexWriter.Optimize();
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indexWriter.Commit();
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logger.Info("Finished building lucene index");
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}
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public void UpdateIndex(T entity) {
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if (entity.IsTransient()) {
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throw new SearchIndexException(string.Format("Cannot add a transient entity to the index ({0})", entity));
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}
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logger.Info(string.Format("Updating index for {0}", entity));
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//delete current document, if it exists
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indexWriter.DeleteDocuments(documentHandler.GetIdTerm(entity));
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indexWriter.AddDocument(documentHandler.BuildDocument(entity));
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indexWriter.Commit();
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logger.Info(string.Format("Finished updating index for {0}", entity));
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}
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}
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}
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