Thank you guys so much for the info. I can't tell you how much has helped me.
I am sure there are others who probably are looking for the same information. I threw up a Git repository on GitHub and put Todd's code out There. I referenced the Lucene 4.8.0-beta00004 packages. I will add your comments regarding the API documentation into the Readme. https://github.com/agatlin/example-lucenenet-48-netcore11 On Wed, May 31, 2017 at 1:05 AM, Shad Storhaug <s...@shadstorhaug.com> wrote: > Thanks Todd. > > Anthony, > > The limitation of using Visual Studio 2015 is for *building* the > Lucene.Net solution for .NET Standard 1.5 within Visual Studio only. > Fortunately, building is something end users rarely have to do (and can be > done via command line without Visual Studio). The limitation of Visual > Studio version is due to Microsoft's pre-release .NET Standard tooling not > having support for other versions of Visual Studio. There are now releases > that have support for (only) Visual Studio 2017, but until very recently > they didn't work with NUnit3 Test Adapter in Visual Studio 2017. Not to > mention, there are still some issues with the new tooling that make them > not support older versions of NuGet with pre-release version schemes. > > Lucene 4.8.0-beta00004 is now available on NuGet: https://www.nuget.org/ > packages?q=lucene.net, and can be installed into end user projects that > are built using Visual Studio 2012 or higher. > > See the following answer for updates for the LuceneNetDemo: > https://stackoverflow.com/a/44061112 > > For now, you can use the Lucene 4.8.0 API documentation as a guide, > although there are some differences between the .NET and Java APIs, they > are very similar. https://lucene.apache.org/core/4_8_0/ > > > Thanks, > Shad Storhaug (NightOwl888) > > -----Original Message----- > From: Todd Lucas [mailto:m...@toddlucas.net] > Sent: Wednesday, May 31, 2017 9:45 AM > To: dev@lucenenet.apache.org > Subject: RE: Visual Studio 2017 / Working Demo for Current Build > > Hi Anthony, > > The beta works fine on VS 2017 for me. Be sure to check ‘Include > prerelease’ in NuGet. > > > > Here is a sample that I was using for sanity checking the beta. I couldn’t > find the original source. You’ll find various versions of it if you search > the Web. I just updated it to 4.8. > > > > I created a .NET Core console app (netcoreapp1.1) and it worked fine. > > > > using System; > > > > using Lucene.Net.Analysis; > > using Lucene.Net.Analysis.Standard; > > using Lucene.Net.Documents; > > using Lucene.Net.Index; > > using Lucene.Net.Store; > > using Lucene.Net.Util; > > using Lucene.Net.Search; > > > > namespace LuceneSample > > { > > class Program > > { > > static void Main(string[] args) > > { > > // > > // 1. Initialize > > // > > > > Directory directory = FSDirectory.Open("LuceneIndex"); > > Analyzer analyzer = new StandardAnalyzer( > LuceneVersion.LUCENE_48); > > using (IndexWriter writer = new IndexWriter(directory, new > IndexWriterConfig(LuceneVersion.LUCENE_48, analyzer))) > > { > > // > > // 2. Add documents to the index. > > // > > > > Document doc = new Document(); > > doc.Add(new StringField("id", "1", Field.Store.YES)); > > doc.Add(new TextField("postBody", "abc 123", > Field.Store.YES)); > > writer.AddDocument(doc); > > > > doc = new Document(); > > doc.Add(new StringField("id", "2", Field.Store.YES)); > > doc.Add(new TextField("postBody", "xyz abc", > Field.Store.YES)); > > writer.AddDocument(doc); > > > > // Close the writer > > // writer.Flush(); > > // writer.Close(); > > } > > > > // > > // 3. Create the query > > // > > > > Query query = new TermQuery(new Term("postBody", "abc")); > > > > // > > // Step 4 – Pass the Query to the IndexSearcher > > // > > > > // Setup searcher > > DirectoryReader indexReader = DirectoryReader.Open(directory); > > var indexSearcher = new IndexSearcher(indexReader); > > > > // Do the search > > TopDocs hits = indexSearcher.Search(query, 10); > > > > // > > // 5. Iterate over the results > > // > > > > int results = hits.TotalHits; > > Console.WriteLine("Found {0} results", results); > > for (int i = 0; i < results; i++) > > { > > ScoreDoc scoreDoc = hits.ScoreDocs[i]; > > int docId = scoreDoc.Doc; > > float score = scoreDoc.Score; > > > > Document doc = indexSearcher.Doc(docId); > > Console.WriteLine("Result num {0}, score {1}", i + 1, > score); > > Console.WriteLine("ID: {0}", doc.Get("id")); > > Console.WriteLine("Text found: {0}" + Environment.NewLine, > doc.Get("postBody")); > > } > > } > > } > > } > > > > From: Anthony Gatlin [mailto:anthony.gat...@happycatfish.com] > Sent: Tuesday, May 30, 2017 4:06 PM > To: dev@lucenenet.apache.org > Subject: Visual Studio 2017 / Working Demo for Current Build > > > > The LuceneNET GitHub site says that only Visual Studio 2015 is supported > for Lucene.NET 4.8 builds and that Visual Studio 2017 is not supported. > > > > Can anyone provide any insight as to why Visual Studio 2017 is not > supported and if this is something that will soon be resolved? > > > > What I am really wanting/needing to do is to actually get some kind of > functioning demo that works with the latest GitHub commit or MyGet build so > that I can actually begin learning Lucene in preparation for applying it on > a .NET Standard project. > > It seems like the namespaces and methods have radically changed over the > past few versions, and I have been unable to find a single demo that > actually works on 4.8 builds. > > > > Even Itamar Synershko's 4.8 demo ( https://channel9.msdn.com/ > Blogs/MVP-VisualStudio-Dev/LuceneNET-48-a-pre-release-introduction / > https://github.com/synhershko/LuceneNetDemo ) appears to have issues. > > For starters, I was unable to perform a .NET restore on the referenced > Lucene.NET packages. When I updated them with the latest version from > MyGet, the build failed. > > There is an Analyzer called the HtmlStripAnalyzerWrapper. > > using System.IO; > using Lucene.Net.Analysis; > using Lucene.Net.Analysis.CharFilters; > > namespace LuceneNetDemo.Analyzers > { > class HtmlStripAnalyzerWrapper : Analyzer > { > private readonly Analyzer _wrappedAnalyzer; > > public HtmlStripAnalyzerWrapper(Analyzer wrappedAnalyzer) > { > _wrappedAnalyzer = wrappedAnalyzer; > } > > public override TokenStreamComponents CreateComponents(string > fieldName, TextReader reader) > { > > return _wrappedAnalyzer.CreateComponents(fieldName, new > HTMLStripCharFilter(reader)); > } > } > } > > > > The build is throwing an error here. > > > > public override TokenStreamComponents CreateComponents(string > fieldName, TextReader reader) > { > > return _wrappedAnalyzer.CreateComponents(fieldName, new > HTMLStripCharFilter(reader)); > } > > > > > > > > It appears that the access modifiers for a method may have been changed > from public to protected. Being unfamiliar with Lucene, I am unsure how to > workaround the issue. > > > > Severity Code Description Project File Line Suppression State > > Error CS0507 'HtmlStripAnalyzerWrapper.CreateComponents(string, > TextReader)': cannot change access modifiers when overriding 'protected > internal' inherited member 'Analyzer.CreateComponents(string, > TextReader)' LuceneNetDemo E:\Projects\LuceneNetDemo\ > LuceneNetDemo\Analyzers\HtmlStripAnalyzerWrapper.cs 16 Active > > > > Severity Code Description Project File Line Suppression State > > Error CS1540 Cannot access protected member > 'Analyzer.CreateComponents(string, > TextReader)' via a qualifier of type 'Analyzer'; the qualifier must be of > type 'HtmlStripAnalyzerWrapper' (or derived from it) LuceneNetDemo > E:\Projects\LuceneNetDemo\LuceneNetDemo\Analyzers\HtmlStripAnalyzerWrapper.cs > 19 Active > > > > I am new to Lucene.NET. I want to learn it. I want to use it. I am > absolutely thrilled about the possibilities it offers. I am a little > discouraged because there just do not seem to up-to-date demos or much > recent documentation. > > If someone could point me in the right direction for getting a 4.8 demo > working, I would much appreciate it. I would also welcome links to any > up-to-date documentation. > > Many thanks! > > > > > > > > > >
