Ok. There is a piece of code attached.. As I already said, I want to pass
that when the term "Lucene in Action" he finds only the 1st sentence.
2010/4/10 Shai Erera <[email protected]>
> Hi. I'm not sure I understand what you searched for. When you search
> for "Lucene in action", do you search it with the quotes or not? If
> with the quotes, then I don't understand how the 2nd dox is found.
>
> Do you perhaps have a test code you can share w/ us? It can be a short
> and simple main which creates an index w/ some documents and then
> searches them.
>
> Shai
>
> On Saturday, April 10, 2010, Fotos fotos <[email protected]> wrote:
> > Hello!
> > I am a beginner with Lucene. I'm needing to do the following:
> >
> > I have a text file with the following terms:
> >
> > "Lucene in action"
> > "Lucene"
> >
> > and a file with the following sentences:
> >
> > 1 - "Lucene in action now."
> > 2 - "Lucene for Dummies"
> > 3 - "Managing Gigabytes"
> >
> > I need to search in phrases of doc2, the terms of doc1.
> >
> > But in search of the word n-grama: "Lucene in Action", he also finds the
> 2nd
> > sentence.
> >
> > In this case, I want to meet with the term 1 ("Lucene in Action"), only
> the
> > first phrase and remove the term of the index, for not to be found when I
> > pass the term 2 ("Lucene")
> >
> > Railan Xisto
> > Web Developer
> >
>
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public class Main {
public static void main(String[] args) throws CorruptIndexException,
LockObtainFailedException, IOException, ParseException{
// Cria o analyzador
StandardAnalyzer analyzer = new
StandardAnalyzer(Version.LUCENE_CURRENT);
// Diretório virtual para o índice
Directory indexDirectory = new RAMDirectory();
// Cria o arquivo com tamanho ilimitado.
IndexWriter w = new IndexWriter(indexDirectory, analyzer, true,
IndexWriter.MaxFieldLength.UNLIMITED);
// Adiciona 4 documentos.
addDoc(w, "Lucene in Action now. Lucene is a tool");
addDoc(w, "Lucene for Dummies");
// Fecha o arquivo.
w.close();
File arquivo;
arquivo = new File("Docs/documento.txt"); /document where are the
terms for the search
FileInputStream fis = new FileInputStream(arquivo); //open the file
in memory
int ln;
String termos = "";
while ( (ln = fis.read()) !=-1 ) { // read the file
termos = termos + ( (char)ln );
}
fis.close();
// Faz o parse da consulta e cria uma query do lucene.
Query q = new QueryParser(Version.LUCENE_CURRENT, "title",
analyzer).parse(termos);
int maxHits = 10;
// Cria o acesso ao índice
IndexSearcher searcher = new IndexSearcher(indexDirectory);
// Prepara a coleção de resultado
TopScoreDocCollector collector =
TopScoreDocCollector.create(maxHits, true);
// Faz a pesquisa
searcher.search(q, collector);
// Separa os 10 itens mais relevantes para a consulta.
ScoreDoc[] hits = collector.topDocs().scoreDocs;
// Imprime os documentos retornados.
System.out.println("Found " + hits.length + " hits.");
for (int i = 0; i < hits.length; ++i) {
int docId = hits[i].doc;
Document d = searcher.doc(docId);
System.out.println((i + 1) + ". " + d.get("title"));
}
}
private static void addDoc(IndexWriter w,String text) throws IOException {
Document doc = new Document();
doc.add(new Field("title", text, Field.Store.YES,
Field.Index.ANALYZED));
w.addDocument(doc);
}
}
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