Example usage for org.apache.lucene.search IndexSearcher search

Introduction

In this page you can find the example usage for org.apache.lucene.search IndexSearcher search.

Prototype

protected void search(List<LeafReaderContext> leaves, Weight weight, Collector collector) throws IOException

Source Link

Document

Lower-level search API.

Usage

From source file:com.zimbra.cs.index.LuceneIndex.java

License:Open Source License

/**
 * Runs a common search query + common sort order (and throw away the result) to warm up the Lucene cache and OS
 * file system cache.//from w  ww .  jav  a 2 s.  co  m
 */
@Override
public synchronized void warmup() {
    if (SEARCHER_CACHE.asMap().containsKey(mailbox.getId())
            || GAL_SEARCHER_CACHE.containsKey(mailbox.getId())) {
        return; // already warmed up
    }
    long start = System.currentTimeMillis();
    IndexSearcher searcher = null;
    try {
        searcher = (IndexSearcher) openSearcher();
        searcher.search(new TermQuery(new Term(LuceneFields.L_CONTENT, "zimbra")), 1,
                new Sort(new SortField(LuceneFields.L_SORT_DATE, SortField.STRING, true)));
    } catch (IOException e) {
        ZimbraLog.search.warn("Failed to warm up", e);
    } finally {
        Closeables.closeQuietly(searcher);
    }
    ZimbraLog.search.debug("WarmUpLuceneSearcher elapsed=%d", System.currentTimeMillis() - start);
}

From source file:concurrency.SearchFiles.java

License:Apache License

/** Simple command-line based search demo. */
public static void main(String[] args) throws Exception {
    String usage = "Usage:\tjava org.apache.lucene.demo.SearchFiles [-index dir] [-field f] [-repeat n] [-queries file] [-query string] [-raw] [-paging hitsPerPage]\n\nSee http://lucene.apache.org/core/4_1_0/demo/ for details.";
    if (args.length > 0 && ("-h".equals(args[0]) || "-help".equals(args[0]))) {
        System.out.println(usage);
        System.exit(0);/*from  w ww .  j a  va 2 s  . c  om*/
    }

    String index = "/Users/rene/learn/topic-index"; //"/Users/rene/learn/learn5/lucene/finder/index";
    String field = "contents";
    String queries = null;
    int repeat = 0;
    boolean raw = false;
    // regular search
    // String queryString = "computer";

    String queryString = "viewresolver spring"; //"fitness";// "ExecutorService";//"EventListener";
    // //"Country"; //"Preconditions";

    // wildcard query
    // String queryString = "te*t";

    // fuzzy query
    // String queryString = "roam~2";

    // phrase query
    // String queryString = "\"apache lucene\"~5";

    // boolean search
    // String queryString = "\"networks\" AND \"protocol\"";

    // boosted search
    // String queryString = "computer^10 crime";

    int hitsPerPage = 100;
    IndexReader reader = DirectoryReader.open(FSDirectory.open(Paths.get(index)));
    IndexSearcher searcher = new IndexSearcher(reader);
    Analyzer analyzer = new StandardAnalyzer();

    BufferedReader in = null;
    QueryParser parser = new QueryParser(field, analyzer);

    Query query = parser.parse(queryString);

    System.out.println("Searching for: " + query.toString(field));

    searcher.search(query, null, 1000); //hitsPerPage); //100);

    doSearch(in, searcher, query, hitsPerPage, raw, queries == null && queryString == null);

    reader.close();
}