move help compiler/linker/indexer to a new module

we may want to use syntax highlighter class from svtools later,
which is not available for l10ntools

Change-Id: I5a06b77cb6935e3ef68015fb608aa26ac7c53fac

1 files changed, 79 insertions, 0 deletions

diff --git a/helpcompiler/source/HelpSearch.cxx b/helpcompiler/source/HelpSearch.cxx
new file mode 100644
index 000000000000..40022c22b505
--- /dev/null
+++ b/helpcompiler/source/HelpSearch.cxx
@@ -0,0 +1,79 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * Version: MPL 1.1 / GPLv3+ / LGPLv3+
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License or as specified alternatively below. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * Major Contributor(s):
+ * Copyright (C) 2012 Gert van Valkenhoef <g.h.m.van.valkenhoef@rug.nl>
+ *  (initial developer)
+ *
+ * All Rights Reserved.
+ *
+ * For minor contributions see the git repository.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
+ * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
+ * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
+ * instead of those above.
+ */
+
+#include <helpcompiler/HelpSearch.hxx>
+#include <osl/file.hxx>
+#include <osl/thread.hxx>
+
+#include "LuceneHelper.hxx"
+
+HelpSearch::HelpSearch(rtl::OUString const &lang, rtl::OUString const &indexDir)
+    : d_lang(lang)
+{
+    rtl::OUString ustrSystemPath;
+    osl::File::getSystemPathFromFileURL(indexDir, ustrSystemPath);
+    d_indexDir = rtl::OUStringToOString(ustrSystemPath, osl_getThreadTextEncoding());
+}
+
+bool HelpSearch::query(rtl::OUString const &queryStr, bool captionOnly,
+        std::vector<rtl::OUString> &rDocuments, std::vector<float> &rScores) {
+
+    lucene::index::IndexReader *reader = lucene::index::IndexReader::open(d_indexDir.getStr());
+    lucene::search::IndexSearcher searcher(reader);
+
+    TCHAR captionField[] = L"caption";
+    TCHAR contentField[] = L"content";
+    TCHAR *field = captionOnly ? captionField : contentField;
+
+    bool isWildcard = queryStr[queryStr.getLength() - 1] == L'*';
+    std::vector<TCHAR> aQueryStr(OUStringToTCHARVec(queryStr));
+    lucene::search::Query *pQuery;
+    if (isWildcard)
+        pQuery = _CLNEW lucene::search::WildcardQuery(_CLNEW lucene::index::Term(field, &aQueryStr[0]));
+    else
+        pQuery = _CLNEW lucene::search::TermQuery(_CLNEW lucene::index::Term(field, &aQueryStr[0]));
+
+    lucene::search::Hits *hits = searcher.search(pQuery);
+    for (unsigned i = 0; i < hits->length(); ++i) {
+        lucene::document::Document &doc = hits->doc(i); // Document* belongs to Hits.
+        wchar_t const *path = doc.get(L"path");
+        rDocuments.push_back(TCHARArrayToOUString(path != 0 ? path : L""));
+        rScores.push_back(hits->score(i));
+    }
+
+    _CLDELETE(hits);
+    _CLDELETE(pQuery);
+
+    reader->close();
+    _CLDELETE(reader);
+
+    return true;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */