Add simple audio tag add-on and rename FullText dir to fulltext.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39185 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/index_server/fulltext/FullTextAnalyser.cpp

@@ -0,0 +1,159 @@
+/*
+ * Copyright 2010, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Clemens Zeidler <[email protected]>
+ */
+#include "FullTextAnalyser.h"
+
+#include <new>
+
+#include <Directory.h>
+#include <String.h>
+#include <TranslatorFormats.h>
+#include <TranslatorRoster.h>
+
+#include "CLuceneDataBase.h"
+#include "IndexServerPrivate.h"
+
+
+#define DEBUG_FULLTEXT_ANALYSER
+#ifdef DEBUG_FULLTEXT_ANALYSER
+#include <stdio.h>
+#	define STRACE(x...) printf("FullTextAnalyser: " x)
+#else
+#	define STRACE(x...) ;
+#endif
+
+
+FullTextAnalyser::FullTextAnalyser(BString name, const BVolume& volume)
+	:
+	FileAnalyser(name, volume),
+
+	fWriteDataBase(NULL),
+	fNUncommited(0)
+{
+	BDirectory dir;
+	volume.GetRootDirectory(&dir);
+	fDataBasePath.SetTo(&dir);
+	fDataBasePath.Append(kIndexServerDirectory);
+	status_t status = fDataBasePath.Append(kFullTextDirectory);
+
+	if (status == B_OK)
+		fWriteDataBase = new CLuceneWriteDataBase(fDataBasePath);
+}
+
+
+FullTextAnalyser::~FullTextAnalyser()
+{
+	delete fWriteDataBase;
+}
+
+
+status_t
+FullTextAnalyser::InitCheck()
+{
+	if (fDataBasePath.InitCheck() != B_OK)
+		return fDataBasePath.InitCheck();
+	if (!fWriteDataBase)
+		return B_NO_MEMORY;
+
+	return fWriteDataBase->InitCheck();
+}
+
+
+void
+FullTextAnalyser::AnalyseEntry(const entry_ref& ref)
+{
+	if (!_InterestingEntry(ref))
+		return;
+
+	//STRACE("FullTextAnalyser AnalyseEntry: %s %s\n", ref.name, path.Path());
+	fWriteDataBase->AddDocument(ref);
+
+	fNUncommited++;
+	if (fNUncommited > 100)
+		LastEntry();
+}
+
+
+void
+FullTextAnalyser::DeleteEntry(const entry_ref& ref)
+{
+	if (_IsInIndexDirectory(ref))
+		return;
+	STRACE("FullTextAnalyser DeleteEntry: %s\n", ref.name);
+	fWriteDataBase->RemoveDocument(ref);
+}
+
+
+void
+FullTextAnalyser::MoveEntry(const entry_ref& oldRef, const entry_ref& newRef)
+{
+	if (!_InterestingEntry(newRef))
+		return;
+	STRACE("FullTextAnalyser MoveEntry: %s to %s\n", oldRef.name, newRef.name);
+	fWriteDataBase->RemoveDocument(oldRef);
+	AnalyseEntry(newRef);
+}
+
+
+void
+FullTextAnalyser::LastEntry()
+{
+	fWriteDataBase->Commit();
+	fNUncommited = 0;
+}
+
+
+bool
+FullTextAnalyser::_InterestingEntry(const entry_ref& ref)
+{
+	if (_IsInIndexDirectory(ref))
+		return false;
+
+	BFile file(&ref, B_READ_ONLY);
+	translator_info translatorInfo;
+	if (BTranslatorRoster::Default()->Identify(&file, NULL, &translatorInfo, 0,
+		NULL, B_TRANSLATOR_TEXT) != B_OK)
+		return false;
+
+	return true;
+}
+
+
+bool
+FullTextAnalyser::_IsInIndexDirectory(const entry_ref& ref)
+{
+	BPath path(&ref);
+	if (BString(path.Path()).FindFirst(fDataBasePath.Path()) == 0)
+		return true;
+
+	if (BString(path.Path()).FindFirst("/boot/common/cache/tmp") == 0)
+		return true;
+
+	return false;
+}
+
+
+FullTextAddOn::FullTextAddOn(image_id id, const char* name)
+	:
+	IndexServerAddOn(id, name)
+{
+	
+}
+
+
+FileAnalyser*
+FullTextAddOn::CreateFileAnalyser(const BVolume& volume)
+{
+	return new (std::nothrow)FullTextAnalyser(Name(), volume);
+}
+
+
+extern "C" IndexServerAddOn* (instantiate_index_server_addon)(image_id id,
+	const char* name)
+{
+	return new (std::nothrow)FullTextAddOn(id, name);
+}