*** empty log message ***

src/rcldb/rcldb.cpp

@@ -0,0 +1,121 @@
+#ifndef lint
+static char rcsid[] = "@(#$Id: rcldb.cpp,v 1.1 2004-12-14 17:50:28 dockes Exp $ (C) 2004 J.F.Dockes";
+#endif
+
+#include <iostream>
+#include <string>
+#include <vector>
+
+using namespace std;
+
+#include "rcldb.h"
+
+#include "xapian.h"
+
+// Data for a xapian database
+class Native {
+ public:
+    bool isopen;
+    bool iswritable;
+    class Xapian::Database db;
+    class Xapian::WritableDatabase wdb;
+    vector<bool> updated;
+
+    Native() : isopen(false), iswritable(false) {}
+
+};
+
+Rcl::Db::Db() 
+{
+    pdata = new Native;
+}
+
+Rcl::Db::~Db()
+{
+    if (pdata == 0)
+	return;
+    Native *ndb = (Native *)pdata;
+    try {
+	// There is nothing to do for an ro db.
+	if (ndb->isopen == false || ndb->iswritable == false) {
+	    delete ndb;
+	    return;
+	}
+	ndb->wdb.flush();
+	delete ndb;
+    } catch (const Xapian::Error &e) {
+	cout << "Exception: " << e.get_msg() << endl;
+    } catch (const string &s) {
+	cout << "Exception: " << s << endl;
+    } catch (const char *s) {
+	cout << "Exception: " << s << endl;
+    } catch (...) {
+	cout << "Caught unknown exception" << endl;
+    }
+}
+
+bool Rcl::Db::open(const string& dir, OpenMode mode)
+{
+    if (pdata == 0)
+	return false;
+    Native *ndb = (Native *)pdata;
+    try {
+	switch (mode) {
+	case DbUpd:
+	    ndb->wdb = Xapian::Auto::open(dir, Xapian::DB_CREATE_OR_OPEN);
+	    ndb->updated.resize(ndb->wdb.get_lastdocid() + 1);
+	    ndb->iswritable = true;
+	    break;
+	case DbTrunc:
+	    ndb->wdb = Xapian::Auto::open(dir, Xapian::DB_CREATE_OR_OVERWRITE);
+	    ndb->iswritable = true;
+	    break;
+	case DbRO:
+	default:
+	    ndb->iswritable = false;
+	    cerr << "Not ready to open RO yet" << endl;
+	    exit(1);
+	}
+	ndb->isopen = true;
+	return true;
+    } catch (const Xapian::Error &e) {
+	cout << "Exception: " << e.get_msg() << endl;
+    } catch (const string &s) {
+	cout << "Exception: " << s << endl;
+    } catch (const char *s) {
+	cout << "Exception: " << s << endl;
+    } catch (...) {
+	cout << "Caught unknown exception" << endl;
+    }
+    return false;
+}
+bool Rcl::Db::close()
+{
+    if (pdata == 0)
+	return false;
+    Native *ndb = (Native *)pdata;
+    if (ndb->isopen == false)
+	return true;
+    try {
+	if (ndb->isopen == true && ndb->iswritable == true) {
+	    ndb->wdb.flush();
+	}
+	delete ndb;
+    } catch (const Xapian::Error &e) {
+	cout << "Exception: " << e.get_msg() << endl;
+	return false;
+    } catch (const string &s) {
+	cout << "Exception: " << s << endl;
+	return false;
+    } catch (const char *s) {
+	cout << "Exception: " << s << endl;
+	return false;
+    } catch (...) {
+	cout << "Caught unknown exception" << endl;
+	return false;
+    }
+    pdata = new Native;
+    if (pdata)
+	return true;
+    return false;
+}

src/rcldb/rcldb.h

@@ -0,0 +1,32 @@
+#ifndef _DB_H_INCLUDED_
+#define _DB_H_INCLUDED_
+/* @(#$Id: rcldb.h,v 1.1 2004-12-14 17:50:28 dockes Exp $  (C) 2004 J.F.Dockes */
+
+#include <string>
+
+namespace Rcl {
+
+/**
+ * Wrapper class for the native database.
+ */
+class Db {
+    void *pdata;
+ public:
+    Db();
+    ~Db();
+    enum OpenMode {DbRO, DbUpd, DbTrunc};
+    bool open(const std::string &dbdir, OpenMode mode);
+    bool close();
+};
+
+class Doc {
+ public:
+    string title;
+    string abstract;
+    string keywords;
+    string text;
+};
+
+}
+
+#endif /* _DB_H_INCLUDED_ */