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/* reporting.vala
*
* Copyright (C) 2012-2014 Matthias Klumpp <matthias@tenstral.net>
*
* Licensed under the GNU Lesser General Public License Version 3
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
using GLib;
namespace Listaller {
/**
* Type of a message written to a Listaller Report
*/
public enum ReportMessageType {
INFO,
SUGGESTION,
WARNING,
CRITICAL,
ERROR;
internal string to_string() {
switch (this) {
case INFO:
return ("I");
case SUGGESTION:
return ("S");
case WARNING:
return ("W");
case CRITICAL:
return ("C");
case ERROR:
return ("E");
default:
return ("X");
}
}
}
/**
* Report generator
*/
public class Report : Object {
private static Report instance;
private Array<string> lines; // probably use a HashSet later...
private bool error_received;
private bool print_fatal;
public Report () {
lines = new Array<string> ();
error_received = false;
print_fatal = false; // NOTE: Changed to FALSE by default now
debug ("New Listaller Report handler created.");
}
public bool contains_error () {
return error_received;
}
public bool is_empty () {
return lines.length == 0;
}
public void add_message (ReportMessageType mtype, string message) {
lock (lines) {
string prefix = " %s: ".printf (mtype.to_string ());
lines.append_val ("%s%s".printf (prefix, message));
}
// Because errors and warnings might be very important, we also show a message directly
if (mtype == ReportMessageType.ERROR) {
lock (error_received)
error_received = true;
// LEVEL_ERROR would abort the program, usually. Because errors which were
// written to the report aren't that crtical for program execution, we
// just use the CRITICAL level here
if (print_fatal)
log ("Report", LogLevelFlags.LEVEL_CRITICAL, message);
}
if (!print_fatal)
return;
if (mtype == ReportMessageType.CRITICAL)
log ("Report", LogLevelFlags.LEVEL_CRITICAL, message);
if (mtype == ReportMessageType.WARNING)
log ("Report", LogLevelFlags.LEVEL_WARNING, message);
}
public void add_info (string message) {
add_message (ReportMessageType.INFO, message);
}
public void add_warning (string message) {
add_message (ReportMessageType.WARNING, message);
}
public void add_error (string message) {
add_message (ReportMessageType.ERROR, message);
}
public string to_string () {
string str = "";
lock (lines) {
for (uint i=0; i < lines.length; i++) {
str += "%s\n".printf (lines.index (i));
}
}
return str;
}
public void clear () {
lines.set_size (0);
}
public void set_print_fatal (bool print_fatal_msg) {
print_fatal = print_fatal_msg;
debug ("Changed printing fatal report messages: %i", (int) print_fatal);
}
public static Report get_instance () {
if (Report.instance == null)
Report.instance = new Report ();
return Report.instance;
}
public static void delete () {
Report.instance = null;
}
public static void log_message (ReportMessageType mtype, string message) {
get_instance ().add_message (mtype, message);
}
public static void log_info (string message) {
get_instance ().add_info (message);
}
public static void log_warning (string message) {
get_instance ().add_warning (message);
}
public static void log_error (string message) {
get_instance ().add_error (message);
}
public static void clear_current () {
get_instance ().clear ();
}
public static void set_print_fatal_msg (bool print_fatal_msg) {
get_instance ().set_print_fatal (print_fatal_msg);
}
}
} // End of namespace: Listaller
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