[gnome-calculator/wip/currency-conversion-plugins] Refactor currency management into currency providers (refs #190)
- From: Robert Roth <robertroth src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-calculator/wip/currency-conversion-plugins] Refactor currency management into currency providers (refs #190)
- Date: Mon, 2 Nov 2020 23:53:45 +0000 (UTC)
commit 673b67e8e33a1ae09576e105a67d279ddee8dc52
Author: Robert Roth <robert roth off gmail com>
Date: Tue Nov 3 01:53:23 2020 +0200
Refactor currency management into currency providers (refs #190)
lib/currency-provider.vala | 337 +++++++++++++++++++++++++++++++++++++++++
lib/currency.vala | 368 ++++-----------------------------------------
lib/meson.build | 1 +
3 files changed, 364 insertions(+), 342 deletions(-)
---
diff --git a/lib/currency-provider.vala b/lib/currency-provider.vala
new file mode 100644
index 00000000..1136867a
--- /dev/null
+++ b/lib/currency-provider.vala
@@ -0,0 +1,337 @@
+public interface CurrencyProvider : Object {
+
+ public signal void updated ();
+
+ public abstract void update_rates ();
+
+ public abstract void set_refresh_interval (int interval);
+}
+
+abstract class AbstractCurrencyProvider : Object, CurrencyProvider {
+
+ public abstract string rate_filepath {owned get ;}
+
+ public abstract string rate_source_url {get;}
+
+ public abstract string source_name {get;}
+
+ public int refresh_interval { get; set; }
+
+ public override void set_refresh_interval (int interval) {
+ this.refresh_interval = interval;
+ }
+
+ private bool loading;
+ private bool loaded;
+ private List<Currency> currencies;
+
+ public void update_rates () {
+ if (loading || loaded) return;
+
+ if (!file_needs_update (rate_filepath, refresh_interval )) return;
+
+ loading = true;
+
+ download_file.begin (rate_source_url, rate_filepath, source_name);
+ }
+
+ protected Currency? get_currency (string name)
+ {
+ return CurrencyManager.get_default ().get_currency (name);
+ }
+
+ protected virtual void do_load_rates () {
+ loaded = true;
+ updated ();
+ }
+
+ /* A file needs to be redownloaded if it doesn't exist, or is too old.
+ * When an error occur, it probably won't hurt to try to download again.
+ */
+ private bool file_needs_update (string filename, double max_age)
+ {
+ if (max_age == 0)
+ return false;
+
+ if (!FileUtils.test (filename, FileTest.IS_REGULAR))
+ return true;
+
+ var buf = Posix.Stat ();
+ if (Posix.stat (filename, out buf) == -1)
+ return true;
+
+ var modify_time = buf.st_mtime;
+ var now = time_t ();
+ if (now - modify_time > max_age)
+ return true;
+
+ return false;
+ }
+
+ private async void download_file (string uri, string filename, string source)
+ {
+
+ var directory = Path.get_dirname (filename);
+ DirUtils.create_with_parents (directory, 0755);
+
+ var dest = File.new_for_path (filename);
+ var session = new Soup.Session ();
+ var message = new Soup.Message ("GET", uri);
+ try
+ {
+ var bodyinput = yield session.send_async (message);
+ var output = yield dest.replace_async (null, false, FileCreateFlags.REPLACE_DESTINATION,
Priority.DEFAULT);
+ yield output.splice_async (bodyinput,
+ OutputStreamSpliceFlags.CLOSE_SOURCE |
OutputStreamSpliceFlags.CLOSE_TARGET,
+ Priority.DEFAULT);
+ loading = false;
+ do_load_rates ();
+ debug ("%s rates updated", source);
+ }
+ catch (Error e)
+ {
+ warning ("Couldn't download %s currency rate file: %s", source, e.message);
+ }
+ }
+
+}
+
+class ImfCurrencyProvider : AbstractCurrencyProvider {
+ public override string rate_filepath { owned get {
+ return Path.build_filename (Environment.get_user_cache_dir (), "gnome-calculator", "rms_five.xls");
} }
+
+ public override string rate_source_url { get {
+ return "https://www.imf.org/external/np/fin/data/rms_five.aspx?tsvflag=Y";; } }
+
+ public override string source_name { get { return "IMF";} }
+
+ private HashTable <string, string> get_name_map () {
+ HashTable <string, string> name_map = new HashTable <string, string> (str_hash, str_equal);
+ name_map.insert ("Euro", "EUR");
+ name_map.insert ("Japanese yen", "JPY");
+ name_map.insert ("U.K. pound", "GBP");
+ name_map.insert ("U.S. dollar", "USD");
+ name_map.insert ("Algerian dinar", "DZD");
+ name_map.insert ("Australian dollar", "AUD");
+ name_map.insert ("Bahrain dinar", "BHD");
+ name_map.insert ("Bangladeshi taka", "BDT");
+ name_map.insert ("Botswana pula", "BWP");
+ name_map.insert ("Brazilian real", "BRL");
+ name_map.insert ("Brunei dollar", "BND");
+ name_map.insert ("Canadian dollar", "CAD");
+ name_map.insert ("Chilean peso", "CLP");
+ name_map.insert ("Chinese yuan", "CNY");
+ name_map.insert ("Colombian peso", "COP");
+ name_map.insert ("Czech koruna", "CZK");
+ name_map.insert ("Danish krone", "DKK");
+ name_map.insert ("Hungarian forint", "HUF");
+ name_map.insert ("Icelandic krona", "ISK");
+ name_map.insert ("Indian rupee", "INR");
+ name_map.insert ("Indonesian rupiah", "IDR");
+ name_map.insert ("Iranian rial", "IRR");
+ name_map.insert ("Israeli New Shekel", "ILS");
+ name_map.insert ("Kazakhstani tenge", "KZT");
+ name_map.insert ("Korean won", "KRW");
+ name_map.insert ("Kuwaiti dinar", "KWD");
+ name_map.insert ("Libyan dinar", "LYD");
+ name_map.insert ("Malaysian ringgit", "MYR");
+ name_map.insert ("Mauritian rupee", "MUR");
+ name_map.insert ("Mexican peso", "MXN");
+ name_map.insert ("Nepalese rupee", "NPR");
+ name_map.insert ("New Zealand dollar", "NZD");
+ name_map.insert ("Norwegian krone", "NOK");
+ name_map.insert ("Omani rial", "OMR");
+ name_map.insert ("Pakistani rupee", "PKR");
+ name_map.insert ("Peruvian sol", "PEN");
+ name_map.insert ("Philippine peso", "PHP");
+ name_map.insert ("Polish zloty", "PLN");
+ name_map.insert ("Qatari riyal", "QAR");
+ name_map.insert ("Russian ruble", "RUB");
+ name_map.insert ("Saudi Arabian riyal", "SAR");
+ name_map.insert ("Singapore dollar", "SGD");
+ name_map.insert ("South African rand", "ZAR");
+ name_map.insert ("Sri Lankan rupee", "LKR");
+ name_map.insert ("Swedish krona", "SEK");
+ name_map.insert ("Swiss franc", "CHF");
+ name_map.insert ("Thai baht", "THB");
+ name_map.insert ("Trinidadian dollar", "TTD");
+ name_map.insert ("Tunisian dinar", "TND");
+ name_map.insert ("U.A.E. dirham", "AED");
+ name_map.insert ("Uruguayan peso", "UYU");
+ name_map.insert ("Bolivar Fuerte", "VEF");
+ return name_map;
+ }
+
+ protected override void do_load_rates ()
+ {
+ var name_map = get_name_map ();
+
+ string data;
+ try
+ {
+ FileUtils.get_contents (rate_filepath, out data);
+ }
+ catch (Error e)
+ {
+ warning ("Failed to read exchange rates: %s", e.message);
+ return;
+ }
+
+ var lines = data.split ("\n", 0);
+
+ var in_data = false;
+ foreach (var line in lines)
+ {
+ line = line.chug ();
+
+ /* Start after first blank line, stop on next */
+ if (line == "")
+ {
+ if (!in_data)
+ {
+ in_data = true;
+ continue;
+ }
+ else
+ break;
+ }
+ if (!in_data)
+ continue;
+
+ var tokens = line.split ("\t", 0);
+ if (tokens[0] != "Currency")
+ {
+ int value_index;
+ for (value_index = 1; value_index < tokens.length; value_index++)
+ {
+ var value = tokens[value_index].chug ();
+ if (value != "")
+ break;
+ }
+
+ if (value_index < tokens.length)
+ {
+ var symbol = name_map.lookup (tokens[0]);
+ if (symbol != null)
+ {
+ var c = get_currency (symbol);
+ var value = mp_set_from_string (tokens[value_index]);
+ /* Use data if we have a valid value */
+ if (c == null && value != null)
+ {
+ debug ("Using IMF rate of %s for %s", tokens[value_index], symbol);
+ c = CurrencyManager.get_default ().add_currency (symbol, source_name);
+ value = value.reciprocal ();
+ if (c != null)
+ c.set_value (value);
+ }
+ }
+ else
+ warning ("Unknown currency '%s'", tokens[0]);
+ }
+ }
+ }
+ base.do_load_rates ();
+ }
+}
+
+
+class EcbCurrencyProvider : AbstractCurrencyProvider {
+ public override string rate_filepath { owned get {
+ return Path.build_filename (Environment.get_user_cache_dir (), "gnome-calculator",
"eurofxref-daily.xml"); } }
+
+ public override string rate_source_url { get {
+ return "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml";; } }
+
+ public override string source_name { get { return "ECB";} }
+
+ protected override void do_load_rates ()
+ {
+ /* Scale rates to the EUR value */
+ var eur_rate = get_currency ("EUR");
+ if (eur_rate == null)
+ {
+ warning ("Cannot use ECB rates as don't have EUR rate");
+ return;
+ }
+
+ /* Set some fixed rates */
+ set_ecb_fixed_rate ("BDT", "0.0099", eur_rate);
+ set_ecb_fixed_rate ("RSD", "0.0085", eur_rate);
+ set_ecb_fixed_rate ("EEK", "0.06391", eur_rate);
+ set_ecb_fixed_rate ("CFA", "0.00152449", eur_rate);
+
+ Xml.Parser.init ();
+ var document = Xml.Parser.read_file (rate_filepath);
+ if (document == null)
+ {
+ warning ("Couldn't parse ECB rate file %s", rate_filepath);
+ return;
+ }
+
+ var xpath_ctx = new Xml.XPath.Context (document);
+ if (xpath_ctx == null)
+ {
+ warning ("Couldn't create XPath context");
+ return;
+ }
+
+ xpath_ctx.register_ns ("xref", "http://www.ecb.int/vocabulary/2002-08-01/eurofxref";);
+ var xpath_obj = xpath_ctx.eval_expression ("//xref:Cube[@currency][@rate]");
+ if (xpath_obj == null)
+ {
+ warning ("Couldn't create XPath object");
+ return;
+ }
+ var len = (xpath_obj->nodesetval != null) ? xpath_obj->nodesetval->length () : 0;
+ for (var i = 0; i < len; i++)
+ {
+ var node = xpath_obj->nodesetval->item (i);
+
+ if (node->type == Xml.ElementType.ELEMENT_NODE)
+ set_ecb_rate (node, eur_rate);
+
+ /* Avoid accessing removed elements */
+ if (node->type != Xml.ElementType.NAMESPACE_DECL)
+ node = null;
+ }
+
+ Xml.Parser.cleanup ();
+ base.do_load_rates ();
+ }
+
+ private void set_ecb_rate (Xml.Node node, Currency eur_rate)
+ {
+ string? name = null, value = null;
+
+ for (var attribute = node.properties; attribute != null; attribute = attribute->next)
+ {
+ var n = (Xml.Node*) attribute;
+ if (attribute->name == "currency")
+ name = n->get_content ();
+ else if (attribute->name == "rate")
+ value = n->get_content ();
+ }
+
+ /* Use data if value and no rate currently defined */
+ if (name != null && value != null && get_currency (name) == null)
+ {
+ debug ("Using ECB rate of %s for %s", value, name);
+ var c = CurrencyManager.get_default ().add_currency (name, source_name);
+ var r = mp_set_from_string (value);
+ var v = eur_rate.get_value ();
+ v = v.multiply (r);
+ c.set_value (v);
+ }
+ }
+
+ private void set_ecb_fixed_rate (string name, string value, Currency eur_rate)
+ {
+ debug ("Using ECB fixed rate of %s for %s", value, name);
+ var c = CurrencyManager.get_default ().add_currency (name, source_name + "#fixed");
+ var r = mp_set_from_string (value);
+ var v = eur_rate.get_value ();
+ v = v.divide (r);
+ c.set_value (v);
+ }
+}
diff --git a/lib/currency.vala b/lib/currency.vala
index e366522c..44581c7a 100644
--- a/lib/currency.vala
+++ b/lib/currency.vala
@@ -8,16 +8,24 @@
* license.
*/
-static bool downloading_imf_rates = false;
-static bool downloading_ecb_rates = false;
-static bool loaded_rates = false;
private static CurrencyManager? default_currency_manager = null;
public class CurrencyManager : Object
{
private List<Currency> currencies;
- public int refresh_interval { get; set; }
+ private List<CurrencyProvider> providers;
+
+ private int _refresh_interval;
+ public int refresh_interval { get { return _refresh_interval;}
+ set
+ {
+ _refresh_interval = value;
+ foreach (var p in default_currency_manager.providers) {
+ p.set_refresh_interval(_refresh_interval);
+ }
+ }
+ }
public signal void updated ();
@@ -89,8 +97,13 @@ public class CurrencyManager : Object
default_currency_manager.currencies.append (new Currency ("VEF", _("Venezuelan Bolívar"), "Bs F"));
default_currency_manager.currencies.append (new Currency ("ZAR", _("South African Rand"), "R"));
+ default_currency_manager.providers.append (new ImfCurrencyProvider ());
+ default_currency_manager.providers.append (new EcbCurrencyProvider ());
/* Start downloading the rates if they are outdated. */
- default_currency_manager.download_rates ();
+ foreach (var p in default_currency_manager.providers) {
+ p.updated.connect ( () => { default_currency_manager.updated (); });
+ p.update_rates ();
+ }
return default_currency_manager;
}
@@ -120,17 +133,16 @@ public class CurrencyManager : Object
return null;
}
- private string get_imf_rate_filepath ()
- {
- return Path.build_filename (Environment.get_user_cache_dir (), "gnome-calculator", "rms_five.xls");
- }
-
- private string get_ecb_rate_filepath ()
+ public Number? get_value (string currency)
{
- return Path.build_filename (Environment.get_user_cache_dir (), "gnome-calculator",
"eurofxref-daily.xml");
+ var c = get_currency (currency);
+ if (c != null)
+ return c.get_value ();
+ else
+ return null;
}
- private Currency add_currency (string short_name, string source)
+ public Currency add_currency (string short_name, string source)
{
foreach (var c in currencies)
if (c.name == short_name)
@@ -143,337 +155,8 @@ public class CurrencyManager : Object
var c = new Currency (short_name, short_name, short_name);
c.source = source;
currencies.append (c);
-
return c;
}
-
- /* A file needs to be redownloaded if it doesn't exist, or is too old.
- * When an error occur, it probably won't hurt to try to download again.
- */
- private bool file_needs_update (string filename, double max_age)
- {
- if (max_age == 0)
- return false;
-
- if (!FileUtils.test (filename, FileTest.IS_REGULAR))
- return true;
-
- var buf = Posix.Stat ();
- if (Posix.stat (filename, out buf) == -1)
- return true;
-
- var modify_time = buf.st_mtime;
- var now = time_t ();
- if (now - modify_time > max_age)
- return true;
-
- return false;
- }
-
- private void load_imf_rates ()
- {
- var name_map = new HashTable <string, string> (str_hash, str_equal);
- name_map.insert ("Euro", "EUR");
- name_map.insert ("Japanese yen", "JPY");
- name_map.insert ("U.K. pound", "GBP");
- name_map.insert ("U.S. dollar", "USD");
- name_map.insert ("Algerian dinar", "DZD");
- name_map.insert ("Australian dollar", "AUD");
- name_map.insert ("Bahrain dinar", "BHD");
- name_map.insert ("Bangladeshi taka", "BDT");
- name_map.insert ("Botswana pula", "BWP");
- name_map.insert ("Brazilian real", "BRL");
- name_map.insert ("Brunei dollar", "BND");
- name_map.insert ("Canadian dollar", "CAD");
- name_map.insert ("Chilean peso", "CLP");
- name_map.insert ("Chinese yuan", "CNY");
- name_map.insert ("Colombian peso", "COP");
- name_map.insert ("Czech koruna", "CZK");
- name_map.insert ("Danish krone", "DKK");
- name_map.insert ("Hungarian forint", "HUF");
- name_map.insert ("Icelandic krona", "ISK");
- name_map.insert ("Indian rupee", "INR");
- name_map.insert ("Indonesian rupiah", "IDR");
- name_map.insert ("Iranian rial", "IRR");
- name_map.insert ("Israeli New Shekel", "ILS");
- name_map.insert ("Kazakhstani tenge", "KZT");
- name_map.insert ("Korean won", "KRW");
- name_map.insert ("Kuwaiti dinar", "KWD");
- name_map.insert ("Libyan dinar", "LYD");
- name_map.insert ("Malaysian ringgit", "MYR");
- name_map.insert ("Mauritian rupee", "MUR");
- name_map.insert ("Mexican peso", "MXN");
- name_map.insert ("Nepalese rupee", "NPR");
- name_map.insert ("New Zealand dollar", "NZD");
- name_map.insert ("Norwegian krone", "NOK");
- name_map.insert ("Omani rial", "OMR");
- name_map.insert ("Pakistani rupee", "PKR");
- name_map.insert ("Peruvian sol", "PEN");
- name_map.insert ("Philippine peso", "PHP");
- name_map.insert ("Polish zloty", "PLN");
- name_map.insert ("Qatari riyal", "QAR");
- name_map.insert ("Russian ruble", "RUB");
- name_map.insert ("Saudi Arabian riyal", "SAR");
- name_map.insert ("Singapore dollar", "SGD");
- name_map.insert ("South African rand", "ZAR");
- name_map.insert ("Sri Lankan rupee", "LKR");
- name_map.insert ("Swedish krona", "SEK");
- name_map.insert ("Swiss franc", "CHF");
- name_map.insert ("Thai baht", "THB");
- name_map.insert ("Trinidadian dollar", "TTD");
- name_map.insert ("Tunisian dinar", "TND");
- name_map.insert ("U.A.E. dirham", "AED");
- name_map.insert ("Uruguayan peso", "UYU");
- name_map.insert ("Bolivar Fuerte", "VEF");
-
- var filename = get_imf_rate_filepath ();
- string data;
- try
- {
- FileUtils.get_contents (filename, out data);
- }
- catch (Error e)
- {
- warning ("Failed to read exchange rates: %s", e.message);
- return;
- }
-
- var lines = data.split ("\n", 0);
-
- var in_data = false;
- foreach (var line in lines)
- {
- line = line.chug ();
-
- /* Start after first blank line, stop on next */
- if (line == "")
- {
- if (!in_data)
- {
- in_data = true;
- continue;
- }
- else
- break;
- }
- if (!in_data)
- continue;
-
- var tokens = line.split ("\t", 0);
- if (tokens[0] != "Currency")
- {
- int value_index;
- for (value_index = 1; value_index < tokens.length; value_index++)
- {
- var value = tokens[value_index].chug ();
- if (value != "")
- break;
- }
-
- if (value_index < tokens.length)
- {
- var symbol = name_map.lookup (tokens[0]);
- if (symbol != null)
- {
- var c = get_currency (symbol);
- var value = mp_set_from_string (tokens[value_index]);
- /* Use data if we have a valid value */
- if (c == null && value != null)
- {
- debug ("Using IMF rate of %s for %s", tokens[value_index], symbol);
- c = add_currency (symbol, "imf");
- value = value.reciprocal ();
- if (c != null)
- c.set_value (value);
- }
- }
- else
- warning ("Unknown currency '%s'", tokens[0]);
- }
- }
- }
- }
-
- private void set_ecb_rate (Xml.Node node, Currency eur_rate)
- {
- string? name = null, value = null;
-
- for (var attribute = node.properties; attribute != null; attribute = attribute->next)
- {
- var n = (Xml.Node*) attribute;
- if (attribute->name == "currency")
- name = n->get_content ();
- else if (attribute->name == "rate")
- value = n->get_content ();
- }
-
- /* Use data if value and no rate currently defined */
- if (name != null && value != null && get_currency (name) == null)
- {
- debug ("Using ECB rate of %s for %s", value, name);
- var c = add_currency (name, "ecb");
- var r = mp_set_from_string (value);
- var v = eur_rate.get_value ();
- v = v.multiply (r);
- c.set_value (v);
- }
- }
-
- private void set_ecb_fixed_rate (string name, string value, Currency eur_rate)
- {
- debug ("Using ECB fixed rate of %s for %s", value, name);
- var c = add_currency (name, "ecb#fixed");
- var r = mp_set_from_string (value);
- var v = eur_rate.get_value ();
- v = v.divide (r);
- c.set_value (v);
- }
-
- private void load_ecb_rates ()
- {
- /* Scale rates to the EUR value */
- var eur_rate = get_currency ("EUR");
- if (eur_rate == null)
- {
- warning ("Cannot use ECB rates as don't have EUR rate");
- return;
- }
-
- /* Set some fixed rates */
- set_ecb_fixed_rate ("BDT", "0.0099", eur_rate);
- set_ecb_fixed_rate ("RSD", "0.0085", eur_rate);
- set_ecb_fixed_rate ("EEK", "0.06391", eur_rate);
- set_ecb_fixed_rate ("CFA", "0.00152449", eur_rate);
-
- Xml.Parser.init ();
- var filename = get_ecb_rate_filepath ();
- var document = Xml.Parser.read_file (filename);
- if (document == null)
- {
- warning ("Couldn't parse ECB rate file %s", filename);
- return;
- }
-
- var xpath_ctx = new Xml.XPath.Context (document);
- if (xpath_ctx == null)
- {
- warning ("Couldn't create XPath context");
- return;
- }
-
- xpath_ctx.register_ns ("xref", "http://www.ecb.int/vocabulary/2002-08-01/eurofxref";);
- var xpath_obj = xpath_ctx.eval_expression ("//xref:Cube[@currency][@rate]");
- if (xpath_obj == null)
- {
- warning ("Couldn't create XPath object");
- return;
- }
- var len = (xpath_obj->nodesetval != null) ? xpath_obj->nodesetval->length () : 0;
- for (var i = 0; i < len; i++)
- {
- var node = xpath_obj->nodesetval->item (i);
-
- if (node->type == Xml.ElementType.ELEMENT_NODE)
- set_ecb_rate (node, eur_rate);
-
- /* Avoid accessing removed elements */
- if (node->type != Xml.ElementType.NAMESPACE_DECL)
- node = null;
- }
-
- Xml.Parser.cleanup ();
- }
-
- private void download_rates ()
- {
- /* Update rates if necessary */
- var path = get_imf_rate_filepath ();
- if (!downloading_imf_rates && file_needs_update (path, refresh_interval))
- {
- downloading_imf_rates = true;
- debug ("Downloading rates from the IMF...");
- download_file.begin ("https://www.imf.org/external/np/fin/data/rms_five.aspx?tsvflag=Y";, path,
"IMF");
- }
- path = get_ecb_rate_filepath ();
- if (!downloading_ecb_rates && file_needs_update (path, refresh_interval))
- {
- downloading_ecb_rates = true;
- debug ("Downloading rates from the ECB...");
- download_file.begin ("https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml";, path,
"ECB");
- }
- }
-
- private bool load_rates ()
- {
- /* Already loaded */
- if (loaded_rates)
- return true;
-
- /* In process */
- if (downloading_imf_rates || downloading_ecb_rates)
- return false;
-
- /* Use the IMF provided values and top up with currencies tracked by the ECB and not the IMF */
- load_imf_rates ();
- load_ecb_rates ();
-
- /* Check if we couldn't find out a currency */
- foreach (var c in currencies)
- if (c.get_value () == null || c.get_value ().is_zero ())
- warning ("Currency %s is not provided by IMF or ECB", c.name);
-
- debug ("Rates loaded");
- loaded_rates = true;
-
- updated ();
-
- return true;
- }
-
- public Number? get_value (string currency)
- {
- /* Make sure that the rates we're returning are up to date. (Just in case the application is running
from a long long time) */
- download_rates ();
-
- if (!load_rates ())
- return null;
-
- var c = get_currency (currency);
- if (c != null)
- return c.get_value ();
- else
- return null;
- }
-
- private async void download_file (string uri, string filename, string source)
- {
-
- var directory = Path.get_dirname (filename);
- DirUtils.create_with_parents (directory, 0755);
-
- var dest = File.new_for_path (filename);
- var session = new Soup.Session ();
- var message = new Soup.Message ("GET", uri);
- try
- {
- var bodyinput = yield session.send_async (message);
- var output = yield dest.replace_async (null, false, FileCreateFlags.REPLACE_DESTINATION,
Priority.DEFAULT);
- yield output.splice_async (bodyinput,
- OutputStreamSpliceFlags.CLOSE_SOURCE |
OutputStreamSpliceFlags.CLOSE_TARGET,
- Priority.DEFAULT);
- if (source == "IMF")
- downloading_imf_rates = false;
- else
- downloading_ecb_rates = false;
-
- load_rates ();
- debug ("%s rates updated", source);
- }
- catch (Error e)
- {
- warning ("Couldn't download %s currency rate file: %s", source, e.message);
- }
- }
}
public class Currency : Object
@@ -508,4 +191,5 @@ public class Currency : Object
{
return value;
}
+
}
diff --git a/lib/meson.build b/lib/meson.build
index bc4239bd..8f9e05d4 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -1,5 +1,6 @@
libcalculator_sources = [
'currency.vala',
+ 'currency-provider.vala',
'equation.vala',
'equation-lexer.vala',
'equation-parser.vala',
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