platform/lib/angel_configuration.dart
thosakwe c8eac16ffc +8
2016-11-27 21:03:05 -05:00

65 lines
No EOL
1.9 KiB
Dart

library angel_configuration;
import 'dart:io';
import 'package:angel_framework/angel_framework.dart';
import 'package:angel_route/src/extensible.dart';
import 'package:yaml/yaml.dart';
final RegExp _equ = new RegExp(r'=$');
final RegExp _sym = new RegExp(r'Symbol\("([^"]+)"\)');
@proxy
class Configuration {
final Angel app;
Configuration(this.app);
operator [](key) => app.properties[key];
operator []=(key, value) => app.properties[key] = value;
noSuchMethod(Invocation invocation) {
if (invocation.memberName != null) {
String name = _sym.firstMatch(invocation.memberName.toString()).group(1);
if (invocation.isMethod) {
return Function.apply(app.properties[name], invocation.positionalArguments,
invocation.namedArguments);
} else if (invocation.isGetter) {
return app.properties[name];
}
}
super.noSuchMethod(invocation);
}
}
_loadYamlFile(Angel app, File yamlFile) async {
if (await yamlFile.exists()) {
Map config = loadYaml(await yamlFile.readAsString());
for (String key in config.keys) {
app.properties[key] = config[key];
}
}
}
loadConfigurationFile(
{String directoryPath: "./config", String overrideEnvironmentName}) {
return (Angel app) async {
Directory sourceDirectory = new Directory(directoryPath);
String environmentName = Platform.environment['ANGEL_ENV'] ?? 'development';
if (overrideEnvironmentName != null) {
environmentName = overrideEnvironmentName;
}
File defaultYaml = new File.fromUri(
sourceDirectory.absolute.uri.resolve("default.yaml"));
await _loadYamlFile(app, defaultYaml);
String configFilePath = "$environmentName.yaml";
File configFile = new File.fromUri(
sourceDirectory.absolute.uri.resolve(configFilePath));
await _loadYamlFile(app, configFile);
app.container.singleton(new Configuration(app));
};
}