private void loadProviders(String providersString) {
String[] providerArray = providersString.split(",");
for (String p : providerArray) {
try {
log.info(String.format("Loading Configuration Provider :: %s", p));
ConfigurationProvider cp = (ConfigurationProvider) Class.forName(p).newInstance();
cp.init();
providers.add(cp);
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException e) {
log.warn("Could not load provider class", e);
} catch (IOException e) {
log.warn("Could not initialize provider");
}
}
}
private String lookupKey(String key) {
for (ConfigurationProvider cp : providers) {
String value = null;
try {
value = cp.getValue(key);
} catch (IOException e) {
log.warn(
String.format(
"Error retrieving value for \"%s\" from provider (%s)", key, cp.getName()),
e);
}
if (value != null) {
return value;
}
}
return null;
}