/**
* Get the configurations from the configurations File as a {@link JsonElement}
*
* @return {@link JsonElement} The configuration tree contained inside the configuration File. If
* the File doesn't exist or an error occurred, the default configuration tree is returned
*/
private JsonElement getConfigurationTreeFromFile() {
if (mConfigurationFile.exists()) { // Check, if the configuration File exists on disk
JsonParser parser = new JsonParser();
try {
JsonElement result = parser.parse(new FileReader(mConfigurationFile));
if (result.isJsonObject()) { // Check if content is a valid JsonObject
return result;
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
return mDefaultConfigurations; // If the configurations File doesn't exist on disk, return the
// default configurations
}
/**
* Method to recursively convert a Json tree, consisting of {@link JsonElement}s, to a to a
* configuration tree, consisting of {@link ConfigurationElement}s
*
* @param parentConfiguration {@link ConfigurationElement} The parent configuration of the new
* configurations added in this method call
* @param parentJsonElement {@link JsonElement} The parent of the {@link JsonElement}s which will
* be converted to {@link ConfigurationElement}s
*/
private void recConvertJsonTreeToConfigurationTree(
ConfigurationElement parentConfiguration, JsonElement parentJsonElement) {
if (parentJsonElement.isJsonObject()) {
Set<Map.Entry<String, JsonElement>> childConfigurations =
((JsonObject) parentJsonElement).entrySet();
for (Map.Entry<String, JsonElement> childConfiguration : childConfigurations) {
if (childConfiguration.getValue().isJsonObject()) {
ConfigurationElement newConfigurationSection =
new ConfigurationElement(childConfiguration.getKey());
parentConfiguration.addChildConfiguration(newConfigurationSection);
recConvertJsonTreeToConfigurationTree(
newConfigurationSection, childConfiguration.getValue());
} else {
parentConfiguration.addChildConfiguration(
new ConfigurationElement(
childConfiguration.getKey(),
new JsonConfigurationValue(childConfiguration.getValue())));
}
}
}
}