/// <summary>
/// Create record in key value data store
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public void Create(string key, string value)
{
if (FileUtilities.IsFileSizeLessThanOneGB(FWConstant.DataStoreFile))
{
XMLUtilities <DataStore> xmlUtilities = new XMLUtilities <DataStore>();
var dataStore = xmlUtilities.DeSerialize(FWConstant.DataStoreFile);
if (DataStoreUtilities.IsValidKey(key))
{
if (!DataStoreUtilities.IsKeyExists(key, dataStore))
{
if (DataStoreUtilities.IsJson(value))
{
if (DataStoreUtilities.CheckSize(value))
{
if (dataStore.Records != null)
{
dataStore.Records.Add(new Record {
Key = key, Value = value
});
}
else
{
dataStore.Records = new List <Record> {
new Record {
Key = key, Value = value
}
}
};
xmlUtilities.Serialize(dataStore, FWConstant.DataStoreFile);
}
else
{
throw new Exception("Size of data exceeds the limit of data store");
}
}
else
{
throw new Exception("Invalid json content");
}
}
else
{
throw new Exception("Key already Exists");
}
}
else
{
throw new Exception("Key size should not exceed 32 characters");
}
}
else
{
throw new Exception("Datastore size exceeds 1 GB");
}
}
/// <summary>
/// Used to read the JSON data from datastore using key
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public string Read(string key)
{
XMLUtilities <DataStore> xmlUtilities = new XMLUtilities <DataStore>();
var dataStore = xmlUtilities.DeSerialize(FWConstant.DataStoreFile);
if (DataStoreUtilities.IsKeyExists(key, dataStore))
{
return(dataStore.Records.FirstOrDefault(item => item.Key == key).Value);
}
else
{
throw new Exception("Invalid key");
}
}
/// <summary>
/// Delete the record from data store using key
/// </summary>
/// <param name="key"></param>
public void Delete(string key)
{
XMLUtilities <DataStore> xmlUtilities = new XMLUtilities <DataStore>();
var dataStore = xmlUtilities.DeSerialize(FWConstant.DataStoreFile);
if (DataStoreUtilities.IsKeyExists(key, dataStore))
{
dataStore.Records.Remove(dataStore.Records.FirstOrDefault(item => item.Key == key));
xmlUtilities.Serialize(dataStore, FWConstant.DataStoreFile);
}
else
{
throw new Exception("Invalid key");
}
}