public IEnumerable <Label> GetLabels(Topic topic, ImageLabel image)
{
#region validation
if (topic == null)
{
throw new ArgumentNullException(nameof(topic));
}
if (image == null)
{
throw new ArgumentNullException(nameof(image));
}
#endregion
IEnumerable <Label> labels = FileSession.Execute((fileName, filePath) =>
{
if (!FileContainer.ExistsFile(fileName, filePath))
{
return(new List <Label>());
}
using (Stream labelFileStream = FileContainer.GetFileStream(fileName, filePath))
{
return(LabelStoreUtil.GetLabelsFromStream(labelFileStream));
}
}, image.GetLabelFileName(), GetLabelsPath(topic));
image.SetLabels(labels);
return(labels);
}
public IEnumerable <Label> GetLabels(Topic topic, ImageLabel imageLabel)
{
#region validation
if (topic == null)
{
throw new ArgumentNullException(nameof(topic));
}
if (imageLabel == null)
{
throw new ArgumentNullException(nameof(imageLabel));
}
#endregion
IEnumerable <Label> labels = FileSession.Execute((fileName, filePath) =>
{
if (!FileContainer.ExistsFile(fileName, filePath))
{
return(new List <Label>());
}
using (StreamReader streamReader = EncodingUtil.GetStreamReader(FileContainer.GetFileStream(fileName, filePath), Encoding.UTF8))
{
string labelContentJson = streamReader.ReadToEnd();
return(JsonConvert.DeserializeObject <IEnumerable <Label> >(labelContentJson));
}
}, GetLabelFileName(imageLabel.Url), GetLabelsPath(topic));
imageLabel.SetLabels(labels);
return(labels);
}
/// <summary>
/// Save list of objectclasses in json-file.
/// </summary>
/// <param name="topic">Topic of objectclasses</param>
/// <param name="objectClasses">List of objectclasses to save</param>
private void SaveObjectClasses(Topic topic, IEnumerable <ObjectClass> objectClasses)
{
FileSession.Execute((fileName, filePath) =>
{
string objectclassesAsJson = JsonSerializer.Serialize(objectClasses);
byte[] newFileContent = EncodingUtil.GetBytes(objectclassesAsJson);
FileContainer.CreateFile(fileName, newFileContent, filePath);
return(true);
}, "objectclasses.json", GetTopicPath(topic));
}
public IEnumerable <Topic> GetTopics()
{
return(FileSession.Execute((fileName, filePath) =>
{
using (StreamReader streamReader = EncodingUtil.GetStreamReader(FileContainer.GetFileStream(fileName, filePath)))
{
string fileContent = streamReader.ReadToEnd();
return JsonConvert.DeserializeObject <IEnumerable <Topic> >(fileContent);
}
}, TOPICS_FILE_NAME));
}
/// <summary>
/// Loads objectclasses from objectclasses.json-file.
/// If file doesn't exsists, emtpy list will be returned.
/// </summary>
/// <param name="topic">Topic of objectclasses</param>
/// <returns>List of objectclasses</returns>
private IEnumerable <ObjectClass> LoadObjectClasses(Topic topic)
{
if (!FileContainer.ExistsFile("objectclasses.json", GetTopicPath(topic)))
{
return(new List <ObjectClass>());
}
return(FileSession.Execute((fileName, filePath) =>
{
using (StreamReader streamReader = EncodingUtil.GetStreamReader(FileContainer.GetFileStream(fileName, filePath)))
{
string objectclassesContent = streamReader.ReadToEnd();
return JsonConvert.DeserializeObject <IEnumerable <ObjectClass> >(objectclassesContent);
}
}, "objectclasses.json", GetTopicPath(topic)));
}
public IEnumerable <Label> AddLabels(Topic topic, ImageLabel image, IEnumerable <Label> labels)
{
#region validation
if (topic == null)
{
throw new ArgumentNullException(nameof(topic));
}
if (image == null)
{
throw new ArgumentNullException(nameof(image));
}
if (labels == null)
{
throw new ArgumentNullException(nameof(labels));
}
#endregion
// set id for labels
foreach (Label label in labels)
{
label.Id = labels.GetNext(o => o.Id) + 1;
}
FileSession.Execute((fileName, filePath) =>
{
image.Labels = labels.ToList();
byte[] labelFileContent = image.GetLabelsAsByte();
FileContainer.CreateFile(fileName, labelFileContent, filePath);
return(true);
}, image.GetLabelFileName(), GetLabelsPath(topic));
return(labels);
}
public IEnumerable <Label> CreateLabels(Topic topic, ImageLabel imageLabel)
{
#region validation
if (topic == null)
{
throw new ArgumentNullException(nameof(topic));
}
if (imageLabel == null)
{
throw new ArgumentNullException(nameof(imageLabel));
}
#endregion
// set id for undefined label-ids
// undefined label id will be lower than 0
foreach (Label label in imageLabel.Labels)
{
if (label.Id < 0)
{
label.Id = imageLabel.Labels.GetNext(o => o.Id);
}
}
FileSession.Execute((fileName, filePath) =>
{
string labelssAsJson = JsonConvert.SerializeObject(imageLabel.Labels);
byte[] newFileContent = EncodingUtil.GetBytes(labelssAsJson, Encoding.UTF8);
FileContainer.CreateFile(fileName, newFileContent, filePath);
return(true);
}, GetLabelFileName(imageLabel.Url), GetLabelsPath(topic));
return(imageLabel.Labels);
}
/// <summary>
/// Loads objectclasses from objectclasses.json-file.
/// If file doesn't exsists, emtpy list will be returned.
/// </summary>
/// <param name="topic">Topic of objectclasses</param>
/// <returns>List of objectclasses</returns>
private IEnumerable <ObjectClass> LoadObjectClasses(Topic topic)
{
if (!FileContainer.ExistsFile("objectclasses.json", GetTopicPath(topic)))
{
return(new List <ObjectClass>());
}
var objectClasses = FileSession.Execute((fileName, filePath) =>
{
using (StreamReader streamReader = EncodingUtil.GetStreamReader(FileContainer.GetFileStream(fileName, filePath)))
{
string objectclassesContent = streamReader.ReadToEnd();
return(JsonSerializer.Deserialize <IEnumerable <ObjectClass> >(objectclassesContent));
}
}, "objectclasses.json", GetTopicPath(topic));
// set topic reference id
foreach (ObjectClass objectClass in objectClasses)
{
objectClass.TopicId = topic.Id;
}
return(objectClasses);
}
