private void btnSubmit_Click(object sender, EventArgs e)
{
txtOutput.Text = string.Empty;
var result = validateWindow();
if (!string.IsNullOrEmpty(result))
MessageBox.Show(result, APPLICATION_TITLE, MessageBoxButtons.OK, MessageBoxIcon.Error);
try
{
JsonPathModel model = new JsonPathModel
{
SourceJson = string.Join(Environment.NewLine, txtJson.Lines),
Expressions = Array.ConvertAll(txtExpression.Text.Split(";".ToCharArray(), StringSplitOptions.RemoveEmptyEntries), (s) => new JsonPathExpression { Expression = s })
};
var expressions = _presenter.ParseExpression(model);
foreach (var expression in expressions)
{
if (!isFirstLine())
txtOutput.Text += Environment.NewLine + Environment.NewLine;
var nodes = expression.Nodes.Select(node => new {Path = node.Path,
Value = JsonConvert.Serialize(node.Value)});
txtOutput.Text += string.Format("Output of {0} is: \r\n {1}\r\n", expression.Expression,
string.Join(Environment.NewLine + Environment.NewLine, nodes));
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, APPLICATION_TITLE, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public IEnumerable<JsonPathExpression> ParseExpression(JsonPathModel model, ScriptEvaluatorFactory.ScriptEvaluatorTypes evaluatorType = ScriptEvaluatorFactory.ScriptEvaluatorTypes.Basic, IJsonPathValueSystem valueSystem = null)
{
IList<JsonPathExpression> result = new List<JsonPathExpression>(model.Expressions.Count());
var json = JsonConvert.DeserializeObject(model.SourceJson);
var context = new JsonPathContext
{
ScriptEvaluator = new JsonPathScriptEvaluator(ScriptEvaluatorFactory.Create(evaluatorType).EvaluateScript),
ValueSystem = valueSystem
};
foreach(JsonPathExpression expression in model.Expressions)
{
var nodes = context.SelectNodes(json, expression.Expression);
Array.Copy(nodes, expression.Nodes.ToArray(), nodes.Length);
result.Add(expression);
}
return result.AsEnumerable();
}
