/// <summary>
/// Constructs a new instance.
/// </summary>
/// <param name="context">Context for the writer.</param>
/// <param name="writer"><see cref="TextWriter"/> to receive the output.</param>
public FudgeJSONStreamWriter(FudgeContext context, TextWriter writer)
{
if (context == null)
throw new ArgumentNullException("context");
if (writer == null)
throw new ArgumentNullException("writer");
this.context = context;
this.writer = writer;
this.settings = (JSONSettings)context.GetProperty(JSONSettings.JSONSettingsProperty) ?? new JSONSettings();
}
/// <summary>
/// Constructs a new instance.
/// </summary>
/// <param name="context">Context for the writer.</param>
/// <param name="settings">Settings for the writer (rather than getting from the context).</param>
/// <param name="writer"><see cref="TextWriter"/> to receive the output.</param>
public FudgeJSONStreamWriter(FudgeContext context, JSONSettings settings, TextWriter writer)
{
if (context == null)
throw new ArgumentNullException("context");
if (writer == null)
throw new ArgumentNullException("writer");
if (settings == null)
throw new ArgumentNullException("settings");
this.context = context;
this.writer = writer;
this.settings = settings;
}
/// <summary>
/// Constructs a <see cref="FudgeJSONStreamReader"/> on a given <see cref="TextReader"/>.
/// </summary>
/// <param name="context">Context to control behaviours.</param>
/// <param name="settings">Settings to override any in the <see cref="FudgeContext"/>.</param>
/// <param name="reader"><see cref="TextReader"/> providing the data.</param>
public FudgeJSONStreamReader(FudgeContext context, JSONSettings settings, TextReader reader)
{
if (context == null)
throw new ArgumentNullException("context");
if (reader == null)
throw new ArgumentNullException("reader");
if (settings == null)
throw new ArgumentNullException("settings");
this.context = context;
this.reader = reader;
this.settings = settings;
}
/// <summary>
/// Clones an existing settings object.
/// </summary>
/// <param name="other">Object to clone</param>
public JSONSettings(JSONSettings other)
{
}
/// <summary>
/// Constructs a <see cref="FudgeJSONStreamReader"/> using a <c>string</c> for the underlying data.
/// </summary>
/// <param name="context">Context to control behaviours.</param>
/// <param name="settings">Settings to override any in the <see cref="FudgeContext"/>.</param>
/// <param name="text">Text containing JSON message.</param>
/// <example>This example shows a simple JSON string being converted into a <see cref="FudgeMsg"/> object:
/// <code>
/// string json = @"{""name"" : ""fred""}";
/// FudgeMsg msg = new FudgeJSONStreamReader(json).ReadToMsg();
/// </code>
/// </example>
public FudgeJSONStreamReader(FudgeContext context, JSONSettings settings, string text)
: this(context, settings, new StringReader(text))
{
}
public void FieldNamesAndOrdinalsLogic_FRN86()
{
var stringWriter = new StringWriter();
var writer = new FudgeJSONStreamWriter(context, stringWriter);
var msg = context.NewMessage(new Field(1, "ord"),
new Field("A", "name"),
new Field("B", 2, "name and ord"),
new Field(null, null, "empty"));
writer.WriteMsg(msg);
AssertEqualsNoWhiteSpace("{\"1\" : \"ord\", \"A\" : \"name\", \"B\" : \"name and ord\", \"\" : \"empty\"}", stringWriter.ToString());
// Now try it preferring ordinals to names
var stringWriter2 = new StringWriter();
var settings = new JSONSettings() { PreferFieldNames = false };
var writer2 = new FudgeJSONStreamWriter(context, settings, stringWriter2);
writer2.WriteMsg(msg);
AssertEqualsNoWhiteSpace("{\"1\" : \"ord\", \"A\" : \"name\", \"2\" : \"name and ord\", \"\" : \"empty\"}", stringWriter2.ToString());
}
