public Reader(Stream input, IImmutableDictionary <string, IReadHandler> handlers, IDefaultReadHandler <object> defaultHandler)
{
this.initialized = false;
this.input = input;
this.handlers = handlers;
this.defaultHandler = defaultHandler;
this.cache = new ReadCache();
}
/// <summary>
/// Parses the specified cache.
/// </summary>
/// <param name="cache">The cache.</param>
/// <returns></returns>
public override object Parse(ReadCache cache)
{
if (jp.Read())
{
return ParseVal(false, cache);
}
else
{
return null;
}
}
/// <summary>
/// Parses the specified cache.
/// </summary>
/// <param name="cache">The cache.</param>
/// <returns></returns>
public override object Parse(ReadCache cache)
{
if (jp.Read())
{
return(ParseVal(false, cache));
}
else
{
return(null);
}
}
/// <summary>
/// Parses the dictionary.
/// </summary>
/// <param name="ignored">if set to <c>true</c> [ignored].</param>
/// <param name="cache">The cache.</param>
/// <param name="handler">The handler.</param>
/// <param name="endToken">The end token.</param>
/// <returns></returns>
public object ParseDictionary(bool ignored, ReadCache cache, IDictionaryReadHandler handler, JsonToken endToken)
{
IDictionaryReader dr = (handler != null) ? handler.DictionaryReader() : dictionaryBuilder;
object d = dr.Init();
while (jp.NextToken() != endToken)
{
object key = ParseVal(true, cache);
if (key is Tag)
{
object val;
jp.Read(); // advance to read value
string tag = ((Tag)key).GetValue();
IReadHandler val_handler;
if (TryGetHandler(tag, out val_handler))
{
if (this.jp.TokenType == JsonToken.StartObject && val_handler is IDictionaryReadHandler)
{
// use map reader to decode value
val = ParseDictionary(false, cache, (IDictionaryReadHandler)val_handler);
}
else if (this.jp.TokenType == JsonToken.StartArray && val_handler is IListReadHandler)
{
// use array reader to decode value
val = ParseList(false, cache, (IListReadHandler)val_handler);
}
else
{
// read value and decode normally
val = val_handler.FromRepresentation(ParseVal(false, cache));
}
}
else
{
// default decode
val = this.Decode(tag, ParseVal(false, cache));
}
jp.Read(); // advance to read end of object or array
return(val);
}
else
{
jp.Read(); // advance to read value
d = dr.Add(d, key, ParseVal(false, cache));
}
}
return(dr.Complete(d));
}
/// <summary>
/// Parses the value.
/// </summary>
/// <param name="asDictionaryKey">If set to <c>true</c> [as dictionary key].</param>
/// <param name="cache">The cache.</param>
/// <returns>
/// The parsed value.
/// </returns>
public override object ParseVal(bool asDictionaryKey, ReadCache cache)
{
switch (jp.TokenType)
{
case JsonToken.Integer:
return(ParseLong());
case JsonToken.StartArray:
return(ParseList(asDictionaryKey, cache, null));
case JsonToken.StartObject:
return(ParseDictionary(asDictionaryKey, cache, null));
case JsonToken.PropertyName:
case JsonToken.String:
return(cache.CacheRead((string)jp.Value, asDictionaryKey, this));
case JsonToken.Float:
case JsonToken.Boolean:
return(jp.Value);
case JsonToken.Null:
return(null);
case JsonToken.Bytes:
case JsonToken.Comment:
case JsonToken.Date:
case JsonToken.EndArray:
case JsonToken.EndConstructor:
case JsonToken.EndObject:
case JsonToken.None:
case JsonToken.Raw:
case JsonToken.StartConstructor:
case JsonToken.Undefined:
default:
return(null);
}
}
/// <summary> /// Parses the list. /// </summary> /// <param name="asDictionaryKey">If set to <c>true</c> [as dictionary key].</param> /// <param name="cache">The cache.</param> /// <param name="handler">The handler.</param> /// <returns> /// The parsed list. /// </returns> public abstract object ParseList(bool asDictionaryKey, ReadCache cache, IListReadHandler handler);
/// <summary> /// Parses the dictionary. /// </summary> /// <param name="asDictionaryKey">If set to <c>true</c> [as dictionary key].</param> /// <param name="cache">The cache.</param> /// <param name="handler">The handler.</param> /// <returns> /// The parced dictionary /// </returns> public abstract object ParseDictionary(bool asDictionaryKey, ReadCache cache, IDictionaryReadHandler handler);
/// <summary> /// Parses the list. /// </summary> /// <param name="asDictionaryKey">If set to <c>true</c> [as dictionary key].</param> /// <param name="cache">The cache.</param> /// <param name="handler">The handler.</param> /// <returns> /// The parsed list. /// </returns> public abstract object ParseList(bool asDictionaryKey, ReadCache cache, IListReadHandler handler);
/// <summary> /// Parses the dictionary. /// </summary> /// <param name="asDictionaryKey">If set to <c>true</c> [as dictionary key].</param> /// <param name="cache">The cache.</param> /// <param name="handler">The handler.</param> /// <returns> /// The parced dictionary /// </returns> public abstract object ParseDictionary(bool asDictionaryKey, ReadCache cache, IDictionaryReadHandler handler);
/// <summary> /// Parses the value. /// </summary> /// <param name="asDictionaryKey">If set to <c>true</c> [as dictionary key].</param> /// <param name="cache">The cache.</param> /// <returns> /// The parsed value. /// </returns> public abstract object ParseVal(bool asDictionaryKey, ReadCache cache);
/// <summary> /// Parses the specified cache. /// </summary> /// <param name="cache">The cache.</param> /// <returns></returns> public abstract object Parse(ReadCache cache);
public void TestReadCache()
{
ReadCache rc = new ReadCache();
Assert.AreEqual("~:foo", rc.CacheRead("~:foo", false));
Assert.AreEqual("~:foo", rc.CacheRead("^" + (char)WriteCache.BaseCharIdx, false));
Assert.AreEqual("~$bar", rc.CacheRead("~$bar", false));
Assert.AreEqual("~$bar", rc.CacheRead("^" + (char)(WriteCache.BaseCharIdx + 1), false));
Assert.AreEqual("~#baz", rc.CacheRead("~#baz", false));
Assert.AreEqual("~#baz", rc.CacheRead("^" + (char)(WriteCache.BaseCharIdx + 2), false));
Assert.AreEqual("foobar", rc.CacheRead("foobar", false));
Assert.AreEqual("foobar", rc.CacheRead("foobar", false));
Assert.AreEqual("foobar", rc.CacheRead("foobar", true));
Assert.AreEqual("foobar", rc.CacheRead("^" + (char)(WriteCache.BaseCharIdx + 3), true));
Assert.AreEqual("abc", rc.CacheRead("abc", false));
Assert.AreEqual("abc", rc.CacheRead("abc", false));
Assert.AreEqual("abc", rc.CacheRead("abc", true));
Assert.AreEqual("abc", rc.CacheRead("abc", true));
}
/// <summary>
/// Parses the value.
/// </summary>
/// <param name="asDictionaryKey">If set to <c>true</c> [as dictionary key].</param>
/// <param name="cache">The cache.</param>
/// <returns>
/// The parsed value.
/// </returns>
public override object ParseVal(bool asDictionaryKey, ReadCache cache)
{
switch (jp.TokenType)
{
case JsonToken.Integer:
return ParseLong();
case JsonToken.StartArray:
return ParseList(asDictionaryKey, cache, null);
case JsonToken.StartObject:
return ParseDictionary(asDictionaryKey, cache, null);
case JsonToken.PropertyName:
case JsonToken.String:
return cache.CacheRead((string)jp.Value, asDictionaryKey, this);
case JsonToken.Float:
case JsonToken.Boolean:
return jp.Value;
case JsonToken.Null:
return null;
case JsonToken.Bytes:
case JsonToken.Comment:
case JsonToken.Date:
case JsonToken.EndArray:
case JsonToken.EndConstructor:
case JsonToken.EndObject:
case JsonToken.None:
case JsonToken.Raw:
case JsonToken.StartConstructor:
case JsonToken.Undefined:
default:
return null;
}
}
/// <summary>
/// Parses the list.
/// </summary>
/// <param name="asDictionaryKey">If set to <c>true</c> [as dictionary key].</param>
/// <param name="cache">The cache.</param>
/// <param name="handler">The handler.</param>
/// <returns>
/// The parsed list.
/// </returns>
public override object ParseList(bool asDictionaryKey, ReadCache cache, IListReadHandler handler)
{
// if nextToken == JsonToken.EndArray
if (jp.NextToken() != JsonToken.EndArray)
{
object firstVal = ParseVal(false, cache);
if (firstVal != null)
{
if (firstVal is string && (string)firstVal == Constants.DirectoryAsList)
{
// if the same, build a map w/ rest of array contents
return ParseDictionary(false, cache, null, JsonToken.EndArray);
}
else
if (firstVal is Tag)
{
if (firstVal is Tag)
{
object val;
jp.Read(); // advance to value
string tag = ((Tag)firstVal).GetValue();
IReadHandler val_handler;
if (TryGetHandler(tag, out val_handler))
{
if (this.jp.TokenType == JsonToken.StartObject && val_handler is IDictionaryReadHandler)
{
// use map reader to decode value
val = ParseDictionary(false, cache, (IDictionaryReadHandler)val_handler);
}
else
if (this.jp.TokenType == JsonToken.StartArray && val_handler is IListReadHandler)
{
// use array reader to decode value
val = ParseList(false, cache, (IListReadHandler)val_handler);
}
else
{
// read value and decode normally
val = val_handler.FromRepresentation(ParseVal(false, cache));
}
}
else
{
// default decode
val = this.Decode(tag, ParseVal(false, cache));
}
jp.Read(); // advance past end of object or array
return val;
}
}
}
// Process list w/o special decoding or interpretation
IListReader lr = (handler != null) ? handler.ListReader() : listBuilder;
object l = lr.Init();
l = lr.Add(l, firstVal);
while (jp.NextToken() != JsonToken.EndArray) {
l = lr.Add(l, ParseVal(false, cache));
}
return lr.Complete(l);
}
// Make an empty collection, honoring handler's ListReader, if present
IListReader lr2 = (handler != null) ? handler.ListReader() : listBuilder;
return lr2.Complete(lr2.Init());
}
/// <summary>
/// Parses the dictionary.
/// </summary>
/// <param name="ignored">if set to <c>true</c> [ignored].</param>
/// <param name="cache">The cache.</param>
/// <param name="handler">The handler.</param>
/// <param name="endToken">The end token.</param>
/// <returns></returns>
public object ParseDictionary(bool ignored, ReadCache cache, IDictionaryReadHandler handler, JsonToken endToken)
{
IDictionaryReader dr = (handler != null) ? handler.DictionaryReader() : dictionaryBuilder;
object d = dr.Init();
while (jp.NextToken() != endToken)
{
object key = ParseVal(true, cache);
if (key is Tag)
{
object val;
jp.Read(); // advance to read value
string tag = ((Tag)key).GetValue();
IReadHandler val_handler;
if (TryGetHandler(tag, out val_handler))
{
if (this.jp.TokenType == JsonToken.StartObject && val_handler is IDictionaryReadHandler) {
// use map reader to decode value
val = ParseDictionary(false, cache, (IDictionaryReadHandler)val_handler);
} else if (this.jp.TokenType == JsonToken.StartArray && val_handler is IListReadHandler) {
// use array reader to decode value
val = ParseList(false, cache, (IListReadHandler)val_handler);
} else {
// read value and decode normally
val = val_handler.FromRepresentation(ParseVal(false, cache));
}
} else {
// default decode
val = this.Decode(tag, ParseVal(false, cache));
}
jp.Read(); // advance to read end of object or array
return val;
}
else
{
jp.Read(); // advance to read value
d = dr.Add(d, key, ParseVal(false, cache));
}
}
return dr.Complete(d);
}
/// <summary>
/// Parses the list.
/// </summary>
/// <param name="asDictionaryKey">If set to <c>true</c> [as dictionary key].</param>
/// <param name="cache">The cache.</param>
/// <param name="handler">The handler.</param>
/// <returns>
/// The parsed list.
/// </returns>
public override object ParseList(bool asDictionaryKey, ReadCache cache, IListReadHandler handler)
{
// if nextToken == JsonToken.EndArray
if (jp.NextToken() != JsonToken.EndArray)
{
object firstVal = ParseVal(false, cache);
if (firstVal != null)
{
if (firstVal is string && (string)firstVal == Constants.DirectoryAsList)
{
// if the same, build a map w/ rest of array contents
return(ParseDictionary(false, cache, null, JsonToken.EndArray));
}
else
if (firstVal is Tag)
{
if (firstVal is Tag)
{
object val;
jp.Read(); // advance to value
string tag = ((Tag)firstVal).GetValue();
IReadHandler val_handler;
if (TryGetHandler(tag, out val_handler))
{
if (this.jp.TokenType == JsonToken.StartObject && val_handler is IDictionaryReadHandler)
{
// use map reader to decode value
val = ParseDictionary(false, cache, (IDictionaryReadHandler)val_handler);
}
else
if (this.jp.TokenType == JsonToken.StartArray && val_handler is IListReadHandler)
{
// use array reader to decode value
val = ParseList(false, cache, (IListReadHandler)val_handler);
}
else
{
// read value and decode normally
val = val_handler.FromRepresentation(ParseVal(false, cache));
}
}
else
{
// default decode
val = this.Decode(tag, ParseVal(false, cache));
}
jp.Read(); // advance past end of object or array
return(val);
}
}
}
// Process list w/o special decoding or interpretation
IListReader lr = (handler != null) ? handler.ListReader() : listBuilder;
object l = lr.Init();
l = lr.Add(l, firstVal);
while (jp.NextToken() != JsonToken.EndArray)
{
l = lr.Add(l, ParseVal(false, cache));
}
return(lr.Complete(l));
}
// Make an empty collection, honoring handler's ListReader, if present
IListReader lr2 = (handler != null) ? handler.ListReader() : listBuilder;
return(lr2.Complete(lr2.Init()));
}
/// <summary> /// Parses the value. /// </summary> /// <param name="asDictionaryKey">If set to <c>true</c> [as dictionary key].</param> /// <param name="cache">The cache.</param> /// <returns> /// The parsed value. /// </returns> public abstract object ParseVal(bool asDictionaryKey, ReadCache cache);
/// <summary>
/// Parses the dictionary.
/// </summary>
/// <param name="ignored">if set to <c>true</c> [ignored].</param>
/// <param name="cache">The cache.</param>
/// <param name="handler">The handler.</param>
/// <returns></returns>
public override object ParseDictionary(bool ignored, ReadCache cache, IDictionaryReadHandler handler)
{
return ParseDictionary(ignored, cache, handler, JsonToken.EndObject);
}
/// <summary> /// Parses the specified cache. /// </summary> /// <param name="cache">The cache.</param> /// <returns></returns> public abstract object Parse(ReadCache cache);
/// <summary>
/// Parses the dictionary.
/// </summary>
/// <param name="ignored">if set to <c>true</c> [ignored].</param>
/// <param name="cache">The cache.</param>
/// <param name="handler">The handler.</param>
/// <returns></returns>
public override object ParseDictionary(bool ignored, ReadCache cache, IDictionaryReadHandler handler)
{
return(ParseDictionary(ignored, cache, handler, JsonToken.EndObject));
}
