#region Header
/**
* JsonData.cs
* Generic type to hold JSON data (objects, arrays, and so on). This is
* the default type returned by JsonMapper.ToObject().
*
* The authors disclaim copyright to this source code. For more details, see
* the COPYING file included with this distribution.
**/
#endregion
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
namespace LitJson{
public class JsonData : IJsonWrapper, IEquatable<JsonData>
{
#region Fields
private IList<JsonData> inst_array;
private bool inst_boolean;
private double inst_double;
private int inst_int;
private long inst_long;
private IDictionary<string, JsonData> inst_object;
private string inst_string;
private string json;
private JsonType type;
// Used to implement the IOrderedDictionary interface
private IList<KeyValuePair<string, JsonData>> object_list;
#endregion
#region Properties
public int Count {
get { return EnsureCollection ().Count; }
}
public bool IsArray {
get { return type == JsonType.Array; }
}
public bool IsBoolean {
get { return type == JsonType.Boolean; }
}
public bool IsDouble {
get { return type == JsonType.Double; }
}
public bool IsInt {
get { return type == JsonType.Int; }
}
public bool IsLong {
get { return type == JsonType.Long; }
}
public bool IsObject {
get { return type == JsonType.Object; }
}
public bool IsString {
get { return type == JsonType.String; }
}
#endregion
#region ICollection Properties
int ICollection.Count {
get {
return Count;
}
}
bool ICollection.IsSynchronized {
get {
return EnsureCollection ().IsSynchronized;
}
}
object ICollection.SyncRoot {
get {
return EnsureCollection ().SyncRoot;
}
}
#endregion
#region IDictionary Properties
bool IDictionary.IsFixedSize {
get {
return EnsureDictionary ().IsFixedSize;
}
}
bool IDictionary.IsReadOnly {
get {
return EnsureDictionary ().IsReadOnly;
}
}
ICollection IDictionary.Keys {
get {
EnsureDictionary ();
IList<string> keys = new List<string> ();
foreach (KeyValuePair<string, JsonData> entry in
object_list) {
keys.Add (entry.Key);
}
return (ICollection) keys;
}
}
ICollection IDictionary.Values {
get {
EnsureDictionary ();
IList<JsonData> values = new List<JsonData> ();
foreach (KeyValuePair<string, JsonData> entry in
object_list) {
values.Add (entry.Value);
}
return (ICollection) values;
}
}
#endregion
#region IJsonWrapper Properties
bool IJsonWrapper.IsArray {
get { return IsArray; }
}
bool IJsonWrapper.IsBoolean {
get { return IsBoolean; }
}
bool IJsonWrapper.IsDouble {
get { return IsDouble; }
}
bool IJsonWrapper.IsInt {
get { return IsInt; }
}
bool IJsonWrapper.IsLong {
get { return IsLong; }
}
bool IJsonWrapper.IsObject {
get { return IsObject; }
}
bool IJsonWrapper.IsString {
get { return IsString; }
}
#endregion
#region IList Properties
bool IList.IsFixedSize {
get {
return EnsureList ().IsFixedSize;
}
}
bool IList.IsReadOnly {
get {
return EnsureList ().IsReadOnly;
}
}
#endregion
#region IDictionary Indexer
object IDictionary.this[object key] {
get {
return EnsureDictionary ()[key];
}
set {
if (! (key is String))
throw new ArgumentException (
"The key has to be a string");
JsonData data = ToJsonData (value);
this[(string) key] = data;
}
}
#endregion
#region IOrderedDictionary Indexer
object IOrderedDictionary.this[int idx] {
get {
EnsureDictionary ();
return object_list[idx].Value;
}
set {
EnsureDictionary ();
JsonData data = ToJsonData (value);
KeyValuePair<string, JsonData> old_entry = object_list[idx];
inst_object[old_entry.Key] = data;
KeyValuePair<string, JsonData> entry =
new KeyValuePair<string, JsonData> (old_entry.Key, data);
object_list[idx] = entry;
}
}
#endregion
#region IList Indexer
object IList.this[int index] {
get {
return EnsureList ()[index];
}
set {
EnsureList ();
JsonData data = ToJsonData (value);
this[index] = data;
}
}
#endregion
#region Public Indexers
public JsonData this[string prop_name] {
get {
EnsureDictionary ();
return inst_object[prop_name];
}
set {
EnsureDictionary ();
KeyValuePair<string, JsonData> entry =
new KeyValuePair<string, JsonData> (prop_name, value);
if (inst_object.ContainsKey (prop_name)) {
for (int i = 0; i < object_list.Count; i++) {
if (object_list[i].Key == prop_name) {
object_list[i] = entry;
break;
}
}
} else
object_list.Add (entry);
inst_object[prop_name] = value;
json = null;
}
}
public JsonData this[int index] {
get {
EnsureCollection ();
if (type == JsonType.Array)
return inst_array[index];
return object_list[index].Value;
}
set {
EnsureCollection ();
if (type == JsonType.Array)
inst_array[index] = value;
else {
KeyValuePair<string, JsonData> entry = object_list[index];
KeyValuePair<string, JsonData> new_entry =
new KeyValuePair<string, JsonData> (entry.Key, value);
object_list[index] = new_entry;
inst_object[entry.Key] = value;
}
json = null;
}
}
#endregion
#region Constructors
public JsonData ()
{
}
public JsonData (bool boolean)
{
type = JsonType.Boolean;
inst_boolean = boolean;
}
public JsonData (double number)
{
type = JsonType.Double;
inst_double = number;
}
public JsonData (int number)
{
type = JsonType.Int;
inst_int = number;
}
public JsonData (long number)
{
type = JsonType.Long;
inst_long = number;
}
public JsonData (object obj)
{
if (obj is Boolean) {
type = JsonType.Boolean;
inst_boolean = (bool) obj;
return;
}
if (obj is Double) {
type = JsonType.Double;
inst_double = (double) obj;
return;
}
if (obj is Int32) {
type = JsonType.Int;
inst_int = (int) obj;
return;
}
if (obj is Int64) {
type = JsonType.Long;
inst_long = (long) obj;
return;
}
if (obj is String) {
type = JsonType.String;
inst_string = (string) obj;
return;
}
throw new ArgumentException (
"Unable to wrap the given object with JsonData");
}
public JsonData (string str)
{
type = JsonType.String;
inst_string = str;
}
#endregion
#region Implicit Conversions
public static implicit operator JsonData (Boolean data)
{
return new JsonData (data);
}
public static implicit operator JsonData (Double data)
{
return new JsonData (data);
}
public static implicit operator JsonData (Int32 data)
{
return new JsonData (data);
}
public static implicit operator JsonData (Int64 data)
{
return new JsonData (data);
}
public static implicit operator JsonData (String data)
{
return new JsonData (data);
}
#endregion
#region Explicit Conversions
public static explicit operator Boolean (JsonData data)
{
if (data.type != JsonType.Boolean)
throw new InvalidCastException (
"Instance of JsonData doesn't hold a double");
return data.inst_boolean;
}
public static explicit operator Double (JsonData data)
{
if (data.type != JsonType.Double)
throw new InvalidCastException (
"Instance of JsonData doesn't hold a double");
return data.inst_double;
}
public static explicit operator Int32 (JsonData data)
{
if (data.type != JsonType.Int)
throw new InvalidCastException (
"Instance of JsonData doesn't hold an int");
return data.inst_int;
}
public static explicit operator Int64 (JsonData data)
{
if (data.type != JsonType.Long)
throw new InvalidCastException (
"Instance of JsonData doesn't hold an int");
return data.inst_long;
}
public static explicit operator String (JsonData data)
{
if (data.type != JsonType.String)
throw new InvalidCastException (
"Instance of JsonData doesn't hold a string");
return data.inst_string;
}
#endregion
#region ICollection Methods
void ICollection.CopyTo (Array array, int index)
{
EnsureCollection ().CopyTo (array, index);
}
#endregion
#region IDictionary Methods
void IDictionary.Add (object key, object value)
{
JsonData data = ToJsonData (value);
EnsureDictionary ().Add (key, data);
KeyValuePair<string, JsonData> entry =
new KeyValuePair<string, JsonData> ((string) key, data);
object_list.Add (entry);
json = null;
}
void IDictionary.Clear ()
{
EnsureDictionary ().Clear ();
object_list.Clear ();
json = null;
}
bool IDictionary.Contains (object key)
{
return EnsureDictionary ().Contains (key);
}
IDictionaryEnumerator IDictionary.GetEnumerator ()
{
return ((IOrderedDictionary) this).GetEnumerator ();
}
void IDictionary.Remove (object key)
{
EnsureDictionary ().Remove (key);
for (int i = 0; i < object_list.Count; i++) {
if (object_list[i].Key == (string) key) {
object_list.RemoveAt (i);
break;
}
}
json = null;
}
#endregion
#region IEnumerable Methods
IEnumerator IEnumerable.GetEnumerator ()
{
return EnsureCollection ().GetEnumerator ();
}
#endregion
#region IJsonWrapper Methods
bool IJsonWrapper.GetBoolean ()
{
if (type != JsonType.Boolean)
throw new InvalidOperationException (
"JsonData instance doesn't hold a boolean");
return inst_boolean;
}
double IJsonWrapper.GetDouble ()
{
if (type != JsonType.Double)
throw new InvalidOperationException (
"JsonData instance doesn't hold a double");
return inst_double;
}
int IJsonWrapper.GetInt ()
{
if (type != JsonType.Int)
throw new InvalidOperationException (
"JsonData instance doesn't hold an int");
return inst_int;
}
long IJsonWrapper.GetLong ()
{
if (type != JsonType.Long)
throw new InvalidOperationException (
"JsonData instance doesn't hold a long");
return inst_long;
}
string IJsonWrapper.GetString ()
{
if (type != JsonType.String)
throw new InvalidOperationException (
"JsonData instance doesn't hold a string");
return inst_string;
}
void IJsonWrapper.SetBoolean (bool val)
{
type = JsonType.Boolean;
inst_boolean = val;
json = null;
}
void IJsonWrapper.SetDouble (double val)
{
type = JsonType.Double;
inst_double = val;
json = null;
}
void IJsonWrapper.SetInt (int val)
{
type = JsonType.Int;
inst_int = val;
json = null;
}
void IJsonWrapper.SetLong (long val)
{
type = JsonType.Long;
inst_long = val;
json = null;
}
void IJsonWrapper.SetString (string val)
{
type = JsonType.String;
inst_string = val;
json = null;
}
string IJsonWrapper.ToJson ()
{
return ToJson ();
}
void IJsonWrapper.ToJson (JsonWriter writer)
{
ToJson (writer);
}
#endregion
#region IList Methods
int IList.Add (object value)
{
return Add (value);
}
void IList.Clear ()
{
EnsureList ().Clear ();
json = null;
}
bool IList.Contains (object value)
{
return EnsureList ().Contains (value);
}
int IList.IndexOf (object value)
{
return EnsureList ().IndexOf (value);
}
void IList.Insert (int index, object value)
{
EnsureList ().Insert (index, value);
json = null;
}
void IList.Remove (object value)
{
EnsureList ().Remove (value);
json = null;
}
void IList.RemoveAt (int index)
{
EnsureList ().RemoveAt (index);
json = null;
}
#endregion
#region IOrderedDictionary Methods
IDictionaryEnumerator IOrderedDictionary.GetEnumerator ()
{
EnsureDictionary ();
return new OrderedDictionaryEnumerator (
object_list.GetEnumerator ());
}
void IOrderedDictionary.Insert (int idx, object key, object value)
{
string property = (string) key;
JsonData data = ToJsonData (value);
this[property] = data;
KeyValuePair<string, JsonData> entry =
new KeyValuePair<string, JsonData> (property, data);
object_list.Insert (idx, entry);
}
void IOrderedDictionary.RemoveAt (int idx)
{
EnsureDictionary ();
inst_object.Remove (object_list[idx].Key);
object_list.RemoveAt (idx);
}
#endregion
#region Private Methods
private ICollection EnsureCollection ()
{
if (type == JsonType.Array)
return (ICollection) inst_array;
if (type == JsonType.Object)
return (ICollection) inst_object;
throw new InvalidOperationException (
"The JsonData instance has to be initialized first");
}
private IDictionary EnsureDictionary ()
{
if (type == JsonType.Object)
return (IDictionary) inst_object;
if (type != JsonType.None)
throw new InvalidOperationException (
"Instance of JsonData is not a dictionary");
type = JsonType.Object;
inst_object = new Dictionary<string, JsonData> ();
object_list = new List<KeyValuePair<string, JsonData>> ();
return (IDictionary) inst_object;
}
private IList EnsureList ()
{
if (type == JsonType.Array)
return (IList) inst_array;
if (type != JsonType.None)
throw new InvalidOperationException (
"Instance of JsonData is not a list");
type = JsonType.Array;
inst_array = new List<JsonData> ();
return (IList) inst_array;
}
private JsonData ToJsonData (object obj)
{
if (obj == null)
return null;
if (obj is JsonData)
return (JsonData) obj;
return new JsonData (obj);
}
private static void WriteJson (IJsonWrapper obj, JsonWriter writer)
{
if (obj.IsString) {
writer.Write (obj.GetString ());
return;
}
if (obj.IsBoolean) {
writer.Write (obj.GetBoolean ());
return;
}
if (obj.IsDouble) {
writer.Write (obj.GetDouble ());
return;
}
if (obj.IsInt) {
writer.Write (obj.GetInt ());
return;
}
if (obj.IsLong) {
writer.Write (obj.GetLong ());
return;
}
if (obj.IsArray) {
writer.WriteArrayStart ();
foreach (object elem in (IList) obj)
WriteJson ((JsonData) elem, writer);
writer.WriteArrayEnd ();
return;
}
if (obj.IsObject) {
writer.WriteObjectStart ();
foreach (DictionaryEntry entry in ((IDictionary) obj)) {
writer.WritePropertyName ((string) entry.Key);
WriteJson ((JsonData) entry.Value, writer);
}
writer.WriteObjectEnd ();
return;
}
}
#endregion
public int Add (object value)
{
JsonData data = ToJsonData (value);
json = null;
return EnsureList ().Add (data);
}
public void Clear ()
{
if (IsObject) {
((IDictionary) this).Clear ();
return;
}
if (IsArray) {
((IList) this).Clear ();
return;
}
}
public bool Equals (JsonData x)
{
if (x == null)
return false;
if (x.type != this.type)
return false;
switch (this.type) {
case JsonType.None:
return true;
case JsonType.Object:
return this.inst_object.Equals (x.inst_object);
case JsonType.Array:
return this.inst_array.Equals (x.inst_array);
case JsonType.String:
return this.inst_string.Equals (x.inst_string);
case JsonType.Int:
return this.inst_int.Equals (x.inst_int);
case JsonType.Long:
return this.inst_long.Equals (x.inst_long);
case JsonType.Double:
return this.inst_double.Equals (x.inst_double);
case JsonType.Boolean:
return this.inst_boolean.Equals (x.inst_boolean);
}
return false;
}
public JsonType GetJsonType ()
{
return type;
}
public void SetJsonType (JsonType type)
{
if (this.type == type)
return;
switch (type) {
case JsonType.None:
break;
case JsonType.Object:
inst_object = new Dictionary<string, JsonData> ();
object_list = new List<KeyValuePair<string, JsonData>> ();
break;
case JsonType.Array:
inst_array = new List<JsonData> ();
break;
case JsonType.String:
inst_string = default (String);
break;
case JsonType.Int:
inst_int = default (Int32);
break;
case JsonType.Long:
inst_long = default (Int64);
break;
case JsonType.Double:
inst_double = default (Double);
break;
case JsonType.Boolean:
inst_boolean = default (Boolean);
break;
}
this.type = type;
}
public string ToJson ()
{
if (json != null)
return json;
StringWriter sw = new StringWriter ();
JsonWriter writer = new JsonWriter (sw);
writer.Validate = false;
WriteJson (this, writer);
json = sw.ToString ();
return json;
}
public void ToJson (JsonWriter writer)
{
bool old_validate = writer.Validate;
writer.Validate = false;
WriteJson (this, writer);
writer.Validate = old_validate;
}
public override string ToString ()
{
switch (type) {
case JsonType.Array:
return "JsonData array";
case JsonType.Boolean:
return inst_boolean.ToString ();
case JsonType.Double:
return inst_double.ToString ();
case JsonType.Int:
return inst_int.ToString ();
case JsonType.Long:
return inst_long.ToString ();
case JsonType.Object:
return "JsonData object";
case JsonType.String:
return inst_string;
}
return "Uninitialized JsonData";
}
}
internal class OrderedDictionaryEnumerator : IDictionaryEnumerator
{
IEnumerator<KeyValuePair<string, JsonData>> list_enumerator;
public object Current {
get { return Entry; }
}
public DictionaryEntry Entry {
get {
KeyValuePair<string, JsonData> curr = list_enumerator.Current;
return new DictionaryEntry (curr.Key, curr.Value);
}
}
public object Key {
get { return list_enumerator.Current.Key; }
}
public object Value {
get { return list_enumerator.Current.Value; }
}
public OrderedDictionaryEnumerator (
IEnumerator<KeyValuePair<string, JsonData>> enumerator)
{
list_enumerator = enumerator;
}
public bool MoveNext ()
{
return list_enumerator.MoveNext ();
}
public void Reset ()
{
list_enumerator.Reset ();
}
}
}
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