package com.alibaba.fastjson.serializer;
import java.awt.Color;
import java.io.IOException;
import java.lang.reflect.Type;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONException;
import com.alibaba.fastjson.parser.DefaultJSONParser;
import com.alibaba.fastjson.parser.JSONLexer;
import com.alibaba.fastjson.parser.JSONToken;
import com.alibaba.fastjson.parser.deserializer.ObjectDeserializer;
public class ColorCodec implements ObjectSerializer, ObjectDeserializer {
public final static ColorCodec instance = new ColorCodec();
public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features) throws IOException {
SerializeWriter out = serializer.getWriter();
Color color = (Color) object;
if (color == null) {
out.writeNull();
return;
}
char sep = '{';
if (out.isEnabled(SerializerFeature.WriteClassName)) {
out.write('{');
out.writeFieldName(JSON.DEFAULT_TYPE_KEY);
out.writeString(Color.class.getName());
sep = ',';
}
out.writeFieldValue(sep, "r", color.getRed());
out.writeFieldValue(',', "g", color.getGreen());
out.writeFieldValue(',', "b", color.getBlue());
if (color.getAlpha() > 0) {
out.writeFieldValue(',', "alpha", color.getAlpha());
}
out.write('}');
}
@SuppressWarnings("unchecked")
public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
JSONLexer lexer = parser.getLexer();
if (lexer.token() != JSONToken.LBRACE && lexer.token() != JSONToken.COMMA) {
throw new JSONException("syntax error");
}
lexer.nextToken();
int r = 0, g = 0, b = 0, alpha = 0;
for (;;) {
if (lexer.token() == JSONToken.RBRACE) {
lexer.nextToken();
break;
}
String key;
if (lexer.token() == JSONToken.LITERAL_STRING) {
key = lexer.stringVal();
lexer.nextTokenWithColon(JSONToken.LITERAL_INT);
} else {
throw new JSONException("syntax error");
}
int val;
if (lexer.token() == JSONToken.LITERAL_INT) {
val = lexer.intValue();
lexer.nextToken();
} else {
throw new JSONException("syntax error");
}
if (key.equalsIgnoreCase("r")) {
r = val;
} else if (key.equalsIgnoreCase("g")) {
g = val;
} else if (key.equalsIgnoreCase("b")) {
b = val;
} else if (key.equalsIgnoreCase("alpha")) {
alpha = val;
} else {
throw new JSONException("syntax error, " + key);
}
if (lexer.token() == JSONToken.COMMA) {
lexer.nextToken(JSONToken.LITERAL_STRING);
}
}
return (T) new Color(r, g, b, alpha);
}
public int getFastMatchToken() {
return JSONToken.LBRACE;
}
}