Examples with JSONLexer com.alibaba.fastjson.parser.JSONLexer used on opensource projects

Example 61 with JSONLexer

use of com.alibaba.fastjson.parser.JSONLexer in project fastjson by alibaba.

the class AwtCodec method deserialze.

@SuppressWarnings("unchecked")
public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
    JSONLexer lexer = parser.lexer;
    if (lexer.token() == JSONToken.NULL) {
        lexer.nextToken(JSONToken.COMMA);
        return null;
    }
    if (lexer.token() != JSONToken.LBRACE && lexer.token() != JSONToken.COMMA) {
        throw new JSONException("syntax error");
    }
    lexer.nextToken();
    T obj;
    if (type == Point.class) {
        obj = (T) parsePoint(parser, fieldName);
    } else if (type == Rectangle.class) {
        obj = (T) parseRectangle(parser);
    } else if (type == Color.class) {
        obj = (T) parseColor(parser);
    } else if (type == Font.class) {
        obj = (T) parseFont(parser);
    } else {
        throw new JSONException("not support awt class : " + type);
    }
    ParseContext context = parser.getContext();
    parser.setContext(obj, fieldName);
    parser.setContext(context);
    return obj;
}

Example 62 with JSONLexer

use of com.alibaba.fastjson.parser.JSONLexer in project fastjson by alibaba.

the class AwtCodec method parsePoint.

protected Point parsePoint(DefaultJSONParser parser, Object fieldName) {
    JSONLexer lexer = parser.lexer;
    int x = 0, y = 0;
    for (; ; ) {
        if (lexer.token() == JSONToken.RBRACE) {
            lexer.nextToken();
            break;
        }
        String key;
        if (lexer.token() == JSONToken.LITERAL_STRING) {
            key = lexer.stringVal();
            if (JSON.DEFAULT_TYPE_KEY.equals(key)) {
                parser.acceptType("java.awt.Point");
                continue;
            }
            if ("$ref".equals(key)) {
                return (Point) parseRef(parser, fieldName);
            }
            lexer.nextTokenWithColon(JSONToken.LITERAL_INT);
        } else {
            throw new JSONException("syntax error");
        }
        int token = lexer.token();
        int val;
        if (token == JSONToken.LITERAL_INT) {
            val = lexer.intValue();
            lexer.nextToken();
        } else if (token == JSONToken.LITERAL_FLOAT) {
            val = (int) lexer.floatValue();
            lexer.nextToken();
        } else {
            throw new JSONException("syntax error : " + lexer.tokenName());
        }
        if (key.equalsIgnoreCase("x")) {
            x = val;
        } else if (key.equalsIgnoreCase("y")) {
            y = val;
        } else {
            throw new JSONException("syntax error, " + key);
        }
        if (lexer.token() == JSONToken.COMMA) {
            lexer.nextToken(JSONToken.LITERAL_STRING);
        }
    }
    return new Point(x, y);
}

Example 63 with JSONLexer

use of com.alibaba.fastjson.parser.JSONLexer in project fastjson by alibaba.

the class AwtCodec method parseColor.

protected Color parseColor(DefaultJSONParser parser) {
    JSONLexer lexer = parser.lexer;
    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 new Color(r, g, b, alpha);
}

Example 64 with JSONLexer

use of com.alibaba.fastjson.parser.JSONLexer in project fastjson by alibaba.

the class Jdk8DateCodec method deserialze.

@SuppressWarnings("unchecked")
public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName, String format, int feature) {
    JSONLexer lexer = parser.lexer;
    if (lexer.token() == JSONToken.NULL) {
        lexer.nextToken();
        return null;
    }
    if (lexer.token() == JSONToken.LITERAL_STRING) {
        String text = lexer.stringVal();
        lexer.nextToken();
        DateTimeFormatter formatter = null;
        if (format != null) {
            if (defaultPatttern.equals(format)) {
                formatter = defaultFormatter;
            } else {
                formatter = DateTimeFormatter.ofPattern(format);
            }
        }
        if ("".equals(text)) {
            return null;
        }
        if (type == LocalDateTime.class) {
            LocalDateTime localDateTime;
            if (text.length() == 10 || text.length() == 8) {
                LocalDate localDate = parseLocalDate(text, format, formatter);
                localDateTime = LocalDateTime.of(localDate, LocalTime.MIN);
            } else {
                localDateTime = parseDateTime(text, formatter);
            }
            return (T) localDateTime;
        } else if (type == LocalDate.class) {
            LocalDate localDate;
            if (text.length() == 23) {
                LocalDateTime localDateTime = LocalDateTime.parse(text);
                localDate = LocalDate.of(localDateTime.getYear(), localDateTime.getMonthValue(), localDateTime.getDayOfMonth());
            } else {
                localDate = parseLocalDate(text, format, formatter);
            }
            return (T) localDate;
        } else if (type == LocalTime.class) {
            LocalTime localTime;
            if (text.length() == 23) {
                LocalDateTime localDateTime = LocalDateTime.parse(text);
                localTime = LocalTime.of(localDateTime.getHour(), localDateTime.getMinute(), localDateTime.getSecond(), localDateTime.getNano());
            } else {
                boolean digit = true;
                for (int i = 0; i < text.length(); ++i) {
                    char ch = text.charAt(i);
                    if (ch < '0' || ch > '9') {
                        digit = false;
                        break;
                    }
                }
                if (digit && text.length() > 8 && text.length() < 19) {
                    long epochMillis = Long.parseLong(text);
                    localTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(epochMillis), JSON.defaultTimeZone.toZoneId()).toLocalTime();
                } else {
                    localTime = LocalTime.parse(text);
                }
            }
            return (T) localTime;
        } else if (type == ZonedDateTime.class) {
            if (formatter == defaultFormatter) {
                formatter = ISO_FIXED_FORMAT;
            }
            if (formatter == null) {
                if (text.length() <= 19) {
                    JSONScanner s = new JSONScanner(text);
                    TimeZone timeZone = parser.lexer.getTimeZone();
                    s.setTimeZone(timeZone);
                    boolean match = s.scanISO8601DateIfMatch(false);
                    if (match) {
                        Date date = s.getCalendar().getTime();
                        return (T) ZonedDateTime.ofInstant(date.toInstant(), timeZone.toZoneId());
                    }
                }
            }
            ZonedDateTime zonedDateTime = parseZonedDateTime(text, formatter);
            return (T) zonedDateTime;
        } else if (type == OffsetDateTime.class) {
            OffsetDateTime offsetDateTime = OffsetDateTime.parse(text);
            return (T) offsetDateTime;
        } else if (type == OffsetTime.class) {
            OffsetTime offsetTime = OffsetTime.parse(text);
            return (T) offsetTime;
        } else if (type == ZoneId.class) {
            ZoneId offsetTime = ZoneId.of(text);
            return (T) offsetTime;
        } else if (type == Period.class) {
            Period period = Period.parse(text);
            return (T) period;
        } else if (type == Duration.class) {
            Duration duration = Duration.parse(text);
            return (T) duration;
        } else if (type == Instant.class) {
            boolean digit = true;
            for (int i = 0; i < text.length(); ++i) {
                char ch = text.charAt(i);
                if (ch < '0' || ch > '9') {
                    digit = false;
                    break;
                }
            }
            if (digit && text.length() > 8 && text.length() < 19) {
                long epochMillis = Long.parseLong(text);
                return (T) Instant.ofEpochMilli(epochMillis);
            }
            Instant instant = Instant.parse(text);
            return (T) instant;
        }
    } else if (lexer.token() == JSONToken.LITERAL_INT) {
        long millis = lexer.longValue();
        lexer.nextToken();
        if ("unixtime".equals(format)) {
            millis *= 1000;
        } else if ("yyyyMMddHHmmss".equals(format)) {
            int yyyy = (int) (millis / 10000000000L);
            int MM = (int) ((millis / 100000000L) % 100);
            int dd = (int) ((millis / 1000000L) % 100);
            int HH = (int) ((millis / 10000L) % 100);
            int mm = (int) ((millis / 100L) % 100);
            int ss = (int) (millis % 100);
            if (type == LocalDateTime.class) {
                return (T) LocalDateTime.of(yyyy, MM, dd, HH, mm, ss);
            }
        }
        if (type == LocalDateTime.class) {
            return (T) LocalDateTime.ofInstant(Instant.ofEpochMilli(millis), JSON.defaultTimeZone.toZoneId());
        }
        if (type == LocalDate.class) {
            return (T) LocalDateTime.ofInstant(Instant.ofEpochMilli(millis), JSON.defaultTimeZone.toZoneId()).toLocalDate();
        }
        if (type == LocalTime.class) {
            return (T) LocalDateTime.ofInstant(Instant.ofEpochMilli(millis), JSON.defaultTimeZone.toZoneId()).toLocalTime();
        }
        if (type == ZonedDateTime.class) {
            return (T) ZonedDateTime.ofInstant(Instant.ofEpochMilli(millis), JSON.defaultTimeZone.toZoneId());
        }
        if (type == Instant.class) {
            return (T) Instant.ofEpochMilli(millis);
        }
        throw new UnsupportedOperationException();
    } else if (lexer.token() == JSONToken.LBRACE) {
        JSONObject object = parser.parseObject();
        if (type == Instant.class) {
            Object epochSecond = object.get("epochSecond");
            Object nano = object.get("nano");
            if (epochSecond instanceof Number && nano instanceof Number) {
                return (T) Instant.ofEpochSecond(TypeUtils.longExtractValue((Number) epochSecond), TypeUtils.longExtractValue((Number) nano));
            }
            if (epochSecond instanceof Number) {
                return (T) Instant.ofEpochSecond(TypeUtils.longExtractValue((Number) epochSecond));
            }
        }
    } else {
        throw new UnsupportedOperationException();
    }
    return null;
}

Example 65 with JSONLexer

use of com.alibaba.fastjson.parser.JSONLexer in project fastjson by alibaba.

the class JSONReader method readString.

public String readString() {
    Object object;
    if (context == null) {
        object = parser.parse();
    } else {
        readBefore();
        JSONLexer lexer = parser.lexer;
        if (context.state == JSONStreamContext.StartObject && lexer.token() == JSONToken.IDENTIFIER) {
            object = lexer.stringVal();
            lexer.nextToken();
        } else {
            object = parser.parse();
        }
        readAfter();
    }
    return TypeUtils.castToString(object);
}