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

Example 71 with JSONLexer

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

the class EnumDeserializer method deserialze.

@SuppressWarnings("unchecked")
public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
    try {
        Object value;
        final JSONLexer lexer = parser.lexer;
        final int token = lexer.token();
        if (token == JSONToken.LITERAL_INT) {
            int intValue = lexer.intValue();
            lexer.nextToken(JSONToken.COMMA);
            if (intValue < 0 || intValue > ordinalEnums.length) {
                throw new JSONException("parse enum " + enumClass.getName() + " error, value : " + intValue);
            }
            return (T) ordinalEnums[intValue];
        } else if (token == JSONToken.LITERAL_STRING) {
            String name = lexer.stringVal();
            lexer.nextToken(JSONToken.COMMA);
            if (name.length() == 0) {
                return (T) null;
            }
            long hash = 0xcbf29ce484222325L;
            for (int j = 0; j < name.length(); ++j) {
                char ch = name.charAt(j);
                hash ^= ch;
                hash *= 0x100000001b3L;
            }
            return (T) getEnumByHashCode(hash);
        } else if (token == JSONToken.NULL) {
            value = null;
            lexer.nextToken(JSONToken.COMMA);
            return null;
        } else {
            value = parser.parse();
        }
        throw new JSONException("parse enum " + enumClass.getName() + " error, value : " + value);
    } catch (JSONException e) {
        throw e;
    } catch (Exception e) {
        throw new JSONException(e.getMessage(), e);
    }
}

Example 72 with JSONLexer

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

the class AwtCodec method parseFont.

protected Font parseFont(DefaultJSONParser parser) {
    JSONLexer lexer = parser.lexer;
    int size = 0, style = 0;
    String name = null;
    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");
        }
        if (key.equalsIgnoreCase("name")) {
            if (lexer.token() == JSONToken.LITERAL_STRING) {
                name = lexer.stringVal();
                lexer.nextToken();
            } else {
                throw new JSONException("syntax error");
            }
        } else if (key.equalsIgnoreCase("style")) {
            if (lexer.token() == JSONToken.LITERAL_INT) {
                style = lexer.intValue();
                lexer.nextToken();
            } else {
                throw new JSONException("syntax error");
            }
        } else if (key.equalsIgnoreCase("size")) {
            if (lexer.token() == JSONToken.LITERAL_INT) {
                size = lexer.intValue();
                lexer.nextToken();
            } else {
                throw new JSONException("syntax error");
            }
        } else {
            throw new JSONException("syntax error, " + key);
        }
        if (lexer.token() == JSONToken.COMMA) {
            lexer.nextToken(JSONToken.LITERAL_STRING);
        }
    }
    return new Font(name, style, size);
}

Example 73 with JSONLexer

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

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 74 with JSONLexer

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

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 75 with JSONLexer

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

the class AwtCodec method parseRectangle.

protected Rectangle parseRectangle(DefaultJSONParser parser) {
    JSONLexer lexer = parser.lexer;
    int x = 0, y = 0, width = 0, height = 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;
        int token = lexer.token();
        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");
        }
        if (key.equalsIgnoreCase("x")) {
            x = val;
        } else if (key.equalsIgnoreCase("y")) {
            y = val;
        } else if (key.equalsIgnoreCase("width")) {
            width = val;
        } else if (key.equalsIgnoreCase("height")) {
            height = val;
        } else {
            throw new JSONException("syntax error, " + key);
        }
        if (lexer.token() == JSONToken.COMMA) {
            lexer.nextToken(JSONToken.LITERAL_STRING);
        }
    }
    return new Rectangle(x, y, width, height);
}