Package com.alibaba.fastjson.parser

Examples of com.alibaba.fastjson.parser.JSONLexer

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    public final static MapDeserializer instance = new MapDeserializer();

    @SuppressWarnings("unchecked")
    public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
        final JSONLexer lexer = parser.getLexer();
        if (lexer.token() == JSONToken.NULL) {
            lexer.nextToken(JSONToken.COMMA);
            return null;
        }

        Map<Object, Object> map = createMap(type);
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        }
    }
   
    @SuppressWarnings("rawtypes")
    public static Map parseMap(DefaultJSONParser parser, Map<String, Object> map, Type valueType, Object fieldName) {
        JSONLexer lexer = parser.getLexer();

        if (lexer.token() != JSONToken.LBRACE) {
            throw new JSONException("syntax error, expect {, actual " + lexer.token());
        }

        ParseContext context = parser.getContext();
        try {
            for (;;) {
                lexer.skipWhitespace();
                char ch = lexer.getCurrent();
                if (parser.isEnabled(Feature.AllowArbitraryCommas)) {
                    while (ch == ',') {
                        lexer.next();
                        lexer.skipWhitespace();
                        ch = lexer.getCurrent();
                    }
                }

                String key;
                if (ch == '"') {
                    key = lexer.scanSymbol(parser.getSymbolTable(), '"');
                    lexer.skipWhitespace();
                    ch = lexer.getCurrent();
                    if (ch != ':') {
                        throw new JSONException("expect ':' at " + lexer.pos());
                    }
                } else if (ch == '}') {
                    lexer.next();
                    lexer.resetStringPosition();
                    lexer.nextToken(JSONToken.COMMA);
                    return map;
                } else if (ch == '\'') {
                    if (!parser.isEnabled(Feature.AllowSingleQuotes)) {
                        throw new JSONException("syntax error");
                    }

                    key = lexer.scanSymbol(parser.getSymbolTable(), '\'');
                    lexer.skipWhitespace();
                    ch = lexer.getCurrent();
                    if (ch != ':') {
                        throw new JSONException("expect ':' at " + lexer.pos());
                    }
                } else {
                    if (!parser.isEnabled(Feature.AllowUnQuotedFieldNames)) {
                        throw new JSONException("syntax error");
                    }

                    key = lexer.scanSymbolUnQuoted(parser.getSymbolTable());
                    lexer.skipWhitespace();
                    ch = lexer.getCurrent();
                    if (ch != ':') {
                        throw new JSONException("expect ':' at " + lexer.pos() + ", actual " + ch);
                    }
                }

                lexer.next();
                lexer.skipWhitespace();
                ch = lexer.getCurrent();

                lexer.resetStringPosition();

                if (key == JSON.DEFAULT_TYPE_KEY) {
                    String typeName = lexer.scanSymbol(parser.getSymbolTable(), '"');
                    Class<?> clazz = TypeUtils.loadClass(typeName);

                    if (clazz == map.getClass()) {
                        lexer.nextToken(JSONToken.COMMA);
                        if (lexer.token() == JSONToken.RBRACE) {
                            lexer.nextToken(JSONToken.COMMA);
                            return map;
                        }
                        continue;
                    }

                    ObjectDeserializer deserializer = parser.getConfig().getDeserializer(clazz);

                    lexer.nextToken(JSONToken.COMMA);

                    parser.setResolveStatus(DefaultJSONParser.TypeNameRedirect);

                    if (context != null && !(fieldName instanceof Integer)) {
                        parser.popContext();
                    }

                    return (Map) deserializer.deserialze(parser, clazz, fieldName);
                }

                Object value;
                lexer.nextToken();

                if (lexer.token() == JSONToken.NULL) {
                    value = null;
                    lexer.nextToken();
                } else {
                    value = parser.parseObject(valueType);
                }

                map.put(key, value);
                parser.checkMapResolve(map, key);

                parser.setContext(context, value, key);

                final int tok = lexer.token();
                if (tok == JSONToken.EOF || tok == JSONToken.RBRACKET) {
                    return map;
                }

                if (tok == JSONToken.RBRACE) {
                    lexer.nextToken();
                    return map;
                }
            }
        } finally {
            parser.setContext(context);
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    }
   
    public static Object parseMap(DefaultJSONParser parser, Map<Object, Object> map, Type keyType, Type valueType,
                                  Object fieldName) {
        JSONLexer lexer = parser.getLexer();

        if (lexer.token() != JSONToken.LBRACE && lexer.token() != JSONToken.COMMA) {
            throw new JSONException("syntax error, expect {, actual " + lexer.tokenName());
        }

        ObjectDeserializer keyDeserializer = parser.getConfig().getDeserializer(keyType);
        ObjectDeserializer valueDeserializer = parser.getConfig().getDeserializer(valueType);
        lexer.nextToken(keyDeserializer.getFastMatchToken());

        ParseContext context = parser.getContext();
        try {
            for (;;) {
                if (lexer.token() == JSONToken.RBRACE) {
                    lexer.nextToken(JSONToken.COMMA);
                    break;
                }

                if (lexer.token() == JSONToken.LITERAL_STRING && lexer.isRef()) {
                    Object object = null;

                    lexer.nextTokenWithColon(JSONToken.LITERAL_STRING);
                    if (lexer.token() == JSONToken.LITERAL_STRING) {
                        String ref = lexer.stringVal();
                        if ("..".equals(ref)) {
                            ParseContext parentContext = context.getParentContext();
                            object = parentContext.getObject();
                        } else if ("$".equals(ref)) {
                            ParseContext rootContext = context;
                            while (rootContext.getParentContext() != null) {
                                rootContext = rootContext.getParentContext();
                            }

                            object = rootContext.getObject();
                        } else {
                            parser.addResolveTask(new ResolveTask(context, ref));
                            parser.setResolveStatus(DefaultJSONParser.NeedToResolve);
                        }
                    } else {
                        throw new JSONException("illegal ref, " + JSONToken.name(lexer.token()));
                    }

                    lexer.nextToken(JSONToken.RBRACE);
                    if (lexer.token() != JSONToken.RBRACE) {
                        throw new JSONException("illegal ref");
                    }
                    lexer.nextToken(JSONToken.COMMA);

                    // parser.setContext(context, map, fieldName);
                    // parser.setContext(context);

                    return object;
                }

                if (map.size() == 0 //
                    && lexer.token() == JSONToken.LITERAL_STRING //
                    && JSON.DEFAULT_TYPE_KEY.equals(lexer.stringVal())) {
                    lexer.nextTokenWithColon(JSONToken.LITERAL_STRING);
                    lexer.nextToken(JSONToken.COMMA);
                    if (lexer.token() == JSONToken.RBRACE) {
                        lexer.nextToken();
                        return map;
                    }
                    lexer.nextToken(keyDeserializer.getFastMatchToken());
                }

                Object key = keyDeserializer.deserialze(parser, keyType, null);

                if (lexer.token() != JSONToken.COLON) {
                    throw new JSONException("syntax error, expect :, actual " + lexer.token());
                }

                lexer.nextToken(valueDeserializer.getFastMatchToken());

                Object value = valueDeserializer.deserialze(parser, valueType, key);

                map.put(key, value);

                if (lexer.token() == JSONToken.COMMA) {
                    lexer.nextToken(keyDeserializer.getFastMatchToken());
                }
            }
        } finally {
            parser.setContext(context);
        }
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    public final static StackTraceElementDeserializer instance = new StackTraceElementDeserializer();

    @SuppressWarnings("unchecked")
    public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
        JSONLexer lexer = parser.getLexer();
        if (lexer.token() == JSONToken.NULL) {
            lexer.nextToken();
            return null;
        }

        if (lexer.token() != JSONToken.LBRACE && lexer.token() != JSONToken.COMMA) {
            throw new JSONException("syntax error: " + JSONToken.name(lexer.token()));
        }

        String declaringClass = null;
        String methodName = null;
        String fileName = null;
        int lineNumber = 0;

        for (;;) {
            // lexer.scanSymbol
            String key = lexer.scanSymbol(parser.getSymbolTable());

            if (key == null) {
                if (lexer.token() == JSONToken.RBRACE) {
                    lexer.nextToken(JSONToken.COMMA);
                    break;
                }
                if (lexer.token() == JSONToken.COMMA) {
                    if (lexer.isEnabled(Feature.AllowArbitraryCommas)) {
                        continue;
                    }
                }
            }

            lexer.nextTokenWithColon(JSONToken.LITERAL_STRING);
            if ("className".equals(key)) {
                if (lexer.token() == JSONToken.NULL) {
                    declaringClass = null;
                } else if (lexer.token() == JSONToken.LITERAL_STRING) {
                    declaringClass = lexer.stringVal();
                } else {
                    throw new JSONException("syntax error");
                }
            } else if ("methodName".equals(key)) {
                if (lexer.token() == JSONToken.NULL) {
                    methodName = null;
                } else if (lexer.token() == JSONToken.LITERAL_STRING) {
                    methodName = lexer.stringVal();
                } else {
                    throw new JSONException("syntax error");
                }
            } else if ("fileName".equals(key)) {
                if (lexer.token() == JSONToken.NULL) {
                    fileName = null;
                } else if (lexer.token() == JSONToken.LITERAL_STRING) {
                    fileName = lexer.stringVal();
                } else {
                    throw new JSONException("syntax error");
                }
            } else if ("lineNumber".equals(key)) {
                if (lexer.token() == JSONToken.NULL) {
                    lineNumber = 0;
                } else if (lexer.token() == JSONToken.LITERAL_INT) {
                    lineNumber = lexer.intValue();
                } else {
                    throw new JSONException("syntax error");
                }
            } else if ("nativeMethod".equals(key)) {
                if (lexer.token() == JSONToken.NULL) {
                    lexer.nextToken(JSONToken.COMMA);
                } else if (lexer.token() == JSONToken.TRUE) {
                    lexer.nextToken(JSONToken.COMMA);
                } else if (lexer.token() == JSONToken.FALSE) {
                    lexer.nextToken(JSONToken.COMMA);
                } else {
                    throw new JSONException("syntax error");
                }
            } else if (key == JSON.DEFAULT_TYPE_KEY) {
               if (lexer.token() == JSONToken.LITERAL_STRING) {
                    String elementType = lexer.stringVal();
                    if (!elementType.equals("java.lang.StackTraceElement")) {
                        throw new JSONException("syntax error : " + elementType);   
                    }
                } else {
                    if (lexer.token() != JSONToken.NULL) {
                        throw new JSONException("syntax error");
                    }
                }
            } else {
                throw new JSONException("syntax error : " + key);
            }

            if (lexer.token() == JSONToken.RBRACE) {
                lexer.nextToken(JSONToken.COMMA);
                break;
            }
        }
        return (T) new StackTraceElement(declaringClass, methodName, fileName, lineNumber);
    }
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        return (T) deserialze(parser);
    }

    @SuppressWarnings("unchecked")
    public static <T> T deserialze(DefaultJSONParser parser) {
        final JSONLexer lexer = parser.getLexer();
        if (lexer.token() == JSONToken.LITERAL_INT) {
            String val = lexer.numberString();
            lexer.nextToken(JSONToken.COMMA);
            return (T) new BigInteger(val);
        }

        Object value = parser.parse();
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    }

    @SuppressWarnings("unchecked")
    public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
        JSONLexer lexer = parser.getLexer();
       
        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();

        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 (T) new Font(name, style, size);
    }
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        }
    }

    @SuppressWarnings("unchecked")
    public <T> T deserialze(DefaultJSONParser parser, Type clazz, Object fieldName) {
        final JSONLexer lexer = parser.getLexer();

        Boolean boolObj;
        if (lexer.token() == JSONToken.TRUE) {
            lexer.nextToken(JSONToken.COMMA);
            boolObj = Boolean.TRUE;
        } else if (lexer.token() == JSONToken.FALSE) {
            lexer.nextToken(JSONToken.COMMA);
            boolObj = Boolean.FALSE;
        } else if (lexer.token() == JSONToken.LITERAL_INT) {
            int intValue = lexer.intValue();
            lexer.nextToken(JSONToken.COMMA);

            if (intValue == 1) {
                boolObj = Boolean.TRUE;
            } else {
                boolObj = Boolean.FALSE;
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    }

    @SuppressWarnings("unchecked")
    public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
        JSONLexer lexer = parser.getLexer();
       
        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();

        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;
                }
               
                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 : " + 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 (T) new Point(x, y);
    }
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        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);
    }
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        out.write('}');
    }
   
    @SuppressWarnings("unchecked")
    public <T> T deserialze(DefaultJSONParser parser, Type clazz, Object fieldName) {
        JSONLexer lexer = parser.getLexer();

        if (lexer.token() == JSONToken.NULL) {
            lexer.nextToken();
            return null;
        }

        parser.accept(JSONToken.LBRACE);

        InetAddress address = null;
        int port = 0;
        for (;;) {
            String key = lexer.stringVal();
            lexer.nextToken(JSONToken.COLON);
          

            if (key.equals("address")) {
                parser.accept(JSONToken.COLON);
                address = parser.parseObject(InetAddress.class);
            } else if (key.equals("port")) {
                parser.accept(JSONToken.COLON);
                if (lexer.token() != JSONToken.LITERAL_INT) {
                    throw new JSONException("port is not int");
                }
                port = lexer.intValue();
                lexer.nextToken();
            } else {
                parser.accept(JSONToken.COLON);
                parser.parse();
            }

            if (lexer.token() == JSONToken.COMMA) {
                lexer.nextToken();
                continue;
            }

            break;
        }
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