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

Example 1 with JSONScanner

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

the class TypeUtils method castToLong.

public static Long castToLong(Object value) {
    if (value == null) {
        return null;
    }
    if (value instanceof Number) {
        return ((Number) value).longValue();
    }
    if (value instanceof String) {
        String strVal = (String) value;
        if (//
        strVal.length() == 0 || //
        "null".equals(strVal) || "NULL".equals(strVal)) {
            return null;
        }
        if (strVal.indexOf(',') != 0) {
            strVal = strVal.replaceAll(",", "");
        }
        try {
            return Long.parseLong(strVal);
        } catch (NumberFormatException ex) {
        //
        }
        JSONScanner dateParser = new JSONScanner(strVal);
        Calendar calendar = null;
        if (dateParser.scanISO8601DateIfMatch(false)) {
            calendar = dateParser.getCalendar();
        }
        dateParser.close();
        if (calendar != null) {
            return calendar.getTimeInMillis();
        }
    }
    throw new JSONException("can not cast to long, value : " + value);
}

Example 2 with JSONScanner

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

the class LexerTest method test_string.

public void test_string() throws Exception {
    {
        JSONScanner lexer = new JSONScanner("\"中国\"");
        lexer.nextToken();
        Assert.assertEquals("中国", lexer.stringVal());
    }
    {
        JSONScanner lexer = new JSONScanner("\"中国\t\"");
        lexer.nextToken();
        Assert.assertEquals("中国\t", lexer.stringVal());
    }
    {
        JSONScanner lexer = new JSONScanner("\"中国\tV5\"");
        lexer.nextToken();
        Assert.assertEquals("中国\tV5", lexer.stringVal());
    }
    StringBuilder buf = new StringBuilder();
    buf.append('"');
    buf.append("\\\\\\/\\b\\f\\n\\r\\t\\u" + Integer.toHexString('中'));
    buf.append('"');
    buf.append(' ');
    String text = buf.toString();
    JSONScanner lexer = new JSONScanner(text.toCharArray(), text.length() - 1);
    lexer.nextToken();
    Assert.assertEquals(0, lexer.pos());
    String stringVal = lexer.stringVal();
    Assert.assertEquals("\"\\\\/\\b\\f\\n\\r\\t中\"", JSON.toJSONString(stringVal));
}

Example 3 with JSONScanner

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

the class LexerTest method test_error1.

public void test_error1() throws Exception {
    Exception error = null;
    try {
        JSONScanner lexer = new JSONScanner("\"\\k\"");
        lexer.nextToken();
    } catch (Exception ex) {
        error = ex;
    }
    Assert.assertNotNull(error);
}

Example 4 with JSONScanner

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

the class LexerTest method test_error3.

public void test_error3() {
    Exception error = null;
    try {
        JSONScanner lexer = new JSONScanner("");
        lexer.nextToken();
        lexer.nextToken();
        lexer.integerValue();
    } catch (Exception ex) {
        error = ex;
    }
    Assert.assertNotNull(error);
}

Example 5 with JSONScanner

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

the class LexerTest method test_big_integer_3.

public void test_big_integer_3() throws Exception {
    String text = "9223372036854775809";
    JSONScanner lexer = new JSONScanner(text);
    lexer.nextToken();
    Assert.assertEquals(new BigInteger(text), lexer.integerValue());
}