Example usage for java.sql JDBCType DOUBLE

Introduction

In this page you can find the example usage for java.sql JDBCType DOUBLE.

Prototype

JDBCType DOUBLE

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Document

Identifies the generic SQL type DOUBLE .

Usage

From source file:com.thinkbiganalytics.discovery.util.ParserHelperTest.java

@Test

public void testSqlTypeToHiveType() throws Exception {
    assertEquals(ParserHelper.sqlTypeToHiveType(JDBCType.DOUBLE), "double");
}

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From source file:com.thinkbiganalytics.discovery.util.ParserHelper.java

/**
 * Derive the corresponding data type from sample values
 *
 * @param values a list of string values
 * @return the JDBC data type//from w  w w. j a  va2  s . c o m
 */
public static JDBCType deriveJDBCDataType(List<String> values) {

    JDBCType guess = null;
    if (values != null) {
        for (String v : values) {
            if (!StringUtils.isEmpty(v)) {
                JDBCType currentPass;
                try {
                    Integer.parseInt(v);
                    currentPass = JDBCType.INTEGER;
                } catch (NumberFormatException e) {
                    try {
                        Double.parseDouble(v);
                        currentPass = JDBCType.DOUBLE;
                    } catch (NumberFormatException ex) {
                        // return immediately for non-numeric case
                        return JDBCType.VARCHAR;
                    }
                }
                // If a double is encountered, use that type
                if (guess == null || currentPass == JDBCType.DOUBLE) {
                    guess = currentPass;
                }
            }
        }
    }
    return (guess == null ? JDBCType.VARCHAR : guess);
}

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From source file:org.elasticsearch.xpack.qa.sql.rest.RestSqlTestCase.java

public void testNextPage() throws IOException {
    Request request = new Request("POST", "/test/test/_bulk");
    request.addParameter("refresh", "true");
    String mode = randomMode();/*from  ww  w  .  ja  va 2  s .c  o m*/
    StringBuilder bulk = new StringBuilder();
    for (int i = 0; i < 20; i++) {
        bulk.append("{\"index\":{\"_id\":\"" + i + "\"}}\n");
        bulk.append("{\"text\":\"text" + i + "\", \"number\":" + i + "}\n");
    }
    request.setJsonEntity(bulk.toString());
    client().performRequest(request);

    String sqlRequest = "{\"query\":\"" + "   SELECT text, number, SQRT(number) AS s, SCORE()"
            + "     FROM test" + " ORDER BY number, SCORE()\", " + "\"mode\":\"" + mode + "\", "
            + "\"fetch_size\":2}";

    String cursor = null;
    for (int i = 0; i < 20; i += 2) {
        Map<String, Object> response;
        if (i == 0) {
            response = runSql(mode, new StringEntity(sqlRequest, ContentType.APPLICATION_JSON));
        } else {
            response = runSql(mode,
                    new StringEntity("{\"cursor\":\"" + cursor + "\"}", ContentType.APPLICATION_JSON));
        }

        Map<String, Object> expected = new HashMap<>();
        if (i == 0) {
            expected.put("columns",
                    Arrays.asList(columnInfo(mode, "text", "text", JDBCType.VARCHAR, 0),
                            columnInfo(mode, "number", "long", JDBCType.BIGINT, 20),
                            columnInfo(mode, "s", "double", JDBCType.DOUBLE, 25),
                            columnInfo(mode, "SCORE()", "float", JDBCType.REAL, 15)));
        }
        expected.put("rows", Arrays.asList(Arrays.asList("text" + i, i, Math.sqrt(i), 1.0),
                Arrays.asList("text" + (i + 1), i + 1, Math.sqrt(i + 1), 1.0)));
        cursor = (String) response.remove("cursor");
        assertResponse(expected, response);
        assertNotNull(cursor);
    }
    Map<String, Object> expected = new HashMap<>();
    expected.put("rows", emptyList());
    assertResponse(expected,
            runSql(mode, new StringEntity("{ \"cursor\":\"" + cursor + "\"}", ContentType.APPLICATION_JSON)));
}

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