@sap/xsodata/lib/utils/typeConverters/dbToXml.js

Expose data from a HANA database as OData V2 service with help of .xsodata files.

'use strict';

const dbToXml = (exports.dbToXml = {});
const converterTools = require('./converterTools');
const XsODataTypeError = require('./../errors/typeError');

dbToXml.DATE = dbToXml.DAYDATE = function dbToXmlDATE(dbValue) {
    /*in 9999-12-31*/
    /*out Edm.DateTime~~> 1957-06-13T00:00:00.0000000 */
    if (dbValue === null) {
        return null;
    }
    return (
        dbValue.substr(0, 4) +
        '-' +
        dbValue.substr(5, 2) +
        '-' +
        dbValue.substr(8, 2) +
        'T' +
        '00:00:00.0000000'
    );
};

dbToXml.TIME = dbToXml.SECONDTIME = function dbToXmlTIME(dbValue) {
    /*in "23:59:59"*/
    /*out Edm.Time ~~> "PT23H59M59S" */
    if (dbValue === null) {
        return null;
    }
    return (
        'PT' +
        parseInt(dbValue.substr(0, 2)) +
        'H' +
        parseInt(dbValue.substr(3, 2)) +
        'M' +
        parseInt(dbValue.substr(6, 2)) +
        'S'
    );
};

dbToXml.SECONDDATE = function dbToXmlSECONDDATE(dbValue) {
    /*in 9999-12-31T23:59:59*/
    /*out Edm.DateTime~~> 9999-12-31T23:59:59.0000000 */
    if (dbValue === null) {
        return null;
    }
    return converterTools.datetime7(dbValue, true);
};
dbToXml.TIMESTAMP = function dbToXmlTIMESTAMP(dbValue) {
    /*in 2011-05-11T12:00:59.999*/
    /*out Edm.DateTime~~> 9999-12-31T23:59:59.9990000 */
    if (dbValue === null) {
        return null;
    }
    return converterTools.datetime7(dbValue, true);
};

dbToXml.TINYINT = function dbToXmlTINYINT(dbValue) {
    /*in 0*/
    /*out Edm.Byte~~> 0 */
    return dbValue;
};
dbToXml.SMALLINT = function dbToXmlSMALLINT(dbValue) {
    /*in -32768*/
    /*out Edm.Int16~~> -32768 */
    return dbValue;
};
dbToXml.INTEGER = function dbToXmlINTEGER(dbValue) {
    /*in -2147483647*/
    /*out Edm.Int32~~> -2147483647 */
    return dbValue;
};
dbToXml.BIGINT = function dbToXmlBIGINT(dbValue) {
    /*in 9223372036854775807*/
    /*out Edm.Int64~~> 9223372036854775808l <it an small L at the end */
    return dbValue;
};
dbToXml.SMALLDECIMAL = function dbToXmlSMALLDECIMAL(dbValue) {
    /*in 1.2e+1*/
    /*out Edm.Decimal~~> 12*/
    /*SAPINFO xsodata<->xs1: type convertion db to uri: SMALLDECIMAL/Edm.Single is not trunctated*/
    return dbValue;
};
dbToXml.DECIMAL = function dbToXmlDECIMAL(dbValue) {
    /*in -1.234567890132456789013245678901234e+33*/
    /*out Edm.Decimal~~> -1234567890132456789013245678901234*/
    /*SAPINFO xsodata<->xs1: type convertion db to uri: SMALLDECIMAL/Edm.Single is not trunctated*/
    if (dbValue === null) {
        return null;
    }
    return converterTools.decimal_db_to_uri(dbValue);
};
dbToXml.REAL = function dbToXmlREAL(dbValue) {
    /*in -3.4028230607370965e+38*/
    /*out Edm.Single~~> -3.4028230607370965e+38*/
    return dbValue;
};
dbToXml.DOUBLE = function dbToXmlDOUBLE(dbValue) {
    /*in 1.7976931348623157e+308*/
    /*out Edm.Single~~> -3.4028230607370965e+38*/
    return dbValue;
};
dbToXml.FLOAT = function dbToXmlFLOAT(dbValue) {
    /*in -3.4028230607370965e+38*/
    /*out Edm.Single~~> -3.4028230607370965e+38*/
    return dbValue;
};

dbToXml.VARCHAR = function dbToXmlVARCHAR(dbValue) {
    /*in "A VARCHAR"*/
    /*out Edm.String~~> "A VARCHAR"*/
    return dbValue;
};
dbToXml.NVARCHAR = function dbToXmlNVARCHAR(dbValue) {
    /*in "A NVARCHAR"*/
    /*out Edm.String~~> "A NVARCHAR"*/
    return dbValue;
};

dbToXml.ALPHANUM = function dbToXmlALPHANUM(dbValue) {
    /*in "A VARCHAR"*/
    /*out Edm.String~~> "A VARCHAR"*/
    return dbValue;
};

dbToXml.SHORTTEXT = function dbToXmlSHORTTEXT(dbValue) {
    /*in "A VARCHAR"*/
    /*out Edm.String~~> "A VARCHAR"*/
    return dbValue;
};

dbToXml.CHAR = function dbToXmlCHAR(dbValue) {
    /*in "A VARCHAR"*/
    /*out Edm.String~~> "A VARCHAR"*/
    return dbValue;
};
dbToXml.NCHAR = function dbToXmlNCHAR(dbValue) {
    /*in "A NVARCHAR"*/
    /*out Edm.String~~> "A NVARCHAR"*/
    return dbValue;
};

dbToXml.BLOB = function dbToXmlBLOB(dbValue) {
    if (dbValue === null) {
        return null;
    }
    return dbValue.toString('base64');
};

dbToXml.CLOB = function dbToXmlCLOB(dbValue) {
    //TODO atom format not supported yet
    //const decoder = new StringDecoder('utf8');
    //const c = decoder.write(dbValue);
    //return "'" + c + "'";
    if (dbValue === null) {
        return null;
    }
    return dbValue.toString('utf8');
};
dbToXml.NCLOB = function dbToXmlNCLOB(dbValue) {
    //TODO atom format not supported yet
    //const decoder = new StringDecoder('utf8');
    //const c = decoder.write(dbValue);
    //return "'" + c + "'";
    if (dbValue === null) {
        return null;
    }
    return dbValue.toString('utf8');
};

dbToXml.BINARY = function dbToXmlBINARY(/*dbValue*/) {
    throw new XsODataTypeError('db type BINARY is not supported');
};
dbToXml.VARBINARY = function dbToXmlVARBINARY(dbValue) {
    //TODO atom format not supported yet
    /* in Buffer object*/
    if (dbValue === null) {
        return null;
    }
    return dbValue.toString('base64');
};

dbToXml.LONGDATE = function dbToUriLONGDATE(/*dbValue*/) {
    throw new XsODataTypeError('db type LONGDATE is not supported');
};