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90 lines
3.1 KiB
TypeScript
90 lines
3.1 KiB
TypeScript
// Loaded from https://raw.githubusercontent.com/denjucks/dex/master/lib/dialects/oracle/utils.js
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export function generateCombinedName(logger, postfix, name, subNames) {
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const crypto = require('crypto');
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const limit = 30;
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if (!Array.isArray(subNames)) subNames = subNames ? [subNames] : [];
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const table = name.replace(/\.|-/g, '_');
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const subNamesPart = subNames.join('_');
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let result = `${table}_${
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subNamesPart.length ? subNamesPart + '_' : ''
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}${postfix}`.toLowerCase();
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if (result.length > limit) {
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logger.warn(
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`Automatically generated name "${result}" exceeds ${limit} character ` +
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`limit for Oracle. Using base64 encoded sha1 of that name instead.`
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);
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// generates the sha1 of the name and encode it with base64
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result = crypto
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.createHash('sha1')
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.update(result)
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.digest('base64')
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.replace('=', '');
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}
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return result;
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}
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export function wrapSqlWithCatch(sql, errorNumberToCatch) {
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return (
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`begin execute immediate '${sql.replace(/'/g, "''")}'; ` +
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`exception when others then if sqlcode != ${errorNumberToCatch} then raise; ` +
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`end if; ` +
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`end;`
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);
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}
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export function ReturningHelper(columnName) {
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this.columnName = columnName;
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}
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ReturningHelper.prototype.toString = function () {
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return `[object ReturningHelper:${this.columnName}]`;
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};
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// If the error is any of these, we'll assume we need to
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// mark the connection as failed
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export function isConnectionError(err) {
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return [
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'ORA-03114', // not connected to ORACLE
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'ORA-03113', // end-of-file on communication channel
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'ORA-03135', // connection lost contact
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'ORA-12514', // listener does not currently know of service requested in connect descriptor
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'ORA-00022', // invalid session ID; access denied
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'ORA-00028', // your session has been killed
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'ORA-00031', // your session has been marked for kill
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'ORA-00045', // your session has been terminated with no replay
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'ORA-00378', // buffer pools cannot be created as specified
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'ORA-00602', // internal programming exception
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'ORA-00603', // ORACLE server session terminated by fatal error
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'ORA-00609', // could not attach to incoming connection
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'ORA-01012', // not logged on
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'ORA-01041', // internal error. hostdef extension doesn't exist
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'ORA-01043', // user side memory corruption
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'ORA-01089', // immediate shutdown or close in progress
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'ORA-01092', // ORACLE instance terminated. Disconnection forced
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'ORA-02396', // exceeded maximum idle time, please connect again
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'ORA-03122', // attempt to close ORACLE-side window on user side
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'ORA-12153', // TNS'not connected
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'ORA-12537', // TNS'connection closed
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'ORA-12547', // TNS'lost contact
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'ORA-12570', // TNS'packet reader failure
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'ORA-12583', // TNS'no reader
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'ORA-27146', // post/wait initialization failed
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'ORA-28511', // lost RPC connection
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'ORA-56600', // an illegal OCI function call was issued
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'NJS-040',
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'NJS-024',
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'NJS-003',
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].some(function (prefix) {
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return err.message.indexOf(prefix) === 0;
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});
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}
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export default {
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generateCombinedName,
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isConnectionError,
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wrapSqlWithCatch,
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ReturningHelper,
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};
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