180 lines
4.8 KiB
JavaScript
180 lines
4.8 KiB
JavaScript
/* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. */
|
|
|
|
/******************************************************************************
|
|
*
|
|
* You may not use the identified files except in compliance with the Apache
|
|
* License, Version 2.0 (the "License.")
|
|
*
|
|
* You may obtain a copy of the License at
|
|
* http://www.apache.org/licenses/LICENSE-2.0.
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
*
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* The node-oracledb test suite uses 'mocha', 'should' and 'async'.
|
|
* See LICENSE.md for relevant licenses.
|
|
*
|
|
* NAME
|
|
* 59. lobResultSet.js
|
|
*
|
|
* DESCRIPTION
|
|
*
|
|
* Inspired by https://github.com/oracle/node-oracledb/issues/210
|
|
* Testing Lob data and result set.
|
|
* Create a table contains Lob data. Read the Lob to result set. Get
|
|
* rows one by one. Read the lob data on each row.
|
|
*
|
|
* NUMBERING RULE
|
|
* Test numbers follow this numbering rule:
|
|
* 1 - 20 are reserved for basic functional tests
|
|
* 21 - 50 are reserved for data type supporting tests
|
|
* 51 onwards are for other tests
|
|
*
|
|
*****************************************************************************/
|
|
'use strict';
|
|
|
|
var oracledb = require('oracledb');
|
|
var fs = require('fs');
|
|
var async = require('async');
|
|
var should = require('should');
|
|
var stream = require('stream');
|
|
var dbConfig = require('./dbconfig.js');
|
|
var assist = require('./dataTypeAssist.js');
|
|
|
|
var inFileName = './test/clobexample.txt';
|
|
|
|
describe('59. lobResultSet.js', function() {
|
|
|
|
var connection = null;
|
|
before('get one connection', function(done) {
|
|
oracledb.getConnection(
|
|
{
|
|
user: dbConfig.user,
|
|
password: dbConfig.password,
|
|
connectString: dbConfig.connectString
|
|
},
|
|
function(err, conn) {
|
|
should.not.exist(err);
|
|
connection = conn;
|
|
done();
|
|
}
|
|
);
|
|
})
|
|
|
|
after('release connection', function(done) {
|
|
connection.release( function(err) {
|
|
should.not.exist(err);
|
|
done();
|
|
});
|
|
})
|
|
|
|
describe('59.1 CLOB data', function() {
|
|
|
|
var tableName = "nodb_myclobs";
|
|
before('create table', function(done) {
|
|
assist.createTable(connection, tableName, done);
|
|
})
|
|
|
|
after(function(done) {
|
|
connection.execute(
|
|
"DROP table " + tableName,
|
|
function(err) {
|
|
should.not.exist(err);
|
|
done();
|
|
}
|
|
);
|
|
})
|
|
|
|
it('59.1.1 reads clob data one by one row from result set', function(done) {
|
|
async.series([
|
|
function(callback) {
|
|
insertClob(1, callback);
|
|
},
|
|
function(callback) {
|
|
insertClob(2, callback);
|
|
},
|
|
function(callback) {
|
|
insertClob(3, callback);
|
|
},
|
|
function(callback) {
|
|
connection.execute(
|
|
"SELECT num, content FROM " + tableName,
|
|
[],
|
|
{ resultSet: true },
|
|
function(err, result) {
|
|
should.not.exist(err);
|
|
// console.log(result);
|
|
fetchOneRowFromRS(result.resultSet, callback);
|
|
}
|
|
);
|
|
}
|
|
], done);
|
|
})
|
|
|
|
function fetchOneRowFromRS(resultSet, callback)
|
|
{
|
|
resultSet.getRow( function(err, row) {
|
|
should.not.exist(err);
|
|
if (!row) {
|
|
resultSet.close( function(err) {
|
|
should.not.exist(err);
|
|
callback();
|
|
});
|
|
}
|
|
else {
|
|
var lob = row[1];
|
|
lob.setEncoding('utf8');
|
|
|
|
var text = '';
|
|
lob.on('data', function(chunk) {
|
|
text += chunk;
|
|
});
|
|
|
|
lob.on('end', function() {
|
|
fetchOneRowFromRS(resultSet, callback);
|
|
});
|
|
|
|
lob.on('error', function(err) {
|
|
console.log("lob.on 'error' event");
|
|
console.error(err.message);
|
|
});
|
|
}
|
|
|
|
});
|
|
}
|
|
|
|
function insertClob(id, cb)
|
|
{
|
|
connection.execute(
|
|
"INSERT INTO " + tableName + " VALUES (:n, EMPTY_CLOB()) RETURNING content INTO :lobbv",
|
|
{ n: id, lobbv: { type: oracledb.CLOB, dir: oracledb.BIND_OUT } },
|
|
function(err, result) {
|
|
should.not.exist(err);
|
|
var lob = result.outBinds.lobbv[0];
|
|
var inStream = fs.createReadStream(inFileName);
|
|
|
|
inStream.pipe(lob);
|
|
|
|
inStream.on('end', function() {
|
|
connection.commit( function(err) {
|
|
should.not.exist(err);
|
|
cb(); // insertion done
|
|
});
|
|
});
|
|
|
|
inStream.on('error', function(err) {
|
|
should.not.exist(err);
|
|
});
|
|
|
|
}
|
|
);
|
|
}
|
|
|
|
}) // 59.1
|
|
|
|
}) // 59
|