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error handling in dbExtractor

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Joe
2019-01-31 08:32:12 -06:00
parent b0d5fca2a4
commit bce3458160
1 changed files with 46 additions and 42 deletions
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86
DBExtractor/DBExtractor.js
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@@ -58,51 +58,55 @@ try {
} }
} }
sql.connect(config.sqlConfig, err => { try {
if (err) { sql.connect(config.sqlConfig, err => {
logger.log("error", "Connecting to DB: " + err); if (err) {
} logger.log("error", "Connecting to DB: " + err);
const sqlRequest = new sql.Request(); }
sqlRequest.stream = true; const sqlRequest = new sql.Request();
sqlRequest.stream = true;
function runNextPoll(){ function runNextPoll(){
sqlRequest.query("select top " + maxResultsPerMessage + " * from rpslog where pkey > '" + maxPKey + "' order by pkey"); sqlRequest.query("select top " + maxResultsPerMessage + " * from rpslog where pkey > '" + maxPKey + "' order by pkey");
} }
runNextPoll(); runNextPoll();
sqlRequest.on('row', row => { sqlRequest.on('row', row => {
outData = { sourceTag: config.sourceTag, processingType: config.processingType, data: row }; outData = { sourceTag: config.sourceTag, processingType: config.processingType, data: row };
process.stdout.write("#"); process.stdout.write("#");
request.json = true; request.json = true;
logger.log('debug', "adding row to array:" + JSON.stringify(outData)); logger.log('debug', "adding row to array:" + JSON.stringify(outData));
allRows.push(outData); allRows.push(outData);
if (row.PKey > maxPKeyUnsent) { if (row.PKey > maxPKeyUnsent) {
maxPKeyUnsent = row.PKey; maxPKeyUnsent = row.PKey;
logger.log("debug", "MaxPKeyUnsent Written: " + maxPKeyUnsent); logger.log("debug", "MaxPKeyUnsent Written: " + maxPKeyUnsent);
} }
}); });
sqlRequest.on('done', result => { sqlRequest.on('done', result => {
clearInterval(theInterval); clearInterval(theInterval);
if (allRows.length>0){ if (allRows.length>0){
request({ method: 'POST', uri: config.serverURI, body: JSON.stringify(allRows), json: true }).then(_ => { request({ method: 'POST', uri: config.serverURI, body: JSON.stringify(allRows), json: true }).then(_ => {
// count up the maxPKey only when the request was successful... // count up the maxPKey only when the request was successful...
maxPKey=maxPKeyUnsent; maxPKey=maxPKeyUnsent;
fs.writeFileSync("DBExtractor.maxPKey.dat", maxPKey); fs.writeFileSync("DBExtractor.maxPKey.dat", maxPKey);
}).catch(err=>{ }).catch(err=>{
logger.log("error","Sending Request to Service: " + err) logger.log("error","Sending Request to Service: " + err)
}).finally(_=>{ }).finally(_=>{
runNextPoll(); runNextPoll();
}); });
process.stdout.write(">" + allRows.length + ">"); process.stdout.write(">" + allRows.length + ">");
} else { } else {
theInterval = setInterval(runNextPoll, config.pollIntervalIdle); theInterval = setInterval(runNextPoll, config.pollIntervalIdle);
process.stdout.write("."); process.stdout.write(".");
} }
allRows=[]; allRows=[];
}); });
}) })
} catch (ex) {
logger.log("error", `Fatal error occured: ${ex}`);
}