I have a website in asp.net 2.0 which write some thing on a file. But at the same time if another user hit that site it does not work till the first one operation on the file completed after that second one can do operation with the files.
How to handle such situation.
AppConfiguration appConfiguration = new AppConfiguration();
string LogFile =String.Empty;
string sLogFormat =string.Empty;
string sErrorTime =string.Empty;
StreamWriter sw=null;
public LogManager()
{
if(!File.Exists(AppConfiguration.LogFilePath))
{
Directory.CreateDirectory(AppConfiguration.LogFilePath);
}
LogFile = AppConfiguration.LogFilePath+"WAP"+sErrorTime + ".log";
if(!File.Exists(LogFile))
{
File.Create(LogFile);
}
}
public void closeStream()
{
if(sw != null)
{
sw.Close();
}
}
public void LogException(string className,string methodName, string errorMessage)
{
try
{
if(!File.Exists(LogFile))
{
File.Create(LogFile);
}
sw = new StreamWriter(LogFile,true);
sw.WriteLine(DateTime.Now.ToString() + " | " + className + ":" + methodName + ":"+ errorMessage);
sw.Flush();
sw.Close();
}
catch(Exception)
{
if(sw != null)
{
sw.Close();
}
}
}
Rather than opening and closing the log file for every entry, you might consider having a single logging process (e.g. syslog or a separate logging thread) that keeps the log file open.
Writing lines to a plain text file will mess it up if multiple users are going to handle it. Rather, you can use database to store / retrieve text. You can even provide a button somewhere to export the records to a plain text file if needed.
Related
With OpenCSV, how do I append to existing CSV using a MappingStrategy? There are lots of examples I could find where NOT using a Bean mapping stategy BUT I like the dynamic nature of the column mapping with bean strategy and would like to get it working this way. Here is my code, which just rewrites the single line to CSV file instead of appending.
How can I fix this? Using OpenCSV 4.5 . Note: I set my FileWriter for append=true . This scenario is not working as I expected. Re-running this method simply results in over-writing the entire file with a header and a single row.
public void addRowToCSV(PerfMetric rowData) {
File file = new File(PerfTestMetric.CSV_FILE_PATH);
try {
CSVWriter writer = new CSVWriter(new FileWriter(file, true));
CustomCSVMappingStrategy<PerfMetric> mappingStrategy
= new CustomCSVMappingStrategy<>();
mappingStrategy.setType(PerfMetric.class);
StatefulBeanToCsv<PerfMetric> beanToCsv
= new StatefulBeanToCsvBuilder<PerfMetric>(writer)
.withMappingStrategy(mappingStrategy)
.withSeparator(',')
.withApplyQuotesToAll(false)
.build();
try {
beanToCsv.write(rowData);
} catch (CsvDataTypeMismatchException e) {
e.printStackTrace();
} catch (CsvRequiredFieldEmptyException e) {
e.printStackTrace();
}
writer.flush();
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
Or, is the usual pattern to load all rows into a List and then re-write entire file? I was able to get it to work by writing two MappingStrategy mapping strategies and then conditionally using them with a if-file-exists but doing it that way leaves me with a "Unchecked assignment" warning in my code. Not ideal; hoping for an elegant solution?
I've updated OpenCSV to version 5.1 and got it working. In my case I needed the CSV headers to have a specific name and position, so I'm using both #CsvBindByName and #CsvBindByPosition, and needed to create a custom MappingStrategy to get it working.
Later, I needed to edit the MappingStrategy to enable appending, so when it's in Appending mode I don't need to generate a CSV header.
public class CustomMappingStrategy<T> extends ColumnPositionMappingStrategy<T> {
private boolean useHeader=true;
public CustomMappingStrategy(){
}
public CustomMappingStrategy(boolean useHeader) {
this.useHeader = useHeader;
}
#Override
public String[] generateHeader(T bean) throws CsvRequiredFieldEmptyException {
final int numColumns = FieldUtils.getAllFields(bean.getClass()).length;
super.setColumnMapping(new String[numColumns]);
if (numColumns == -1) {
return super.generateHeader(bean);
}
String[] header = new String[numColumns];
if(!useHeader){
return ArrayUtils.EMPTY_STRING_ARRAY;
}
BeanField<T, Integer> beanField;
for (int i = 0; i < numColumns; i++){
beanField = findField(i);
String columnHeaderName = extractHeaderName(beanField);
header[i] = columnHeaderName;
}
return header;
}
private String extractHeaderName(final BeanField<T, Integer> beanField){
if (beanField == null || beanField.getField() == null || beanField.getField().getDeclaredAnnotationsByType(CsvBindByName.class).length == 0){
return StringUtils.EMPTY;
}
//return value of CsvBindByName annotation
final CsvBindByName bindByNameAnnotation = beanField.getField().getDeclaredAnnotationsByType(CsvBindByName.class)[0];
return bindByNameAnnotation.column();
}
}
Now if you use the default constructor it'll add the header to the generated CSV, and using a boolean you can tell it to add a header or to ignore it.
I never found an answer to this question and so what I ended up doing was doing a branch if-condition where .csv file exists or not. If file exists I used MappingStrategyWithoutHeader strategy, and if file didn't yet exist, I used MappingStrategyWithHeader strategy. Not ideal, but I got it working.
I am using extent reports in appium with testng and its working fine for me.whenver my tests run is completed then extent report generates html file in my project folder and that is what expected.
Issue is that when I again run my tests then extent report generate new html report file by overwrting the name of previously created html file.
I want extent report to generate html file with unique names or name with date in in, each time when I run my tests
You can create your file name to be the current timestamp. This way, it will be easy to have a unique name for your report file -
String timeStamp = new SimpleDateFormat("yyyy.MM.dd.HH.mm.ss").format(new Date());
extent = new ExtentReports (userDir +"\\test-output\\" + timeStamp + ".html", true);
You can do it by setting unique name:
String reportFile = resultDirectory + fileName + ".html";
than method for saving report to certain folder:
public void saveReportFolder() throws IOException {
File srcDir = new
File(System.getProperty("user.home")+"/Automation/target");
File destDir = new File(System.getProperty("user.home") + "/reports/"+ System.getProperty("user.name")+"/"+dateTimeGenerator());
FileUtils.copyDirectory(srcDir, destDir);
}
...and utility for setting dateTime:
public static String dateTimeGenerate(){
Format formatter = new SimpleDateFormat("YYYYMMdd_HHmmssSSS");
Date date = new Date(System.currentTimeMillis());
return formatter.format(date);
}
Or simply use klov reports start server and have everything in database (MongoDb), it is more elegant way to go.
Hope this helps,
I use:
private static String timestamp = new SimpleDateFormat("HH:mm:ss").format(Calendar.getInstance().getTime()).replaceAll(":", "-");
public static String reportFullPath = getReportsPath() + "\\AutomationReport_" + timestamp + ".html";
I have done it like this, simple and crisp.
String Outputfilename= ExecutionConfig.FileOutname;
System.err.close(); // written to remove JAVA 9 incompatibility.. continued below
System.setErr(System.out); // continue.. and remove the warnings
extent = new ExtentReports(System.getProperty("user.dir") + "/test-output/"+Outputfilename+".html", true);
So here ExecutionConfig.FileOutname is called from the class ExecutionConfig where i am reading the values from the config.properties file. and then here assigning it to the output-file.
Also it worked for me.
I also faced a similar issue. As in the real-world, we need old reports as well. Below is the solution in Java for Extent PDF report
I added an event listener method. Event used- TestRunStarted. We further need to register for this event too. The solution can be done for HTML report too.
public void setCustomReportName(TestRunStarted event)
{
final SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd.HH.mm.ss");
Timestamp timestamp = new Timestamp(System.currentTimeMillis());
String currenttimestamp =sdf.format(timestamp);
Properties prop=new Properties();
//extent.reporter.pdf.out is the name of property which tell the report path
prop.setProperty("extent.reporter.pdf.out", "test output/PdfReport/ExtentPdf_"+currenttimestamp+".pdf");
ExtentService e1 =new ExtentService();
//ExtentReportsLoader is the inner class of ExtentService and initPdf is its private method which takes the path for report
Class<?>[] a=e1.getClass().getDeclaredClasses();
Method met;
//Even there is exception test run wont fail and report will also be generated (ExtentPdf.pdf)
try {
met = a[0].getDeclaredMethod("initPdf", Properties.class);
met.setAccessible(true);
met.invoke(a[0], prop);
} catch (NoSuchMethodException e) {
System.out.println("There is no method with name initPdf");
} catch (SecurityException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
System.out.println("Argument passed to method initPdf are not correct");
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
Below code specifies that we we can make http connection in blackberry and how to store html page as a string?
I am doing this but I am able to get that http request but when I get response i.e http_ok it is not correct so that I can save text oh html as a string and I can further store that into sqlite.
LabelField title = new LabelField("SQLite Create Database Sample",
LabelField.ELLIPSIS |
LabelField.USE_ALL_WIDTH);
setTitle(title);
add(new RichTextField("Creating a database."));
argURL="https://www.google.com:80";
try {
connDesc = connFact.getConnection(argURL);
if (connDesc != null) {
httpConn = (HttpConnection) connDesc.getConnection();
// //Send Data on this connection
// httpConn.setRequestMethod(HttpConnection.GET);
// //Server Response
StringBuffer strBuffer = new StringBuffer();
inStream = httpConn.openInputStream();
int chr;
int retResponseCode = httpConn.getResponseCode();
if (retResponseCode == HttpConnection.HTTP_OK) {
if (inStream != null) {
while ((chr = inStream.read()) != -1) {
strBuffer.append((char) chr);
}
serverResponceStr = strBuffer.toString();
// appLe.alertForms.get_userWaitAlertForm().append("\n"+serverResponceStr);
//returnCode = gprsConstants.retCodeSuccess;
}
} else {
//returnCode = gprsConstants.retCodeNOK;
}
}
} catch (Exception excp) {
//returnCode = gprsConstants.retCodeDisconn;
excp.printStackTrace();
} `enter code here`
The code does not perform any database functionality, however I tested and it does successfully perform an HttpRequest to an external URL. The data that comes back is based on the response of the server you are making the request to.
The code I used can be found here:
http://snipt.org/vrl7
The only modifications is to keep a running summary of various events, and the response is displayed in the RichTextField. Basically, this looks to be working as intended, and the resulting String should be able to be saved however you see fit; though you may need to be cautious of encoding when saving to a database so that special characters are not lost or misinterpreted.
I am beginner in JavaME. I'd like to make simple dicitionary. The source data is placed on "data.txt" file in "res" directory. The structure is like this:
#apple=kind of fruit;
#spinach=kind of vegetable;
The flow is so simple. User enters word that he want to search in a text field, e.g "apple", system take the user input, read the "data.txt", search the matched word in it, take corresponding word, and display it to another textfield/textbox.
I've managed to read whole "data.txt" using this code..
private String readDataText() {
InputStream is = getClass().getResourceAsStream("data.txt");
try {
StringBuffer sb = new StringBuffer();
int chr, i=0;
while ((chr = is.read()) != -1)
sb.append((char) chr);
return sb.toString();
}
catch (Exception e) {
}
return null;
}
but I still dont know how to split it, find the matched word with the user input and take corresponding word. Hope somebody willing to share his/her knowledge to help me..
Basically you want something like this:
private String readDataText() {
InputStream is = getClass().getResourceAsStream("data.txt");
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line;
try {
while ((line = br.readLine()) != null)
{
String[] split = line.split("=");
if (split[0].equals("#someFruit"))
return split[1];
}
}
catch (Exception e) {}
return null;
}
Read the line using a BufferedReader, no need to handle single chars.
Split the line by the = token
Check if the key in the dictionary is the wanted key, if so, return the value.
We have an ASP.Net site that redirects you to a url that shows a session-id. like this:
http://localhost/(S(f3rjcw45q4cqarboeme53lbx))/main.aspx
This id is unique with every request.
Is it possible to test this site using a standard visual studio 2008/2010 webtest? How can I provide the test this data?
I have to call a couple of different pages using that same id.
Yes, it is relatively easy to do this. You will need to create a coded webtest however.
In my example we have a login post that will return the url including the session string.
Just after the we yield the login post request (request3) to the enumerator I call the following.
WebTestRequest request3 = new WebTestRequest((this.Context["WebServer1"].ToString() + "/ICS/Login/English/Login.aspx"));
//more request setup code removed for clarity
yield return request3;
string responseUrl = Context.LastResponse.ResponseUri.AbsoluteUri;
string cookieUrl = GetUrlCookie(responseUrl, this.Context["WebServer1"].ToString(),"/main.aspx");
request3 = null;
Where GetUrlCookie is something like this:
public static string GetUrlCookie(string fullUrl, string webServerUrl, string afterUrlPArt)
{
string result = fullUrl.Substring(webServerUrl.Length);
result = result.Substring(0, result.Length - afterUrlPArt.Length);
return result;
}
Once you have the session cookie string, you can substitute it really easy in any subsequent urls for request/post
e.g.
WebTestRequest request4 = new WebTestRequest((this.Context["WebServer1"].ToString() + cookieUrl + "/mySecureForm.aspx"));
I apologise for my code being so rough, but it was deprecated in my project and is pulled from the first version of the codebase - and for saying it was easy :)
For any load testing, depending on your application, you may have to come up with a stored procedure to call to provide distinct login information each time the test is run.
Note, because the response url cannot be determined ahead of time, for the login post you will have to temporarily turn off the urlValidationEventHandler. To do this I store the validationruleeventhandler in a local variable:
ValidateResponseUrl validationRule1 = new ValidateResponseUrl();
urlValidationRuleEventHandler = new EventHandler<ValidationEventArgs>(validationRule1.Validate);
So can then turn it on and off as I require:
this.ValidateResponse -= urlValidationRuleEventHandler ;
this.ValidateResponse += urlValidationRuleEventHandler ;
The alternative is to code your own such as this (reflectored from the Visual Studio code and changed to be case insensitive.
class QueryLessCaseInsensitiveValidateResponseUrl : ValidateResponseUrl
{
public override void Validate(object sender, ValidationEventArgs e)
{
Uri uri;
string uriString = string.IsNullOrEmpty(e.Request.ExpectedResponseUrl) ? e.Request.Url : e.Request.ExpectedResponseUrl;
if (!Uri.TryCreate(e.Request.Url, UriKind.Absolute, out uri))
{
e.Message = "The request URL could not be parsed";
e.IsValid = false;
}
else
{
Uri uri2;
string leftPart = uri.GetLeftPart(UriPartial.Path);
if (!Uri.TryCreate(uriString, UriKind.Absolute, out uri2))
{
e.Message = "The request URL could not be parsed";
e.IsValid = false;
}
else
{
uriString = uri2.GetLeftPart(UriPartial.Path);
////this removes the query string
//uriString.Substring(0, uriString.Length - uri2.Query.Length);
Uri uritemp = new Uri(uriString);
if (uritemp.Query.Length > 0)
{
string fred = "There is a problem";
}
//changed to ignore case
if (string.Equals(leftPart, uriString, StringComparison.OrdinalIgnoreCase))
{
e.IsValid = true;
}
else
{
e.Message = string.Format("The value of the ExpectedResponseUrl property '{0}' does not equal the actual response URL '{1}'. QueryString parameters were ignored.", new object[] { uriString, leftPart });
e.IsValid = false;
}
}
}
}
}