2024年4月28日发(作者：)

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Here we are to the Firefox browser and we will pass this to the Webdriver. We can set different preferences based on the requirement. In this

tutorial there are many other preferences which are used when .

public static FirefoxProfile firefoxProfile() throws Exception {

FirefoxProfile firefoxProfile = new FirefoxProfile();

ference("List",2);

ference("enStarting",false);

ference("",downloadPath);

ference("Disk",

"text/csv,application/x-msexcel,application/excel,application/x-excel,application/-excel,image/png,image/jpeg,text/html,text/plain,application/msword,application/xml");

return firefoxProfile;

}

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Below method takes the download directory and the file name, which will check for the file name mention in the directory and will return 'True' if

the document is available in the folder else 'false'. When we are sure of the file name, we can make use of this method to verify.

public boolean isFileDownloaded(String downloadPath, String fileName) {

boolean flag = false;

File dir = new File(downloadPath);

File[] dir_contents = les();

for (int i = 0; i < dir_; i++) {

if (dir_contents[i].getName().equals(fileName))

return flag=true;

}

return flag;

}

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The below method takes two parameters, first takes the folder path and the file extension / mime type. it will return true if the file with the

specific extension is available in the specified folder.

/* Check the file from a specific directory with extension */

private boolean isFileDownloaded_Ext(String dirPath, String ext){

boolean flag=false;

File dir = new File(dirPath);

File[] files = les();

if (files == null || == 0) {

flag = false;

}

for (int i = 1; i < ; i++) {

if(files[i].getName().contains(ext)) {

flag=true;

}

}

return flag;

}

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The below method is used to get the document name based on the last action performed in the specified folder. This is done by using which

returns a long value representing the time the file was last modified.

/* Get the latest file from a specific directory*/

private File getLatestFilefromDir(String dirPath){

File dir = new File(dirPath);

File[] files = les();

if (files == null || == 0) {

return null;

}

File lastModifiedFile = files[0];

for (int i = 1; i < ; i++) {

if (dified() < files[i].lastModified()) {

lastModifiedFile = files[i];

}

}

return lastModifiedFile;

}

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When ever we click on download, based on the file size and network we need to wait for specific to complete download operation. If not we

may encounter issues as the file is not downloaded.

We can also make use of 'Java Watch Service API' which monitors the changes in the directory. Note: This is compatible with Java 7 version.

Below is the example program using Watch Service API. And here we will user only for 'ENTRY_CREATE' event.

public static String getDownloadedDocumentName(String downloadDir, String fileExtension)

{

String downloadedFileName = null;

boolean valid = true;

boolean found = false;

//default timeout in seconds

long timeOut = 20;

try

{

Path downloadFolderPath = (downloadDir);

WatchService watchService = ault().newWatchService();

er(watchService, _CREATE);

long startTime = tTimeMillis();

do

{

WatchKey watchKey;

watchKey = (timeOut,S);

long currentTime = (tTimeMillis()-startTime)/1000;

if(currentTime>timeOut)

{

n("Download operation timed out.. Expected file was not downloaded");

return downloadedFileName;

}

for (WatchEvent> event : ents())

{

> kind = ();

if ((_CREATE))

{

String fileName = t().toString();

n("New File Created:" + fileName);

if(th(fileExtension))

{

downloadedFileName = fileName;

n("Downloaded file found with extension " + fileExtension + ". File name is " +

fileName);

(500);

found = true;

break;

}

}

}

if(found)

{

return downloadedFileName;

}

else

{

currentTime = (tTimeMillis()-startTime)/1000;

if(currentTime>timeOut)

{

n("Failed to download expected file");

return downloadedFileName;

}

valid = ();

}

} while (valid);

}

catch (InterruptedException e)

{

n("Interrupted error - " + sage());

tackTrace();

}

catch (NullPointerException e)

{

n("Download operation timed out.. Expected file was not downloaded");

}

catch (Exception e)

{

n("Error occured - " + sage());

tackTrace();

}

return downloadedFileName;

}

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