Develop Reference

org.xml.sax.SAXParseException error while integrating XML for generating PDF

While Running the following code in order to read an XML file and generating a corresponding PDF. I am facing the errors mentioned below the code.
package com.test.pdf;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;
import org.apache.log4j.Logger;
import com.google.zxing.WriterException;
import com.itextpdf.text.Chunk;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.pdf.PdfDocument;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.text.pdf.parser.PdfTextExtractor;
import com.itextpdf.xmp.impl.Base64;
//import com.itextpdf.text.pdf.codec.Base64;
import org.apache.log4j.Logger;
public class PDFGenerator {
final static Logger logger = Logger.getLogger(PDFGenerator.class);
private static final String TITLE = "TestReport";
public static final String PDF_EXTENSION = ".pdf";
public static String arg1 = "";
public static String arg2 = "";
public static String arg3 = "";
public static String createPDFBase64(String arg1 , String arg2 , String arg3) throws IOException, URISyntaxException, com.lowagie.text.DocumentException, WriterException {
byte[] encoded = null;
String out= null;
Document document = new Document();
try {
//arg1 = args[0];
//Document is not auto-closable hence need to close it separately
document = new Document(PageSize.LETTER);
System.out.println("Here i amn777");
File temp = File.createTempFile(TITLE ,PDF_EXTENSION);
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(
temp)); // new File
HeaderFooter event = new HeaderFooter(arg2);
event.setHeader("Test Report");
writer.setPageEvent(event);
document.open();
PDFCreator pdfCreator = new PDFCreator();
pdfCreator.addMetaData(document, arg1 , arg2 );
pdfCreator.addTitlePage(document, arg2 );
//PDFCreator.addContent(document, dataObjList);
//String base64String = Base64.encodeFromFile("C:\\Users\\2000554\\Downloads\\HTMLToPDF\\TestReport.pdf");
//System.out.println("===============>>>" + base64String);
document.close();
byte[] inFileBytes = Files.readAllBytes(temp.toPath());
//PdfReader pReader = new PdfReader(inFileBytes);
//System.out.println("pReader.getFileLength()===============>>>" + pReader.getFileLength());
//System.out.println("pReader.getFileLength()===============>>>" + PdfTextExtractor.getTextFromPage(pReader, 1));
out = new String(Base64.encode(inFileBytes), "UTF-8");
System.out.println("Clear cache..");
pdfCreator.xmlData.clear();
pdfCreator.dataObjMRCList.clear();
pdfCreator.dataObjNRCList.clear();
pdfCreator.dataObjVASList.clear();
pdfCreator.dataObjDEVList.clear();
pdfCreator.stcPhoneNumDispList.clear();
pdfCreator.stcSvcMap.clear();
pdfCreator.stcSvcBandWthMap.clear();
pdfCreator.invoiceTaxDvcMap.clear();
//byte[] decoded = java.util.Base64.getDecoder().decode(out.getBytes());
/* byte[] decoded = Base64.decode(out.getBytes());
FileOutputStream fos = new FileOutputStream("C:\\Users\\2000554\\Downloads\\HTMLToPDF\\TestBaseReport.pdf");
fos.write(decoded);
fos.flush();
fos.close();*/
}catch ( FileNotFoundException e) {
System.out.println("FileNotFoundException occurs.." + e.getMessage());
e.printStackTrace();
}catch (DocumentException e) {
System.out.println("DocumentException occurs.." + e.getMessage());
e.printStackTrace();
} catch (Exception e) {
System.out.println("Exception occurs.." + e.getMessage());
e.printStackTrace();
return null;
}
finally{
if(null != document){
// document.close();
}
}
return out;
}
public static void main(String args[]) {
try {
if(args != null && args.length>1) {
FileReader fReader = new FileReader(new File("C:\\Users\\2004807\\Downloads\\XML\\Amendment.xml"));
BufferedReader bdr = new BufferedReader(fReader);
String line = null;
String xmlString = "";
while ((line=bdr.readLine())!=null){
xmlString += line;
}
createPDFBase64(xmlString,args[1],args[2]);
}else {
createPDFBase64("","","");
}
} catch (IOException e) {
e.printStackTrace();
} catch (URISyntaxException e) {
e.printStackTrace();
} catch (com.lowagie.text.DocumentException e) {
e.printStackTrace();
} catch (WriterException e) {
e.printStackTrace();
}
}
}
I rechecked the path and the XML format since the error mentioned is due to wrong formatting of XML in some cases. I still am getting the following error.
Here i amn777
1getting resourcesfile:/C:/Users/2004807/Desktop/B2B%20Java/HtmlToPdf/target/classes/new.PNG
Inside getXMLData
XML==>
[Fatal Error] :1:1: Premature end of file.
Error is :org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Premature end of file.
xmlData size is :0

Box Java sdk - The API returned an error code 404 - Not Found

I need to create a utility, which downloads the files from the box folder. But I am unable to get it working though:
package com.box.sdk.example;
import com.box.sdk.BoxConfig;
import com.box.sdk.BoxDeveloperEditionAPIConnection;
import com.box.sdk.BoxFile;
import com.box.sdk.BoxFolder;
import com.box.sdk.BoxItem;
import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
public class PlayGround {
public static void main(String[] args) {
Path configPath = Paths.get("config.json");
Path currentDir = Paths.get("").toAbsolutePath();
try (BufferedReader reader = Files.newBufferedReader(configPath, Charset.forName("UTF-8"))) {
BoxConfig boxConfig = BoxConfig.readFrom(reader);
BoxDeveloperEditionAPIConnection client = BoxDeveloperEditionAPIConnection.getAppEnterpriseConnection(boxConfig);
String folderId = "125601757844";
BoxFolder folder = new BoxFolder(client, folderId);
String folderName = folder.getInfo().getName();
Path localFolderPath = currentDir.resolve(Paths.get(folderName));
if (!Files.exists(localFolderPath)) {
localFolderPath = Files.createDirectory(localFolderPath);
} else {
localFolderPath = resetLocalFolder(localFolderPath);
}
for (BoxItem.Info itemInfo : folder) {
if (itemInfo instanceof BoxFile.Info) {
BoxFile.Info fileInfo = (BoxFile.Info) itemInfo;
BoxFile file = new BoxFile(client, fileInfo.getID());
String localFilePath = localFolderPath.resolve(Paths.get(fileInfo.getName())).toAbsolutePath()
.toString();
FileOutputStream stream = new FileOutputStream(localFilePath);
file.download(stream);
stream.close();
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
static Path resetLocalFolder(Path localFolderPath) throws IOException {
Files.list(localFolderPath).forEach(file -> {
System.out.println(file.getFileName());
try {
Files.delete(file.toAbsolutePath());
} catch (IOException e) {
}
});
Files.delete(localFolderPath);
localFolderPath = Files.createDirectory(localFolderPath);
return localFolderPath;
}
}
When I run this code, I get the following exception:
Exception in thread "main" com.box.sdk.BoxAPIResponseException: The API returned an error code [404 | lsgp4zgkfg6qipxg.0d094ed7daa5f78921603840e0fa470e1] not_found - Not Found
at com.box.sdk.BoxAPIResponse.<init>(BoxAPIResponse.java:92)
at com.box.sdk.BoxJSONResponse.<init>(BoxJSONResponse.java:32)
at com.box.sdk.BoxAPIRequest.trySend(BoxAPIRequest.java:680)
at com.box.sdk.BoxAPIRequest.send(BoxAPIRequest.java:382)
at com.box.sdk.BoxAPIRequest.send(BoxAPIRequest.java:349)
at com.box.sdk.BoxFolder.getInfo(BoxFolder.java:289)
at com.box.sdk.example.PlayGround.main(PlayGround.java:26)
Note: I am able to run the above code, by using developer token, which lasts for 1 hour, but I can't build my production application on such volatile code.
BoxAPIConnection client = new BoxAPIConnection("3i8b5sPnxUotd5etDuUkzGjXXzBphty9");

TestNG Unit Testing Tar and 7z

folder structure is here
console output is here
I'd like to write a test class for the 2 methods below
package jfe;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.commons.compress.archivers.sevenz.SevenZArchiveEntry;
import org.apache.commons.compress.archivers.sevenz.SevenZFile;
import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;
import org.apache.commons.compress.utils.IOUtils;
public class JThreadFile {
/**
* uncompresses .tar file
* #param in
* #param out
* #throws IOException
*/
public static void decompressTar(String in, File out) throws IOException {
try (TarArchiveInputStream tin = new TarArchiveInputStream(new FileInputStream(in))){
TarArchiveEntry entry;
while ((entry = tin.getNextTarEntry()) != null) {
if (entry.isDirectory()) {
continue;
}
File curfile = new File(out, entry.getName());
File parent = curfile.getParentFile();
if (!parent.exists()) {
parent.mkdirs();
}
IOUtils.copy(tin, new FileOutputStream(curfile));
}
}
}
/**
* uncompresses .7z file
* #param in
* #param destination
* #throws IOException
*/
public static void decompressSevenz(String in, File destination) throws IOException {
//#SuppressWarnings("resource")
SevenZFile sevenZFile = new SevenZFile(new File(in));
SevenZArchiveEntry entry;
while ((entry = sevenZFile.getNextEntry()) != null){
if (entry.isDirectory()){
continue;
}
File curfile = new File(destination, entry.getName());
File parent = curfile.getParentFile();
if (!parent.exists()) {
parent.mkdirs();
}
FileOutputStream out = new FileOutputStream(curfile);
byte[] content = new byte[(int) entry.getSize()];
sevenZFile.read(content, 0, content.length);
out.write(content);
out.close();
}
sevenZFile.close();
}
}
I use testNG and try to read from a folder, filter the folder for certain extensions (.tar and .7z) feed those files to the uncompress methods and compare the result to the actualOutput folder with AssertEquals. I manage to read the file names from the folder (see console output) but can't feed them to decompressTar(String in, File out). Is this because "result" is a String array and I need a String? I have no clue how DataProvider of TestNG handles data. Any help would be appreciated :) Thank you :)
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import org.testng.Assert;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
public class JThreadFileTest {
protected static final File ACT_INPUT = new File("c:\\Test\\TestInput\\"); //input directory
protected static final File EXP_OUTPUT = new File("c:\\Test\\ExpectedOutput\\"); //expected output directory
protected static final File TEST_OUTPUT = new File("c:\\Test\\TestOutput\\");
#DataProvider(name = "tarJobs")
public Object[] getTarJobs() {
//1
String[] tarFiles = ACT_INPUT.list(new FilenameFilter()
{
public boolean accept(File dir, String name)
{
return name.endsWith(".tar");
}
});
//2
Object[] result = new Object[tarFiles.length];
int i = 0;
for (String filename : tarFiles) {
result[i] = filename;
i++;
}
return result;
}
#Test(dataProvider = "tarJobs")
public void testTar(String result) throws IOException {
System.out.println("Running test" + result);
--> JThreadFile.decompressTar(result, TEST_OUTPUT);
Assert.assertEquals(TEST_OUTPUT, EXP_OUTPUT);
}
}

Search for a string in html file using Jsoup

Can anyone help me with searching for a particular string in HTML file using Jsoup or any other method. There are inbuilt methods but they help in extracting title or script texts inside a specific tags and not string in general.
In this code I have used one such inbuilt method to extract title from the html page.
But I want to search a string instead.
package dynamic_tester;
import java.io.File;
import java.io.IOException;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
public class tester {
public static void main(String args[])
{
Document htmlFile = null;
{
try {
htmlFile = Jsoup.parse(new File("x.html"), "ISO-8859-1");
}
catch (IOException e)
{
e.printStackTrace();
}
String title = htmlFile.title();
System.out.println("Title = "+title);
}
}
}

Here's a sample. It reads the HTML file as text String and then performs search on that String.
package com.example;
import java.io.FileInputStream;
import java.nio.charset.Charset;
public class SearchTest {
public static void main(String[] args) throws Exception {
StringBuffer htmlStr = getStringFromFile("test.html", "ISO-8859-1");
boolean isPresent = htmlStr.indexOf("hello") != -1;
System.out.println("is Present ? : " + isPresent);
}
private static StringBuffer getStringFromFile(String fileName, String charSetOfFile) {
StringBuffer strBuffer = new StringBuffer();
try(FileInputStream fis = new FileInputStream(fileName)) {
byte[] buffer = new byte[10240]; //10K buffer;
int readLen = -1;
while( (readLen = fis.read(buffer)) != -1) {
strBuffer.append( new String(buffer, 0, readLen, Charset.forName(charSetOfFile)));
}
} catch(Exception ex) {
ex.printStackTrace();
strBuffer = new StringBuffer();
}
return strBuffer;
}
}

Couldn't append the text onto a Google Drive File

I am trying to append text to a text file on the Google Drive. But when I write, it whole file is overwritten. Why can't I just add the text in the end of the file?
DriveFile file = Drive.DriveApi.getFile(mGoogleApiClient, id);
file.open(mGoogleApiClient, DriveFile.MODE_WRITE_ONLY, null).setResultCallback(new ResultCallback<DriveApi.DriveContentsResult>() {
#Override
public void onResult(DriveApi.DriveContentsResult driveContentsResult) {
msg.Log("ContentsOpenedCallBack");
if (!driveContentsResult.getStatus().isSuccess()) {
Log.i("Tag", "On Connected Error");
return;
}
final DriveContents driveContents = driveContentsResult.getDriveContents();
try {
msg.Log("onWrite");
OutputStream outputStream = driveContents.getOutputStream();
Writer writer = new OutputStreamWriter(outputStream);
writer.append(et.getText().toString());
writer.close();
driveContents.commit(mGoogleApiClient, null);
} catch (IOException e) {
e.printStackTrace();
}
}
});

Finally I've found the answer to append the text on the drive document.
DriveContents contents = driveContentsResult.getDriveContents();
try {
String input = et.getText().toString();
ParcelFileDescriptor parcelFileDescriptor = contents.getParcelFileDescriptor();
FileInputStream fileInputStream = new FileInputStream(parcelFileDescriptor
.getFileDescriptor());
// Read to the end of the file.
fileInputStream.read(new byte[fileInputStream.available()]);
// Append to the file.
FileOutputStream fileOutputStream = new FileOutputStream(parcelFileDescriptor
.getFileDescriptor());
Writer writer = new OutputStreamWriter(fileOutputStream);
writer.write("\n"+input);
writer.close();
driveContentsResult.getDriveContents().commit(mGoogleApiClient, null);
} catch (IOException e) {
e.printStackTrace();
}
SO

The reason is that commit's default resolution strategy is to overwrite existing files. Check the API docs and see if there is a way to append changes.

For anyone facing this problem in 2017 :
Google has some methods to append data Here's a link!
Though copying the method from google didn't worked entirely for me , so here is the class which would append data : ( Please note this is a modified version of this code link )
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.ParcelFileDescriptor;
import android.preference.PreferenceManager;
import android.util.Log;
import com.google.android.gms.common.api.Result;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.drive.Drive;
import com.google.android.gms.drive.DriveApi.DriveContentsResult;
import com.google.android.gms.drive.DriveApi.DriveIdResult;
import com.google.android.gms.drive.DriveContents;
import com.google.android.gms.drive.DriveFile;
import com.google.android.gms.drive.DriveId;
/**
* An activity to illustrate how to edit contents of a Drive file.
*/
public class EditContentsActivity extends BaseDemoActivity {
private static final String TAG = "EditContentsActivity";
#Override
public void onConnected(Bundle connectionHint) {
super.onConnected(connectionHint);
final ResultCallback<DriveIdResult> idCallback = new ResultCallback<DriveIdResult>() {
#Override
public void onResult(DriveIdResult result) {
if (!result.getStatus().isSuccess()) {
showMessage("Cannot find DriveId. Are you authorized to view this file?");
return;
}
DriveId driveId = result.getDriveId();
DriveFile file = driveId.asDriveFile();
new EditContentsAsyncTask(EditContentsActivity.this).execute(file);
}
};
SharedPreferences sp= PreferenceManager.getDefaultSharedPreferences(EditContentsActivity.this);
Drive.DriveApi.fetchDriveId(getGoogleApiClient(), EXISTING_FILE_ID)
.setResultCallback(idCallback);
}
public class EditContentsAsyncTask extends ApiClientAsyncTask<DriveFile, Void, Boolean> {
public EditContentsAsyncTask(Context context) {
super(context);
}
#Override
protected Boolean doInBackgroundConnected(DriveFile... args) {
DriveFile file = args[0];
SharedPreferences sp=PreferenceManager.getDefaultSharedPreferences(EditContentsActivity.this);
System.out.println("0"+sp.getString("drive_id","1"));
DriveContentsResult driveContentsResult=file.open(getGoogleApiClient(), DriveFile.MODE_READ_WRITE, null).await();
System.out.println("1");
if (!driveContentsResult.getStatus().isSuccess()) {
return false;
}
DriveContents driveContents = driveContentsResult.getDriveContents();
try {
System.out.println("2");
ParcelFileDescriptor parcelFileDescriptor = driveContents.getParcelFileDescriptor();
FileInputStream fileInputStream = new FileInputStream(parcelFileDescriptor
.getFileDescriptor());
// Read to the end of the file.
fileInputStream.read(new byte[fileInputStream.available()]);
System.out.println("3");
// Append to the file.
FileOutputStream fileOutputStream = new FileOutputStream(parcelFileDescriptor
.getFileDescriptor());
Writer writer = new OutputStreamWriter(fileOutputStream);
writer.write("hello world");
writer.close();
System.out.println("4");
driveContents.commit(getGoogleApiClient(), null).await();
return true;
} catch (IOException e) {
e.printStackTrace();
}
return false;
};
#Override
protected void onPostExecute(Boolean result) {
if (!result) {
showMessage("Error while editing contents");
return;
}
showMessage("Successfully edited contents");
}
}
}
Existing_File_id is the resource id. Here is one link if you need resource id a link