Comparing two files in BPEL

Hi all,
I am here with one more problem..
I am reading one fixed length file from a location. I have another file at different location where I have to write the incoming file. Now before writing the file I have to compare the input file with existing one. If input file has anything extra I have to get extra data from the input file & write it to database also replace existing file with input file.
How can I achieve this?

There is now compare function per sa, what you can do is compare certain elements. To read the second file you can use the sync read. If you are doing this make sure your files are small as I can see issues if your files are large, e.g. 1 MB +
cheers
James

Similar Messages

How to compare two files in java & uncommon text should print in text file.

Hi,
Can any one help me to write Core java program for this.
How to compare two files in java & uncommon text should print in other text file.
thanks
Sam

Hi All,
i m comparing two HTML file.. thats why i am getting problem..
import java.io.BufferedReader;
import java.io.FileReader;
public class textmatch{
public static void main(String[] argv)
throws Exception{
BufferedReader fh =new BufferedReader(new FileReader("internal.html"),1024);
BufferedReader sh = new BufferedReader(new FileReader("external.html"),1024);
String s;
String y;
while ((s=fh.readLine())!=null)
if ( s.equals(y=sh.readLine()) ){
System.out.println(s + " " + y); //REMOVE THIS PRINTLN STATEMENT IF YOU JUST WANT TO SHOW THE SIMILARITIES
sh.close();
fh.close(); }
thanks
Sam

How to compare two files in Java & uncommon text should print in Diff text

Hi All,
can any one help me to write a java program..
How to compare two files in Java & uncommon text should print in Diff text file..
Thanks
Sam

Hi All,
i m comparing two HTML file.. thats why i am getting problem..
import java.io.BufferedReader;
import java.io.FileReader;
public class textmatch{
public static void main(String[] argv)
throws Exception{
BufferedReader fh =new BufferedReader(new FileReader("internal.html"),1024);
BufferedReader sh = new BufferedReader(new FileReader("external.html"),1024);
String s;
String y;
while ((s=fh.readLine())!=null)
if ( s.equals(y=sh.readLine()) ){
System.out.println(s + " " + y); //REMOVE THIS PRINTLN STATEMENT IF YOU JUST WANT TO SHOW THE SIMILARITIES
sh.close();
fh.close(); }
thanks
Sam

How to compare two files char by char

Hi,
I want to compare two files and after Comparison i want all the differences in the new file has to be updated to old file (Without deleteing the contents of the file)?
Any help will be appriciated.
Thanks.

I think i have to elaborate my question�.. for
example take a file called xyz.xml which contain some
data which I don�t want to get deleted� after some
days this file has been modified (i.e. some more data
has been added) . Now without overwriting the file
/deleting the earlier contents of file xyz.xml. How
do I update xyz.xml file?
Now I think iam clear.
Thanks.This does not make sense at all! Either your file has been changed or it has not. If it has been changed then there is nothing to do. If it has not been changed then there is nothing to do.

How to open acrobat in java and compare two files using javacode

I am absolutely new to use acrobat software in Java. I want to open two pdf files at a time and then compare the differences between them thru java program .
i am not sure how to do it. iam trying many ways without success.
I used jre and could open open files using runtime method , but couldn't do comaparision. i..e could't access tools menu (alt+t) Compare two files and <enter>. help in java will be appreciated.
Pls guide me the steps to use the acrobat library. At http://partners.adobe.com/asn/acrobat i found supporting vb and vc only.
Any help or links are greatly appreciated.

iText is an open source PDF library, reads a PDF one page at a time. You could check it out. I've used it for writing/splitting/concatenating PDFs, but not comparing files
http://www.lowagie.com/iText/
Scott
http://www.swiftradius.com

Linux Diff tool as External tool in Jdev to compare two files

Hi, I was looking for adding any diff tool to compare two files in Jdev. I added the usual Linux "diff <file1> <file2>" to compare two files. The way I have provided arguments compares a file against itself.
Program: diff
Arguments: ${file.name} ${file.name}
Directory: ${file.dir}
My requirement to to right click on the two files which I want to compare and the open them in any diff tool.
Any ideas?
Regards,
Ramesh

Which jdev version?
I don't see how this can be done. How do you select two files in jdev?
As you provided the same name as file1 and file2 it's clear that you compare the file to itself.
Timo

How to compare two files using MD5?

Hi,all:
How to compare two files to know if they're the same without any difference?I want to use MD5, but I just konw how get a message digest of a string. How to get a message digest of a file? Or there is other method to compare two files?
Thanks advance!

This is starting to sound rather a lot like a homework problem.
An MD5 message digest is simply a 16 byte array. To compare two message digests...
byte[] md5incoming = ...
byte[] md5comparison = ...
if( md5incoming.equals(md5comparison) ) {
System.out.println("MD5 Checksums match");
}To find out how to generate an MD5 checksum, please look up MessageDigest in the API documentation, and do a google search for "MD5 java"
In a networked scenario, there are two issues - firstly the performance in sending copies of files all over the place (imagine if it's a 10Gb file to be compared over a 14.4K modem link, this would take a while). Secondly, the network link itself might insert an error in the file and you'd get a false miss.
By only sending MD5 digests over the link, you simultaneously reduce the error (shorter files are less likely to be corrupted) and reduce the transmission time (16 bytes takes practically no time to transmit over damp string, let alone any sort of sensible device).
D.

How to compare two files in SAP

Hi All,
I have downloaded the contents of a custom table in two files and saved in the uncoverted format, now I want to comapre the contents of these files and see if there is any difference in these files or not. So is there any utility in SAP which I can use to compare these two files.
Thanks,
Rajeev

I can think of 3 alternatives -
1. Write a report to upload the data and then compare the internal table.
2. Download data in XLS file and use Excel utilities to compare.
3. Use file compring tools .( Thanks to Thomas - http://en.wikipedia.org/wiki/Comparison_of_file_comparison_tools)

How to compare two files?

Folks:
Is there any utility class or method that I can use to compare the contents of two files? Something like diff comamnd in UNIX.
Thanks a lot!

I wrote the following program and it seems to work. Any suggestion is welcome!
import java.io.*;
public class ContentComparator
* Returns <code>true</code> if both input streams byte contents is identical.
* @param input1
* first input to contents compare
* @param input2
* second input to contents compare
* @return <code>true</code> if content is equal
boolean contentsEqual( InputStream is1, InputStream is2, boolean ignoreWhitespace )
try
if( is1 == is2 )
return true;
if( is1 == null && is2 == null ) // no byte contents
return true;
if( is1 == null || is2 == null ) // only one has
// contents
return false;
while( true )
int c1 = is1.read();
while( ignoreWhitespace && isWhitespace( c1 ) )
c1 = is1.read();
int c2 = is2.read();
while( ignoreWhitespace && isWhitespace( c2 ) )
c2 = is2.read();
if( c1 == -1 && c2 == -1 )
return true;
if( c1 != c2 )
break;
catch( IOException ex )
finally
try
try
if( is1 != null )
is1.close();
finally
if( is2 != null )
is2.close();
catch( IOException e )
// Ignore
return false;
private boolean isWhitespace( int c )
if( c == -1 )
return false;
return Character.isWhitespace( ( char )c );
public static void main( String[] args )
InputStream is1 = null;
InputStream is2 = null;
try
is1 = new FileInputStream( "c:\\file1.txt" );
is2 = new FileInputStream( "c:\\file2.txt" );
catch( FileNotFoundException e )
e.printStackTrace();
ContentComparator cc = new ContentComparator();
boolean ifIgnoreWhiteSpace = true;
boolean ifEqual = cc.contentsEqual( is1, is2, ifIgnoreWhiteSpace );
System.out.println( "Are those two files equal? " + ifEqual );

How to compare two file differnces

Hi All ,
I have two files on my presentation server one file will have some errors and another will conatine corrected , Now I have to compare those two files and display the differed recoreds as a list.Please provide me the required code.
Thank you ,
Satheesh.

Somebody has thought of this before...
http://en.wikipedia.org/wiki/Comparison_of_file_comparison_tools
You don't need a new ABAP program for this.
Thomas

How to COmpare two variable in BPEL

Hi ,
I have two compare two variable ( EIN field ) one from input variable of a BPEL process and other one the output variable of a invoke .
My requiremet is like this :
If the the value of both EIN field is same then I have to assign Name field of Invoke output parameter to Output variable of BPEL process .
If the value doesn't match then i have to assign ' No Data Exist ' expression to Output variable of BPEL process .
How can i do this .
Please help me regarding this as early as possible .

You can do this in a switch statement. Perform a comparision to check if the values are the same, if case is not important (because users will enter anything) wrap the code in a case expression, e.g. upper(user_date) = upper(file_data)
What version of SOA Suite and JDev are you using. Make sure that these versions are in sync.
cheers
James

Compare Two Files

Hi All,
I have requirement of comparing two fixed lenght files of 70MB and get the difference between them.
Is there any API to do this.
Any help would really be appreciated.
Thank you.

If the files are always exactly the same size with just a few bytes modified then just read the files a buffer at a time and compare the content of the buffers. DataInputStream.readFully() is then probably the easiest way to do this.
If the files are text files of nearly the same length with just small differences then check out http://www.bmsi.com/java/#diff .

How to RELIABLY compare two File objects?

Hi java community!
I have two File objects and I need to know whether they both point to the same file on the system. First, I tried using the equals() method of the File object, but later I found that this often returns false even when file being pointed to by both objects is the same file.
For example:
public static void main(String[] args) throws Exception {
    File mFileA = new File("C:\\PROGRA~1\\MYPROG~1\\MYDATA~1.TXT");
    File mFileB = new File("C:\\Program Files\\My Program\\My Data File.txt");
    DataInputStream mInputA = new DataInputStream(new BufferedInputStream(new FileInputStream(mFileA)));
    DataInputStream mInputB = new DataInputStream(new BufferedInputStream(new FileInputStream(mFileB)));
    System.out.println("Contents of file A:");
    while (mInputA.available() > 0) {
      System.out.println(mInputA.readLine());
    System.out.println("\nContents of file B:");
    while (mInputB.available() > 0) {
      System.out.println(mInputB.readLine());
    System.out.println("\nAre file A and file B the same file?");
    System.out.println(mFileA.equals(mFileB) ? "Yes" : "No");
}Running this gives the following output:
Contents of file A:
First line of the file.
Second line of the file.
Third and final line of the file.
Contents of file B:
First line of the file.
Second line of the file.
Third and final line of the file.
Are file A and file B the same file?
NoIt seems that the different representation of the paths (short 8.3 file names, vs. long file names) is confusing Java into believing that they are two separate files, even though the example above confirms that they are in fact the same file by showing the contents from input streams derived by the two File objects (which are, needless to say, identical).
So, does anyone know how to reliably determine whether two File objects point to the same file?
Cheers,
Martin

sabre150 wrote:
Bren_McGuire wrote:
Thanks guys.
I'd just found it too right after I made this post. :p95% of the time the promised Dukes never arrive so thanks for the Dukes.Ditto

How to compare two datetimes in BPEL?

Hi, All,
I need compare two datetimes in a switch activity, but can't find any function for it.
My switch activity like this:
case date1>date2:
do something;
otherwise:
do something;
There's no such function in "Date Functions" and can't find such function in xpath.
BTY, there's no function to make a time duration(by minus one date from another?..so this back to the data compare issue ).
Thanks.

Hi,
Logical function such as greater/less than function can be used to compare two dates as same as comapring two numbers.
Ex: If your receive variables contains two data elements as date1 and date2 then you can use below format in switch condition.
XpathXpression(date1) > XpathXpression(date2)
hope it will help you.

Using JSplitPane for Comparing two Files/Contents

Hi Java Gurus,
I want to develope a Comparison tool which compares 2 jar files and report the difference in a user friendly manner. Everything is fine and i selected the JSplitPane to display the difference report. I face some problems in doing it exactly simillar way of presenting like a Comparison tools which is there in VSS.
I created 2 panels and added in a splitpane.
one panel contains the content of first jar file and another panel contains the content of second jar file.
The content are added in a textarea and the textarea is added to a scrollpane, which is added to the panel.
If i fix some size to Textarea, when i expand the Splitpane, the size is not getting expanded accordingly.
if i remove the size for textarea, the content is not displayed.
Can anyon give some suggestion.
Have anybody developed a GUI using JSplitPane simmilar to any Difference Tool simillar to VSS.
expecting your replies.
Raffi

Hi,
Eventhough the left and right pane are not synchronized, It is showing the Differences.
I have changed the JTextArea to JTextPane to have control on each of the String i am inserting.
It is fine. but when i am doing the comparison for the second time, i am removing the content of the Document (of the JTextPane) and adding the new Content to the Document (of the JTextPane).
While i am printing the length and text after removing the Old Content (in console), i am getting 0, "". But in the GUI old content are not removed and new content keeps on appending, eventhough i do updateUI() and validate().
Is that a BUG of JTextPane?????????????
Can any One Figure it out.
My Code is Here:
import java.io.*;
import java.util.zip.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.*;
* put your documentation comment here
public class CheckZipFile extends JFrame {
private JLabel firstZip = null;
private JLabel secondZip = null;
private JTextField firstZipName = null;
private JTextField secondZipName = null;
private JButton compare = null;
private JPanel mainPanel = null;
private JFileChooser fileChooser = null;
private JButton chooseButton1 = null;
private JButton chooseButton2 = null;
private StringBuffer buffer = null;
private StringBuffer buffer1 = null;
private StringBuffer buffer2 = null;
private ApolloFileFilter zipFilter;
private JTextPane first = null;
private JTextPane second = null;
private Document doc1 = null;
private Document doc = null;
* put your documentation comment here
public CheckZipFile () {
initialize();
buildGUI();
addWindowListener();
setLookAndFeel();
this.pack();
* put your documentation comment here
private void initialize () {
buffer = new StringBuffer();
buffer1 = new StringBuffer();
buffer2 = new StringBuffer();
zipFilter = new ApolloFileFilter(new String[] {
"zip", "jar"
}, "ZIP and JAR Files");
fileChooser = new JFileChooser(new File("c:\\"));
//fileChooser.setAcceptAllFileFilterUsed(false);
fileChooser.addChoosableFileFilter(zipFilter);
* put your documentation comment here
private void setLookAndFeel () {
try {
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
SwingUtilities.updateComponentTreeUI(this);
if (fileChooser != null) {
SwingUtilities.updateComponentTreeUI(fileChooser);
} catch (UnsupportedLookAndFeelException exc) {
System.out.println("Unsupported Look And Feel:" +
exc);
} catch (IllegalAccessException exc) {
System.out.println("IllegalAccessException Error:"
+ exc);
} catch (ClassNotFoundException exc) {
System.out.println("ClassNotFoundException Error:"
+ exc);
} catch (InstantiationException exc) {
System.out.println("InstantiateException Error:"
+ exc);
* put your documentation comment here
private void buildGUI () {
mainPanel = createPanel();
this.getContentPane().setLayout(new BorderLayout());
this.getContentPane().add(mainPanel, BorderLayout.CENTER);
this.getContentPane().add(createDifferencePanel(), BorderLayout.SOUTH);
this.setSize(700, 450);
SwingUtilities.updateComponentTreeUI(this);
* put your documentation comment here
* @return
private JPanel createPanel () {
JPanel main = new JPanel() {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(300, 90);
main.setLayout(new GridLayout(3, 3));
firstZip = new JLabel("First Jar/Zip File:") {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(100, 30);
main.add(firstZip);
firstZipName = new JTextField() {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(100, 30);
main.add(firstZipName);
chooseButton1 = new JButton("Choose File 1") {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(100, 30);
main.add(chooseButton1);
chooseButton1.addActionListener(new ButtonListener());
secondZip = new JLabel("Second Jar/Zip File:") {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(100, 30);
main.add(secondZip);
secondZipName = new JTextField() {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(100, 30);
main.add(secondZipName);
chooseButton2 = new JButton("Choose File 2") {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(100, 30);
main.add(chooseButton2);
chooseButton2.addActionListener(new ButtonListener());
JLabel temp1 = new JLabel("") {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(100, 30);
main.add(temp1);
compare = new JButton("Compare") {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(100, 30);
compare.addActionListener(new ButtonListener());
main.add(compare);
JLabel temp2 = new JLabel("") {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(100, 30);
main.add(temp2);
return main;
* put your documentation comment here
* @param fileContent1
* @param fileContent2
private void updateGUI (String fileContent1, String fileContent2) {
System.out.println("Came here UpdateGUI");
updateDifferencePanel(fileContent1, fileContent2);
System.out.println("Came here UpdateGUI after call");
SwingUtilities.updateComponentTreeUI(this);
* put your documentation comment here
* @return
private JSplitPane createDifferencePanel () {
JPanel firstPanel = new JPanel() {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(350, 360);
first = new JTextPane();
initStylesForTextPane(first);
doc1 = first.getDocument();
JScrollPane scroll1 = new JScrollPane(first);
scroll1.setPreferredSize(new Dimension(325, 360));
scroll1.setMinimumSize(new Dimension(100, 100));
firstPanel.add(scroll1);
first.updateUI();
first.validate();
JPanel secondPanel = new JPanel() {
* put your documentation comment here
* @return
public Dimension getPrefferedSize () {
return new Dimension(350, 360);
second = new JTextPane();
initStylesForTextPane(second);
doc = second.getDocument();
JScrollPane scroll2 = new JScrollPane(second);
scroll2.setPreferredSize(new Dimension(325, 360));
scroll2.setMinimumSize(new Dimension(100, 100));
secondPanel.add(scroll2);
second.updateUI();
second.validate();
JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,
firstPanel, secondPanel);
splitPane.setDividerLocation(0.5);
splitPane.updateUI();
splitPane.validate();
splitPane.setPreferredSize(new Dimension(700, 360));
return splitPane;
* put your documentation comment here
* @param fileContent1
* @param fileContent2
private void updateDifferencePanel (String fileContent1,
String fileContent2) {
System.out.println("Came here");
try {
doc1 = first.getDocument();
System.out.println("Text bef: " + first.getText());
System.out.println("Length bef: " + doc1.getLength());
doc1.remove(0, doc1.getLength());
System.out.println("Length aft: " + doc1.getLength());
System.out.println("Text aft: " + first.getText());
doc1.insertString(doc1.getLength(), "test", first.getStyle("regular"));
first.updateUI();
first.validate();
} catch (BadLocationException ble1) {
ble1.printStackTrace();
StringTokenizer tokens1 = new StringTokenizer(fileContent1,
String token1 = "";
String text1 = "";
String differs1 = "false";
int indexOfColon1 = -1;
int count1 = 0;
while (tokens1.hasMoreTokens()) {
token1 = (String)tokens1.nextToken();
count1++;
indexOfColon1 = token1.lastIndexOf(":");
text1 = token1.substring(0, indexOfColon1);
differs1 = token1.substring(indexOfColon1 + 1);
try {
if (count1 == 1)
System.out.println("Start: " + doc1.getLength());
if (differs1.equals("true"))
doc1.insertString(doc1.getLength(), text1
+ ":", first.getStyle("bold"));
else
doc1.insertString(doc1.getLength(), text1
+ ":", first.getStyle("regular"));
if ((count1%3) == 0)
doc1.insertString(doc1.getLength(), "\n",
first.getStyle("regular"));
} catch (BadLocationException ble1) {
ble1.printStackTrace();
first.updateUI();
first.validate();
try {
System.out.println("Length bef: " + doc.getLength());
doc.remove(0, doc.getLength());
System.out.println("Length aft: " + doc.getLength());
second.updateUI();
second.validate();
} catch (BadLocationException ble1) {
ble1.printStackTrace();
StringTokenizer tokens = new StringTokenizer(fileContent2,
String token = "";
String text = "";
String differs = "false";
int indexOfColon = -1;
int count = 0;
while (tokens.hasMoreTokens()) {
token = (String)tokens.nextToken();
count++;
indexOfColon = token.lastIndexOf(":");
text = token.substring(0, indexOfColon);
differs = token.substring(indexOfColon + 1);
try {
if (differs.equals("true"))
doc.insertString(doc.getLength(), text +
":", second.getStyle("bold"));
else
doc.insertString(doc.getLength(), text +
":", second.getStyle("regular"));
if ((count%3) == 0)
doc.insertString(doc.getLength(), "\n",
second.getStyle("regular"));
} catch (BadLocationException ble) {
ble.printStackTrace();
second.updateUI();
second.validate();
* put your documentation comment here
* @param textPane
protected void initStylesForTextPane (JTextPane textPane) {
//Initialize some styles.
Style def = StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE);
Style regular = textPane.addStyle("regular", def);
StyleConstants.setFontFamily(def, "SansSerif");
Style s = textPane.addStyle("italic", regular);
StyleConstants.setItalic(s, true);
s = textPane.addStyle("bold", regular);
StyleConstants.setBold(s, true);
s = textPane.addStyle("small", regular);
StyleConstants.setFontSize(s, 10);
s = textPane.addStyle("large", regular);
StyleConstants.setFontSize(s, 16);
s = textPane.addStyle("icon", regular);
StyleConstants.setAlignment(s, StyleConstants.ALIGN_CENTER);
StyleConstants.setIcon(s, new ImageIcon("images/Pig.gif"));
s = textPane.addStyle("button", regular);
StyleConstants.setAlignment(s, StyleConstants.ALIGN_CENTER);
JButton button = new JButton(new ImageIcon("images/sound.gif"));
button.setMargin(new Insets(0, 0, 0, 0));
button.addActionListener(new ActionListener() {
* put your documentation comment here
* @param e
public void actionPerformed (ActionEvent e) {
Toolkit.getDefaultToolkit().beep();
StyleConstants.setComponent(s, button);
* put your documentation comment here
private void addWindowListener () {
this.addWindowListener(new WindowAdapter() {
* put your documentation comment here
* @param we
public void windowClosed (WindowEvent we) {
CheckZipFile.this.dispose();
System.exit(1);
* put your documentation comment here
* @param we
public void windowClosing (WindowEvent we) {
CheckZipFile.this.dispose();
System.exit(1);
* put your documentation comment here
* @param argv[]
* @exception Exception
public static void main (String argv[]) throws Exception {
CheckZipFile compareZip = new CheckZipFile();
compareZip.pack();
compareZip.setVisible(true);
* put your documentation comment here
public class ButtonListener
implements ActionListener {
* put your documentation comment here
* @param ae
public void actionPerformed (ActionEvent ae) {
if (ae.getSource() == chooseButton1) {
int retval = fileChooser.showDialog(CheckZipFile.this,
"Select");
if (retval == JFileChooser.APPROVE_OPTION) {
File theFile = fileChooser.getSelectedFile();
if (theFile != null) {
File[] files = fileChooser.getSelectedFiles();
if (fileChooser.isMultiSelectionEnabled()
&& files != null && files.length > 1) {
String filenames = "";
for (int i = 0; i < files.length; i++) {
filenames = filenames + "\n"
+ files.getPath();
JOptionPane.showMessageDialog(CheckZipFile.this,
"You chose these files: \n"
+ filenames + "\n Multiple Selection Should not be done here");
else if (theFile.isDirectory()) {
JOptionPane.showMessageDialog(CheckZipFile.this,
"You chose this directory: "
+ fileChooser.getSelectedFile().getPath()
+ "\n Please select a Zip File or jar File");
else {
JOptionPane.showMessageDialog(CheckZipFile.this,
"You chose this file: " +
fileChooser.getSelectedFile().getPath());
firstZipName.setText(fileChooser.getSelectedFile().getPath());
return;
else if (retval == JFileChooser.CANCEL_OPTION) {
JOptionPane.showMessageDialog(CheckZipFile.this,
"User cancelled operation. No file was chosen.");
else if (retval == JFileChooser.ERROR_OPTION) {
JOptionPane.showMessageDialog(CheckZipFile.this,
"An error occured. No file was chosen.");
else {
JOptionPane.showMessageDialog(CheckZipFile.this,
"Unknown operation occured.");
if (ae.getSource() == chooseButton2) {
int retval = fileChooser.showDialog(CheckZipFile.this,
"Select");
if (retval == JFileChooser.APPROVE_OPTION) {
File theFile = fileChooser.getSelectedFile();
if (theFile != null) {
File[] files = fileChooser.getSelectedFiles();
if (fileChooser.isMultiSelectionEnabled()
&& files != null && files.length > 1) {
String filenames = "";
for (int i = 0; i < files.length; i++) {
filenames = filenames + "\n"
+ files[i].getPath();
JOptionPane.showMessageDialog(CheckZipFile.this,
"You chose these files: \n"
+ filenames + "\n Multiple Selection Should not be done here");
else if (theFile.isDirectory()) {
JOptionPane.showMessageDialog(CheckZipFile.this,
"You chose this directory: "
+ fileChooser.getSelectedFile().getPath()
+ "\n Please select a Zip File or jar File");
else {
JOptionPane.showMessageDialog(CheckZipFile.this,
"You chose this file: " +
fileChooser.getSelectedFile().getPath());
secondZipName.setText(fileChooser.getSelectedFile().getPath());
return;
else if (retval == JFileChooser.CANCEL_OPTION) {
JOptionPane.showMessageDialog(CheckZipFile.this,
"User cancelled operation. No file was chosen.");
else if (retval == JFileChooser.ERROR_OPTION) {
JOptionPane.showMessageDialog(CheckZipFile.this,
"An error occured. No file was chosen.");
else {
JOptionPane.showMessageDialog(CheckZipFile.this,
"Unknown operation occured.");
if (ae.getSource() == compare) {
String file1 = firstZipName.getText();
String file2 = secondZipName.getText();
if (file1 == null || file2 == null) {
JOptionPane.showMessageDialog(CheckZipFile.this,
"Enter / Select the Files to be compared");
return;
if (file1.equals("") || file2.equals("")) {
JOptionPane.showMessageDialog(CheckZipFile.this,
"Enter / Select the Files to be compared");
return;
try {
ZipFile zip1 = new ZipFile(file1);
ZipFile zip2 = new ZipFile(file2);
int size1 = zip1.size();
int size2 = zip2.size();
if (size1 != size2) {
JOptionPane.showMessageDialog(CheckZipFile.this,
"Size of both the jars are not same");
return;
Enumeration entries1 = zip1.entries();
Enumeration entries2 = zip2.entries();
ZipEntry entry1 = null;
ZipEntry entry2 = null;
String name1 = "";
String name2 = "";
long filesize1 = 0;
long filesize2 = 0;
long time1;
long time2;
//StringBuffer detail = new StringBuffer();
boolean nameDiffers = false;
boolean sizeDiffers = false;
boolean timeDiffers = false;
buffer.append(file1 + "\t\t\t" + file2 +
"\n______________________________________________________________________\n");
//buffer1.append("\t\t" + file1 + "\n");
//buffer2.append("\t\t" + file2 + "\n");
int length = buffer.length();
for (int x = 0; x < size1; x++) {
nameDiffers = false;
sizeDiffers = false;
timeDiffers = false;
entry1 = (ZipEntry)entries1.nextElement();
entry2 = (ZipEntry)entries2.nextElement();
name1 = entry1.getName();
name2 = entry2.getName();
filesize1 = entry1.getSize();
filesize2 = entry2.getSize();
time1 = entry1.getTime();
time2 = entry2.getTime();
if (!name1.equals(name2)) {
//System.out.println("Name of the Entries in both the Jars are not same:\n"+ entry1.getName() + " : " + entry2.getName() );
nameDiffers = true;
//return;
//else
// System.out.println("Name: " +entry1.getName());
if (filesize1 != filesize2) {
//System.out.println("Size of the Entries in both the Jars are not same:\n"+ entry1.getSize() + " : " + entry2.getSize() );
sizeDiffers = true;
//return;
if (time1 != time2) {
//System.out.println("Time of the Entries in both the Jars are not same:\n"+ entry1.getTime() + " : " + entry2.getTime() );
timeDiffers = true;
//return;
if (nameDiffers || sizeDiffers || timeDiffers) {
if (filesize1 != 0 && filesize2 !=
0) {
buffer.append(name1 + ":" +
filesize1 + ":" + new java.util.Date(time1)
+ "\t" + name2 + ":"
+ filesize2 + ":" +
new java.util.Date(time2)
+ "\n");
buffer1.append(name1 + ":" +
nameDiffers + ";" +
filesize1 + ":" + sizeDiffers
+ ";" + new java.util.Date(time1).toString()
+ ":" + timeDiffers +
buffer2.append(name2 + ":" +
nameDiffers + ";" +
filesize2 + ":" + sizeDiffers
+ ";" + new java.util.Date(time2).toString()
+ ":" + timeDiffers +
if (length == buffer.length())
JOptionPane.showMessageDialog(CheckZipFile.this,
"Both the Zip / Jar Files are Identical");
else {
getToolkit().beep();
//System.out.println(buffer.toString());
updateGUI(buffer1.toString(), buffer2.toString());
getToolkit().beep();
} catch (Exception ex) {
ex.printStackTrace();

Comparing two files in BPEL

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