Question

I am able to zip files contained in a particular folder. This is the code that I have used:

public class Compress { 
 private static final int BUFFER = 2048; 

private String[] _files; 
private String _zipFile; 

public Compress(String[] files, String zipFile) { 
_files = files; 
_zipFile = zipFile; 
} 

public void zip() { 
try  { 
  BufferedInputStream origin = null; 
  FileOutputStream dest = new FileOutputStream(_zipFile); 

  ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(dest)); 

  byte data[] = new byte[BUFFER]; 

  for(int i=0; i < _files.length; i++) { 
    Log.v("Compress", "Adding: " + _files[i]); 
    FileInputStream fi = new FileInputStream(_files[i]); 
    origin = new BufferedInputStream(fi, BUFFER); 
    ZipEntry entry = new ZipEntry(_files[i].substring(_files[i].lastIndexOf("/") + 1)); 
    out.putNextEntry(entry); 
    int count; 
    while ((count = origin.read(data, 0, BUFFER)) != -1) { 
      out.write(data, 0, count); 
    } 
    origin.close(); 
  } 

  out.close(); 
} catch(Exception e) { 
  e.printStackTrace(); 
} 

} 

} 

I’m calling this class in this way in another class:

String[] files = {mainFolderPath+"/text1.txt", mainFolderPath+ "/text2.txt", mainFolderPath +"/NewFolder"};
        Compress compress = new Compress(files, sourceFile.getAbsolutePath());
        compress.zip();

On running the application I’m getting an IOException.

Could you please tell me how to zip the “NewFolder” which contains another text file along with the text files “text1.txt” and “text2.txt”?

Thank you.

Answer 1

I got the solution for my question ie; zipping only the contents of a particular folder which includes a folder along with some text files. This is the code:

public class Compress {

private static final int BUFFER = 2048;
private String[] _files;
private String _zipFile;

public Compress(String[] files, String zipFile) {

            _files = files;
            _zipFile = zipFile;
}

public void zip() {


    try {
        BufferedInputStream origin = null;
        FileOutputStream dest = new FileOutputStream(_zipFile);

        ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(
                dest));

        byte data[] = new byte[BUFFER];

        for (int i = 0; i < _files.length; i++) {
            Log.v("Compress", "Adding: " + _files[i]);
            String name =  _files[i];
            File f = new File( _files[i]);
            if (f.isDirectory()) {
                name = name.endsWith("/") ? name : name + "/";

                for (String file : f.list()) {
                    System.out.println(" checking " + file);
                    System.out
                            .println("The folder name is: " + f.getName());
                    out.putNextEntry(new ZipEntry(f.getName() + "/" + file));
                    FileInputStream fi = new FileInputStream( _files[i]
                            + "/" + file);
                    origin = new BufferedInputStream(fi, BUFFER);
                    int count;
                    while ((count = origin.read(data, 0, BUFFER)) != -1) {
                        out.write(data, 0, count);
                    }
                    origin.close();
                }
                System.out.println(" checking folder" + name);
            } else {
                FileInputStream fi = new FileInputStream( _files[i]);
                origin = new BufferedInputStream(fi, BUFFER);
                ZipEntry entry = new ZipEntry( _files[i].substring( _files[i]
                        .lastIndexOf("/") + 1));
                out.putNextEntry(entry);
                int count;
                while ((count = origin.read(data, 0, BUFFER)) != -1) {
                    out.write(data, 0, count);
                }
                origin.close();
            }
        }

        out.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

}