com.sun.enterprise.util.zip.ZipWriter Maven / Gradle / Ivy
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/* Byron Nevins, April 2000
* ZipFile -- A utility class for exploding jar files that contain EJB(s). Used *only* in this package by the EJBImporter class
*/
package com.sun.enterprise.util.zip;
import java.io.*;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.*;
import java.util.zip.*;
import com.sun.enterprise.util.io.FileListerRelative;
public class ZipWriter
{
public ZipWriter(String zipFilename, String dirName) throws ZipFileException
{
init(zipFilename, dirName);
createItemList(null);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
public ZipWriter(String zipFilename, String dirName, ZipItem[] theItems) throws ZipFileException
{
items = theItems;
init(zipFilename, dirName);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
public ZipWriter(String zipFilename, String dirName, String[] fileList) throws ZipFileException
{
init(zipFilename, dirName);
createItemList(fileList);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
public ZipWriter(OutputStream outStream, String dirName, String[] fileList) throws ZipFileException
{
init(outStream, dirName);
createItemList(fileList);
}
/**
* Exclude any files that are under these directories.
* E.g. suppose you have C:/temp/x1, C:/temp/x2 and C:/temp/x3
* and the root is set to c:temp. Thhen to exclude the contents of the second
* 2 dirs you would send in a String array with "x2" and "x3"
* @param dirs an array of top-level directory names
*/
public void excludeDirs(String[] dirs) {
// make sure the names all end with "/"
for(int i = 0; i < dirs.length; i++) {
if(!dirs[i].endsWith("/"))
dirs[i] += "/";
}
// copy all the items we will retain into list
List list = new ArrayList(items.length);
for(int i = 0; i < items.length; i++) {
boolean exclude = false;
for(int j = 0; j < dirs.length; j++) {
if(items[i].name.startsWith(dirs[j]))
exclude = true;
}
if (!exclude) {
list.add(items[i]);
}
}
// reset items to the pruned list
if(list.size() != items.length) {
items = new ZipItem[list.size()];
items = list.toArray(items);
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
private void init(String outFileName, String dirName) throws ZipFileException
{
try
{
init(new FileOutputStream(outFileName), dirName);
}
catch(Exception e)
{
throw new ZipFileException(e);
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
private void init(OutputStream outStream, String dirName) throws ZipFileException
{
try
{
if(dirName == null)
throw new IllegalArgumentException("null dirName");
//make sure it's really a directory
File f = new File(dirName);
if(!f.exists())
throw new ZipFileException("directory (" + dirName + ") doesn't exist");
if(!f.isDirectory())
throw new ZipFileException(dirName + " is not a directory");
// change the filename to be full-path & UNIX style
try
{
dirName = f.getCanonicalPath();
}
catch(IOException e)
{
dirName = f.getAbsolutePath();
}
dirName = dirName.replace('\\', '/'); // all UNIX-style filenames...
// we need the dirname to end in a '/'
if(!dirName.endsWith("/"))
dirName += "/";
this.dirName = dirName;
zipStream = new ZipOutputStream(outStream);
}
catch(ZipFileException zfe)
{
throw zfe;
}
catch(Throwable t)
{
throw new ZipFileException(t);
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Does not throw an exception when there is a duplicate zip entry.
*
* @throws ZipFileException if an error while creating the archive
*/
public void safeWrite() throws ZipFileException
{
try
{
for(int i = 0; i < items.length; i++)
{
try
{
addEntry(items[i]);
}
catch (ZipException e)
{
// ignore - duplicate zip entry
}
}
zipStream.close();
}
catch(ZipFileException z)
{
throw z;
}
catch(Exception e)
{
throw new ZipFileException(e);
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
public void write() throws ZipFileException
{
try
{
for(int i = 0; i < items.length; i++)
{
addEntry(items[i]);
}
zipStream.close();
}
catch(ZipFileException z)
{
throw z;
}
catch(Exception e)
{
throw new ZipFileException(e);
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
private void addEntry(ZipItem item) throws ZipFileException, IOException
{
int totalBytes = 0;
ZipEntry ze = new ZipEntry(item.name);
zipStream.putNextEntry(ze);
if(!item.name.endsWith("/"))
{
FileInputStream in = new FileInputStream(item.file);
for(int numBytes = in.read(buffer); numBytes > 0; numBytes = in.read(buffer))
{
zipStream.write(buffer, 0, numBytes);
totalBytes += numBytes;
}
in.close();
}
zipStream.closeEntry();
Logger.getAnonymousLogger().finer("Wrote " + item.name + " to Zip File. Wrote " + totalBytes + " bytes.");
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
private void createItemList(String[] files) throws ZipFileException
{
try
{
if(files == null)
{
FileListerRelative lister = new FileListerRelative(new File(dirName));
files = lister.getFiles();
}
if(files.length <= 0)
throw new ZipFileException("No files to add!");
items = new ZipItem[files.length];
for(int i = 0; i < files.length; i++)
{
File f = new File(dirName + files[i]);
items[i] = new ZipItem(f, files[i].replace('\\', '/')); // just in case...
// bnevins -- add a trailing "/" to empty directories
if(f.isDirectory())
items[i].name += "/";
}
}
catch(Throwable t)
{
throw new ZipFileException(t);
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
String getDirName()
{
return dirName;
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
private static void usage()
{
System.out.println("usage: java com.elf.util.zip.ZipWriter zip-filename directory-name");
System.exit(1);
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
public static void main(String[] args)
{
if(args == null || args.length != 2)
usage();
try
{
ZipWriter zw = new ZipWriter(args[0], args[1]);
zw.write();
}
catch(ZipFileException e)
{
System.exit(0);
}
}
/////////////////////////////////////////////////////////////////////////////////////////
//private String zipFilename = null;
private String dirName = null;
private ZipOutputStream zipStream = null;
private byte[] buffer = new byte[16384];
private ZipItem[] items = null;
}
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