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import java.io.*;
import java.util.*;
import java.util.zip.*;
public class ZipTools
{
static public final int BUFFER_SIZE = 2048;
static public final void zip(File destination, File ...sources)
throws FileNotFoundException, IOException
{
if(destination.exists())
{
destination.delete();
}
destination.createNewFile();
FileOutputStream fos = new FileOutputStream(destination);
ZipOutputStream zos = new ZipOutputStream(fos);
for(File file : sources)
{
if(file.isDirectory())
{
add(zos, file.getName() + "/", file);
}
else
{
FileInputStream fis = new FileInputStream(file);
ZipEntry entry = new ZipEntry(file.getName());
zos.putNextEntry(entry);
byte[] buffer = new byte[BUFFER_SIZE];
int nbData;
while(fis.available() > 0)
{
nbData = fis.read(buffer);
zos.write(buffer, 0, ((nbData > BUFFER_SIZE) ? BUFFER_SIZE : nbData));
}
fis.close();
}
}
zos.close();
fos.close();
}
static public final void add(ZipOutputStream zos, String entryPath, File source)
throws FileNotFoundException, IOException
{
for(File file : source.listFiles())
{
if(file.isDirectory())
{
add(zos, entryPath + file.getName() + "/", file);
}
else
{
FileInputStream fis = new FileInputStream(file);
ZipEntry entry = new ZipEntry(entryPath + file.getName());
zos.putNextEntry(entry);
byte[] buffer = new byte[BUFFER_SIZE];
int nbData;
while((nbData = fis.available()) > 0)
{
fis.read(buffer);
zos.write(buffer, 0, ((nbData > BUFFER_SIZE) ? BUFFER_SIZE : nbData));
}
fis.close();
}
}
}
static public final void unzip(ZipFile zipfile)
throws IOException
{
File file = new File("gcp.tmp");
String path = file.getAbsolutePath();
path = path.substring(0, path.lastIndexOf(File.separatorChar));
unzip(zipfile, path);
}
static public final void unzip(ZipFile zipfile, String destinationPath)
throws IOException
{
Enumeration entries = zipfile.entries();
ZipEntry entry;
while (entries.hasMoreElements())
{
entry = (ZipEntry) entries.nextElement();
extractZipEntry(zipfile, entry, destinationPath);
}
}
static public final boolean extractZipEntry(ZipFile zipfile,
ZipEntry entry,
String destinationPath)
throws IOException
{
return extractZipEntry(zipfile, entry, destinationPath, true);
}
static public final boolean extractZipEntry(ZipFile zipfile,
ZipEntry entry,
String destinationPath,
boolean force)
throws IOException
{
String entryPath = entry.getName();
entryPath = entryPath.replace('/', File.separatorChar);
File entryFile = new File(destinationPath +
File.separatorChar +
entryPath);
if(entryFile.exists())
{
if(force)
{
entryFile.delete();
}
else
{
return false;
}
}
String fileName = entryFile.getName();
new File(entryFile.getParent()).mkdirs();
entryFile.createNewFile();
InputStream is = zipfile.getInputStream(entry);
FileOutputStream fos = new FileOutputStream(entryFile);
byte[] buffer = new byte[BUFFER_SIZE];
int nbData = 0;
while(is.available() > 0)
{
nbData = is.read(buffer);
fos.write(buffer, 0,
((nbData > BUFFER_SIZE) ? BUFFER_SIZE : nbData));
}
fos.flush();
fos.close();
is.close();
return true;
}
} |
