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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package proguard.io;
import proguard.util.ExtensionMatcher;
import java.io.*;
/**
* This DataEntryReader writes the ZIP entries and files that it reads to a
* given DataEntryWriter.
*
* @author Eric Lafortune
*/
public class DataEntryCopier implements DataEntryReader
{
private static final int BUFFER_SIZE = 1024;
private final DataEntryWriter dataEntryWriter;
private final byte[] buffer = new byte[BUFFER_SIZE];
public DataEntryCopier(DataEntryWriter dataEntryWriter)
{
this.dataEntryWriter = dataEntryWriter;
}
// Implementations for DataEntryReader.
public void read(DataEntry dataEntry) throws IOException
{
try
{
if (dataEntry.isDirectory())
{
dataEntryWriter.createDirectory(dataEntry);
}
else
{
// Get the output entry corresponding to this input entry.
OutputStream outputStream = dataEntryWriter.getOutputStream(dataEntry);
if (outputStream != null)
{
InputStream inputStream = dataEntry.getInputStream();
try
{
// Copy the data from the input entry to the output entry.
copyData(inputStream, outputStream);
}
finally
{
// Close the data entries.
dataEntry.closeInputStream();
}
}
}
}
catch (IOException ex)
{
System.err.println("Warning: can't write resource [" + dataEntry.getName() + "] (" + ex.getMessage() + ")");
}
catch (Exception ex)
{
throw (IOException)new IOException("Can't write resource ["+dataEntry.getName()+"] ("+ex.getMessage()+")").initCause(ex);
}
}
/**
* Copies all data that it can read from the given input stream to the
* given output stream.
*/
protected void copyData(InputStream inputStream,
OutputStream outputStream)
throws IOException
{
while (true)
{
int count = inputStream.read(buffer);
if (count < 0)
{
break;
}
outputStream.write(buffer, 0, count);
}
outputStream.flush();
}
/**
* A main method for testing file/jar/war/directory copying.
*/
public static void main(String[] args)
{
try
{
String input = args[0];
String output = args[1];
boolean outputIsJar = output.endsWith(".jar");
boolean outputIsWar = output.endsWith(".war");
boolean outputIsEar = output.endsWith(".ear");
boolean outputIsZip = output.endsWith(".zip");
DataEntryWriter writer = new DirectoryWriter(new File(output),
outputIsJar ||
outputIsWar ||
outputIsEar ||
outputIsZip);
if (!outputIsJar)
{
// Zip up any zips, if necessary.
DataEntryWriter zipWriter = new JarWriter(writer);
if (outputIsZip)
{
// Always zip.
writer = zipWriter;
}
else
{
// Only zip up zips.
writer = new FilteredDataEntryWriter(new DataEntryParentFilter(
new DataEntryNameFilter(
new ExtensionMatcher(".zip"))),
zipWriter,
writer);
}
// Zip up any wars, if necessary.
DataEntryWriter warWriter = new JarWriter(writer);
if (outputIsWar)
{
// Always zip.
writer = warWriter;
}
else
{
// Only zip up wars.
writer = new FilteredDataEntryWriter(new DataEntryParentFilter(
new DataEntryNameFilter(
new ExtensionMatcher(".war"))),
warWriter,
writer);
}
}
// Zip up any jars, if necessary.
DataEntryWriter jarWriter = new JarWriter(writer);
if (outputIsJar)
{
// Always zip.
writer = jarWriter;
}
else
{
// Only zip up jars.
writer = new FilteredDataEntryWriter(new DataEntryParentFilter(
new DataEntryNameFilter(
new ExtensionMatcher(".jar"))),
jarWriter,
writer);
}
// Create the copying DataEntryReader.
DataEntryReader reader = new DataEntryCopier(writer);
boolean inputIsJar = input.endsWith(".jar");
boolean inputIsWar = input.endsWith(".war");
boolean inputIsZip = input.endsWith(".zip");
// Unzip any jars, if necessary.
DataEntryReader jarReader = new JarReader(reader);
if (inputIsJar)
{
// Always unzip.
reader = jarReader;
}
else
{
// Only unzip jar entries.
reader = new FilteredDataEntryReader(new DataEntryNameFilter(
new ExtensionMatcher(".jar")),
jarReader,
reader);
// Unzip any wars, if necessary.
DataEntryReader warReader = new JarReader(reader);
if (inputIsWar)
{
// Always unzip.
reader = warReader;
}
else
{
// Only unzip war entries.
reader = new FilteredDataEntryReader(new DataEntryNameFilter(
new ExtensionMatcher(".war")),
warReader,
reader);
}
// Unzip any zips, if necessary.
DataEntryReader zipReader = new JarReader(reader);
if (inputIsZip)
{
// Always unzip.
reader = zipReader;
}
else
{
// Only unzip zip entries.
reader = new FilteredDataEntryReader(new DataEntryNameFilter(
new ExtensionMatcher(".zip")),
zipReader,
reader);
}
}
DirectoryPump directoryReader = new DirectoryPump(new File(input));
directoryReader.pumpDataEntries(reader);
writer.close();
}
catch (Exception ex)
{
ex.printStackTrace();
}
}
}
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