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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 java.io.*;
/**
* This interface provides methods for writing data entries, such as ZIP entries
* or files. The implementation determines to which type of data entry the
* data will be written.
*
* @author Eric Lafortune
*/
public interface DataEntryWriter
{
/**
* Creates a directory.
* @param dataEntry the data entry for which the directory is to be created.
* @return whether the directory has been created.
*/
public boolean createDirectory(DataEntry dataEntry) throws IOException;
/**
* Returns an output stream for writing data. The caller must not close
* the output stream; closing the output stream is the responsibility of
* the implementation of this interface.
* @param dataEntry the data entry for which the output stream is to be created.
* @return the output stream. The stream may be <code>null</code> to indicate
* that the data entry should not be written.
*/
public OutputStream getOutputStream(DataEntry dataEntry) throws IOException;
/**
* Returns an output stream for writing data. The caller must not close
* the output stream; closing the output stream is the responsibility of
* the implementation of this interface.
* @param dataEntry the data entry for which the output stream is to be created.
* @param finisher the optional finisher that will be called before this
* class closes the output stream (at some later point in
* time) that will be returned (now).
* @return the output stream. The stream may be <code>null</code> to indicate
* that the data entry should not be written.
*/
public OutputStream getOutputStream(DataEntry dataEntry,
Finisher finisher) throws IOException;
/**
* Finishes writing all data entries.
*/
public void close() throws IOException;
}
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