/*
* 21.04.2004 Original verion. davagin@udm.ru.
*-----------------------------------------------------------------------
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*----------------------------------------------------------------------
*/
package davaguine.jmac.tools;
import java.io.DataInput;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
/**
* Author: Dmitry Vaguine
* Date: 04.03.2004
* Time: 14:51:31
*/
public abstract class File implements DataInput {
public static File createFile(final String name, final String mode) throws IOException {
URL url = null;
try {
url = new URL(name);
return new InputStreamFile(url);
} catch (MalformedURLException e) {
return new RandomAccessFile(new java.io.File(name), mode);
}
}
public abstract void mark(int readlimit) throws IOException;
public abstract void reset() throws IOException;
public abstract int read() throws IOException;
public short readShortBack() throws IOException {
return (short) (read() | (read() << 8));
}
public int readIntBack() throws IOException {
return read() | (read() << 8) | (read() << 16) | (read() << 24);
}
public long readLongBack() throws IOException {
return read() |
(read() << 8) |
(read() << 16) |
(read() << 24) |
(read() << 32) |
(read() << 40) |
(read() << 48) |
(read() << 56);
}
public abstract int read(byte[] b) throws IOException;
public abstract int read(byte[] b, int offs, int len) throws IOException;
public abstract void readFully(byte[] b) throws IOException;
public abstract void readFully(byte[] b, int offs, int len) throws IOException;
public abstract void close() throws IOException;
public abstract boolean readBoolean() throws IOException;
public abstract byte readByte() throws IOException;
public abstract char readChar() throws IOException;
public abstract double readDouble() throws IOException;
public abstract float readFloat() throws IOException;
public abstract int readInt() throws IOException;
public abstract String readLine() throws IOException;
public abstract long readLong() throws IOException;
public abstract short readShort() throws IOException;
public abstract int readUnsignedByte() throws IOException;
public abstract int readUnsignedShort() throws IOException;
public abstract String readUTF() throws IOException;
public abstract int skipBytes(int n) throws IOException;
public abstract long length() throws IOException;
public abstract void seek(long pos) throws IOException;
public abstract long getFilePointer() throws IOException;
public abstract void setLength(long newLength) throws IOException;
public void write(byte[] b) throws IOException {
write(b, 0, b.length);
}
public abstract void write(byte[] b, int off, int len) throws IOException;
public abstract boolean isLocal();
public abstract String getFilename();
public String getExtension() {
final String filename = getFilename();
int index = filename.lastIndexOf('.');
return index >= 0 ? filename.substring(index) : "";
}
}