package org.uberfire.java.nio.base;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import org.uberfire.java.nio.IOException;
import org.uberfire.java.nio.channels.SeekableByteChannel;
import static org.uberfire.commons.validation.Preconditions.*;
/**
*
*/
public class SeekableByteChannelFileBasedImpl
implements SeekableByteChannel {
private final FileChannel channel;
public SeekableByteChannelFileBasedImpl( final FileChannel channel ) {
this.channel = checkNotNull( "channel", channel );
}
@Override
public long position() throws IOException {
try {
return channel.position();
} catch ( java.io.IOException e ) {
throw new IOException( e );
}
}
@Override
public SeekableByteChannel position( final long newPosition ) throws IOException {
try {
channel.position( newPosition );
return this;
} catch ( java.io.IOException e ) {
throw new IOException( e );
}
}
@Override
public long size() throws IOException {
try {
return channel.size();
} catch ( java.io.IOException e ) {
throw new IOException( e );
}
}
@Override
public SeekableByteChannel truncate( final long size ) throws IOException {
try {
channel.truncate( size );
return this;
} catch ( java.io.IOException e ) {
throw new IOException( e );
}
}
@Override
public int read( final ByteBuffer dst ) throws java.io.IOException {
try {
return channel.read( dst );
} catch ( java.io.IOException e ) {
throw new IOException( e );
}
}
@Override
public int write( final ByteBuffer src ) throws java.io.IOException {
try {
return channel.write( src );
} catch ( java.io.IOException e ) {
throw new IOException( e );
}
}
@Override
public boolean isOpen() {
return channel.isOpen();
}
@Override
public void close() throws java.io.IOException {
try {
channel.close();
} catch ( java.io.IOException e ) {
throw new IOException( e );
}
}
}