int write()

in src/main/java/com/pastdev/jsch/nio/file/UnixSshFileSystemProvider.java [713:743]

• 29 lines of code
• 3 McCabe index (conditional complexity)

    int write( UnixSshPath path, long startIndex, ByteBuffer bytes ) throws IOException {
        int bytesPosition = bytes.position();
        // TODO cache this buffer for reuse
        ByteBuffer temp = ByteBuffer.allocateDirect( bytes.limit() - bytesPosition );
        temp.put( bytes );
        bytes.position( bytesPosition );

        String command = path.getFileSystem().getCommand( "dd" )
                + " conv=notrunc bs=1 seek=" + startIndex
                + " of=" + path.toAbsolutePath().quotedString();
        ChannelExecWrapper sshChannel = null;
        int written = 0;
        try {
            sshChannel = path.getFileSystem().getCommandRunner().open( command );
            try (OutputStream out = sshChannel.getOutputStream()) {
                WritableByteChannel outChannel = Channels.newChannel( out );
                temp.flip();
                written = outChannel.write( temp );
            }
            if ( written > 0 ) {
                bytes.position( bytesPosition + written );
            }
        }
        finally {
            int exitCode = sshChannel.close();
            if ( exitCode != 0 ) {
                throw new IOException( "dd failed " + exitCode );
            }
        }
        return written;
    }