public boolean readFromPacket()

in activeio-core/src/main/java/org/apache/activeio/journal/active/Record.java [203:230]

• 21 lines of code
• 4 McCabe index (conditional complexity)

    public boolean readFromPacket(Packet packet) throws IOException {
        Packet dup = packet.duplicate();

        if( dup.remaining() < RECORD_HEADER_SIZE )
            return false;
        DataInputStream is = new DataInputStream(new PacketToInputStream(dup));
        readHeader( is );
        if( dup.remaining() < payloadLength+RECORD_FOOTER_SIZE ) {
            return false;
        }
        
        // Set limit to create a slice of the payload.
        dup.limit(dup.position()+payloadLength);
        this.payload = dup.slice();        
	    if( isChecksumingEnabled() ) {
	        checksum(new DataInputStream(new PacketToInputStream(payload)));
	    }
	    
	    // restore the limit and seek to the footer.
        dup.limit(packet.limit());
        dup.position(dup.position()+payloadLength);
        readFooter(is);
        
        // If every thing went well.. advance the position of the orignal packet.
        packet.position(dup.position());
        dup.dispose();
        return true;        
    }