| /* |
| * Copyright (c) 2016 Audi AG |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| */ |
| |
| package org.eclipse.mdm.mdfsorter.mdf4; |
| |
| import java.io.IOException; |
| |
| import org.eclipse.mdm.mdfsorter.MDFParser; |
| |
| /** |
| * The Header List Block HLBLOCK, list header for a datalist (DLBLOCK), |
| * containing compressed DZBLOCKS |
| * |
| * @author Tobias Leemann |
| * |
| */ |
| public class HLBLOCK extends MDF4GenBlock { |
| |
| /** Data section */ |
| |
| // flags of this HLBLOCK, BIT0 = equallength flag, must be equal for all |
| // DLBLOCKS in the list |
| // UINT16 |
| private int flags; |
| |
| // Zip algorithm used to compress the data (0=Deflate; 1=Transpose and |
| // Deflate) |
| // UINT8 |
| private byte ziptype; |
| |
| public HLBLOCK() { |
| super(0); |
| setId("##HL"); |
| setLinkCount(1); |
| setLength(40L); |
| } |
| |
| /** |
| * Parse a HLBLOCK from an existing MDFGenBlock |
| * |
| * @param parent |
| * The already existing MDF Generic Block. |
| */ |
| public HLBLOCK(MDF4GenBlock parent) { |
| super(parent.getPos()); |
| setLength(parent.getLength()); |
| setLinkCount(parent.getLinkCount()); |
| setId(parent.getId()); |
| setLinks(parent.getLinks()); |
| parent.setPrec(this); |
| } |
| |
| public int getFlags() { |
| return flags; |
| } |
| |
| public void setFlags(int flags) { |
| this.flags = flags; |
| } |
| |
| public byte getZiptype() { |
| return ziptype; |
| } |
| |
| public void setZiptype(byte ziptype) { |
| this.ziptype = ziptype; |
| } |
| |
| public MDF4GenBlock getLnkDlFirst() { |
| return links[0]; |
| } |
| |
| public boolean isEquallength() { |
| return (flags & (byte) 1) != 0; |
| } |
| |
| @Override |
| public void parse(byte[] content) throws IOException { |
| setFlags(MDF4Util.readUInt16(MDFParser.getDataBuffer(content, 0, 2))); |
| setZiptype(MDF4Util.readUInt8(MDFParser.getDataBuffer(content, 2, 3))); |
| } |
| |
| @Override |
| public byte[] getBodyBytes() throws IOException { |
| int arraylen = 8; |
| |
| byte[] ret = new byte[arraylen]; |
| |
| byte[] hl_flags = MDF4Util.getBytesUInt16(flags); |
| System.arraycopy(hl_flags, 0, ret, 0, 2); |
| |
| ret[3] = ziptype; |
| |
| return ret; |
| } |
| |
| } |