| /* |
| * Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package nsk.share.jdwp; |
| |
| import nsk.share.*; |
| |
| /** |
| * This class represents a JDWP command packet. |
| */ |
| public class CommandPacket extends Packet { |
| |
| /** |
| * Static counter for enumeration of the command packets. |
| */ |
| private static int nextID = 1; |
| |
| /** |
| * Return next free number for enumeration of the command packets. |
| */ |
| public static int getLastID() { |
| return (nextID - 1); |
| } |
| |
| /** |
| * Make JDWP command packet for specified command. |
| */ |
| public CommandPacket(int fullCommand) { |
| super(); |
| |
| setPacketID(nextID++); |
| setFlags(JDWP.Flag.NONE); |
| setFullCommand(fullCommand); |
| } |
| |
| /** |
| * Make JDWP command packet for specified command. |
| */ |
| public CommandPacket(int fullCommand, int id) { |
| super(); |
| |
| setPacketID(id); |
| setFlags(JDWP.Flag.NONE); |
| setFullCommand(fullCommand); |
| } |
| |
| /** |
| * Make command packet with data from the specified byte buffer. |
| */ |
| // public CommandPacket(ByteBuffer packet) { |
| public CommandPacket(Packet packet) { |
| super(packet); |
| } |
| |
| /** |
| * Return full command number for this packet. |
| */ |
| public int getFullCommand() { |
| int id = 0; |
| |
| try { |
| id = (int) getID(FullCommandOffset, 2); |
| } |
| catch (BoundException e) { |
| throw new Failure("Caught unexpected exception while getting command number from header:\n\t" |
| + e); |
| } |
| |
| return id; |
| } |
| |
| /** |
| * Return short command number for this packet. |
| */ |
| public byte getCommand() { |
| byte id = 0; |
| |
| try { |
| id = getByte(CommandOffset); |
| } |
| catch (BoundException e) { |
| throw new Failure("Caught unexpected exception while getting command number from header:\n\t" |
| + e); |
| } |
| |
| return id; |
| } |
| |
| /** |
| * Return command set number for this packet. |
| */ |
| public byte getCommandSet() { |
| byte id = 0; |
| |
| try { |
| id = getByte(CommandSetOffset); |
| } |
| catch (BoundException e) { |
| throw new Failure("Caught unexpected exception while getting command number from header:\n\t" |
| + e); |
| } |
| |
| return id; |
| } |
| |
| /** |
| * Assign command number for this packet. |
| */ |
| public void setFullCommand(int fullCommand) { |
| try { |
| putID(FullCommandOffset, fullCommand, 2); |
| } |
| catch (BoundException e) { |
| throw new Failure("Caught unexpected exception while setting command number into header: " |
| + e); |
| } |
| } |
| |
| /** |
| * Return string representation of the command packet header. |
| */ |
| public String headerToString() { |
| return super.headerToString() |
| + " " + toHexString(CommandSetOffset, 4) + " (cmd set): 0x" + toHexDecString(getCommandSet(), 2) + "\n" |
| + " " + toHexString(CommandOffset, 4) + " (command): 0x" + toHexDecString(getCommand(), 2) + "\n"; |
| } |
| |
| } |