149 lines
4.7 KiB
Java
149 lines
4.7 KiB
Java
/*
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* Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package nsk.share.jdwp;
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import nsk.share.*;
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import java.util.Vector;
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/**
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* This class represents a JDWP reply packet.
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*/
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public class ReplyPacket extends Packet {
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/** Error code constant. */
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// public final static int errOk = JDWP.Error.NONE;
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/** Error code constant. */
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// public final static int errWrongPacketSize = 0x400;
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/** Error code constant. */
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// public final static int errNotAvailable = 0x401;
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/** Error code constant. */
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// public final static int errEvent = 0x4064;
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/**
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* Make empty reply packet.
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*/
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public ReplyPacket() {
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super();
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}
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/**
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* Make reply packet with data from the specified byte buffer.
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*/
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// public ReplyPacket(ByteBuffer packet) {
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public ReplyPacket(Packet packet) {
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super(packet);
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}
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/**
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* Return value of the "error code" field of JDWP reply packet.
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*/
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public int getErrorCode() {
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int err = 0;
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try {
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err = (int) getID(ErrorCodeOffset, 2);
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}
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catch (BoundException e) {
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throw new Failure("Caught unexpected exception while getting error code from header:\n\t"
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+ e);
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}
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return err;
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}
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/**
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* Set value of the "error code" field of JDWP reply packet.
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*/
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public void setErrorCode(long err) {
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try {
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putID(ErrorCodeOffset, err, 2);
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}
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catch (BoundException e) {
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throw new Failure("Caught unexpected exception while setting error code into header:\n\t"
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+ e);
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}
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}
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/**
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* Check reply packet header.
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* This method check if reply packet has valid values in the header fields.
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*
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* @throws PacketFormatException if packet header fields have error or invalid values
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*/
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/*
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protected void checkHeaderForReplyOrEvent() throws PacketFormatException {
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super.checkHeader();
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}
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*/
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/**
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* Check reply packet header.
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* This method check if reply packet has valid values in the header fields.
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*
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* @throws PacketFormatException if packet header fields have error or invalid values
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*/
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public void checkHeader() throws PacketFormatException {
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// checkHeaderForReplyOrEvent();
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super.checkHeader();
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if (getFlags() != JDWP.Flag.REPLY_PACKET) {
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throw new PacketFormatException("Unexpected flags in reply packet header: "
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+ "0x" + toHexDecString(getFlags(), 2));
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}
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if (getErrorCode() != JDWP.Error.NONE) {
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throw new PacketFormatException("Unexpected error code in reply packet header: "
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+ "0x" + toHexDecString(getErrorCode(), 4));
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}
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}
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/**
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* Check reply packet header for specified reply ID.
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* This method check if reply packet has valid values in the header fields.
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*
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* @throws PacketFormatException if packet header fields have error or invalid values
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*/
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public void checkHeader(int id) throws PacketFormatException {
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checkHeader();
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if (getPacketID() != id) {
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throw new PacketFormatException("Unexpected ID in reply packet header: "
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+ getPacketID());
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}
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}
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/**
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* Return string representation of the reply packet header.
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*/
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public String headerToString() {
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String s;
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if (getFlags() == 0)
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s = " (command)";
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else
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s = " (error) ";
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return super.headerToString()
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+ " " + toHexString(CommandOffset, 4) + s + ": 0x" + toHexDecString(getErrorCode(), 4) + "\n";
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}
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}
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