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/*
* 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.*;
import java.util.Vector;
/**
* This class represents a JDWP reply packet.
*/
public class ReplyPacket extends Packet {
/** Error code constant. */
// public final static int errOk = JDWP.Error.NONE;
/** Error code constant. */
// public final static int errWrongPacketSize = 0x400;
/** Error code constant. */
// public final static int errNotAvailable = 0x401;
/** Error code constant. */
// public final static int errEvent = 0x4064;
/**
* Make empty reply packet.
*/
public ReplyPacket() {
super();
}
/**
* Make reply packet with data from the specified byte buffer.
*/
// public ReplyPacket(ByteBuffer packet) {
public ReplyPacket(Packet packet) {
super(packet);
}
/**
* Return value of the "error code" field of JDWP reply packet.
*/
public int getErrorCode() {
int err = 0;
try {
err = (int) getID(ErrorCodeOffset, 2);
}
catch (BoundException e) {
throw new Failure("Caught unexpected exception while getting error code from header:\n\t"
+ e);
}
return err;
}
/**
* Set value of the "error code" field of JDWP reply packet.
*/
public void setErrorCode(long err) {
try {
putID(ErrorCodeOffset, err, 2);
}
catch (BoundException e) {
throw new Failure("Caught unexpected exception while setting error code into header:\n\t"
+ e);
}
}
/**
* Check reply packet header.
* This method check if reply packet has valid values in the header fields.
*
* @throws PacketFormatException if packet header fields have error or invalid values
*/
/*
protected void checkHeaderForReplyOrEvent() throws PacketFormatException {
super.checkHeader();
}
*/
/**
* Check reply packet header.
* This method check if reply packet has valid values in the header fields.
*
* @throws PacketFormatException if packet header fields have error or invalid values
*/
public void checkHeader() throws PacketFormatException {
// checkHeaderForReplyOrEvent();
super.checkHeader();
if (getFlags() != JDWP.Flag.REPLY_PACKET) {
throw new PacketFormatException("Unexpected flags in reply packet header: "
+ "0x" + toHexDecString(getFlags(), 2));
}
if (getErrorCode() != JDWP.Error.NONE) {
throw new PacketFormatException("Unexpected error code in reply packet header: "
+ "0x" + toHexDecString(getErrorCode(), 4));
}
}
/**
* Check reply packet header for specified reply ID.
* This method check if reply packet has valid values in the header fields.
*
* @throws PacketFormatException if packet header fields have error or invalid values
*/
public void checkHeader(int id) throws PacketFormatException {
checkHeader();
if (getPacketID() != id) {
throw new PacketFormatException("Unexpected ID in reply packet header: "
+ getPacketID());
}
}
/**
* Return string representation of the reply packet header.
*/
public String headerToString() {
String s;
if (getFlags() == 0)
s = " (command)";
else
s = " (error) ";
return super.headerToString()
+ " " + toHexString(CommandOffset, 4) + s + ": 0x" + toHexDecString(getErrorCode(), 4) + "\n";
}
}
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