72 lines
2.3 KiB
Java
72 lines
2.3 KiB
Java
/*
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* Copyright (c) 2016, 2021, 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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import java.io.IOException;
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import java.io.InputStream;
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import java.net.Socket;
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import java.util.Arrays;
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/**
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* JDWP socket transport
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*/
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public class JdwpChannel {
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private Socket sock;
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public void connect(int jdwpPort) throws IOException {
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sock = new Socket("localhost", jdwpPort);
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handshake();
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}
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/**
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* Sends JDWP handshake and verifies the reply
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* @throws IOException
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*/
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private void handshake() throws IOException {
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final byte[] HANDSHAKE = "JDWP-Handshake".getBytes();
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sock.getOutputStream().write(HANDSHAKE, 0, HANDSHAKE.length);
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byte[] reply = new byte[14];
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sock.getInputStream().read(reply, 0, 14);
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if (!Arrays.equals(HANDSHAKE, reply)) {
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throw new RuntimeException("Error during handshake. Reply was: " + new String(reply) + " expected " + new String(HANDSHAKE));
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}
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}
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public void disconnect() {
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try {
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sock.close();
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} catch (IOException x) {
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}
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}
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public void write(byte[] data, int length) throws IOException {
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sock.getOutputStream().write(data, 0, length);
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}
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public InputStream getInputStream() throws IOException {
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return sock.getInputStream();
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}
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}
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