| /* |
| * Copyright (c) 1999, 2013, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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 com.sun.tools.jdi; |
| |
| import com.sun.tools.jdi.*; |
| import com.sun.jdi.connect.*; |
| import com.sun.jdi.connect.spi.*; |
| import com.sun.jdi.*; |
| |
| import java.util.Map; |
| import java.util.StringTokenizer; |
| import java.util.List; |
| import java.util.ArrayList; |
| import java.io.IOException; |
| import java.io.InterruptedIOException; |
| |
| abstract class AbstractLauncher extends ConnectorImpl implements LaunchingConnector { |
| |
| abstract public VirtualMachine |
| launch(Map<String,? extends Connector.Argument> arguments) |
| throws IOException, |
| IllegalConnectorArgumentsException, |
| VMStartException; |
| abstract public String name(); |
| abstract public String description(); |
| |
| ThreadGroup grp; |
| |
| AbstractLauncher() { |
| super(); |
| |
| grp = Thread.currentThread().getThreadGroup(); |
| ThreadGroup parent = null; |
| while ((parent = grp.getParent()) != null) { |
| grp = parent; |
| } |
| } |
| |
| String[] tokenizeCommand(String command, char quote) { |
| String quoteStr = String.valueOf(quote); // easier to deal with |
| |
| /* |
| * Tokenize the command, respecting the given quote character. |
| */ |
| StringTokenizer tokenizer = new StringTokenizer(command, |
| quote + " \t\r\n\f", |
| true); |
| String quoted = null; |
| String pending = null; |
| List<String> tokenList = new ArrayList<String>(); |
| while (tokenizer.hasMoreTokens()) { |
| String token = tokenizer.nextToken(); |
| if (quoted != null) { |
| if (token.equals(quoteStr)) { |
| tokenList.add(quoted); |
| quoted = null; |
| } else { |
| quoted += token; |
| } |
| } else if (pending != null) { |
| if (token.equals(quoteStr)) { |
| quoted = pending; |
| } else if ((token.length() == 1) && |
| Character.isWhitespace(token.charAt(0))) { |
| tokenList.add(pending); |
| } else { |
| throw new InternalException("Unexpected token: " + token); |
| } |
| pending = null; |
| } else { |
| if (token.equals(quoteStr)) { |
| quoted = ""; |
| } else if ((token.length() == 1) && |
| Character.isWhitespace(token.charAt(0))) { |
| // continue |
| } else { |
| pending = token; |
| } |
| } |
| } |
| |
| /* |
| * Add final token. |
| */ |
| if (pending != null) { |
| tokenList.add(pending); |
| } |
| |
| /* |
| * An unclosed quote at the end of the command. Do an |
| * implicit end quote. |
| */ |
| if (quoted != null) { |
| tokenList.add(quoted); |
| } |
| |
| String[] tokenArray = new String[tokenList.size()]; |
| for (int i = 0; i < tokenList.size(); i++) { |
| tokenArray[i] = tokenList.get(i); |
| } |
| return tokenArray; |
| } |
| |
| protected VirtualMachine launch(String[] commandArray, String address, |
| TransportService.ListenKey listenKey, |
| TransportService ts) |
| throws IOException, VMStartException { |
| Helper helper = new Helper(commandArray, address, listenKey, ts); |
| helper.launchAndAccept(); |
| |
| VirtualMachineManager manager = |
| Bootstrap.virtualMachineManager(); |
| |
| return manager.createVirtualMachine(helper.connection(), |
| helper.process()); |
| } |
| |
| /** |
| * This class simply provides a context for a single launch and |
| * accept. It provides instance fields that can be used by |
| * all threads involved. This stuff can't be in the Connector proper |
| * because the connector is a singleton and is not specific to any |
| * one launch. |
| */ |
| private class Helper { |
| private final String address; |
| private TransportService.ListenKey listenKey; |
| private TransportService ts; |
| private final String[] commandArray; |
| private Process process = null; |
| private Connection connection = null; |
| private IOException acceptException = null; |
| private boolean exited = false; |
| |
| Helper(String[] commandArray, String address, TransportService.ListenKey listenKey, |
| TransportService ts) { |
| this.commandArray = commandArray; |
| this.address = address; |
| this.listenKey = listenKey; |
| this.ts = ts; |
| } |
| |
| String commandString() { |
| String str = ""; |
| for (int i = 0; i < commandArray.length; i++) { |
| if (i > 0) { |
| str += " "; |
| } |
| str += commandArray[i]; |
| } |
| return str; |
| } |
| |
| synchronized void launchAndAccept() throws |
| IOException, VMStartException { |
| |
| process = Runtime.getRuntime().exec(commandArray); |
| |
| Thread acceptingThread = acceptConnection(); |
| Thread monitoringThread = monitorTarget(); |
| try { |
| while ((connection == null) && |
| (acceptException == null) && |
| !exited) { |
| wait(); |
| } |
| |
| if (exited) { |
| throw new VMStartException( |
| "VM initialization failed for: " + commandString(), process); |
| } |
| if (acceptException != null) { |
| // Rethrow the exception in this thread |
| throw acceptException; |
| } |
| } catch (InterruptedException e) { |
| throw new InterruptedIOException("Interrupted during accept"); |
| } finally { |
| acceptingThread.interrupt(); |
| monitoringThread.interrupt(); |
| } |
| } |
| |
| Process process() { |
| return process; |
| } |
| |
| Connection connection() { |
| return connection; |
| } |
| |
| synchronized void notifyOfExit() { |
| exited = true; |
| notify(); |
| } |
| |
| synchronized void notifyOfConnection(Connection connection) { |
| this.connection = connection; |
| notify(); |
| } |
| |
| synchronized void notifyOfAcceptException(IOException acceptException) { |
| this.acceptException = acceptException; |
| notify(); |
| } |
| |
| Thread monitorTarget() { |
| Thread thread = new Thread(grp, |
| "launched target monitor") { |
| public void run() { |
| try { |
| process.waitFor(); |
| /* |
| * Notify waiting thread of VM error termination |
| */ |
| notifyOfExit(); |
| } catch (InterruptedException e) { |
| // Connection has been established, stop monitoring |
| } |
| } |
| }; |
| thread.setDaemon(true); |
| thread.start(); |
| return thread; |
| } |
| |
| Thread acceptConnection() { |
| Thread thread = new Thread(grp, |
| "connection acceptor") { |
| public void run() { |
| try { |
| Connection connection = ts.accept(listenKey, 0, 0); |
| /* |
| * Notify waiting thread of connection |
| */ |
| notifyOfConnection(connection); |
| } catch (InterruptedIOException e) { |
| // VM terminated, stop accepting |
| } catch (IOException e) { |
| // Report any other exception to waiting thread |
| notifyOfAcceptException(e); |
| } |
| } |
| }; |
| thread.setDaemon(true); |
| thread.start(); |
| return thread; |
| } |
| } |
| } |