| /* |
| * Copyright (c) 1998, 2017, 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 java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.ResourceBundle; |
| import java.util.ServiceLoader; |
| |
| import com.sun.jdi.JDIPermission; |
| import com.sun.jdi.VMDisconnectedException; |
| import com.sun.jdi.VirtualMachine; |
| import com.sun.jdi.VirtualMachineManager; |
| import com.sun.jdi.connect.AttachingConnector; |
| import com.sun.jdi.connect.Connector; |
| import com.sun.jdi.connect.LaunchingConnector; |
| import com.sun.jdi.connect.ListeningConnector; |
| import com.sun.jdi.connect.spi.Connection; |
| import com.sun.jdi.connect.spi.TransportService; |
| |
| /* Public for use by com.sun.jdi.Bootstrap */ |
| public class VirtualMachineManagerImpl implements VirtualMachineManagerService { |
| private List<Connector> connectors = new ArrayList<>(); |
| private LaunchingConnector defaultConnector = null; |
| private List<VirtualMachine> targets = new ArrayList<>(); |
| private final ThreadGroup mainGroupForJDI; |
| private ResourceBundle messages = null; |
| private int vmSequenceNumber = 0; |
| private static final int majorVersion = 9; |
| private static final int minorVersion = 0; |
| |
| private static final Object lock = new Object(); |
| private static VirtualMachineManagerImpl vmm; |
| |
| public static VirtualMachineManager virtualMachineManager() { |
| SecurityManager sm = System.getSecurityManager(); |
| if (sm != null) { |
| JDIPermission vmmPermission = |
| new JDIPermission("virtualMachineManager"); |
| sm.checkPermission(vmmPermission); |
| } |
| synchronized (lock) { |
| if (vmm == null) { |
| vmm = new VirtualMachineManagerImpl(); |
| } |
| } |
| return vmm; |
| } |
| |
| protected VirtualMachineManagerImpl() { |
| |
| /* |
| * Create a top-level thread group |
| */ |
| ThreadGroup top = Thread.currentThread().getThreadGroup(); |
| ThreadGroup parent = null; |
| while ((parent = top.getParent()) != null) { |
| top = parent; |
| } |
| mainGroupForJDI = new ThreadGroup(top, "JDI main"); |
| |
| /* |
| * Load the connectors |
| */ |
| ServiceLoader<Connector> connectorLoader = |
| ServiceLoader.load(Connector.class, Connector.class.getClassLoader()); |
| |
| Iterator<Connector> connectors = connectorLoader.iterator(); |
| |
| while (connectors.hasNext()) { |
| Connector connector; |
| |
| try { |
| connector = connectors.next(); |
| } catch (ThreadDeath x) { |
| throw x; |
| } catch (Exception x) { |
| System.err.println(x); |
| continue; |
| } catch (Error x) { |
| System.err.println(x); |
| continue; |
| } |
| |
| addConnector(connector); |
| } |
| |
| /* |
| * Load any transport services and encapsulate them with |
| * an attaching and listening connector. |
| */ |
| ServiceLoader<TransportService> transportLoader = |
| ServiceLoader.load(TransportService.class, |
| TransportService.class.getClassLoader()); |
| |
| Iterator<TransportService> transportServices = |
| transportLoader.iterator(); |
| |
| while (transportServices.hasNext()) { |
| TransportService transportService; |
| |
| try { |
| transportService = transportServices.next(); |
| } catch (ThreadDeath x) { |
| throw x; |
| } catch (Exception x) { |
| System.err.println(x); |
| continue; |
| } catch (Error x) { |
| System.err.println(x); |
| continue; |
| } |
| |
| addConnector(GenericAttachingConnector.create(transportService)); |
| addConnector(GenericListeningConnector.create(transportService)); |
| } |
| |
| // no connectors found |
| if (allConnectors().size() == 0) { |
| throw new Error("no Connectors loaded"); |
| } |
| |
| // Set the default launcher. In order to be compatible |
| // 1.2/1.3/1.4 we try to make the default launcher |
| // "com.sun.jdi.CommandLineLaunch". If this connector |
| // isn't found then we arbitarly pick the first connector. |
| // |
| boolean found = false; |
| List<LaunchingConnector> launchers = launchingConnectors(); |
| for (LaunchingConnector lc: launchers) { |
| if (lc.name().equals("com.sun.jdi.CommandLineLaunch")) { |
| setDefaultConnector(lc); |
| found = true; |
| break; |
| } |
| } |
| if (!found && launchers.size() > 0) { |
| setDefaultConnector(launchers.get(0)); |
| } |
| } |
| |
| public LaunchingConnector defaultConnector() { |
| if (defaultConnector == null) { |
| throw new Error("no default LaunchingConnector"); |
| } |
| return defaultConnector; |
| } |
| |
| public void setDefaultConnector(LaunchingConnector connector) { |
| defaultConnector = connector; |
| } |
| |
| public List<LaunchingConnector> launchingConnectors() { |
| List<LaunchingConnector> launchingConnectors = new ArrayList<>(connectors.size()); |
| for (Connector connector: connectors) { |
| if (connector instanceof LaunchingConnector) { |
| launchingConnectors.add((LaunchingConnector)connector); |
| } |
| } |
| return Collections.unmodifiableList(launchingConnectors); |
| } |
| |
| public List<AttachingConnector> attachingConnectors() { |
| List<AttachingConnector> attachingConnectors = new ArrayList<>(connectors.size()); |
| for (Connector connector: connectors) { |
| if (connector instanceof AttachingConnector) { |
| attachingConnectors.add((AttachingConnector)connector); |
| } |
| } |
| return Collections.unmodifiableList(attachingConnectors); |
| } |
| |
| public List<ListeningConnector> listeningConnectors() { |
| List<ListeningConnector> listeningConnectors = new ArrayList<>(connectors.size()); |
| for (Connector connector: connectors) { |
| if (connector instanceof ListeningConnector) { |
| listeningConnectors.add((ListeningConnector)connector); |
| } |
| } |
| return Collections.unmodifiableList(listeningConnectors); |
| } |
| |
| public List<Connector> allConnectors() { |
| return Collections.unmodifiableList(connectors); |
| } |
| |
| public List<VirtualMachine> connectedVirtualMachines() { |
| return Collections.unmodifiableList(targets); |
| } |
| |
| public void addConnector(Connector connector) { |
| connectors.add(connector); |
| } |
| |
| public void removeConnector(Connector connector) { |
| connectors.remove(connector); |
| } |
| |
| public synchronized VirtualMachine createVirtualMachine( |
| Connection connection, |
| Process process) throws IOException { |
| |
| if (!connection.isOpen()) { |
| throw new IllegalStateException("connection is not open"); |
| } |
| |
| VirtualMachine vm; |
| try { |
| vm = new VirtualMachineImpl(this, connection, process, |
| ++vmSequenceNumber); |
| } catch (VMDisconnectedException e) { |
| throw new IOException(e.getMessage()); |
| } |
| targets.add(vm); |
| return vm; |
| } |
| |
| public VirtualMachine createVirtualMachine(Connection connection) throws IOException { |
| return createVirtualMachine(connection, null); |
| } |
| |
| public void addVirtualMachine(VirtualMachine vm) { |
| targets.add(vm); |
| } |
| |
| void disposeVirtualMachine(VirtualMachine vm) { |
| targets.remove(vm); |
| } |
| |
| public int majorInterfaceVersion() { |
| return majorVersion; |
| } |
| |
| public int minorInterfaceVersion() { |
| return minorVersion; |
| } |
| |
| ThreadGroup mainGroupForJDI() { |
| return mainGroupForJDI; |
| } |
| |
| String getString(String key) { |
| if (messages == null) { |
| messages = ResourceBundle.getBundle("com.sun.tools.jdi.resources.jdi"); |
| } |
| return messages.getString(key); |
| } |
| } |