| /* |
| * Copyright (c) 2005, 2014, 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 sun.tools.jconsole; |
| |
| import java.util.*; |
| import java.io.IOException; |
| import java.io.File; |
| |
| import com.sun.tools.attach.VirtualMachine; |
| import com.sun.tools.attach.VirtualMachineDescriptor; |
| import com.sun.tools.attach.AttachNotSupportedException; |
| |
| import jdk.internal.agent.ConnectorAddressLink; |
| import sun.jvmstat.monitor.HostIdentifier; |
| import sun.jvmstat.monitor.MonitoredHost; |
| import sun.jvmstat.monitor.MonitoredVm; |
| import sun.jvmstat.monitor.MonitoredVmUtil; |
| import sun.jvmstat.monitor.MonitorException; |
| import sun.jvmstat.monitor.VmIdentifier; |
| |
| public class LocalVirtualMachine { |
| private String address; |
| private String commandLine; |
| private String displayName; |
| private int vmid; |
| private boolean isAttachSupported; |
| |
| public LocalVirtualMachine(int vmid, String commandLine, boolean canAttach, String connectorAddress) { |
| this.vmid = vmid; |
| this.commandLine = commandLine; |
| this.address = connectorAddress; |
| this.isAttachSupported = canAttach; |
| this.displayName = getDisplayName(commandLine); |
| } |
| |
| private static String getDisplayName(String commandLine) { |
| // trim the pathname of jar file if it's a jar |
| String[] res = commandLine.split(" ", 2); |
| if (res[0].endsWith(".jar")) { |
| File jarfile = new File(res[0]); |
| String displayName = jarfile.getName(); |
| if (res.length == 2) { |
| displayName += " " + res[1]; |
| } |
| return displayName; |
| } |
| return commandLine; |
| } |
| |
| public int vmid() { |
| return vmid; |
| } |
| |
| public boolean isManageable() { |
| return (address != null); |
| } |
| |
| public boolean isAttachable() { |
| return isAttachSupported; |
| } |
| |
| public void startManagementAgent() throws IOException { |
| if (address != null) { |
| // already started |
| return; |
| } |
| |
| if (!isAttachable()) { |
| throw new IOException("This virtual machine \"" + vmid + |
| "\" does not support dynamic attach."); |
| } |
| |
| loadManagementAgent(); |
| // fails to load or start the management agent |
| if (address == null) { |
| // should never reach here |
| throw new IOException("Fails to find connector address"); |
| } |
| } |
| |
| public String connectorAddress() { |
| // return null if not available or no JMX agent |
| return address; |
| } |
| |
| public String displayName() { |
| return displayName; |
| } |
| |
| public String toString() { |
| return commandLine; |
| } |
| |
| // This method returns the list of all virtual machines currently |
| // running on the machine |
| public static Map<Integer, LocalVirtualMachine> getAllVirtualMachines() { |
| Map<Integer, LocalVirtualMachine> map = |
| new HashMap<Integer, LocalVirtualMachine>(); |
| getMonitoredVMs(map); |
| getAttachableVMs(map); |
| return map; |
| } |
| |
| private static void getMonitoredVMs(Map<Integer, LocalVirtualMachine> map) { |
| MonitoredHost host; |
| Set<Integer> vms; |
| try { |
| host = MonitoredHost.getMonitoredHost(new HostIdentifier((String)null)); |
| vms = host.activeVms(); |
| } catch (java.net.URISyntaxException | MonitorException x) { |
| throw new InternalError(x.getMessage(), x); |
| } |
| for (Object vmid: vms) { |
| if (vmid instanceof Integer) { |
| int pid = ((Integer) vmid).intValue(); |
| String name = vmid.toString(); // default to pid if name not available |
| boolean attachable = false; |
| String address = null; |
| try { |
| MonitoredVm mvm = host.getMonitoredVm(new VmIdentifier(name)); |
| // use the command line as the display name |
| name = MonitoredVmUtil.commandLine(mvm); |
| attachable = MonitoredVmUtil.isAttachable(mvm); |
| address = ConnectorAddressLink.importFrom(pid); |
| mvm.detach(); |
| } catch (Exception x) { |
| // ignore |
| } |
| map.put((Integer) vmid, |
| new LocalVirtualMachine(pid, name, attachable, address)); |
| } |
| } |
| } |
| |
| private static final String LOCAL_CONNECTOR_ADDRESS_PROP = |
| "com.sun.management.jmxremote.localConnectorAddress"; |
| |
| private static void getAttachableVMs(Map<Integer, LocalVirtualMachine> map) { |
| List<VirtualMachineDescriptor> vms = VirtualMachine.list(); |
| for (VirtualMachineDescriptor vmd : vms) { |
| try { |
| Integer vmid = Integer.valueOf(vmd.id()); |
| if (!map.containsKey(vmid)) { |
| boolean attachable = false; |
| String address = null; |
| try { |
| VirtualMachine vm = VirtualMachine.attach(vmd); |
| attachable = true; |
| Properties agentProps = vm.getAgentProperties(); |
| address = (String) agentProps.get(LOCAL_CONNECTOR_ADDRESS_PROP); |
| vm.detach(); |
| } catch (AttachNotSupportedException x) { |
| // not attachable |
| } catch (IOException x) { |
| // ignore |
| } |
| map.put(vmid, new LocalVirtualMachine(vmid.intValue(), |
| vmd.displayName(), |
| attachable, |
| address)); |
| } |
| } catch (NumberFormatException e) { |
| // do not support vmid different than pid |
| } |
| } |
| } |
| |
| public static LocalVirtualMachine getLocalVirtualMachine(int vmid) { |
| Map<Integer, LocalVirtualMachine> map = getAllVirtualMachines(); |
| LocalVirtualMachine lvm = map.get(vmid); |
| if (lvm == null) { |
| // Check if the VM is attachable but not included in the list |
| // if it's running with a different security context. |
| // For example, Windows services running |
| // local SYSTEM account are attachable if you have Adminstrator |
| // privileges. |
| boolean attachable = false; |
| String address = null; |
| String name = String.valueOf(vmid); // default display name to pid |
| try { |
| VirtualMachine vm = VirtualMachine.attach(name); |
| attachable = true; |
| Properties agentProps = vm.getAgentProperties(); |
| address = (String) agentProps.get(LOCAL_CONNECTOR_ADDRESS_PROP); |
| vm.detach(); |
| lvm = new LocalVirtualMachine(vmid, name, attachable, address); |
| } catch (AttachNotSupportedException x) { |
| // not attachable |
| if (JConsole.isDebug()) { |
| x.printStackTrace(); |
| } |
| } catch (IOException x) { |
| // ignore |
| if (JConsole.isDebug()) { |
| x.printStackTrace(); |
| } |
| } |
| } |
| return lvm; |
| } |
| |
| // load the management agent into the target VM |
| private void loadManagementAgent() throws IOException { |
| VirtualMachine vm = null; |
| String name = String.valueOf(vmid); |
| try { |
| vm = VirtualMachine.attach(name); |
| } catch (AttachNotSupportedException x) { |
| IOException ioe = new IOException(x.getMessage()); |
| ioe.initCause(x); |
| throw ioe; |
| } |
| |
| vm.startLocalManagementAgent(); |
| |
| // get the connector address |
| Properties agentProps = vm.getAgentProperties(); |
| address = (String) agentProps.get(LOCAL_CONNECTOR_ADDRESS_PROP); |
| |
| vm.detach(); |
| } |
| } |