01: /*
02: * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun in the LICENSE file that accompanied this code.
10: *
11: * This code is distributed in the hope that it will be useful, but WITHOUT
12: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14: * version 2 for more details (a copy is included in the LICENSE file that
15: * accompanied this code).
16: *
17: * You should have received a copy of the GNU General Public License version
18: * 2 along with this work; if not, write to the Free Software Foundation,
19: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20: *
21: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25: package sun.tools.attach;
26:
27: import com.sun.tools.attach.VirtualMachine;
28: import com.sun.tools.attach.VirtualMachineDescriptor;
29: import com.sun.tools.attach.AttachNotSupportedException;
30: import com.sun.tools.attach.spi.AttachProvider;
31:
32: import java.io.IOException;
33:
34: /*
35: * An AttachProvider implementation for Linux that uses a UNIX domain
36: * socket.
37: */
38: public class LinuxAttachProvider extends HotSpotAttachProvider {
39:
40: // perf counter for the JVM version
41: private static final String JVM_VERSION = "java.property.java.vm.version";
42:
43: public LinuxAttachProvider() {
44: }
45:
46: public String name() {
47: return "sun";
48: }
49:
50: public String type() {
51: return "socket";
52: }
53:
54: public VirtualMachine attachVirtualMachine(String vmid)
55: throws AttachNotSupportedException, IOException {
56: checkAttachPermission();
57:
58: // AttachNotSupportedException will be thrown if the target VM can be determined
59: // to be not attachable.
60: testAttachable(vmid);
61:
62: return new LinuxVirtualMachine(this , vmid);
63: }
64:
65: public VirtualMachine attachVirtualMachine(
66: VirtualMachineDescriptor vmd)
67: throws AttachNotSupportedException, IOException {
68: if (vmd.provider() != this ) {
69: throw new AttachNotSupportedException("provider mismatch");
70: }
71: // To avoid re-checking if the VM if attachable, we check if the descriptor
72: // is for a hotspot VM - these descriptors are created by the listVirtualMachines
73: // implementation which only returns a list of attachable VMs.
74: if (vmd instanceof HotSpotVirtualMachineDescriptor) {
75: assert ((HotSpotVirtualMachineDescriptor) vmd)
76: .isAttachable();
77: checkAttachPermission();
78: return new LinuxVirtualMachine(this, vmd.id());
79: } else {
80: return attachVirtualMachine(vmd.id());
81: }
82: }
83:
84: }
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