--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/jdi/SAPIDAttachingConnector.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2002-2004 Sun Microsystems, Inc.  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.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.jdi;
+
+import com.sun.jdi.connect.*;
+import com.sun.jdi.Bootstrap;
+import com.sun.jdi.VirtualMachine;
+import com.sun.jdi.VirtualMachineManager;
+
+import java.io.*;
+import java.lang.reflect.*;
+import java.net.*;
+import java.util.*;
+
+public class SAPIDAttachingConnector extends ConnectorImpl implements AttachingConnector {
+    static final String ARG_PID = "pid";
+    private Transport transport;
+
+    public SAPIDAttachingConnector(com.sun.tools.jdi.VirtualMachineManagerService ignored) {
+         this();
+    }
+
+    public SAPIDAttachingConnector() {
+         super();
+         // fixme jjh:  create resources for the these strings,
+        addStringArgument(
+                ARG_PID,
+                "PID",                     //getString("sa.pid.label"),
+                "PID of a Java process",   //getString("sa.pid.description");
+                "",
+                true);
+        transport = new Transport() {
+                   public String name() {
+                       return "local process";
+                       }
+                };
+    }
+
+    // security check to see whether the caller can perform attach
+    private void checkProcessAttach(int pid) {
+        SecurityManager sm = System.getSecurityManager();
+        if (sm != null) {
+            String os = System.getProperty("os.name");
+            try {
+                // Whether the caller can perform link against SA native library?
+                checkNativeLink(sm, os);
+                if (os.equals("SunOS") || os.equals("Linux")) {
+                    // Whether the caller can read /proc/<pid> file?
+                    sm.checkRead("/proc/" + pid);
+                }
+            } catch (SecurityException se) {
+                throw new SecurityException("permission denied to attach to " + pid);
+            }
+        }
+    }
+
+    private VirtualMachine createVirtualMachine(Class virtualMachineImplClass, int pid)
+        throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
+        java.lang.reflect.Method createByPIDMethod
+                  = virtualMachineImplClass.getMethod("createVirtualMachineForPID",
+                     new Class[] {
+                         VirtualMachineManager.class,
+                         Integer.TYPE, Integer.TYPE
+                     });
+        return (VirtualMachine) createByPIDMethod.invoke(null,
+                     new Object[] {
+                         Bootstrap.virtualMachineManager(),
+                         new Integer(pid),
+                         new Integer(0)
+                     });
+    }
+
+    public VirtualMachine attach(Map arguments) throws IOException,
+                                      IllegalConnectorArgumentsException {
+        int pid = 0;
+        try {
+            pid = Integer.parseInt(argument(ARG_PID, arguments).value());
+        } catch (NumberFormatException nfe) {
+            throw (IllegalConnectorArgumentsException) new IllegalConnectorArgumentsException
+                                                  (nfe.getMessage(), ARG_PID).initCause(nfe);
+        }
+
+        checkProcessAttach(pid);
+
+        VirtualMachine myVM = null;
+        try {
+            try {
+                Class vmImplClass = loadVirtualMachineImplClass();
+                myVM = createVirtualMachine(vmImplClass, pid);
+            } catch (InvocationTargetException ite) {
+                Class vmImplClass = handleVMVersionMismatch(ite);
+                if (vmImplClass != null) {
+                    return createVirtualMachine(vmImplClass, pid);
+                } else {
+                    throw ite;
+                }
+            }
+        } catch (Exception ee) {
+            if (DEBUG) {
+                System.out.println("VirtualMachineImpl() got an exception:");
+                ee.printStackTrace();
+                System.out.println("pid = " + pid);
+            }
+            throw (IOException) new IOException().initCause(ee);
+        }
+        setVMDisposeObserver(myVM);
+        return myVM;
+    }
+
+    public String name() {
+        return "sun.jvm.hotspot.jdi.SAPIDAttachingConnector";
+    }
+
+    public String description() {
+        return getString("This connector allows you to attach to a Java process using the Serviceability Agent");
+    }
+
+    public Transport transport() {
+        return transport;
+    }
+}