/*
* Copyright 2010 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.
*/
import com.sun.btrace.annotations.*;
import static com.sun.btrace.BTraceUtils.*;
import com.sun.btrace.AnyType;
import java.util.Stack;
/**
* Prints an indented trace message showing phase information.
* Entry and exit of invalidate and be$.
* Shows parameters to sequence invalidation.
*
* Also, increments a MBean property on every invalidation.
*
* @author A. Sundararajan
* with modifications by:
* @author Robert Field
*/
@BTrace public class PhaseTracer {
// expose number of invalidations (monotonically increasing)
// as a MBean property
@Property
public static long invalidations;
public static String indent = "";
public static Stack<String> closeBrace = new Stack();
public static final int PHASE_INV = 4; // <- 0
public static final int PHASE_TRIG = 5; // <- 8
@OnMethod(
clazz="+org.visage.runtime.VisageObject",
method="/invalidate\\$.+/"
)
public static void onInvalidateEnter(
@ProbeClassName String className,
@ProbeMethodName String methodName,
AnyType[] args) {
invalidations++;
print(indent);
int pt = Integer.parseInt(args[args.length-1].toString());
int np = (pt >> 4) | ((pt & 2) << 2);
String ob = "%%";
String cb = "%%";
switch (np) {
case PHASE_INV:
ob = "(+";
cb = "+)";
break;
case 6:
ob = "<+";
cb = "+>";
break;
case PHASE_TRIG:
ob = "(@";
cb = "@)";
break;
case 13:
ob = "<@";
cb = "@>";
break;
default:
print(np);
print(" : ");
print(Integer.toHexString(pt));
}
closeBrace.push(cb);
print(ob);
print(" ");
print(className);
print(".");
print(substr(methodName, strlen("invalidate$")));
if (args.length == 4) {
print(" [");
print(args[0]);
print("..");
print(args[1]);
print("] = ");
print(args[2]);
}
println();
indent += "| ";
}
@OnMethod(
clazz="+org.visage.runtime.VisageObject",
method="/invalidate\\$.+/",
location=@Location(Kind.RETURN)
)
public static void onInvalidateReturn(
@ProbeClassName String className,
@ProbeMethodName String methodName) {
indent = indent.substring(3);
print(indent);
print(closeBrace.pop());
print(" ");
print(className);
print(".");
println(substr(methodName, strlen("invalidate$")));
}
@OnMethod(
clazz="+org.visage.runtime.VisageObject",
method="/update\\$.+/"
)
public static void onUpdateEnter(
@ProbeClassName String className,
AnyType[] args) {
invalidations++;
print(indent);
int pt = Integer.parseInt(args[args.length-1].toString());
int np = (pt >> 4) | ((pt & 2) << 2);
String ob = "%%";
String cb = "%%";
switch (np) {
case PHASE_INV:
ob = "{+";
cb = "+}";
break;
case 6:
ob = "[+";
cb = "+]";
break;
case PHASE_TRIG:
ob = "{@";
cb = "@}";
break;
case 13:
ob = "[@";
cb = "@]";
break;
default:
print(np);
print(" : ");
print(Integer.toHexString(pt));
}
closeBrace.push(cb);
print(ob);
print(" ");
print(className);
print(" - update");
if (args.length == 5) {
print(" [");
print(args[1]);
print("..");
print(args[2]);
print("] = ");
print(args[3]);
}
println();
indent += "| ";
}
@OnMethod(
clazz="+org.visage.runtime.VisageObject",
method="/update\\$.+/",
location=@Location(Kind.RETURN)
)
public static void onUpdateReturn(
@ProbeClassName String className) {
indent = indent.substring(3);
print(indent);
print(closeBrace.pop());
print(" ");
print(className);
println(" - update");
}
@OnMethod(
clazz="+org.visage.runtime.VisageObject",
method="/notifyDependents\\$.+/"
)
public static void onNotifyDependentsEnter(
@ProbeClassName String className) {
print(indent);
print("(. ");
print(className);
print(".");
println("NotifyDependents");
indent += "| ";
}
@OnMethod(
clazz="+org.visage.runtime.VisageObject",
method="/notifyDependents\\$.+/",
location=@Location(Kind.RETURN)
)
public static void onNotifyDependentsReturn(
@ProbeClassName String className) {
indent = indent.substring(3);
print(indent);
print(".) ");
print(className);
print(".");
println("NotifyDependents");
}
// "get$foo" are called to do (external) var set
@OnMethod(
clazz="+org.visage.runtime.VisageObject",
method="/get\\$.+/"
)
public static void onGetterEnter(
@ProbeClassName String className, @ProbeMethodName String methodName) {
print(indent);
print("(. ");
print(className);
print(".");
println(substr(methodName, strlen("get$")));
indent += "| ";
}
@OnMethod(
clazz="+org.visage.runtime.VisageObject",
method="/get\\$.+/",
location=@Location(Kind.RETURN)
)
public static void onGetterReturn(
@ProbeClassName String className, @ProbeMethodName String methodName) {
indent = indent.substring(3);
print(indent);
print(".) ");
print(className);
print(".");
println(substr(methodName, strlen("get$")));
}
// "be$foo" are called to do recomputation set (internal set)
@OnMethod(
clazz="+org.visage.runtime.VisageObject",
method="/be\\$.+/"
)
public static void onBeEnter(
@ProbeClassName String className,
@ProbeMethodName String methodName,
AnyType[] args) {
print(indent);
print("<= ");
print(className);
print(".");
print(substr(methodName, strlen("be$")));
print(" = ");
println(args[0]);
indent += "| ";
}
// "be$foo" are called to do recomputation set (internal set)
@OnMethod(
clazz="+org.visage.runtime.VisageObject",
method="/be\\$.+/",
location=@Location(Kind.RETURN)
)
public static void onBeReturn(
@ProbeClassName String className, @ProbeMethodName String methodName) {
indent = indent.substring(3);
print(indent);
print("=> ");
print(className);
print(".");
println(substr(methodName, strlen("be$")));
}
}