/* * Copyright (c) 2008, 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.tracing.dtrace;import java.lang.reflect.Method;import java.lang.reflect.InvocationTargetException;import sun.tracing.ProbeSkeleton;class DTraceProbe extends ProbeSkeleton { private Object proxy; private Method declared_method; private Method implementing_method; DTraceProbe(Object proxy, Method m) { super(m.getParameterTypes()); this.proxy = proxy; this.declared_method = m; try { // The JVM will override the proxy method's implementation with // a version that will invoke the probe. this.implementing_method = proxy.getClass().getMethod( m.getName(), m.getParameterTypes()); } catch (NoSuchMethodException e) { throw new RuntimeException("Internal error, wrong proxy class"); } } public boolean isEnabled() { return JVM.isEnabled(implementing_method); } public void uncheckedTrigger(Object[] args) { try { implementing_method.invoke(proxy, args); } catch (IllegalAccessException e) { assert false; } catch (InvocationTargetException e) { assert false; } } String getProbeName() { return DTraceProvider.getProbeName(declared_method); } String getFunctionName() { return DTraceProvider.getFunctionName(declared_method); } Method getMethod() { return implementing_method; } Class<?>[] getParameterTypes() { return this.parameters; }}
/*
* Copyright (c) 2008, 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.tracing.dtrace;
import java.lang.reflect.Method;
import java.lang.reflect.InvocationTargetException;
import sun.tracing.ProbeSkeleton;
class DTraceProbe extends ProbeSkeleton {
private Object proxy;
private Method declared_method;
private Method implementing_method;
DTraceProbe(Object proxy, Method m) {
super(m.getParameterTypes());
this.proxy = proxy;
this.declared_method = m;
try {
// The JVM will override the proxy method's implementation with
// a version that will invoke the probe.
this.implementing_method = proxy.getClass().getMethod(
m.getName(), m.getParameterTypes());
} catch (NoSuchMethodException e) {
throw new RuntimeException("Internal error, wrong proxy class");
}
}
public boolean isEnabled() {
return JVM.isEnabled(implementing_method);
}
public void uncheckedTrigger(Object[] args) {
try {
implementing_method.invoke(proxy, args);
} catch (IllegalAccessException e) {
assert false;
} catch (InvocationTargetException e) {
assert false;
}
}
String getProbeName() {
return DTraceProvider.getProbeName(declared_method);
}
String getFunctionName() {
return DTraceProvider.getFunctionName(declared_method);
}
Method getMethod() {
return implementing_method;
}
Class<?>[] getParameterTypes() {
return this.parameters;
}
}