/* * 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;import java.lang.reflect.Method;import com.sun.tracing.ProviderFactory;import com.sun.tracing.Provider;/** * Factory class to create tracing Providers. * * This factory will create tracing instances that do nothing. * It is used when no tracing is desired, but Provider instances still * must be generated so that tracing calls in the application continue to * run. * * @since 1.7 */public class NullProviderFactory extends ProviderFactory { /** * Creates and returns a Null provider. * * See comments at {@code ProviderSkeleton.createProvider()} for more * details. * * @return a provider whose probe trigger are no-ops. */ public <T extends Provider> T createProvider(Class<T> cls) { NullProvider provider = new NullProvider(cls); provider.init(); return provider.newProxyInstance(); }}class NullProvider extends ProviderSkeleton { NullProvider(Class<? extends Provider> type) { super(type); } protected ProbeSkeleton createProbe(Method m) { return new NullProbe(m.getParameterTypes()); }}class NullProbe extends ProbeSkeleton { public NullProbe(Class<?>[] parameters) { super(parameters); } public boolean isEnabled() { return false; } public void uncheckedTrigger(Object[] args) { }}
/*
* 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;
import java.lang.reflect.Method;
import com.sun.tracing.ProviderFactory;
import com.sun.tracing.Provider;
/**
* Factory class to create tracing Providers.
*
* This factory will create tracing instances that do nothing.
* It is used when no tracing is desired, but Provider instances still
* must be generated so that tracing calls in the application continue to
* run.
*
* @since 1.7
*/
public class NullProviderFactory extends ProviderFactory {
/**
* Creates and returns a Null provider.
*
* See comments at {@code ProviderSkeleton.createProvider()} for more
* details.
*
* @return a provider whose probe trigger are no-ops.
*/
public <T extends Provider> T createProvider(Class<T> cls) {
NullProvider provider = new NullProvider(cls);
provider.init();
return provider.newProxyInstance();
}
}
class NullProvider extends ProviderSkeleton {
NullProvider(Class<? extends Provider> type) {
super(type);
}
protected ProbeSkeleton createProbe(Method m) {
return new NullProbe(m.getParameterTypes());
}
}
class NullProbe extends ProbeSkeleton {
public NullProbe(Class<?>[] parameters) {
super(parameters);
}
public boolean isEnabled() {
return false;
}
public void uncheckedTrigger(Object[] args) {
}
}