diff -r 96d9a55357fd -r 6b6e22f836d0 jdk/src/jdk.runtime/share/classes/sun/tracing/MultiplexProviderFactory.java --- a/jdk/src/jdk.runtime/share/classes/sun/tracing/MultiplexProviderFactory.java Tue Feb 17 11:50:02 2015 -0800 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,137 +0,0 @@ -/* - * 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 java.lang.reflect.InvocationTargetException; -import java.util.HashMap; -import java.util.HashSet; -import java.util.Set; - -import com.sun.tracing.ProviderFactory; -import com.sun.tracing.Provider; -import com.sun.tracing.Probe; - -/** - * Factory class to create tracing Providers. - * - * This factory creates a "multiplex provider", which is a provider that - * encapsulates a list of providers and whose probes trigger a corresponding - * trigger in each of the encapsulated providers' probes. - * - * This is used when there are multiple tracing frameworks activated at once. - * A user-defined provider gets implementation for each of the activated - * frameworks and this multiplex framework is what is ultimately passed - * back to the user. All probe triggers are multiplexed to each - * active framework. - * - * @since 1.7 - */ -public class MultiplexProviderFactory extends ProviderFactory { - - private Set factories; - - public MultiplexProviderFactory(Set factories) { - this.factories = factories; - } - - public T createProvider(Class cls) { - HashSet providers = new HashSet(); - for (ProviderFactory factory : factories) { - providers.add(factory.createProvider(cls)); - } - MultiplexProvider provider = new MultiplexProvider(cls, providers); - provider.init(); - return provider.newProxyInstance(); - } -} - -class MultiplexProvider extends ProviderSkeleton { - - private Set providers; - - protected ProbeSkeleton createProbe(Method m) { - return new MultiplexProbe(m, providers); - } - - MultiplexProvider(Class type, Set providers) { - super(type); - this.providers = providers; - } - - public void dispose() { - for (Provider p : providers) { - p.dispose(); - } - super.dispose(); - } -} - -class MultiplexProbe extends ProbeSkeleton { - - private Set probes; - - MultiplexProbe(Method m, Set providers) { - super(m.getParameterTypes()); - probes = new HashSet(); - for (Provider p : providers) { - Probe probe = p.getProbe(m); - if (probe != null) { - probes.add(probe); - } - } - } - - public boolean isEnabled() { - for (Probe p : probes) { - if (p.isEnabled()) { - return true; - } - } - return false; - } - - public void uncheckedTrigger(Object[] args) { - for (Probe p : probes) { - try { - // try the fast path - ProbeSkeleton ps = (ProbeSkeleton)p; - ps.uncheckedTrigger(args); - } catch (ClassCastException e) { - // Probe.trigger takes an "Object ..." varargs parameter, - // so we can't call it directly. - try { - Method m = Probe.class.getMethod( - "trigger", Class.forName("[java.lang.Object")); - m.invoke(p, args); - } catch (Exception e1) { - assert false; // This shouldn't happen - } - } - } - } -} -