| /* |
| * 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.io.PrintStream; |
| import java.util.HashMap; |
| |
| import com.sun.tracing.ProviderFactory; |
| import com.sun.tracing.Provider; |
| import com.sun.tracing.ProviderName; |
| import com.sun.tracing.Probe; |
| import com.sun.tracing.ProbeName; |
| |
| /** |
| * Factory class to create tracing Providers. |
| * |
| * This factory will create tracing instances that print to a PrintStream |
| * when activated. |
| * |
| * @since 1.7 |
| */ |
| public class PrintStreamProviderFactory extends ProviderFactory { |
| |
| private PrintStream stream; |
| |
| public PrintStreamProviderFactory(PrintStream stream) { |
| this.stream = stream; |
| } |
| |
| public <T extends Provider> T createProvider(Class<T> cls) { |
| PrintStreamProvider provider = new PrintStreamProvider(cls, stream); |
| provider.init(); |
| return provider.newProxyInstance(); |
| } |
| } |
| |
| class PrintStreamProvider extends ProviderSkeleton { |
| |
| private PrintStream stream; |
| private String providerName; |
| |
| protected ProbeSkeleton createProbe(Method m) { |
| String probeName = getAnnotationString(m, ProbeName.class, m.getName()); |
| return new PrintStreamProbe(this, probeName, m.getParameterTypes()); |
| } |
| |
| PrintStreamProvider(Class<? extends Provider> type, PrintStream stream) { |
| super(type); |
| this.stream = stream; |
| this.providerName = getProviderName(); |
| } |
| |
| PrintStream getStream() { |
| return stream; |
| } |
| |
| String getName() { |
| return providerName; |
| } |
| } |
| |
| class PrintStreamProbe extends ProbeSkeleton { |
| |
| private PrintStreamProvider provider; |
| private String name; |
| |
| PrintStreamProbe(PrintStreamProvider p, String name, Class<?>[] params) { |
| super(params); |
| this.provider = p; |
| this.name = name; |
| } |
| |
| public boolean isEnabled() { |
| return true; |
| } |
| |
| public void uncheckedTrigger(Object[] args) { |
| StringBuffer sb = new StringBuffer(); |
| sb.append(provider.getName()); |
| sb.append("."); |
| sb.append(name); |
| sb.append("("); |
| boolean first = true; |
| for (Object o : args) { |
| if (first == false) { |
| sb.append(","); |
| } else { |
| first = false; |
| } |
| sb.append(o.toString()); |
| } |
| sb.append(")"); |
| provider.getStream().println(sb.toString()); |
| } |
| } |
| |