Showing the changes to java/pkg/sun/tracing/PrintStreamProviderFactory.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.tracing; | |
| 27 | + | |
| 28 | +import java.lang.reflect.Method; | |
| 29 | +import java.io.PrintStream; | |
| 30 | +import java.util.HashMap; | |
| 31 | + | |
| 32 | +import com.sun.tracing.ProviderFactory; | |
| 33 | +import com.sun.tracing.Provider; | |
| 34 | +import com.sun.tracing.ProviderName; | |
| 35 | +import com.sun.tracing.Probe; | |
| 36 | +import com.sun.tracing.ProbeName; | |
| 37 | + | |
| 38 | +/** | |
| 39 | + * Factory class to create tracing Providers. | |
| 40 | + * | |
| 41 | + * This factory will create tracing instances that print to a PrintStream | |
| 42 | + * when activated. | |
| 43 | + * | |
| 44 | + * @since 1.7 | |
| 45 | + */ | |
| 46 | +public class PrintStreamProviderFactory extends ProviderFactory { | |
| 47 | + | |
| 48 | + private PrintStream stream; | |
| 49 | + | |
| 50 | + public PrintStreamProviderFactory(PrintStream stream) { | |
| 51 | + this.stream = stream; | |
| 52 | + } | |
| 53 | + | |
| 54 | + public <T extends Provider> T createProvider(Class<T> cls) { | |
| 55 | + PrintStreamProvider provider = new PrintStreamProvider(cls, stream); | |
| 56 | + provider.init(); | |
| 57 | + return provider.newProxyInstance(); | |
| 58 | + } | |
| 59 | +} | |
| 60 | + | |
| 61 | +class PrintStreamProvider extends ProviderSkeleton { | |
| 62 | + | |
| 63 | + private PrintStream stream; | |
| 64 | + private String providerName; | |
| 65 | + | |
| 66 | + protected ProbeSkeleton createProbe(Method m) { | |
| 67 | + String probeName = getAnnotationString(m, ProbeName.class, m.getName()); | |
| 68 | + return new PrintStreamProbe(this, probeName, m.getParameterTypes()); | |
| 69 | + } | |
| 70 | + | |
| 71 | + PrintStreamProvider(Class<? extends Provider> type, PrintStream stream) { | |
| 72 | + super(type); | |
| 73 | + this.stream = stream; | |
| 74 | + this.providerName = getProviderName(); | |
| 75 | + } | |
| 76 | + | |
| 77 | + PrintStream getStream() { | |
| 78 | + return stream; | |
| 79 | + } | |
| 80 | + | |
| 81 | + String getName() { | |
| 82 | + return providerName; | |
| 83 | + } | |
| 84 | +} | |
| 85 | + | |
| 86 | +class PrintStreamProbe extends ProbeSkeleton { | |
| 87 | + | |
| 88 | + private PrintStreamProvider provider; | |
| 89 | + private String name; | |
| 90 | + | |
| 91 | + PrintStreamProbe(PrintStreamProvider p, String name, Class<?>[] params) { | |
| 92 | + super(params); | |
| 93 | + this.provider = p; | |
| 94 | + this.name = name; | |
| 95 | + } | |
| 96 | + | |
| 97 | + public boolean isEnabled() { | |
| 98 | + return true; | |
| 99 | + } | |
| 100 | + | |
| 101 | + public void uncheckedTrigger(Object[] args) { | |
| 102 | + StringBuffer sb = new StringBuffer(); | |
| 103 | + sb.append(provider.getName()); | |
| 104 | + sb.append("."); | |
| 105 | + sb.append(name); | |
| 106 | + sb.append("("); | |
| 107 | + boolean first = true; | |
| 108 | + for (Object o : args) { | |
| 109 | + if (first == false) { | |
| 110 | + sb.append(","); | |
| 111 | + } else { | |
| 112 | + first = false; | |
| 113 | + } | |
| 114 | + sb.append(o.toString()); | |
| 115 | + } | |
| 116 | + sb.append(")"); | |
| 117 | + provider.getStream().println(sb.toString()); | |
| 118 | + } | |
| 119 | +} | |
| 120 | + | |