jdk/src/jdk.runtime/share/classes/sun/tracing/dtrace/DTraceProviderFactory.java
changeset 29034 17c1e9d67f71
parent 29018 7f7b6d9e9461
parent 29033 e70dcf797a33
child 29035 af8778de756a
--- a/jdk/src/jdk.runtime/share/classes/sun/tracing/dtrace/DTraceProviderFactory.java	Wed Feb 18 03:45:06 2015 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,156 +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.dtrace;
-
-import java.util.Map;
-import java.util.Set;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.security.Permission;
-
-import com.sun.tracing.ProviderFactory;
-import com.sun.tracing.Provider;
-
-/**
- * Factory class to create JSDT Providers.
- *
- * This class contains methods to create an instance of a Provider
- * interface which can be used to place tracepoints in an application.
- * Method calls upon that instance trigger DTrace probes that
- * are visible from DTrace scripts.   Such calls have no other
- * side effects in the application.
- * <p>
- * The DTrace script mechanisms for listing and matching probes will not see
- * nor match any probes until the provider they reside in is created by a
- * call to {@code createProvider()} (or {@code createProviders()}).
- * <p>
- * Providers that are created should be disposed of when they are no longer
- * needed to free up system resources, at which point the associated
- * DTrace probes will no longer be available to DTrace.  One disposes a
- * provider by calling
- * {@link com.sun.tracing.Provider#dispose Provider.dispose()} on a
- * created provider instance.
- *
- * @since 1.7
- */
-public final class DTraceProviderFactory extends ProviderFactory {
-    /**
-     * Creates an instance of a provider which can then be used to trigger
-     * DTrace probes.
-     *
-     * The provider specification, provided as an argument, should only
-     * contain methods which have a 'void' return type and String or
-     * integer-based typed arguments (long, int, short, char, byte, or boolean).
-     *
-     * @param cls A user-defined interface which extends {@code Provider}.
-     * @return An instance of the interface which is used to trigger
-     * the DTrace probes.
-     * @throws java.lang.SecurityException if a security manager has been
-     * installed and it denies
-     * RuntimePermission("com.sun.dtrace.jsdt.createProvider")
-     * @throws java.lang.IllegalArgumentException if the interface contains
-     * methods that do not return null, or that contain arguments that are
-     * not String or integer types.
-     */
-    public <T extends Provider> T createProvider(Class<T> cls) {
-        DTraceProvider jsdt = new DTraceProvider(cls);
-        T proxy = jsdt.newProxyInstance();
-        jsdt.setProxy(proxy);
-        jsdt.init();
-        new Activation(jsdt.getModuleName(), new DTraceProvider[] { jsdt });
-        return proxy;
-    }
-
-    /**
-     * Creates multiple providers at once.
-     *
-     * This method batches together a number of provider instantiations.
-     * It works similarly
-     * to {@code createProvider}, but operates on a set of providers instead
-     * of one at a time.  This method is in place since some DTrace
-     * implementations limit the number of times that providers can be
-     * created.  When numerous providers can be created at once with this
-     * method, it will count only as a single creation point to DTrace, thus
-     * it uses less system resources.
-     * <p>
-     * All of the probes in the providers will be visible to DTrace after
-     * this call and all will remain visible until all of the providers
-     * are disposed.
-     * <p>
-     * The {@code moduleName} parameter will override any {@code ModuleName}
-     * annotation associated with any of the providers in the set.
-     * All of the probes created by this call will share the same
-     * module name.
-     * <p>
-     * @param providers a set of provider specification interfaces
-     * @param moduleName the module name to associate with all probes
-     * @return A map which maps the provider interface specification to an
-     * implementing instance.
-     * @throws java.lang.SecurityException if a security manager has been
-     * installed and it denies
-     * RuntimePermission("com.sun.dtrace.jsdt.createProvider")
-     * @throws java.lang.IllegalArgumentException if any of the interface
-     * contains methods that do not return null, or that contain arguments
-     * that are not String or integer types.
-     */
-    public Map<Class<? extends Provider>,Provider> createProviders(
-            Set<Class<? extends Provider>> providers, String moduleName) {
-        HashMap<Class<? extends Provider>,Provider> map =
-            new HashMap<Class<? extends Provider>,Provider>();
-        HashSet<DTraceProvider> jsdts = new HashSet<DTraceProvider>();
-        for (Class<? extends Provider> cls : providers) {
-            DTraceProvider jsdt = new DTraceProvider(cls);
-            jsdts.add(jsdt);
-            map.put(cls, jsdt.newProxyInstance());
-        }
-        new Activation(moduleName, jsdts.toArray(new DTraceProvider[0]));
-        return map;
-    }
-
-    /**
-     * Used to check the status of DTrace support in the underlying JVM and
-     * operating system.
-     *
-     * This is an informative method only - the Java-level effects of
-     * creating providers and triggering probes will not change whether or
-     * not DTrace is supported by the underlying systems.
-     *
-     * @return true if DTrace is supported
-     */
-    public static boolean isSupported() {
-        try {
-            SecurityManager security = System.getSecurityManager();
-            if (security != null) {
-                Permission perm = new RuntimePermission(
-                        "com.sun.tracing.dtrace.createProvider");
-                security.checkPermission(perm);
-            }
-            return JVM.isSupported();
-        } catch (SecurityException e) {
-            return false;
-        }
-    }
-}