jdk/src/jdk.jvmstat/share/classes/sun/jvmstat/perfdata/monitor/AbstractPerfDataBuffer.java
--- a/jdk/src/jdk.jvmstat/share/classes/sun/jvmstat/perfdata/monitor/AbstractPerfDataBuffer.java Mon Feb 06 17:19:06 2017 -0800
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,211 +0,0 @@
-/*
- * Copyright (c) 2004, 2014, 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.jvmstat.perfdata.monitor;
-
-import sun.jvmstat.monitor.*;
-import java.util.*;
-import java.io.*;
-import java.lang.reflect.*;
-import java.nio.ByteBuffer;
-
-/**
- * Abstraction for the HotSpot PerfData instrumentation buffer. This class
- * is responsible for acquiring access to the instrumentation buffer for
- * a target HotSpot Java Virtual Machine and providing method level access
- * to its contents.
- *
- * @author Brian Doherty
- * @since 1.5
- */
-public abstract class AbstractPerfDataBuffer {
-
- /**
- * Reference to the concrete instance created by the
- * {@link #createPerfDataBuffer} method.
- */
- protected PerfDataBufferImpl impl;
-
- /**
- * Get the Local Java Virtual Machine Identifier, or <em>lvmid</em>
- * for the target JVM associated with this instrumentation buffer.
- *
- * @return int - the lvmid
- */
- public int getLocalVmId() {
- return impl.getLocalVmId();
- }
-
- /**
- * Get a copy of the raw instrumentation data.
- * This method is used to get a copy of the current bytes in the
- * instrumentation buffer. It is generally used for transporting
- * those bytes over the network.
- *
- * @return byte[] - a copy of the bytes in the instrumentation buffer.
- */
- public byte[] getBytes() {
- return impl.getBytes();
- }
-
- /**
- * Get the capacity of the instrumentation buffer.
- *
- * @return int - the capacity, or size, of the instrumentation buffer.
- */
- public int getCapacity() {
- return impl.getCapacity();
- }
-
- /**
- * Find a named Instrumentation object.
- *
- * This method will look for the named instrumentation object in the
- * instrumentation exported by this Java Virtual Machine. If an
- * instrumentation object with the given name exists, a Monitor interface
- * to that object will be return. Otherwise, the method returns
- * {@code null}.
- *
- * @param name the name of the Instrumentation object to find.
- * @return Monitor - the {@link Monitor} object that can be used to
- * monitor the named instrumentation object, or
- * {@code null} if the named object doesn't exist.
- * @throws MonitorException Thrown if an error occurs while communicating
- * with the target Java Virtual Machine.
- */
- public Monitor findByName(String name) throws MonitorException {
- return impl.findByName(name);
- }
-
- /**
- * Find all Instrumentation objects with names matching the given pattern.
- *
- * This method returns a {@link List} of Monitor objects such that
- * the name of each object matches the given pattern.
- *
- * @param patternString a string containing a pattern as described in
- * {@link java.util.regex.Pattern}.
- * @return {@code List<Monitor>} - a List of {@link Monitor}
- * objects that can be used to
- * monitor the instrumentation objects whose names match
- * the given pattern. If no instrumentation objects have`
- * names matching the given pattern, then an empty List
- * is returned.
- * @throws MonitorException Thrown if an error occurs while communicating
- * with the target Java Virtual Machine.
- * @see java.util.regex.Pattern
- */
- public List<Monitor> findByPattern(String patternString) throws MonitorException {
- return impl.findByPattern(patternString);
- }
-
- /**
- * Get a list of the inserted and removed monitors since last called.
- *
- * @return MonitorStatus - the status of available Monitors for the
- * target Java Virtual Machine.
- * @throws MonitorException Thrown if communications errors occur
- * while communicating with the target.
- */
- public MonitorStatus getMonitorStatus() throws MonitorException {
- return impl.getMonitorStatus();
- }
-
- /**
- * Get the ByteBuffer containing the instrumentation data.
- *
- * @return ByteBuffer - a ByteBuffer object that refers to the
- * instrumentation data.
- */
- public ByteBuffer getByteBuffer() {
- return impl.getByteBuffer();
- }
-
- /**
- * Create the perfdata instrumentation buffer for the given lvmid
- * using the given ByteBuffer object as the source of the instrumentation
- * data. This method parses the instrumentation buffer header to determine
- * key characteristics of the instrumentation buffer and then dynamically
- * loads the appropriate class to handle the particular instrumentation
- * version.
- *
- * @param bb the ByteBuffer that references the instrumentation data.
- * @param lvmid the Local Java Virtual Machine identifier for this
- * instrumentation buffer.
- *
- * @throws MonitorException
- */
- protected void createPerfDataBuffer(ByteBuffer bb, int lvmid)
- throws MonitorException {
- int majorVersion = AbstractPerfDataBufferPrologue.getMajorVersion(bb);
- int minorVersion = AbstractPerfDataBufferPrologue.getMinorVersion(bb);
-
- // instantiate the version specific class
- String classname = "sun.jvmstat.perfdata.monitor.v"
- + majorVersion + "_" + minorVersion
- + ".PerfDataBuffer";
-
- try {
- Class<?> implClass = Class.forName(classname);
- Constructor<?> cons = implClass.getConstructor(new Class<?>[] {
- Class.forName("java.nio.ByteBuffer"),
- Integer.TYPE
- });
-
- impl = (PerfDataBufferImpl)cons.newInstance(new Object[] {
- bb, lvmid
- });
-
- } catch (ClassNotFoundException e) {
- // from Class.forName();
- throw new IllegalArgumentException(
- "Could not find " + classname + ": " + e.getMessage(), e);
-
- } catch (NoSuchMethodException e) {
- // from Class.getConstructor();
- throw new IllegalArgumentException(
- "Expected constructor missing in " + classname + ": "
- + e.getMessage(), e);
-
- } catch (IllegalAccessException e) {
- // from Constructor.newInstance()
- throw new IllegalArgumentException(
- "Unexpected constructor access in " + classname + ": "
- + e.getMessage(), e);
-
- } catch (InstantiationException e) {
- throw new IllegalArgumentException(
- classname + "is abstract: " + e.getMessage(), e);
-
- } catch (InvocationTargetException e) {
- Throwable cause = e.getCause();
- if (cause instanceof MonitorException) {
- throw (MonitorException)cause;
- }
- throw new RuntimeException("Unexpected exception: "
- + e.getMessage() , e);
- }
- }
-}