| /* |
| * Copyright (c) 1999, 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. |
| * |
| * 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 bench.serial; |
| |
| import bench.Benchmark; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.io.ObjectStreamClass; |
| import java.lang.reflect.InvocationHandler; |
| import java.lang.reflect.Proxy; |
| |
| /** |
| * Benchmark for testing speed of proxy class descriptor reads/writes. |
| */ |
| public class ProxyClassDesc implements Benchmark { |
| |
| static interface A1 {}; |
| static interface A2 {}; |
| static interface A3 {}; |
| static interface A4 {}; |
| static interface A5 {}; |
| static interface B1 {}; |
| static interface B2 {}; |
| static interface B3 {}; |
| static interface B4 {}; |
| static interface B5 {}; |
| static interface C1 {}; |
| static interface C2 {}; |
| static interface C3 {}; |
| static interface C4 {}; |
| static interface C5 {}; |
| |
| /** |
| * Write and read proxy class descriptors to/from a stream. |
| * Arguments: <# cycles> |
| */ |
| public long run(String[] args) throws Exception { |
| int ncycles = Integer.parseInt(args[0]); |
| StreamBuffer sbuf = new StreamBuffer(); |
| ObjectOutputStream oout = |
| new ObjectOutputStream(sbuf.getOutputStream()); |
| ObjectInputStream oin = |
| new ObjectInputStream(sbuf.getInputStream()); |
| ObjectStreamClass[] descs = genDescs(); |
| |
| doReps(oout, oin, sbuf, descs, 1); // warmup |
| |
| long start = System.currentTimeMillis(); |
| doReps(oout, oin, sbuf, descs, ncycles); |
| return System.currentTimeMillis() - start; |
| } |
| |
| /** |
| * Generate proxy class descriptors. |
| */ |
| ObjectStreamClass[] genDescs() { |
| ClassLoader ldr = ProxyClassDesc.class.getClassLoader(); |
| Class[] ifaces = new Class[3]; |
| Class[] a = |
| new Class[] { A1.class, A2.class, A3.class, A4.class, A5.class }; |
| Class[] b = |
| new Class[] { B1.class, B2.class, B3.class, B4.class, B5.class }; |
| Class[] c = |
| new Class[] { C1.class, C2.class, C3.class, C4.class, C5.class }; |
| ObjectStreamClass[] descs = |
| new ObjectStreamClass[a.length * b.length * c.length]; |
| int n = 0; |
| for (int i = 0; i < a.length; i++) { |
| ifaces[0] = a[i]; |
| for (int j = 0; j < b.length; j++) { |
| ifaces[1] = b[j]; |
| for (int k = 0; k < c.length; k++) { |
| ifaces[2] = c[k]; |
| Class proxyClass = Proxy.getProxyClass(ldr, ifaces); |
| descs[n++] = ObjectStreamClass.lookup(proxyClass); |
| } |
| } |
| } |
| return descs; |
| } |
| |
| /** |
| * Run benchmark for given number of cycles. |
| */ |
| void doReps(ObjectOutputStream oout, ObjectInputStream oin, |
| StreamBuffer sbuf, ObjectStreamClass[] descs, int ncycles) |
| throws Exception |
| { |
| int ndescs = descs.length; |
| for (int i = 0; i < ncycles; i++) { |
| sbuf.reset(); |
| oout.reset(); |
| for (int j = 0; j < ndescs; j++) { |
| oout.writeObject(descs[j]); |
| } |
| oout.flush(); |
| for (int j = 0; j < ndescs; j++) { |
| oin.readObject(); |
| } |
| } |
| } |
| } |