1 /*
   2  * Copyright (c) 2015, 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.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package compiler.compilercontrol.jcmd;
  25 
  26 import compiler.compilercontrol.parser.HugeDirectiveUtil;
  27 import compiler.compilercontrol.share.AbstractTestBase;
  28 import compiler.compilercontrol.share.method.MethodDescriptor;
  29 import compiler.compilercontrol.share.scenario.Executor;
  30 import jdk.test.lib.OutputAnalyzer;
  31 import jdk.test.lib.TimeLimitedRunner;
  32 import jdk.test.lib.Utils;
  33 import pool.PoolHelper;
  34 
  35 import java.util.List;
  36 import java.util.stream.Collectors;
  37 import java.util.stream.Stream;
  38 
  39 public abstract class StressAddJcmdBase {
  40     protected static int DIRECTIVES_AMOUNT = Integer.getInteger(
  41             "compiler.compilercontrol.jcmd.StressAddJcmdBase.directivesAmount",
  42             100);
  43     private static final int DIRECTIVE_FILES = Integer.getInteger(
  44             "compiler.compilercontrol.jcmd.StressAddJcmdBase.directiveFiles",
  45             4);
  46     private static final List<MethodDescriptor> DESCRIPTORS = new PoolHelper()
  47             .getAllMethods().stream()
  48                     .map(pair -> AbstractTestBase
  49                             .getValidMethodDescriptor(pair.first))
  50                     .collect(Collectors.toList());
  51 
  52     /**
  53      * Performs test
  54      */
  55     public void test() {
  56         List<String> commands = prepareCommands();
  57         Executor executor = new TimeLimitedExecutor(commands);
  58         List<OutputAnalyzer> outputAnalyzers = executor.execute();
  59         outputAnalyzers.get(0).shouldHaveExitValue(0);
  60     }
  61 
  62     /**
  63      * Makes connection to the test VM
  64      *
  65      * @param pid      a pid of the VM under test
  66      * @param commands a list of jcmd commands to be executed
  67      * @return true if the test should continue invocation of this method
  68      */
  69     protected abstract boolean makeConnection(int pid, List<String> commands);
  70 
  71     /**
  72      * Finish test executions
  73      */
  74     protected void finish() { }
  75 
  76     private List<String> prepareCommands() {
  77         String[] files = new String[DIRECTIVE_FILES];
  78         for (int i = 0; i < DIRECTIVE_FILES; i++) {
  79             files[i] = "directives" + i + ".json";
  80             HugeDirectiveUtil.createHugeFile(DESCRIPTORS, files[i],
  81                     DIRECTIVES_AMOUNT);
  82         }
  83         return Stream.of(files)
  84                 .map(file -> "Compiler.directives_add " + file)
  85                 .collect(Collectors.toList());
  86     }
  87 
  88     private class TimeLimitedExecutor extends Executor {
  89         private final List<String> jcmdCommands;
  90 
  91         public TimeLimitedExecutor(List<String> jcmdCommands) {
  92             /* There are no need to check the state */
  93             super(true, null, null, jcmdCommands);
  94             this.jcmdCommands = jcmdCommands;
  95         }
  96 
  97         @Override
  98         protected OutputAnalyzer[] executeJCMD(int pid) {
  99             try {
 100                 makeConnection(pid, jcmdCommands);
 101             } catch (Exception e) {
 102                 throw new Error("Exception during the execution: " + e, e);
 103             }
 104             finish();
 105             return new OutputAnalyzer[0];
 106         }
 107     }
 108 }