111 lines
3.6 KiB
Java
111 lines
3.6 KiB
Java
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package compiler.compilercontrol.share.scenario;
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import compiler.compilercontrol.share.method.MethodDescriptor;
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import jdk.test.lib.Utils;
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import java.util.List;
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import java.util.Random;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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/**
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* Generates random commands
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*/
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public class CommandGenerator {
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private static final int MAX_COMMANDS = Integer.getInteger(
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"compiler.compilercontrol.share.scenario.CommandGenerator.commands",
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100);
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private static final Random RANDOM = Utils.getRandomInstance();
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/**
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* Generates random command
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*
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* @return command
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*/
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public Command generateCommand() {
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return Utils.getRandomElement(Command.values());
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}
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/**
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* Generates random number of random command
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*
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* @return a list of random commands
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*/
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public List<Command> generateCommands() {
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int amount = 1 + RANDOM.nextInt(MAX_COMMANDS - 1);
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return generateCommands(amount);
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}
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/**
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* Generates specified amount of random command
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*
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* @param amount amount of commands to generate
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* @return a list of random commands
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*/
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public List<Command> generateCommands(int amount) {
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return Stream.generate(this::generateCommand)
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.limit(amount)
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.collect(Collectors.toList());
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}
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/**
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* Generates random compile command {@link CompileCommand} with specified
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* command and method descriptor
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*
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* @param command a command type
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* @param md a method descriptor
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* @param type a type of the command, or null to generate any
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* @return the generated compile command
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*/
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public CompileCommand generateCompileCommand(Command command,
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MethodDescriptor md, Scenario.Type type) {
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if (type == null) {
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type = Utils.getRandomElement(Scenario.Type.values());
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}
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return type.createCompileCommand(command, md, generateCompiler());
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}
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/**
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* Generates type of compiler that should be used for the command, or null
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* if any or all compilers should be used
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*
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* @return Compiler value, or null
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*/
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public Scenario.Compiler generateCompiler() {
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Scenario.Compiler[] compilers = Scenario.Compiler.values();
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int compiler = RANDOM.nextInt(compilers.length + 1) - 1;
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return (compiler != -1) ? compilers[compiler] : null;
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}
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/**
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* Generates random diagnostic command
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* {@link Scenario.Type}
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*/
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public Scenario.JcmdType generateJcmdType() {
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return Utils.getRandomElement(Scenario.JcmdType.values());
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}
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}
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