/*

 * Copyright (c) 2015, 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 compiler.compilercontrol.share;

import compiler.compilercontrol.share.method.MethodDescriptor;

import compiler.compilercontrol.share.method.MethodGenerator;

import jdk.test.lib.Pair;

import pool.PoolHelper;

import java.lang.reflect.Executable;

import java.util.List;

import java.util.concurrent.Callable;

public abstract class AbstractTestBase {

    protected static final MethodGenerator METHOD_GEN = new MethodGenerator();

    protected static final int ATTEMPTS = 25;

    protected static final List<Pair<Executable, Callable<?>>> METHODS

            = new PoolHelper().getAllMethods(PoolHelper.METHOD_FILTER);

    public abstract void test();

    /**

     * Generate random valid method descriptor

     *

     * @param exec method to make descriptor for

     * @return a valid {@link MethodDescriptor#isValid()} descriptor instance

     */

    public static MethodDescriptor getValidMethodDescriptor(Executable exec) {

        MethodDescriptor md = METHOD_GEN.generateRandomDescriptor(exec);

        for (int i = 0; !md.isValid() && i < ATTEMPTS; i++) {

            md = METHOD_GEN.generateRandomDescriptor(exec);

        }

        if (!md.isValid() || "any.method()".matches(md.getRegexp())) {

            /* if we haven't got a valid pattern or it matches any method

               leading to timeouts, then use plain standard descriptor */

            md = MethodGenerator.commandDescriptor(exec);

        }

        return md;

    }

}