| /* |
| * Copyright (c) 2012, 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 org.graalvm.compiler.api.test; |
| |
| import java.util.Formatter; |
| |
| import jdk.vm.ci.runtime.JVMCI; |
| import jdk.vm.ci.runtime.JVMCICompiler; |
| import jdk.vm.ci.services.Services; |
| |
| import org.graalvm.compiler.api.runtime.GraalJVMCICompiler; |
| import org.graalvm.compiler.api.runtime.GraalRuntime; |
| |
| /** |
| * Access point for {@linkplain #getRuntime() retrieving} the {@link GraalRuntime} instance of the |
| * system compiler from unit tests. |
| */ |
| public class Graal { |
| |
| private static final GraalRuntime runtime = initializeRuntime(); |
| |
| private static GraalRuntime initializeRuntime() { |
| Services.initializeJVMCI(); |
| JVMCICompiler compiler = JVMCI.getRuntime().getCompiler(); |
| if (compiler instanceof GraalJVMCICompiler) { |
| GraalJVMCICompiler graal = (GraalJVMCICompiler) compiler; |
| return graal.getGraalRuntime(); |
| } else { |
| return new InvalidGraalRuntime(); |
| } |
| } |
| |
| /** |
| * Gets the singleton {@link GraalRuntime} instance available to unit tests. |
| */ |
| public static GraalRuntime getRuntime() { |
| return runtime; |
| } |
| |
| /** |
| * Gets a capability provided by the {@link GraalRuntime} instance available to the application. |
| * |
| * @throws UnsupportedOperationException if the capability is not available |
| */ |
| public static <T> T getRequiredCapability(Class<T> clazz) { |
| T t = getRuntime().getCapability(clazz); |
| if (t == null) { |
| String javaHome = System.getProperty("java.home"); |
| String vmName = System.getProperty("java.vm.name"); |
| Formatter errorMessage = new Formatter(); |
| if (getRuntime().getClass() == InvalidGraalRuntime.class) { |
| errorMessage.format("The VM does not support the Graal API.%n"); |
| } else { |
| errorMessage.format("The VM does not expose required Graal capability %s.%n", clazz.getName()); |
| } |
| errorMessage.format("Currently used Java home directory is %s.%n", javaHome); |
| errorMessage.format("Currently used VM configuration is: %s", vmName); |
| throw new UnsupportedOperationException(errorMessage.toString()); |
| } |
| return t; |
| } |
| |
| private static final class InvalidGraalRuntime implements GraalRuntime { |
| |
| @Override |
| public String getName() { |
| return ""; |
| } |
| |
| @Override |
| public <T> T getCapability(Class<T> clazz) { |
| return null; |
| } |
| } |
| } |