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comparison graal/com.oracle.jvmci.runtime/src/com/oracle/jvmci/runtime/JVMCI.java @ 21527:07b088d61d5d

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added HotSpotJVMCIRuntime* classes, replaced references to HotSpotGraalRuntime in VM with HotSpotJVMCIRuntime (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Fri, 22 May 2015 23:26:20 +0200
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21526:1da7aef31a08 21527:07b088d61d5d
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 package com.oracle.jvmci.runtime;
24
25 import java.util.*;
26
27 public class JVMCI {
28
29 private static final JVMCIRuntime runtime;
30
31 private static native JVMCIRuntime initializeRuntime();
32
33 /**
34 * Gets the singleton {@link JVMCIRuntime} instance available to the application.
35 *
36 * @throws UnsupportedOperationException if JVMCI is not supported
37 */
38 public static JVMCIRuntime getRuntime() {
39 if (runtime == null) {
40 String javaHome = System.getProperty("java.home");
41 String vmName = System.getProperty("java.vm.name");
42 Formatter errorMessage = new Formatter();
43 errorMessage.format("The VM does not support the JVMCI API.%n");
44 errorMessage.format("Currently used Java home directory is %s.%n", javaHome);
45 errorMessage.format("Currently used VM configuration is: %s", vmName);
46 throw new UnsupportedOperationException(errorMessage.toString());
47 }
48 return runtime;
49 }
50
51 static {
52 JVMCIRuntime rt = null;
53 try {
54 rt = initializeRuntime();
55 } catch (UnsatisfiedLinkError e) {
56 }
57 runtime = rt;
58 }
59 }