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

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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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.jvmci.runtime/src/com/oracle/jvmci/runtime/JVMCI.java	Fri May 22 23:26:20 2015 +0200
@@ -0,0 +1,59 @@
+/*
+ * 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 com.oracle.jvmci.runtime;
+
+import java.util.*;
+
+public class JVMCI {
+
+    private static final JVMCIRuntime runtime;
+
+    private static native JVMCIRuntime initializeRuntime();
+
+    /**
+     * Gets the singleton {@link JVMCIRuntime} instance available to the application.
+     *
+     * @throws UnsupportedOperationException if JVMCI is not supported
+     */
+    public static JVMCIRuntime getRuntime() {
+        if (runtime == null) {
+            String javaHome = System.getProperty("java.home");
+            String vmName = System.getProperty("java.vm.name");
+            Formatter errorMessage = new Formatter();
+            errorMessage.format("The VM does not support the JVMCI API.%n");
+            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 runtime;
+    }
+
+    static {
+        JVMCIRuntime rt = null;
+        try {
+            rt = initializeRuntime();
+        } catch (UnsatisfiedLinkError e) {
+        }
+        runtime = rt;
+    }
+}