--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.desktop/share/classes/sun/java2d/marlin/MarlinUtils.java Mon Nov 23 14:35:55 2015 -0800
@@ -0,0 +1,104 @@
+/*
+ * 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. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 sun.java2d.marlin;
+
+import jdk.internal.misc.JavaLangAccess;
+import jdk.internal.misc.SharedSecrets;
+
+public final class MarlinUtils {
+ // TODO: use sun.util.logging.PlatformLogger once in JDK9
+ private static final java.util.logging.Logger log;
+
+ static {
+ if (MarlinConst.useLogger) {
+ log = java.util.logging.Logger.getLogger("sun.java2d.marlin");
+ } else {
+ log = null;
+ }
+ }
+
+ private MarlinUtils() {
+ // no-op
+ }
+
+ public static void logInfo(final String msg) {
+ if (MarlinConst.useLogger) {
+ log.info(msg);
+ } else if (MarlinConst.enableLogs) {
+ System.out.print("INFO: ");
+ System.out.println(msg);
+ }
+ }
+
+ public static void logException(final String msg, final Throwable th) {
+ if (MarlinConst.useLogger) {
+// log.warning(msg, th);
+ log.log(java.util.logging.Level.WARNING, msg, th);
+ } else if (MarlinConst.enableLogs) {
+ System.out.print("WARNING: ");
+ System.out.println(msg);
+ th.printStackTrace(System.err);
+ }
+ }
+
+ // Returns the caller's class and method's name; best effort
+ // if cannot infer, return the logger's name.
+ static String getCallerInfo(String className) {
+ String sourceClassName = null;
+ String sourceMethodName = null;
+
+ JavaLangAccess access = SharedSecrets.getJavaLangAccess();
+ Throwable throwable = new Throwable();
+ int depth = access.getStackTraceDepth(throwable);
+
+ boolean lookingForClassName = true;
+ for (int ix = 0; ix < depth; ix++) {
+ // Calling getStackTraceElement directly prevents the VM
+ // from paying the cost of building the entire stack frame.
+ StackTraceElement frame = access.getStackTraceElement(throwable, ix);
+ String cname = frame.getClassName();
+ if (lookingForClassName) {
+ // Skip all frames until we have found the first frame having the class name.
+ if (cname.equals(className)) {
+ lookingForClassName = false;
+ }
+ } else {
+ if (!cname.equals(className)) {
+ // We've found the relevant frame.
+ sourceClassName = cname;
+ sourceMethodName = frame.getMethodName();
+ break;
+ }
+ }
+ }
+
+ if (sourceClassName != null) {
+ return sourceClassName + " " + sourceMethodName;
+ } else {
+ return "unknown";
+ }
+ }
+}