--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/sysdict/share/ChainGen.java Wed May 16 16:43:11 2018 -0700
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 2002, 2018, 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 nsk.sysdict.share;
+
+import java.io.*;
+
+/**
+ * This tools generates a chain of classes.
+ * For more details, use:
+ * <pre>
+ * java ChainGen -help
+ * </pre>
+ */
+public class ChainGen {
+ private static final int FATS_HEIGHT = 5;
+ private static final int FATS_WEIGHT = 10000;
+ private static final int LEANS_HEIGHT = 50;
+ private static final int LEANS_WEIGHT = 1;
+
+ private static void explain(Object x) {
+ System.err.println("# " + x);
+ }
+
+ public static void main(String args[]) {
+ if (args.length < 1 || args[0].toLowerCase().startsWith("-h")) {
+ explain("Generates a chain classes extending each other.");
+ explain("");
+ explain("Use:");
+ explain(" java ChainGen $NAME $HEIGHT $WEIGHT");
+ explain("Or:");
+ explain(" java ChainGen \"fats\"");
+ explain("Or:");
+ explain(" java ChainGen \"leans\"");
+ explain("");
+ explain("This creates:");
+ explain(" ${NAME}Info.java class displaying HEIGHT and WEIGHT.");
+ explain(" ${NAME}XXXXXX.java defining classes chain.");
+ explain("");
+ explain("Here:");
+ explain(" HEIGHT and WEIGHT must be positive integers.");
+ explain(" Defaults for \"fats\": HEIGHT is " + FATS_HEIGHT
+ + ", WEIGHT is " + FATS_WEIGHT +".");
+ explain(" Defaults for \"leans\": HEIGHT is " + LEANS_HEIGHT
+ + ", WEIGHT is " + LEANS_WEIGHT +".");
+ System.exit(1);
+ };
+ String name;
+ int height, weight;
+ if (args[0].toLowerCase().equals("fats")) {
+ name = "Fats";
+ height = FATS_HEIGHT;
+ weight = FATS_WEIGHT;
+ } else if (args[0].toLowerCase().equals("leans")) {
+ name = "Leans";
+ height = LEANS_HEIGHT;
+ weight = LEANS_WEIGHT;
+ } else {
+ name = args[0];
+ height = Integer.parseInt(args[1]);
+ weight = Integer.parseInt(args[2]);
+ };
+ try {
+ doit(name, height, weight);
+ } catch (IOException exception) {
+ exception.printStackTrace(System.err);
+ System.exit(1);
+ }
+ }
+
+ private static void doit(String name, int height, int weight)
+ throws FileNotFoundException
+ {
+ // Constants definition:
+ PrintStream info = new PrintStream(
+ new FileOutputStream(new File(name + "Info.java"))
+ );
+ info.println("// This file is generated by: ChainGen.java");
+ info.println("package nsk.sysdict.share;");
+ info.println("public class " + name + "Info {");
+ info.println(" public static final int HEIGHT = " + height + ";");
+ info.println(" private static final int WEIGHT = " + weight + ";");
+ info.println(" public static final String rootName = \"" + name + "\";");
+ info.println(" public static final String[] nodeNames = new String[] {");
+ // Generate a series of fat classes:
+ for (int index=0; index<height; index++) {
+ String suffix = digits(index,6);
+ String className = name + suffix;
+ info.println(" \"" + suffix + "\""
+ + (index+1<height? "," : ""));
+ PrintStream chain = new PrintStream(
+ new FileOutputStream(new File(className + ".java"))
+ );
+ chain.println("// This file is generated by: ChainGen.java");
+ chain.println("package nsk.sysdict.share;");
+ chain.println("class " + className
+ + (index>0? " extends " + name + digits(index-1,6): "")
+ + " {");
+ for (int w=0; w<weight; w++) {
+ String fieldName = "fill_" + className + "_" + digits(w,6);
+ chain.println(" static long " + fieldName + ";");
+ }
+ chain.println("}");
+ chain.close();
+ };
+ //
+ info.println(" };");
+ info.println("}");
+ info.close();
+ }
+
+ /**
+ * Convert <tt>x</tt> to <tt>n</tt>-digits string.
+ */
+ private static String digits(int x, int n) {
+ String s = "" + x;
+ while (s.length() < n)
+ s = "0" + s;
+ return s;
+ }
+}